They may also be referring to a fixed bitrate encode VS a variable bitrate encode as in a multiple pass encode.
A two pass encode will also take twice as long. In a very high variable bitrate encode, the quality will often be the same as a single pass fixed bitrate encode at the same bitrate. This can allow you to make better use of the available bitrate in a low bitrate encode. It then takes that pass and uses it a a guide for the next pass(es). Static scenes can get away with less bitrate while fast action scenes may need more. It could be variable or fixed bitrate.Ī mulitipass variable bitrate encode makes a first pass to set the distribution of bitrate by what's in the scenes. But could you explain for me one more thing? What are one-pass bitrate and two-pass bitrate? I'll take a shot at that, but I'm not sure about those exact terms. So, what you're saying is that there is no "fixed" settings for re-encoding from AVI to RMVB?īut there has to be like an "average" settings that work best, right? (wait, are we still talking about the Easy RealMedia Producer program?) I have a RMVB standalone player (it reads RMVB! no kidding)
The filesize will likely have to be higher than other Real videos as you need to make up for encoding losses. I would make up a short representative file of maybe 5 minutes and try different bitrates with Real till you get one that will give you the best quality vs filesize. That operation is mostly by 'feel' as we don't know what you started with. With Real, you would have to experiment with raising the bitrate until the quality is as good as the AVI file if you want to minimize quality loss. There are quality losses in the encoding process. JMO, but I would find something more universal, like Xvid.Īny output from a AVI type file to any other will lose quality. It's propitiatory, so no 'legal' converters exist except those from Real. I know 'Anime Types' like RMVB, but it's a terrible format, IMO.
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