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matroska-demux: make up an OpusHead block if possible when missing

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=761489
This commit is contained in:
Vincent Penquerc'h 2016-02-04 15:59:04 +00:00 committed by Sebastian Dröge
parent 565607107f
commit 6861d11c49
1 changed files with 30 additions and 1 deletions
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31
gst/matroska/matroska-demux.c
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@ -5614,8 +5614,37 @@ gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext *
caps = gst_codec_utils_opus_create_caps_from_header (tmp, NULL);
gst_buffer_unref (tmp);
*codec_name = g_strdup ("Opus");
} else if (context->codec_priv_size == 0) {
GST_WARNING ("No Opus codec data found, trying to create one");
if (audiocontext->channels >= 0 && audiocontext->channels <= 2) {
guint8 streams, coupled, channels;
guint32 samplerate;
samplerate =
audiocontext->samplerate == 0 ? 48000 : audiocontext->samplerate;
channels = audiocontext->channels == 0 ? 2 : audiocontext->channels;
if (channels == 1) {
streams = 1;
coupled = 0;
} else {
streams = 1;
coupled = 1;
}
caps =
gst_codec_utils_opus_create_caps (samplerate, channels, 0, streams,
coupled, NULL);
if (caps) {
*codec_name = g_strdup ("Opus");
} else {
GST_WARNING ("Failed to create Opus caps from audio context");
}
} else {
GST_WARNING ("No Opus codec data, and not enough info to create one");
}
} else {
GST_WARNING ("Invalid Opus codec data size");
GST_WARNING ("Invalid Opus codec data size (got %" G_GSIZE_FORMAT
", expected 19)", context->codec_priv_size);
}
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_ACM)) {
gst_riff_strf_auds auds;