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make sure the mpeg audio header is valid before passing it to ff_mpegaudio_decode_header()

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Originally committed as revision 10925 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Andreas Öman 2007-11-04 19:52:08 +00:00
parent f9def9ccc6
commit 5b5bd7c9ee
1 changed files with 5 additions and 1 deletions
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6
libavformat/mp3.c
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@ -435,7 +435,11 @@ static void mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, offset_t base)
const offset_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
MPADecodeContext c;
ff_mpegaudio_decode_header(&c, get_be32(&s->pb));
v = get_be32(&s->pb);
if(ff_mpa_check_header(v) < 0)
return;
ff_mpegaudio_decode_header(&c, v);
if(c.layer != 3)
return;