6 ms·

YouTube Format IDs

134 points by ksec 1mo ago

RankingMember 1mo ago
I feel like I'm missing some context. Cool that there's someone cataloging this though.
- floam 1mo ago
  Same id numbers you use when downloading them. While you might know what a particular URL is available in, I’m not sure I’ve seen an encyclopedic enumeration of the possibilities
throw0101d 1mo ago
"4320p"? Huh: * https://en.wikipedia.org/wiki/8K_resolution https://en.wikipedia.org/wiki/8K_resolution
- dylan604 1mo ago
  Just think of multiples of 1080p. 4K => 2160p and is 4x larger than HD. 8K => 4230p and is 16x larger than HD. 1080p of course is the height at the proper 16:9 aspect ratio of 1920 wide image. It just moves up from there keeping the same aspect.
  - account42 1mo ago
    Yes and also "4K" and "8K" can mean different resolutions depending on who you are talking to, e.g. 3840 pixels wide or actually 4000 pixels wide.
    - dylan604 1mo ago
      3840 keeps the aspect ratio 16:9. 1920 is not 2k. 2048/2000 would be 2k, 4096/4000 would be 4k. That is why it is called UHD and not 4k when the resolution is 3840x2160. In the film world, it was often referred to as having 2k scans but being delivered HD instead since it was most often scanned to video tape. Not everyone was able to deliver digital files (DPX sequences) at true 2k, and less were able to accept them. So 2k just became interchangeable as HD deliverables in the film/video realm.
      - account42 1mo ago
        > That is why it is called UHD and not 4k when the resolution is 3840x2160. Display manufacturers, streaming companies and home video distributors all use 4K in their labeling for not truly 4 thousand pixel wide resolutions. As do most random people that talk about the resolution. Yes, the UHD label is often included in a cover-your-ass way but 4K is very much being what 3840x2160 is being called in a lot of places.
throw0101d 1mo ago
> HFR stands for "High Framerate", which means up to 60 FPS, whereas non-HFR is limited to 30 FPS Personally I find most ((almost?) all?) >30fps generally unnecessary and just chews through bandwidth, monthly (mobile) data caps, and processing/batteries. Are there specific cases where "HFR" videos are really improving the viewing experience of particular (types of) content? (Note: in the table it's about support for HFR content, and does not necessarily mean that content is HFR.)
- noir_lord 1mo ago
  Gaming footage/videos, some games are so fast they are noticeably better to play at (and watch at) 60fps over 30fps.
  - throw0101d 1mo ago
    I don't watch too many of those, and those few that I do are more 4X (Civ, Stellaris, etc), so that maybe that's why I don't notice it as an advantage for most of the content I see.
    - HPsquared 1mo ago
      If there isn't much movement, it's probably a modest increase in bitrate anyway as the codec will see that most frames aren't changing.
      - ErroneousBosh 1mo ago
        At that, captured video of these things can be a total pain in the hoop to edit because OBS, Gamebar et al will write them as variable framerate files, only writing a frame with a suitably distant presentation timestamp when something changes. And this will make most NLE software shit its legs off.
        deepsun 1mo ago
        Improve software? It's job is to serve video editors, not the other way around. And it's a fun task, I bet there might be a dev or two who's working on that right now. And if someone is ready to pay for them, even better.
deleted 1mo ago
[deleted]
bithammerthunde 1mo ago
Is this in anyway related to the 403 issue with yt-dlp that's been happening for at least a week?
- Dylan16807 1mo ago
  Are you asking if youtube having different formats is making yt-dlp break? If that's your question, the answer is no. If you're asking something else, please explain the question better.
  - kotaKat 1mo ago
    no, I assume they're asking if this is tangically a related post towards the recent effort of yt-dlp 403s; the 403s are happening on specific format IDs because youtube is now starting to block and control access to different format IDs based on cookies, clients, and a few other things to try to limit how you can download videos and audio streams.
- dave7 1mo ago
  I updated to yt-dlp nightly and that fixed it for me, was a few days back now so idk if there's been further disruption: yt-dlp --update-to nightly

