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CHD: Enable FLAC via library (on Linux builds)

This commit is contained in:
Christoph "baka0815" Schwerdtfeger 2018-09-22 17:19:26 +02:00
parent b4155b0c23
commit b1be3af1a1
41 changed files with 27145 additions and 2 deletions
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core/deps/chdr/flac.h
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#define __FLAC_H__
#include <stdint.h>
#include "FLAC/all.h"
#include "deps/flac/include/FLAC/all.h"
/***************************************************************************
* TYPE DEFINITIONS

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core/deps/flac/include/FLAC/all.h Normal file
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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__ALL_H
#define FLAC__ALL_H
#include "export.h"
#include "assert.h"
#include "callback.h"
#include "format.h"
#include "metadata.h"
#include "ordinals.h"
#include "stream_decoder.h"
#include "stream_encoder.h"
/** \mainpage
*
* \section intro Introduction
*
* This is the documentation for the FLAC C and C++ APIs. It is
* highly interconnected; this introduction should give you a top
* level idea of the structure and how to find the information you
* need. As a prerequisite you should have at least a basic
* knowledge of the FLAC format, documented
* <A HREF="../format.html">here</A>.
*
* \section c_api FLAC C API
*
* The FLAC C API is the interface to libFLAC, a set of structures
* describing the components of FLAC streams, and functions for
* encoding and decoding streams, as well as manipulating FLAC
* metadata in files. The public include files will be installed
* in your include area (for example /usr/include/FLAC/...).
*
* By writing a little code and linking against libFLAC, it is
* relatively easy to add FLAC support to another program. The
* library is licensed under <A HREF="../license.html">Xiph's BSD license</A>.
* Complete source code of libFLAC as well as the command-line
* encoder and plugins is available and is a useful source of
* examples.
*
* Aside from encoders and decoders, libFLAC provides a powerful
* metadata interface for manipulating metadata in FLAC files. It
* allows the user to add, delete, and modify FLAC metadata blocks
* and it can automatically take advantage of PADDING blocks to avoid
* rewriting the entire FLAC file when changing the size of the
* metadata.
*
* libFLAC usually only requires the standard C library and C math
* library. In particular, threading is not used so there is no
* dependency on a thread library. However, libFLAC does not use
* global variables and should be thread-safe.
*
* libFLAC also supports encoding to and decoding from Ogg FLAC.
* However the metadata editing interfaces currently have limited
* read-only support for Ogg FLAC files.
*
* \section cpp_api FLAC C++ API
*
* The FLAC C++ API is a set of classes that encapsulate the
* structures and functions in libFLAC. They provide slightly more
* functionality with respect to metadata but are otherwise
* equivalent. For the most part, they share the same usage as
* their counterparts in libFLAC, and the FLAC C API documentation
* can be used as a supplement. The public include files
* for the C++ API will be installed in your include area (for
* example /usr/include/FLAC++/...).
*
* libFLAC++ is also licensed under
* <A HREF="../license.html">Xiph's BSD license</A>.
*
* \section getting_started Getting Started
*
* A good starting point for learning the API is to browse through
* the <A HREF="modules.html">modules</A>. Modules are logical
* groupings of related functions or classes, which correspond roughly
* to header files or sections of header files. Each module includes a
* detailed description of the general usage of its functions or
* classes.
*
* From there you can go on to look at the documentation of
* individual functions. You can see different views of the individual
* functions through the links in top bar across this page.
*
* If you prefer a more hands-on approach, you can jump right to some
* <A HREF="../documentation_example_code.html">example code</A>.
*
* \section porting_guide Porting Guide
*
* Starting with FLAC 1.1.3 a \link porting Porting Guide \endlink
* has been introduced which gives detailed instructions on how to
* port your code to newer versions of FLAC.
*
* \section embedded_developers Embedded Developers
*
* libFLAC has grown larger over time as more functionality has been
* included, but much of it may be unnecessary for a particular embedded
* implementation. Unused parts may be pruned by some simple editing of
* src/libFLAC/Makefile.am. In general, the decoders, encoders, and
* metadata interface are all independent from each other.
*
* It is easiest to just describe the dependencies:
*
* - All modules depend on the \link flac_format Format \endlink module.
* - The decoders and encoders depend on the bitbuffer.
* - The decoder is independent of the encoder. The encoder uses the
* decoder because of the verify feature, but this can be removed if
* not needed.
* - Parts of the metadata interface require the stream decoder (but not
* the encoder).
* - Ogg support is selectable through the compile time macro
* \c FLAC__HAS_OGG.
*
* For example, if your application only requires the stream decoder, no
* encoder, and no metadata interface, you can remove the stream encoder
* and the metadata interface, which will greatly reduce the size of the
* library.
*
* Also, there are several places in the libFLAC code with comments marked
* with "OPT:" where a #define can be changed to enable code that might be
* faster on a specific platform. Experimenting with these can yield faster
* binaries.
*/
/** \defgroup porting Porting Guide for New Versions
*
* This module describes differences in the library interfaces from
* version to version. It assists in the porting of code that uses
* the libraries to newer versions of FLAC.
*
* One simple facility for making porting easier that has been added
* in FLAC 1.1.3 is a set of \c #defines in \c export.h of each
* library's includes (e.g. \c include/FLAC/export.h). The
* \c #defines mirror the libraries'
* <A HREF="http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning">libtool version numbers</A>,
* e.g. in libFLAC there are \c FLAC_API_VERSION_CURRENT,
* \c FLAC_API_VERSION_REVISION, and \c FLAC_API_VERSION_AGE.
* These can be used to support multiple versions of an API during the
* transition phase, e.g.
*
* \code
* #if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
* legacy code
* #else
* new code
* #endif
* \endcode
*
* The source will work for multiple versions and the legacy code can
* easily be removed when the transition is complete.
*
* Another available symbol is FLAC_API_SUPPORTS_OGG_FLAC (defined in
* include/FLAC/export.h), which can be used to determine whether or not
* the library has been compiled with support for Ogg FLAC. This is
* simpler than trying to call an Ogg init function and catching the
* error.
*/
/** \defgroup porting_1_1_2_to_1_1_3 Porting from FLAC 1.1.2 to 1.1.3
* \ingroup porting
*
* \brief
* This module describes porting from FLAC 1.1.2 to FLAC 1.1.3.
*
* The main change between the APIs in 1.1.2 and 1.1.3 is that they have
* been simplified. First, libOggFLAC has been merged into libFLAC and
* libOggFLAC++ has been merged into libFLAC++. Second, both the three
* decoding layers and three encoding layers have been merged into a
* single stream decoder and stream encoder. That is, the functionality
* of FLAC__SeekableStreamDecoder and FLAC__FileDecoder has been merged
* into FLAC__StreamDecoder, and FLAC__SeekableStreamEncoder and
* FLAC__FileEncoder into FLAC__StreamEncoder. Only the
* FLAC__StreamDecoder and FLAC__StreamEncoder remain. What this means
* is there is now a single API that can be used to encode or decode
* streams to/from native FLAC or Ogg FLAC and the single API can work
* on both seekable and non-seekable streams.
*
* Instead of creating an encoder or decoder of a certain layer, now the
* client will always create a FLAC__StreamEncoder or
* FLAC__StreamDecoder. The old layers are now differentiated by the
* initialization function. For example, for the decoder,
* FLAC__stream_decoder_init() has been replaced by
* FLAC__stream_decoder_init_stream(). This init function takes
* callbacks for the I/O, and the seeking callbacks are optional. This
* allows the client to use the same object for seekable and
* non-seekable streams. For decoding a FLAC file directly, the client
* can use FLAC__stream_decoder_init_file() and pass just a filename
* and fewer callbacks; most of the other callbacks are supplied
* internally. For situations where fopen()ing by filename is not
* possible (e.g. Unicode filenames on Windows) the client can instead
* open the file itself and supply the FILE* to
* FLAC__stream_decoder_init_FILE(). The init functions now returns a
* FLAC__StreamDecoderInitStatus instead of FLAC__StreamDecoderState.
* Since the callbacks and client data are now passed to the init
* function, the FLAC__stream_decoder_set_*_callback() functions and
* FLAC__stream_decoder_set_client_data() are no longer needed. The
* rest of the calls to the decoder are the same as before.
*
* There are counterpart init functions for Ogg FLAC, e.g.
* FLAC__stream_decoder_init_ogg_stream(). All the rest of the calls
* and callbacks are the same as for native FLAC.
*
* As an example, in FLAC 1.1.2 a seekable stream decoder would have
* been set up like so:
*
* \code
* FLAC__SeekableStreamDecoder *decoder = FLAC__seekable_stream_decoder_new();
* if(decoder == NULL) do_something;
* FLAC__seekable_stream_decoder_set_md5_checking(decoder, true);
* [... other settings ...]
* FLAC__seekable_stream_decoder_set_read_callback(decoder, my_read_callback);
* FLAC__seekable_stream_decoder_set_seek_callback(decoder, my_seek_callback);
* FLAC__seekable_stream_decoder_set_tell_callback(decoder, my_tell_callback);
* FLAC__seekable_stream_decoder_set_length_callback(decoder, my_length_callback);
* FLAC__seekable_stream_decoder_set_eof_callback(decoder, my_eof_callback);
* FLAC__seekable_stream_decoder_set_write_callback(decoder, my_write_callback);
* FLAC__seekable_stream_decoder_set_metadata_callback(decoder, my_metadata_callback);
* FLAC__seekable_stream_decoder_set_error_callback(decoder, my_error_callback);
* FLAC__seekable_stream_decoder_set_client_data(decoder, my_client_data);
* if(FLAC__seekable_stream_decoder_init(decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK) do_something;
* \endcode
*
* In FLAC 1.1.3 it is like this:
*
* \code
* FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new();
* if(decoder == NULL) do_something;
* FLAC__stream_decoder_set_md5_checking(decoder, true);
* [... other settings ...]
* if(FLAC__stream_decoder_init_stream(
* decoder,
* my_read_callback,
* my_seek_callback, // or NULL
* my_tell_callback, // or NULL
* my_length_callback, // or NULL
* my_eof_callback, // or NULL
* my_write_callback,
* my_metadata_callback, // or NULL
* my_error_callback,
* my_client_data
* ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
* \endcode
*
* or you could do;
*
* \code
* [...]
* FILE *file = fopen("somefile.flac","rb");
* if(file == NULL) do_somthing;
* if(FLAC__stream_decoder_init_FILE(
* decoder,
* file,
* my_write_callback,
* my_metadata_callback, // or NULL
* my_error_callback,
* my_client_data
* ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
* \endcode
*
* or just:
*
* \code
* [...]
* if(FLAC__stream_decoder_init_file(
* decoder,
* "somefile.flac",
* my_write_callback,
* my_metadata_callback, // or NULL
* my_error_callback,
* my_client_data
* ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
* \endcode
*
* Another small change to the decoder is in how it handles unparseable
* streams. Before, when the decoder found an unparseable stream
* (reserved for when the decoder encounters a stream from a future
* encoder that it can't parse), it changed the state to
* \c FLAC__STREAM_DECODER_UNPARSEABLE_STREAM. Now the decoder instead
* drops sync and calls the error callback with a new error code
* \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM. This is
* more robust. If your error callback does not discriminate on the the
* error state, your code does not need to be changed.
*
* The encoder now has a new setting:
* FLAC__stream_encoder_set_apodization(). This is for setting the
* method used to window the data before LPC analysis. You only need to
* add a call to this function if the default is not suitable. There
* are also two new convenience functions that may be useful:
* FLAC__metadata_object_cuesheet_calculate_cddb_id() and
* FLAC__metadata_get_cuesheet().
*
* The \a bytes parameter to FLAC__StreamDecoderReadCallback,
* FLAC__StreamEncoderReadCallback, and FLAC__StreamEncoderWriteCallback
* is now \c size_t instead of \c unsigned.
*/
/** \defgroup porting_1_1_3_to_1_1_4 Porting from FLAC 1.1.3 to 1.1.4
* \ingroup porting
*
* \brief
* This module describes porting from FLAC 1.1.3 to FLAC 1.1.4.
*
* There were no changes to any of the interfaces from 1.1.3 to 1.1.4.
* There was a slight change in the implementation of
* FLAC__stream_encoder_set_metadata(); the function now makes a copy
* of the \a metadata array of pointers so the client no longer needs
* to maintain it after the call. The objects themselves that are
* pointed to by the array are still not copied though and must be
* maintained until the call to FLAC__stream_encoder_finish().
*/
/** \defgroup porting_1_1_4_to_1_2_0 Porting from FLAC 1.1.4 to 1.2.0
* \ingroup porting
*
* \brief
* This module describes porting from FLAC 1.1.4 to FLAC 1.2.0.
*
* There were only very minor changes to the interfaces from 1.1.4 to 1.2.0.
* In libFLAC, \c FLAC__format_sample_rate_is_subset() was added.
* In libFLAC++, \c FLAC::Decoder::Stream::get_decode_position() was added.
*
* Finally, value of the constant \c FLAC__FRAME_HEADER_RESERVED_LEN
* has changed to reflect the conversion of one of the reserved bits
* into active use. It used to be \c 2 and now is \c 1. However the
* FLAC frame header length has not changed, so to skip the proper
* number of bits, use \c FLAC__FRAME_HEADER_RESERVED_LEN +
* \c FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN
*/
/** \defgroup flac FLAC C API
*
* The FLAC C API is the interface to libFLAC, a set of structures
* describing the components of FLAC streams, and functions for
* encoding and decoding streams, as well as manipulating FLAC
* metadata in files.
*
* You should start with the format components as all other modules
* are dependent on it.
*/
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2004-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__CALLBACK_H
#define FLAC__CALLBACK_H
#include "ordinals.h"
#include <stdlib.h> /* for size_t */
/** \file include/FLAC/callback.h
*
* \brief
* This module defines the structures for describing I/O callbacks
* to the other FLAC interfaces.
*
* See the detailed documentation for callbacks in the
* \link flac_callbacks callbacks \endlink module.
*/
/** \defgroup flac_callbacks FLAC/callback.h: I/O callback structures
* \ingroup flac
*
* \brief
* This module defines the structures for describing I/O callbacks
* to the other FLAC interfaces.
*
* The purpose of the I/O callback functions is to create a common way
* for the metadata interfaces to handle I/O.
*
* Originally the metadata interfaces required filenames as the way of
* specifying FLAC files to operate on. This is problematic in some
* environments so there is an additional option to specify a set of
* callbacks for doing I/O on the FLAC file, instead of the filename.
*
* In addition to the callbacks, a FLAC__IOHandle type is defined as an
* opaque structure for a data source.
*
* The callback function prototypes are similar (but not identical) to the
* stdio functions fread, fwrite, fseek, ftell, feof, and fclose. If you use
* stdio streams to implement the callbacks, you can pass fread, fwrite, and
* fclose anywhere a FLAC__IOCallback_Read, FLAC__IOCallback_Write, or
* FLAC__IOCallback_Close is required, and a FILE* anywhere a FLAC__IOHandle
* is required. \warning You generally CANNOT directly use fseek or ftell
* for FLAC__IOCallback_Seek or FLAC__IOCallback_Tell since on most systems
* these use 32-bit offsets and FLAC requires 64-bit offsets to deal with
* large files. You will have to find an equivalent function (e.g. ftello),
* or write a wrapper. The same is true for feof() since this is usually
* implemented as a macro, not as a function whose address can be taken.
*
* \{
*/
#ifdef __cplusplus
extern "C" {
#endif
/** This is the opaque handle type used by the callbacks. Typically
* this is a \c FILE* or address of a file descriptor.
*/
typedef void* FLAC__IOHandle;
/** Signature for the read callback.
* The signature and semantics match POSIX fread() implementations
* and can generally be used interchangeably.
*
* \param ptr The address of the read buffer.
* \param size The size of the records to be read.
* \param nmemb The number of records to be read.
* \param handle The handle to the data source.
* \retval size_t
* The number of records read.
*/
typedef size_t (*FLAC__IOCallback_Read) (void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
/** Signature for the write callback.
* The signature and semantics match POSIX fwrite() implementations
* and can generally be used interchangeably.
*
* \param ptr The address of the write buffer.
* \param size The size of the records to be written.
* \param nmemb The number of records to be written.
* \param handle The handle to the data source.
