[MPlayer-dev-eng] Re: Compile options

[Carl Eugen Hoyos]

Andrew Savchenko <Bircoph <at> list.ru> writes:

[...]

> Results for MPEG4:
> ==> General -O4 build:
> 
> vc: (8.835 \pm 0.019)s
> vo: (176.051 \pm 0.070)s
> user: 1m(45.945 \pm 0.152)s
> 
> ==> General -O4 build, -fno-inline-functions for dsputil_mmx.o:
> 
> vc: (8.974 \pm 0.029)s
> vo: (176.092 \pm 0.142)s
> user: 1m(46.189 \pm 0.143)s

MPEG-4 tests with MPlayer dev-SVN-r19920-4.0.2:
./mplayer test.avi -benchmark -nosound -vo xv
-O4:
BENCHMARKs: VC:  14.133s VO:   4.587s A:   0.000s Sys:   1.171s =   19.892s
BENCHMARKs: VC:  14.148s VO:   4.602s A:   0.000s Sys:   1.152s =   19.902s
BENCHMARKs: VC:  14.207s VO:   4.511s A:   0.000s Sys:   1.167s =   19.886s

-O4, -fno-inline-functions for dsputil_mmx.o:
BENCHMARKs: VC:  13.790s VO:   4.554s A:   0.000s Sys:   1.148s =   19.492s
BENCHMARKs: VC:  13.715s VO:   4.523s A:   0.000s Sys:   1.150s =   19.388s
BENCHMARKs: VC:  13.750s VO:   4.587s A:   0.000s Sys:   1.113s =   19.450s

Would it be possible for you to repeat your tests with -vo xv or -vo null? I saw
your options in an earlier email now (-vo x11 -zoom -sws 10 -fs), and if I use
them, real time playback isn't possible for any of my samples, so perhaps this
is the reason why our results differ so much.

Anyway, can you confirm that -finline-functions produces the binary-identical
dsputil_mmx.o and that -fno-inline-functions reduces code size by ~2/3?
(For me, dsputil_mmx.o shrinks from 536128 to 171840.)

Could somebody else repeat the test for H264 and MPEG-4?

Carl Eugen