Chnages

display_test_nexio.py

@@ -180,5 +180,53 @@ def play_kiosk():
     except KeyboardInterrupt:
         pipeline.set_state(Gst.State.NULL)
 
+def play_static_color(r: int, g: int, b: int):
+    """Display a solid colour using GStreamer videotestsrc (no video file required).
+
+    Uses videotestsrc pattern=solid-color so every DSI line carries the same
+    repeating RGB triplet — any deviation in the proto_decoder output is a DSI fault.
+    """
+    Gst.init(None)
+
+    argb = (0xFF << 24) | (r << 16) | (g << 8) | b
+
+    SINK_STR = ("videoconvert ! video/x-raw,format=BGRx ! "
+                "kmssink driver-name=mxsfb-drm connector-id=37 plane-id=31 can-scale=false")
+    pipeline_str = (
+        f"videotestsrc pattern=solid-color foreground-color={argb} ! "
+        f"video/x-raw,width=1280,height=800,framerate=60/1 ! "
+        f"{SINK_STR}"
+    )
+
+    pipeline = Gst.parse_launch(pipeline_str)
+    bus = pipeline.get_bus()
+    bus.add_signal_watch()
+
+    loop = GLib.MainLoop()
+
+    def on_message(bus, msg):
+        if msg.type == Gst.MessageType.ERROR:
+            err, debug = msg.parse_error()
+            print(f"GStreamer Error: {err}\nDebug: {debug}", flush=True)
+            loop.quit()
+        elif msg.type == Gst.MessageType.STATE_CHANGED:
+            if msg.src == pipeline:
+                old, new, _ = msg.parse_state_changed()
+                print(f"Pipeline: {old.value_nick} -> {new.value_nick}", flush=True)
+
+    bus.connect("message", on_message)
+    pipeline.set_state(Gst.State.PLAYING)
+    print(f"Static colour R:{r} G:{g} B:{b} (0x{argb:08X}) — running", flush=True)
+
+    try:
+        loop.run()
+    except KeyboardInterrupt:
+        pipeline.set_state(Gst.State.NULL)
+
+
 if __name__ == "__main__":
-    play_kiosk()
+    import sys
+    if "--static-pink" in sys.argv:
+        play_static_color(255, 51, 187)   # R:255 G:51 B:187
+    else:
+        play_kiosk()