gwerhart0800
10-16-2007, 06:51 PM
I have been extremely pleased with the iPhone conversion, but I am wondering if it would be possible to squeak some speed out of the conversion by supporting multiple threads, allowing for optimum performance on multi-core CPUs. I realize that this probably means that ffmpeg needs to get multithreaded. A simpler implementation would be to allow multiple conversions to run at the same time ... one per CPU core.
Thanks,
George
Midiman
10-16-2007, 09:56 PM
You'll have to edit the specific profiles you're using. In the Video/Advanced tab you'll find a threads setting.
gwerhart0800
10-18-2007, 12:12 AM
Awesome ... thanks ... makes me want to upgrade to a quad-core. :D
gwerhart0800
10-18-2007, 06:24 PM
I upped the thread count from 1 to 2 ... matching my dual core CPU and saw no improvement in the performance. I then tried additional thread counts up to 16 with no improvement. The bulk of the CPU is consumed by ffmpeg.exe which seems to be solidly a single threaded process.