Windows support via Mingw64 PyGObject

.gitignore

@@ -104,6 +104,7 @@ ENV/
 .idea/
 
 # Exclude Visual Studio solution files
+.vs
 *.sdf
 *.VC.opendb
 *.VC.db

README.md

@@ -59,6 +59,30 @@ Run the tests from the commandline:
 $ python3 test_gnomecast.py
 ```
 
+Running on Windows
+------------------
+
+Follow the PyGObject installation guide for Windows from https://pygobject.readthedocs.io/en/latest/getting_started.html or below: 
+
+Covered in the guide above:
+
+1. Install Msys2 and run `mingw64.exe` from the installation folder to install Mingw64 Python and its dependencies. **Note**: The Mingw64 terminal will only be used for installing the prerequisites and not for actually running the program.
+1. Run the following commands: 
+   1. Run `pacman -Suy` once and it will prompt to exit and run it again. Close terminal, re-open and run `pacman -Suy` once more.
+   1. Execute `pacman -S mingw-w64-x86_64-gtk3 mingw-w64-x86_64-python3 mingw-w64-x86_64-python3-gobject`
+
+Not included in link but needed in order to be able to start Gnomecast: 
+
+1. Execute following: `pacman -S mingw-w64-x86_64-python3-pip mingw-w64-x86_64-python3-lxml` to get `pip` and `lxml` needed for one of the dependencies. 
+1. Install Python package dependencies: `pip install bottle pychromecast pycaption paste`
+
+After this, for running Gnomecast you will need to **start the Mingw64 Python installation from a regular Windows commandline**, not from the Mingw64 or MSYS terminal (*I believe it has to do with the way paths are handled between UNIX and Windows, but not sure*). 
+So just run the Mingw64 Python installation from Windows, for example, `D:\msys64\mingw64\bin\python.exe gnomecast.py` 
+Also, make sure you have ffmpeg available on your regular Windows environment!
+
+Make sure to properly set up the Mingw64 Python environment correctly in Visual Studio as well, if wishing to use it for debugging purposes.
+
+
 My File Won't Play!
 -------------------
 

gnomecast.py

@@ -1,5 +1,6 @@
-import contextlib, os, re, signal, socket, subprocess, sys, tempfile, threading, time, traceback, urllib
+import contextlib, os, re, signal, socket, subprocess, sys, tempfile, threading, time, traceback, urllib, platform
 
+onWindows = platform.system() == 'Windows'
 
 DEPS_MET = True
 try:
@@ -147,8 +148,8 @@ def __init__(self, fn, callback=None, _ffmpeg_output=None):
     self.ready = False
     def parse():
       self.thumbnail_fn = None
-      thumbnail_fn = tempfile.mkstemp(suffix='.jpg', prefix='gnomecast_pid%i_thumbnail_' % os.getpid())[1]
-      os.remove(thumbnail_fn)
+      with tempfile.NamedTemporaryFile(suffix='.jpg', prefix='gnomecast_pid%i_thumbnail_' % os.getpid()) as f:
+        thumbnail_fn = f.name
       self._ffmpeg_output = _ffmpeg_output if _ffmpeg_output else subprocess.check_output(
         ['ffmpeg', '-i', fn, '-f', 'ffmetadata', '-', '-f', 'mjpeg', '-vframes', '1', '-ss', '27', '-vf', 'scale=600:-1', thumbnail_fn],
         stderr=subprocess.STDOUT
@@ -220,9 +221,9 @@ def load_subtitles(self):
     cmd = ['ffmpeg', '-y', '-i', self.fn, '-vn', '-an',]
     files = []
     for stream in self.subtitles:
-      srt_fn = tempfile.mkstemp(suffix='.srt', prefix='gnomecast_pid%i_subtitles_' % os.getpid())[1]
-      files.append(srt_fn)
-      cmd += ['-map', stream.index, '-codec', 'srt', srt_fn]
+      with tempfile.NamedTemporaryFile(suffix='.srt', prefix='gnomecast_pid%i_subtitles_' % os.getpid()) as subf:
+        files.append(subf.name)
+        cmd += ['-map', stream.index, '-codec', 'srt', subf.name]
 
     print(cmd)
     try:
@@ -283,8 +284,8 @@ def __init__(self, cast, fmd, video_stream, audio_stream, done_callback, error_c
     if self.transcode:
       self.done = False
       dir = '/var/tmp' if os.path.isdir('/var/tmp') else None
-      self.trans_fn = tempfile.mkstemp(suffix='.mp4', prefix='gnomecast_pid%i_transcode_' % os.getpid(), dir=dir)[1]
-      os.remove(self.trans_fn)
+      with tempfile.NamedTemporaryFile(suffix='.mp4', prefix='gnomecast_pid%i_transcode_' % os.getpid(), dir=dir) as f:
