[Bug 740222] libav: Video decoder maps buffer READ/WRITE instead of just WRITE

Thu Nov 20 07:02:14 PST 2014

https://bugzilla.gnome.org/show_bug.cgi?id=740222
  GStreamer | gst-libav | 1.4.4

Wim Taymans <wim.taymans> changed:

           What    |Removed                     |Added
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                 CC|                            |wim.taymans at gmail.com

--- Comment #7 from Wim Taymans <wim.taymans at gmail.com> 2014-11-20 15:02:10 UTC ---
> Right now we do the silliest thing ever, we push a buffer mapped in READ/WRITE.
> It only worked because XImage does not call map.

It works because you can map a READWRITE mapped memory in READ and WRITE
without problems. Mapping in write mode is problematic because downstream could
then modify the reference frame.

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