bool CMusicInfoTagLoaderFlac::Load(const CStdString& strFileName, CMusicInfoTag& tag)
{
try
{
// retrieve the Flac Tag info from strFileName
// and put it in tag
CFlacTag myTag;
if (myTag.Read(strFileName))
{
myTag.GetMusicInfoTag(tag);
}
return tag.Loaded();
}
catch (...)
{
CLog::Log(LOGERROR, "Tag loader flac: exception in file %s", strFileName.c_str());
}
tag.SetLoaded(false);
return false;
}
bool FLACCodec::Init(const CStdString &strFile, unsigned int filecache)
{
if (!m_dll.Load())
return false;
if (!m_file.Open(strFile, READ_CACHED))
return false;
m_pFlacDecoder=m_dll.FLAC__stream_decoder_new();
if (!m_pFlacDecoder)
{
CLog::Log(LOGERROR, "FLACCodec: Error creating decoder");
return false;
}
if (m_dll.FLAC__stream_decoder_init_stream(m_pFlacDecoder, DecoderReadCallback,
DecoderSeekCallback,
DecoderTellCallback,
DecoderLengthCallback,
DecoderEofCallback,
DecoderWriteCallback,
DecoderMetadataCallback,
DecoderErrorCallback,
this) != FLAC__STREAM_DECODER_INIT_STATUS_OK)
{
CLog::Log(LOGERROR, "FLACCodec: Error initializing decoder");
FreeDecoder();
return false;
}
// Process metadata like number of channels...
if (!m_dll.FLAC__stream_decoder_process_until_end_of_metadata(m_pFlacDecoder))
{
CLog::Log(LOGERROR, "FLACCodec: Error while processing metadata");
FreeDecoder();
return false;
}
// These are filled by the metadata callback
if (m_SampleRate==0 || m_Channels==0 || m_BitsPerSample==0 || m_TotalTime==0 || m_MaxFrameSize==0)
{
CLog::Log(LOGERROR, "FLACCodec: Can't get stream info, SampleRate=%i, Channels=%i, BitsPerSample=%i, TotalTime=%llu, MaxFrameSize=%i", m_SampleRate, m_Channels, m_BitsPerSample, m_TotalTime, m_MaxFrameSize);
FreeDecoder();
return false;
}
// Extract ReplayGain info
CFlacTag tag;
if (tag.Read(strFile))
m_replayGain=tag.GetReplayGain();
m_Bitrate = (int)((m_file.GetLength() * 8) / (m_TotalTime/1000));
if (m_pBuffer)
{
delete[] m_pBuffer;
m_pBuffer=NULL;
}
// allocate the buffer to hold the audio data,
// it is 5 times bigger then a single decoded frame
m_pBuffer=new BYTE[m_MaxFrameSize*5];
return true;
}
