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h264: don't re-call ff_h264_direct_ref_list_init() w/ frame-mt.

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I'm hoping that this will address the remaining tsan fate-h264 issues:

WARNING: ThreadSanitizer: data race (pid=24478)
  Read of size 8 at 0x7dbc0001c828 by main thread (mutexes: write M3243):
    #0 ff_h264_ref_picture src/libavcodec/h264_picture.c:107 (ffmpeg+0x0000013b78d8)
[..]
  Previous write of size 1 at 0x7dbc0001c82e by thread T2 (mutexes: write M3245):
    #0 ff_h264_direct_ref_list_init src/libavcodec/h264_direct.c:137 (ffmpeg+0x000001382c93)

But I'm not sure because I haven't been able to reproduce locally.
This commit is contained in:
Ronald S. Bultje 2017-04-06 11:47:03 -04:00
parent 8d94d9798a
commit 7f05c5cea0
1 changed files with 2 additions and 1 deletions
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3
libavcodec/h264_slice.c
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@ -1891,7 +1891,8 @@ static int h264_slice_init(H264Context *h, H264SliceContext *sl,
if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
ff_h264_direct_dist_scale_factor(h, sl);
ff_h264_direct_ref_list_init(h, sl);
if (!h->setup_finished)
ff_h264_direct_ref_list_init(h, sl);
if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
(h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&