Add MSVC compat file for gettimeofday

Borrowed from https://github.com/microsoft/vcpkg/blob/master/ports/gettimeofday/

Author: jlskuz

src/framework/mlt_consumer.c

@@ -31,7 +31,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+
+#ifdef _MSC_VER
+#include <gettimeofday.h>
+#else
 #include <sys/time.h>
+#endif
 
 /** Define this if you want an automatic deinterlace (if necessary) when the
  * consumer's producer is not running at normal speed.

src/framework/mlt_log.c

@@ -23,10 +23,15 @@
 #include "mlt_service.h"
 
 #include <string.h>
+
 #ifndef NDEBUG
+#ifdef _MSC_VER
+#include <gettimeofday.h>
+#else
 #include <sys/time.h>
 #include <time.h>
 #endif
+#endif
 
 static int log_level = MLT_LOG_WARNING;
 

src/modules/sdl2/CMakeLists.txt

@@ -15,7 +15,7 @@ target_compile_options(mltsdl2 PRIVATE ${MLT_COMPILE_OPTIONS})
 target_include_directories(mltsdl2 PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
 target_link_libraries(mltsdl2 PRIVATE mlt Threads::Threads SDL2::SDL2)
 if(MSVC)
-  target_link_libraries(mltsdl2 PRIVATE PThreads4W::PThreads4W)
+  target_link_libraries(mltsdl2 PRIVATE PThreads4W::PThreads4W msvccompat)
 else()
   target_link_libraries(mltsdl2 PRIVATE m)
 endif()

src/modules/sdl2/consumer_sdl2.c

@@ -31,7 +31,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+
+#ifdef _MSC_VER
+#include <gettimeofday.h>
+#else
 #include <sys/time.h>
+#endif
 
 #undef MLT_IMAGE_FORMAT // only yuv422 working currently
 

src/modules/sdl2/consumer_sdl2_audio.c

@@ -31,7 +31,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+
+#ifdef _MSC_VER
+#include <gettimeofday.h>
+#else
 #include <sys/time.h>
+#endif
 
 MLT_EXPORT extern pthread_mutex_t mlt_sdl_mutex;
 

src/msvc/CMakeLists.txt

@@ -1,4 +1,4 @@
-add_library(msvccompat STATIC libgen.c)
+add_library(msvccompat STATIC libgen.c gettimeofday.c)
 
 target_include_directories(msvccompat PUBLIC
     ${CMAKE_CURRENT_SOURCE_DIR}

src/msvc/gettimeofday.c

@@ -0,0 +1,70 @@
+/*
+ * Copied from vcpkg:
+ * https://github.com/microsoft/vcpkg/blob/master/ports/gettimeofday/gettimeofday.c
+ *
+ * Originally copied from PostgreSQL source:
+ * http://doxygen.postgresql.org/gettimeofday_8c_source.html
+ *
+ */
+
+/*
+ * gettimeofday.c
+ *	  Win32 gettimeofday() replacement
+ *
+ * src/port/gettimeofday.c
+ *
+ * Copyright (c) 2003 SRA, Inc.
+ * Copyright (c) 2003 SKC, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose, without fee, and without a
+ * written agreement is hereby granted, provided that the above
+ * copyright notice and this paragraph and the following two
+ * paragraphs appear in all copies.
+ *
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT,
+ * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
+ * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
+ * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS
+ * IS" BASIS, AND THE AUTHOR HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
+ * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifdef _MSC_VER
+
+#include <winsock2.h>
+
+
+/* FILETIME of Jan 1 1970 00:00:00. */
+static const unsigned __int64 epoch = 116444736000000000Ui64;
+
+/*
+ * timezone information is stored outside the kernel so tzp isn't used anymore.
+ *
+ * Note: this function is not for Win32 high precision timing purpose. See
+ * elapsed_time().
+ */
+int
+gettimeofday(struct timeval * tp, struct timezone * tzp)
+{
+    FILETIME	file_time;
+    SYSTEMTIME	system_time;
+    ULARGE_INTEGER ularge;
+
+    GetSystemTime(&system_time);
+    SystemTimeToFileTime(&system_time, &file_time);
+    ularge.LowPart = file_time.dwLowDateTime;
+    ularge.HighPart = file_time.dwHighDateTime;
+
+    tp->tv_sec = (long) ((ularge.QuadPart - epoch) / 10000000L);
+    tp->tv_usec = (long) (system_time.wMilliseconds * 1000);
+
+    return 0;
+}
+
+#endif /* _MSC_VER */

src/msvc/gettimeofday.h

@@ -0,0 +1,19 @@
+/*
+ * Copied from vcpkg:
+ * https://github.com/microsoft/vcpkg/blob/master/ports/gettimeofday/gettimeofday.h
+ *
+ */
+
+#ifndef _MY_GETTIMEOFDAY_H_
+#define _MY_GETTIMEOFDAY_H_
+
+#ifdef _MSC_VER
+
+#include <winsock2.h>
+#include <time.h>
+
+int gettimeofday(struct timeval * tp, struct timezone * tzp);
+
+#endif /* _MSC_VER */
+
+#endif /* _MY_GETTIMEOFDAY_H_ */