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flacdec: Take samplerate, width and number of channels from the STREAMINFO

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...and update it from the frame headers if it should change for some reason.

This allows playback of files with odd sample rates.
This commit is contained in:
Sebastian Dröge 2010-03-26 14:16:39 +01:00
parent 2873c3ad6b
commit 2e42e82037
1 changed files with 26 additions and 2 deletions
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28
ext/flac/gstflacdec.c
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@ -559,16 +559,29 @@ gst_flac_dec_metadata_cb (const FLAC__StreamDecoder * decoder,
switch (metadata->type) {
case FLAC__METADATA_TYPE_STREAMINFO:{
gint64 samples;
guint depth;
samples = metadata->data.stream_info.total_samples;
flacdec->min_blocksize = metadata->data.stream_info.min_blocksize;
flacdec->max_blocksize = metadata->data.stream_info.max_blocksize;
flacdec->sample_rate = metadata->data.stream_info.sample_rate;
flacdec->depth = metadata->data.stream_info.bits_per_sample;
flacdec->depth = depth = metadata->data.stream_info.bits_per_sample;
flacdec->channels = metadata->data.stream_info.channels;
if (depth < 9)
flacdec->width = 8;
else if (depth < 17)
flacdec->width = 16;
else
flacdec->width = 32;
GST_DEBUG_OBJECT (flacdec, "blocksize: min=%u, max=%u",
flacdec->min_blocksize, flacdec->max_blocksize);
GST_DEBUG_OBJECT (flacdec, "sample rate: %u, channels: %u",
flacdec->sample_rate, flacdec->channels);
GST_DEBUG_OBJECT (flacdec, "depth: %u, width: %u", flacdec->depth,
flacdec->width);
/* Only scan for last block in pull-mode, since it uses pull_range() */
if (samples == 0 && !flacdec->streaming) {
@ -792,6 +805,7 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
GstBuffer *outbuf;
guint depth = frame->header.bits_per_sample;
guint width;
guint sample_rate = frame->header.sample_rate;
guint channels = frame->header.channels;
guint samples = frame->header.blocksize;
guint j, i;
@ -846,6 +860,16 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
goto done;
}
if (sample_rate == 0) {
if (flacdec->sample_rate != 0) {
sample_rate = flacdec->sample_rate;
} else {
GST_ERROR_OBJECT (flacdec, "unknown sample rate");
ret = GST_FLOW_ERROR;
goto done;
}
}
if (!GST_PAD_CAPS (flacdec->srcpad)) {
GstCaps *caps;
@ -869,7 +893,7 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
flacdec->depth = depth;
flacdec->width = width;
flacdec->channels = channels;
flacdec->sample_rate = frame->header.sample_rate;
flacdec->sample_rate = sample_rate;
gst_pad_set_caps (flacdec->srcpad, caps);
gst_caps_unref (caps);