Quote:
Originally Posted by FLX90
Would more passes bring me closer to the original without dramatically increasing the filesize?
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Multipass does not increase the filesize.
2 passes are typically used to hit a target size precisely e.g. in order to fill a disc. More than 2 passes is considered a waste of encoding time with little to no benefit for x264.
If the file size isn't critical one would normally prefer a 1 pass crf encode, e.g. --crf 16 or --crf 17 for very good quality. But as has been already said even when you encode with 1-pass ABR at around 17 Mbps it will be difficult to spot differences against your VC-1 source. Nothing to worry about.