[MPlayer-users] How can I force mplayer to drop frames more consistently?

belcampo belcampo at zonnet.nl
Wed Apr 21 06:03:10 CEST 2010


Dark Shadow wrote:
> I am trying to watch a 1920x1080/60p h264 file and -framedrop makes to
> video unwatchable due to dropping to many frames all at once making
> the video jumpy. I would like to force it to just drop every second
> frame which would make it a consistent 29.97 frame rate which is still
> very good. I am using vdpau but my card maxes out at decoding 48 1080p
> frames a second. Which is more then enough for any retail media but
> new camcorders have the option of 60 frames.
Off-Topic, if one doesn't need slow-motion and the human-eye needs .05 
seconds to view a picture, what is the benefit of those very high(er) 
framerates ?
> 
> Lastly is their any chance that future ffh264vdpau codec of Nvidia
> driver refinement could result in better performance.
> 
> My performance test with consistent result:
> 
> 
> qvdpautest 0.5
> Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz
> NVIDIA GPU GeForce GTS 250M (GT215) at PCI:1:0:0 (GPU-0)
> 
> VDPAU API version : 1
> VDPAU implementation : NVIDIA VDPAU Driver Shared Library  195.36.15
> Fri Mar 12 01:18:10 PST 2010
> 
> SURFACE GET BITS: 889.972 M/s
> SURFACE PUT BITS: 863.271 M/s
> 
> MPEG DECODING (1920x1080): 53 frames/s
> MPEG DECODING (1280x720): 120 frames/s
> H264 DECODING (1920x1080): 48 frames/s
> H264 DECODING (1280x720): 99 frames/s
> VC1 DECODING (1440x1080): 36 frames/s
> MPEG4 DECODING (1920x1080): 53 frames/s
> 
> MIXER WEAVE (1920x1080): 492 frames/s
> MIXER BOB (1920x1080): 816 fields/s
> MIXER TEMPORAL (1920x1080): 248 fields/s
> MIXER TEMPORAL + IVTC (1920x1080): 153 fields/s
> MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 326 fields/s
> MIXER TEMPORAL_SPATIAL (1920x1080): 152 fields/s
> MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 109 fields/s
> MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 178 fields/s
> MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 444 fields/s
> MIXER TEMPORAL_SPATIAL + HQSCALING (720x576 video to 1920x1080
> display): 333 fields/s
> 
> MULTITHREADED MPEG DECODING (1920x1080): 46 frames/s
> MULTITHREADED MIXER TEMPORAL (1920x1080): 186 fields/s
> _______________________________________________
> MPlayer-users mailing list
> MPlayer-users at mplayerhq.hu
> https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users



More information about the MPlayer-users mailing list