[FFmpeg-devel] [PATCH] avcodec/utils: fix check for invalid timebase when decoding subtitles

[Hendrik Leppkes]

Invalid timebases have a zero numerator, not denominator.
Fixes a integer divison by zero.
---
 libavcodec/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 19f3f0a..33295ed 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -2435,7 +2435,7 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
         } else {
             avctx->internal->pkt = &pkt_recoded;
 
-            if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
+            if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
                 sub->pts = av_rescale_q(avpkt->pts,
                                         avctx->pkt_timebase, AV_TIME_BASE_Q);
             ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
-- 
2.6.2.windows.1