win32: Enable high-resolution timer for MinGW build

timeapi.h is missing in our MinGW toolchain. Include mmsystem.h
header instead, which defines struct and APIs in case of our MinGW
toolchain. Note that in case of native Windows10 SDK (MSVC build),
mmsystem.h will include timeapi.h

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2153>

subprojects/gst-plugins-bad/sys/d3d11/gstd3d11decoder.cpp

@@ -58,7 +58,7 @@
 #include <string>
 
 #ifdef HAVE_WINMM
-#include <timeapi.h>
+#include <mmsystem.h>
 #endif
 
 GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_decoder_debug);

subprojects/gst-plugins-bad/sys/d3d11/meson.build

@@ -66,7 +66,7 @@ if d3d11_winapi_desktop
                     'gstd3d11screencapturesrc.cpp']
 
   # multimedia clock is desktop only API
-  if winmm_lib.found() and cc.has_header('timeapi.h')
+  if winmm_lib.found() and cc.has_header('mmsystem.h')
     extra_args += ['-DHAVE_WINMM']
     extra_dep += [winmm_lib]
   endif

subprojects/gst-plugins-base/tools/gst-play.c

@@ -42,7 +42,7 @@
 #ifdef HAVE_WINMM
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
-#include <timeapi.h>
+#include <mmsystem.h>
 #endif
 
 #include "gst-play-kb.h"

subprojects/gst-plugins-base/tools/meson.build

@@ -18,7 +18,7 @@ if host_system == 'windows'
 
   if not building_for_uwp
     winmm_lib = cc.find_library('winmm', required: false)
-    if winmm_lib.found() and cc.has_header('timeapi.h')
+    if winmm_lib.found() and cc.has_header('mmsystem.h')
       extra_args += ['-DHAVE_WINMM']
       extra_deps += [winmm_lib]
     endif

subprojects/gstreamer/tools/gst-launch.c

@@ -47,7 +47,7 @@
 #include <locale.h>             /* for LC_ALL */
 #include "tools.h"
 #ifdef HAVE_WINMM
-#include <timeapi.h>
+#include <mmsystem.h>
 #endif
 
 extern volatile gboolean glib_on_error_halt;

subprojects/gstreamer/tools/meson.build

@@ -10,7 +10,7 @@ extra_launch_arg = []
 if gst_parse
   if host_system == 'windows' and not building_for_uwp
     winmm_lib = cc.find_library('winmm', required: false)
-    if winmm_lib.found() and cc.has_header('timeapi.h')
+    if winmm_lib.found() and cc.has_header('mmsystem.h')
       extra_launch_dep += [winmm_lib]
       extra_launch_arg += ['-DHAVE_WINMM']
     endif