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;
}
void
mpc_decoder_initialisiere_quantisierungstabellen(mpc_decoder *d, double scale_factor)
{
mpc_decoder_scale_output(d, scale_factor);
}
void
mpc_decoder_init_quant(mpc_decoder *d, double scale_factor)
{
mpc_decoder_scale_output(d, scale_factor);
}
