2012-05-09, 23:44
I have been a happy camper with 10.1 on a windows XP media center PC for a long time. Recently i have started to try encoding my Tivo recordings into h.264/mkv for archival purposes - using ffmpeg on linux (because that's the only system up 24 hours and i know how to automate stuff). The results with 10.1 where dismal: The files don't really play, and i don't understand why. Other h264/mkv files, not created by myself work fine on 10.1.
Upgrading to 11.0 created annoying results: The h.264/mkv files i created where playing back "fine". Except that all playback with 11.0 takes up about three times the CPU as with 10.1, so any 720p files i play back is loosing some 10..15% of frames (frame drops), and 1080p24 doesn't really work at all - 70% frame drops. With 10.1 i seldomnly hit any frame drops at all and then only with 1080p.Applies to my own and foreign encoded files. So i went back to 10.1 for now.
Any suggestions ?
a) is this high increase in CPU load 10.1 -> 11.0 expected ? If not, what steps should i take to diagnose where it comes from ?
b) anyone having pointers to recommendations what parameters and/or programs to use to encode into h.264/mkv to create files that would be as close as possible to whatever XBMC is hopefully best tested with ?
Thanks
Upgrading to 11.0 created annoying results: The h.264/mkv files i created where playing back "fine". Except that all playback with 11.0 takes up about three times the CPU as with 10.1, so any 720p files i play back is loosing some 10..15% of frames (frame drops), and 1080p24 doesn't really work at all - 70% frame drops. With 10.1 i seldomnly hit any frame drops at all and then only with 1080p.Applies to my own and foreign encoded files. So i went back to 10.1 for now.
Any suggestions ?
a) is this high increase in CPU load 10.1 -> 11.0 expected ? If not, what steps should i take to diagnose where it comes from ?
b) anyone having pointers to recommendations what parameters and/or programs to use to encode into h.264/mkv to create files that would be as close as possible to whatever XBMC is hopefully best tested with ?
Thanks