diff options
Diffstat (limited to 'chromium/third_party/ffmpeg/libavformat/dtsdec.c')
-rw-r--r-- | chromium/third_party/ffmpeg/libavformat/dtsdec.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/chromium/third_party/ffmpeg/libavformat/dtsdec.c b/chromium/third_party/ffmpeg/libavformat/dtsdec.c index 5c05758327f..23cbe93516a 100644 --- a/chromium/third_party/ffmpeg/libavformat/dtsdec.c +++ b/chromium/third_party/ffmpeg/libavformat/dtsdec.c @@ -34,6 +34,7 @@ static int dts_probe(AVProbeData *p) uint32_t state = -1; int markers[3] = {0}; int sum, max; + int64_t diff = 0; buf = p->buf; @@ -54,13 +55,17 @@ static int dts_probe(AVProbeData *p) if (state == DCA_MARKER_14B_LE) if ((bytestream_get_be16(&bufp) & 0xF0FF) == 0xF007) markers[2]++; + + if (buf - p->buf >= 4) + diff += FFABS(AV_RL16(buf) - AV_RL16(buf-4)); } sum = markers[0] + markers[1] + markers[2]; max = markers[1] > markers[0]; max = markers[2] > markers[max] ? 2 : max; if (markers[max] > 3 && p->buf_size / markers[max] < 32*1024 && - markers[max] * 4 > sum * 3) - return AVPROBE_SCORE_MAX/2+1; + markers[max] * 4 > sum * 3 && + diff / p->buf_size > 200) + return AVPROBE_SCORE_EXTENSION + 1; return 0; } |