mirror of https://github.com/PCSX2/pcsx2.git
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/* SPU2-X, A plugin for Emulating the Sound Processing Unit of the Playstation 2
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* Developed and maintained by the Pcsx2 Development Team.
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*
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* The file is based on WavFile.h from SoundTouch library.
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* Original portions are (c) 2009 by Olli Parviainen (oparviai 'at' iki.fi)
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*
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* SPU2-X is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* SPU2-X is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with SPU2-X. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Note the file is mostly a copy paste of the WavFile.h from SoundTouch library. It was
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// shrunken to support only output 16 bits wav files
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#ifndef WAVFILE_H
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#define WAVFILE_H
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#include <stdio.h>
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#ifndef uint
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typedef unsigned int uint;
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#endif
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/// WAV audio file 'riff' section header
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typedef struct
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{
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char riff_char[4];
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int package_len;
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char wave[4];
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} WavRiff;
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/// WAV audio file 'format' section header
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typedef struct
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{
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char fmt[4];
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int format_len;
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short fixed;
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short channel_number;
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int sample_rate;
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int byte_rate;
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short byte_per_sample;
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short bits_per_sample;
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} WavFormat;
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/// WAV audio file 'data' section header
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typedef struct
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{
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char data_field[4];
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uint data_len;
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} WavData;
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/// WAV audio file header
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typedef struct
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{
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WavRiff riff;
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WavFormat format;
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WavData data;
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} WavHeader;
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/// Class for writing WAV audio files.
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class WavOutFile
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{
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private:
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/// Pointer to the WAV file
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FILE *fptr;
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/// WAV file header data.
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WavHeader header;
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/// Counter of how many bytes have been written to the file so far.
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int bytesWritten;
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/// Fills in WAV file header information.
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void fillInHeader(const uint sampleRate, const uint bits, const uint channels);
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/// Finishes the WAV file header by supplementing information of amount of
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/// data written to file etc
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void finishHeader();
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/// Writes the WAV file header.
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void writeHeader();
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public:
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/// Constructor: Creates a new WAV file. Throws a 'runtime_error' exception
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/// if file creation fails.
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WavOutFile(const char *fileName, ///< Filename
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int sampleRate, ///< Sample rate (e.g. 44100 etc)
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int bits, ///< Bits per sample (8 or 16 bits)
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int channels ///< Number of channels (1=mono, 2=stereo)
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);
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/// Destructor: Finalizes & closes the WAV file.
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~WavOutFile();
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/// Write data to WAV file. Throws a 'runtime_error' exception if writing to
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/// file fails.
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void write(const short *buffer, ///< Pointer to sample data buffer.
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int numElems ///< How many array items are to be written to file.
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);
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};
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#endif
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