mirror of
https://github.com/mpv-player/mpv
synced 2024-12-12 18:06:18 +00:00
220 lines
7.8 KiB
C
220 lines
7.8 KiB
C
// ACM audio and VfW video codecs initialization
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// based on the avifile library [http://divx.euro.ru]
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static char* a_in_buffer=NULL;
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static int a_in_buffer_len=0;
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static int a_in_buffer_size=0;
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int init_audio_codec(){
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HRESULT ret;
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WAVEFORMATEX *in_fmt=(WAVEFORMATEX*)&avi_header.wf_ext;
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unsigned long srcsize=0;
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if(verbose) printf("======= Win32 (ACM) AUDIO Codec init =======\n");
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avi_header.srcstream=NULL;
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// if(in_fmt->nSamplesPerSec==0){ printf("Bad WAVE header!\n");exit(1); }
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// MSACM_RegisterAllDrivers();
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avi_header.wf.nChannels=in_fmt->nChannels;
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avi_header.wf.nSamplesPerSec=in_fmt->nSamplesPerSec;
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avi_header.wf.nAvgBytesPerSec=2*avi_header.wf.nSamplesPerSec*avi_header.wf.nChannels;
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avi_header.wf.wFormatTag=WAVE_FORMAT_PCM;
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avi_header.wf.nBlockAlign=2*in_fmt->nChannels;
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avi_header.wf.wBitsPerSample=16;
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avi_header.wf.cbSize=0;
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win32_codec_name = avi_header.audio_codec;
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ret=acmStreamOpen(&avi_header.srcstream,(HACMDRIVER)NULL,
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in_fmt,&avi_header.wf,
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NULL,0,0,0);
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if(ret){
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if(ret==ACMERR_NOTPOSSIBLE)
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printf("ACM_Decoder: Unappropriate audio format\n");
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else
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printf("ACM_Decoder: acmStreamOpen error %d", ret);
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avi_header.srcstream=NULL;
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return 0;
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}
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if(verbose) printf("Audio codec opened OK! ;-)\n");
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srcsize=in_fmt->nBlockAlign;
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acmStreamSize(avi_header.srcstream, srcsize, &srcsize, ACM_STREAMSIZEF_SOURCE);
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if(srcsize<OUTBURST) srcsize=OUTBURST;
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avi_header.audio_out_minsize=srcsize; // audio output min. size
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if(verbose) printf("Audio ACM output buffer min. size: %d\n",srcsize);
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acmStreamSize(avi_header.srcstream, srcsize, &srcsize, ACM_STREAMSIZEF_DESTINATION);
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avi_header.audio_in_minsize=srcsize; // audio input min. size
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if(verbose) printf("Audio ACM input buffer min. size: %d\n",srcsize);
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a_in_buffer_size=avi_header.audio_in_minsize;
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a_in_buffer=malloc(a_in_buffer_size);
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a_in_buffer_len=0;
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return 1;
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}
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int acm_decode_audio(void* a_buffer,int len){
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ACMSTREAMHEADER ash;
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HRESULT hr;
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DWORD srcsize=0;
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acmStreamSize(avi_header.srcstream,len , &srcsize, ACM_STREAMSIZEF_DESTINATION);
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if(verbose>=3)printf("acm says: srcsize=%d (buffsize=%d) out_size=%d\n",srcsize,a_in_buffer_size,len);
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// if(srcsize==0) srcsize=((WAVEFORMATEX *)&avi_header.wf_ext)->nBlockAlign;
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if(srcsize>a_in_buffer_size) srcsize=a_in_buffer_size; // !!!!!!
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if(a_in_buffer_len<srcsize){
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a_in_buffer_len+=
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demux_read_data(d_audio,&a_in_buffer[a_in_buffer_len],
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srcsize-a_in_buffer_len);
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}
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memset(&ash, 0, sizeof(ash));
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ash.cbStruct=sizeof(ash);
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ash.fdwStatus=0;
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ash.dwUser=0;
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ash.pbSrc=a_in_buffer;
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ash.cbSrcLength=a_in_buffer_len;
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ash.pbDst=a_buffer;
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ash.cbDstLength=len;
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hr=acmStreamPrepareHeader(avi_header.srcstream,&ash,0);
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if(hr){
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printf("ACM_Decoder: acmStreamPrepareHeader error %d\n",hr);
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return -1;
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}
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hr=acmStreamConvert(avi_header.srcstream,&ash,0);
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if(hr){
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printf("ACM_Decoder: acmStreamConvert error %d\n",hr);
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return -1;
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}
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//printf("ACM convert %d -> %d (buf=%d)\n",ash.cbSrcLengthUsed,ash.cbDstLengthUsed,a_in_buffer_len);
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if(ash.cbSrcLengthUsed>=a_in_buffer_len){
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a_in_buffer_len=0;
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} else {
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a_in_buffer_len-=ash.cbSrcLengthUsed;
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memcpy(a_in_buffer,&a_in_buffer[ash.cbSrcLengthUsed],a_in_buffer_len);
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}
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len=ash.cbDstLengthUsed;
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hr=acmStreamUnprepareHeader(avi_header.srcstream,&ash,0);
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if(hr){
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printf("ACM_Decoder: acmStreamUnprepareHeader error %d\n",hr);
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}
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return len;
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}
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int init_video_codec(int outfmt){
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HRESULT ret;
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if(verbose) printf("======= Win32 (VFW) VIDEO Codec init =======\n");
