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Smarten mtv's probe a bit. Check for non zero

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on bpp and width|height header fields. This
change is among the ones suggested by Vitor
Sessak in his '[FFmpeg-devel] [PATCH] Improve
MTV probe' thread.

Originally committed as revision 20283 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2009-10-18 18:02:12 +00:00
parent a828d48cfc
commit f122ef36b1
1 changed files with 5 additions and 0 deletions
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5
libavformat/mtv.c
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@ -25,6 +25,7 @@
*/
#include "libavutil/bswap.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#define MTV_ASUBCHUNK_DATA_SIZE 500
@ -56,6 +57,10 @@ static int mtv_probe(AVProbeData *p)
if(*(p->buf) != 'A' || *(p->buf+1) != 'M' || *(p->buf+2) != 'V')
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;
return AVPROBE_SCORE_MAX;
}