int AacPcm::getInfos(MediaInfo *infos) { DWORD tmp; infos->setTitle(Std::filename(infos->getFilename())); if(hDecoder) infos->setInfo(StringPrintf("%ihz %ibps %ich", dwSamprate, 16, dwChannels)); else { svc_fileReader *reader = infos->getReader(); if (!reader) ERROR_getInfos("File doesn\'t exists") buffer=new BYTE[AAC_BUF_SIZE]; if(!buffer) ERROR_getInfos("Error: buffer=NULL") lSize=reader->getLength(); if(lSize>AAC_BUF_SIZE) tmp=AAC_BUF_SIZE; else tmp=lSize; bytes_into_buffer=bytes_read=reader->read((char *)buffer, tmp); if(bytes_read!=tmp) ERROR_getInfos("Read failed!") hDecoder = faacDecOpen(); faacDecConfigurationPtr config; config = faacDecGetCurrentConfiguration(hDecoder); config->defSampleRate = 44100; faacDecSetConfiguration(hDecoder, config); if((bytes_consumed=faacDecInit(hDecoder, buffer, &dwSamprate, &dwChannels))<0) ERROR_getInfos("faacDecInit failed!") else infos->setInfo(StringPrintf("%ihz %ibps %ich", dwSamprate, 16, dwChannels)); bytes_into_buffer-=bytes_consumed; bufout=new short[1024*dwChannels]; if(!bufout) ERROR_getInfos("Error: bufout=NULL") // fil=fopen("c:\\prova.wav","wb"); } return 0; }
int AacPcm::getInfos(MediaInfo *infos) { if(!infos) return 1; if(hDecoder) { SHOW_INFO() return 0; } IsAAC=strcmpi(infos->getFilename()+lstrlen(infos->getFilename())-4,".aac")==0; if(!IsAAC) // MP4 file --------------------------------------------------------------------- { MP4Duration length; unsigned __int32 buffer_size; mp4AudioSpecificConfig mp4ASC; if(!(mp4File=MP4Read(infos->getFilename(), 0))) ERROR_getInfos("Error opening file"); if((track=GetAACTrack(mp4File))<0) ERROR_getInfos(0); //"Unable to find correct AAC sound track"); if(!(hDecoder=faacDecOpen())) ERROR_getInfos("Error initializing decoder library"); MP4GetTrackESConfiguration(mp4File, track, (unsigned __int8 **)&buffer, &buffer_size); if(!buffer) ERROR_getInfos("MP4GetTrackESConfiguration"); AudioSpecificConfig(buffer, buffer_size, &mp4ASC); Channels=mp4ASC.channelsConfiguration; if(faacDecInit2(hDecoder, buffer, buffer_size, &Samplerate, &Channels) < 0) ERROR_getInfos("Error initializing decoder library"); FREE_ARRAY(buffer); length=MP4GetTrackDuration(mp4File, track); len_ms=(DWORD)MP4ConvertFromTrackDuration(mp4File, track, length, MP4_MSECS_TIME_SCALE); file_info.bitrate=MP4GetTrackBitRate(mp4File, track); file_info.version=MP4GetTrackAudioType(mp4File, track)==MP4_MPEG4_AUDIO_TYPE ? 4 : 2; numSamples=MP4GetTrackNumberOfSamples(mp4File, track); sampleId=1; } else // AAC file ------------------------------------------------------------------------------ { DWORD read, tmp; BYTE Channels4Raw=0; if(!(aacFile=fopen(infos->getFilename(),"rb"))) ERROR_getInfos("Error opening file"); // use bufferized stream setvbuf(aacFile,NULL,_IOFBF,32767); // get size of file fseek(aacFile, 0, SEEK_END); src_size=ftell(aacFile); fseek(aacFile, 0, SEEK_SET); if(!