The XviD compression completed in an estimated 12 hours, taking a one-hour episode of Star Trek Voyager (The Q and the Grey, if you're curious) from 2.2GB to 68MB.
To try and keep all things equal, the XviD preferences were copied to the DIVX section, and the same file was set up for transcoding (this time, running in a screen session, so it can be detached without losing the output this time).
Curiously, thie DIVX option ended up bombing the first time. Maybe it doesn't like running in screen. Alas. One more try before I call it quits...
Nope. Another 9-hour task down the drain.
ffmpeg had critical errors:
Error while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
Because I have other things to do, I might as well give the machine something to do while waiting for me. The Ubuntu forums have a suggestion on settings that I'll try using. In particular, the poster seems to prefer one-pass instead of two-pass encoding, which may help in this case, as the error seems to occur when setting up for pass 2.
And so it did. Divx completed in about 8 hours, with a final file size of 268MB. Not quite the space savings as XviD, but a fair increase in overall speed (well, sure, since it only made one pass).
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