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| author | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2017-09-29 19:10:46 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2017-09-30 20:41:52 +0200 |
| commit | e9f9175db60ac67e906f8ad0709129843ab41d14 (patch) | |
| tree | ac1824713ed88f7358425059ffe76f77a04c218f /libavformat/bit.c | |
| parent | 67057aaeb23d84144b2b371547fd46e915be238f (diff) | |
| download | ffmpeg-e9f9175db60ac67e906f8ad0709129843ab41d14.tar.gz | |
lavf/bit: Fix the G.729 bit auto-detection.
Diffstat (limited to 'libavformat/bit.c')
| -rw-r--r-- | libavformat/bit.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/libavformat/bit.c b/libavformat/bit.c index d742a5b363..76aae2d4a1 100644 --- a/libavformat/bit.c +++ b/libavformat/bit.c @@ -32,20 +32,23 @@ #if CONFIG_BIT_DEMUXER static int probe(AVProbeData *p) { - int i, j; + int i = 0, j, valid = 0; - if(p->buf_size < 0x40) - return 0; - - for(i=0; i+3<p->buf_size && i< 10*0x50; ){ - if(AV_RL16(&p->buf[0]) != SYNC_WORD) + while (2 * i + 3 < p->buf_size){ + if (AV_RL16(&p->buf[2 * i++]) != SYNC_WORD) return 0; - j=AV_RL16(&p->buf[2]); - if(j!=0x40 && j!=0x50) + j = AV_RL16(&p->buf[2 * i++]); + if (j != 0 && j != 0x10 && j != 0x40 && j != 0x50 && j != 0x76) return 0; - i+=j; + if (j) + valid++; + i += j; } - return AVPROBE_SCORE_EXTENSION; + if (valid > 10) + return AVPROBE_SCORE_MAX; + if (valid > 2) + return AVPROBE_SCORE_EXTENSION - 1; + return 0; } static int read_header(AVFormatContext *s) |