From e89d8ed7cb3fc0dd1e108a5919b2c6f4f454fe60 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 7 Mar 2018 00:10:11 +0100 Subject: [PATCH] avformat/utils: Fix integer overflow of fps_first/last_dts Fixes: runtime error: signed integer overflow: 7738135736989908991 - -7898362169240453118 cannot be represented in type 'long' Fixes: Chromium bug 796778 Reported-by: Matt Wolenetz Signed-off-by: Michael Niedermayer (cherry picked from commit 1b1362e408cd6acb63fef126b814b0d16562aa8e) Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index 2c622d2c56..2053c3f755 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -3622,7 +3622,7 @@ FF_ENABLE_DEPRECATION_WARNINGS if (st->info->fps_last_dts != AV_NOPTS_VALUE && st->info->fps_last_dts_idx > st->info->fps_first_dts_idx && (pkt->dts - st->info->fps_last_dts) / 1000 > - (st->info->fps_last_dts - st->info->fps_first_dts) / + (st->info->fps_last_dts - (uint64_t)st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) { av_log(ic, AV_LOG_WARNING, "DTS discontinuity in stream %d: packet %d with DTS "