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Old 20th May 2006, 09:17   #1012  |  Link
berrinam
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Quote:
Originally Posted by modsoul
oh sorry. then i thought 2 pass would increase the quality a bit. i encoded a video at a 32 quantizer and the file size can out reall good. but the issue was the video was 640x480 and when i watched it full screen i saw a lot of blockyness. i thought 2 pass would make that better.

will it?
Yes and no. Doing a second pass after a constant quantizer encode will pretty much not add anything, because it won't have a a proper first pass. However, a 2pass encode to the same filesize will look better, because 2pass is simply a better algorithm. You should never really use constant quant, because constant quality mode is better.

Nevertheless, 32 quantizer is always going to be bad. You should experiment with values between 18 and 26.
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