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View Full Version : GK+Xvid+really long movie = bitrate way too high, then way too low


collector83
16th November 2008, 20:15
My current setup is GK v0.35 and Xvid v1.0.3 (the version that comes with the codec pack). I'm a newbie at encoding, but I have had previous success using my current setup, encoding several 45 minute tv programs at 1/2 CD and always getting the correct file size on a 2-pass encode.

Now, I'm trying my first really long movie. The movie is nearly 270 minutes in length. I'm asking it for 2 CDs (1400 MB) and getting pretty close, but the bitrate is screwed up. For the first 30 minutes or so, the bitrate is extremely high. I took a sample from CD1 and Gspot said it had a bitrate of 3671 kbps. Of course, after the first half hour or so there's no space left for a decent looking bitrate and so the rest of the movie looks terrible. A sample from CD2 has a bitrate of only 214 kbps.

The movie itself is kind of a low budget homemade effort with distorted audio, and there is a chance that it was shrunk from DVD9 to fit on DVD5, would that confuse Xvid somehow? I kept all the files from my most recent attempt so I can post a log or anything else that would help.

CWR03
16th November 2008, 22:20
Perhaps you set a "credits start" point before, and that's still in place. The only way to clear it is to set it back to default.

I would recommend splitting the movie beforehand with DGIndex, then encoding each half separately.

collector83
16th November 2008, 23:38
Credits start occurred to me earlier, but I don't recall ever using that feature. The problem resolved itself after I did the unthinkable: uninstall/reinstall xvid. Today's attempt at encoding gave me a perfectly sized (CD1=699MB, CD2=699MB) 2cd rip with a good bitrate in the neighborhood of 1000kbps all the way through the film. My first proper 2cd encode!