increase the maximum AC3 probe buffer size and reduce the threshold for 50% reliability score to 2 frames. Fixes out.ac3 from [FFmpeg-devel] AC3 Format Detection unreliable.

Originally committed as revision 9920 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2007-08-04 23:53:05 +00:00
parent f683dbdc6a
commit c49c02231c

View File

@ -419,7 +419,7 @@ static int ac3_probe(AVProbeData *p)
max_frames = 0;
buf = p->buf;
end = buf + FFMIN(4096, p->buf_size - 7);
end = buf + FFMIN(5120, p->buf_size - 7);
for(; buf < end; buf++) {
buf2 = buf;
@ -434,7 +434,7 @@ static int ac3_probe(AVProbeData *p)
first_frames = frames;
}
if (first_frames>=3) return AVPROBE_SCORE_MAX * 3 / 4;
else if(max_frames>=3) return AVPROBE_SCORE_MAX / 2;
else if(max_frames>=2) return AVPROBE_SCORE_MAX / 2;
else if(max_frames>=1) return 1;
else return 0;
}