ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Feb 16 18:32:31 2020 +0100| [31f956acadd994b8c4e22b714aaffee0f527c827] | committer: Michael Niedermayer
avformat/swfenc: Fix integer overflow in frame rate handling Fixes: signed integer overflow: 30000299 * 256 cannot be represented in type 'int' Fixes: ticket8184 Found-by: Suhwan Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=31f956acadd994b8c4e22b714aaffee0f527c827 --- libavformat/swfenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/swfenc.c b/libavformat/swfenc.c index 84f924eda5..9da4aad959 100644 --- a/libavformat/swfenc.c +++ b/libavformat/swfenc.c @@ -256,7 +256,7 @@ static int swf_write_header(AVFormatContext *s) av_log(s, AV_LOG_ERROR, "Invalid (too large) frame rate %d/%d\n", rate, rate_base); return AVERROR(EINVAL); } - avio_wl16(pb, (rate * 256) / rate_base); /* frame rate */ + avio_wl16(pb, (rate * 256LL) / rate_base); /* frame rate */ swf->duration_pos = avio_tell(pb); avio_wl16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */ _______________________________________________ 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".
