On Thu, Feb 17, 2005 at 08:25:02AM +0100, Jiri Heryan wrote:
yeah, set it barely above the speed you need to read a movie. keep in mind 1x is 1.2 megabit/sec, so 8x is probably enough for any sane movie file, and 12x is certainly safe. lower values would be ok with large -cache sizes.
Most codecs defaults to 1500kbits for movie and 128 kbits for audio, so 1x is not enough at all, plus you must compensate random slowdowns which can appear, so 8x is minimum for me. 24x is maximum you should set when you use it for common work too. It is reasonably fast and has a minimum noise.
i didn't say 1x was enough, i just gave it as a base rate. in fact your 1500 is insanely low; a proper 2pass mpeg4 file will peak at 8 mbps or higher with most content! so you really do need 8x, for these rare peaks. there's little point in going over 8x, though. rich