+        self.trans_fn = f.name
 
       device_info = HARDWARE.get((self.cast.device.manufacturer, self.cast.device.model_name))
       ac3 = device_info.ac3 if device_info else None
@@ -439,7 +440,10 @@ def check_ffmpeg(self):
     ffmpeg_available = True
     print('check_ffmpeg')
     try:
-      print(subprocess.check_output(['which', 'ffmpeg']))
+      if onWindows:
+        print(subprocess.check_output(['where', 'ffmpeg']))
+      else:
+        print(subprocess.check_output(['which', 'ffmpeg']))
     except Exception as e:
       print(e, e.output)
       ffmpeg_available = False
@@ -473,7 +477,8 @@ def video(id, ext):
       print('ranges', ranges)
       offset, end = ranges[0]
       self.transcoder.wait_for_byte(offset)
-      response = bottle.static_file(self.transcoder.fn, root='/')
+      folderpath, filename = os.path.split(self.transcoder.fn)
+      response = bottle.static_file(filename, root=folderpath)
       if 'Last-Modified' in response.headers:
         del response.headers['Last-Modified']
       response.headers['Access-Control-Allow-Origin'] = '*'
@@ -757,8 +762,10 @@ def f(scale, s):
     self.update_button_visible()
 
     win.resize(1,1)
-
-    GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, self.quit)
+
+    # Not working on Windows
+    if not onWindows:
+        GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, self.quit)
 
 
   def add_extra_subtitle_options(self):
@@ -970,11 +977,12 @@ def on_file_clicked(self, widget):
       if os.path.isdir(downloads_dir):
         dialog.set_current_folder(downloads_dir)
 
-      filter_py = Gtk.FileFilter()
-      filter_py.set_name("Videos")
-      filter_py.add_mime_type("video/*")
-      filter_py.add_mime_type("audio/*")
-      dialog.add_filter(filter_py)
+      if not onWindows:  
+         filter_py = Gtk.FileFilter()
+         filter_py.set_name("Videos")
+         filter_py.add_mime_type("video/*")
+         filter_py.add_mime_type("audio/*")
+         dialog.add_filter(filter_py)
 
       response = dialog.run()
       if response == Gtk.ResponseType.OK:
@@ -1566,7 +1574,9 @@ def delete_old_transcodes():
 
 
 def main():
-  delete_old_transcodes()
+  # Might not be needed on Windows since using NamedTemporaryFile?
+  if not onWindows:
+    delete_old_transcodes()
   caster = Gnomecast()
   arg_parse(sys.argv[1:], {'s':'subtitles', 'd':'device'}, caster.run, USAGE)
 

gnomecast.pyproj

@@ -11,14 +11,14 @@
     <OutputPath>.</OutputPath>
     <ProjectTypeGuids>{888888a0-9f3d-457c-b088-3a5042f75d52}</ProjectTypeGuids>
     <LaunchProvider>Standard Python launcher</LaunchProvider>
-    <InterpreterId>{9a7a9026-48c1-4688-9d5d-e5699d47d074}</InterpreterId>
-    <InterpreterVersion>3.4</InterpreterVersion>
+    <InterpreterId>Global|VisualStudio|Mingw64 Python 3.8</InterpreterId>
+    <SuppressEnvironmentCreationPrompt>True</SuppressEnvironmentCreationPrompt>
+    <IsWindowsApplication>False</IsWindowsApplication>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)' == 'Debug'" />
   <PropertyGroup Condition="'$(Configuration)' == 'Release'" />
   <PropertyGroup>
     <VisualStudioVersion Condition=" '$(VisualStudioVersion)' == '' ">10.0</VisualStudioVersion>
-    <PtvsTargetsFile>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\Python Tools\Microsoft.PythonTools.targets</PtvsTargetsFile>
   </PropertyGroup>
   <ItemGroup>
     <Content Include="icons\gnomecast.svg" />
@@ -38,8 +38,7 @@
     <Folder Include="www" />
   </ItemGroup>
   <ItemGroup>
-    <InterpreterReference Include="{9a7a9026-48c1-4688-9d5d-e5699d47d074}\3.4" />
+    <InterpreterReference Include="Global|VisualStudio|Mingw64 Python 3.8" />
   </ItemGroup>
-  <Import Project="$(PtvsTargetsFile)" Condition="Exists($(PtvsTargetsFile))" />
-  <Import Project="$(MSBuildToolsPath)\Microsoft.Common.targets" Condition="!Exists($(PtvsTargetsFile))" />
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\Python Tools\Microsoft.PythonTools.targets" />
 </Project>