* \retval size_t
* The number of records written.
*/
typedef size_t (*FLAC__IOCallback_Write) (const void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
/** Signature for the seek callback.
* The signature and semantics mostly match POSIX fseek() WITH ONE IMPORTANT
* EXCEPTION: the offset is a 64-bit type whereas fseek() is generally 'long'
* and 32-bits wide.
*
* \param handle The handle to the data source.
* \param offset The new position, relative to \a whence
* \param whence \c SEEK_SET, \c SEEK_CUR, or \c SEEK_END
* \retval int
* \c 0 on success, \c -1 on error.
*/
typedef int (*FLAC__IOCallback_Seek) (FLAC__IOHandle handle, FLAC__int64 offset, int whence);
/** Signature for the tell callback.
* The signature and semantics mostly match POSIX ftell() WITH ONE IMPORTANT
* EXCEPTION: the offset is a 64-bit type whereas ftell() is generally 'long'
* and 32-bits wide.
*
* \param handle The handle to the data source.
* \retval FLAC__int64
* The current position on success, \c -1 on error.
*/
typedef FLAC__int64 (*FLAC__IOCallback_Tell) (FLAC__IOHandle handle);
/** Signature for the EOF callback.
* The signature and semantics mostly match POSIX feof() but WATCHOUT:
* on many systems, feof() is a macro, so in this case a wrapper function
* must be provided instead.
*
* \param handle The handle to the data source.
* \retval int
* \c 0 if not at end of file, nonzero if at end of file.
*/
typedef int (*FLAC__IOCallback_Eof) (FLAC__IOHandle handle);
/** Signature for the close callback.
* The signature and semantics match POSIX fclose() implementations
* and can generally be used interchangeably.
*
* \param handle The handle to the data source.
* \retval int
* \c 0 on success, \c EOF on error.
*/
typedef int (*FLAC__IOCallback_Close) (FLAC__IOHandle handle);
/** A structure for holding a set of callbacks.
* Each FLAC interface that requires a FLAC__IOCallbacks structure will
* describe which of the callbacks are required. The ones that are not
* required may be set to NULL.
*
* If the seek requirement for an interface is optional, you can signify that
* a data sorce is not seekable by setting the \a seek field to \c NULL.
*/
typedef struct {
FLAC__IOCallback_Read read;
FLAC__IOCallback_Write write;
FLAC__IOCallback_Seek seek;
FLAC__IOCallback_Tell tell;
FLAC__IOCallback_Eof eof;
FLAC__IOCallback_Close close;
} FLAC__IOCallbacks;
/* \} */
#ifdef __cplusplus
}
#endif
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__EXPORT_H
#define FLAC__EXPORT_H
/** \file include/FLAC/export.h
*
* \brief
* This module contains #defines and symbols for exporting function
* calls, and providing version information and compiled-in features.
*
* See the \link flac_export export \endlink module.
*/
/** \defgroup flac_export FLAC/export.h: export symbols
* \ingroup flac
*
* \brief
* This module contains #defines and symbols for exporting function
* calls, and providing version information and compiled-in features.
*
* If you are compiling with MSVC and will link to the static library
* (libFLAC.lib) you should define FLAC__NO_DLL in your project to
* make sure the symbols are exported properly.
*
* \{
*/
#if defined(FLAC__NO_DLL)
#define FLAC_API
#elif defined(_MSC_VER)
#ifdef FLAC_API_EXPORTS
#define FLAC_API __declspec(dllexport)
#else
#define FLAC_API __declspec(dllimport)
#endif
#elif defined(FLAC__USE_VISIBILITY_ATTR)
#define FLAC_API __attribute__ ((visibility ("default")))
#else
#define FLAC_API
#endif
/** These #defines will mirror the libtool-based library version number, see
* http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
*/
#define FLAC_API_VERSION_CURRENT 11
#define FLAC_API_VERSION_REVISION 0 /**< see above */
#define FLAC_API_VERSION_AGE 3 /**< see above */
#ifdef __cplusplus
extern "C" {
#endif
/** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
#ifdef __cplusplus
}
#endif
/* \} */
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__ORDINALS_H
#define FLAC__ORDINALS_H
#if defined(_MSC_VER) && _MSC_VER < 1600
/* Microsoft Visual Studio earlier than the 2010 version did not provide
* the 1999 ISO C Standard header file <stdint.h>.
*/
typedef __int8 FLAC__int8;
typedef unsigned __int8 FLAC__uint8;
typedef __int16 FLAC__int16;
typedef __int32 FLAC__int32;
typedef __int64 FLAC__int64;
typedef unsigned __int16 FLAC__uint16;
typedef unsigned __int32 FLAC__uint32;
typedef unsigned __int64 FLAC__uint64;
#else
/* For MSVC 2010 and everything else which provides <stdint.h>. */
#include <stdint.h>
typedef int8_t FLAC__int8;
typedef uint8_t FLAC__uint8;
typedef int16_t FLAC__int16;
typedef int32_t FLAC__int32;
typedef int64_t FLAC__int64;
typedef uint16_t FLAC__uint16;
typedef uint32_t FLAC__uint32;
typedef uint64_t FLAC__uint64;
#endif
typedef int FLAC__bool;
typedef FLAC__uint8 FLAC__byte;
#ifdef true
#undef true
#endif
#ifdef false
#undef false
#endif
#ifndef __cplusplus
#define true 1
#define false 0
#endif
#endif

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/* alloc - Convenience routines for safely allocating memory
* Copyright (C) 2007-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__SHARE__ALLOC_H
#define FLAC__SHARE__ALLOC_H
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/* WATCHOUT: for c++ you may have to #define __STDC_LIMIT_MACROS 1 real early
* before #including this file, otherwise SIZE_MAX might not be defined
*/
#include <limits.h> /* for SIZE_MAX */
#if HAVE_STDINT_H
#include <stdint.h> /* for SIZE_MAX in case limits.h didn't get it */
#endif
#include <stdlib.h> /* for size_t, malloc(), etc */
#include "share/compat.h"
#ifndef SIZE_MAX
# ifndef SIZE_T_MAX
# ifdef _MSC_VER
# ifdef _WIN64
# define SIZE_T_MAX FLAC__U64L(0xffffffffffffffff)
# else
# define SIZE_T_MAX 0xffffffff
# endif
# else
# error
# endif
# endif
# define SIZE_MAX SIZE_T_MAX
#endif
/* avoid malloc()ing 0 bytes, see:
* https://www.securecoding.cert.org/confluence/display/seccode/MEM04-A.+Do+not+make+assumptions+about+the+result+of+allocating+0+bytes?focusedCommentId=5407003
*/
static inline void *safe_malloc_(size_t size)
{
/* malloc(0) is undefined; FLAC src convention is to always allocate */
if(!size)
size++;
return malloc(size);
}
static inline void *safe_calloc_(size_t nmemb, size_t size)
{
if(!nmemb || !size)
return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
return calloc(nmemb, size);
}
/*@@@@ there's probably a better way to prevent overflows when allocating untrusted sums but this works for now */
static inline void *safe_malloc_add_2op_(size_t size1, size_t size2)
{
size2 += size1;
if(size2 < size1)
return 0;
return safe_malloc_(size2);
}
static inline void *safe_malloc_add_3op_(size_t size1, size_t size2, size_t size3)
{
size2 += size1;
if(size2 < size1)
return 0;
size3 += size2;
if(size3 < size2)
return 0;
return safe_malloc_(size3);
}
static inline void *safe_malloc_add_4op_(size_t size1, size_t size2, size_t size3, size_t size4)
{
size2 += size1;
if(size2 < size1)
return 0;
size3 += size2;
if(size3 < size2)
return 0;
size4 += size3;
if(size4 < size3)
return 0;
return safe_malloc_(size4);
}
void *safe_malloc_mul_2op_(size_t size1, size_t size2) ;
static inline void *safe_malloc_mul_3op_(size_t size1, size_t size2, size_t size3)
{
if(!size1 || !size2 || !size3)
return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
if(size1 > SIZE_MAX / size2)
return 0;
size1 *= size2;
if(size1 > SIZE_MAX / size3)
return 0;
return malloc(size1*size3);
}
/* size1*size2 + size3 */
static inline void *safe_malloc_mul2add_(size_t size1, size_t size2, size_t size3)
{
if(!size1 || !size2)
return safe_malloc_(size3);
if(size1 > SIZE_MAX / size2)
return 0;
return safe_malloc_add_2op_(size1*size2, size3);
}
/* size1 * (size2 + size3) */
static inline void *safe_malloc_muladd2_(size_t size1, size_t size2, size_t size3)
{
if(!size1 || (!size2 && !size3))
return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
size2 += size3;
if(size2 < size3)
return 0;
if(size1 > SIZE_MAX / size2)
return 0;
return malloc(size1*size2);
}
static inline void *safe_realloc_(void *ptr, size_t size)
{
void *oldptr = ptr;
void *newptr = realloc(ptr, size);
if(size > 0 && newptr == 0)
free(oldptr);
return newptr;
}
static inline void *safe_realloc_add_2op_(void *ptr, size_t size1, size_t size2)
{
size2 += size1;
if(size2 < size1) {
free(ptr);
return 0;
}
return realloc(ptr, size2);
}
static inline void *safe_realloc_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
{
size2 += size1;
if(size2 < size1)
return 0;
size3 += size2;
if(size3 < size2)
return 0;
return realloc(ptr, size3);
}
static inline void *safe_realloc_add_4op_(void *ptr, size_t size1, size_t size2, size_t size3, size_t size4)
{
size2 += size1;
if(size2 < size1)
return 0;
size3 += size2;
if(size3 < size2)
return 0;
size4 += size3;
if(size4 < size3)
return 0;
return realloc(ptr, size4);
}
static inline void *safe_realloc_mul_2op_(void *ptr, size_t size1, size_t size2)
{
if(!size1 || !size2)
return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
if(size1 > SIZE_MAX / size2)
return 0;
return safe_realloc_(ptr, size1*size2);
}
/* size1 * (size2 + size3) */
static inline void *safe_realloc_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
{
if(!size1 || (!size2 && !size3))
return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
size2 += size3;
if(size2 < size3)
return 0;
return safe_realloc_mul_2op_(ptr, size1, size2);
}
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2012-2016 Xiph.org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* This is the prefered location of all CPP hackery to make $random_compiler
* work like something approaching a C99 (or maybe more accurately GNU99)
* compiler.
*
* It is assumed that this header will be included after "config.h".
*/
#ifndef FLAC__SHARE__COMPAT_H
#define FLAC__SHARE__COMPAT_H
#if defined _WIN32 && !defined __CYGWIN__
/* where MSVC puts unlink() */
# include <io.h>
#else
# include <unistd.h>
#endif
#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
#include <sys/types.h> /* for off_t */
#define FLAC__off_t __int64 /* use this instead of off_t to fix the 2 GB limit */
#if !defined __MINGW32__
#define fseeko _fseeki64
#define ftello _ftelli64
#else /* MinGW */
#if !defined(HAVE_FSEEKO)
#define fseeko fseeko64
#define ftello ftello64
#endif
#endif
#else
#define FLAC__off_t off_t
#endif
#if HAVE_INTTYPES_H
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#endif
#if defined(_MSC_VER)
#define strtoll _strtoi64
#define strtoull _strtoui64
#endif
#if defined(_MSC_VER)
#define inline __inline
#endif
#if defined __INTEL_COMPILER || (defined _MSC_VER && defined _WIN64)
/* MSVS generates VERY slow 32-bit code with __restrict */
#define flac_restrict __restrict
#elif defined __GNUC__
#define flac_restrict __restrict__
#else
#define flac_restrict
#endif
#define FLAC__U64L(x) x##ULL
#if defined _MSC_VER || defined __MINGW32__
#define FLAC__STRCASECMP _stricmp
#define FLAC__STRNCASECMP _strnicmp
#elif defined __BORLANDC__
#define FLAC__STRCASECMP stricmp
#define FLAC__STRNCASECMP strnicmp
#else
#define FLAC__STRCASECMP strcasecmp
#define FLAC__STRNCASECMP strncasecmp
#endif
#if defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ || defined __EMX__
#include <io.h> /* for _setmode(), chmod() */
#include <fcntl.h> /* for _O_BINARY */
#else
#include <unistd.h> /* for chown(), unlink() */
#endif
#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
#if defined __BORLANDC__
#include <utime.h> /* for utime() */
#else
#include <sys/utime.h> /* for utime() */
#endif
#else
#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
#include <utime.h> /* for utime() */
#endif
#if defined _MSC_VER
# if _MSC_VER >= 1800
# include <inttypes.h>
# elif _MSC_VER >= 1600
/* Visual Studio 2010 has decent C99 support */
# include <stdint.h>
# define PRIu64 "llu"
# define PRId64 "lld"
# define PRIx64 "llx"
# else
# include <limits.h>
# ifndef UINT32_MAX
# define UINT32_MAX _UI32_MAX
# endif
typedef unsigned __int64 uint64_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int8 uint8_t;
typedef __int64 int64_t;
typedef __int32 int32_t;
typedef __int16 int16_t;
typedef __int8 int8_t;
# define PRIu64 "I64u"
# define PRId64 "I64d"
# define PRIx64 "I64x"
# endif
#endif /* defined _MSC_VER */
#ifdef _WIN32
/* All char* strings are in UTF-8 format. Added to support Unicode files on Windows */
#include "share/win_utf8_io.h"
#define flac_printf printf_utf8
#define flac_fprintf fprintf_utf8
#define flac_vfprintf vfprintf_utf8
#include "share/windows_unicode_filenames.h"
#define flac_fopen flac_internal_fopen_utf8
#define flac_chmod flac_internal_chmod_utf8
#define flac_utime flac_internal_utime_utf8
#define flac_unlink flac_internal_unlink_utf8
#define flac_rename flac_internal_rename_utf8
#define flac_stat flac_internal_stat64_utf8
#else
#define flac_printf printf
#define flac_fprintf fprintf
#define flac_vfprintf vfprintf
#define flac_fopen fopen
#define flac_chmod chmod
#define flac_utime utime
#define flac_unlink unlink
#define flac_rename rename
#define flac_stat stat
#endif
#ifdef _WIN32
#define flac_stat_s __stat64 /* stat struct */
#define flac_fstat _fstat64
#else
#define flac_stat_s stat /* stat struct */
#define flac_fstat fstat
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
/* FLAC needs to compile and work correctly on systems with a normal ISO C99
* snprintf as well as Microsoft Visual Studio which has an non-standards
* conformant snprint_s function.
*
* This function wraps the MS version to behave more like the ISO version.
*/
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
int flac_snprintf(char *str, size_t size, const char *fmt, ...);
int flac_vsnprintf(char *str, size_t size, const char *fmt, va_list va);
#ifdef __cplusplus
};
#endif
#endif /* FLAC__SHARE__COMPAT_H */

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/bitmath.h"
/* An example of what FLAC__bitmath_silog2() computes:
*
* silog2(-10) = 5
* silog2(- 9) = 5
* silog2(- 8) = 4
* silog2(- 7) = 4
* silog2(- 6) = 4
* silog2(- 5) = 4
* silog2(- 4) = 3
* silog2(- 3) = 3
* silog2(- 2) = 2
* silog2(- 1) = 2
* silog2( 0) = 0
* silog2( 1) = 2
* silog2( 2) = 3
* silog2( 3) = 3
* silog2( 4) = 4
* silog2( 5) = 4
* silog2( 6) = 4
* silog2( 7) = 4
* silog2( 8) = 5
* silog2( 9) = 5
* silog2( 10) = 5
*/
unsigned FLAC__bitmath_silog2(FLAC__int64 v)
{
if(v == 0)
return 0;
if(v == -1)
return 2;
v = (v < 0) ? (-(v+1)) : v;
return FLAC__bitmath_ilog2_wide(v)+2;
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/cpu.h"
#include "share/compat.h"
#include <stdlib.h>
#include <memory.h>
#if defined(_MSC_VER)
# include <intrin.h> /* for __cpuid() and _xgetbv() */
#endif
#if defined __GNUC__ && defined HAVE_CPUID_H
# include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
#endif
#ifdef DEBUG
#include <stdio.h>
#define dfprintf fprintf
#else
/* This is bad practice, it should be a static void empty function */
#define dfprintf(file, format, ...)
