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qtdemux: Add the function to get channels and sample rate for AAC

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Add aac_get_channels and sample_rate function to get these value for
AAC.

https://bugzilla.gnome.org/show_bug.cgi?id=749110
This commit is contained in:
Jimmy Ohn 2016-03-22 10:43:45 +09:00 committed by Sebastian Dröge
parent e47ae99363
commit 84f436f122
1 changed files with 4 additions and 9 deletions
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13
gst/isomp4/qtdemux.c
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@ -12169,18 +12169,13 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
* wrong. */
/* Only do so for basic setup without HE-AAC extension */
if (data_ptr && data_len == 2) {
guint channels, rateindex, rate;
guint channels, rate;
/* FIXME: add gst_codec_utils_aac_get_{channels|sample_rate}()? */
channels = (data_ptr[1] & 0x7f) >> 3;
if (channels > 0 && channels < 7) {
channels = gst_codec_utils_aac_get_channels (data_ptr, data_len);
if (channels > 0)
stream->n_channels = channels;
} else if (channels == 7) {
stream->n_channels = 8;
}
rateindex = ((data_ptr[0] & 0x7) << 1) | ((data_ptr[1] & 0x80) >> 7);
rate = gst_codec_utils_aac_get_sample_rate_from_index (rateindex);
rate = gst_codec_utils_aac_get_sample_rate (data_ptr, data_len);
if (rate > 0)
stream->rate = rate;
}