[MPlayer-dev-eng] dsputil_mmx.c: -O2

Hervé W. H.O.W.aka.V+mplayer at gmail.com
Sun Sep 17 21:54:23 CEST 2006


Hi Carl,

On 17/09/06, Carl Eugen Hoyos wrote:
> Attached patch improves H264 decoding speed on my Athlon XP 2600+ by ~3%.
> Tested with gcc 4.0.2 and 4.0.3.

Perhaps some tests with gcc 4.1.1, gcc 3.4.6 and 2.95.3 are in order?

> Index: libavcodec/Makefile

libavcodec? shouldn't this patch go to ffmpeg-devel instead of mplayer-dev-eng?

> ===================================================================
> --- libavcodec/Makefile (Revision 6286)
> +++ libavcodec/Makefile (Arbeitskopie)
> @@ -295,6 +295,7 @@
>        i386/motion_est_mmx.o \
>        i386/simple_idct_mmx.o i386/fft_sse.o i386/vp3dsp_mmx.o \
>        i386/vp3dsp_sse2.o i386/fft_3dn.o i386/fft_3dn2.o i386/snowdsp_mmx.o
> +i386/dsputil_mmx.o: CFLAGS+= -O2
>  ifeq ($(CONFIG_GPL),yes)
>  OBJS += i386/idct_mmx.o i386/idct_mmx_xvid.o
>  endif

-V



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