From 6dcc1b13a313f25c3e27bbe2bd949f938574e4d1 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Sun, 7 May 2023 04:10:18 +0300
Subject: [PATCH] engine: client: avi: add new macro XASH_AVI and corresponding
 backend select macros (AVI_NULL, AVI_WIN32 and AVI_FFMPEG)

---
 common/backends.h            |  5 +++++
 common/defaults.h            | 14 +++++++++++++-
 engine/client/avi/avi.h      |  2 +-
 engine/client/avi/avi_stub.c |  6 +++---
 engine/client/avi/avi_win.c  |  6 +++---
 5 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/common/backends.h b/common/backends.h
index 6fd51f19f..db8bd7a03 100644
--- a/common/backends.h
+++ b/common/backends.h
@@ -50,4 +50,9 @@ GNU General Public License for more details.
 #define LIB_WIN32 2
 #define LIB_STATIC 3
 
+// movies (XASH_AVI)
+#define AVI_NULL   0
+#define AVI_WIN32  1
+#define AVI_FFMPEG 2
+
 #endif /* BACKENDS_H */
diff --git a/common/defaults.h b/common/defaults.h
index a3e572957..46ae81ef9 100644
--- a/common/defaults.h
+++ b/common/defaults.h
@@ -78,7 +78,6 @@ SETUP BACKENDS DEFINITIONS
 		// usually only 10-20 fds availiable
 		#define XASH_REDUCE_FD
 	#endif
-
 #endif // XASH_DEDICATED
 
 //
@@ -105,6 +104,19 @@ SETUP BACKENDS DEFINITIONS
 	#endif // !XASH_WIN32
 #endif
 
+//
+// determine movie playback backend
+//
+#ifndef XASH_AVI
+	#if HAVE_FFMPEG
+		#define XASH_AVI AVI_FFMPEG
+	#elif XASH_WIN32
+		#define XASH_AVI AVI_WIN32
+	#else
+		#define XASH_AVI AVI_NULL
+	#endif
+#endif
+
 #ifdef XASH_STATIC_LIBS
 #define XASH_LIB LIB_STATIC
 #define XASH_INTERNAL_GAMELIBS
diff --git a/engine/client/avi/avi.h b/engine/client/avi/avi.h
index 20fb04507..6bc1c7ad0 100644
--- a/engine/client/avi/avi.h
+++ b/engine/client/avi/avi.h
@@ -18,7 +18,7 @@ GNU General Public License for more details.
 //
 // avikit.c
 //
-typedef struct movie_state_s  movie_state_t;
+typedef struct movie_state_s movie_state_t;
 int AVI_GetVideoFrameNumber( movie_state_t *Avi, float time );
 byte *AVI_GetVideoFrame( movie_state_t *Avi, int frame );
 qboolean AVI_GetVideoInfo( movie_state_t *Avi, int *xres, int *yres, float *duration );
diff --git a/engine/client/avi/avi_stub.c b/engine/client/avi/avi_stub.c
index 0c6504d2e..a4ff7fb03 100644
--- a/engine/client/avi/avi_stub.c
+++ b/engine/client/avi/avi_stub.c
@@ -13,8 +13,8 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */
 
-#include "build.h"
-#if !XASH_WIN32
+#include "defaults.h"
+#if XASH_AVI == AVI_NULL
 #include "common.h"
 
 int AVI_GetVideoFrameNumber( movie_state_t *Avi, float time )
@@ -87,4 +87,4 @@ void AVI_Shutdown( void )
 	;
 }
 
-#endif // WIN32
+#endif // XASH_AVI == AVI_NULL
diff --git a/engine/client/avi/avi_win.c b/engine/client/avi/avi_win.c
index 128fe62ff..853707125 100644
--- a/engine/client/avi/avi_win.c
+++ b/engine/client/avi/avi_win.c
@@ -14,8 +14,8 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */
 
-#include "build.h"
-#if XASH_WIN32
+#include "defaults.h"
+#if XASH_AVI == AVI_WIN32
 #include "common.h"
 #include "client.h"
 #include <vfw.h> // video for windows
@@ -732,4 +732,4 @@ void AVI_Shutdown( void )
 	Sys_FreeLibrary( &msacm_dll );
 	avi_initialized = false;
 }
-#endif // _WIN32
+#endif // XASH_AVI == AVI_WIN32