Emby Shield TV 4.7.11.0 does not use hardware acceleration for scaling

[alexpunga148 4]

According to logs, scaling can be accelated, but it does not. Is there any reason for that?

ffmpeg-transcode-6ac043b3-8f71-4993-af6a-eee8da6d5206_1.txt

[ebr 14925]

Hi.  Do you have Emby Premiere?  Hardware acceleration is a Premiere feature on most platforms.

https://support.emby.media/support/solutions/articles/44001173099-emby-premiere-feature-matrix

[alexpunga148 4]

7 minutes ago, ebr said:

Hi.  Do you have Emby Premiere?  Hardware acceleration is a Premiere feature on most platforms.

https://support.emby.media/support/solutions/articles/44001173099-emby-premiere-feature-matrix

Yes, I've got. As you can see, transcoding from h265 to h264 uses hardware acceleration, bu scaling doesn't. Logs say that hardware acceleration is supported

[ebr 14925]

Okay @softworkzmay be able to provide details.

[softworkz 3338]

The reason here is the required color conversion from yuv420p10 to yuv420p, which can't be done in hw.

[alexpunga148 4]

20 minutes ago, softworkz said:

The reason here is the required color conversion from yuv420p10 to yuv420p, which can't be done in hw.

Makes sense. Is that required by shield's hardware encoder? I noticed that transcoding on every device requires color conversion

[softworkz 3338]

There is a spec for H.264 with 10bit color, but that is rarely supported. No hardware encoder or decoder I know supports it.