#endif
#if defined FLAC__CPU_IA32
/* these are flags in EDX of CPUID AX=00000001 */
static const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_MMX = 0x00800000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE = 0x02000000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE2 = 0x04000000;
#endif
#if FLAC__HAS_X86INTRIN || FLAC__AVX_SUPPORTED
/* these are flags in ECX of CPUID AX=00000001 */
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE3 = 0x00000001;
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSSE3 = 0x00000200;
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE41 = 0x00080000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE42 = 0x00100000;
/* these are flags in ECX of CPUID AX=00000001 */
static const unsigned FLAC__CPUINFO_IA32_CPUID_OSXSAVE = 0x08000000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX = 0x10000000;
static const unsigned FLAC__CPUINFO_IA32_CPUID_FMA = 0x00001000;
/* these are flags in EBX of CPUID AX=00000007 */
static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX2 = 0x00000020;
#endif
#if defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64
static uint32_t
cpu_xgetbv_x86(void)
{
#if (defined _MSC_VER || defined __INTEL_COMPILER) && FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED
return (uint32_t)_xgetbv(0);
#elif defined __GNUC__
uint32_t lo, hi;
asm volatile (".byte 0x0f, 0x01, 0xd0" : "=a"(lo), "=d"(hi) : "c" (0));
return lo;
#else
return 0;
#endif
}
#endif
static void
ia32_cpu_info (FLAC__CPUInfo *info)
{
#if !defined FLAC__CPU_IA32
(void) info;
#else
FLAC__bool ia32_osxsave = false;
FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
#if !defined FLAC__NO_ASM && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN)
info->use_asm = true; /* we assume a minimum of 80386 with FLAC__CPU_IA32 */
#if defined FLAC__HAS_NASM
if(!FLAC__cpu_have_cpuid_asm_ia32())
return;
#endif
/* http://www.sandpile.org/x86/cpuid.htm */
if (FLAC__HAS_X86INTRIN) {
FLAC__cpu_info_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
info->ia32.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
FLAC__cpu_info_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
}
else {
FLAC__cpu_info_asm_ia32(&flags_edx, &flags_ecx);
}
info->ia32.cmov = (flags_edx & FLAC__CPUINFO_IA32_CPUID_CMOV ) ? true : false;
info->ia32.mmx = (flags_edx & FLAC__CPUINFO_IA32_CPUID_MMX ) ? true : false;
info->ia32.sse = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE ) ? true : false;
info->ia32.sse2 = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE2 ) ? true : false;
info->ia32.sse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE3 ) ? true : false;
info->ia32.ssse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSSE3) ? true : false;
info->ia32.sse41 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE41) ? true : false;
info->ia32.sse42 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE42) ? true : false;
if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
ia32_osxsave = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_OSXSAVE) ? true : false;
info->ia32.avx = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_AVX ) ? true : false;
info->ia32.fma = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_FMA ) ? true : false;
FLAC__cpu_info_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
info->ia32.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
}
dfprintf(stderr, "CPU info (IA-32):\n");
dfprintf(stderr, " CMOV ....... %c\n", info->ia32.cmov ? 'Y' : 'n');
dfprintf(stderr, " MMX ........ %c\n", info->ia32.mmx ? 'Y' : 'n');
dfprintf(stderr, " SSE ........ %c\n", info->ia32.sse ? 'Y' : 'n');
dfprintf(stderr, " SSE2 ....... %c\n", info->ia32.sse2 ? 'Y' : 'n');
dfprintf(stderr, " SSE3 ....... %c\n", info->ia32.sse3 ? 'Y' : 'n');
dfprintf(stderr, " SSSE3 ...... %c\n", info->ia32.ssse3 ? 'Y' : 'n');
dfprintf(stderr, " SSE41 ...... %c\n", info->ia32.sse41 ? 'Y' : 'n');
dfprintf(stderr, " SSE42 ...... %c\n", info->ia32.sse42 ? 'Y' : 'n');
if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX ........ %c\n", info->ia32.avx ? 'Y' : 'n');
dfprintf(stderr, " FMA ........ %c\n", info->ia32.fma ? 'Y' : 'n');
dfprintf(stderr, " AVX2 ....... %c\n", info->ia32.avx2 ? 'Y' : 'n');
}
/*
* now have to check for OS support of AVX instructions
*/
if (!FLAC__HAS_X86INTRIN || !info->ia32.avx || !ia32_osxsave || (cpu_xgetbv_x86() & 0x6) != 0x6) {
/* no OS AVX support */
info->ia32.avx = false;
info->ia32.avx2 = false;
info->ia32.fma = false;
}
if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
}
#else
info->use_asm = false;
#endif
#endif
}
static void
x86_64_cpu_info (FLAC__CPUInfo *info)
{
#if !defined FLAC__NO_ASM && FLAC__HAS_X86INTRIN
FLAC__bool x86_osxsave = false;
FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
info->use_asm = true;
/* http://www.sandpile.org/x86/cpuid.htm */
FLAC__cpu_info_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
info->x86.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
FLAC__cpu_info_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
info->x86.sse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE3 ) ? true : false;
info->x86.ssse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSSE3) ? true : false;
info->x86.sse41 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE41) ? true : false;
info->x86.sse42 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE42) ? true : false;
if (FLAC__AVX_SUPPORTED) {
x86_osxsave = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_OSXSAVE) ? true : false;
info->x86.avx = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_AVX ) ? true : false;
info->x86.fma = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_FMA ) ? true : false;
FLAC__cpu_info_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
info->x86.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
}
dfprintf(stderr, "CPU info (x86-64):\n");
dfprintf(stderr, " SSE3 ....... %c\n", info->x86.sse3 ? 'Y' : 'n');
dfprintf(stderr, " SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
dfprintf(stderr, " SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
dfprintf(stderr, " SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
if (FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX ........ %c\n", info->x86.avx ? 'Y' : 'n');
dfprintf(stderr, " FMA ........ %c\n", info->x86.fma ? 'Y' : 'n');
dfprintf(stderr, " AVX2 ....... %c\n", info->x86.avx2 ? 'Y' : 'n');
}
/*
* now have to check for OS support of AVX instructions
*/
if (!info->x86.avx || !x86_osxsave || (cpu_xgetbv_x86() & 0x6) != 0x6) {
/* no OS AVX support */
info->x86.avx = false;
info->x86.avx2 = false;
info->x86.fma = false;
}
if (FLAC__AVX_SUPPORTED) {
dfprintf(stderr, " AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
}
#else
/* Silence compiler warnings. */
(void) info;
#if defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64
if (0) cpu_xgetbv_x86 ();
#endif
#endif
}
void FLAC__cpu_info (FLAC__CPUInfo *info)
{
memset(info, 0, sizeof(*info));
#ifdef FLAC__CPU_IA32
info->type = FLAC__CPUINFO_TYPE_IA32;
#elif defined FLAC__CPU_X86_64
info->type = FLAC__CPUINFO_TYPE_X86_64;
#else
info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
info->use_asm = false;
#endif
switch (info->type) {
case FLAC__CPUINFO_TYPE_IA32:
ia32_cpu_info (info);
break;
case FLAC__CPUINFO_TYPE_X86_64:
x86_64_cpu_info (info);
break;
default:
info->use_asm = false;
break;
}
}
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
void FLAC__cpu_info_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx)
{
#if defined _MSC_VER || defined __INTEL_COMPILER
int cpuinfo[4];
int ext = level & 0x80000000;
__cpuid(cpuinfo, ext);
if((unsigned)cpuinfo[0] >= level) {
#if FLAC__AVX_SUPPORTED
__cpuidex(cpuinfo, ext, 0); /* for AVX2 detection */
#else
__cpuid(cpuinfo, ext); /* some old compilers don't support __cpuidex */
#endif
*eax = cpuinfo[0]; *ebx = cpuinfo[1]; *ecx = cpuinfo[2]; *edx = cpuinfo[3];
return;
}
#elif defined __GNUC__ && defined HAVE_CPUID_H
FLAC__uint32 ext = level & 0x80000000;
__cpuid(ext, *eax, *ebx, *ecx, *edx);
if (*eax >= level) {
__cpuid_count(level, 0, *eax, *ebx, *ecx, *edx);
return;
}
#endif
*eax = *ebx = *ecx = *edx = 0;
}
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/crc.h"
/* CRC-8, poly = x^8 + x^2 + x^1 + x^0, init = 0 */
FLAC__byte const FLAC__crc8_table[256] = {
0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15,
0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5,
0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85,
0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2,
0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32,
0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C,
0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC,
0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C,
0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B,
0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB,
0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB,
0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
};
/* CRC-16, poly = x^16 + x^15 + x^2 + x^0, init = 0 */
unsigned const FLAC__crc16_table[256] = {
0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
};
void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc)
{
*crc = FLAC__crc8_table[*crc ^ data];
}
void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc)
{
while(len--)
*crc = FLAC__crc8_table[*crc ^ *data++];
}
FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len)
{
FLAC__uint8 crc = 0;
while(len--)
crc = FLAC__crc8_table[crc ^ *data++];
return crc;
}
unsigned FLAC__crc16(const FLAC__byte *data, unsigned len)
{
unsigned crc = 0;
while(len--)
crc = ((crc<<8) ^ FLAC__crc16_table[(crc>>8) ^ *data++]) & 0xffff;
return crc;
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <math.h>
#include <string.h>
#include "share/compat.h"
#include "private/bitmath.h"
#include "private/fixed.h"
#include "private/macros.h"
#include "FLAC/assert.h"
#ifdef local_abs
#undef local_abs
#endif
#define local_abs(x) ((unsigned)((x)<0? -(x) : (x)))
#ifdef FLAC__INTEGER_ONLY_LIBRARY
/* rbps stands for residual bits per sample
*
* (ln(2) * err)
* rbps = log (-----------)
* 2 ( n )
*/
static FLAC__fixedpoint local__compute_rbps_integerized(FLAC__uint32 err, FLAC__uint32 n)
{
FLAC__uint32 rbps;
unsigned bits; /* the number of bits required to represent a number */
int fracbits; /* the number of bits of rbps that comprise the fractional part */
FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
FLAC__ASSERT(err > 0);
FLAC__ASSERT(n > 0);
FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
if(err <= n)
return 0;
/*
* The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
* These allow us later to know we won't lose too much precision in the
* fixed-point division (err<<fracbits)/n.
*/
fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2(err)+1);
err <<= fracbits;
err /= n;
/* err now holds err/n with fracbits fractional bits */
/*
* Whittle err down to 16 bits max. 16 significant bits is enough for
* our purposes.
*/
FLAC__ASSERT(err > 0);
bits = FLAC__bitmath_ilog2(err)+1;
if(bits > 16) {
err >>= (bits-16);
fracbits -= (bits-16);
}
rbps = (FLAC__uint32)err;
/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
rbps *= FLAC__FP_LN2;
fracbits += 16;
FLAC__ASSERT(fracbits >= 0);
/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
{
const int f = fracbits & 3;
if(f) {
rbps >>= f;
fracbits -= f;
}
}
rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
if(rbps == 0)
return 0;
/*
* The return value must have 16 fractional bits. Since the whole part
* of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
* must be >= -3, these assertion allows us to be able to shift rbps
* left if necessary to get 16 fracbits without losing any bits of the
* whole part of rbps.
*
* There is a slight chance due to accumulated error that the whole part
* will require 6 bits, so we use 6 in the assertion. Really though as
* long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
*/
FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
FLAC__ASSERT(fracbits >= -3);
/* now shift the decimal point into place */
if(fracbits < 16)
return rbps << (16-fracbits);
else if(fracbits > 16)
return rbps >> (fracbits-16);
else
return rbps;
}
static FLAC__fixedpoint local__compute_rbps_wide_integerized(FLAC__uint64 err, FLAC__uint32 n)
{
FLAC__uint32 rbps;
unsigned bits; /* the number of bits required to represent a number */
int fracbits; /* the number of bits of rbps that comprise the fractional part */
FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
FLAC__ASSERT(err > 0);
FLAC__ASSERT(n > 0);
FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
if(err <= n)
return 0;
/*
* The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
* These allow us later to know we won't lose too much precision in the
* fixed-point division (err<<fracbits)/n.
*/
fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2_wide(err)+1);
err <<= fracbits;
err /= n;
/* err now holds err/n with fracbits fractional bits */
/*
* Whittle err down to 16 bits max. 16 significant bits is enough for
* our purposes.
*/
FLAC__ASSERT(err > 0);
bits = FLAC__bitmath_ilog2_wide(err)+1;
if(bits > 16) {
err >>= (bits-16);
fracbits -= (bits-16);
}
rbps = (FLAC__uint32)err;
/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
rbps *= FLAC__FP_LN2;
fracbits += 16;
FLAC__ASSERT(fracbits >= 0);
/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
{
const int f = fracbits & 3;
if(f) {
rbps >>= f;
fracbits -= f;
}
}
rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
if(rbps == 0)
return 0;
/*
* The return value must have 16 fractional bits. Since the whole part
* of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
* must be >= -3, these assertion allows us to be able to shift rbps
* left if necessary to get 16 fracbits without losing any bits of the
* whole part of rbps.
*
* There is a slight chance due to accumulated error that the whole part
* will require 6 bits, so we use 6 in the assertion. Really though as
* long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
*/
FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
FLAC__ASSERT(fracbits >= -3);
/* now shift the decimal point into place */
if(fracbits < 16)
return rbps << (16-fracbits);
else if(fracbits > 16)
return rbps >> (fracbits-16);
else
return rbps;
}
#endif
#ifndef FLAC__INTEGER_ONLY_LIBRARY
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
#else
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
#endif
{
FLAC__int32 last_error_0 = data[-1];
FLAC__int32 last_error_1 = data[-1] - data[-2];
FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
FLAC__int32 error, save;
FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
unsigned i, order;
for(i = 0; i < data_len; i++) {
error = data[i] ; total_error_0 += local_abs(error); save = error;
error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
}
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
#ifndef FLAC__INTEGER_ONLY_LIBRARY
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
#else
residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_integerized(total_error_0, data_len) : 0;
residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_integerized(total_error_1, data_len) : 0;
residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_integerized(total_error_2, data_len) : 0;
residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_integerized(total_error_3, data_len) : 0;
residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_integerized(total_error_4, data_len) : 0;
#endif
return order;
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
#else
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
#endif
{
FLAC__int32 last_error_0 = data[-1];
FLAC__int32 last_error_1 = data[-1] - data[-2];
FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
FLAC__int32 error, save;
/* total_error_* are 64-bits to avoid overflow when encoding
* erratic signals when the bits-per-sample and blocksize are
* large.
