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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-23 20:29:50 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-09 22:02:19 +0200 |
| commit | 8206115257cba5af70357a44527b65377e22ccb7 (patch) | |
| tree | 3097bd80a1a93bf3d9eea3948fab91ac52e86e30 | |
| parent | 39d8fb2f6733af50f9c7cf0a93d9f11acb07085d (diff) | |
| download | ffmpeg-8206115257cba5af70357a44527b65377e22ccb7.tar.gz | |
avcodec/dirac_parser: do not offset AV_NOPTS_OFFSET
Fixes: signed integer overflow: -9223372036854775807 - 48000 cannot be represented in type 'long long'
Fixes: 26521/clusterfuzz-testcase-minimized-ffmpeg_dem_DIRAC_fuzzer-5635536506847232
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 343c3149ab3d77be76f035d3b18bb2b2da48ce1f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dirac_parser.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dirac_parser.c b/libavcodec/dirac_parser.c index fbc7414c79..8e68b4a9da 100644 --- a/libavcodec/dirac_parser.c +++ b/libavcodec/dirac_parser.c @@ -215,7 +215,7 @@ static int dirac_combine_frame(AVCodecParserContext *s, AVCodecContext *avctx, int64_t pts = AV_RB32(cur_pu + 13); if (s->last_pts == 0 && s->last_dts == 0) s->dts = pts - 1; - else + else if (s->last_dts != AV_NOPTS_VALUE) s->dts = s->last_dts + 1; s->pts = pts; if (!avctx->has_b_frames && (cur_pu[4] & 0x03)) |