Update mpv json ipc vendor code

[daniel-123]

Update to version 1.1.13 to hopefully address #322 fully.

[FichteFoll]

~/code/syncplay Ξ python syncplayClient.py
Attribute Qt::AA_EnableHighDpiScaling must be set before QCoreApplication is created.
MPV failed with returncode 1.
MPV start failed.
Traceback (most recent call last):
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 418, in __init__
    self.mpv_process = MPVProcess(ipc_socket, mpv_location, **kwargs)
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 242, in __init__
    raise MPVError("MPV not started.")
syncplay.vendor.python_mpv_jsonipc.python_mpv_jsonipc.MPVError: MPV not started.
MPV failed with returncode 1.
MPV start failed.
Traceback (most recent call last):
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 418, in __init__
    self.mpv_process = MPVProcess(ipc_socket, mpv_location, **kwargs)
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 242, in __init__
    raise MPVError("MPV not started.")
syncplay.vendor.python_mpv_jsonipc.python_mpv_jsonipc.MPVError: MPV not started.
MPV failed with returncode 1.
MPV start failed.
Traceback (most recent call last):
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 418, in __init__
    self.mpv_process = MPVProcess(ipc_socket, mpv_location, **kwargs)
  File "/home/fichte/code/syncplay/syncplay/vendor/python_mpv_jsonipc/python_mpv_jsonipc.py", line 242, in __init__
    raise MPVError("MPV not started.")
syncplay.vendor.python_mpv_jsonipc.python_mpv_jsonipc.MPVError: MPV not started.

[Et0h]

I got the same error. It seems to work again if you bring back the env code by:

• replacing def __init__(self, ipc_socket, mpv_location=None, **kwargs): with def __init__(self, ipc_socket, mpv_location=None, env=None, **kwargs): and
• replacing self.process = subprocess.Popen(args) with self.process = subprocess.Popen(args, env=env)

Also, because ipc_iina.py relies on syncplay.vendor.python_mpv_jsonipc.python_mpv_jsonipc it is possible that @albertosottile would need to update class IINAProcess(MPVProcess): in line with any changes to the vendor code.

[albertosottile]

To keep our modifications intact, I followed an inverted approach. I went to a Syncplay commit (40fef45) in which the vendor dependency had not been modified yet and compared the module in our code with version 1.1.13. Then, I went back to master and applied the same changes to our customized copy of the dependency.

In the end, I compared the diffs between the two cases confirming that the vendor dependency was patched as desired. A quick verification can be done comparing the changes in this PR with the changes upstream from here iwalton3/python-mpv-jsonipc@v1.1.11...v1.1.13.

I can confirm that I can correctly run IINA with the code in this branch. I would ask you all to confirm that you can also run mpv on your platforms.

Side note: VSCode automatically stripped some whitespace, hence why the diff shows these extra changes.

[Et0h]

Tested and it works fine for me on Windows 10 with mpv and mpv.net.