[gstreamer-bugs] [Bug 353970] [capsfilter] doesn't filter caps correctly

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: HEAD CVS





------- Comment #3 from Tim-Philipp Müller  2006-11-02 19:11 UTC -------
The patch is problematic in setups like totem-video-thumbnailer (e.g. as in bug
#369502), where conversion will fail in a setup like:

  ... ! videoscale ! filtercaps ! sink

where the filtercaps set are fixed and very specific, including a
pixel-aspect-ratio=1/1 field. In the process of negotiation, capsfilter will
get the template caps from videoscale's source pad and those don't have a
pixel-aspect-ratio field, so things will error out here because caps are
allegedly incompatible. Arguably this needs to be added to videoscale's
template caps then, but in any case it seems this isn't really a feasable way
to go, so I guess it comes down to upstream doing better caps nego.


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