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Suddenly hardware encoding no longer possible when exporting media

Explorer ,
Sep 16, 2023 Sep 16, 2023

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I have a MacBook Pro M2 Max, 12 CPU cores, 38 GPU cores, and 64GB RAM, running MacOS Ventura 13.5.2.

 

This summer I have edited a lot of videos taken with my Mavic 3, 5.1K, Apple ProRes, 422HQ, and exported to 5.1K format using hardware encoding. I have proof, I have the files that I exported.

 

Suddenly I can no longer HW encode video files to match the same settings as my Mavic 3 footage. 

 

Please do not ask me "if I have the latest... blah blah". Instead, if you are really interested, try to download an example I've uploaded to OneDrive (does not require login), and see if you can encode using HW encoding to match the same settings as the file.

 

The test file can be found here https://1drv.ms/f/s!ApwvJiPkGv7shPRryrFYuLoUpB-R9A?e=aayPXY (click on the file, and choose DOWNLOAD).

 

What has happened?

Thanks

 

Bug Unresolved
TOPICS
Export , Performance or Stability

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correct answers 1 Correct answer

LEGEND , Sep 17, 2023 Sep 17, 2023

I forgot one more detail:

 

Your export resolution is too high for hardware encoding in H.264. Maximum supported resolution for hardware H.264 encoding is only 4096x4096. The 5120 frame width forced software encoding. With a 5k frame width, you must use HEVC in order to hardware encode. You cannot hardware encode 5k video to H.264 no matter what equipment you have (at least with Premiere Pro). 8k H.264 hardware encoding is not currently supported in Premiere Pro.

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12 Comments
LEGEND ,
Sep 16, 2023 Sep 16, 2023

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What are your export settings, the format and all that?

 

If H.264/5, single or two pass encodes?

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Explorer ,
Sep 17, 2023 Sep 17, 2023

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Thanks for your reply Neil, though I'm sure the culprit is somwhere else totally - remember, this is something I suddenly can't do anymore - so what has changed?

As requested, I have attached my encoding settings.

1_output_format.png

 

2_encode_settings.png

 

3_encode_settings.png

 

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LEGEND ,
Sep 17, 2023 Sep 17, 2023

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Ok, that's a long-GOP H.264 encode.

 

In the Preferences, there are a couple options for doing H.264 encodes, what are those set to?

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Explorer ,
Sep 17, 2023 Sep 17, 2023

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Thanks again - did you mean these settings?

 

media_settings.png

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LEGEND ,
Sep 17, 2023 Sep 17, 2023

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Yep. That gives the data that your project and export are set correctly. At this point, getting someone like @RjL190365 involved would be useful. The resident expert for such things.

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Explorer ,
Sep 17, 2023 Sep 17, 2023

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Thanks again - I hope for the best. 

Have you tried your self to HW encode my sample, please?

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LEGEND ,
Sep 17, 2023 Sep 17, 2023

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I have just checked your project's export settings. It looks like your export nitrate is set way too high for either H.264 or HEVC. H.264 hardware encoding is currently limited to about 75 Mbps regardless of the hardware used. But your bitrate is set to well over 200 Mbps! No wonder why it defaulted to software encoding.

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Explorer ,
Sep 17, 2023 Sep 17, 2023

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I tested a very low bitrate - I can provide screen recording. At lower nitrate the error was the same.

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LEGEND ,
Sep 17, 2023 Sep 17, 2023

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I forgot one more detail:

 

Your export resolution is too high for hardware encoding in H.264. Maximum supported resolution for hardware H.264 encoding is only 4096x4096. The 5120 frame width forced software encoding. With a 5k frame width, you must use HEVC in order to hardware encode. You cannot hardware encode 5k video to H.264 no matter what equipment you have (at least with Premiere Pro). 8k H.264 hardware encoding is not currently supported in Premiere Pro.

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Community Expert ,
Sep 17, 2023 Sep 17, 2023

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Yes, I thought that was the case.

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Community Expert ,
Sep 17, 2023 Sep 17, 2023

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The picture below is with Match Source Selected, then I changed to Hardware Encodeing. As soon as I clicked 4K instead, it switched on it's own to  Hardware encoding.

MyerPj_0-1695010715756.png

 

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Explorer ,
Sep 18, 2023 Sep 18, 2023

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Thank you!! The part where you said that yu cannot HW encode 5.1K video with H264 did the trick! That part was actually the correct answer. Thank you!

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