I Can't play back 2K Quicktime Proxies

[Eugene Lehnert]

I'm working with a Quad-Core Intel Mac and a G-Raid Fibre channel raid. I am running FCP 6.04 with Quicktime 7.5.5 on OS X at 10.5.4 with 4 gigs of RAM. I thought I should be able to playback 2k proxies with a system like this? I can barely get the medium sized files to play. I have to drop the quality of the resolution down with the frame-rate set to full to get decent playback. Is this what other people are experiencing? Can I edit these proxies without an orange render bar?

 

[jimhare]

I get the same thing. I think this is the deal with using reference files.

I've taken to using RR or RC to make Pro Res for editing. Just easier.

 

[John Tissavary]

I'm working with a Quad-Core Intel Mac and a G-Raid Fibre channel raid. I am running FCP 6.04 with Quicktime 7.5.5 on OS X at 10.5.4 with 4 gigs of RAM. I thought I should be able to playback 2k proxies with a system like this? I can barely get the medium sized files to play. I have to drop the quality of the resolution down with the frame-rate set to full to get decent playback. Is this what other people are experiencing? Can I edit these proxies without an orange render bar?

That's because the i/o is less an issue with Redcode than the processor intensive duty of debayering. You'll need a MUCH faster system than what you have for realtime 2k debayering. There is currently only one way I know of to do that: Scratch running on an overclocked octo-core skulltrail based PC.

The proxies (or 'reference files' as they are now refered to) are typically used for offlining, where there's no need for 2k. If you do end up putting the 2k proxies on the timeline you'll be forced to render for realtime playback, for sure.

regards,

John T.

 

[jimhare]

Exactly. Having said that, I'm using 2k (and even 4k) reference files to edit with now as I'm just messing around. If you toggle quality from low to full and render once in a while, it actually works surprisingly well.

Even without full debayer they look pretty damn good!

 

[Nick Gallegos]

2K reference files even drop frames for me on an 8-core Mac Pro before rendering in FCP. As said before, debayering eats up an enormous amount of CPU cycles.

 

[Eugene Lehnert]

Ok

Ok

Even when I play the Quarter sized proxies I have a orange render bar. I can set the framerate to full and lower the quality of the picture. So then I can do my offline and then render out a high quality ProRes file to give my client a decent idea of what the final will look like?