search

YouTubeHDR / hdr_metadata

159 stars 38 forks source link

P2: Increase maximum upload file size for DNxHR HQX #6

Closed zmarty closed 7 years ago

zmarty commented 7 years ago

The current upload file size limit is 120GB as per: https://support.google.com/youtube/answer/71673?hl=en

However, as you probably know, DNxHR HQX takes up way more space.

Right now I am looking at a 28 minute file and it's 361GB. Obviously much more than the YouTube upload limit. A 2 hour movie would be much bigger.

I have to somehow convert the video to 10-bit H.264, which is harder than it sounds, and then upload it. All this compression and decompression is not ideal.

So if you are seriously supporting DNxHR HQX you need to increase the upload limit.

YouTubeHDR commented 7 years ago

Could you try using apple prores codec? The encoding bitrate for DNxHR HQX is super high.

zmarty commented 7 years ago

Yes I will figure something out. It's only P2 for me. Prores is not supported in DaVinci Resolve on Windows, only on Mac.

zmarty commented 7 years ago

A bit more information.

As per the Prores whitepaper the output bitrate for 2160p at 60 fps is 383 Megabit/sec (see page 22 here http://images.apple.com/final-cut-pro/docs/Apple_ProRes_White_Paper.pdf)

So Prores can also surpass your limit for longer videos.

zmarty commented 7 years ago

And that's the smallest version of Prores used for scratch, The actual Prores 422 is 1178 Mbit/sec or 1768 Mbit/sec for the high quality version. DNxHR is very similar.