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Re: H264 to MPEG-2 - very different transcode times

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Raven Plenty
Re: H264 to MPEG-2 - very different transcode times
on Sep 26, 2008 at 3:34:12 pm

I'm trying it now. I've made a 2-minute portion in Quicktime by using "trim to selection" then save as... to a new clip. Sure enough, Compressor is estimating about 1 hour to convert to mpeg-2.

Interesting though, I noticed that scrolling around the problem video in Quicktime is very jumpy with lots of lag, whereas the other file (the higher res animation clip that only takes 6 minutes to convert) scrolls much smoother.

So clearly the "problem" video has some issues. I just don't know if this is a normal range of performance with H.264. I would have thought the performance would be proportionate to the files respective bitrates and resolutions. Could Handbrake be producing "poorly encoded" H.264 that is harder to decode? I was kind of thinking that H.264 is H.264.

Learning is fun...



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