This should work but it hasn't been tested. Waiting on https://github.com/aatikturk/obsws-python/pull/58

src/simple_recorder/cli.py

@@ -5,6 +5,7 @@ from typing_extensions import override
 
 from .errors import SimpleRecorderError
 from .gui import SimpleRecorderWindow
+from .split import Split
 from .start import Start
 from .stop import Stop
 
@@ -35,7 +36,7 @@ def theme_parser(value: str) -> str:
 
 
 class SimpleRecorder(Command):
-    subcommand: Start | Stop | None = None
+    subcommand: Start | Stop | Split | None = None
     host: str = arg(default="localhost", env="OBS_HOST", help="OBS WebSocket host")
     port: int = arg(default=4455, env="OBS_PORT", help="OBS WebSocket port")
     password: str | None = arg(

src/simple_recorder/gui.py

@@ -3,6 +3,7 @@ import logging
 import FreeSimpleGUI as fsg
 from clypi import ClypiException
 
+from .split import Split
 from .start import Start
 from .stop import Stop
 
@@ -20,13 +21,18 @@ class SimpleRecorderWindow(fsg.Window):
         layout = [
             [fsg.Text("Enter recording filename:")],
             [fsg.InputText("", key="-FILENAME-")],
-            [fsg.Button("Start Recording"), fsg.Button("Stop Recording")],
+            [
+                fsg.Button("Start Recording"),
+                fsg.Button("Stop Recording"),
+                fsg.Button("Split Recording"),
+            ],
             [fsg.Text("Status: Not started", key="-OUTPUT-")],
         ]
         super().__init__("Simple Recorder", layout, finalize=True)
         self["-FILENAME-"].bind("<Return>", " || RETURN")
         self["Start Recording"].bind("<Return>", " || RETURN")
         self["Stop Recording"].bind("<Return>", " || RETURN")
+        self["Split Recording"].bind("<Return>", " || RETURN")
 
     async def run(self):
         while True:
@@ -64,6 +70,19 @@ class SimpleRecorderWindow(fsg.Window):
                             f"Error: {e.raw_message}", text_color="red"
                         )
 
+                case ["Split Recording", "RETURN" | None]:
+                    try:
+                        await Split(
+                            host=self.host, port=self.port, password=self.password
+                        ).run()
+                        self["-OUTPUT-"].update(
+                            "Recording split successfully", text_color="green"
+                        )
+                    except ClypiException as e:
+                        self["-OUTPUT-"].update(
+                            f"Error: {e.raw_message}", text_color="red"
+                        )
+
                 case _:
                     self.logger.warning(f"Unhandled event: {event}")
 

src/simple_recorder/split.py

@@ -0,0 +1,27 @@
+import obsws_python as obsws
+from clypi import Command, arg
+
+from .errors import SimpleRecorderError
+
+
+class Split(Command):
+    """Split recording."""
+
+    host: str = arg(inherited=True)
+    port: int = arg(inherited=True)
+    password: str = arg(inherited=True)
+
+    async def run(self):
+        with obsws.ReqClient(
+            host=self.host, port=self.port, password=self.password
+        ) as client:
+            resp = client.get_record_status()
+            if not resp.output_active:
+                raise SimpleRecorderError("Recording is not active.")
+            if resp.output_paused:
+                raise SimpleRecorderError(
+                    "Recording is paused. Please resume before splitting."
+                )
+
+            client.split_record_file()
+            print("Recording split successfully.")