it should have downloaded 4k variant, but it download the 1080p instead.
screenshots
No response
links
platform information
Windows 11 Firefox 136
additional context
No response
Originally created by @osscleaner on GitHub (Mar 17, 2025).
Original GitHub issue: https://github.com/imputnet/cobalt/issues/1166
### bug description
When choose to download in 8k or 4k format, the main instance download 1080p instead.
### reproduction steps
1. go to cobalt.tools. in firefox.
2. set the video format to 8k, av1
3. go to save, and then paste https://www.youtube.com/watch?v=BmUZ2wp1lM8
4. it should have downloaded 4k variant, but it download the 1080p instead.
### screenshots
_No response_
### links
```shell
```
### platform information
Windows 11 Firefox 136
### additional context
_No response_
cobalt falls back to h264 if av1 & vp9 aren't available:
enabling HLS & switching to VP9 might help, though we don't control what formats youtube returns.
this is caused by us having to switch to the iOS client due to android client being cut off by youtube. it usually doesn't have av1 adaptive formats at all, so cobalt always falls back. HLS playlists tend to have 4k vp9 though.
<!-- gh-comment-id:2728407404 -->
@wukko commented on GitHub (Mar 17, 2025):
cobalt falls back to h264 if av1 & vp9 aren't available:
<img width="605" alt="Image" src="https://github.com/user-attachments/assets/40a3863a-5f4e-41f5-a513-caa690f90ab0" />
enabling HLS & switching to VP9 might help, though we don't control what formats youtube returns.
this is caused by us having to switch to the iOS client due to android client being cut off by youtube. it usually doesn't have av1 adaptive formats at all, so cobalt always falls back. HLS playlists tend to have 4k vp9 though.
*btw, [i already answered this question before](https://github.com/imputnet/cobalt/issues/1163#issuecomment-2727528062)*
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Originally created by @osscleaner on GitHub (Mar 17, 2025).
Original GitHub issue: https://github.com/imputnet/cobalt/issues/1166
bug description
When choose to download in 8k or 4k format, the main instance download 1080p instead.
reproduction steps
screenshots
No response
links
platform information
Windows 11 Firefox 136
additional context
No response
@wukko commented on GitHub (Mar 17, 2025):
cobalt falls back to h264 if av1 & vp9 aren't available:
enabling HLS & switching to VP9 might help, though we don't control what formats youtube returns.
this is caused by us having to switch to the iOS client due to android client being cut off by youtube. it usually doesn't have av1 adaptive formats at all, so cobalt always falls back. HLS playlists tend to have 4k vp9 though.
btw, i already answered this question before