!!! This feature is not available for videos uploaded after June 2016 !!!
Copy and paste one of the following commands to the tags/keywords section of your already uploaded Youtube video.
Examples of formatting tags:
yt:quality=high
Defaults to a high quality stream (available based on the size of the viewer’s player and the size of the browser window)
yt:crop=16:9
Zooms in on the 16:9 area, removes windowboxing
yt:stretch=16:9
Fixes anamorphic content by scaling to 16:9
yt:stretch=4:3
Fixes 720x480 content that is the wrong aspect ratio by scaling to 4:3
yt:crop=off
Deactivates cropping effects on the video and re-establishes cropped areas
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Source:
[ Ссылка ]
![](https://s2.save4k.ru/pic/n0cwuNsb1vU/maxresdefault.jpg)