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Old 16th May 2010, 21:17   #9998  |  Link
jruggle
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Join Date: Jul 2006
Posts: 276
Quote:
Originally Posted by Abradoks View Post
No, I didn't. But those tracks haven't DRC, so with -drc_scale 0 ffmpeg produces identical files.
Ok, then there are a few things left to investigate.

1) If FFmpeg is modified to give floating-point output will the results be closer to eac3to. I think this is likely. If not, what other libavcodec patches is Madshi using?

2) The first drop is probably at the rematrixing start point for the stereo sample and at the coupling start point for the 5.1 samples. First step is to verify this. If so, that gives a good starting point for investigation.

3) See what the Nero decoder does compared to liba52 and libavcodec.

What program did you use to make the graphs? I want to use it in my comparisons as well.
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