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[884/906] filter: return the pad template caps in transform_caps

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We can transform from any input in our caps to any output.
With the following pipeline snippet:

  ... ! vaapidecode ! glcolorscale ! xvimagesink

GstVideoGLTextureUploadMeta was being used on both src and sink
pads causing linking to fail.  This allows the usage of the meta
on either pad without affecting whether the meta is chosen on the
other pad.
This commit is contained in:
Matthew Waters 2014-02-21 13:28:16 +11:00 committed by Tim-Philipp Müller
parent cd53fbba24
commit f292e785ce
1 changed files with 8 additions and 34 deletions
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42
gst-libs/gst/gl/gstglfilter.c
View file

@ -638,42 +638,16 @@ static GstCaps *
gst_gl_filter_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
//GstGLFilter* filter = GST_GL_FILTER (bt);
GstStructure *structure;
GstCapsFeatures *features;
GstCaps *newcaps, *result;
const GValue *par;
guint i, n;
par = NULL;
newcaps = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
if (i > 0
&& gst_caps_is_subset_structure_full (newcaps, structure, features))
continue;
structure = gst_structure_copy (structure);
features = gst_caps_features_copy (features);
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_structure_remove_field (structure, "format");
if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio"))) {
gst_structure_set (structure,
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
NULL);
}
gst_caps_append_structure_full (newcaps, structure, features);
}
if (direction == GST_PAD_SINK)
newcaps =
gst_static_pad_template_get_caps (&gst_gl_filter_src_pad_template);
else if (direction == GST_PAD_SRC)
newcaps =
gst_static_pad_template_get_caps (&gst_gl_filter_sink_pad_template);
else
newcaps = gst_caps_new_any ();
if (filter) {
result =