On Sun, Apr 05, 2009 at 07:12:47AM -0400, The Wanderer wrote: > Oliver Seitz wrote: > > > Am 05.04.2009, 09:39 Uhr, schrieb Rilawich Ango > > <maillisting@xxxxxxxxx>: > >> When I use mplayer to play 720p (HD file) movie, it flickers so > >> much with the following message. What to do to make the movie > >> playing smoothly? ango > > > > It looks like mjpeg codec. > > > >> VIDEO: [jpeg] 1280x720 24bpp 30.000 fps 0.0 kbps ( 0.0 kbyte/s) > >> ========================================================================== > >> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family > >> Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG decoder) > >> ========================================================================== > > > > That in fact is not a video codec, but one still picture after > > another. It's got some advantages to use when cutting and assembling > > videos, but it's not a codec made for smooth playback. Due to the > > immense data rate mjpeg needs, I presume it's just data can not > > travel through your system fast enough. If you have to use mjpeg for > > playback, go buying several of the fastest harddisks (like 10000rpm > > types) and connect them in RAID0 or RAID5 array. That might give > > bandwith that can cope with mjpeg. > > Wouldn't storing the file on a RAM disk potentially also work, if disk > throughput is the problem? A little trick: use something like -cache 131072 -cache-min 40 (assuming you have at least 128 MB RAM free). The last values on the status line then tells you how full it is. It should start at 40%. If it reaches about 1% and only then starts stuttering your disk is too slow. If it increases up to about 50% then your disk is plenty fast enough. _______________________________________________ MPlayer-users mailing list MPlayer-users@xxxxxxxxxxxx https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users
