[FFmpeg-devel] [PATCH] dxva2 mingw

[Kyle]

On 2/18/2011 9:48 PM, M?ns Rullg?rd wrote:
> Kyle<kshawkeye at gmail.com>  writes:
>
>> This patch needs to be applied to FFmpeg before dxva2 will build with mingw
>>
>> diff --git a/libavcodec/dxva2_internal.h b/libavcodec/dxva2_internal.h
>> index a9be7a0..23d4d87 100644
>> --- a/libavcodec/dxva2_internal.h
>> +++ b/libavcodec/dxva2_internal.h
>> @@ -23,6 +23,8 @@
>>   #ifndef AVCODEC_DXVA_INTERNAL_H
>>   #define AVCODEC_DXVA_INTERNAL_H
>>
>> +#define _WIN32_WINNT 0x0600
>> +#define COBJMACROS
>>   #include "dxva2.h"
>>   #include "avcodec.h"
>>   #include "mpegvideo.h"
> Could you please explain why this is needed?  I'm not disputing that it
> is, nor am I rejecting the patch.  I am simply curious to know the reason.
>
FFmpeg fails to make with:

CC libavcodec/dxva2.o
In file included from libavcodec/dxva2_internal.h:26:0,
from libavcodec/dxva2.c:23:
libavcodec/dxva2.h:40:5: error: unknown type name ?IDirectXVideoDecoder?
libavcodec/dxva2.h:45:5: error: unknown type name
?DXVA2_ConfigPictureDecode?
libavcodec/dxva2.h:55:5: error: unknown type name ?LPDIRECT3DSURFACE9?
In file included from libavcodec/dxva2.c:23:0:
libavcodec/dxva2_internal.h:36:28: error: unknown type name
?DXVA2_DecodeBufferDesc?
libavcodec/dxva2_internal.h:45:51: error: unknown type name
?DXVA2_DecodeBufferDesc?
libavcodec/dxva2_internal.h:46:51: error: unknown type name
?DXVA2_DecodeBufferDesc?
libavcodec/dxva2.c:46:28: error: unknown type name ?DXVA2_DecodeBufferDesc?
libavcodec/dxva2.c:83:51: error: unknown type name ?DXVA2_DecodeBufferDesc?
libavcodec/dxva2.c:84:51: error: unknown type name ?DXVA2_DecodeBufferDesc?
make: *** [libavcodec/dxva2.o] Error 1

Without it.