[FFmpeg-cvslog] Drop Windows XP support remnants

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Mon Apr  2 01:06:18 2018 +0200| [8f144d9e3d5cb2ca92e5bdf7cc9f72effa1bd2ce] | committer: Diego Biurrun

Drop Windows XP support remnants

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8f144d9e3d5cb2ca92e5bdf7cc9f72effa1bd2ce
---

 libavcodec/dxva2_h264.c       | 6 +-----
 libavcodec/dxva2_hevc.c       | 6 +-----
 libavcodec/dxva2_mpeg2.c      | 7 ++-----
 libavcodec/dxva2_vc1.c        | 6 +-----
 libavutil/hwcontext_d3d11va.c | 9 +--------
 libavutil/hwcontext_dxva2.c   | 4 ----
 6 files changed, 6 insertions(+), 32 deletions(-)

diff --git a/libavcodec/dxva2_h264.c b/libavcodec/dxva2_h264.c
index 50e7863bf2..790e4a214b 100644
--- a/libavcodec/dxva2_h264.c
+++ b/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;
diff --git a/libavcodec/dxva2_hevc.c b/libavcodec/dxva2_hevc.c
index 02d3b9b152..d2d80802a2 100644
--- a/libavcodec/dxva2_hevc.c
+++ b/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 {
diff --git a/libavcodec/dxva2_mpeg2.c b/libavcodec/dxva2_mpeg2.c
index 6e5dff308f..5cc8128100 100644
--- a/libavcodec/dxva2_mpeg2.c
+++ b/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 {
diff --git a/libavcodec/dxva2_vc1.c b/libavcodec/dxva2_vc1.c
index 247ea47825..fc09f88f05 100644
--- a/libavcodec/dxva2_vc1.c
+++ b/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;
diff --git a/libavutil/hwcontext_d3d11va.c b/libavutil/hwcontext_d3d11va.c
index 0a8cc5bc21..6488fc2203 100644
--- a/libavutil/hwcontext_d3d11va.c
+++ b/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);
 
diff --git a/libavutil/hwcontext_dxva2.c b/libavutil/hwcontext_dxva2.c
index d1b19ab237..bf9a3a9c11 100644
--- a/libavutil/hwcontext_dxva2.c
+++ b/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