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authorRonald S. Bultje <rsbultje@gmail.com>2017-04-06 13:58:59 -0400
committerRonald S. Bultje <rsbultje@gmail.com>2017-04-07 13:29:45 -0400
commit2e664b9c1e73c80aab91070c1eb7676f04bdd12d (patch)
treef30e53473e4c16ac5f9cb0572c35b9d72ace4d02 /libavformat/rtpdec_vc2hq.c
parent7f05c5cea04112471d8147487aa3b44141922d09 (diff)
downloadffmpeg-2e664b9c1e73c80aab91070c1eb7676f04bdd12d.tar.gz
pthread_frame: make accesses to debug field be protected by owner lock.
The av_log() is done outside the lock, but this way the accesses to the field (reads and writes) are always protected by a mutex. The av_log() is not run inside the lock context because it may involve user callbacks and doing that in performance-sensitive code is probably not a good idea. This should fix occasional tsan warnings when running fate-h264, like: WARNING: ThreadSanitizer: data race (pid=10916) Write of size 4 at 0x7d64000174fc by main thread (mutexes: write M2313): #0 update_context_from_user src/libavcodec/pthread_frame.c:335 (ffmpeg+0x000000df7b06) [..] Previous read of size 4 at 0x7d64000174fc by thread T1 (mutexes: write M2311): #0 ff_thread_await_progress src/libavcodec/pthread_frame.c:592 (ffmpeg+0x000000df8b3e)
Diffstat (limited to 'libavformat/rtpdec_vc2hq.c')
0 files changed, 0 insertions, 0 deletions