diff options
| author | Paul B Mahol <onemda@gmail.com> | 2020-02-02 13:51:49 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-02-10 15:04:14 +0100 |
| commit | 9216ad2e46ad09a8d6810d52fcd8714ba3e39e44 (patch) | |
| tree | c3aa4aa0a0dc860a13b24cb6581958f8a2553875 | |
| parent | 5ad1c1a18a38883c5811153d81ac149391429a4d (diff) | |
avformat/tty: make probing strict for first 8 bytes
| -rw-r--r-- | libavformat/tty.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libavformat/tty.c b/libavformat/tty.c index 854a23c500..f889121e26 100644 --- a/libavformat/tty.c +++ b/libavformat/tty.c @@ -56,7 +56,13 @@ static int read_probe(const AVProbeData *p) if (!p->buf_size) return 0; - for (int i = 0; i < p->buf_size; i++) + for (int i = 0; i < 8 && i < p->buf_size; i++) + cnt += !!isansicode(p->buf[i]); + + if (cnt != 8) + return 0; + + for (int i = 8; i < p->buf_size; i++) cnt += !!isansicode(p->buf[i]); return (cnt * 100LL / p->buf_size) * (cnt > 400) * |