Drop Windows XP support remnants

libavcodec/dxva2_h264.c

@@ -20,16 +20,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "dxva2_internal.h"
 #include "h264dec.h"
 #include "h264data.h"
 #include "h264_ps.h"
 #include "mpegutils.h"
 
-// The headers above may include w32threads.h, which uses the original
-// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
-// potentially newer version.
-#include "dxva2_internal.h"
-
 struct dxva2_picture_context {
     DXVA_PicParams_H264   pp;
     DXVA_Qmatrix_H264     qm;

libavcodec/dxva2_hevc.c

@@ -22,14 +22,10 @@
 
 #include "libavutil/avassert.h"
 
+#include "dxva2_internal.h"
 #include "hevc_data.h"
 #include "hevcdec.h"
 
-// The headers above may include w32threads.h, which uses the original
-// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
-// potentially newer version.
-#include "dxva2_internal.h"
-
 #define MAX_SLICES 256
 
 struct hevc_dxva2_picture_context {

libavcodec/dxva2_mpeg2.c

@@ -21,13 +21,10 @@
  */
 
 #include "libavutil/log.h"
-#include "mpegutils.h"
-#include "mpegvideo.h"
 
-// The headers above may include w32threads.h, which uses the original
-// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
-// potentially newer version.
 #include "dxva2_internal.h"
+#include "mpegutils.h"
+#include "mpegvideo.h"
 
 #define MAX_SLICES 1024
 struct dxva2_picture_context {

libavcodec/dxva2_vc1.c

@@ -20,15 +20,11 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "dxva2_internal.h"
 #include "mpegutils.h"
 #include "vc1.h"
 #include "vc1data.h"
 
-// The headers above may include w32threads.h, which uses the original
-// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
-// potentially newer version.
-#include "dxva2_internal.h"
-
 struct dxva2_picture_context {
     DXVA_PictureParameters pp;
     DXVA_SliceInfo         si;

libavutil/hwcontext_d3d11va.c

@@ -20,14 +20,6 @@
 
 #include <windows.h>
 
-// Include thread.h before redefining _WIN32_WINNT, to get
-// the right implementation for AVOnce
-#include "thread.h"
-
-#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
-#endif
 #define COBJMACROS
 
 #include <initguid.h>
@@ -46,6 +38,7 @@
 #include "imgutils.h"
 #include "pixdesc.h"
 #include "pixfmt.h"
+#include "thread.h"
 
 typedef HRESULT(WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory);
 

libavutil/hwcontext_dxva2.c

@@ -18,10 +18,6 @@
 
 #include <windows.h>
 
-#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
-#endif
 #define DXVA2API_USE_BITFIELDS
 #define COBJMACROS