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asfdemux: Add byte rate based bitrate tag in case there are no audio props

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=769418
This commit is contained in:
Carlos Rafael Giani 2016-08-02 13:38:25 +02:00 committed by Sebastian Dröge
parent 9f51f72b37
commit 975f147abe
1 changed files with 21 additions and 0 deletions
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21
gst/asfdemux/gstasfdemux.c
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@ -2625,6 +2625,27 @@ gst_asf_demux_add_audio_stream (GstASFDemux * demux,
g_free (codec_name);
}
if (audio->byte_rate > 0) {
/* Some ASF files have no bitrate props object (often seen with
* ASF files that contain raw audio data). Example files can
* be generated with FFmpeg (tested with v2.8.6), like this:
*
* ffmpeg -i sine-wave.wav -c:a pcm_alaw file.asf
*
* In this case, if audio->byte_rate is nonzero, use that as
* the bitrate. */
guint bitrate = audio->byte_rate * 8;
if (tags == NULL)
tags = gst_tag_list_new_empty ();
/* Add bitrate, but only if there is none set already, since
* this is just a fallback in case there is no bitrate tag
* already present */
gst_tag_list_add (tags, GST_TAG_MERGE_KEEP, GST_TAG_BITRATE, bitrate, NULL);
}
if (extradata)
gst_buffer_unref (extradata);