Can’t download a YouTube video because no matching formats were found

[riotfest628]

bug description

I've been trying to download two different videos with cobalt, but every time I try to download them, it tells me to try downloading them without HLS enabled, along with a “couldn't find any matching HLS streams for this video. try downloading it without HLS!” error message.

So, I turn off HLS, try again, but then I get a “youtube didn't return a valid video + audio format combo, either video or audio is missing. formats for this video may be re-encoding on youtube's side or something went wrong when parsing them. try enabling the hls option in video settings!” error message.

No matter what I try, it doesn't make any difference. I tried changing the video and audio quality, downloading it as a video, downloading as an audio, but they all keep giving me these two different error messages, depending on if I have HLS enabled or not.

reproduction steps

1. Go to https://cobalt.tools/
2. Download https://www.youtube.com/watch?v=rA4LomHCn00 (one of the videos I was trying to download)
3. Select “prefer hls for video & audio”, 1080p video quality, h264 (mp4) codec, or mp3 audio format with 128kb/s
4. More than likely, this is where the HLS error pops up. If it does, disable “prefer hls for video & audio” and you'll get the second error

screenshots

links

platform information

Microsoft Edge Version 133.0.3065.92 on a Windows 10 desktop

additional context

No response

[wukko]

seems like this video is being re-processed on youtube’s side, so some formats that cobalt uses are missing. not sure if we can do anything from our side atm unfortunately

[wukko]

could maybe add more codec combos in the future though?

[fyscape]

Same one can tell me that how can I installing the software!
download one day,cant do anything!

[riotfest628]

could maybe add more codec combos in the future though?

That would be nice ^^

[thinkmorebetter]

Could be related to recent DRM changes from YouTube? Documented more here yt-dlp/yt-dlp#12563

[wukko]

Could be related to recent DRM changes from YouTube?

nope, it's caused by youtube not returning an acceptable format combo. in this video's case, only h264 video & opus audio are available. cobalt tries to pick either h264+aac, vp9+opus, or av1+opus, but can't find anything appropriate.