*/
FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
unsigned i, order;
for(i = 0; i < data_len; i++) {
error = data[i] ; total_error_0 += local_abs(error); save = error;
error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
}
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
#ifndef FLAC__INTEGER_ONLY_LIBRARY
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
#else
residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_wide_integerized(total_error_0, data_len) : 0;
residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_wide_integerized(total_error_1, data_len) : 0;
residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_wide_integerized(total_error_2, data_len) : 0;
residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_wide_integerized(total_error_3, data_len) : 0;
residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_wide_integerized(total_error_4, data_len) : 0;
#endif
return order;
}
void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[])
{
const int idata_len = (int)data_len;
int i;
switch(order) {
case 0:
FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
memcpy(residual, data, sizeof(residual[0])*data_len);
break;
case 1:
for(i = 0; i < idata_len; i++)
residual[i] = data[i] - data[i-1];
break;
case 2:
for(i = 0; i < idata_len; i++)
residual[i] = data[i] - 2*data[i-1] + data[i-2];
break;
case 3:
for(i = 0; i < idata_len; i++)
residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
break;
case 4:
for(i = 0; i < idata_len; i++)
residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
break;
default:
FLAC__ASSERT(0);
}
}
void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[])
{
int i, idata_len = (int)data_len;
switch(order) {
case 0:
FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
memcpy(data, residual, sizeof(residual[0])*data_len);
break;
case 1:
for(i = 0; i < idata_len; i++)
data[i] = residual[i] + data[i-1];
break;
case 2:
for(i = 0; i < idata_len; i++)
data[i] = residual[i] + 2*data[i-1] - data[i-2];
break;
case 3:
for(i = 0; i < idata_len; i++)
data[i] = residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
break;
case 4:
for(i = 0; i < idata_len; i++)
data[i] = residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
break;
default:
FLAC__ASSERT(0);
}
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/cpu.h"
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#ifndef FLAC__NO_ASM
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
#include "private/fixed.h"
#ifdef FLAC__SSE2_SUPPORTED
#include <emmintrin.h> /* SSE2 */
#include <math.h>
#include "private/macros.h"
#include "share/compat.h"
#include "FLAC/assert.h"
#ifdef FLAC__CPU_IA32
#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
#else
#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
#endif
FLAC__SSE_TARGET("sse2")
unsigned FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
{
FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
unsigned i, order;
__m128i total_err0, total_err1, total_err2;
{
FLAC__int32 itmp;
__m128i last_error;
last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
itmp = data[-2];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
itmp -= data[-3];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
itmp -= data[-3] - data[-4];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
total_err0 = total_err1 = _mm_setzero_si128();
for(i = 0; i < data_len; i++) {
__m128i err0, err1, tmp;
err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
#if 1 /* OPT_SSE */
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#else
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#endif
tmp = _mm_slli_si128(err0, 12); // e0 0 0 0
last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3
last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3
tmp = _mm_srai_epi32(err0, 31);
err0 = _mm_xor_si128(err0, tmp);
err0 = _mm_sub_epi32(err0, tmp);
tmp = _mm_srai_epi32(err1, 31);
err1 = _mm_xor_si128(err1, tmp);
err1 = _mm_sub_epi32(err1, tmp);
total_err0 = _mm_add_epi32(total_err0, err0); // 0 0 0 te0
total_err1 = _mm_add_epi32(total_err1, err1); // te1 te2 te3 te4
}
}
total_error_0 = _mm_cvtsi128_si32(total_err0);
total_err2 = total_err1; // te1 te2 te3 te4
total_err1 = _mm_srli_si128(total_err1, 8); // 0 0 te1 te2
total_error_4 = _mm_cvtsi128_si32(total_err2);
total_error_2 = _mm_cvtsi128_si32(total_err1);
total_err2 = _mm_srli_si128(total_err2, 4); // 0 te1 te2 te3
total_err1 = _mm_srli_si128(total_err1, 4); // 0 0 0 te1
total_error_3 = _mm_cvtsi128_si32(total_err2);
total_error_1 = _mm_cvtsi128_si32(total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
return order;
}
FLAC__SSE_TARGET("sse2")
unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
{
FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
unsigned i, order;
__m128i total_err0, total_err1, total_err3;
{
FLAC__int32 itmp;
__m128i last_error, zero = _mm_setzero_si128();
last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
itmp = data[-2];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
itmp -= data[-3];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
itmp -= data[-3] - data[-4];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
for(i = 0; i < data_len; i++) {
__m128i err0, err1, tmp;
err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
#if 1 /* OPT_SSE */
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#else
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#endif
tmp = _mm_slli_si128(err0, 12); // e0 0 0 0
last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3
last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3
tmp = _mm_srai_epi32(err0, 31);
err0 = _mm_xor_si128(err0, tmp);
err0 = _mm_sub_epi32(err0, tmp);
tmp = _mm_srai_epi32(err1, 31);
err1 = _mm_xor_si128(err1, tmp);
err1 = _mm_sub_epi32(err1, tmp);
total_err0 = _mm_add_epi64(total_err0, err0); // 0 te0
err0 = _mm_unpacklo_epi32(err1, zero); // 0 |e3| 0 |e4|
err1 = _mm_unpackhi_epi32(err1, zero); // 0 |e1| 0 |e2|
total_err3 = _mm_add_epi64(total_err3, err0); // te3 te4
total_err1 = _mm_add_epi64(total_err1, err1); // te1 te2
}
}
m128i_to_i64(total_error_0, total_err0);
m128i_to_i64(total_error_4, total_err3);
m128i_to_i64(total_error_2, total_err1);
total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
m128i_to_i64(total_error_3, total_err3);
m128i_to_i64(total_error_1, total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
return order;
}
#endif /* FLAC__SSE2_SUPPORTED */
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
#endif /* FLAC__NO_ASM */
#endif /* FLAC__INTEGER_ONLY_LIBRARY */

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/cpu.h"
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#ifndef FLAC__NO_ASM
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
#include "private/fixed.h"
#ifdef FLAC__SSSE3_SUPPORTED
#include <tmmintrin.h> /* SSSE3 */
#include <math.h>
#include "private/macros.h"
#include "share/compat.h"
#include "FLAC/assert.h"
#ifdef FLAC__CPU_IA32
#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
#else
#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
#endif
FLAC__SSE_TARGET("ssse3")
unsigned FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
{
FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
unsigned i, order;
__m128i total_err0, total_err1, total_err2;
{
FLAC__int32 itmp;
__m128i last_error;
last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
itmp = data[-2];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
itmp -= data[-3];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
itmp -= data[-3] - data[-4];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
total_err0 = total_err1 = _mm_setzero_si128();
for(i = 0; i < data_len; i++) {
__m128i err0, err1;
err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
#if 1 /* OPT_SSE */
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#else
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#endif
last_error = _mm_alignr_epi8(err0, err1, 4); // e0 e1 e2 e3
err0 = _mm_abs_epi32(err0);
err1 = _mm_abs_epi32(err1);
total_err0 = _mm_add_epi32(total_err0, err0); // 0 0 0 te0
total_err1 = _mm_add_epi32(total_err1, err1); // te1 te2 te3 te4
}
}
total_error_0 = _mm_cvtsi128_si32(total_err0);
total_err2 = total_err1; // te1 te2 te3 te4
total_err1 = _mm_srli_si128(total_err1, 8); // 0 0 te1 te2
total_error_4 = _mm_cvtsi128_si32(total_err2);
total_error_2 = _mm_cvtsi128_si32(total_err1);
total_err2 = _mm_srli_si128(total_err2, 4); // 0 te1 te2 te3
total_err1 = _mm_srli_si128(total_err1, 4); // 0 0 0 te1
total_error_3 = _mm_cvtsi128_si32(total_err2);
total_error_1 = _mm_cvtsi128_si32(total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
return order;
}
FLAC__SSE_TARGET("ssse3")
unsigned FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
{
FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
unsigned i, order;
__m128i total_err0, total_err1, total_err3;
{
FLAC__int32 itmp;
__m128i last_error, zero = _mm_setzero_si128();
last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
itmp = data[-2];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
itmp -= data[-3];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
itmp -= data[-3] - data[-4];
last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
for(i = 0; i < data_len; i++) {
__m128i err0, err1;
err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
#if 1 /* OPT_SSE */
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
err1 = _mm_sub_epi32(err1, last_error);
last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#else
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
#endif
last_error = _mm_alignr_epi8(err0, err1, 4); // e0 e1 e2 e3
err0 = _mm_abs_epi32(err0);
err1 = _mm_abs_epi32(err1); // |e1| |e2| |e3| |e4|
total_err0 = _mm_add_epi64(total_err0, err0); // 0 te0
err0 = _mm_unpacklo_epi32(err1, zero); // 0 |e3| 0 |e4|
err1 = _mm_unpackhi_epi32(err1, zero); // 0 |e1| 0 |e2|
total_err3 = _mm_add_epi64(total_err3, err0); // te3 te4
total_err1 = _mm_add_epi64(total_err1, err1); // te1 te2
}
}
m128i_to_i64(total_error_0, total_err0);
m128i_to_i64(total_error_4, total_err3);
m128i_to_i64(total_error_2, total_err1);
total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
m128i_to_i64(total_error_3, total_err3);
m128i_to_i64(total_error_1, total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
order = 0;
else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
order = 1;
else if(total_error_2 < flac_min(total_error_3, total_error_4))
order = 2;
else if(total_error_3 < total_error_4)
order = 3;
else
order = 4;
/* Estimate the expected number of bits per residual signal sample. */
/* 'total_error*' is linearly related to the variance of the residual */
/* signal, so we use it directly to compute E(|x|) */
FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
return order;
}
#endif /* FLAC__SSSE3_SUPPORTED */
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
#endif /* FLAC__NO_ASM */
#endif /* FLAC__INTEGER_ONLY_LIBRARY */

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2004-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "FLAC/assert.h"
#include "share/compat.h"
#include "private/float.h"
#ifdef FLAC__INTEGER_ONLY_LIBRARY
const FLAC__fixedpoint FLAC__FP_ZERO = 0;
const FLAC__fixedpoint FLAC__FP_ONE_HALF = 0x00008000;
const FLAC__fixedpoint FLAC__FP_ONE = 0x00010000;
const FLAC__fixedpoint FLAC__FP_LN2 = 45426;
const FLAC__fixedpoint FLAC__FP_E = 178145;
/* Lookup tables for Knuth's logarithm algorithm */
#define LOG2_LOOKUP_PRECISION 16
static const FLAC__uint32 log2_lookup[][LOG2_LOOKUP_PRECISION] = {
{
/*
* 0 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00000001,
/* lg(4/3) = */ 0x00000000,
/* lg(8/7) = */ 0x00000000,
/* lg(16/15) = */ 0x00000000,
/* lg(32/31) = */ 0x00000000,
/* lg(64/63) = */ 0x00000000,
/* lg(128/127) = */ 0x00000000,
/* lg(256/255) = */ 0x00000000,
/* lg(512/511) = */ 0x00000000,
/* lg(1024/1023) = */ 0x00000000,
/* lg(2048/2047) = */ 0x00000000,
/* lg(4096/4095) = */ 0x00000000,
/* lg(8192/8191) = */ 0x00000000,
/* lg(16384/16383) = */ 0x00000000,
/* lg(32768/32767) = */ 0x00000000
},
{
/*
* 4 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00000010,
/* lg(4/3) = */ 0x00000007,
/* lg(8/7) = */ 0x00000003,
/* lg(16/15) = */ 0x00000001,
/* lg(32/31) = */ 0x00000001,
/* lg(64/63) = */ 0x00000000,
/* lg(128/127) = */ 0x00000000,
/* lg(256/255) = */ 0x00000000,
/* lg(512/511) = */ 0x00000000,
/* lg(1024/1023) = */ 0x00000000,
/* lg(2048/2047) = */ 0x00000000,
/* lg(4096/4095) = */ 0x00000000,
/* lg(8192/8191) = */ 0x00000000,
/* lg(16384/16383) = */ 0x00000000,
/* lg(32768/32767) = */ 0x00000000
},
{
/*
* 8 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00000100,
/* lg(4/3) = */ 0x0000006a,
/* lg(8/7) = */ 0x00000031,
/* lg(16/15) = */ 0x00000018,
/* lg(32/31) = */ 0x0000000c,
/* lg(64/63) = */ 0x00000006,
/* lg(128/127) = */ 0x00000003,
/* lg(256/255) = */ 0x00000001,
/* lg(512/511) = */ 0x00000001,
/* lg(1024/1023) = */ 0x00000000,
/* lg(2048/2047) = */ 0x00000000,
/* lg(4096/4095) = */ 0x00000000,
/* lg(8192/8191) = */ 0x00000000,
/* lg(16384/16383) = */ 0x00000000,
/* lg(32768/32767) = */ 0x00000000
},
{
/*
* 12 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00001000,
/* lg(4/3) = */ 0x000006a4,
/* lg(8/7) = */ 0x00000315,
/* lg(16/15) = */ 0x0000017d,
/* lg(32/31) = */ 0x000000bc,
/* lg(64/63) = */ 0x0000005d,
/* lg(128/127) = */ 0x0000002e,
/* lg(256/255) = */ 0x00000017,
/* lg(512/511) = */ 0x0000000c,
/* lg(1024/1023) = */ 0x00000006,
/* lg(2048/2047) = */ 0x00000003,
/* lg(4096/4095) = */ 0x00000001,
/* lg(8192/8191) = */ 0x00000001,
/* lg(16384/16383) = */ 0x00000000,
/* lg(32768/32767) = */ 0x00000000
},
{
/*
* 16 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00010000,
/* lg(4/3) = */ 0x00006a40,
/* lg(8/7) = */ 0x00003151,
/* lg(16/15) = */ 0x000017d6,
/* lg(32/31) = */ 0x00000bba,
/* lg(64/63) = */ 0x000005d1,
/* lg(128/127) = */ 0x000002e6,
/* lg(256/255) = */ 0x00000172,
/* lg(512/511) = */ 0x000000b9,
/* lg(1024/1023) = */ 0x0000005c,
/* lg(2048/2047) = */ 0x0000002e,
/* lg(4096/4095) = */ 0x00000017,
/* lg(8192/8191) = */ 0x0000000c,
/* lg(16384/16383) = */ 0x00000006,
/* lg(32768/32767) = */ 0x00000003
},
{
/*
* 20 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x00100000,
/* lg(4/3) = */ 0x0006a3fe,
/* lg(8/7) = */ 0x00031513,
/* lg(16/15) = */ 0x00017d60,
/* lg(32/31) = */ 0x0000bb9d,
/* lg(64/63) = */ 0x00005d10,
/* lg(128/127) = */ 0x00002e59,
/* lg(256/255) = */ 0x00001721,
/* lg(512/511) = */ 0x00000b8e,
/* lg(1024/1023) = */ 0x000005c6,
/* lg(2048/2047) = */ 0x000002e3,
/* lg(4096/4095) = */ 0x00000171,
/* lg(8192/8191) = */ 0x000000b9,
/* lg(16384/16383) = */ 0x0000005c,
/* lg(32768/32767) = */ 0x0000002e
},
{
/*
* 24 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x01000000,
/* lg(4/3) = */ 0x006a3fe6,
/* lg(8/7) = */ 0x00315130,
/* lg(16/15) = */ 0x0017d605,
/* lg(32/31) = */ 0x000bb9ca,
/* lg(64/63) = */ 0x0005d0fc,
/* lg(128/127) = */ 0x0002e58f,
/* lg(256/255) = */ 0x0001720e,
/* lg(512/511) = */ 0x0000b8d8,
/* lg(1024/1023) = */ 0x00005c61,
/* lg(2048/2047) = */ 0x00002e2d,
/* lg(4096/4095) = */ 0x00001716,
/* lg(8192/8191) = */ 0x00000b8b,
/* lg(16384/16383) = */ 0x000005c5,
/* lg(32768/32767) = */ 0x000002e3
},
{
/*
* 28 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ 0x10000000,
/* lg(4/3) = */ 0x06a3fe5c,
/* lg(8/7) = */ 0x03151301,
/* lg(16/15) = */ 0x017d6049,
/* lg(32/31) = */ 0x00bb9ca6,
/* lg(64/63) = */ 0x005d0fba,
/* lg(128/127) = */ 0x002e58f7,
/* lg(256/255) = */ 0x001720da,
/* lg(512/511) = */ 0x000b8d87,
/* lg(1024/1023) = */ 0x0005c60b,
/* lg(2048/2047) = */ 0x0002e2d7,
/* lg(4096/4095) = */ 0x00017160,
/* lg(8192/8191) = */ 0x0000b8ad,
/* lg(16384/16383) = */ 0x00005c56,
/* lg(32768/32767) = */ 0x00002e2b
}
};
#if 0
static const FLAC__uint64 log2_lookup_wide[] = {
{
/*
* 32 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ FLAC__U64L(0x100000000),
/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c6),
/* lg(8/7) = */ FLAC__U64L(0x31513015),
/* lg(16/15) = */ FLAC__U64L(0x17d60497),
/* lg(32/31) = */ FLAC__U64L(0x0bb9ca65),
/* lg(64/63) = */ FLAC__U64L(0x05d0fba2),
/* lg(128/127) = */ FLAC__U64L(0x02e58f74),
/* lg(256/255) = */ FLAC__U64L(0x01720d9c),
/* lg(512/511) = */ FLAC__U64L(0x00b8d875),
/* lg(1024/1023) = */ FLAC__U64L(0x005c60aa),
/* lg(2048/2047) = */ FLAC__U64L(0x002e2d72),
/* lg(4096/4095) = */ FLAC__U64L(0x00171600),
/* lg(8192/8191) = */ FLAC__U64L(0x000b8ad2),
/* lg(16384/16383) = */ FLAC__U64L(0x0005c55d),
/* lg(32768/32767) = */ FLAC__U64L(0x0002e2ac)
},
{
/*
* 48 fraction bits
*/
/* undefined */ 0x00000000,
/* lg(2/1) = */ FLAC__U64L(0x1000000000000),
/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c60429),
/* lg(8/7) = */ FLAC__U64L(0x315130157f7a),
/* lg(16/15) = */ FLAC__U64L(0x17d60496cfbb),
/* lg(32/31) = */ FLAC__U64L(0xbb9ca64ecac),
/* lg(64/63) = */ FLAC__U64L(0x5d0fba187cd),
/* lg(128/127) = */ FLAC__U64L(0x2e58f7441ee),
/* lg(256/255) = */ FLAC__U64L(0x1720d9c06a8),
/* lg(512/511) = */ FLAC__U64L(0xb8d8752173),
/* lg(1024/1023) = */ FLAC__U64L(0x5c60aa252e),
/* lg(2048/2047) = */ FLAC__U64L(0x2e2d71b0d8),
/* lg(4096/4095) = */ FLAC__U64L(0x1716001719),
/* lg(8192/8191) = */ FLAC__U64L(0xb8ad1de1b),
/* lg(16384/16383) = */ FLAC__U64L(0x5c55d640d),
/* lg(32768/32767) = */ FLAC__U64L(0x2e2abcf52)
}
};
#endif
FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision)
{
const FLAC__uint32 ONE = (1u << fracbits);
const FLAC__uint32 *table = log2_lookup[fracbits >> 2];
FLAC__ASSERT(fracbits < 32);
FLAC__ASSERT((fracbits & 0x3) == 0);
if(x < ONE)
return 0;
if(precision > LOG2_LOOKUP_PRECISION)
