Hardware transcoding stopped working? CPU always at 99%

[e2zippo 24]

So maybe since a couple of weeks back, maybe more. I'm having some problems with transcoding 4k videos on my Synology 918+.

It used to work pretty good, with only the odd movie stuttering.

The one with the biggest problems is a Apple TV coming from Internet.

I'm pretty sure bandwidth is not the problem in this case, we have plenty.

I've attached some logs from three different media files.

It looks like it's using hardware sometimes, and sometimes not?

Thing is, it used to work pretty good, but now it doesn't work at all. Almost every movie that requires transcoding stutters like crazy.

I tried multiple things in the Apple TV client, different quality options, disabling subtitles, didn't seem to help.

 

TS Emby Transcode.zip

Edited January 27 by e2zippo

[Luke 39306]

Hi, is it only with certain videos?

[Happy2Play 9289]

Looks like all the other topics with OpenCL issues.

&TranscodeReasons=VideoResolutionNotSupported

22:02:11.331 Stream mapping:
22:02:11.331   Stream #0:0 (hevc) -> scale_vaapi:default
22:02:11.331   hwmap:default -> Stream #0:0 (h264_vaapi)
22:02:11.331   Stream #0:1 -> #0:1 (copy)
22:02:11.331 Press [q] to stop, [?] for help
22:02:11.423 [AVHWDeviceContext @ 0x2846200] Failed to get number of OpenCL platforms: -1001.
22:02:11.423 [hwmap@f2 @ 0x2839180] Failed to created derived device context: -19.
22:02:11.423 [hwmap@f2 @ 0x2839180] Failed to configure output pad on hwmap@f2
22:02:11.423 Error reinitializing filters!
22:02:11.423 Failed to inject frame into filter network: No such device
22:02:11.423 Error while processing the decoded data for stream #0:0
22:02:11.427 Conversion failed!
22:02:11.427 EXIT



Info    Previous transcoding attempt failed. Falling back to software transcoding.

Should be moved to testing area also as it is 4.90.0.37

 

There are several others but some have been fixed in other betas.

[e2zippo 24]

9 hours ago, Luke said:

Hi, is it only with certain videos?

Seems to be most videos.

[e2zippo 24]

8 hours ago, Happy2Play said:

Looks like all the other topics with OpenCL issues.

&TranscodeReasons=VideoResolutionNotSupported

22:02:11.331 Stream mapping:
22:02:11.331   Stream #0:0 (hevc) -> scale_vaapi:default
22:02:11.331   hwmap:default -> Stream #0:0 (h264_vaapi)
22:02:11.331   Stream #0:1 -> #0:1 (copy)
22:02:11.331 Press [q] to stop, [?] for help
22:02:11.423 [AVHWDeviceContext @ 0x2846200] Failed to get number of OpenCL platforms: -1001.
22:02:11.423 [hwmap@f2 @ 0x2839180] Failed to created derived device context: -19.
22:02:11.423 [hwmap@f2 @ 0x2839180] Failed to configure output pad on hwmap@f2
22:02:11.423 Error reinitializing filters!
22:02:11.423 Failed to inject frame into filter network: No such device
22:02:11.423 Error while processing the decoded data for stream #0:0
22:02:11.427 Conversion failed!
22:02:11.427 EXIT



Info    Previous transcoding attempt failed. Falling back to software transcoding.

Should be moved to testing area also as it is 4.90.0.37

 

There are several others but some have been fixed in other betas.

Interesting. So it's related to tone mapping?

[e2zippo 24]

Seems to be related to tone mapping, hardware transcoding with VAAPI kicks in when hardware accelerated tone mapping is disabled. 

 

So the question is. Any way to get it working again? I'm guessing this has something to do with a change in DSM 7.2.2?

Edited January 28 by e2zippo

[Carlo 4529]

It's an issue in the current beta which is being looked at.

[e2zippo 24]

2 minutes ago, Carlo said:

It's an issue in the current beta which is being looked at.

Good to know, thanks! 

[e2zippo 24]

Any news on this?

[Carlo 4529]

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