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glcolorconver: Return empty caps in transform_caps if fails.

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We should not return a NULL in transform_caps() function. The NULL
will generate a assert of:
  "transform_caps returned caps which are not a real subset of the
   filter caps"
in transform base class.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/922>
This commit is contained in:
He Junyan 2020-11-06 16:18:14 +08:00
parent 1146a7e3a0
commit f7ea6d9b64
1 changed files with 1 additions and 1 deletions
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2
ext/gl/gstglcolorconvertelement.c
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@ -149,7 +149,7 @@ gst_gl_color_convert_element_transform_caps (GstBaseTransform * bt,
GstCaps *ret;
if (base_filter->display && !gst_gl_base_filter_find_gl_context (base_filter))
return NULL;
return gst_caps_new_empty ();
context = gst_gl_base_filter_get_gl_context (base_filter);