avformat/allformats: Making av_register_all() thread-safe.
authorVivekanand <sendtovivekanand@gmail.com>
Thu, 7 Apr 2016 10:46:23 +0000 (16:16 +0530)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 15 Aug 2016 16:54:34 +0000 (18:54 +0200)
commit5af0ada4427140fc7d7abbd175ecad91433d155d
treec5e841656f976b43a29541ee949a2fa5400d8db3
parentffb503c9a14c837d6f73a609129c4fca4836b51d
avformat/allformats: Making av_register_all() thread-safe.

When multiple threads tries to call av_register_all(), the first thread sets
initialized to 1 and do the register process. At the same time, other thread might
also call av_register_all(), which returns immediately because initialized is set to 1
(even when it has not completed registering codecs). We can avoid this problem
if we set initialised to 1 while exiting from function.

Github: Closes #196
(cherry picked from commit b092ee701f4d0ef2b8a4171cd38101d1ee9a1034)

Conflicts:

libavformat/allformats.c
libavformat/allformats.c