Add the ability to explicitly specify which language subtitles you want to download

[Korb]

This applies to both automatic subtitles (created and automatically translated) and those created manually.

[database64128]

You can always uncheck "All languages" in the subtitles section and specify --sub-langs in custom arguments.

The defaults of youtube-dl-wpf try to preserve as much about the original source as possible. I'm not sure if --sub-langs really deserves an extra text field in the UI.

[thisisjin]

Another project seal in github. After setting the specific language subtitle parameters (such as Chinese: .zh-Hans), it can successfully download the automatically generated translated subtitles and integrate them into the video through ffmpeg. However, many times I added download subtitles through youtube-dl-wpf, downloaded automatically generated subtitles, and specified the language (.zh-Hans), but the following two situations still occurred: 1. Subtitles in the relevant language cannot be found; 2. The downloaded subtitles are still automatically generated in English.

[database64128]

With 466ce4e8c52ae3cd69d960bd3e8e97603f5de218, you can now pick subtitle languages in the GUI. Try it out by downloading the build artifacts from https://github.com/database64128/youtube-dl-wpf/actions/runs/18018772613.

[database64128]

v1.13.0 is out with the new feature.