diff options
author | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-12-09 16:51:00 +0400 |
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committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-12-09 16:51:00 +0400 |
commit | c5a837658acd3e65029e6c8b52dd6cdffdb608b0 (patch) | |
tree | 86ac3788f3c91fe6dc38c8654c733ed93b33428a /libavformat/adp.c | |
parent | 45fd4ec9ef2b3a7074c49cdddac6e7dcc127a874 (diff) |
Do not detect "00000000..." (and other non-changing values) as adp.
Diffstat (limited to 'libavformat/adp.c')
-rw-r--r-- | libavformat/adp.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libavformat/adp.c b/libavformat/adp.c index c5feac4fa5..08a4225e46 100644 --- a/libavformat/adp.c +++ b/libavformat/adp.c @@ -26,14 +26,21 @@ static int adp_probe(AVProbeData *p) { - int i; + int i, changes = 0; + char last = 0; if (p->buf_size < 32) return 0; - for (i = 0; i < p->buf_size - 3; i+=32) + for (i = 0; i < p->buf_size - 3; i+=32) { if (p->buf[i] != p->buf[i+2] || p->buf[i+1] != p->buf[i+3]) return 0; + if (p->buf[i] != last) + changes++; + last = p->buf[i]; + } + if (changes <= 1) + return 0; return p->buf_size < 260 ? 1 : AVPROBE_SCORE_MAX / 4; } |