Request extra frames for HW decoder

settings.txt

@@ -98,6 +98,10 @@
 # This is happening or Raspberry Pi Zero 2W. Disable this to use SW decoding for that case.
 #hw-decode = true
 
+# Request extra frames onevery key press. Usefull if you do not see last updates after key press
+# Enable for RPI hardware decoding and other systems where hardware decoder tends to buffer frames
+#force-redraw = false
+
 # Corrects aspect of UI
 #aspect-correction = 1
 

src/helper/protocol_const.h

@@ -38,7 +38,7 @@
 
 #define BTN_SIRI 5
 #define BTN_MICROPHONE 7
-#define BTN_12 12
+#define BTN_SCREEN_REFRESH 12
 // Navigation buttons
 #define BTN_LEFT 100
 #define BTN_RIGHT 101

src/main.cpp

@@ -59,8 +59,8 @@ void processKey(Protocol &protocol, SDL_Keysym key, RunParams &params)
         return;
 
     case SDLK_r:
+        protocol.sendKey(BTN_SCREEN_REFRESH);
         params.dirty = true;
-        protocol.sendKey(BTN_12);
         return;
 
     case SDLK_h:

src/protocol.cpp

@@ -119,6 +119,12 @@ void Protocol::sendKey(int key)
     write_uint32_le(&buf[0], key);
 
     send(CMD_CONTROL, false, buf, 4);
+
+    if(Settings::forceRedraw)
+    {
+        write_uint32_le(&buf[0], BTN_SCREEN_REFRESH);
+        send(CMD_CONTROL, false, buf, 4);
+    }
 }
 
 void Protocol::sendFile(const char *filename, const char *value)

src/settings.h

@@ -35,6 +35,7 @@ public:
     static inline Setting<int> fontSize{"font-size", 30};
     static inline Setting<bool> vsync{"vsync", false};
     static inline Setting<bool> hwDecode{"hw-decode", true};
+    static inline Setting<bool> forceRedraw{"force-redraw", false};
     static inline Setting<float> aspectCorrection{"aspect-correction", 1};
     static inline Setting<bool> fastScale{"fast-render-scale", false};
     static inline Setting<int> videoQueue{"video-buffer-size", 32};