[FFmpeg-devel] [PATCH 2/5] swscale: preparation for use of AV_CPU_FLAG_*

[Michael Niedermayer]

On Tue, Sep 28, 2010 at 12:25:00AM +0200, Janne Grunau wrote:
> add dsp_mask to swsContext and AVOptions to fill them
> add function to convert sws_cpu_caps* to av_cpu_flag*
[...]
> @@ -748,6 +755,26 @@ SwsContext *sws_alloc_context(void){
>      return c;
>  }
>  
> +static unsigned sws_cpu_caps2av_cpu_flags(int flags)
> +{
> +        unsigned cpuflags = 0;
> +
> +        if (ARCH_X86 && flags & SWS_CPU_CAPS_MMX)
> +            cpuflags |= AV_CPU_FLAG_MMX;
> +        if (ARCH_X86 && flags & SWS_CPU_CAPS_MMX2)
> +            cpuflags |= AV_CPU_FLAG_MMX2;
> +        if (ARCH_X86 && flags & SWS_CPU_CAPS_3DNOW)
> +            cpuflags |= AV_CPU_FLAG_3DNOW;;
> +        if (ARCH_X86 && flags & SWS_CPU_CAPS_SSE2)
> +            cpuflags |= AV_CPU_FLAG_SSE2;
> +        if (ARCH_PPC && flags & SWS_CPU_CAPS_ALTIVEC)
> +            cpuflags |= AV_CPU_FLAG_ALTIVEC;
> +        if (ARCH_BFIN && flags & SWS_CPU_CAPS_BFIN)
> +            cpuflags |= AV_CPU_FLAG_BFIN;
> +
> +        return cpuflags;
> +}
> +
>  int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter){
>      int i;
>      int usesVFilter, usesHFilter;

please put compatibility code under if version so they will be removed with the
next major bump

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Complexity theory is the science of finding the exact solution to an
approximation. Benchmarking OTOH is finding an approximation of the exact
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