[FFmpeg-user] youtube formats not recognized by latest ffmpeg

[Moritz Barsnick]

On Sun, Nov 10, 2019 at 11:10:01 -0700, JD wrote:
> Dear all,
> there are new formats on youtube that latest firefox cannot play,
> neither can latest mplayer nor latest ffplay.
> Example of these formats, as seen when one invokes
> youtube-dl -F  <youtube-video-url> (such as
> https://www.youtube.com/watch?v=pD5oUCVFmv0):
>
> 225          mp4        1280x534   720p 4534k , avc1.4d401f, 24fps,
> video only, 1.90GiB
> 226          mp4        1920x800   1080p 4614k , avc1.640028, 24fps,
> video only, 2.32GiB
> 227          mp4        1920x800   1080p 6378k , avc1.640028, 24fps,
> video only, 3.45GiB (best)
>
> What player can play these formats?

You could show us what ffmpeg says when trying to merge the formats, as
indicated in this ticket:

https://github.com/ytdl-org/youtube-dl/issues/22700

But *don't* use "-loglevel "repeat+info" please, that might surpress
important info.

My suspicion: Those formats are DRM-protected. See this (old) ticket:
https://github.com/ytdl-org/youtube-dl/issues/9148

Cheers,
Moritz