diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-15 00:35:48 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-20 19:05:02 +0200 |
| commit | f4605770af712dd9d7b0136fe298f8aa52101011 (patch) | |
| tree | 8bbbcd2820bd91524fc72f31d8987c5ff68c988a /libavcodec/ffwavesynth.c | |
| parent | c95857a4237d7a0c55378a44f51d2d809f3bc8f5 (diff) | |
| download | ffmpeg-f4605770af712dd9d7b0136fe298f8aa52101011.tar.gz | |
avcodec/ffwavesynth: More correct cast in wavesynth_seek()
Fixes: signed integer overflow: 553590816 - -9223372036315799520 cannot be represented in type 'long'
Fixes: 15743/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5705835377852416
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ffwavesynth.c')
| -rw-r--r-- | libavcodec/ffwavesynth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ffwavesynth.c b/libavcodec/ffwavesynth.c index 1dbfaa5847..94a843e3ca 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -215,7 +215,7 @@ static void wavesynth_seek(struct wavesynth_context *ws, int64_t ts) ws->next_inter = i; ws->next_ts = i < ws->nb_inter ? ws->inter[i].ts_start : INF_TS; *last = -1; - lcg_seek(&ws->dither_state, (uint32_t)ts - ws->cur_ts); + lcg_seek(&ws->dither_state, (uint32_t)ts - (uint32_t)ws->cur_ts); if (ws->pink_need) { int64_t pink_ts_cur = (ws->cur_ts + PINK_UNIT - 1) & ~(PINK_UNIT - 1); int64_t pink_ts_next = ts & ~(PINK_UNIT - 1); |