From e4289cb253e29e4d62dc46759eb1a45d8f6d82df Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 19 Feb 2019 18:41:42 +0100 Subject: [PATCH] avcodec/error_resilience: Use a symmetric check for skipping MV estimation This speeds up the testcase by a factor of 4 Fixes: Timeout Fixes: 13100/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV2_fuzzer-5767533905313792 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/error_resilience.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/error_resilience.c b/libavcodec/error_resilience.c index 1abae53f41..35d0c609e5 100644 --- a/libavcodec/error_resilience.c +++ b/libavcodec/error_resilience.c @@ -437,7 +437,7 @@ static void guess_mv(ERContext *s) } if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || - num_avail <= mb_width / 2) { + num_avail <= FFMAX(mb_width, mb_height) / 2) { for (mb_y = 0; mb_y < mb_height; mb_y++) { for (mb_x = 0; mb_x < s->mb_width; mb_x++) { const int mb_xy = mb_x + mb_y * s->mb_stride;