precision = LOG2_LOOKUP_PRECISION;
/* Knuth's algorithm for computing logarithms, optimized for base-2 with lookup tables */
{
FLAC__uint32 y = 0;
FLAC__uint32 z = x >> 1, k = 1;
while (x > ONE && k < precision) {
if (x - z >= ONE) {
x -= z;
z = x >> k;
y += table[k];
}
else {
z >>= 1;
k++;
}
}
return y;
}
}
#endif /* defined FLAC__INTEGER_ONLY_LIBRARY */

589
core/deps/flac/src/libFLAC/format.c Normal file
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@ -0,0 +1,589 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h> /* for qsort() */
#include <string.h> /* for memset() */
#include "FLAC/assert.h"
#include "FLAC/format.h"
#include "share/alloc.h"
#include "share/compat.h"
#include "private/format.h"
#include "private/macros.h"
/* PACKAGE_VERSION should come from configure */
FLAC_API const char *FLAC__VERSION_STRING = PACKAGE_VERSION;
FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20170101";
FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
FLAC_API const unsigned FLAC__STREAM_SYNC = 0x664C6143;
FLAC_API const unsigned FLAC__STREAM_SYNC_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER = FLAC__U64L(0xffffffffffffffff);
FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN = 64; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN = 8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN = 3*8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN = 64; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN = 8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN = 12*8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN = 1; /* bit */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; /* bit */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN = 6+13*8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN = 8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN = 128*8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN = 64; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN = 1; /* bit */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN = 7+258*8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN = 8; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_TYPE_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_COLORS_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN = 32; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */
FLAC_API const unsigned FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC = 0x3ffe;
FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_RESERVED_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */
FLAC_API const unsigned FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN = 5; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN = 5; /* bits */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER = 15; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER = 31; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[] = {
"PARTITIONED_RICE",
"PARTITIONED_RICE2"
};
FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */
FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */
FLAC_API const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */
FLAC_API const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */
FLAC_API const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00;
FLAC_API const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02;
FLAC_API const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10;
FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40;
FLAC_API const char * const FLAC__SubframeTypeString[] = {
"CONSTANT",
"VERBATIM",
"FIXED",
"LPC"
};
FLAC_API const char * const FLAC__ChannelAssignmentString[] = {
"INDEPENDENT",
"LEFT_SIDE",
"RIGHT_SIDE",
"MID_SIDE"
};
FLAC_API const char * const FLAC__FrameNumberTypeString[] = {
"FRAME_NUMBER_TYPE_FRAME_NUMBER",
"FRAME_NUMBER_TYPE_SAMPLE_NUMBER"
};
FLAC_API const char * const FLAC__MetadataTypeString[] = {
"STREAMINFO",
"PADDING",
"APPLICATION",
"SEEKTABLE",
"VORBIS_COMMENT",
"CUESHEET",
"PICTURE"
};
FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[] = {
"Other",
"32x32 pixels 'file icon' (PNG only)",
"Other file icon",
"Cover (front)",
"Cover (back)",
"Leaflet page",
"Media (e.g. label side of CD)",
"Lead artist/lead performer/soloist",
"Artist/performer",
"Conductor",
"Band/Orchestra",
"Composer",
"Lyricist/text writer",
"Recording Location",
"During recording",
"During performance",
"Movie/video screen capture",
"A bright coloured fish",
"Illustration",
"Band/artist logotype",
"Publisher/Studio logotype"
};
FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate)
{
if(sample_rate == 0 || sample_rate > FLAC__MAX_SAMPLE_RATE) {
return false;
}
else
return true;
}
FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(unsigned blocksize, unsigned sample_rate)
{
if(blocksize > 16384)
return false;
else if(sample_rate <= 48000 && blocksize > 4608)
return false;
else
return true;
}
FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate)
{
if(
!FLAC__format_sample_rate_is_valid(sample_rate) ||
(
sample_rate >= (1u << 16) &&
!(sample_rate % 1000 == 0 || sample_rate % 10 == 0)
)
) {
return false;
}
else
return true;
}
/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table)
{
unsigned i;
FLAC__uint64 prev_sample_number = 0;
FLAC__bool got_prev = false;
FLAC__ASSERT(0 != seek_table);
for(i = 0; i < seek_table->num_points; i++) {
if(got_prev) {
if(
seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
seek_table->points[i].sample_number <= prev_sample_number
)
return false;
}
prev_sample_number = seek_table->points[i].sample_number;
got_prev = true;
}
return true;
}
/* used as the sort predicate for qsort() */
static int seekpoint_compare_(const FLAC__StreamMetadata_SeekPoint *l, const FLAC__StreamMetadata_SeekPoint *r)
{
/* we don't just 'return l->sample_number - r->sample_number' since the result (FLAC__int64) might overflow an 'int' */
if(l->sample_number == r->sample_number)
return 0;
else if(l->sample_number < r->sample_number)
return -1;
else
return 1;
}
/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
FLAC_API unsigned FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table)
{
unsigned i, j;
FLAC__bool first;
FLAC__ASSERT(0 != seek_table);
if (seek_table->num_points == 0)
return 0;
/* sort the seekpoints */
qsort(seek_table->points, seek_table->num_points, sizeof(FLAC__StreamMetadata_SeekPoint), (int (*)(const void *, const void *))seekpoint_compare_);
/* uniquify the seekpoints */
first = true;
for(i = j = 0; i < seek_table->num_points; i++) {
if(seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
if(!first) {
if(seek_table->points[i].sample_number == seek_table->points[j-1].sample_number)
continue;
}
}
first = false;
seek_table->points[j++] = seek_table->points[i];
}
for(i = j; i < seek_table->num_points; i++) {
seek_table->points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
seek_table->points[i].stream_offset = 0;
seek_table->points[i].frame_samples = 0;
}
return j;
}
/*
* also disallows non-shortest-form encodings, c.f.
* http://www.unicode.org/versions/corrigendum1.html
* and a more clear explanation at the end of this section:
* http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
*/
static unsigned utf8len_(const FLAC__byte *utf8)
{
FLAC__ASSERT(0 != utf8);
if ((utf8[0] & 0x80) == 0) {
return 1;
}
else if ((utf8[0] & 0xE0) == 0xC0 && (utf8[1] & 0xC0) == 0x80) {
if ((utf8[0] & 0xFE) == 0xC0) /* overlong sequence check */
return 0;
return 2;
}
else if ((utf8[0] & 0xF0) == 0xE0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80) {
if (utf8[0] == 0xE0 && (utf8[1] & 0xE0) == 0x80) /* overlong sequence check */
return 0;
/* illegal surrogates check (U+D800...U+DFFF and U+FFFE...U+FFFF) */
if (utf8[0] == 0xED && (utf8[1] & 0xE0) == 0xA0) /* D800-DFFF */
return 0;
if (utf8[0] == 0xEF && utf8[1] == 0xBF && (utf8[2] & 0xFE) == 0xBE) /* FFFE-FFFF */
return 0;
return 3;
}
else if ((utf8[0] & 0xF8) == 0xF0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80) {
if (utf8[0] == 0xF0 && (utf8[1] & 0xF0) == 0x80) /* overlong sequence check */
return 0;
return 4;
}
else if ((utf8[0] & 0xFC) == 0xF8 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80) {
if (utf8[0] == 0xF8 && (utf8[1] & 0xF8) == 0x80) /* overlong sequence check */
return 0;
return 5;
}
else if ((utf8[0] & 0xFE) == 0xFC && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80 && (utf8[5] & 0xC0) == 0x80) {
if (utf8[0] == 0xFC && (utf8[1] & 0xFC) == 0x80) /* overlong sequence check */
return 0;
return 6;
}
else {
return 0;
}
}
FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name)
{
char c;
for(c = *name; c; c = *(++name))
if(c < 0x20 || c == 0x3d || c > 0x7d)
return false;
return true;
}
FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, unsigned length)
{
if(length == (unsigned)(-1)) {
while(*value) {
unsigned n = utf8len_(value);
if(n == 0)
return false;
value += n;
}
}
else {
const FLAC__byte *end = value + length;
while(value < end) {
unsigned n = utf8len_(value);
if(n == 0)
return false;
value += n;
}
if(value != end)
return false;
}
return true;
}
FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, unsigned length)
{
const FLAC__byte *s, *end;
for(s = entry, end = s + length; s < end && *s != '='; s++) {
if(*s < 0x20 || *s > 0x7D)
return false;
}
if(s == end)
return false;
s++; /* skip '=' */
while(s < end) {
unsigned n = utf8len_(s);
if(n == 0)
return false;
s += n;
}
if(s != end)
return false;
return true;
}
/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation)
{
unsigned i, j;
if(check_cd_da_subset) {
if(cue_sheet->lead_in < 2 * 44100) {
if(violation) *violation = "CD-DA cue sheet must have a lead-in length of at least 2 seconds";
return false;
}
if(cue_sheet->lead_in % 588 != 0) {
if(violation) *violation = "CD-DA cue sheet lead-in length must be evenly divisible by 588 samples";
return false;
}
}
if(cue_sheet->num_tracks == 0) {
if(violation) *violation = "cue sheet must have at least one track (the lead-out)";
return false;
}
if(check_cd_da_subset && cue_sheet->tracks[cue_sheet->num_tracks-1].number != 170) {
if(violation) *violation = "CD-DA cue sheet must have a lead-out track number 170 (0xAA)";
return false;
}
for(i = 0; i < cue_sheet->num_tracks; i++) {
if(cue_sheet->tracks[i].number == 0) {
if(violation) *violation = "cue sheet may not have a track number 0";
return false;
}
if(check_cd_da_subset) {
if(!((cue_sheet->tracks[i].number >= 1 && cue_sheet->tracks[i].number <= 99) || cue_sheet->tracks[i].number == 170)) {
if(violation) *violation = "CD-DA cue sheet track number must be 1-99 or 170";
return false;
}
}
if(check_cd_da_subset && cue_sheet->tracks[i].offset % 588 != 0) {
if(violation) {
if(i == cue_sheet->num_tracks-1) /* the lead-out track... */
*violation = "CD-DA cue sheet lead-out offset must be evenly divisible by 588 samples";
else
*violation = "CD-DA cue sheet track offset must be evenly divisible by 588 samples";
}
return false;
}
if(i < cue_sheet->num_tracks - 1) {
if(cue_sheet->tracks[i].num_indices == 0) {
if(violation) *violation = "cue sheet track must have at least one index point";
return false;
}
if(cue_sheet->tracks[i].indices[0].number > 1) {
if(violation) *violation = "cue sheet track's first index number must be 0 or 1";
return false;
}
}
for(j = 0; j < cue_sheet->tracks[i].num_indices; j++) {
if(check_cd_da_subset && cue_sheet->tracks[i].indices[j].offset % 588 != 0) {
if(violation) *violation = "CD-DA cue sheet track index offset must be evenly divisible by 588 samples";
return false;
}
if(j > 0) {
if(cue_sheet->tracks[i].indices[j].number != cue_sheet->tracks[i].indices[j-1].number + 1) {
if(violation) *violation = "cue sheet track index numbers must increase by 1";
return false;
}
}
}
}
return true;
}
/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation)
{
char *p;
FLAC__byte *b;
for(p = picture->mime_type; *p; p++) {
if(*p < 0x20 || *p > 0x7e) {
if(violation) *violation = "MIME type string must contain only printable ASCII characters (0x20-0x7e)";
return false;
}
}
for(b = picture->description; *b; ) {
unsigned n = utf8len_(b);
if(n == 0) {
if(violation) *violation = "description string must be valid UTF-8";
return false;
}
b += n;
}
return true;
}
/*
* These routines are private to libFLAC
*/
unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order)
{
return
FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(
FLAC__format_get_max_rice_partition_order_from_blocksize(blocksize),
blocksize,
predictor_order
);
}
unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize)
{
unsigned max_rice_partition_order = 0;
while(!(blocksize & 1)) {
max_rice_partition_order++;
blocksize >>= 1;
}
return flac_min(FLAC__MAX_RICE_PARTITION_ORDER, max_rice_partition_order);
}
unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order)
{
unsigned max_rice_partition_order = limit;
while(max_rice_partition_order > 0 && (blocksize >> max_rice_partition_order) <= predictor_order)
max_rice_partition_order--;
FLAC__ASSERT(
(max_rice_partition_order == 0 && blocksize >= predictor_order) ||
(max_rice_partition_order > 0 && blocksize >> max_rice_partition_order > predictor_order)
);
return max_rice_partition_order;
}
void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
{
FLAC__ASSERT(0 != object);
object->parameters = 0;
object->raw_bits = 0;
object->capacity_by_order = 0;
}
void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
{
FLAC__ASSERT(0 != object);
if(0 != object->parameters)
free(object->parameters);
if(0 != object->raw_bits)
free(object->raw_bits);
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(object);
}
FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order)
{
FLAC__ASSERT(0 != object);
FLAC__ASSERT(object->capacity_by_order > 0 || (0 == object->parameters && 0 == object->raw_bits));
if(object->capacity_by_order < max_partition_order) {
if(0 == (object->parameters = safe_realloc_(object->parameters, sizeof(unsigned)*(1 << max_partition_order))))
return false;
if(0 == (object->raw_bits = safe_realloc_(object->raw_bits, sizeof(unsigned)*(1 << max_partition_order))))
return false;
memset(object->raw_bits, 0, sizeof(unsigned)*(1 << max_partition_order));
object->capacity_by_order = max_partition_order;
}
return true;
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__BITMATH_H
#define FLAC__PRIVATE__BITMATH_H
#include "FLAC/ordinals.h"
#include "FLAC/assert.h"
#include "share/compat.h"
#if defined(_MSC_VER)
#include <intrin.h> /* for _BitScanReverse* */
#endif
/* Will never be emitted for MSVC, GCC, Intel compilers */
static inline unsigned int FLAC__clz_soft_uint32(FLAC__uint32 word)
{
static const unsigned char byte_to_unary_table[] = {
8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
return word > 0xffffff ? byte_to_unary_table[word >> 24] :
word > 0xffff ? byte_to_unary_table[word >> 16] + 8 :
word > 0xff ? byte_to_unary_table[word >> 8] + 16 :
byte_to_unary_table[word] + 24;
}
static inline unsigned int FLAC__clz_uint32(FLAC__uint32 v)
{
/* Never used with input 0 */
FLAC__ASSERT(v > 0);
#if defined(__INTEL_COMPILER)
return _bit_scan_reverse(v) ^ 31U;
#elif defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
/* This will translate either to (bsr ^ 31U), clz , ctlz, cntlz, lzcnt depending on
* -march= setting or to a software routine in exotic machines. */
return __builtin_clz(v);
#elif defined(_MSC_VER)
{
unsigned long idx;
_BitScanReverse(&idx, v);
return idx ^ 31U;
}
#else
return FLAC__clz_soft_uint32(v);
#endif
}
/* Used when 64-bit bsr/clz is unavailable; can use 32-bit bsr/clz when possible */
static inline unsigned int FLAC__clz_soft_uint64(FLAC__uint64 word)
{
return (FLAC__uint32)(word>>32) ? FLAC__clz_uint32((FLAC__uint32)(word>>32)) :
FLAC__clz_uint32((FLAC__uint32)word) + 32;
}
static inline unsigned int FLAC__clz_uint64(FLAC__uint64 v)
{
/* Never used with input 0 */
FLAC__ASSERT(v > 0);
#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
return __builtin_clzll(v);
#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
{
unsigned long idx;
_BitScanReverse64(&idx, v);
return idx ^ 63U;
}
#else
return FLAC__clz_soft_uint64(v);
#endif
}
/* These two functions work with input 0 */
static inline unsigned int FLAC__clz2_uint32(FLAC__uint32 v)
{
if (!v)
return 32;
return FLAC__clz_uint32(v);
}
static inline unsigned int FLAC__clz2_uint64(FLAC__uint64 v)
{
if (!v)
return 64;
return FLAC__clz_uint64(v);
}
/* An example of what FLAC__bitmath_ilog2() computes:
*
* ilog2( 0) = assertion failure
* ilog2( 1) = 0
* ilog2( 2) = 1
* ilog2( 3) = 1
* ilog2( 4) = 2
* ilog2( 5) = 2
* ilog2( 6) = 2
* ilog2( 7) = 2
* ilog2( 8) = 3
* ilog2( 9) = 3
* ilog2(10) = 3
* ilog2(11) = 3
* ilog2(12) = 3
* ilog2(13) = 3
* ilog2(14) = 3
* ilog2(15) = 3
* ilog2(16) = 4
* ilog2(17) = 4
* ilog2(18) = 4
*/
static inline unsigned FLAC__bitmath_ilog2(FLAC__uint32 v)
{
FLAC__ASSERT(v > 0);
#if defined(__INTEL_COMPILER)
return _bit_scan_reverse(v);
#elif defined(_MSC_VER)
{
unsigned long idx;
_BitScanReverse(&idx, v);
return idx;
}
#else
return FLAC__clz_uint32(v) ^ 31U;
#endif
}
static inline unsigned FLAC__bitmath_ilog2_wide(FLAC__uint64 v)
{
FLAC__ASSERT(v > 0);
#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
return __builtin_clzll(v) ^ 63U;
/* Sorry, only supported in x64/Itanium.. and both have fast FPU which makes integer-only encoder pointless */
#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
{
unsigned long idx;
_BitScanReverse64(&idx, v);
return idx;
}
#else
/* Brain-damaged compilers will use the fastest possible way that is,
de Bruijn sequences (http://supertech.csail.mit.edu/papers/debruijn.pdf)
(C) Timothy B. Terriberry (tterribe@xiph.org) 2001-2009 CC0 (Public domain).
