Move version handling to a separate file

This will avoid to include all dependencies headers from main.c.

app/meson.build

@@ -26,6 +26,7 @@ src = [
     'src/scrcpy.c',
     'src/screen.c',
     'src/server.c',
+    'src/version.c',
     'src/video_buffer.c',
     'src/util/acksync.c',
     'src/util/file.c',

app/src/main.c

@@ -15,27 +15,7 @@
 #include "scrcpy.h"
 #include "usb/scrcpy_otg.h"
 #include "util/log.h"
-
-static void
-print_version(void) {
-    printf("\ndependencies:\n");
-    printf(" - SDL %d.%d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION,
-                                SDL_PATCHLEVEL);
-    printf(" - libavcodec %d.%d.%d\n", LIBAVCODEC_VERSION_MAJOR,
-                                       LIBAVCODEC_VERSION_MINOR,
-                                       LIBAVCODEC_VERSION_MICRO);
-    printf(" - libavformat %d.%d.%d\n", LIBAVFORMAT_VERSION_MAJOR,
-                                        LIBAVFORMAT_VERSION_MINOR,
-                                        LIBAVFORMAT_VERSION_MICRO);
-    printf(" - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR,
-                                      LIBAVUTIL_VERSION_MINOR,
-                                      LIBAVUTIL_VERSION_MICRO);
-#ifdef HAVE_V4L2
-    printf(" - libavdevice %d.%d.%d\n", LIBAVDEVICE_VERSION_MAJOR,
-                                        LIBAVDEVICE_VERSION_MINOR,
-                                        LIBAVDEVICE_VERSION_MICRO);
-#endif
-}
+#include "version.h"
 
 int
 main(int argc, char *argv[]) {
@@ -71,7 +51,7 @@ main(int argc, char *argv[]) {
     }
 
     if (args.version) {
-        print_version();
+        scrcpy_print_version();
         return 0;
     }
 

app/src/version.c

@@ -0,0 +1,29 @@
+#include "version.h"
+
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavutil/avutil.h>
+#ifdef HAVE_V4L2
+# include <libavdevice/avdevice.h>
+#endif
+
+void
+scrcpy_print_version(void) {
+    printf("\ndependencies:\n");
+    printf(" - SDL %d.%d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION,
+                                SDL_PATCHLEVEL);
+    printf(" - libavcodec %d.%d.%d\n", LIBAVCODEC_VERSION_MAJOR,
+                                       LIBAVCODEC_VERSION_MINOR,
+                                       LIBAVCODEC_VERSION_MICRO);
+    printf(" - libavformat %d.%d.%d\n", LIBAVFORMAT_VERSION_MAJOR,
+                                        LIBAVFORMAT_VERSION_MINOR,
+                                        LIBAVFORMAT_VERSION_MICRO);
+    printf(" - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR,
+                                      LIBAVUTIL_VERSION_MINOR,
+                                      LIBAVUTIL_VERSION_MICRO);
+#ifdef HAVE_V4L2
+    printf(" - libavdevice %d.%d.%d\n", LIBAVDEVICE_VERSION_MAJOR,
+                                        LIBAVDEVICE_VERSION_MINOR,
+                                        LIBAVDEVICE_VERSION_MICRO);
+#endif
+}

app/src/version.h

@@ -0,0 +1,9 @@
+#ifndef SC_VERSION_H
+#define SC_VERSION_H
+
+#include "common.h"
+
+void
+scrcpy_print_version(void);
+
+#endif