5967 Views 4 Replies Latest reply: Jul 7, 2008 6:22 AM by Jeff A. Harrell
Do you then export QT movie with current settings (reference file)? If so, how long does it take compressor for you to encode a 2 hour video using Best Quality 120 min DVD encode? My video is acutally 1 hr 47 and is taking 16 hours. This is using my MacBook Pro 2.33 ghz with 2 gig ram. Is this to be expected for this machine? Or is there a better method that would be faster?
Just to clarify something, the difference between ProRes 422 and ProRes 422 HQ has nothing to do with SD versus HD.
ProRes 422 is a variable-bit-rate compressor. The regular version of the compressor will produce Quicktimes with a maximum data rate of 145 Mbps at 1920x1080x60i. The HQ version has more headroom, giving you up to 220 Mbps at 1920x1080x60i.
If you use a smaller raster (like 1440x1080, or even 720x480) you'll get smaller data rates. If you use a lower frame rate (like 23.976) you'll get smaller data rates. In both varieties, ProRes is a use-what-you-need compressor. A typical clip of very high complexity (a 3D scene with lots of particles and digital grain) on my system tops out at 160 Mbps, because it's 1440x1080x23.976.