Newest yt-dlp doesn't select vp9 correctly.

[TheFrenchGhosty]

E-mail sent to me.

Hey TheFrenchGhosty,

Thank you for your download scripts that you provide on Github. Unfortunately, it seems like the latest version of yt-dlp does not use the format list in the same way, because it now downloads the wrong video formats. yt-dlp version 2023.03.04 downloads different video formats (vp9) compared to 2023.07.06 (avc1)

I wanted to ask if you have any plans to update your download scripts or if that project is done?

I can send you a modified download command that you can use to replicate this issue, if you want.

Thank you either way, I appreciate the work you put into this!

Kind regards, < redacted >

[TheFrenchGhosty]

My reply:

I didn't noticed the issue since I haven't downloaded videos with a script from this repo (except for the Watch on Mobile Devices script) in months.

I did some testing, the issue is that "vp9" got renamed to "vp09"

So:

yt-dlp --format bestvideo[vcodec^=vp9] <url>

Doesn't work, but:

yt-dlp --format bestvideo[vcodec^=vp09] <url>

does work.

[TheFrenchGhosty]

New discovery:

vp9.2 (so VP9 but HDR) is now vp09.02

Normal vp9 is now actually vp09.00

[jacroe]

Do you happen to know what ffprobe happens to report the AVC codec as? I assume it's h264, but is it something else?

[TheFrenchGhosty]

@jacroe I don't know about what ffprobe reports, but most tools report either avc or avc1.

[Sixfifty]

You might have to revert this, I've been downloading a channel using these and I discovered some videos were downloading as AVC instead of VP9.

Using yt-dlp 2023.09.24, AVC was listed as avc1.64002a and vp9 was simply listed as vp9.

That said, newer videos are listed as vp09.00.41.08 but vp9 seems to be working for them. None of the videos I'm testing are HDR so I do not know if vp9.2 is working.

I'm no expert on this, but I thought I should pass this on.

Here is a sample of what has been working for me: bestvideo[vcodec^=av01][height>=4320][fps>30]/bestvideo[vcodec^=v9.2][height>=4320][fps>30]/bestvideo[vcodec^=vp9][height>=4320][fps>30]/bestvideo[vcodec^=avc1][height>=4320][fps>30]/bestvideo[height>=4320][fps>30]

I might modify it to include both vp9 and vp09.00.

[TheFrenchGhosty]

@Sixfifty Oh fun... edge case...

I'll have to fix that.

[Sixfifty]

I've tried a few more experiments.

Adding vp9 as a fallback after vp09.00 seems to fix the issue.

Here is my modified selection:

