diff options
| author | Daniel Verkamp <daniel@drv.nu> | 2009-10-09 18:24:47 +0000 |
|---|---|---|
| committer | Daniel Verkamp <daniel@drv.nu> | 2009-10-09 18:24:47 +0000 |
| commit | f19ae9ea4dbde5e9ffb19202e708443c111fc1cc (patch) | |
| tree | ee5e2444af86af352a43bec1d9164d82d98ce2f1 /libavformat/tmv.c | |
| parent | 0359289d1d2ac9f57a1d10f26c0e7b23c5a05230 (diff) | |
Stricter TMV probe
Originally committed as revision 20194 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/tmv.c')
| -rw-r--r-- | libavformat/tmv.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/libavformat/tmv.c b/libavformat/tmv.c index 566f562810..4561a030e9 100644 --- a/libavformat/tmv.c +++ b/libavformat/tmv.c @@ -43,10 +43,19 @@ typedef struct TMVContext { unsigned stream_index; } TMVContext; +#define PROBE_MIN_SAMPLE_RATE 5000 +#define PROBE_MAX_FPS 120 +#define PROBE_MIN_AUDIO_SIZE (PROBE_MIN_SAMPLE_RATE / PROBE_MAX_FPS) + static int tmv_probe(AVProbeData *p) { - if (AV_RL32(p->buf) == TMV_TAG) - return AVPROBE_SCORE_MAX; + if (AV_RL32(p->buf) == TMV_TAG && + AV_RL16(p->buf+4) >= PROBE_MIN_SAMPLE_RATE && + AV_RL16(p->buf+6) >= PROBE_MIN_AUDIO_SIZE && + !p->buf[8] && // compression method + p->buf[9] && // char cols + p->buf[10]) // char rows + return AVPROBE_SCORE_MAX / (p->buf[9] == 40 && p->buf[10] == 25)? 1 : 4; return 0; } |