ffmpeg version N-86245-g9a4b8351f7 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 6.3.1 (GCC) 20170306
  configuration: --extra-cflags='-fsanitize=thread' --extra-ldflags='-fsanitize=thread' --samples=/home/ux/fate-samples --disable-stripping
  libavutil      55. 63.100 / 55. 63.100
  libavcodec     57. 96.101 / 57. 96.101
  libavformat    57. 72.101 / 57. 72.101
  libavdevice    57.  7.100 / 57.  7.100
  libavfilter     6. 90.100 /  6. 90.100
  libswscale      4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
[hevc @ 0x7d6400018b00] missing picture in access unit
Input #0, hevc, from '/home/ux/fate-samples/hevc-conformance/OPFLAG_C_Qualcomm_1.bit':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: hevc (Main), yuv420p(tv), 832x480, 25 fps, 25 tbr, 1200k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> rawvideo (native))
Output #0, framecrc, to 'pipe:':
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 832x480, q=2-31, 119808 kb/s, 25 fps, 25 tbn, 25 tbc
    Metadata:
      encoder         : Lavc rawvideo
[framecrc @ 0x7d680001da00] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[framecrc @ 0x7d680001da00] Encoder did not produce proper pts, making some up.
==================
WARNING: ThreadSanitizer: data race (pid=6850)
  Write of size 4 at 0x7d6400013dfc by main thread (mutexes: write M1651):
    #0 update_context_from_user src/libavcodec/pthread_frame.c:335 (ffmpeg+0x000000da7a7c)
    #1 submit_packet src/libavcodec/pthread_frame.c:396 (ffmpeg+0x000000da7a7c)
    #2 ff_thread_decode_frame src/libavcodec/pthread_frame.c:490 (ffmpeg+0x000000da7a7c)
    #3 decode_simple_internal src/libavcodec/decode.c:415 (ffmpeg+0x0000009b1fdc)
    #4 decode_simple_receive_frame src/libavcodec/decode.c:620 (ffmpeg+0x0000009b3a8a)
    #5 decode_receive_frame_internal src/libavcodec/decode.c:638 (ffmpeg+0x0000009b3a8a)
    #6 avcodec_send_packet src/libavcodec/decode.c:678 (ffmpeg+0x0000009b3a8a)
    #7 decode src/ffmpeg.c:2265 (ffmpeg+0x00000050de45)
    #8 decode_video src/ffmpeg.c:2409 (ffmpeg+0x00000050de45)
    #9 process_input_packet src/ffmpeg.c:2644 (ffmpeg+0x000000510c74)
    #10 process_input src/ffmpeg.c:4428 (ffmpeg+0x0000004d733b)
    #11 transcode_step src/ffmpeg.c:4539 (ffmpeg+0x0000004d733b)
    #12 transcode src/ffmpeg.c:4593 (ffmpeg+0x0000004d733b)
    #13 main src/ffmpeg.c:4798 (ffmpeg+0x0000004d733b)

  Previous read of size 4 at 0x7d6400013dfc by thread T6:
    [failed to restore the stack]

  Location is heap block of size 1160 at 0x7d6400013b00 allocated by main thread:
    #0 posix_memalign /build/gcc/src/gcc/libsanitizer/tsan/tsan_interceptors.cc:779 (libtsan.so.0+0x000000028229)
    #1 av_malloc src/libavutil/mem.c:87 (ffmpeg+0x0000016b5b91)
    #2 ff_frame_thread_init src/libavcodec/pthread_frame.c:768 (ffmpeg+0x000000da9633)
    #3 ff_thread_init src/libavcodec/pthread.c:77 (ffmpeg+0x0000014a025a)
    #4 avcodec_open2 src/libavcodec/utils.c:822 (ffmpeg+0x000000f13daa)
    #5 init_input_stream src/ffmpeg.c:2906 (ffmpeg+0x000000507253)
    #6 transcode_init src/ffmpeg.c:3649 (ffmpeg+0x000000507253)
    #7 transcode src/ffmpeg.c:4564 (ffmpeg+0x0000004d5aee)
    #8 main src/ffmpeg.c:4798 (ffmpeg+0x0000004d5aee)

  Mutex M1651 (0x7d7c0000c9a0) created at:
    #0 pthread_mutex_init /build/gcc/src/gcc/libsanitizer/tsan/tsan_interceptors.cc:1091 (libtsan.so.0+0x000000028cbe)
    #1 ff_frame_thread_init src/libavcodec/pthread_frame.c:771 (ffmpeg+0x000000da9667)
    #2 ff_thread_init src/libavcodec/pthread.c:77 (ffmpeg+0x0000014a025a)
    #3 avcodec_open2 src/libavcodec/utils.c:822 (ffmpeg+0x000000f13daa)
    #4 init_input_stream src/ffmpeg.c:2906 (ffmpeg+0x000000507253)
    #5 transcode_init src/ffmpeg.c:3649 (ffmpeg+0x000000507253)
    #6 transcode src/ffmpeg.c:4564 (ffmpeg+0x0000004d5aee)
    #7 main src/ffmpeg.c:4798 (ffmpeg+0x0000004d5aee)

  Thread T6 (tid=6921, running) created by main thread at:
    #0 pthread_create /build/gcc/src/gcc/libsanitizer/tsan/tsan_interceptors.cc:876 (libtsan.so.0+0x000000028490)
    #1 ff_frame_thread_init src/libavcodec/pthread_frame.c:826 (ffmpeg+0x000000da9895)
    #2 ff_thread_init src/libavcodec/pthread.c:77 (ffmpeg+0x0000014a025a)
    #3 avcodec_open2 src/libavcodec/utils.c:822 (ffmpeg+0x000000f13daa)
    #4 init_input_stream src/ffmpeg.c:2906 (ffmpeg+0x000000507253)
    #5 transcode_init src/ffmpeg.c:3649 (ffmpeg+0x000000507253)
    #6 transcode src/ffmpeg.c:4564 (ffmpeg+0x0000004d5aee)
    #7 main src/ffmpeg.c:4798 (ffmpeg+0x0000004d5aee)

SUMMARY: ThreadSanitizer: data race src/libavcodec/pthread_frame.c:335 in update_context_from_user
==================
frame=   96 fps=8.0 q=-0.0 Lsize=       6kB time=00:00:03.84 bitrate=  11.8kbits/s speed=0.319x    
video:56160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
ThreadSanitizer: reported 1 warnings