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6th September 2011, 21:41 | #2 | Link |
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Join Date: Jan 2008
Posts: 185
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While mp4box is no speed demon, the limiting factor appears to be hard drive, not CPU speed. So if you use one (preferably fast HDD) for the source material and another (preferably faster SSD) for the output, you can achieve pretty good performance. Also the recent nightly GPAC builds of mp4box seem to help and be definitively less buggy.
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15th September 2011, 16:49 | #5 | Link |
Registered User
Join Date: Mar 2011
Posts: 4,829
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Compared to muxing MKVs with MKVToolnix, muxing MP4s with YAMB is like watching paint dry. The limiting factor might be hard drive speed but Yamb extracts the streams from the original MP4, writes a temporary file, then imports that file to write the new MP4, mostly using the same hard drive.
MKVToolnix seems to simply read the original file while it's writing the second and lets you read from one hard drive while it writes to another. Unless you particularly need to use an MP4 container, maybe consider switching to MKV. Or try this if you can live without a GUI: http://forum.doom9.org/showthread.php?t=152419 |
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