Result SoundSourceWV::tryOpen(const AudioSourceConfig& audioSrcCfg) { DEBUG_ASSERT(!m_wpc); char msg[80]; // hold possible error message int openFlags = OPEN_WVC | OPEN_NORMALIZE; if ((kChannelCountMono == audioSrcCfg.channelCountHint) || (kChannelCountStereo == audioSrcCfg.channelCountHint)) { openFlags |= OPEN_2CH_MAX; } m_wpc = WavpackOpenFileInput( getLocalFileNameBytes().constData(), msg, openFlags, 0); if (!m_wpc) { qDebug() << "SSWV::open: failed to open file : " << msg; return ERR; } setChannelCount(WavpackGetReducedChannels(m_wpc)); setFrameRate(WavpackGetSampleRate(m_wpc)); setFrameCount(WavpackGetNumSamples(m_wpc)); if (WavpackGetMode(m_wpc) & MODE_FLOAT) { m_sampleScaleFactor = CSAMPLE_PEAK; } else { const int bitsPerSample = WavpackGetBitsPerSample(m_wpc); const uint32_t wavpackPeakSampleValue = uint32_t(1) << (bitsPerSample - 1); m_sampleScaleFactor = CSAMPLE_PEAK / CSAMPLE(wavpackPeakSampleValue); } return OK; }
Result SoundSourceSndFile::tryOpen(const AudioSourceConfig& /*audioSrcCfg*/) { DEBUG_ASSERT(!m_pSndFile); SF_INFO sfInfo; #ifdef __WINDOWS__ // Pointer valid until string changed const QString fileName(getLocalFileName()); LPCWSTR lpcwFilename = (LPCWSTR) fileName.utf16(); m_pSndFile = sf_wchar_open(lpcwFilename, SFM_READ, &sfInfo); #else memset(&sfInfo, 0, sizeof(sfInfo)); m_pSndFile = sf_open(getLocalFileNameBytes().constData(), SFM_READ, &sfInfo); #endif if (!m_pSndFile) { // sf_format_check is only for writes qWarning() << "Error opening libsndfile file:" << getUrlString() << sf_strerror(m_pSndFile); return ERR; } if (sf_error(m_pSndFile) > 0) { qWarning() << "Error opening libsndfile file:" << getUrlString() << sf_strerror(m_pSndFile); return ERR; } setChannelCount(sfInfo.channels); setFrameRate(sfInfo.samplerate); setFrameCount(sfInfo.frames); return OK; }
Result SoundSourceModPlug::parseTrackMetadataAndCoverArt( TrackMetadata* pTrackMetadata, QImage* /*pCoverArt*/) const { // The modplug library currently does not support reading cover-art from // modplug files -- kain88 (Oct 2014) QFile modFile(getLocalFileNameBytes()); modFile.open(QIODevice::ReadOnly); const QByteArray fileBuf(modFile.readAll()); modFile.close(); ModPlug::ModPlugFile* pModFile = ModPlug::ModPlug_Load(fileBuf.constData(), fileBuf.length()); if (NULL != pModFile) { pTrackMetadata->setComment(QString(ModPlug::ModPlug_GetMessage(pModFile))); pTrackMetadata->setTitle(QString(ModPlug::ModPlug_GetName(pModFile))); pTrackMetadata->setDuration(ModPlug::ModPlug_GetLength(pModFile) / 1000); pTrackMetadata->setBitrate(8); // not really, but fill in something... ModPlug::ModPlug_Unload(pModFile); } return pModFile ? OK : ERR; }
Result SoundSourceM4A::tryOpen(const AudioSourceConfig& audioSrcCfg) { DEBUG_ASSERT(MP4_INVALID_FILE_HANDLE == m_hFile); /* open MP4 file, check for >= ver 1.9.1 */ #if MP4V2_PROJECT_version_hex <= 0x00010901 m_hFile = MP4Read(getLocalFileNameBytes().constData(), 0); #else m_hFile = MP4Read(getLocalFileNameBytes().constData()); #endif if (MP4_INVALID_FILE_HANDLE == m_hFile) { qWarning() << "Failed to open file for reading:" << getUrlString(); return ERR; } m_trackId = findFirstAudioTrackId(m_hFile); if (MP4_INVALID_TRACK_ID == m_trackId) { qWarning() << "No AAC track found:" << getUrlString(); return ERR; } const MP4SampleId numberOfSamples = MP4GetTrackNumberOfSamples(m_hFile, m_trackId); if (0 >= numberOfSamples) { qWarning() << "Failed to read number of samples from file:" << getUrlString(); return ERR; } m_maxSampleBlockId = kSampleBlockIdMin + (numberOfSamples - 1); // Determine the maximum input size (in bytes) of a // sample block for the selected track. const u_int32_t maxSampleBlockInputSize = MP4GetTrackMaxSampleSize(m_hFile, m_trackId); m_inputBuffer.resize(maxSampleBlockInputSize, 0); DEBUG_ASSERT(NULL == m_hDecoder); // not already opened m_hDecoder = NeAACDecOpen(); if (!m_hDecoder) { qWarning() << "Failed to open the AAC decoder!"; return ERR; } NeAACDecConfigurationPtr pDecoderConfig = NeAACDecGetCurrentConfiguration( m_hDecoder); pDecoderConfig->outputFormat = FAAD_FMT_FLOAT; if ((kChannelCountMono == audioSrcCfg.channelCountHint) || (kChannelCountStereo == audioSrcCfg.channelCountHint)) { pDecoderConfig->downMatrix = 1; } else { pDecoderConfig->downMatrix = 0; } pDecoderConfig->defObjectType = LC; if (!NeAACDecSetConfiguration(m_hDecoder, pDecoderConfig)) { qWarning() << "Failed to configure AAC decoder!"; return ERR; } u_int8_t* configBuffer = NULL; u_int32_t configBufferSize = 0; if (!MP4GetTrackESConfiguration(m_hFile, m_trackId, &configBuffer, &configBufferSize)) { /* failed to get mpeg-4 audio config... this is ok. * NeAACDecInit2() will simply use default values instead. */ qWarning() << "Failed to read the MP4 audio configuration." << "Continuing with default values."; } SAMPLERATE_TYPE sampleRate; unsigned char channelCount; if (0 > NeAACDecInit2(m_hDecoder, configBuffer, configBufferSize, &sampleRate, &channelCount)) { free(configBuffer); qWarning() << "Failed to initialize the AAC decoder!"; return ERR; } else { free(configBuffer); } setChannelCount(channelCount); setFrameRate(sampleRate); setFrameCount(getFrameCountForSampleBlockId(m_maxSampleBlockId)); // Resize temporary buffer for decoded sample data const SINT sampleBufferCapacity = frames2samples(kFramesPerSampleBlock); m_sampleBuffer.resetCapacity(sampleBufferCapacity); // Invalidate current position to enforce the following // seek operation m_curFrameIndex = getMaxFrameIndex(); // (Re-)Start decoding at the beginning of the file seekSampleFrame(getMinFrameIndex()); return OK; }