feat(*): Add Windows ffmpeg support

This is only for people wanting to run this as a console application on windows, it's completely unnecessary for running this in a docker container.

YouTubeChannelDownloader/DownloadFfmpeg.ps1

@@ -0,0 +1,27 @@
+$ffmpegFilePath = "$PSScriptRoot\ffmpeg.exe"
+
+# Check if already exists
+if (Test-Path $ffmpegFilePath) {
+    Write-Host "Skipped downloading ffmpeg, file already exists."
+    exit
+}
+
+Write-Host "Downloading ffmpeg..."
+
+# Download the zip archive
+$url = "https://github.com/vot/ffbinaries-prebuilt/releases/download/v4.1/ffmpeg-4.1-win-64.zip"
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$wc = New-Object System.Net.WebClient
+$wc.DownloadFile($url, "$ffmpegFilePath.zip")
+$wc.Dispose()
+
+# Extract ffmpeg.exe from the archive
+Add-Type -Assembly System.IO.Compression.FileSystem
+$zip = [IO.Compression.ZipFile]::OpenRead("$ffmpegFilePath.zip")
+[IO.Compression.ZipFileExtensions]::ExtractToFile($zip.GetEntry("ffmpeg.exe"), $ffmpegFilePath)
+$zip.Dispose()
+
+# Delete the archive
+Remove-Item "$ffmpegFilePath.zip" -Force
+
+Write-Host "Done downloading ffmpeg."

YouTubeChannelDownloader/YouTubeChannelDownloader.csproj

@@ -16,4 +16,16 @@
     <PackageReference Include="YoutubeExplode" Version="6.0.5" />
     <PackageReference Include="YoutubeExplode.Converter" Version="2.1.0" />
   </ItemGroup>
+
+  <!-- This downloads FFmpeg and copies it to output directory-->
+  <!-- <Target Name="Download FFmpeg before build" BeforeTargets="PreBuildEvent">
+    <Exec Command="powershell -ExecutionPolicy Bypass -File &quot;$(ProjectDir)/DownloadFfmpeg.ps1&quot;" />
+    <Copy SourceFiles="$(ProjectDir)/ffmpeg.exe" DestinationFiles="$(OutDir)/ffmpeg.exe" />
+  </Target>
+
+  <Target Name="Download FFmpeg before publish" BeforeTargets="PrepareForPublish">
+    <Exec Command="powershell -ExecutionPolicy Bypass -File &quot;$(ProjectDir)/DownloadFfmpeg.ps1&quot;" />
+    <Copy SourceFiles="$(ProjectDir)/ffmpeg.exe" DestinationFiles="$(PublishDir)/ffmpeg.exe" />
+  </Target> -->
+
 </Project>