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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-08 21:53:15 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-17 20:35:19 +0200 |
| commit | 625044336e6ec561740bbc4be6ee712c13e44e33 (patch) | |
| tree | 51026ca7e1b7b9e9a9aaea46668e555e9e140432 /libavcodec/h264_mvpred.h | |
| parent | 8b4386ab876483ffdb0be4daf48da1cd99632b6f (diff) | |
| download | ffmpeg-625044336e6ec561740bbc4be6ee712c13e44e33.tar.gz | |
avcodec/h264_mvpred: Fix runtime error: left shift of negative value -1
Fixes: 734/clusterfuzz-testcase-4821293192970240
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 222c9f031de3315af62be6d7a99c71105e516088)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/h264_mvpred.h')
| -rw-r--r-- | libavcodec/h264_mvpred.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_mvpred.h b/libavcodec/h264_mvpred.h index 36151bf15c..18de4b0bbc 100644 --- a/libavcodec/h264_mvpred.h +++ b/libavcodec/h264_mvpred.h @@ -68,7 +68,7 @@ static av_always_inline int fetch_diagonal_mv(const H264Context *h, H264SliceCon } if (MB_FIELD(sl) && !IS_INTERLACED(sl->left_type[0])) { // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK. - SET_DIAG_MV(/ 2, << 1, sl->left_mb_xy[i >= 36], ((i >> 2)) & 3); + SET_DIAG_MV(/ 2, *2, sl->left_mb_xy[i >= 36], ((i >> 2)) & 3); } } #undef SET_DIAG_MV |