Another garbled video

[macv 2]

Hi, attached a clip of the video and the media info.

 

Server: Win10 Emby 4.2.1.0

Player: Roku TV 2017

 

The file plays perfectly on Windows with VLC.

On Windows with the Emby browser, playback has jitters but is not garbled.

 

Is this a known issue?  Any workarounds?
TIA

IMG_0711.MOV

video-info.txt

Edited November 17, 2019 by macv

[Guest asrequested]

https://emby.media/community/index.php?/topic/78221-green-static-with-hdr/page-1

[Guest asrequested]

Any workarounds?

 

Choose the AC3 audio track

[macv 2]

Awesome, thanks!

 

Just curious, why does unsupported audio affect the video?

[Guest asrequested]

It doesn't, but sometimes when the audio is unsupported, the server will transcode the audio and remux the file. Then this happens

https://emby.media/community/index.php?/topic/75688-4k-hevc-files-freeze-after-a-few-seconds/page-2&do=findComment&comment=767887

[speechles 2055]

Commercial name                          : Dolby TrueHD with Dolby Atmos

 

This is with a RokuTV too. We may be able to offer an option for RokuTV users to pass-through TrueHD. Some (read as most) RokuTV will downmix the Dolby core from the TrueHD and direct play the audio. Granted it will become 5.1 instead of 7.1 but it will direct play. This is kind of a big thing because of the recent issues we are having with hevc/green/artifacts.

 

This support for TrueHD is not able to be detected. Roku does not give us audio capabilities for that codec. This means there is no ability for us to know can your specific model of RokuTV play TrueHD. We would need a setting you enable and check if it can.

 

I will get with the team and discuss how to get RokuTV users the ability to direct play that TrueHD via setting. Then you can turn this on and see if it works. Please stay tuned. I know RokuTV are special because they have HDMI-ARC output and full Dolby licenses.

 

I have 2x RokuTV model 7130.

Edited November 17, 2019 by speechles

[macv 2]

Awesome, no worries about 5.1 since my speakers are 2.0

 

Maybe it’d be feasible to define Roku device capabilities in a map somewhere (since there’s a limited number of models)? It’d have to be updated for new models but perhaps a default could work where it shoots for compatibility and a user can turn on 7.1 if applicable.

[speechles 2055]

Awesome, no worries about 5.1 since my speakers are 2.0

 

Maybe it’d be feasible to define Roku device capabilities in a map somewhere (since there’s a limited number of models)? It’d have to be updated for new models but perhaps a default could work where it shoots for compatibility and a user can turn on 7.1 if applicable.

 

We read all capabilities from the device. For the small weird issues we know about we can tailor this profile in app. For a few more we need users to diagnose with we offer settings. That is what this TrueHD passthrough for RokuTV would be. It would be to allow you to not have that green screen and direct play TrueHD.

 

It does not matter you have stereo. The RokuTV will pull the Dolby core in 2.0 from the TrueHD in that case. The RokuTV knows your HDMI audio setup. It will correct the TrueHD to whatever it needs to be. But we need to pass it through the Roku so the TV can do this. We need a setting to allow you to do this. The RokuTV are the only Roku devices that can presently do this.

 

Our Roku profile for capability detection is the best in the industry. We do not need a map. We read the device info directly from the device. This gives us an array of all its capabilities. For the others we run code that pass codecs through the various Roku functions to determine which it says it supports and which it does not. We are interrogate the Roku at app launch every time. We also interrogate the Roku every single time you play an item to determine nothing has changed.

 

This is why we rarely need to offer settings for users unless it is absolutely necessary. In this case it is necessary. Our detection cannot work because Roku does not supply a TrueHD capabilities value. We need to supply one via setting.

Edited November 17, 2019 by speechles

[macv 2]

Not sure if it makes a difference but I'm using S/PDIF for the speaker to RokuTV connection.

 

Random idea: perhaps an easy workaround is to try other available audio streams before transcoding?  In order to make it as seamless as possible for users.

Edited November 17, 2019 by macv

[ebr 16184]

Random idea: perhaps an easy workaround is to try other available audio streams before transcoding?  In order to make it as seamless as possible for users.

 

We have no idea what the content of the audio tracks are so doing the above could have it play director commentary. 

[Guest asrequested]

Not sure if it makes a difference but I'm using S/PDIF for the speaker to RokuTV connection.

 

 

The only issue you may have with that, is dts. If your speakers don't support dts and the app extracts the dts core audio, you won't have any sound. And because it's optical, there's no transmission of information as to their capabilities.