[youtube] Extracting URL: https://youtu.be/EgZ8FPSEK1g?is=uIkC8SQ3Rr23MQgI
[youtube] EgZ8FPSEK1g: Downloading webpage
[youtube] EgZ8FPSEK1g: Downloading android vr player API JSON
[info] EgZ8FPSEK1g: Downloading subtitles: en
[info] EgZ8FPSEK1g: Downloading 1 format(s): 399+251
[info] Writing video subtitles to: source.en.vtt
[download] Destination: source.en.vtt

[download]    1.00KiB at  Unknown B/s (00:00:00)
[download]    3.00KiB at  Unknown B/s (00:00:00)
[download]    7.00KiB at  Unknown B/s (00:00:00)
[download]   15.00KiB at    4.55MiB/s (00:00:00)
[download]   31.00KiB at    5.65MiB/s (00:00:00)
[download]   63.00KiB at    3.49MiB/s (00:00:00)
[download]  127.00KiB at    3.43MiB/s (00:00:00)
[download]  251.20KiB at    4.34MiB/s (00:00:00)
[download] 100% of  251.20KiB in 00:00:00 at 1.46MiB/s
[info] Downloading video thumbnail 41 ...
[info] Writing video thumbnail 41 to: source.webp
[info] Writing video metadata as JSON to: source.info.json
[SubtitlesConvertor] Converting subtitles
[SubtitlesConvertor] Subtitle file for vtt is already in the requested format