ffmpeg | branch: release/7.1 | James Almer <jamr...@gmail.com> | Tue Jan 28 21:23:11 2025 -0300| [a4bf50b5c0e9ea55f1bbadc38ce6fb690ece63d8] | committer: James Almer
avformat/mov: fix overflow in drift timestamp calculation Fixes: signed integer overflow: 7803923888585309955 - -3407677434275325337 cannot be represented in type 'int64_t' (aka 'long') Fixes: 377736723/clusterfuzz-testcase-minimized-media_pipeline_integration_fuzzer-5052449500889088 Signed-off-by: James Almer <jamr...@gmail.com> (cherry picked from commit 02958ab7156b4e14f1918f2b72c6d3678852698f) > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a4bf50b5c0e9ea55f1bbadc38ce6fb690ece63d8 --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 695b975147..63e8fe31ff 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3545,7 +3545,7 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom) current_dts += sc->stts_data[i].duration * (uint64_t)sample_count; if (current_dts > corrected_dts) { - int64_t drift = (current_dts - corrected_dts)/FFMAX(sample_count, 1); + int64_t drift = av_sat_sub64(current_dts, corrected_dts) / FFMAX(sample_count, 1); uint32_t correction = (sc->stts_data[i].duration > drift) ? drift : sc->stts_data[i].duration - 1; current_dts -= correction * (uint64_t)sample_count; sc->stts_data[i].duration -= correction; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
