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asfdec: Don't read the video stream header if there isn't enough data

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Originally committed as revision 24352 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö
2010-07-20 11:52:29 +00:00
parent a3ab7c3249
commit fed7959271
1 changed files with 2 additions and 1 deletions
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3
libavformat/asfdec.c
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@@ -361,7 +361,8 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->codec->frame_size = 1;
break;
}
} else if (type == AVMEDIA_TYPE_VIDEO) {
} else if (type == AVMEDIA_TYPE_VIDEO &&
gsize - (url_ftell(pb) - pos1 + 24) >= 53) {
get_le32(pb);
get_le32(pb);
get_byte(pb);