lavf/matroskaenc: check for overflow in display width.

This commit is contained in:
Nicolas George 2012-12-12 21:19:24 +01:00
parent 7897919a88
commit 2dbc84b1a8
1 changed files with 5 additions and 1 deletions

View File

@ -637,7 +637,11 @@ static int mkv_write_tracks(AVFormatContext *s)
}
if (st->sample_aspect_ratio.num) {
int d_width = av_rescale(codec->width, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
int64_t d_width = av_rescale(codec->width, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
if (d_width > INT_MAX) {
av_log(s, AV_LOG_ERROR, "Overflow in display width\n");
return AVERROR(EINVAL);
}
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height);
}