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memset(&avi_header.o_bih, 0, sizeof(BITMAPINFOHEADER));
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avi_header.o_bih.biSize = sizeof(BITMAPINFOHEADER);
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win32_codec_name = avi_header.video_codec;
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avi_header.hic = ICOpen( 0x63646976, avi_header.bih.biCompression, ICMODE_FASTDECOMPRESS);
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// avi_header.hic = ICOpen( 0x63646976, avi_header.bih.biCompression, ICMODE_DECOMPRESS);
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if(!avi_header.hic){
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printf("ICOpen failed! unknown codec / wrong parameters?\n");
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return 0;
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}
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// avi_header.bih.biBitCount=32;
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ret = ICDecompressGetFormat(avi_header.hic, &avi_header.bih, &avi_header.o_bih);
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if(ret){
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printf("ICDecompressGetFormat failed: Error %d\n", ret);
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return 0;
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}
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if(verbose) printf("ICDecompressGetFormat OK\n");
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// printf("ICM_DECOMPRESS_QUERY=0x%X",ICM_DECOMPRESS_QUERY);
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// avi_header.o_bih.biWidth=avi_header.bih.biWidth;
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// avi_header.o_bih.biCompression = 0x32315659; // mmioFOURCC('U','Y','V','Y');
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// ret=ICDecompressGetFormatSize(avi_header.hic,&avi_header.o_bih);
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// avi_header.o_bih.biCompression = 3; //0x32315659;
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// avi_header.o_bih.biCompression = mmioFOURCC('U','Y','V','Y');
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// avi_header.o_bih.biCompression = mmioFOURCC('U','Y','V','Y');
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// avi_header.o_bih.biCompression = mmioFOURCC('Y','U','Y','2');
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// avi_header.o_bih.biPlanes=3;
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// avi_header.o_bih.biBitCount=16;
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if(outfmt==IMGFMT_YUY2)
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avi_header.o_bih.biBitCount=16;
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else
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avi_header.o_bih.biBitCount=outfmt&0xFF;// //24;
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avi_header.o_bih.biSizeImage=avi_header.o_bih.biWidth*avi_header.o_bih.biHeight*(avi_header.o_bih.biBitCount/8);
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if(!avi_header.flipped)
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avi_header.o_bih.biHeight=-avi_header.bih.biHeight; // flip image!
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if(outfmt==IMGFMT_YUY2 && !avi_header.yuv_hack_needed)
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avi_header.o_bih.biCompression = mmioFOURCC('Y','U','Y','2');
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// avi_header.o_bih.biCompression = mmioFOURCC('U','Y','V','Y');
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if(verbose) {
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printf("Starting decompression, format:\n");
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printf(" biSize %d\n", avi_header.bih.biSize);
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printf(" biWidth %d\n", avi_header.bih.biWidth);
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printf(" biHeight %d\n", avi_header.bih.biHeight);
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printf(" biPlanes %d\n", avi_header.bih.biPlanes);
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printf(" biBitCount %d\n", avi_header.bih.biBitCount);
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printf(" biCompression %d='%.4s'\n", avi_header.bih.biCompression, &avi_header.bih.biCompression);
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printf(" biSizeImage %d\n", avi_header.bih.biSizeImage);
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printf("Dest fmt:\n");
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printf(" biSize %d\n", avi_header.o_bih.biSize);
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printf(" biWidth %d\n", avi_header.o_bih.biWidth);
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printf(" biHeight %d\n", avi_header.o_bih.biHeight);
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printf(" biPlanes %d\n", avi_header.o_bih.biPlanes);
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printf(" biBitCount %d\n", avi_header.o_bih.biBitCount);
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printf(" biCompression %d='%.4s'\n", avi_header.o_bih.biCompression, &avi_header.o_bih.biCompression);
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printf(" biSizeImage %d\n", avi_header.o_bih.biSizeImage);
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}
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ret = ICDecompressQuery(avi_header.hic, &avi_header.bih, &avi_header.o_bih);
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if(ret){
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printf("ICDecompressQuery failed: Error %d\n", ret);
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return 0;
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}
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if(verbose) printf("ICDecompressQuery OK\n");
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ret = ICDecompressBegin(avi_header.hic, &avi_header.bih, &avi_header.o_bih);
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if(ret){
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printf("ICDecompressBegin failed: Error %d\n", ret);
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return 0;
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}
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#if 0
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//avi_header.hic
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//ICSendMessage(HIC hic,unsigned int msg,long lParam1,long lParam2)
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{ int i;
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for(i=73;i<256;i++){
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printf("Calling ICM_USER+%d function...",i);fflush(stdout);
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ret = ICSendMessage(avi_header.hic,ICM_USER+i,NULL,NULL);
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printf(" ret=%d\n",ret);
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}
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}
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#endif
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avi_header.our_out_buffer = malloc(avi_header.o_bih.biSizeImage);
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if(!avi_header.our_out_buffer){
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printf("not enough memory for decoded picture buffer (%d bytes)\n", avi_header.o_bih.biSizeImage);
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return 0;
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}
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if(outfmt==IMGFMT_YUY2 && avi_header.yuv_hack_needed)
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avi_header.o_bih.biCompression = mmioFOURCC('Y','U','Y','2');
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// avi_header.our_in_buffer=malloc(avi_header.video.dwSuggestedBufferSize); // FIXME!!!!
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if(verbose) printf("VIDEO CODEC Init OK!!! ;-)\n");
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return 1;
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}
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