Extremely long Compressor rendering times for 24p
Hello, I've worked with Compressor a lot for several years... but I'm trying something new and have run into an issue - 40+ hours to render a 4.5 minute piece!
When encoding 23.98 HD footage in the past, I've used Compressor to handle the speed change to 29.97. However, since that isn't really adding a 3:2 pulldown, which I really want, I tried exporting a QT reference file from FCP - then reimporting it and editing it into a 29.97 sequence. Every other sequence setting remained the same as the clip.
Then I chose export to compressor. I'm encoding for SD DVD, and need the highest visual quality possible. So my settings are:
NTSC, 29.97, 4:3, bottom first
Two pass VBR encoding with a 6.5 Mbps average, and 8.3 maximum bit rate, Motion estimation is best
IBBP GOP structure, with a 7 frame size
Frame controls are all Best, except rate conversion which is Fast. Adaptive details, Anti Alias, and Details are off
I have letterbox, BlackWhite restore and Brightness filters applied
I tried encoding a sequence I know well with setting I use all of the time for web distribution, and got normal rendering times... so I don't suspect something wrong with the software. I also just tried a "renice" utility to try to give more processor priority to Compressor - but that hasn't changed anything.
Activity Monitor shows the processors are cycling between 10 and 70% - spending the majority of the time near 10% for some reason!
How can I still get a 3:2 pulldown with the highest quality video for DVD without waiting 2 days for a 4 1/2 minute clip?!
When encoding 23.98 HD footage in the past, I've used Compressor to handle the speed change to 29.97. However, since that isn't really adding a 3:2 pulldown, which I really want, I tried exporting a QT reference file from FCP - then reimporting it and editing it into a 29.97 sequence. Every other sequence setting remained the same as the clip.
Then I chose export to compressor. I'm encoding for SD DVD, and need the highest visual quality possible. So my settings are:
NTSC, 29.97, 4:3, bottom first
Two pass VBR encoding with a 6.5 Mbps average, and 8.3 maximum bit rate, Motion estimation is best
IBBP GOP structure, with a 7 frame size
Frame controls are all Best, except rate conversion which is Fast. Adaptive details, Anti Alias, and Details are off
I have letterbox, BlackWhite restore and Brightness filters applied
I tried encoding a sequence I know well with setting I use all of the time for web distribution, and got normal rendering times... so I don't suspect something wrong with the software. I also just tried a "renice" utility to try to give more processor priority to Compressor - but that hasn't changed anything.
Activity Monitor shows the processors are cycling between 10 and 70% - spending the majority of the time near 10% for some reason!
How can I still get a 3:2 pulldown with the highest quality video for DVD without waiting 2 days for a 4 1/2 minute clip?!
2x3GHz Duel Core MacPro, Mac OS X (10.5.6), 6GB RAM
