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glfilter: rewrite transform_caps to preserve caps fields

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=729861
This commit is contained in:
Julien Isorce 2014-05-13 13:30:47 +01:00 committed by Nicolas Dufresne
parent 1e90a68aec
commit e46de48f10
1 changed files with 53 additions and 16 deletions
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69
gst-libs/gst/gl/gstglfilter.c
View file

@ -660,31 +660,68 @@ done:
return othercaps;
}
static GstCaps *
gst_gl_filter_set_caps_features (const GstCaps * caps,
const gchar * feature_name)
{
GstCaps *tmp = gst_caps_copy (caps);
guint n = gst_caps_get_size (tmp);
guint i = 0;
for (i = 0; i < n; i++) {
GstCapsFeatures *features = gst_caps_get_features (tmp, i);
if (features) {
guint n_f = gst_caps_features_get_size (features);
guint j = 0;
for (j = 0; j < n_f; j++) {
gst_caps_features_remove_id (features,
gst_caps_features_get_nth_id (features, j));
}
}
gst_caps_features_add (features, feature_name);
gst_caps_set_simple (tmp, "format", G_TYPE_STRING, "RGBA", NULL);
}
return tmp;
}
static GstCaps *
gst_gl_filter_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *newcaps, *result;
GstCaps *tmp = NULL;
GstCaps *result = NULL;
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 (direction == GST_PAD_SINK) {
GstCaps *glcaps = gst_gl_filter_set_caps_features (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
GstCaps *eglcaps = gst_gl_filter_set_caps_features (caps,
GST_CAPS_FEATURE_MEMORY_EGL_IMAGE);
GstCaps *uploadcaps = gst_gl_filter_set_caps_features (caps,
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META);
if (filter) {
result =
gst_caps_intersect_full (filter, newcaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (newcaps);
newcaps = result;
tmp = gst_caps_new_empty ();
tmp = gst_caps_merge (tmp, glcaps);
tmp = gst_caps_merge (tmp, eglcaps);
tmp = gst_caps_merge (tmp, uploadcaps);
tmp = gst_caps_merge (tmp, gst_caps_copy (caps));
} else {
tmp = gst_caps_copy (caps);
}
GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, newcaps);
if (filter) {
result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
} else {
result = tmp;
}
return newcaps;
GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, result);
return result;
}