Commit 33584480 authored by Matthew Waters's avatar Matthew Waters 🐨

glmixer: override the caps query in order to 'convert' capsfeatures

Otherwise, it is only possible for the sink pads and the src pads to
have the exact same caps features.  We can convert from any feature
to another feature so support that.
parent 6687d397
......@@ -287,6 +287,37 @@ gst_gl_mixer_pad_sink_acceptcaps (GstPad * pad, GstGLMixer * mix,
return ret;
static GstCaps *
gst_gl_mixer_pad_sink_getcaps (GstPad * pad, GstGLMixer * mix, GstCaps * filter)
GstCaps *srccaps;
GstCaps *template_caps;
GstCaps *filtered_caps;
GstCaps *returned_caps;
gboolean had_current_caps = TRUE;
template_caps = gst_pad_get_pad_template_caps (pad);
srccaps = gst_pad_get_current_caps (pad);
if (srccaps == NULL) {
had_current_caps = FALSE;
srccaps = template_caps;
filtered_caps = srccaps;
if (filter)
filtered_caps = gst_caps_intersect (srccaps, filter);
returned_caps = gst_caps_intersect (filtered_caps, template_caps);
gst_caps_unref (srccaps);
if (filter)
gst_caps_unref (filtered_caps);
if (had_current_caps)
gst_caps_unref (template_caps);
return returned_caps;
static gboolean
gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
GstQuery * query)
......@@ -297,6 +328,17 @@ gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
switch (GST_QUERY_TYPE (query)) {
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_gl_mixer_pad_sink_getcaps (GST_PAD (bpad), mix, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
GstCaps *caps;
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