(buffer=(BYTE *)malloc(FAAD_STREAMSIZE))) ERROR_getInfos("Memory allocation error: buffer") tmp=src_size<FAAD_STREAMSIZE ? src_size : FAAD_STREAMSIZE; read=fread(buffer, 1, tmp, aacFile); if(read==tmp) { bytes_read=read; bytes_into_buffer=read; } else ERROR_getInfos("Read failed!") if(tagsize=id3v2_tag(buffer)) { if(tagsize>(long)src_size) ERROR_getInfos("Corrupt stream!"); if(tagsize<bytes_into_buffer) { bytes_into_buffer-=tagsize; memcpy(buffer,buffer+tagsize,bytes_into_buffer); } else { bytes_read=tagsize; bytes_into_buffer=0; if(tagsize>bytes_into_buffer) fseek(aacFile, tagsize, SEEK_SET); } if(src_size<bytes_read+FAAD_STREAMSIZE-bytes_into_buffer) tmp=src_size-bytes_read; else tmp=FAAD_STREAMSIZE-bytes_into_buffer; read=fread(buffer+bytes_into_buffer, 1, tmp, aacFile); if(read==tmp) { bytes_read+=read; bytes_into_buffer+=read; } else ERROR_getInfos("Read failed!"); } if(get_AAC_format((char *)infos->getFilename(), &file_info, &seek_table, &seek_table_length, 0)) ERROR_getInfos("get_AAC_format"); IsSeekable=file_info.headertype==ADTS && seek_table && seek_table_length>0; BlockSeeking=!IsSeekable; if(!(hDecoder=faacDecOpen())) ERROR_getInfos("Can't open library"); if(file_info.headertype==RAW) { faacDecConfiguration config; config.defSampleRate=atoi(cfg_samplerate); switch(cfg_profile[1]) { case 'a': config.defObjectType=MAIN; break; case 'o': config.defObjectType=LOW; break; case 'S': config.defObjectType=SSR; break; case 'T': config.defObjectType=LTP; break; } switch(cfg_bps[0]) { case '1': config.outputFormat=FAAD_FMT_16BIT; break; case '2': config.outputFormat=FAAD_FMT_24BIT; break; case '3': config.outputFormat=FAAD_FMT_32BIT; break; case 'F': config.outputFormat=FAAD_FMT_24BIT; break; } faacDecSetConfiguration(hDecoder, &config); if(!FindBitrate) { AacPcm *NewInst; if(!(NewInst=new AacPcm())) ERROR_getInfos("Memory allocation error: NewInst"); NewInst->FindBitrate=TRUE; if(NewInst->getInfos(infos)) ERROR_getInfos(0); Channels4Raw=NewInst->frameInfo.channels; file_info.bitrate=NewInst->file_info.bitrate*Channels4Raw; delete NewInst; } else { DWORD Samples, BytesConsumed; if((bytes_consumed=faacDecInit(hDecoder,buffer,bytes_into_buffer,&Samplerate,&Channels))<0) ERROR_getInfos("Can't init library"); bytes_into_buffer-=bytes_consumed; if(!processData(infos,0,0)) ERROR_getInfos(0); Samples=frameInfo.samples/sizeof(short); BytesConsumed=frameInfo.bytesconsumed; processData(infos,0,0); if(BytesConsumed<frameInfo.bytesconsumed) BytesConsumed=frameInfo.bytesconsumed; file_info.bitrate=(BytesConsumed*8*Samplerate)/Samples; if(!file_info.bitrate) file_info.bitrate=1000; // try to continue decoding return 0; } } if((bytes_consumed=faacDecInit(hDecoder, buffer, bytes_into_buffer, &Samplerate, &Channels))<0) ERROR_getInfos("faacDecInit failed!") bytes_into_buffer-=bytes_consumed; if(Channels4Raw) Channels=Channels4Raw; len_ms=(DWORD)((1000*((float)src_size*8))/file_info.bitrate); } SHOW_INFO(); return 0; }