vlc + vaapi and nvidia performance

2011-07-18 Thread Andrew Z
I spent some silly amount of time trying to get all three to perform together. Finally i guess i succeeded, but the results are nowhere to be excited about. It takes about 40 minutes to transcode of ~800MB avi to mpeg on my ancient Sempron system with 2GB and GT240(512MB) with GPU enabled and ~30m

Re: vlc + vaapi and nvidia performance

2011-07-18 Thread Phong Nguyen
Even an old Sempron will probably decode most AVIs (MPEG-4 ASP?) with low CPU load; shuffling things to and from the GPU probably won't buy you much and in this case probably costs you overhead. Compressing to MPEG is also probably being done in software and not on the GPU; I'm not aware if ther

Re: vlc + vaapi and nvidia performance

2011-07-18 Thread Andrew Z
Phong Nguyen wrote: Even an old Sempron will probably decode most AVIs (MPEG-4 ASP?) with low CPU load; shuffling things to and from the GPU probably won't buy you much and in this case probably costs you overhead. Compressing to MPEG is also probably being done in software and not on the GPU;

Re: vlc + vaapi and nvidia performance

2011-07-18 Thread Phong Nguyen
On 18 Jul 2011, at 1704, Andrew Z wrote: > Phong Nguyen wrote: > Even an old Sempron will probably decode most AVIs (MPEG-4 ASP?) with low CPU > load; shuffling things to and from the GPU probably won't buy you much and in > this case probably costs you overhead. Compressing to MPEG is also pro

Re: vlc + vaapi and nvidia performance

2011-07-19 Thread Dr Andrew C Aitchison
On Mon, 18 Jul 2011, Andrew Z wrote: I spent some silly amount of time trying to get all three to perform together. Finally i guess i succeeded, but the results are nowhere to be excited about. It takes about 40 minutes to transcode of ~800MB avi to mpeg on my ancient Sempron system with 2GB an