This is cherrypicked from libav commit 85ad5ea72ce3983947a3b07e4b35c66cb16dfaba. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This is cherrypicked from libav commit 85ad5ea72ce3983947a3b07e4b35c66cb16dfaba. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>