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videoutilsprivate: fill more video fields.
__gst_video_element_proxy_caps is called by __gst_video_element_proxy_getcaps with caps set to the caps allowed downstream. As we didn't set colorimetry or chroma-site on the resulting caps, upstream considered it possible to use whatever values it wanted, leading to not negotiated errors later on. As the description for that function is: "Takes caps and copies its video fields to tmpl_caps", it seems legitimate to set these fields there. https://bugzilla.gnome.org/show_bug.cgi?id=786172
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@ -58,6 +58,10 @@ __gst_video_element_proxy_caps (GstElement * element, GstCaps * templ_caps,
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gst_structure_set_value (s, "framerate", val);
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if ((val = gst_structure_get_value (caps_s, "pixel-aspect-ratio")))
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gst_structure_set_value (s, "pixel-aspect-ratio", val);
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if ((val = gst_structure_get_value (caps_s, "colorimetry")))
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gst_structure_set_value (s, "colorimetry", val);
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if ((val = gst_structure_get_value (caps_s, "chroma-site")))
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gst_structure_set_value (s, "chroma-site", val);
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gst_caps_append_structure_full (tmp, s,
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gst_caps_features_copy (features));
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