better assert message

git-svn-id: https://xpra.org/svn/Xpra/trunk@26900 3bb7dfac-3a0b-4e04-842a-767bc560f471
Xpra-org · Jul 6, 2020 · 64c59c9 · 64c59c9
1 parent 87856be
commit 64c59c9
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/xpra/client/window_backing_base.py b/src/xpra/client/window_backing_base.py
@@ -521,7 +521,8 @@ def paint_with_video_decoder(self, decoder_module, coding, img_data, x, y, width
                 return
             #do we need a prep step for decoders that cannot handle the input_colorspace directly?
             decoder_colorspaces = decoder_module.get_input_colorspaces(coding)
-            assert input_colorspace in decoder_colorspaces, "decoder does not support %s for %s" % (input_colorspace, coding)
+            assert input_colorspace in decoder_colorspaces, "decoder %s does not support %s for %s" % (
+                decoder_module.get_type(), input_colorspace, coding)
 
             vd = self._video_decoder
             if vd: