2018-11-15 23:31:39 +00:00
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/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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2010-09-25 15:46:12 +00:00
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/*
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Win32 AVI Output module
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(c) 2004 blip
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*/
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#include <windows.h>
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#include <vfw.h>
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#include "wsnes9x.h" // for GUI.hWnd
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#include "AVIOutput.h"
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#define VIDEO_STREAM 0
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#define AUDIO_STREAM 1
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struct AVIFile
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{
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bool valid;
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int fps;
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int frameskip;
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bool video_added;
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BITMAPINFOHEADER bitmap_format;
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bool sound_added;
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WAVEFORMATEX wave_format;
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AVISTREAMINFO avi_video_header;
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AVISTREAMINFO avi_sound_header;
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PAVIFILE avi_file;
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PAVISTREAM streams[2];
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PAVISTREAM compressed_streams[2];
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AVICOMPRESSOPTIONS compress_options[2];
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AVICOMPRESSOPTIONS* compress_options_ptr[2];
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int video_frames;
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int sound_samples;
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long tBytes, ByteBuffer;
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};
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2010-09-25 17:35:19 +00:00
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static TCHAR saved_cur_avi_fnameandext[MAX_PATH];
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static TCHAR saved_avi_fname[MAX_PATH];
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static TCHAR saved_avi_ext[MAX_PATH];
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2010-09-25 15:46:12 +00:00
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static int avi_segnum=0;
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static struct AVIFile saved_avi_info;
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static int use_prev_options=0;
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2010-09-25 17:35:19 +00:00
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static bool truncate_existing(const TCHAR* filename)
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2010-09-25 15:46:12 +00:00
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{
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// this is only here because AVIFileOpen doesn't seem to do it for us
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2010-09-25 17:35:19 +00:00
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FILE* fd = _tfopen(filename, TEXT("wb"));
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2010-09-25 15:46:12 +00:00
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if(fd)
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{
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fclose(fd);
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return true;
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}
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return false;
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}
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static void clean_up(AVIFile* _avi)
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{
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AVIFile& avi = *_avi;
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if(avi.sound_added)
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{
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if(avi.compressed_streams[AUDIO_STREAM])
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{
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AVIStreamClose(avi.compressed_streams[AUDIO_STREAM]);
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avi.compressed_streams[AUDIO_STREAM] = NULL;
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avi.streams[AUDIO_STREAM] = NULL; // compressed_streams[AUDIO_STREAM] is just a copy of streams[AUDIO_STREAM]
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}
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}
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if(avi.video_added)
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{
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if(avi.compressed_streams[VIDEO_STREAM])
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{
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AVIStreamClose(avi.compressed_streams[VIDEO_STREAM]);
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avi.compressed_streams[VIDEO_STREAM] = NULL;
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}
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if(avi.streams[VIDEO_STREAM])
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{
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AVIStreamClose(avi.streams[VIDEO_STREAM]);
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avi.streams[VIDEO_STREAM] = NULL;
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}
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}
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if(avi.avi_file)
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{
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AVIFileClose(avi.avi_file);
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avi.avi_file = NULL;
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}
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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void AVICreate(struct AVIFile** avi_out)
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{
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*avi_out = new AVIFile;
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memset(*avi_out, 0, sizeof(AVIFile));
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AVIFileInit();
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}
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void AVIClose(struct AVIFile** avi_out)
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{
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if(*avi_out)
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{
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clean_up(*avi_out);
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delete *avi_out;
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}
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*avi_out = NULL;
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AVIFileExit();
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}
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void AVISetFramerate(const int fps, const int frameskip, struct AVIFile* avi_out)
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{
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avi_out->fps = fps;
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avi_out->frameskip = frameskip;
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}
