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avformat/dv: fix used dimension variables 

Fixes null pointer dereference during seeking
Fixes Ticket4395

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-26 03:10:27 +01:00
parent df43d03731
commit 2139e58439
1 changed files with 2 additions and 2 deletions
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4
libavformat/dv.c
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@ -422,8 +422,8 @@ static int64_t dv_frame_offset(AVFormatContext *s, DVDemuxContext *c,
int64_t timestamp, int flags)
{
// FIXME: sys may be wrong if last dv_read_packet() failed (buffer is junk)
const AVDVProfile *sys = av_dv_codec_profile2(c->vst->codec->width, c->vst->codec->height,
c->vst->codec->pix_fmt, c->vst->codec->time_base);
const AVDVProfile *sys = av_dv_codec_profile2(c->vst->codec->coded_width, c->vst->codec->coded_height,
c->vst->codec->pix_fmt, c->vst->codec->time_base);
int64_t offset;
int64_t size = avio_size(s->pb) - s->internal->data_offset;
int64_t max_offset = ((size - 1) / sys->frame_size) * sys->frame_size;