avformat/dvbsub: check for 0xf0 earlier in probe, 30% faster

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 3bf2b376e6
parent 0e1c827e84
commit 3bf2b376e6
1 changed files with 2 additions and 0 deletions
--- a/libavformat/dvbsub.c
+++ b/libavformat/dvbsub.c
@ -33,6 +33,7 @@ static int dvbsub_probe(AVProbeData *p)
    int max_score = 0;

    for(i=0; i<p->buf_size; i++){
+        if (p->buf[i] == 0x0f) {
        const uint8_t *ptr = p->buf + i;
        uint8_t histogram[6] = {0};
        int min = 255;
@ -55,6 +56,7 @@ static int dvbsub_probe(AVProbeData *p)
        }
        if (min && j > max_score)
            max_score = j;
+        }
    }

    if (max_score > 5)