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mvdec: use avpriv_set_pts_info() instead of directly setting tb. 

Fixes division by 0

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-22 22:40:38 +01:00
parent 1bb05797ec
commit 4c9f35bb7c
1 changed files with 3 additions and 2 deletions
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5
libavformat/mvdec.c
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@ -165,7 +165,8 @@ static int parse_video_var(AVFormatContext *avctx, AVStream *st, const char *nam
}
av_free(str);
} else if (!strcmp(name, "FPS")) {
st->time_base = av_inv_q(var_read_float(pb, size));
AVRational tb = av_inv_q(var_read_float(pb, size));
avpriv_set_pts_info(st, 64, tb.num, tb.den);
} else if (!strcmp(name, "HEIGHT")) {
st->codec->height = var_read_int(pb, size);
} else if (!strcmp(name, "PIXEL_ASPECT")) {
@ -250,7 +251,7 @@ static int mv_read_header(AVFormatContext *avctx)
if (!vst)
return AVERROR(ENOMEM);
vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
vst->time_base = (AVRational){1, 15};
avpriv_set_pts_info(vst, 64, 1, 15);
vst->nb_frames = avio_rb32(pb);
v = avio_rb32(pb);
switch (v) {