QNAP TS 873A - Hardware Transcoding - GTX1650

[Jumalolento 0]

• When I use hardware acceleration for transcoding, the movie starts directly, but stops after a few seconds. Software transcoding works, but it puts a huge load on the CPU. The behavior occurs in Edge as well as in the Chrome browser.

 

Here is a screenshot with working transcoding, when the movie freezes it is blank.

• I put the Emby app as well as the transcoding path on SSD storage to avoid bottlenecks there. But it did not bring any improvement.

I do not know what else I can do to get it running

ffmpeg-transcode-5430b675-3ea4-458b-b160-b8508be53dcc_1.txt embyserver.txt

[Happy2Play 9780]

First guess would be the bitrate conversion doubling from HEVC to h264.  Your is showing a conversion from 50Mbps to 87Mbps.

If you lower in the in-client playback setting, do you still have this issue?

[Jumalolento 0]

I left it on "Auto" but even when I go to a 50 mbps bitrate the problem occurs. I then set it to 20mbps out of freeze, so it seems to work. I would like to have the full quality though.
 

ffmpeg-transcode-4017a1cc-512e-4364-9f34-47cd7e70da5f_1.txt embyserver (1).txt

Edited November 29, 2022 by Jumalolento

[Happy2Play 9780]

But transcoding 4k will never be full quality as you lose HDR but assisted with Tone Mapping in the conversion.

What kind of network connection is the client on?

Browsers have limited support and will require transcoding in most cases. TranscodeReasons=VideoCodecNotSupported

If have Emby Premiere you may get better results from Emby Theater Desktop.

Emby Theater - Emby

Edited November 29, 2022 by Happy2Play

[Jumalolento 0]

Thanks for the advice, if I try to play the Movie with Emby Theater I get following C++ runtime errors

I already tried a reinstallation of the runtime and rebooted several times.

[Happy2Play 9780]

5 minutes ago, Jumalolento said:

Thanks for the advice, if I try to play the Movie with Emby Theater I get following C++ runtime errors

I already tried a reinstallation of the runtime and rebooted several times.

Yes there appears to be an issue in the installer and 3.0.17.

 

 

[Jumalolento 0]

Ok I installed the Version from the Windows Store.

It's still transcoding but working without changing the bitrate, that's working for me thank you for your help

[Happy2Play 9780]

Glad it works but note the Store version use a different player then the Desktop version so you could get different result as Desktop will support for formats natively.

[bigmk777 0]

I'm running into this issue as well - what I'm noticing is that when the client (chrome) is set to Auto, the HLS encode rate is way higher than the source. Playback will occasionally halt, or outright stop. However if I manually select a lower bitrate then everything plays normally.

Let me know if I'm misreading the HLS stream conversion rate below.

 

[bigmk777 0]

For comparison, I hopped over to my DS220+, and played back the same file (using the TS-873A as the source), on the same browser with the playback set to Auto. 220+ only has an intel celeron, and no room for a GTX card.

 

[Luke 42077]

On 12/12/2022 at 12:53 AM, bigmk777 said:

I'm running into this issue as well - what I'm noticing is that when the client (chrome) is set to Auto, the HLS encode rate is way higher than the source. Playback will occasionally halt, or outright stop. However if I manually select a lower bitrate then everything plays normally.

Let me know if I'm misreading the HLS stream conversion rate below.

 

@bigmk777 can you please attach an ffmpeg log example from this? Thanks !