[x264-devel] MSVC patch test results under MSVC 2013

[肖卫华]

是，cf

发自我的 iPad

在 2014-3-24，18:33，Martin Storsjö <martin at martin.st> 写道：

> On Mon, 24 Mar 2014, Joe Stevens wrote:
> 
>> All,
>> First, many thanks to Matt, Steve, and Martin for posting various patchs to
>> allow compilation with MSVC.  I was able to sucessfully apply them to latest
>> x264 source and build with the latest current release of MSVC 2013. 
>> However, it looks as if (1) the submitted patches don't allow compilation of
>> AviSynth support, and (2) for some reason x264 compiled with MSVC is much
>> slower than the latest GCC.  Details follow:
>> 1. Compilation:
>> [output with default 'configure' results]
>> cl -DNDEBUG -O2 -W0 -I. -I. -nologo -DHAVE_STRING_H -I./extras  -c
>> -Foinput/avs.
>> o input/avs.c
>> avs.c
>> input/avs.c(383) : error C2275: 'AVS_VideoFrame' : illegal use of this type
>> as a
>> n expression
>>         .\extras/avisynth_c.h(390) : see declaration of 'AVS_VideoFrame'
>> input/avs.c(383) : error C2065: 'frm' : undeclared identifier
>> input/avs.c(389) : error C2065: 'frm' : undeclared identifier
>> input/avs.c(390) : error C2065: 'frm' : undeclared identifier
>> make: *** [input/avs.o] Error 2
> 
> This looks like one of the main bugs in MSVC 2013 which is fixed in the upcoming update2 (you can download the CTP version of the update already), see https://connect.microsoft.com/VisualStudio/feedback/details/808472 for details.
> 
> If you use this version of MSVC 2013, you only need the two patches that I posted, nothing else. If not, some of the other patches that were posted might need to be extended to work around more issues that crop up all the time - but it's quite futile to try to work around those issues since it will be fixed properly quite soon.
> 
> 
> As for performance, MSVC doesn't support inline assembly, so that might be one casuse for the lower performance.
> 
> // Martin
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