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void AVISetVideoFormat(const BITMAPINFOHEADER* bitmap_format, struct AVIFile* avi_out)
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{
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memcpy(&(avi_out->bitmap_format), bitmap_format, sizeof(BITMAPINFOHEADER));
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avi_out->video_added = true;
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}
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void AVISetSoundFormat(const WAVEFORMATEX* wave_format, struct AVIFile* avi_out)
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{
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memcpy(&(avi_out->wave_format), wave_format, sizeof(WAVEFORMATEX));
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avi_out->sound_added = true;
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}
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2010-09-25 17:35:19 +00:00
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int AVIBegin(const TCHAR* filename, struct AVIFile* _avi_out)
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2010-09-25 15:46:12 +00:00
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{
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AVIFile& avi = *_avi_out;
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int result = 0;
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do
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{
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if(!avi.video_added)
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break;
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if(!truncate_existing(filename))
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break;
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// open the file
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if(FAILED(AVIFileOpen(&avi.avi_file, filename, OF_CREATE | OF_WRITE, NULL)))
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break;
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// create the video stream
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memset(&avi.avi_video_header, 0, sizeof(AVISTREAMINFO));
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avi.avi_video_header.fccType = streamtypeVIDEO;
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avi.avi_video_header.dwScale = avi.frameskip;
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avi.avi_video_header.dwRate = avi.fps;
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avi.avi_video_header.dwSuggestedBufferSize = avi.bitmap_format.biSizeImage;
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if(FAILED(AVIFileCreateStream(avi.avi_file, &avi.streams[VIDEO_STREAM], &avi.avi_video_header)))
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break;
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if(use_prev_options)
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{
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avi.compress_options[VIDEO_STREAM] = saved_avi_info.compress_options[VIDEO_STREAM];
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avi.compress_options_ptr[VIDEO_STREAM] = &avi.compress_options[0];
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}
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else
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{
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// get compression options
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memset(&avi.compress_options[VIDEO_STREAM], 0, sizeof(AVICOMPRESSOPTIONS));
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avi.compress_options_ptr[VIDEO_STREAM] = &avi.compress_options[0];
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if(!AVISaveOptions(GUI.hWnd, 0, 1, &avi.streams[VIDEO_STREAM], &avi.compress_options_ptr[VIDEO_STREAM]))
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break;
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}
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// create compressed stream
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if(FAILED(AVIMakeCompressedStream(&avi.compressed_streams[VIDEO_STREAM], avi.streams[VIDEO_STREAM], &avi.compress_options[VIDEO_STREAM], NULL)))
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break;
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// set the stream format
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if(FAILED(AVIStreamSetFormat(avi.compressed_streams[VIDEO_STREAM], 0, (void*)&avi.bitmap_format, avi.bitmap_format.biSize)))
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break;
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// add sound (if requested)
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if(avi.sound_added)
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{
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// create the audio stream
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memset(&avi.avi_sound_header, 0, sizeof(AVISTREAMINFO));
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avi.avi_sound_header.fccType = streamtypeAUDIO;
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avi.avi_sound_header.dwQuality = (DWORD)-1;
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avi.avi_sound_header.dwScale = avi.wave_format.nBlockAlign;
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avi.avi_sound_header.dwRate = avi.wave_format.nAvgBytesPerSec;
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avi.avi_sound_header.dwSampleSize = avi.wave_format.nBlockAlign;
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avi.avi_sound_header.dwInitialFrames = 1;
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if(FAILED(AVIFileCreateStream(avi.avi_file, &avi.streams[AUDIO_STREAM], &avi.avi_sound_header)))
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break;
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// AVISaveOptions doesn't seem to work for audio streams
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// so here we just copy the pointer for the compressed stream
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avi.compressed_streams[AUDIO_STREAM] = avi.streams[AUDIO_STREAM];
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// set the stream format
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if(FAILED(AVIStreamSetFormat(avi.compressed_streams[AUDIO_STREAM], 0, (void*)&avi.wave_format, sizeof(WAVEFORMATEX))))
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break;
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}
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// initialize counters
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avi.video_frames = 0;
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avi.sound_samples = 0;
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avi.tBytes = 0;
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avi.ByteBuffer = 0;
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2010-09-25 17:35:19 +00:00
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lstrcpyn(saved_cur_avi_fnameandext,filename,MAX_PATH);
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lstrcpyn(saved_avi_fname,filename,MAX_PATH);
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TCHAR* dot = _tcsrchr(saved_avi_fname, TEXT('.'));
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if(dot && dot > _tcsrchr(saved_avi_fname, TEXT('/')) && dot > _tcsrchr(saved_avi_fname, TEXT('\\')))
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2010-09-25 15:46:12 +00:00
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{
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2010-09-25 17:35:19 +00:00
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lstrcpy(saved_avi_ext,dot);
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dot[0]=TEXT('\0');
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2010-09-25 15:46:12 +00:00
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}
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// success
