[Bug 665989] a52dec: segfault when copying liba52's buffer into gst's buffer

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=665989
  GStreamer | gst-plugins-ugly | git

--- Comment #5 from Sebastian Dröge <slomo at circular-chaos.org> 2011-12-12 12:57:28 UTC ---
The only difference of the _set_caps() variant is, that it automatically calls
your srcpad's setcaps function. core doesn't do anything special for the
non-set_caps() variant other than giving you the buffer provided by downstream.


Also downstream is not required to check if the different caps it returns (and
in the case of capsfilter the size will be 0 btw, capsfilter can't calculate
the size of buffers from the caps) are actually supported by upstream. Upstream
always has to check the caps and size.

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