static gboolean
gst_musepack_stream_init (GstMusepackDec * musepackdec)
{
mpc_streaminfo i;
GstTagList *tags;
GstCaps *caps;
gchar *stream_id;
/* set up reading */
gst_musepack_init_reader (musepackdec->r, musepackdec);
musepackdec->d = mpc_demux_init (musepackdec->r);
if (!musepackdec->d) {
GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
return FALSE;
}
mpc_demux_get_info (musepackdec->d, &i);
stream_id = gst_pad_create_stream_id (musepackdec->srcpad,
GST_ELEMENT_CAST (musepackdec), NULL);
gst_pad_push_event (musepackdec->srcpad,
gst_event_new_stream_start (stream_id));
g_free (stream_id);
/* capsnego */
caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, GST_MPC_FORMAT,
"layout", G_TYPE_STRING, "interleaved",
"channels", G_TYPE_INT, i.channels,
"rate", G_TYPE_INT, i.sample_freq, NULL);
gst_pad_use_fixed_caps (musepackdec->srcpad);
if (!gst_pad_set_caps (musepackdec->srcpad, caps)) {
GST_ELEMENT_ERROR (musepackdec, CORE, NEGOTIATION, (NULL), (NULL));
return FALSE;
}
g_atomic_int_set (&musepackdec->bps, 4 * i.channels);
g_atomic_int_set (&musepackdec->rate, i.sample_freq);
musepackdec->segment.position = 0;
musepackdec->segment.duration = mpc_streaminfo_get_length_samples (&i);
/* send basic tags */
tags = gst_tag_list_new_empty ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, "Musepack", NULL);
if (i.encoder[0] != '\0' && i.encoder_version > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_ENCODER, i.encoder,
GST_TAG_ENCODER_VERSION, i.encoder_version, NULL);
}
if (i.bitrate > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, i.bitrate, NULL);
} else if (i.average_bitrate > 0.0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, (guint) i.average_bitrate, NULL);
}
if (i.gain_title != 0 || i.gain_album != 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_GAIN, (gdouble) i.gain_title / 100.0,
GST_TAG_ALBUM_GAIN, (gdouble) i.gain_album / 100.0, NULL);
}
if (i.peak_title != 0 && i.peak_title != 32767 &&
i.peak_album != 0 && i.peak_album != 32767) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_PEAK, (gdouble) i.peak_title / 32767.0,
GST_TAG_ALBUM_PEAK, (gdouble) i.peak_album / 32767.0, NULL);
}
GST_LOG_OBJECT (musepackdec, "Posting tags: %" GST_PTR_FORMAT, tags);
gst_pad_push_event (musepackdec->srcpad, gst_event_new_tag (tags));
return TRUE;
}
bool SFB::Audio::MusepackDecoder::_Open(CFErrorRef *error)
{
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mInputSource->GetURL(), FALSE, buf, PATH_MAX))
return false;
mReader.read = read_callback;
mReader.seek = seek_callback;
mReader.tell = tell_callback;
mReader.get_size = get_size_callback;
mReader.canseek = canseek_callback;
mReader.data = this;
mDemux = mpc_demux_init(&mReader);
if(nullptr == mDemux) {
if(error) {
SFB::CFString description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Musepack file."), "");
SFB::CFString failureReason = CFCopyLocalizedString(CFSTR("Not a Musepack file"), "");
SFB::CFString recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
mpc_reader_exit_stdio(&mReader);
return false;
}
// Get input file information
mpc_streaminfo streaminfo;
mpc_demux_get_info(mDemux, &streaminfo);
mTotalFrames = mpc_streaminfo_get_length_samples(&streaminfo);
// Canonical Core Audio format
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mSampleRate = streaminfo.sample_freq;
mFormat.mChannelsPerFrame = streaminfo.channels;
mFormat.mBitsPerChannel = 8 * sizeof(float);
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
// Set up the source format
mSourceFormat.mFormatID = 'MUSE';
mSourceFormat.mSampleRate = streaminfo.sample_freq;