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result = 1;
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avi.valid = true;
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} while(false);
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if(!result)
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{
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clean_up(&avi);
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avi.valid = false;
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}
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return result;
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}
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int AVIGetVideoFormat(const struct AVIFile* avi_out, const BITMAPINFOHEADER** ppFormat)
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{
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if(!avi_out->valid ||
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!avi_out->video_added)
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{
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if(ppFormat)
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{
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*ppFormat = NULL;
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}
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return 0;
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}
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if(ppFormat)
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{
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*ppFormat = &avi_out->bitmap_format;
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}
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return 1;
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}
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int AVIGetSoundFormat(const struct AVIFile* avi_out, const WAVEFORMATEX** ppFormat)
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{
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if(!avi_out->valid ||
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!avi_out->sound_added)
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{
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if(ppFormat)
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{
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*ppFormat = NULL;
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}
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return 0;
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}
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if(ppFormat)
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{
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*ppFormat = &avi_out->wave_format;
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}
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return 1;
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}
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static int AVINextSegment(struct AVIFile* avi_out)
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{
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2010-09-25 17:35:19 +00:00
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TCHAR avi_fname[MAX_PATH];
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lstrcpy(avi_fname,saved_avi_fname);
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TCHAR avi_fname_temp[MAX_PATH];
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_stprintf(avi_fname_temp, TEXT("%s_part%d%s"), avi_fname, avi_segnum+2, saved_avi_ext);
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2010-09-25 15:46:12 +00:00
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saved_avi_info=*avi_out;
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use_prev_options=1;
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avi_segnum++;
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clean_up(avi_out);
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int ret = AVIBegin(avi_fname_temp, avi_out);
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use_prev_options=0;
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2010-09-25 17:35:19 +00:00
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lstrcpy(saved_avi_fname,avi_fname);
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2010-09-25 15:46:12 +00:00
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return ret;
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}
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void AVIAddVideoFrame(void* bitmap_data, struct AVIFile* avi_out)
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{
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if(!avi_out->valid ||
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!avi_out->video_added)
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{
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return;
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}
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if(FAILED(AVIStreamWrite(avi_out->compressed_streams[VIDEO_STREAM],
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avi_out->video_frames,
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1,
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bitmap_data,
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avi_out->bitmap_format.biSizeImage,
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AVIIF_KEYFRAME, NULL, &avi_out->ByteBuffer)))
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{
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avi_out->valid = false;
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return;
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}
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avi_out->video_frames++;
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avi_out->tBytes += avi_out->ByteBuffer;
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// segment / split AVI when it's almost 2 GB (2000MB, to be precise)
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if(!(avi_out->video_frames % 60) && avi_out->tBytes > 2097152000)
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AVINextSegment(avi_out);
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}
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void AVIAddSoundSamples(void* sound_data, const int num_samples, struct AVIFile* avi_out)
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{
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if(!avi_out->valid ||
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!avi_out->sound_added)
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{
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return;
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}
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int data_length = num_samples * avi_out->wave_format.nBlockAlign;
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if(FAILED(AVIStreamWrite(avi_out->compressed_streams[AUDIO_STREAM],
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avi_out->sound_samples,
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num_samples,
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sound_data,
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data_length,
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0, NULL, &avi_out->ByteBuffer)))
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{
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avi_out->valid = false;
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return;
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}
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avi_out->sound_samples += num_samples;
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avi_out->tBytes += avi_out->ByteBuffer;
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}
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#ifdef __cplusplus
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}
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#endif
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