diff options
| -rw-r--r-- | libavformat/c93.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/libavformat/c93.c b/libavformat/c93.c index 11a0314c74..e829e395cc 100644 --- a/libavformat/c93.c +++ b/libavformat/c93.c @@ -21,6 +21,7 @@ #include "avformat.h" #include "voc.h" +#include "libavutil/intreadwrite.h" typedef struct { uint16_t index; @@ -43,13 +44,16 @@ typedef struct { static int probe(AVProbeData *p) { - if (p->buf[0] == 0x01 && p->buf[1] == 0x00 && - p->buf[4] == 0x01 + p->buf[2] && - p->buf[8] == p->buf[4] + p->buf[6] && - p->buf[12] == p->buf[8] + p->buf[10]) - return AVPROBE_SCORE_MAX; - - return 0; + int i; + int index = 1; + if (p->buf_size < 16) + return 0; + for (i = 0; i < 16; i += 4) { + if (AV_RL16(p->buf + i) != index || !p->buf[i + 2] || !p->buf[i + 3]) + return 0; + index += p->buf[i + 2]; + } + return AVPROBE_SCORE_MAX; } static int read_header(AVFormatContext *s, |