mSourceFormat.mChannelsPerFrame = streaminfo.channels;
mSourceFormat.mFramesPerPacket = (1 << streaminfo.block_pwr);
// Setup the channel layout
switch(streaminfo.channels) {
case 1: mChannelLayout = ChannelLayout::ChannelLayoutWithTag(kAudioChannelLayoutTag_Mono); break;
case 2: mChannelLayout = ChannelLayout::ChannelLayoutWithTag(kAudioChannelLayoutTag_Stereo); break;
case 4: mChannelLayout = ChannelLayout::ChannelLayoutWithTag(kAudioChannelLayoutTag_Quadraphonic); break;
}
// Allocate the buffer list
if(!mBufferList.Allocate(mFormat, MPC_FRAME_LENGTH)) {
if(error)
*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, nullptr);
mpc_demux_exit(mDemux), mDemux = nullptr;
mpc_reader_exit_stdio(&mReader);
return false;
}
for(UInt32 i = 0; i < mBufferList->mNumberBuffers; ++i)
mBufferList->mBuffers[i].mDataByteSize = 0;
return true;
}
uint64 CDAFReader_MPC::FrameCount(void)
{
return(mpc_streaminfo_get_length_samples(&si));
}
static gboolean
gst_musepack_stream_init (GstMusepackDec * musepackdec)
{
mpc_streaminfo i;
GstTagList *tags;
GstCaps *caps;
/* set up reading */
gst_musepack_init_reader (musepackdec->r, musepackdec);
#ifdef MPC_IS_OLD_API
/* streaminfo */
mpc_streaminfo_init (&i);
if (mpc_streaminfo_read (&i, musepackdec->r) < 0) {
GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
return FALSE;
}
/* decoding */
mpc_decoder_setup (musepackdec->d, musepackdec->r);
mpc_decoder_scale_output (musepackdec->d, 1.0);
if (!mpc_decoder_initialize (musepackdec->d, &i)) {
GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
return FALSE;
}
#else
musepackdec->d = mpc_demux_init (musepackdec->r);
if (!musepackdec->d) {
GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
return FALSE;
}
mpc_demux_get_info (musepackdec->d, &i);
#endif
/* capsnego */
caps = gst_caps_from_string (BASE_CAPS);
gst_caps_set_simple (caps,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"channels", G_TYPE_INT, i.channels,
"rate", G_TYPE_INT, i.sample_freq, NULL);
gst_pad_use_fixed_caps (musepackdec->srcpad);
if (!gst_pad_set_caps (musepackdec->srcpad, caps)) {
GST_ELEMENT_ERROR (musepackdec, CORE, NEGOTIATION, (NULL), (NULL));
return FALSE;
}
g_atomic_int_set (&musepackdec->bps, 4 * i.channels);
g_atomic_int_set (&musepackdec->rate, i.sample_freq);
gst_segment_set_last_stop (&musepackdec->segment, GST_FORMAT_DEFAULT, 0);
gst_segment_set_duration (&musepackdec->segment, GST_FORMAT_DEFAULT,
mpc_streaminfo_get_length_samples (&i));
/* send basic tags */
tags = gst_tag_list_new ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, "Musepack", NULL);
if (i.encoder[0] != '\0' && i.encoder_version > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_ENCODER, i.encoder,
GST_TAG_ENCODER_VERSION, i.encoder_version, NULL);
}
if (i.bitrate > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, i.bitrate, NULL);
} else if (i.average_bitrate > 0.0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, (guint) i.average_bitrate, NULL);
}
if (i.gain_title != 0 || i.gain_album != 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_GAIN, (gdouble) i.gain_title / 100.0,
GST_TAG_ALBUM_GAIN, (gdouble) i.gain_album / 100.0, NULL);
}
if (i.peak_title != 0 && i.peak_title != 32767 &&
i.peak_album != 0 && i.peak_album != 32767) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_PEAK, (gdouble) i.peak_title / 32767.0,
GST_TAG_ALBUM_PEAK, (gdouble) i.peak_album / 32767.0, NULL);
}
GST_LOG_OBJECT (musepackdec, "Posting tags: %" GST_PTR_FORMAT, tags);
gst_element_found_tags (GST_ELEMENT (musepackdec), tags);
return TRUE;
}
int64 FrameCount(void)
{
return(mpc_streaminfo_get_length_samples(&si));
}