YouTube Format IDs

134 points by ksec 1mo ago

RankingMember 1mo ago

I feel like I'm missing some context. Cool that there's someone cataloging this though.

floam 1mo ago
Same id numbers you use when downloading them. While you might know what a particular URL is available in, I’m not sure I’ve seen an encyclopedic enumeration of the possibilities

throw0101d 1mo ago

"4320p"? Huh: * https://en.wikipedia.org/wiki/8K_resolution https://en.wikipedia.org/wiki/8K_resolution

dylan604 1mo ago
Just think of multiples of 1080p. 4K => 2160p and is 4x larger than HD. 8K => 4230p and is 16x larger than HD. 1080p of course is the height at the proper 16:9 aspect ratio of 1920 wide image. It just moves up from there keeping the same aspect.
- account42 1mo ago
  Yes and also "4K" and "8K" can mean different resolutions depending on who you are talking to, e.g. 3840 pixels wide or actually 4000 pixels wide.
  - dylan604 1mo ago
    3840 keeps the aspect ratio 16:9. 1920 is not 2k. 2048/2000 would be 2k, 4096/4000 would be 4k. That is why it is called UHD and not 4k when the resolution is 3840x2160. In the film world, it was often referred to as having 2k scans but being delivered HD instead since it was most often scanned to video tape. Not everyone was able to deliver digital files (DPX sequences) at true 2k, and less were able to accept them. So 2k just became interchangeable as HD deliverables in the film/video realm.
    - account42 1mo ago
      > That is why it is called UHD and not 4k when the resolution is 3840x2160. Display manufacturers, streaming companies and home video distributors all use 4K in their labeling for not truly 4 thousand pixel wide resolutions. As do most random people that talk about the resolution. Yes, the UHD label is often included in a cover-your-ass way but 4K is very much being what 3840x2160 is being called in a lot of places.

throw0101d 1mo ago

> HFR stands for "High Framerate", which means up to 60 FPS, whereas non-HFR is limited to 30 FPS Personally I find most ((almost?) all?) >30fps generally unnecessary and just chews through bandwidth, monthly (mobile) data caps, and processing/batteries. Are there specific cases where "HFR" videos are really improving the viewing experience of particular (types of) content? (Note: in the table it's about support for HFR content, and does not necessarily mean that content is HFR.)

noir_lord 1mo ago
Gaming footage/videos, some games are so fast they are noticeably better to play at (and watch at) 60fps over 30fps.
- throw0101d 1mo ago
  I don't watch too many of those, and those few that I do are more 4X (Civ, Stellaris, etc), so that maybe that's why I don't notice it as an advantage for most of the content I see.
  - HPsquared 1mo ago
    If there isn't much movement, it's probably a modest increase in bitrate anyway as the codec will see that most frames aren't changing.
    - ErroneousBosh 1mo ago
      At that, captured video of these things can be a total pain in the hoop to edit because OBS, Gamebar et al will write them as variable framerate files, only writing a frame with a suitably distant presentation timestamp when something changes. And this will make most NLE software shit its legs off.
      - deepsun 1mo ago
        Improve software? It's job is to serve video editors, not the other way around. And it's a fun task, I bet there might be a dev or two who's working on that right now. And if someone is ready to pay for them, even better.

deleted 1mo ago

[deleted]

bithammerthunde 1mo ago

Is this in anyway related to the 403 issue with yt-dlp that's been happening for at least a week?

Dylan16807 1mo ago
Are you asking if youtube having different formats is making yt-dlp break? If that's your question, the answer is no. If you're asking something else, please explain the question better.
- kotaKat 1mo ago
  no, I assume they're asking if this is tangically a related post towards the recent effort of yt-dlp 403s; the 403s are happening on specific format IDs because youtube is now starting to block and control access to different format IDs based on cookies, clients, and a few other things to try to limit how you can download videos and audio streams.
dave7 1mo ago
I updated to yt-dlp nightly and that fixed it for me, was a few days back now so idk if there's been further disruption: yt-dlp --update-to nightly