(bestvideo[vcodec^=av01][height>=4320][fps>30]/bestvideo[vcodec^=vp09.02][height>=4320][fps>30]/bestvideo[vcodec^=vp09.00][height>=4320][fps>30]/bestvideo[vcodec^=vp9][height>=4320][fps>30]/bestvideo[vcodec^=avc1][height>=4320][fps>30]/bestvideo[height>=4320][fps>30]/bestvideo[vcodec^=av01][height>=4320]/bestvideo[vcodec^=vp09.02][height>=4320]/bestvideo[vcodec^=vp09.00][height>=4320]/bestvideo[vcodec^=vp9][height>=4320]/bestvideo[vcodec^=avc1][height>=4320]/bestvideo[height>=4320]/bestvideo[vcodec^=av01][height>=2880][fps>30]/bestvideo[vcodec^=vp09.02][height>=2880][fps>30]/bestvideo[vcodec^=vp09.00][height>=2880][fps>30]/bestvideo[vcodec^=vp9][height>=2880][fps>30]/bestvideo[vcodec^=avc1][height>=2880][fps>30]/bestvideo[height>=2880][fps>30]/bestvideo[vcodec^=av01][height>=2880]/bestvideo[vcodec^=vp09.02][height>=2880]/bestvideo[vcodec^=vp09.00][height>=2880]/bestvideo[vcodec^=vp9][height>=2880]/bestvideo[vcodec^=avc1][height>=2880]/bestvideo[height>=2880]/bestvideo[vcodec^=av01][height>=2160][fps>30]/bestvideo[vcodec^=vp09.02][height>=2160][fps>30]/bestvideo[vcodec^=vp09.00][height>=2160][fps>30]/bestvideo[vcodec^=vp9][height>=2160][fps>30]/bestvideo[vcodec^=avc1][height>=2160][fps>30]/bestvideo[height>=2160][fps>30]/bestvideo[vcodec^=av01][height>=2160]/bestvideo[vcodec^=vp09.02][height>=2160]/bestvideo[vcodec^=vp09.00][height>=2160]/bestvideo[vcodec^=vp9][height>=2160]/bestvideo[vcodec^=avc1][height>=2160]/bestvideo[height>=2160]/bestvideo[vcodec^=av01][height>=1440][fps>30]/bestvideo[vcodec^=vp09.02][height>=1440][fps>30]/bestvideo[vcodec^=vp09.00][height>=1440][fps>30]/bestvideo[vcodec^=vp9][height>=1440][fps>30]/bestvideo[vcodec^=avc1][height>=1440][fps>30]/bestvideo[height>=1440][fps>30]/bestvideo[vcodec^=av01][height>=1440]/bestvideo[vcodec^=vp09.02][height>=1440]/bestvideo[vcodec^=vp09.00][height>=1440]/bestvideo[vcodec^=vp9][height>=1440]/bestvideo[vcodec^=avc1][height>=1440]/bestvideo[height>=1440]/bestvideo[vcodec^=av01][height>=1080][fps>30]/bestvideo[vcodec^=vp09.02][height>=1080][fps>30]/bestvideo[vcodec^=vp09.00][height>=1080][fps>30]/bestvideo[vcodec^=vp9][height>=1080][fps>30]/bestvideo[vcodec^=avc1][height>=1080][fps>30]/bestvideo[height>=1080][fps>30]/bestvideo[vcodec^=av01][height>=1080]/bestvideo[vcodec^=vp09.02][height>=1080]/bestvideo[vcodec^=vp09.00][height>=1080]/bestvideo[vcodec^=vp9][height>=1080]/bestvideo[vcodec^=avc1][height>=1080]/bestvideo[height>=1080]/bestvideo[vcodec^=av01][height>=720][fps>30]/bestvideo[vcodec^=vp09.02][height>=720][fps>30]/bestvideo[vcodec^=vp09.00][height>=720][fps>30]/bestvideo[vcodec^=vp9][height>=720][fps>30]/bestvideo[vcodec^=avc1][height>=720][fps>30]/bestvideo[height>=720][fps>30]/bestvideo[vcodec^=av01][height>=720]/bestvideo[vcodec^=vp09.02][height>=720]/bestvideo[vcodec^=vp09.00][height>=720]/bestvideo[vcodec^=vp9][height>=720]/bestvideo[vcodec^=avc1][height>=720]/bestvideo[height>=720]/bestvideo[vcodec^=av01][height>=480][fps>30]/bestvideo[vcodec^=vp09.02][height>=480][fps>30]/bestvideo[vcodec^=vp09.00][height>=480][fps>30]/bestvideo[vcodec^=vp9][height>=480][fps>30]/bestvideo[vcodec^=avc1][height>=480][fps>30]/bestvideo[height>=480][fps>30]/bestvideo[vcodec^=av01][height>=480]/bestvideo[vcodec^=vp09.02][height>=480]/bestvideo[vcodec^=vp09.00][height>=480]/bestvideo[vcodec^=vp9][height>=480]/bestvideo[vcodec^=avc1][height>=480]/bestvideo[height>=480]/bestvideo[vcodec^=av01][height>=360][fps>30]/bestvideo[vcodec^=vp09.02][height>=360][fps>30]/bestvideo[vcodec^=vp09.00][height>=360][fps>30]/bestvideo[vcodec^=vp9][height>=360][fps>30]/bestvideo[vcodec^=avc1][height>=360][fps>30]/bestvideo[height>=360][fps>30]/bestvideo[vcodec^=av01][height>=360]/bestvideo[vcodec^=vp09.02][height>=360]/bestvideo[vcodec^=vp09.00][height>=360]/bestvideo[vcodec^=vp9][height>=360]/bestvideo[vcodec^=avc1][height>=360]/bestvideo[height>=360]/bestvideo[vcodec^=avc1][height>=240][fps>30]/bestvideo[vcodec^=av01][height>=240][fps>30]/bestvideo[vcodec^=vp09.02][height>=240][fps>30]/bestvideo[vcodec^=vp09.00][height>=240][fps>30]/bestvideo[vcodec^=vp9][height>=240][fps>30]/bestvideo[height>=240][fps>30]/bestvideo[vcodec^=avc1][height>=240]/bestvideo[vcodec^=av01][height>=240]/bestvideo[vcodec^=vp09.02][height>=240]/bestvideo[vcodec^=vp09.00][height>=240]/bestvideo[vcodec^=vp9][height>=240]/bestvideo[height>=240]/bestvideo[vcodec^=avc1][height>=144][fps>30]/bestvideo[vcodec^=av01][height>=144][fps>30]/bestvideo[vcodec^=vp09.02][height>=144][fps>30]/bestvideo[vcodec^=vp09.00][height>=144][fps>30]/bestvideo[vcodec^=vp9][height>=144][fps>30]/bestvideo[height>=144][fps>30]/bestvideo[vcodec^=avc1][height>=144]/bestvideo[vcodec^=av01][height>=144]/bestvideo[vcodec^=vp09.02][height>=144]/bestvideo[vcodec^=vp09.00][height>=144]/bestvideo[vcodec^=vp9][height>=144]/bestvideo[height>=144]/bestvideo)+(bestaudio[acodec^=opus]/bestaudio)/best

[TheFrenchGhosty]

@Sixfifty This is what I was planning to do yes :)