*/
{
static const unsigned char DEBRUIJN_IDX64[64]={
0, 1, 2, 7, 3,13, 8,19, 4,25,14,28, 9,34,20,40,
5,17,26,38,15,46,29,48,10,31,35,54,21,50,41,57,
63, 6,12,18,24,27,33,39,16,37,45,47,30,53,49,56,
62,11,23,32,36,44,52,55,61,22,43,51,60,42,59,58
};
v|= v>>1;
v|= v>>2;
v|= v>>4;
v|= v>>8;
v|= v>>16;
v|= v>>32;
v= (v>>1)+1;
return DEBRUIJN_IDX64[v*FLAC__U64L(0x218A392CD3D5DBF)>>58&0x3F];
}
#endif
}
unsigned FLAC__bitmath_silog2(FLAC__int64 v);
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__CPU_H
#define FLAC__PRIVATE__CPU_H
#include "FLAC/ordinals.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifndef FLAC__CPU_X86_64
#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
#define FLAC__CPU_X86_64
#endif
#endif
#ifndef FLAC__CPU_IA32
#if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)
#define FLAC__CPU_IA32
#endif
#endif
#if FLAC__HAS_X86INTRIN
/* SSE intrinsics support by ICC/MSVC/GCC */
#if defined __INTEL_COMPILER
#define FLAC__SSE_TARGET(x)
#define FLAC__SSE_SUPPORTED 1
#define FLAC__SSE2_SUPPORTED 1
#if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
#define FLAC__SSSE3_SUPPORTED 1
#define FLAC__SSE4_1_SUPPORTED 1
#endif
#if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
#define FLAC__AVX_SUPPORTED 1
#endif
#if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#endif
#elif defined _MSC_VER
#define FLAC__SSE_TARGET(x)
#define FLAC__SSE_SUPPORTED 1
#define FLAC__SSE2_SUPPORTED 1
#if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
#define FLAC__SSSE3_SUPPORTED 1
#define FLAC__SSE4_1_SUPPORTED 1
#endif
#if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
#define FLAC__AVX_SUPPORTED 1
#endif
#if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#endif
#elif defined __GNUC__
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* since GCC 4.9 -msse.. compiler options aren't necessary */
#define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
#define FLAC__SSE_SUPPORTED 1
#define FLAC__SSE2_SUPPORTED 1
#define FLAC__SSSE3_SUPPORTED 1
#define FLAC__SSE4_1_SUPPORTED 1
#ifdef FLAC__USE_AVX
#define FLAC__AVX_SUPPORTED 1
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#endif
#else /* for GCC older than 4.9 */
#define FLAC__SSE_TARGET(x)
#ifdef __SSE__
#define FLAC__SSE_SUPPORTED 1
#endif
#ifdef __SSE2__
#define FLAC__SSE2_SUPPORTED 1
#endif
#ifdef __SSSE3__
#define FLAC__SSSE3_SUPPORTED 1
#endif
#ifdef __SSE4_1__
#define FLAC__SSE4_1_SUPPORTED 1
#endif
#ifdef __AVX__
#define FLAC__AVX_SUPPORTED 1
#endif
#ifdef __AVX2__
#define FLAC__AVX2_SUPPORTED 1
#endif
#ifdef __FMA__
#define FLAC__FMA_SUPPORTED 1
#endif
#endif /* GCC version */
#endif /* compiler version */
#endif /* intrinsics support */
#ifndef FLAC__AVX_SUPPORTED
#define FLAC__AVX_SUPPORTED 0
#endif
typedef enum {
FLAC__CPUINFO_TYPE_IA32,
FLAC__CPUINFO_TYPE_X86_64,
FLAC__CPUINFO_TYPE_UNKNOWN
} FLAC__CPUInfo_Type;
typedef struct {
FLAC__bool intel;
FLAC__bool cmov;
FLAC__bool mmx;
FLAC__bool sse;
FLAC__bool sse2;
FLAC__bool sse3;
FLAC__bool ssse3;
FLAC__bool sse41;
FLAC__bool sse42;
FLAC__bool avx;
FLAC__bool avx2;
FLAC__bool fma;
} FLAC__CPUInfo_IA32;
typedef struct {
FLAC__bool intel;
FLAC__bool sse3;
FLAC__bool ssse3;
FLAC__bool sse41;
FLAC__bool sse42;
FLAC__bool avx;
FLAC__bool avx2;
FLAC__bool fma;
} FLAC__CPUInfo_x86;
typedef struct {
FLAC__bool use_asm;
FLAC__CPUInfo_Type type;
FLAC__CPUInfo_IA32 ia32;
FLAC__CPUInfo_x86 x86;
} FLAC__CPUInfo;
void FLAC__cpu_info(FLAC__CPUInfo *info);
FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
void FLAC__cpu_info_asm_ia32(FLAC__uint32 *flags_edx, FLAC__uint32 *flags_ecx);
void FLAC__cpu_info_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__CRC_H
#define FLAC__PRIVATE__CRC_H
#include "FLAC/ordinals.h"
/* 8 bit CRC generator, MSB shifted first
** polynomial = x^8 + x^2 + x^1 + x^0
** init = 0
*/
extern FLAC__byte const FLAC__crc8_table[256];
#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)];
void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc);
void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc);
FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len);
/* 16 bit CRC generator, MSB shifted first
** polynomial = x^16 + x^15 + x^2 + x^0
** init = 0
*/
extern unsigned const FLAC__crc16_table[256];
#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)])
/* this alternate may be faster on some systems/compilers */
#if 0
#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff)
#endif
unsigned FLAC__crc16(const FLAC__byte *data, unsigned len);
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__FIXED_H
#define FLAC__PRIVATE__FIXED_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "private/cpu.h"
#include "private/float.h"
#include "FLAC/format.h"
/*
* FLAC__fixed_compute_best_predictor()
* --------------------------------------------------------------------
* Compute the best fixed predictor and the expected bits-per-sample
* of the residual signal for each order. The _wide() version uses
* 64-bit integers which is statistically necessary when bits-per-
* sample + log2(blocksize) > 30
*
* IN data[0,data_len-1]
* IN data_len
* OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
*/
#ifndef FLAC__INTEGER_ONLY_LIBRARY
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
# ifndef FLAC__NO_ASM
# if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
# ifdef FLAC__SSE2_SUPPORTED
unsigned FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
# endif
# ifdef FLAC__SSSE3_SUPPORTED
unsigned FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
unsigned FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
# endif
# endif
# if defined FLAC__CPU_IA32 && defined FLAC__HAS_NASM
unsigned FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
# endif
# endif
#else
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
#endif
/*
* FLAC__fixed_compute_residual()
* --------------------------------------------------------------------
* Compute the residual signal obtained from sutracting the predicted
* signal from the original.
*
* IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
* IN data_len length of original signal
* IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
* OUT residual[0,data_len-1] residual signal
*/
void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]);
/*
* FLAC__fixed_restore_signal()
* --------------------------------------------------------------------
* Restore the original signal by summing the residual and the
* predictor.
*
* IN residual[0,data_len-1] residual signal
* IN data_len length of original signal
* IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
* *** IMPORTANT: the caller must pass in the historical samples:
* IN data[-order,-1] previously-reconstructed historical samples
* OUT data[0,data_len-1] original signal
*/
void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[]);
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2004-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__FLOAT_H
#define FLAC__PRIVATE__FLOAT_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "FLAC/ordinals.h"
/*
* All the code in libFLAC that uses float and double
* should be protected by checks of the macro
* FLAC__INTEGER_ONLY_LIBRARY.
*
*/
#ifndef FLAC__INTEGER_ONLY_LIBRARY
/*
* FLAC__real is the basic floating point type used in LPC analysis.
*
* WATCHOUT: changing FLAC__real will change the signatures of many
* functions that have assembly language equivalents and break them.
*/
typedef float FLAC__real;
#else
/*
* The convention for FLAC__fixedpoint is to use the upper 16 bits
* for the integer part and lower 16 bits for the fractional part.
*/
typedef FLAC__int32 FLAC__fixedpoint;
extern const FLAC__fixedpoint FLAC__FP_ZERO;
extern const FLAC__fixedpoint FLAC__FP_ONE_HALF;
extern const FLAC__fixedpoint FLAC__FP_ONE;
extern const FLAC__fixedpoint FLAC__FP_LN2;
extern const FLAC__fixedpoint FLAC__FP_E;
#define FLAC__fixedpoint_trunc(x) ((x)>>16)
#define FLAC__fixedpoint_mul(x, y) ( (FLAC__fixedpoint) ( ((FLAC__int64)(x)*(FLAC__int64)(y)) >> 16 ) )
#define FLAC__fixedpoint_div(x, y) ( (FLAC__fixedpoint) ( ( ((FLAC__int64)(x)<<32) / (FLAC__int64)(y) ) >> 16 ) )
/*
* FLAC__fixedpoint_log2()
* --------------------------------------------------------------------
* Returns the base-2 logarithm of the fixed-point number 'x' using an
* algorithm by Knuth for x >= 1.0
*
* 'fracbits' is the number of fractional bits of 'x'. 'fracbits' must
* be < 32 and evenly divisible by 4 (0 is OK but not very precise).
*
* 'precision' roughly limits the number of iterations that are done;
* use (unsigned)(-1) for maximum precision.
*
* If 'x' is less than one -- that is, x < (1<<fracbits) -- then this
* function will punt and return 0.
*
* The return value will also have 'fracbits' fractional bits.
