AMD Transcoding

[pyraxic 0]

I am running openmediavault with RX 570 4gb. I have enabled AMD AMF for transcoding but it doesn't seem like Emby is using it. `top` shows ffmpeg taking 100% cpu

 

Wanted to find out if I can use AMD transcoding?

[Luke 42077]

Hi there, can you please attach the emby server and ffmpeg log? thanks.

[pyraxic 0]

https://pastebin.com/KGNN0B2e

https://pastebin.com/LZJ3Wx5T

Edited December 7, 2018 by pyraxic

[Luke 42077]

In this example the video is being stream copied, which means no video transcoding is occurring. So this example is actually inapplicable.

[pyraxic 0]

It would still use 100% cpu with ffmpeg process?

[Luke 42077]

ffmpeg will always try to go as fast as it can and use all resources available. that's just the way it works. we're introducing a throttle feature with the next release so stay tuned for that.

[pyraxic 0]

I tried running a UHD movie and it is extremely choppy and shoots my system load to 3. I am attaching the logs to see if I am doing something wrong. 

 

https://pastebin.com/n9i4gh4R

https://pastebin.com/PJh7sL60 

[Luke 42077]

Then I think you will enjoy the throttle feature with the upcoming 3.6 release of the server:

 

https://emby.media/community/index.php?/topic/62657-36040-transcode-throttle-is-back/

 

Thanks.

[pyraxic 0]

So this has nothing to do with transcoding even playing UHD?

[Luke 42077]

In this example, no transcoding is occurring we are still using ffmpeg to repackage the media info a different container. ffmpeg will always want to go as fast as it can by using all available resources, so this is where I think our throttle feature will help you quite a bit. When ffmpeg gets really far ahead of your current watching position, it will dynamically slow the process so that it uses less resources, and then go at a slower pace from there on out.