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libavformat/mtv: add test for audio magic 

MTV files have the string "MP3" as audio magic on their
header. Always.

Signed-off-by: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2014-01-24 18:40:04 -03:00
parent ef034cbf18
commit 95d1809981
1 changed files with 4 additions and 0 deletions
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4
libavformat/mtv.c
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@ -63,6 +63,10 @@ static int mtv_probe(AVProbeData *p)
if (*p->buf != 'A' || *(p->buf + 1) != 'M' || *(p->buf + 2) != 'V')
return 0;
/* Audio magic is always MP3 */
if (p->buf[43] != 'M' || p->buf[44] != 'P' || p->buf[45] != '3')
return 0;
/* Check for nonzero in bpp and (width|height) header fields */
if(!(p->buf[51] && AV_RL16(&p->buf[52]) | AV_RL16(&p->buf[54])))
return 0;