*/
FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision);
#endif
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__FORMAT_H
#define FLAC__PRIVATE__FORMAT_H
#include "FLAC/format.h"
unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order);
unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize);
unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order);
void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order);
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2012-2016 Xiph.org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__MACROS_H
#define FLAC__PRIVATE__MACROS_H
#if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
#define flac_max(a,b) \
({ __typeof__ (a) _a = (a); \
__typeof__ (b) _b = (b); \
_a > _b ? _a : _b; })
#define MIN_PASTE(A,B) A##B
#define MIN_IMPL(A,B,L) ({ \
__typeof__(A) MIN_PASTE(__a,L) = (A); \
__typeof__(B) MIN_PASTE(__b,L) = (B); \
MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
})
#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
/* Whatever other unix that has sys/param.h */
#elif defined(HAVE_SYS_PARAM_H)
#include <sys/param.h>
#define flac_max(a,b) MAX(a,b)
#define flac_min(a,b) MIN(a,b)
/* Windows VS has them in stdlib.h.. XXX:Untested */
#elif defined(_MSC_VER)
#include <stdlib.h>
#define flac_max(a,b) __max(a,b)
#define flac_min(a,b) __min(a,b)
#endif
#ifndef MIN
#define MIN(x,y) ((x) <= (y) ? (x) : (y))
#endif
#ifndef MAX
#define MAX(x,y) ((x) >= (y) ? (x) : (y))
#endif
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "private/cpu.h"
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#ifndef FLAC__NO_ASM
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
#include "private/lpc.h"
#ifdef FLAC__SSE_SUPPORTED
#include "FLAC/assert.h"
#include "FLAC/format.h"
#include <xmmintrin.h> /* SSE */
/* new routines: more unaligned loads, less shuffle
* old routines: less unaligned loads, more shuffle
* these *_old routines are equivalent to the ASM routines in ia32/lpc_asm.nasm
*/
/* new routines: faster on current Intel (starting from Core i aka Nehalem) and all AMD CPUs */
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
int i;
int limit = data_len - 4;
__m128 sum0;
(void) lag;
FLAC__ASSERT(lag <= 4);
FLAC__ASSERT(lag <= data_len);
sum0 = _mm_setzero_ps();
for(i = 0; i <= limit; i++) {
__m128 d, d0;
d0 = _mm_loadu_ps(data+i);
d = d0; d = _mm_shuffle_ps(d, d, 0);
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
}
{
__m128 d0 = _mm_setzero_ps();
limit++; if(limit < 0) limit = 0;
for(i = data_len-1; i >= limit; i--) {
__m128 d;
d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
d0 = _mm_move_ss(d0, d);
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
}
}
_mm_storeu_ps(autoc, sum0);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
int i;
int limit = data_len - 8;
__m128 sum0, sum1;
(void) lag;
FLAC__ASSERT(lag <= 8);
FLAC__ASSERT(lag <= data_len);
sum0 = _mm_setzero_ps();
sum1 = _mm_setzero_ps();
for(i = 0; i <= limit; i++) {
__m128 d, d0, d1;
d0 = _mm_loadu_ps(data+i);
d1 = _mm_loadu_ps(data+i+4);
d = d0; d = _mm_shuffle_ps(d, d, 0);
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
}
{
__m128 d0 = _mm_setzero_ps();
__m128 d1 = _mm_setzero_ps();
limit++; if(limit < 0) limit = 0;
for(i = data_len-1; i >= limit; i--) {
__m128 d;
d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
d1 = _mm_move_ss(d1, d0);
d0 = _mm_move_ss(d0, d);
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
}
}
_mm_storeu_ps(autoc, sum0);
_mm_storeu_ps(autoc+4, sum1);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
int i;
int limit = data_len - 12;
__m128 sum0, sum1, sum2;
(void) lag;
FLAC__ASSERT(lag <= 12);
FLAC__ASSERT(lag <= data_len);
sum0 = _mm_setzero_ps();
sum1 = _mm_setzero_ps();
sum2 = _mm_setzero_ps();
for(i = 0; i <= limit; i++) {
__m128 d, d0, d1, d2;
d0 = _mm_loadu_ps(data+i);
d1 = _mm_loadu_ps(data+i+4);
d2 = _mm_loadu_ps(data+i+8);
d = d0; d = _mm_shuffle_ps(d, d, 0);
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
}
{
__m128 d0 = _mm_setzero_ps();
__m128 d1 = _mm_setzero_ps();
__m128 d2 = _mm_setzero_ps();
limit++; if(limit < 0) limit = 0;
for(i = data_len-1; i >= limit; i--) {
__m128 d;
d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
d2 = _mm_move_ss(d2, d1);
d1 = _mm_move_ss(d1, d0);
d0 = _mm_move_ss(d0, d);
sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
}
}
_mm_storeu_ps(autoc, sum0);
_mm_storeu_ps(autoc+4, sum1);
_mm_storeu_ps(autoc+8, sum2);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
int i;
int limit = data_len - 16;
__m128 sum0, sum1, sum2, sum3;
(void) lag;
FLAC__ASSERT(lag <= 16);
FLAC__ASSERT(lag <= data_len);
sum0 = _mm_setzero_ps();
sum1 = _mm_setzero_ps();
sum2 = _mm_setzero_ps();
sum3 = _mm_setzero_ps();
for(i = 0; i <= limit; i++) {
__m128 d, d0, d1, d2, d3;
d0 = _mm_loadu_ps(data+i);
d1 = _mm_loadu_ps(data+i+4);
d2 = _mm_loadu_ps(data+i+8);
d3 = _mm_loadu_ps(data+i+12);
d = d0; d = _mm_shuffle_ps(d, d, 0);
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
sum3 = _mm_add_ps(sum3, _mm_mul_ps(d3, d));
}
{
__m128 d0 = _mm_setzero_ps();
__m128 d1 = _mm_setzero_ps();
__m128 d2 = _mm_setzero_ps();
__m128 d3 = _mm_setzero_ps();
limit++; if(limit < 0) limit = 0;
for(i = data_len-1; i >= limit; i--) {
__m128 d;
d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
d3 = _mm_shuffle_ps(d3, d3, _MM_SHUFFLE(2,1,0,3));
d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
d3 = _mm_move_ss(d3, d2);
d2 = _mm_move_ss(d2, d1);
d1 = _mm_move_ss(d1, d0);
d0 = _mm_move_ss(d0, d);
sum3 = _mm_add_ps(sum3, _mm_mul_ps(d, d3));
sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
}
}
_mm_storeu_ps(autoc, sum0);
_mm_storeu_ps(autoc+4, sum1);
_mm_storeu_ps(autoc+8, sum2);
_mm_storeu_ps(autoc+12,sum3);
}
/* old routines: faster on older Intel CPUs (up to Core 2) */
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
__m128 xmm0, xmm2, xmm5;
(void) lag;
FLAC__ASSERT(lag > 0);
FLAC__ASSERT(lag <= 4);
FLAC__ASSERT(lag <= data_len);
FLAC__ASSERT(data_len > 0);
xmm5 = _mm_setzero_ps();
xmm0 = _mm_load_ss(data++);
xmm2 = xmm0;
xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm5 = _mm_add_ps(xmm5, xmm0);
data_len--;
while(data_len)
{
xmm0 = _mm_load1_ps(data++);
xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
xmm2 = _mm_move_ss(xmm2, xmm0);
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm5 = _mm_add_ps(xmm5, xmm0);
data_len--;
}
_mm_storeu_ps(autoc, xmm5);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
__m128 xmm0, xmm1, xmm2, xmm3, xmm5, xmm6;
(void) lag;
FLAC__ASSERT(lag > 0);
FLAC__ASSERT(lag <= 8);
FLAC__ASSERT(lag <= data_len);
FLAC__ASSERT(data_len > 0);
xmm5 = _mm_setzero_ps();
xmm6 = _mm_setzero_ps();
xmm0 = _mm_load_ss(data++);
xmm2 = xmm0;
xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
xmm3 = _mm_setzero_ps();
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm5 = _mm_add_ps(xmm5, xmm0);
data_len--;
while(data_len)
{
xmm0 = _mm_load1_ps(data++);
xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
xmm3 = _mm_move_ss(xmm3, xmm2);
xmm2 = _mm_move_ss(xmm2, xmm0);
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm3);
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm6 = _mm_add_ps(xmm6, xmm1);
xmm5 = _mm_add_ps(xmm5, xmm0);
data_len--;
}
_mm_storeu_ps(autoc, xmm5);
_mm_storeu_ps(autoc+4, xmm6);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
__m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
(void) lag;
FLAC__ASSERT(lag > 0);
FLAC__ASSERT(lag <= 12);
FLAC__ASSERT(lag <= data_len);
FLAC__ASSERT(data_len > 0);
xmm5 = _mm_setzero_ps();
xmm6 = _mm_setzero_ps();
xmm7 = _mm_setzero_ps();
xmm0 = _mm_load_ss(data++);
xmm2 = xmm0;
xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
xmm3 = _mm_setzero_ps();
xmm4 = _mm_setzero_ps();
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm5 = _mm_add_ps(xmm5, xmm0);
data_len--;
while(data_len)
{
xmm0 = _mm_load1_ps(data++);
xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
xmm4 = _mm_move_ss(xmm4, xmm3);
xmm3 = _mm_move_ss(xmm3, xmm2);
xmm2 = _mm_move_ss(xmm2, xmm0);
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm2);
xmm5 = _mm_add_ps(xmm5, xmm1);
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm3);
xmm6 = _mm_add_ps(xmm6, xmm1);
xmm0 = _mm_mul_ps(xmm0, xmm4);
xmm7 = _mm_add_ps(xmm7, xmm0);
data_len--;
}
_mm_storeu_ps(autoc, xmm5);
_mm_storeu_ps(autoc+4, xmm6);
_mm_storeu_ps(autoc+8, xmm7);
}
FLAC__SSE_TARGET("sse")
void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
{
__m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9;
(void) lag;
FLAC__ASSERT(lag > 0);
FLAC__ASSERT(lag <= 16);
FLAC__ASSERT(lag <= data_len);
FLAC__ASSERT(data_len > 0);
xmm6 = _mm_setzero_ps();
xmm7 = _mm_setzero_ps();
xmm8 = _mm_setzero_ps();
xmm9 = _mm_setzero_ps();
xmm0 = _mm_load_ss(data++);
xmm2 = xmm0;
xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
xmm3 = _mm_setzero_ps();
xmm4 = _mm_setzero_ps();
xmm5 = _mm_setzero_ps();
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm6 = _mm_add_ps(xmm6, xmm0);
data_len--;
while(data_len)
{
xmm0 = _mm_load1_ps(data++);
/* shift xmm5:xmm4:xmm3:xmm2 left by one float */
xmm5 = _mm_shuffle_ps(xmm5, xmm5, _MM_SHUFFLE(2,1,0,3));
xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
xmm5 = _mm_move_ss(xmm5, xmm4);
xmm4 = _mm_move_ss(xmm4, xmm3);
xmm3 = _mm_move_ss(xmm3, xmm2);
xmm2 = _mm_move_ss(xmm2, xmm0);
/* xmm9|xmm8|xmm7|xmm6 += xmm0|xmm0|xmm0|xmm0 * xmm5|xmm4|xmm3|xmm2 */
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm5);
xmm9 = _mm_add_ps(xmm9, xmm1);
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm4);
xmm8 = _mm_add_ps(xmm8, xmm1);
xmm1 = xmm0;
xmm1 = _mm_mul_ps(xmm1, xmm3);
xmm7 = _mm_add_ps(xmm7, xmm1);
xmm0 = _mm_mul_ps(xmm0, xmm2);
xmm6 = _mm_add_ps(xmm6, xmm0);
data_len--;
}
_mm_storeu_ps(autoc, xmm6);
_mm_storeu_ps(autoc+4, xmm7);
_mm_storeu_ps(autoc+8, xmm8);
_mm_storeu_ps(autoc+12,xmm9);
}
#endif /* FLAC__SSE_SUPPORTED */
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
#endif /* FLAC__NO_ASM */
#endif /* FLAC__INTEGER_ONLY_LIBRARY */

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core/deps/flac/src/libFLAC/lpc_intrin_sse41.c Normal file
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core/deps/flac/src/libFLAC/md5.c Normal file
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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy() */
#include "private/md5.h"
#include "share/alloc.h"
#include "share/endswap.h"
/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*
* Changed so as no longer to depend on Colin Plumb's `usual.h' header
* definitions; now uses stuff from dpkg's config.h.
* - Ian Jackson <ijackson@nyx.cs.du.edu>.
* Still in the public domain.
*
* Josh Coalson: made some changes to integrate with libFLAC.
* Still in the public domain.
*/
/* The four core functions - F1 is optimized somewhat */
/* #define F1(x, y, z) (x & y | ~x & z) */
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
/* This is the central step in the MD5 algorithm. */
#define MD5STEP(f,w,x,y,z,in,s) \
(w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data. MD5Update blocks
* the data and converts bytes into longwords for this routine.
*/
static void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16])
{
register FLAC__uint32 a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}
#if WORDS_BIGENDIAN
//@@@@@@ OPT: use bswap/intrinsics
static void byteSwap(FLAC__uint32 *buf, unsigned words)
{
register FLAC__uint32 x;
do {
x = *buf;
x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff);
*buf++ = (x >> 16) | (x << 16);
} while (--words);
}
static void byteSwapX16(FLAC__uint32 *buf)
{
register FLAC__uint32 x;
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf = (x >> 16) | (x << 16);
}
#else
#define byteSwap(buf, words)
#define byteSwapX16(buf)
#endif
/*
* Update context to reflect the concatenation of another buffer full
* of bytes.
*/
static void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, unsigned len)
{
FLAC__uint32 t;
/* Update byte count */
t = ctx->bytes[0];
if ((ctx->bytes[0] = t + len) < t)
ctx->bytes[1]++; /* Carry from low to high */
t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */
if (t > len) {
memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len);
return;
}
/* First chunk is an odd size */
memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t);
byteSwapX16(ctx->in);
FLAC__MD5Transform(ctx->buf, ctx->in);
buf += t;
len -= t;
/* Process data in 64-byte chunks */
while (len >= 64) {
memcpy(ctx->in, buf, 64);
byteSwapX16(ctx->in);
FLAC__MD5Transform(ctx->buf, ctx->in);
buf += 64;
len -= 64;
}
/* Handle any remaining bytes of data. */
memcpy(ctx->in, buf, len);
}
/*
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants.
*/
void FLAC__MD5Init(FLAC__MD5Context *ctx)
{
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
ctx->bytes[0] = 0;
ctx->bytes[1] = 0;
ctx->internal_buf.p8 = 0;
ctx->capacity = 0;
}
/*
* Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*/
void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
{
int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */
FLAC__byte *p = (FLAC__byte *)ctx->in + count;
/* Set the first char of padding to 0x80. There is always room. */
*p++ = 0x80;
/* Bytes of padding needed to make 56 bytes (-8..55) */
count = 56 - 1 - count;
if (count < 0) { /* Padding forces an extra block */
memset(p, 0, count + 8);
byteSwapX16(ctx->in);
FLAC__MD5Transform(ctx->buf, ctx->in);
p = (FLAC__byte *)ctx->in;
count = 56;
}
memset(p, 0, count);
byteSwap(ctx->in, 14);
/* Append length in bits and transform */
ctx->in[14] = ctx->bytes[0] << 3;
ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
FLAC__MD5Transform(ctx->buf, ctx->in);
byteSwap(ctx->buf, 4);
memcpy(digest, ctx->buf, 16);
if (0 != ctx->internal_buf.p8) {
free(ctx->internal_buf.p8);
ctx->internal_buf.p8 = 0;
ctx->capacity = 0;
}
memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
}
/*
* Convert the incoming audio signal to a byte stream
*/
static void format_input_(FLAC__multibyte *mbuf, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
{
FLAC__byte *buf_ = mbuf->p8;
FLAC__int16 *buf16 = mbuf->p16;
FLAC__int32 *buf32 = mbuf->p32;
FLAC__int32 a_word;
unsigned channel, sample;
/* Storage in the output buffer, buf, is little endian. */
#define BYTES_CHANNEL_SELECTOR(bytes, channels) (bytes * 100 + channels)
/* First do the most commonly used combinations. */
switch (BYTES_CHANNEL_SELECTOR (bytes_per_sample, channels)) {
/* One byte per sample. */
case (BYTES_CHANNEL_SELECTOR (1, 1)):
for (sample = 0; sample < samples; sample++)
*buf_++ = signal[0][sample];
return;
case (BYTES_CHANNEL_SELECTOR (1, 2)):
for (sample = 0; sample < samples; sample++) {
*buf_++ = signal[0][sample];
*buf_++ = signal[1][sample];
}
return;
case (BYTES_CHANNEL_SELECTOR (1, 4)):
for (sample = 0; sample < samples; sample++) {
*buf_++ = signal[0][sample];
*buf_++ = signal[1][sample];
*buf_++ = signal[2][sample];
*buf_++ = signal[3][sample];
}
return;
case (BYTES_CHANNEL_SELECTOR (1, 6)):
for (sample = 0; sample < samples; sample++) {
*buf_++ = signal[0][sample];
*buf_++ = signal[1][sample];
*buf_++ = signal[2][sample];
*buf_++ = signal[3][sample];
*buf_++ = signal[4][sample];
*buf_++ = signal[5][sample];
}
return;
case (BYTES_CHANNEL_SELECTOR (1, 8)):
for (sample = 0; sample < samples; sample++) {
*buf_++ = signal[0][sample];
*buf_++ = signal[1][sample];
*buf_++ = signal[2][sample];
*buf_++ = signal[3][sample];
*buf_++ = signal[4][sample];
*buf_++ = signal[5][sample];
*buf_++ = signal[6][sample];
*buf_++ = signal[7][sample];
}
return;
/* Two bytes per sample. */
case (BYTES_CHANNEL_SELECTOR (2, 1)):
for (sample = 0; sample < samples; sample++)
*buf16++ = H2LE_16(signal[0][sample]);
return;
case (BYTES_CHANNEL_SELECTOR (2, 2)):
for (sample = 0; sample < samples; sample++) {
*buf16++ = H2LE_16(signal[0][sample]);
*buf16++ = H2LE_16(signal[1][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (2, 4)):
for (sample = 0; sample < samples; sample++) {
*buf16++ = H2LE_16(signal[0][sample]);
*buf16++ = H2LE_16(signal[1][sample]);
*buf16++ = H2LE_16(signal[2][sample]);
*buf16++ = H2LE_16(signal[3][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (2, 6)):
for (sample = 0; sample < samples; sample++) {
*buf16++ = H2LE_16(signal[0][sample]);
*buf16++ = H2LE_16(signal[1][sample]);
*buf16++ = H2LE_16(signal[2][sample]);
*buf16++ = H2LE_16(signal[3][sample]);
*buf16++ = H2LE_16(signal[4][sample]);
*buf16++ = H2LE_16(signal[5][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (2, 8)):
for (sample = 0; sample < samples; sample++) {
*buf16++ = H2LE_16(signal[0][sample]);
*buf16++ = H2LE_16(signal[1][sample]);
*buf16++ = H2LE_16(signal[2][sample]);
*buf16++ = H2LE_16(signal[3][sample]);
*buf16++ = H2LE_16(signal[4][sample]);
*buf16++ = H2LE_16(signal[5][sample]);
*buf16++ = H2LE_16(signal[6][sample]);
*buf16++ = H2LE_16(signal[7][sample]);
}
return;
/* Three bytes per sample. */
case (BYTES_CHANNEL_SELECTOR (3, 1)):
for (sample = 0; sample < samples; sample++) {
a_word = signal[0][sample];
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word;
}
return;
case (BYTES_CHANNEL_SELECTOR (3, 2)):
for (sample = 0; sample < samples; sample++) {
a_word = signal[0][sample];
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word;
a_word = signal[1][sample];
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word;
}
return;
/* Four bytes per sample. */
case (BYTES_CHANNEL_SELECTOR (4, 1)):
for (sample = 0; sample < samples; sample++)
*buf32++ = H2LE_32(signal[0][sample]);
return;
case (BYTES_CHANNEL_SELECTOR (4, 2)):
for (sample = 0; sample < samples; sample++) {
*buf32++ = H2LE_32(signal[0][sample]);
*buf32++ = H2LE_32(signal[1][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (4, 4)):
for (sample = 0; sample < samples; sample++) {
*buf32++ = H2LE_32(signal[0][sample]);
*buf32++ = H2LE_32(signal[1][sample]);
*buf32++ = H2LE_32(signal[2][sample]);
*buf32++ = H2LE_32(signal[3][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (4, 6)):
for (sample = 0; sample < samples; sample++) {
*buf32++ = H2LE_32(signal[0][sample]);
*buf32++ = H2LE_32(signal[1][sample]);
*buf32++ = H2LE_32(signal[2][sample]);
*buf32++ = H2LE_32(signal[3][sample]);
*buf32++ = H2LE_32(signal[4][sample]);
*buf32++ = H2LE_32(signal[5][sample]);
}
return;
case (BYTES_CHANNEL_SELECTOR (4, 8)):
for (sample = 0; sample < samples; sample++) {
*buf32++ = H2LE_32(signal[0][sample]);
*buf32++ = H2LE_32(signal[1][sample]);
*buf32++ = H2LE_32(signal[2][sample]);
*buf32++ = H2LE_32(signal[3][sample]);
*buf32++ = H2LE_32(signal[4][sample]);
*buf32++ = H2LE_32(signal[5][sample]);
*buf32++ = H2LE_32(signal[6][sample]);
*buf32++ = H2LE_32(signal[7][sample]);
}
return;
default:
break;
}
/* General version. */
switch (bytes_per_sample) {
case 1:
for (sample = 0; sample < samples; sample++)
for (channel = 0; channel < channels; channel++)
*buf_++ = signal[channel][sample];
return;
case 2:
for (sample = 0; sample < samples; sample++)
for (channel = 0; channel < channels; channel++)
*buf16++ = H2LE_16(signal[channel][sample]);
return;
case 3:
for (sample = 0; sample < samples; sample++)
for (channel = 0; channel < channels; channel++) {
a_word = signal[channel][sample];
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
*buf_++ = (FLAC__byte)a_word;
}
return;
case 4:
for (sample = 0; sample < samples; sample++)
for (channel = 0; channel < channels; channel++)
*buf32++ = H2LE_32(signal[channel][sample]);
return;
default:
break;
}
}
/*
* Convert the incoming audio signal to a byte stream and FLAC__MD5Update it.
