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author | Hendrik Leppkes <h.leppkes@gmail.com> | 2015-11-17 00:28:58 +0100 |
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committer | Hendrik Leppkes <h.leppkes@gmail.com> | 2015-11-29 10:41:51 +0100 |
commit | 2ea38a946dbd7c4528f5729f494758cfad491fa8 (patch) | |
tree | 2cf08eb54fa785685fbfbd0a35b775d3ad812832 /libavformat/mlpdec.c | |
parent | aa427537b529cd584cd73222980286d36a00fe28 (diff) | |
download | ffmpeg-2ea38a946dbd7c4528f5729f494758cfad491fa8.tar.gz |
avformat/mlpdec: consider all valid mlp access units when probing
Fixes probing of truehd/mlp files with a lot of frames in between the
major sync frames. The spec allows a distance of up to 128 frames in
between major sync frames, which leads to the probing code not reaching
the desired score.
Diffstat (limited to 'libavformat/mlpdec.c')
-rw-r--r-- | libavformat/mlpdec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/mlpdec.c b/libavformat/mlpdec.c index 2cce506d48..d82df219d9 100644 --- a/libavformat/mlpdec.c +++ b/libavformat/mlpdec.c @@ -29,16 +29,19 @@ static int av_always_inline mlp_thd_probe(AVProbeData *p, uint32_t sync) { const uint8_t *buf, *last_buf = p->buf, *end = p->buf + p->buf_size; int frames = 0, valid = 0, size = 0; + int nsubframes = 0; for (buf = p->buf; buf + 8 <= end; buf++) { if (AV_RB32(buf + 4) == sync) { frames++; if (last_buf + size == buf) { - valid++; + valid += 1 + nsubframes / 8; } + nsubframes = 0; last_buf = buf; size = (AV_RB16(buf) & 0xfff) * 2; } else if (buf - last_buf == size) { + nsubframes++; size += (AV_RB16(buf) & 0xfff) * 2; } } |