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avformat/musx: improve probing

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This commit is contained in:
Paul B Mahol 2020-09-03 17:50:45 +02:00
parent 4cfe8123ea
commit 69e22e21e3
1 changed files with 12 additions and 1 deletions
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13
libavformat/musx.c
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@ -20,12 +20,23 @@
*/ */
#include "libavutil/avassert.h" #include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h" #include "avformat.h"
#include "internal.h" #include "internal.h"
static int musx_probe(const AVProbeData *p) static int musx_probe(const AVProbeData *p)
{ {
if (memcmp(p->buf, "MUSX", 4)) unsigned version;
if (AV_RB32(p->buf) != MKBETAG('M','U','S','X'))
return 0;
version = AV_RL32(p->buf + 8);
if (version != 10 &&
version != 6 &&
version != 5 &&
version != 4 &&
version != 201)
return 0; return 0;
return AVPROBE_SCORE_MAX / 5 * 2; return AVPROBE_SCORE_MAX / 5 * 2;