*/
FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
{
const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
/* overflow check */
if ((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
return false;
if ((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
return false;
if (ctx->capacity < bytes_needed) {
if (0 == (ctx->internal_buf.p8 = safe_realloc_(ctx->internal_buf.p8, bytes_needed))) {
if (0 == (ctx->internal_buf.p8 = safe_malloc_(bytes_needed))) {
ctx->capacity = 0;
return false;
}
}
ctx->capacity = bytes_needed;
}
format_input_(&ctx->internal_buf, signal, channels, samples, bytes_per_sample);
FLAC__MD5Update(ctx, ctx->internal_buf.p8, bytes_needed);
return true;
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include "private/memory.h"
#include "FLAC/assert.h"
#include "share/alloc.h"
void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
{
void *x;
FLAC__ASSERT(0 != aligned_address);
#ifdef FLAC__ALIGN_MALLOC_DATA
/* align on 32-byte (256-bit) boundary */
x = safe_malloc_add_2op_(bytes, /*+*/31L);
*aligned_address = (void*)(((uintptr_t)x + 31L) & -32L);
#else
x = safe_malloc_(bytes);
*aligned_address = x;
#endif
return x;
}
FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer)
{
FLAC__int32 *pu; /* unaligned pointer */
union { /* union needed to comply with C99 pointer aliasing rules */
FLAC__int32 *pa; /* aligned pointer */
void *pv; /* aligned pointer alias */
} u;
FLAC__ASSERT(elements > 0);
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
return false;
pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
if(0 == pu) {
return false;
}
else {
if(*unaligned_pointer != 0)
free(*unaligned_pointer);
*unaligned_pointer = pu;
*aligned_pointer = u.pa;
return true;
}
}
FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer)
{
FLAC__uint32 *pu; /* unaligned pointer */
union { /* union needed to comply with C99 pointer aliasing rules */
FLAC__uint32 *pa; /* aligned pointer */
void *pv; /* aligned pointer alias */
} u;
FLAC__ASSERT(elements > 0);
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
return false;
pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
if(0 == pu) {
return false;
}
else {
if(*unaligned_pointer != 0)
free(*unaligned_pointer);
*unaligned_pointer = pu;
*aligned_pointer = u.pa;
return true;
}
}
FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer)
{
FLAC__uint64 *pu; /* unaligned pointer */
union { /* union needed to comply with C99 pointer aliasing rules */
FLAC__uint64 *pa; /* aligned pointer */
void *pv; /* aligned pointer alias */
} u;
FLAC__ASSERT(elements > 0);
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
return false;
pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
if(0 == pu) {
return false;
}
else {
if(*unaligned_pointer != 0)
free(*unaligned_pointer);
*unaligned_pointer = pu;
*aligned_pointer = u.pa;
return true;
}
}
FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, unsigned **unaligned_pointer, unsigned **aligned_pointer)
{
unsigned *pu; /* unaligned pointer */
union { /* union needed to comply with C99 pointer aliasing rules */
unsigned *pa; /* aligned pointer */
void *pv; /* aligned pointer alias */
} u;
FLAC__ASSERT(elements > 0);
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
return false;
pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
if(0 == pu) {
return false;
}
else {
if(*unaligned_pointer != 0)
free(*unaligned_pointer);
*unaligned_pointer = pu;
*aligned_pointer = u.pa;
return true;
}
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer)
{
FLAC__real *pu; /* unaligned pointer */
union { /* union needed to comply with C99 pointer aliasing rules */
FLAC__real *pa; /* aligned pointer */
void *pv; /* aligned pointer alias */
} u;
FLAC__ASSERT(elements > 0);
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
return false;
pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
if(0 == pu) {
return false;
}
else {
if(*unaligned_pointer != 0)
free(*unaligned_pointer);
*unaligned_pointer = pu;
*aligned_pointer = u.pa;
return true;
}
}
#endif
void *safe_malloc_mul_2op_p(size_t size1, size_t size2)
{
if(!size1 || !size2)
return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
if(size1 > SIZE_MAX / size2)
return 0;
return malloc(size1*size2);
}

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2006-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <math.h>
#include "share/compat.h"
#include "FLAC/assert.h"
#include "FLAC/format.h"
#include "private/window.h"
#ifndef FLAC__INTEGER_ONLY_LIBRARY
void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
if (L & 1) {
for (n = 0; n <= N/2; n++)
window[n] = 2.0f * n / (float)N;
for (; n <= N; n++)
window[n] = 2.0f - 2.0f * n / (float)N;
}
else {
for (n = 0; n <= L/2-1; n++)
window[n] = 2.0f * n / (float)N;
for (; n <= N; n++)
window[n] = 2.0f - 2.0f * n / (float)N;
}
}
void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.62f - 0.48f * fabs((float)n/(float)N-0.5f) - 0.38f * cos(2.0f * M_PI * ((float)n/(float)N)));
}
void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.42f - 0.5f * cos(2.0f * M_PI * n / N) + 0.08f * cos(4.0f * M_PI * n / N));
}
/* 4-term -92dB side-lobe */
void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n <= N; n++)
window[n] = (FLAC__real)(0.35875f - 0.48829f * cos(2.0f * M_PI * n / N) + 0.14128f * cos(4.0f * M_PI * n / N) - 0.01168f * cos(6.0f * M_PI * n / N));
}
void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
const double N2 = (double)N / 2.;
FLAC__int32 n;
for (n = 0; n <= N; n++) {
double k = ((double)n - N2) / N2;
k = 1.0f - k * k;
window[n] = (FLAC__real)(k * k);
}
}
void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(1.0f - 1.93f * cos(2.0f * M_PI * n / N) + 1.29f * cos(4.0f * M_PI * n / N) - 0.388f * cos(6.0f * M_PI * n / N) + 0.0322f * cos(8.0f * M_PI * n / N));
}
void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)
{
const FLAC__int32 N = L - 1;
const double N2 = (double)N / 2.;
FLAC__int32 n;
for (n = 0; n <= N; n++) {
const double k = ((double)n - N2) / (stddev * N2);
window[n] = (FLAC__real)exp(-0.5f * k * k);
}
}
void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.54f - 0.46f * cos(2.0f * M_PI * n / N));
}
void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(2.0f * M_PI * n / N));
}
void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.402f - 0.498f * cos(2.0f * M_PI * n / N) + 0.098f * cos(4.0f * M_PI * n / N) - 0.001f * cos(6.0f * M_PI * n / N));
}
void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(0.3635819f - 0.4891775f*cos(2.0f*M_PI*n/N) + 0.1365995f*cos(4.0f*M_PI*n/N) - 0.0106411f*cos(6.0f*M_PI*n/N));
}
void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L)
{
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = 1.0f;
}
void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L)
{
FLAC__int32 n;
if (L & 1) {
for (n = 1; n <= (L+1)/2; n++)
window[n-1] = 2.0f * n / ((float)L + 1.0f);
for (; n <= L; n++)
window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
}
else {
for (n = 1; n <= L/2; n++)
window[n-1] = 2.0f * n / ((float)L + 1.0f);
for (; n <= L; n++)
window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
}
}
void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p)
{
if (p <= 0.0)
FLAC__window_rectangle(window, L);
else if (p >= 1.0)
FLAC__window_hann(window, L);
else {
const FLAC__int32 Np = (FLAC__int32)(p / 2.0f * L) - 1;
FLAC__int32 n;
/* start with rectangle... */
FLAC__window_rectangle(window, L);
/* ...replace ends with hann */
if (Np > 0) {
for (n = 0; n <= Np; n++) {
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * n / Np));
window[L-Np-1+n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * (n+Np) / Np));
}
}
}
}
void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
{
const FLAC__int32 start_n = (FLAC__int32)(start * L);
const FLAC__int32 end_n = (FLAC__int32)(end * L);
const FLAC__int32 N = end_n - start_n;
FLAC__int32 Np, n, i;
if (p <= 0.0f)
FLAC__window_partial_tukey(window, L, 0.05f, start, end);
else if (p >= 1.0f)
FLAC__window_partial_tukey(window, L, 0.95f, start, end);
else {
Np = (FLAC__int32)(p / 2.0f * N);
for (n = 0; n < start_n && n < L; n++)
window[n] = 0.0f;
for (i = 1; n < (start_n+Np) && n < L; n++, i++)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Np));
for (; n < (end_n-Np) && n < L; n++)
window[n] = 1.0f;
for (i = Np; n < end_n && n < L; n++, i--)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Np));
for (; n < L; n++)
window[n] = 0.0f;
}
}
void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
{
const FLAC__int32 start_n = (FLAC__int32)(start * L);
const FLAC__int32 end_n = (FLAC__int32)(end * L);
FLAC__int32 Ns, Ne, n, i;
if (p <= 0.0f)
FLAC__window_punchout_tukey(window, L, 0.05f, start, end);
else if (p >= 1.0f)
FLAC__window_punchout_tukey(window, L, 0.95f, start, end);
else {
Ns = (FLAC__int32)(p / 2.0f * start_n);
Ne = (FLAC__int32)(p / 2.0f * (L - end_n));
for (n = 0, i = 1; n < Ns && n < L; n++, i++)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ns));
for (; n < start_n-Ns && n < L; n++)
window[n] = 1.0f;
for (i = Ns; n < start_n && n < L; n++, i--)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ns));
for (; n < end_n && n < L; n++)
window[n] = 0.0f;
for (i = 1; n < end_n+Ne && n < L; n++, i++)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ne));
for (; n < L - (Ne) && n < L; n++)
window[n] = 1.0f;
for (i = Ne; n < L; n++, i--)
window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ne));
}
}
void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L)
{
const FLAC__int32 N = L - 1;
const double N2 = (double)N / 2.;
FLAC__int32 n;
for (n = 0; n <= N; n++) {
const double k = ((double)n - N2) / N2;
window[n] = (FLAC__real)(1.0f - k * k);
}
}
#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2013-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <io.h>
#include "share/windows_unicode_filenames.h"
/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
static wchar_t *wchar_from_utf8(const char *str)
{
wchar_t *widestr;
int len;
if (!str)
return NULL;
if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
return NULL;
if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
return NULL;
if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
free(widestr);
widestr = NULL;
}
return widestr;
}
static FLAC__bool utf8_filenames = false;
void flac_internal_set_utf8_filenames(FLAC__bool flag)
{
utf8_filenames = flag ? true : false;
}
FLAC__bool flac_internal_get_utf8_filenames(void)
{
return utf8_filenames;
}
/* file functions */
FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
{
if (!utf8_filenames) {
return fopen(filename, mode);
} else {
wchar_t *wname = NULL;
wchar_t *wmode = NULL;
FILE *f = NULL;
do {
if (!(wname = wchar_from_utf8(filename))) break;
if (!(wmode = wchar_from_utf8(mode))) break;
f = _wfopen(wname, wmode);
} while(0);
free(wname);
free(wmode);
return f;
}
}
int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
{
if (!utf8_filenames) {
return _stat64(path, buffer);
} else {
wchar_t *wpath;
int ret;
if (!(wpath = wchar_from_utf8(path))) return -1;
ret = _wstat64(wpath, buffer);
free(wpath);
return ret;
}
}
int flac_internal_chmod_utf8(const char *filename, int pmode)
{
if (!utf8_filenames) {
return _chmod(filename, pmode);
} else {
wchar_t *wname;
int ret;
if (!(wname = wchar_from_utf8(filename))) return -1;
ret = _wchmod(wname, pmode);
free(wname);
return ret;
}
}
int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
{
if (!utf8_filenames) {
return utime(filename, times);
} else {
wchar_t *wname;
struct __utimbuf64 ut;
int ret;
if (!(wname = wchar_from_utf8(filename))) return -1;
ut.actime = times->actime;
ut.modtime = times->modtime;
ret = _wutime64(wname, &ut);
free(wname);
return ret;
}
}
int flac_internal_unlink_utf8(const char *filename)
{
if (!utf8_filenames) {
return _unlink(filename);
} else {
wchar_t *wname;
int ret;
if (!(wname = wchar_from_utf8(filename))) return -1;
ret = _wunlink(wname);
free(wname);
return ret;
}
}
int flac_internal_rename_utf8(const char *oldname, const char *newname)
{
if (!utf8_filenames) {
return rename(oldname, newname);
} else {
wchar_t *wold = NULL;
wchar_t *wnew = NULL;
int ret = -1;
do {
if (!(wold = wchar_from_utf8(oldname))) break;
if (!(wnew = wchar_from_utf8(newname))) break;
ret = _wrename(wold, wnew);
} while(0);
free(wold);
free(wnew);
return ret;
}
}
HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
{
if (!utf8_filenames) {
return CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
} else {
wchar_t *wname;
HANDLE handle = INVALID_HANDLE_VALUE;
if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
handle = CreateFileW(wname, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
free(wname);
}
return handle;
}
}

6
shell/linux/Makefile
View File

@ -15,6 +15,7 @@ STRIP=${CC_PREFIX}strip
LD=${CC}
CHD5_LZMA := 1
CHD5_FLAC := 1
MFLAGS :=
ASFLAGS :=
@ -241,6 +242,11 @@ ifdef CHD5_LZMA
CFLAGS += -D_7ZIP_ST -DCHD5_LZMA
endif
ifdef CHD5_FLAC
CFLAGS += -DCHD5_FLAC
LIBS += `pkg-config --libs flac`
endif
RZDCY_SRC_DIR = $(LOCAL_PATH)/../../core
include $(RZDCY_SRC_DIR)/core.mk

2
wercker.yml
View File

@ -4,7 +4,7 @@ build:
steps:
- script:
name: install-dependencies
code: sudo apt-get clean && sudo apt-get update && sudo apt-get install -y build-essential pkgconf libasound2-dev libgl1-mesa-dev libx11-dev
code: sudo apt-get clean && sudo apt-get update && sudo apt-get install -y build-essential pkgconf libasound2-dev libgl1-mesa-dev libx11-dev libflac-dev
- script:
name: gcc-version
code: gcc --version