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Old 23rd November 2008, 11:24   #27  |  Link
madshi
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Join Date: Sep 2006
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I'm not sure if such a logic would really solve all problems. Sure, if the movie itself is 5.1 and there are only very small and short switches to 2.0 (e.g. during ads) then this might work just fine. But what happens if larger parts of the movie switch to 2.0? Then larger parts of the audio track would be silent.

My preferred solution would be to decode 2.0 frames and reencode them to 5.1, while leaving 5.1 frames as they are. Not really sure if that would work, though. Maybe such a mixed track should be fully decoded and reencoded to clear up any problems? Of course decoding would then have to properly handle the 2.0 fragments. E.g. my eac3to tool currently doesn't do that.
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