fdsfjlk

MPV/mpv_ipc.py

@@ -575,6 +575,46 @@ class MPV:
         debug("Starting MPV")
         subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, **kwargs)
 
+        # Start the persistent pipeline helper eagerly so MPV Lua can issue
+        # non-blocking requests (e.g., format list prefetch) without needing
+        # to spawn the helper on-demand from inside mpv.
+        try:
+            helper_path = (repo_root / "MPV" / "pipeline_helper.py").resolve()
+            if helper_path.exists():
+                py = sys.executable or "python"
+                helper_cmd = [
+                    py,
+                    str(helper_path),
+                    "--ipc",
+                    str(self.ipc_path),
+                    "--timeout",
+                    "30",
+                ]
+
+                helper_kwargs: Dict[str, Any] = {}
+                if platform.system() == "Windows":
+                    flags = 0
+                    try:
+                        flags |= int(getattr(subprocess, "DETACHED_PROCESS", 0x00000008))
+                    except Exception:
+                        flags |= 0x00000008
+                    try:
+                        flags |= int(getattr(subprocess, "CREATE_NO_WINDOW", 0x08000000))
+                    except Exception:
+                        flags |= 0x08000000
+                    helper_kwargs["creationflags"] = flags
+                    helper_kwargs.update({k: v for k, v in _windows_hidden_subprocess_kwargs().items() if k != "creationflags"})
+
+                subprocess.Popen(
+                    helper_cmd,
+                    stdin=subprocess.DEVNULL,
+                    stdout=subprocess.DEVNULL,
+                    stderr=subprocess.DEVNULL,
+                    **helper_kwargs,
+                )
+        except Exception:
+            pass
+
 
 def get_ipc_pipe_path() -> str:
     """Get the fixed IPC pipe/socket path for persistent MPV connection.