glcolorconvert: Keep colorimetry and chroma-site fields if passthrough

https://bugzilla.gnome.org/show_bug.cgi?id=748141

diff --git a/ext/gl/gstglcolorconvertelement.c b/ext/gl/gstglcolorconvertelement.c
index 3fd1b53..52cf13b 100644 (file)
--- a/ext/gl/gstglcolorconvertelement.c
+++ b/ext/gl/gstglcolorconvertelement.c
@@ -48,6 +48,8 @@ gst_gl_color_convert_element_prepare_output_buffer (GstBaseTransform * bt,
     GstBuffer * inbuf, GstBuffer ** outbuf);
 static GstFlowReturn gst_gl_color_convert_element_transform (GstBaseTransform *
     bt, GstBuffer * inbuf, GstBuffer * outbuf);
+static GstCaps *gst_gl_color_convert_element_fixate_caps (GstBaseTransform *
+    bt, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
 
 static GstStaticPadTemplate gst_gl_color_convert_element_src_pad_template =
 GST_STATIC_PAD_TEMPLATE ("src",
@@ -93,6 +95,7 @@ gst_gl_color_convert_element_class_init (GstGLColorConvertElementClass * klass)
       gst_gl_color_convert_element_prepare_output_buffer;
   bt_class->transform = gst_gl_color_convert_element_transform;
   bt_class->stop = gst_gl_color_convert_element_stop;
+  bt_class->fixate_caps = gst_gl_color_convert_element_fixate_caps;
 
   bt_class->passthrough_on_same_caps = TRUE;
 
@@ -211,3 +214,25 @@ gst_gl_color_convert_element_transform (GstBaseTransform * bt,
 {
   return GST_FLOW_OK;
 }
+
+static GstCaps *
+gst_gl_color_convert_element_fixate_caps (GstBaseTransform *
+    bt, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
+{
+  GstCaps *ret;
+
+  ret =
+      GST_BASE_TRANSFORM_CLASS
+      (gst_gl_color_convert_element_parent_class)->fixate_caps (bt, direction,
+      caps, othercaps);
+
+  if (direction == GST_PAD_SINK) {
+    GstStructure *in_structure = gst_caps_get_structure (caps, 0);
+
+    if (gst_caps_is_subset (caps, ret)) {
+      gst_caps_replace (&ret, caps);
+    }
+  }
+
+  return ret;
+}