[Ffmpeg-devel] [REQUEST] MMX/MMX2 and SSE optimizations for H.264 decoding
Fri Sep 16 18:29:52 CEST 2005
El Fri, Sep 16, 2005 at 02:26:06PM +0200, Martin Boehme escribio:
> This was for all resolutions?
> A while ago, I tried some of the Apple trailers under MPlayer on my 1.6
> GHz Pentium M. My (hazy) recollection is that the 960x540 trailers
> played at full speed, the 1280x720 were slightly slower than real time,
> and I think I didn't even try 1920x1080.
Here it "almost" work:
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Sempron(tm) 2500+
stepping : 1
cpu MHz : 1751.917
cache size : 256 KB
$ mplayer -vo null -benchmark -frames 1000 -nosound bbc-africa_m720p.mov -demuxer 35
V: 37.0 1002/1002 1580% 0% 0.0% 0 0
BENCHMARKs: VC: 26.371s VO: 0.010s A: 0.000s Sys: 0.368s = 26.749s
BENCHMARK%: VC: 98.5878% VO: 0.0372% A: 0.0000% Sys: 1.3750% = 100.0000%
So, 1000 frames in 26.75 seconds is 37 fps, more than enough.
Using -vo xv, it plays at 95% speed in fullscreen.
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