2-Pass Questions.

[Piggy]

From what I understand, multi-pass encoding analyses the video and writes to a log file on the first pass and then, it uses the information gathered in the log file to actually adjust the bitrate and encode to file on the second pass.

It seems, that when I use 2-Pass settings with PSP Video 9 (2.x,) encoding is actually taking place on the first pass. Also, the file sizes for 2-Pass encoded video end up being about 25% larger than a standard 1-Pass encoding.

Does anyone know if this is the norm for 2-Pass encoding with PSP Video 9? Any info would be greatly appreciated. Thanks.

[Jdemon]

In my understanding that's correct. The first pass is reading and the second doing the actual encoding. The reason for the larger file should be because of the accuracy of the encoding as opposed to 1 pass which is kind of the "on the fly" way of encoding. If you do a test with the same video encoding a 1 pass and a 2 pass file then compare them you should see a definite improvement in the 2-pass...that's what is causing all the extra data.