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4

MacBook M1 Max Exported H265 File (AME/PP) can not playback / seek

Participant ,
Apr 12, 2023 Apr 12, 2023

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I have been using the M1 Max + Premiere Pro for years at this point but with the recent release I got problems for about a month or two now which I never had before.

 

When I export a file with H.265 at 4k or 1080p, the file ends up not being playable in preview, QuickTime, VLC, or Premiere Pro for that matter (importing it again into a new sequence).

 

The exported file is NOT playable when exporting h.265 longer than 10 minutes with:

- Premiere Pro 2023.2

- Media Encoder 2023.2.1

- Premiere Pro 2023.2 on M1 with Intel Version (Rosetta)

- Premiere Pro Beta 2023.4

 

This problem is happening no matter if I export with Premiere Pro or with Media Encoder.

 

Export works normally when:

- exporting to h.264

- exporting with an Intel MacBook to h.265

- exporting to h.265 with DaVinci Resolve

 

I've not had this issue in December but it's been annoying recently that I can't use H.265 any more for the exports.

 

I hope this can be fixed / figured out soon.

 

Technical Details:

- MacBook Pro M1 Max

- Premiere Pro 23.2

Bug Unresolved
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21 Comments
Participant ,
Apr 12, 2023 Apr 12, 2023

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Added information: what happens is that I can open the file and it starts to play but as soon as I jump into the middle of the file it just gets stuck while seeking and takes forever to load.

 

When I open the file in Premire Pro and put it into a sequence and try to jump around with the playhead and play the video from various places, it's not working and Premiere Pro just hangs and does uses 100% of all my CPU and RAM over time.

 

Same when I try to transcode the "broken h.265" file with Media Encoder.

 

So reading the file seem pretty broken and it's only when I export the file with Premiere Pro or Media Encoder.

 

I really hope this can be figured out 👍.

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New Here ,
Apr 18, 2023 Apr 18, 2023

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Same problem with same specs!

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Participant ,
Apr 19, 2023 Apr 19, 2023

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We now also confirmed the same export issues on the M1 MacBook Air. H.265 exported files stutter when playing back.

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New Here ,
Apr 21, 2023 Apr 21, 2023

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Any Update?

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New Here ,
Apr 30, 2023 Apr 30, 2023

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Using an M1 Max mac book pro and the latest Media Encoder as well as the beta and I see the same behavior when exporting with h265. The resulting file I can start playback of the file in quicktime or vlc but seaking is indeed broken. 

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Participant ,
Apr 30, 2023 Apr 30, 2023

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@simplethoughtproductions @nyanthecreator Please upvote the issue. It seems we are in a minority but every upvote counts and is important to get for this to be fixed. I also would love for @adobe to respond on this matter! It's been weeks having this problem without a resolution.

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Participant ,
Apr 30, 2023 Apr 30, 2023

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@Kevin-Monahan or @Francis-Crossman Maybe one of you two can take a look at this H.265 export issue?

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Participant ,
Apr 30, 2023 Apr 30, 2023

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I tested an export with H.265 and Software Encoding and it does not show the same issue. Playback just works and seeking as well. So it's an issue with the H.265 Hardware Encoding on M1 Mac Machines.

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Adobe Employee ,
May 01, 2023 May 01, 2023

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Hey Chris,

Great to hear from you again, though I wish it were under different circumstances. Can you upload a sample file I can check out? Feel free to PM me the link.

 

Thanks,

Kevin

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New Here ,
May 01, 2023 May 01, 2023

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Here you go: https://www.simplethoughtproductions.com/data/adobe_test.mp4 I created this using the HEVC (H.265) Format using the 4kUHD Preset.

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Adobe Employee ,
May 02, 2023 May 02, 2023

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Hi Chris and others on the thread,

I showed this to the team this morning and they can see the issue thanks to the source file that simplethoughtproductions provided. Thanks to one and all for providing the details of the issue.

 

We found that while one can play back the file from the start, as soon as you try scrubbing or parking on a different frame to play from there, it takes an inordinate amount of time for the frames to start playing back again. Software Encoding is much better in that regard. 

 

With these observations and verification of the issue, your bug has been placed in the queue for a fix. I hope the dev team can get this working again ASAP. Look to upcoming versions in the Beta to see if the fix might come sooner there. I appreciate you reporting on this problem, I can see how frustrating that one might be. Take care.

 

Thanks,
Kevin

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New Here ,
May 02, 2023 May 02, 2023

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Glad to have helped. Looking forward to the patch!

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Adobe Employee ,
May 02, 2023 May 02, 2023

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Our engineers have found out why the files play back so poorly.  They have one single I-Frame at the very beginning of the file.  GOP structure codecs are supposed to have I-Frames periodically throughout the file - like every 15 frames, sometimes much further apart than that, but never just one for the whole file.  So the further you get away from the beginning of the file, the worse it gets in this case.  The next step is to find why they are being encoded this way and then fix it.  We believe this only affects HEVC on Apple M1.  We're on the case. In the meantime, can you use H264 for your workflow?  You can also use software encoding as @Kevin-Monahan suggests.  

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Participant ,
May 02, 2023 May 02, 2023

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Thank you @Kevin-Monahan and @Francis-Crossman for the updates on this issue and that it's now recognized and in progress. That's great news and I am looking forward to a fix - hoping the team can figure it out fast and deploy to the beta of PP and AME.

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Adobe Employee ,
May 03, 2023 May 03, 2023

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Chris,

Your fine reporting and the help of others helped a lot. Thanks for all the info.

 

Cheers,

Kevin

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New Here ,
May 06, 2023 May 06, 2023

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I can confirm the same is happening on M2 Pro (Macbook Pro - M2 Pro 12 core, 16GB ram).
I export mainly 40+ min videos for youtube and since this started I've been unable to scrub through exports in H.265.
VLC player can do it (very slowly) but I think it just brute forces it. 

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Explorer ,
May 06, 2023 May 06, 2023

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I have this issue too, m1 max 

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Participant ,
May 15, 2023 May 15, 2023

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Hello @Kevin-Monahan, is there any progress on this issue (maybe in the Beta branch)?

I have been using the Software Encoder but the extra time it takes in the export is crazy and a real inconvenience.

Thank you :cherry_blossom:

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Community Expert ,
May 15, 2023 May 15, 2023

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@Chris Spiegl 

 

While waiting for the H265 export on Apple Silicon bug fix, I've been exporting to ProRes 422 LT and then right-clicking in the Finder and choosing Encode Selected Video Files.  Then choosing H265 when the options appear.  Since macOS does not present a status bar, I use Shutter Encoder (donationware) to convert the ProRes 422 LT exports to H265 for longer videos and batches.

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Participant ,
May 15, 2023 May 15, 2023

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That's an interesting workaround. I'll look into it. Thank you.

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Adobe Employee ,
May 16, 2023 May 16, 2023

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LATEST

Hi Chris,

Sorry, the issue is pretty new so I don't think we're seeing it in Beta yet. I'll have to ask for your patience on this one. Sorry for the inconvenience.

 

Thanks,
Kevin

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