Optimize includes

Only include SDL_stdinc.h for SDL_bool, not the whole SDL.h.

app/src/command.h

@@ -2,7 +2,7 @@
 #define COMMAND_H
 
 #include <inttypes.h>
-#include <SDL2/SDL.h>
+#include <SDL2/SDL_stdinc.h>
 #include <SDL2/SDL_platform.h>
 
 // <https://stackoverflow.com/a/44383330/1987178>

app/src/decoder.h

@@ -1,7 +1,7 @@
 #ifndef DECODER_H
 #define DECODER_H
 
-#include <SDL2/SDL.h>
+#include <SDL2/SDL_stdinc.h>
 #include <SDL2/SDL_net.h>
 
 struct frames;

app/src/frames.h

@@ -1,7 +1,8 @@
 #ifndef FRAMES_H
 #define FRAMES_H
 
-#include <SDL2/SDL.h>
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_stdinc.h>
 
 // forward declarations
 typedef struct AVFrame AVFrame;

app/src/screen.c

@@ -5,6 +5,7 @@
 #include <unistd.h>
 #include <libavformat/avformat.h>
 #include <sys/time.h>
+#include <SDL2/SDL.h>
 #include <SDL2/SDL_net.h>
 
 #include "command.h"

app/src/screen.h

@@ -1,7 +1,7 @@
 #ifndef SCREEN_H
 #define SCREEN_H
 
-#include <SDL2/SDL.h>
+#include <SDL2/SDL_stdinc.h>
 
 SDL_bool show_screen(const char *serial, Uint16 local_port);