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audiomixer: Allow downstream caps with a non-default channel-mask

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Instead of failing, take the downstream channel mask if the channel
count is 1.
This commit is contained in:
Olivier Crête 2015-04-01 20:32:41 -04:00
parent 90028d68fe
commit 34a921c31b
2 changed files with 29 additions and 2 deletions
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28
gst/audiomixer/gstaudiomixer.c
View file

@ -350,11 +350,12 @@ static gboolean
gst_audiomixer_setcaps (GstAudioMixer * audiomixer, GstPad * pad,
GstCaps * orig_caps)
{
GstAggregator *agg = GST_AGGREGATOR (audiomixer);
GstAudioAggregator *aagg = GST_AUDIO_AGGREGATOR (audiomixer);
GstCaps *caps;
GstAudioInfo info;
GstStructure *s;
gint channels;
gint channels = 0;
gboolean ret;
caps = gst_caps_copy (orig_caps);
@ -367,6 +368,31 @@ gst_audiomixer_setcaps (GstAudioMixer * audiomixer, GstPad * pad,
if (!gst_audio_info_from_caps (&info, caps))
goto invalid_format;
if (channels == 1) {
GstCaps *filter;
GstCaps *downstream_caps;
if (audiomixer->filter_caps)
filter = gst_caps_intersect_full (caps, audiomixer->filter_caps,
GST_CAPS_INTERSECT_FIRST);
else
filter = gst_caps_ref (caps);
downstream_caps = gst_pad_peer_query_caps (agg->srcpad, filter);
gst_caps_unref (filter);
if (downstream_caps) {
gst_caps_unref (caps);
caps = downstream_caps;
if (gst_caps_is_empty (caps)) {
gst_caps_unref (caps);
return FALSE;
}
caps = gst_caps_fixate (caps);
}
}
GST_OBJECT_LOCK (audiomixer);
/* don't allow reconfiguration for now; there's still a race between the
* different upstream threads doing query_caps + accept_caps + sending

3
tests/check/elements/audiomixer.c
View file

@ -89,7 +89,8 @@ GST_START_TEST (test_filter_caps)
filter_caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, GST_AUDIO_NE (F32),
"layout", G_TYPE_STRING, "interleaved",
"rate", G_TYPE_INT, 44100, "channels", G_TYPE_INT, 1, NULL);
"rate", G_TYPE_INT, 44100, "channels", G_TYPE_INT, 1,
"channel-mask", GST_TYPE_BITMASK, 0x04, NULL);
/* build pipeline */
pipeline = gst_pipeline_new ("pipeline");