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qtdemux: Export AAC profile and level in caps

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This exports the AAC profile and level in caps for use as metadata and
(eventually) for more fine-grained selection of decoders at
caps-negotiation time. (Doesn't work for HE-AAC yet though.)

https://bugzilla.gnome.org/show_bug.cgi?id=612313
This commit is contained in:
Arun Raghavan 2010-04-30 14:06:27 +05:30 committed by Tim-Philipp Müller
parent 78e4a260b4
commit 845a3d6c3d
2 changed files with 13 additions and 10 deletions
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1
gst/qtdemux/Makefile.am
View file

@ -8,6 +8,7 @@ libgstqtdemux_la_LIBADD = \
-lgstaudio-@GST_MAJORMINOR@ \
-lgstrtp-@GST_MAJORMINOR@ \
-lgsttag-@GST_MAJORMINOR@ \
-lgstpbutils-@GST_MAJORMINOR@ \
$(GST_BASE_LIBS) $(GST_LIBS) $(ZLIB_LIBS)
libgstqtdemux_la_LDFLAGS = ${GST_PLUGIN_LDFLAGS}
libgstqtdemux_la_SOURCES = quicktime.c gstrtpxqtdepay.c \

16
gst/qtdemux/qtdemux.c
View file

@ -63,6 +63,8 @@
#include "gst/riff/riff-media.h"
#include "gst/riff/riff-read.h"
#include <gst/pbutils/pbutils.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -7495,10 +7497,7 @@ 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;
int rates[] = { 96000, 88200, 64000, 48000, 44100, 32000,
24000, 22050, 16000, 12000, 11025, 8000
};
guint channels, rateindex, rate;
channels = (data_ptr[1] & 0x7f) >> 3;
if (channels <= 7) {
@ -7506,9 +7505,12 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
}
rateindex = ((data_ptr[0] & 0x7) << 1) | ((data_ptr[1] & 0x80) >> 7);
if (rateindex < sizeof (rates) / sizeof (*rates)) {
stream->rate = rates[rateindex];
}
rate = gst_codec_utils_aac_get_sample_rate_from_index (rateindex);
if (rate > 0)
stream->rate = rate;
gst_codec_utils_aac_caps_set_level_and_profile (stream->caps,
data_ptr, data_len);
}
break;
case 0x60: /* MPEG-2, various profiles */