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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
parent 767a3524ae
commit d57403ab98
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 =