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default_ref[] is unconditionally initialized in h264_initialise_ref_list() (called from ff_h264_build_ref_list(), called from h264_slice_init()). This fixes the following tsan warning when running fate-h264: WARNING: ThreadSanitizer: data race (pid=31070) Write of size 8 at 0x7bbc000082a8 by thread T1 (mutexes: write M1628): #0 memcpy /work/release-test/final/llvm.src/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:655:5 (ffmpeg+0x10de9d) #1 h264_initialise_ref_list ffmpeg/libavcodec/h264_refs.c:214:29 (ffmpeg+0x1186b3f) #2 ff_h264_build_ref_list ffmpeg/libavcodec/h264_refs.c:306 (ffmpeg+0x1186b3f) #3 h264_slice_init ffmpeg/libavcodec/h264_slice.c:1900:11 (ffmpeg+0x1191149) [..] Previous read of size 8 at 0x7bbc000082a8 by main thread (mutexes: write M1630): #0 memcpy /work/release-test/final/llvm.src/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:655:5 (ffmpeg+0x10de9d) #1 ff_h264_update_thread_context ffmpeg/libavcodec/h264_slice.c:411:5 (ffmpeg+0x118b7dc) Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>pull/265/head
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