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Code Issues Releases Activity

avcodec: properly check pkt_timebase for validity

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Unset/invalid timebases have a zero numerator.
This makes the checks consistent with other timebase checks and fixes an
integer division by 0.
This commit is contained in:
Hendrik Leppkes 2015-12-27 20:00:10 +01:00
parent 3c6781b48a
commit 50401f5fb7
2 changed files with 2 additions and 2 deletions
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2
libavcodec/libzvbi-teletextdec.c
View File

@ -412,7 +412,7 @@ static int teletext_decode_frame(AVCodecContext *avctx, void *data, int *data_si
} }
} }
if (avctx->pkt_timebase.den && pkt->pts != AV_NOPTS_VALUE) if (avctx->pkt_timebase.num && pkt->pts != AV_NOPTS_VALUE)
ctx->pts = av_rescale_q(pkt->pts, avctx->pkt_timebase, AV_TIME_BASE_Q); ctx->pts = av_rescale_q(pkt->pts, avctx->pkt_timebase, AV_TIME_BASE_Q);
if (pkt->size) { if (pkt->size) {

2
libavcodec/utils.c
View File

@ -2435,7 +2435,7 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
} else { } else {
avctx->internal->pkt = &pkt_recoded; 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, sub->pts = av_rescale_q(avpkt->pts,
avctx->pkt_timebase, AV_TIME_BASE_Q); avctx->pkt_timebase, AV_TIME_BASE_Q);
ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded); ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);