[FFmpeg-devel] [PATCH] Fix apply_welch_window_sse2 compilation on Mac OS X/x86

[Graham Booker]

What I did there turns optimizations ON!  These are the minimum  
optimizations necessary for the files to build.  These files only  
fail to build if you have certain optimizations off, which is what I  
assumed you were trying to do in the first place, otherwise it would  
have just built.

most likely you are missing the omit-frame-pointer, but you also need  
at least O1.  It works with O3 as well.

On Oct 17, 2007, at 8:59 AM, Pierre d'Herbemont wrote:

> Thanks, but what is the point of having no optimization? This patch
> should just work.
>
> Pierre.
>
> On Oct 17, 2007, at 3:40 PM, Graham Booker wrote:
>
>> If you do:
>> cd libavcodec
>> export CFLAGS="-O1 -fomit-frame-pointer -funit-at-a-time"; make
>> h264.o cabac.o i386/dsputil_mmx.o h264_parser.o
>> unset CFLAGS;
>> cd ..
>>
>> Then you can build everything else without the optimizations
>> enabled for those four files.
>>
>>
>> On Oct 17, 2007, at 3:29 AM, Pierre d'Herbemont wrote:
>>
>>> Hi,
>>>
>>> Here is a fix for:
>>>
>>> i386/dsputil_mmx.c:3003: error: can't find a register in class
>>> 'GENERAL_REGS' while reloading 'asm'
>>> i386/dsputil_mmx.c:3005: error: can't find a register in class
>>> 'GENERAL_REGS' while reloading 'asm'
>>> make[4]: *** [i386/dsputil_mmx.o] Error 1
>>> make[3]: *** [lib] Error 2
>>> make[2]: *** [.ffmpeg] Error 2
>>> make[1]: *** [src] Error 2
>>>
>>> We don't have enough free registers around on Mac OS X/x86. Feel
>>> free to commit a better fix.
>>>
>>> Pierre.<osx_intel_apply_welch_window_sse2.diff.txt>_________________ 
>>> _
>>> _____________________________
>>> ffmpeg-devel mailing list
>>> ffmpeg-devel at mplayerhq.hu
>>> http://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-devel
>>
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>
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