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Aleksey Sudakov blog October 2005 Entries
AVC performance (processor requirements)
Despite very good compression results the main problem of AVC is processor requirements. For me it would translate into very simple problem - SD (480p) AVC will not play on XBOX (733 MHz CPU), at least for now, untill x264 is optimized. On the other hand, encoding into AVC is quite expensive too. The following table summarize 2 pass encoding done on different CPUs (Single pass generally could be done twice as fast). CPU Video Enc FPS MoM % Real P3 866MHz 20 fps 2.137/2.034 19 min 5% M 1.6GHz 20 fps ......

Posted On Friday, October 28, 2005 9:15 AM

AVC beats ASP for 480p
What a difference "clean sources" could make! Playing with new version of x264 (r341) and clean DV25 sources it become quite obvious that x264 could be pushed bellow 500kbps@30fps (but still above 400kbps) and thus beat ASP head on. Since one cannot go significantly bellow 500kbps, the only option to stream SD at bellow 0.5Mbps is to encode at lower frame rates. In most cases 15 fps is quite adequate. This brings us to 200-250kbps for video that translates into less then 1MB per 30 sec. or 2MB per ......

Posted On Thursday, October 27, 2005 2:49 PM

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