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avformat/moflex: Don't use uninitialized timebase for data stream 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-12-12 16:02:22 +01:00
parent 0a25abdacd
commit 38e5ca9310
1 changed files with 6 additions and 7 deletions
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13
libavformat/moflex.c
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@ -172,7 +172,7 @@ static int moflex_read_sync(AVFormatContext *s)
unsigned type, ssize, codec_id = 0;
unsigned codec_type, width = 0, height = 0, sample_rate = 0, channels = 0;
int stream_index = -1;
AVRational fps;
AVRational tb = av_make_q(0, 1);
read_var_byte(s, &type);
read_var_byte(s, &ssize);
@ -195,6 +195,7 @@ static int moflex_read_sync(AVFormatContext *s)
return AVERROR_PATCHWELCOME;
}
sample_rate = avio_rb24(pb) + 1;
tb = av_make_q(1, sample_rate);
channels = avio_r8(pb) + 1;
break;
case 1:
@ -208,8 +209,8 @@ static int moflex_read_sync(AVFormatContext *s)
av_log(s, AV_LOG_ERROR, "Unsupported video codec: %d\n", codec_id);
return AVERROR_PATCHWELCOME;
}
fps.num = avio_rb16(pb);
fps.den = avio_rb16(pb);
tb.den = avio_rb16(pb);
tb.num = avio_rb16(pb);
width = avio_rb16(pb);
height = avio_rb16(pb);
avio_skip(pb, type == 3 ? 3 : 2);
@ -237,10 +238,8 @@ static int moflex_read_sync(AVFormatContext *s)
if (!st->priv_data)
return AVERROR(ENOMEM);
if (sample_rate)
avpriv_set_pts_info(st, 63, 1, sample_rate);
else
avpriv_set_pts_info(st, 63, fps.den, fps.num);
if (tb.num)
avpriv_set_pts_info(st, 63, tb.num, tb.den);
}
}