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DJI Drone Footage (HEVC 150 mbps) vs Prores Proxy (300mbps)

Forum|Forum|2 years ago
July 24, 2023
2 replies
1724 views

My drone footage is recorded at 4k 60fps HEVC at about 150mbps.

When exporting through Media Encoder, it will encode a 4k 60fps prores proxy file at about 300mbps

Given that, it sounds like an acceptable final output format for stock footage, right? I mean it would be better to have a prores proxy file at 300mbps then an MP4 at 45mbps, right?

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Correct answer Warren Heaton

So just for clarification. I tried to upload another Prores Proxy file again just to see what happens, and it accpeted the upload.

It automatically lables it at prores in the description.

Now I haven't published to this particular platform yet, but when submitting a clip, it gives an option to make "comments for the reviewer"

This gives the impression that it will be reviewed by a human and then perhaps they could reject it at that point?

The only way to find out is for me to submit the proxy file and see what they do.

But again, it raises concerns because it isn't immediately rejected like other unsupported formats like h.265.

I’d transcode to ProRes 422 LT, ProRes 422, or ProRes 422 HQ.

Warren Heaton

Community Expert

For stock footage, I would try to shoot ProRes to begin with.

Otherwise, I would sell the first generation, unedited HEVC camera original (marketed as such) and allow the purchaser to decide which mezannine CODEC they would like to transcode to.

R

rybcoAuthor

Participating Frequently

Otherwise, I would sell the first generation, unedited HEVC camera original (marketed as such) and allow the purchaser to decide which mezannine CODEC they would like to transcode to.

By @Warren Heaton10841144

That was my first thought, but most of these mainstream stock sites don't accept HEVC. They want either a Prores LT (or Better) or an MP4.

I actually uploaded a prores proxy file to one site and it actually accepted it, but it recognized the file as Prores LT and labeled/marketed it as such - so that's probably not a good idea anyway.

With youtube and social media, there's a big market for MP4s where there is minimal post processing and technical quality isn't necessarily a priorty. I was just thinking that perhaps a "high quality" prores proxy file at 300mbs would be a happy medium and better than any other highly compressed format, especially since it's at twice the bitrate of the original.

But I guess at the end of the day, those that want a prores file are going to want LT or higher. And those that don't care will likely prefer an MP4.

Warren Heaton

Community Expert

Which stock library is this?

It's worrisome that someone could be licensing ProRes 422 LT and really getting ProRes 422 Proxy. ProRes 422 Proxy has a lower peak signal noise ratio (PSNR) than LT and should not be used in post production as if it's anything other than ProRes 422 Proxy.

Have you had a chance to review the Apple White ProRes White Paper?

HEVC can be in a MP4 wrapper or a MOV wrapper. It sounds like you should be uploading it to the stock site as the camera original in a MP4 wrapper.

Yes, someone creating content may not understand the different between frame independent formats like ProRes originals, non-frame independent formats like HEVC, and what it means to convert non-frame independent to frame independent; however, that's all the more reason professionals shooting the footage and services providing it must be.

E

eckiAMETeam

Adobe Employee

Hard to tell without the footage. I would compare MP4 45mbps and ProRes Proxy 300mbps encoding results side-by side. I would guess that the ProRes Proxy is probably better.

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