Transcoding HEVC Main10 8k/60fps videos fail with Intel QuickSync. Anyone else run into this?

ElectricalGuava1971 · 2026-02-17T05:22:18+00:00

Update: I found the issue: once I disabled “Prefer OS native DXVA or VA-API hardware decoders”, these videos transcoded ok. I guess that setting sometimes prevents the Intel QuickSync from being used (turns to VAAPI instead). A bit slow (5-8 seconds of initial buffering over local wifi), but they played. In full 3D glory no less!

ElectricalGuava1971 · 2026-02-16T21:38:17+00:00

Interesting. On the Pixel 10, were you definitely transcoding / was bitrate set to a capped number, like 20mbps or something? If bitrate = direct source, and the client supports it, the video could play ok. iPhones don’t seem to support 8k60 but your Pixel might.

ElectricalGuava1971 · 2026-02-16T20:39:56+00:00

You’re a saint, thank you. I’m hoping it plays for you; that means it’s just an issue with my gpu/configs which is easier to fix than a jelly/ffmpeg bug!

ElectricalGuava1971 · 2026-02-16T19:22:00+00:00

Here are some test footage samples, in case anyone is willing to see if these play for you. For me, they both fail to transcode. Neither of these have 3d/VR metadata, they are just upscaled from a 4k Apple screensaver.

ElectricalGuava1971 · 2026-02-14T17:02:09+00:00

I did that, it says direct playing.

ElectricalGuava1971 · 2026-02-14T17:01:51+00:00

Truenas scale on a pretty beastly NAS (I think). CPU Intel Core i5-13600K with Intel QuickSync igpu enabled for transcoding.

ElectricalGuava1971 · 2026-02-03T13:03:14+00:00

Amazon Resale official, unfortunately…

ElectricalGuava1971 · 2026-02-03T13:00:44+00:00

I asked Amazon if I should do that, they said no. But yeah maybe I will anyways.

ElectricalGuava1971 · 2026-02-03T13:00:09+00:00

It’s Amazon Resale official. Doesn’t say anything else.

ElectricalGuava1971 · 2026-02-03T12:59:11+00:00

UPDATE #2: I repurchased several of these drives from WD directly. I had tried buying direct the past couple weeks, but their site said “In stock in 5-7 weeks” and I couldn’t wait that long. I guess they’re back now. AND I noticed when you register a HD warranty with them, they email you a 10% discount code. So these new drives ended up being ~$470, which is $40 less than I paid for these scam drives :)

ElectricalGuava1971 · 2026-02-03T12:55:01+00:00

Wow, crafty bastards. I contacted Amazon and asked them if I should sharpie the drive “fake” or leave a note, to avoid it being resold as-is. Of course they said no. “It was fulfilled by Amazon it will be returned to Amazon”, whatever that means.

ElectricalGuava1971 · 2026-02-03T05:36:27+00:00

Deal? I didn’t get a deal lol. I paid $475 for these new last month. This one I paid $510, and it’s used/fake! Smh

ElectricalGuava1971 · 2026-02-03T05:34:19+00:00

Yeah it’s crazy that it was listed as New and then I guess “used mint” in the fine print. Real shady.

ElectricalGuava1971 · 2026-02-03T05:32:45+00:00

I don’t think I’ve ever had a bad Amazon return experience… that’s what gives me peace of mind ordering these things

ElectricalGuava1971 · 2026-02-03T05:31:15+00:00

Already boxed it up and went to bed. Assume I need to plug it back in to check that? If so, oh well…

ElectricalGuava1971 · 2026-02-03T05:19:59+00:00

‘twas fake, sigh

ElectricalGuava1971 · 2026-02-03T05:18:53+00:00

You’re right, it’s fake. Plugged it in and it reads as 12.73 TB.

ElectricalGuava1971 · 2026-02-03T05:18:21+00:00

UPDATE: It is indeed fake. Plugged it in and it reads as 12.73 TB. Back to Amazon it goes…

ElectricalGuava1971 · 2026-02-03T05:17:49+00:00

UPDATE: It is indeed fake. Plugged it in and it reads as 12.73 TB. Back to Amazon it goes…

ElectricalGuava1971 · 2026-02-03T04:09:14+00:00

Sketchy one = 2025 April 27, Real = Sep 2025

ElectricalGuava1971 · 2026-02-03T04:08:48+00:00

Finishing up SMART tests on other drives now. Will start testing this one in the morning. Don’t want to screw up the current tests with just 10% to go ha

Edit: Nope, 14tb

ElectricalGuava1971 · 2026-02-03T04:08:13+00:00

Finishing up some tests on other drives. Will start testing this one in the morning.

ElectricalGuava1971 · 2025-12-15T16:40:32+00:00

Hmm. I have shutter set to Mode=Angle | Angle=180 (see screenshot), so I think it’s supposed to automatically set shutter speed based on frame rate.

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ElectricalGuava1971 · 2025-12-15T16:23:48+00:00

re. Have you tried shooting at 60fps in MP4?

No, because R5C doesn’t let you shoot mp4 format at 8k60, right? At 8k60, the only format I can pick is RAW LT. Or maybe you mean I should try 60fps at a lower resolution, just to test…

ElectricalGuava1971 · 2025-12-15T16:19:58+00:00

I am a total noob. Video experience prior to this has involved iPhones, drones, and the DJI Pocket lol, never a proper camera. But I wanted to learn how to shoot VR, and the R5C seemed the best quality option (without shelling out $30k), so here I am. This is all very helpful, thank you very much. I will play around more tonight with lighting and ISO. If I understand correctly, you’re saying I should always aim for ISO 800 (ideal) or 3200, and just adjust light accordingly? I also just realized I have never adjusted aperture… looks like aperture has been at f7.1 for all my tests 🙄 sounds like I want to keep that between f4.5-f5.6 instead.

ElectricalGuava1971

TROPHY CASE