Can't direct play 4k to Chromecast Ultra

[squelix 0]

Hi, I would like to direct play a movie to my Chromecast Ultra but i can't....

I can't understand why because here https://github.com/MediaBrowser/Wiki/wiki/Chromecast, it says that MKV is supported by Chromecast, but when I try to play it it says 

"The media is compatible with the device regarding resolution and media type (H.264, AC3, etc.), but is in an incompatible file container (.mkv, .avi, .wmv, etc.). The video will be re-packaged on the fly before streaming it to the device."...

 

Do you know why ?

log.txt

embyserver.txt

[Luke 40063]

Hi, this video has AAC 5.1. With AAC audio Chromecast only supports up to 2 channels. They dropped 5.1 support a couple years ago. Does this answer your question?

[squelix 0]

I didn't know because they say here https://developers.google.com/cast/docs/media that ac2 is supported...

But in this case why in Netflix Surround works and why demo movie from Dolby Atmos steram by Emby site works too ?

 

I should buy a Nvidia Shield i guess...

Edited January 10, 2020 by squelix

[Luke 40063]

As I mentioned aac is supported, but only 2 channels. Your audio track is 5.1 or 7.1.

[squelix 0]

Yes my audio track is 5.1 :/

And i want 5.1 or 7.1, i have a Dolby Atmos Sound Bar.

 

[Luke 40063]

That one should direct play if you select the first subtitle track

[squelix 0]

I think you mean "the first audi track", but i would like 5.1 :/

[Guest asrequested]

Shouldn't it support AC3 5.1? Oh, but maybe not 640Kb/s?

[squelix 0]

Shouldn't it support AC3 5.1? Oh, but maybe not 640Kb/s?

 

That's what I thought :/

[Guest asrequested]

Can you find a movie with an AC3 audio track that has a bitrate of 384Kb/s and try it?

[squelix 0]

Can you find a movie with an AC3 audio track that has a bitrate of 384Kb/s and try it?

 

I have AC3 audio track that has a bitrate of 448Kb/s, I can try

[Guest asrequested]

Try that. And how is your audio equipment set up?

[squelix 0]

Try that. And how is your audio equipment set up?

 

Still not working.

 

I have my Chromacast Ultra directly on my Sound Bar and it sends all (video and sound) to my TV.

 

Sound Bar: https://www.lg.com/fr/lg-soundbar/lg-SK10Y-barre-de-son

TV: https://www.acer.com/ac/en/GB/content/model/UM.SE0EE.001

[Guest asrequested]

What does actually work?

[Guest asrequested]

I'm wondering if your issue is the same as mine

 

https://emby.media/community/index.php?/topic/79683-casting-from-mobile-to-shield-doesnt-work-well/&do=findComment&comment=829782

[squelix 0]

What does actually work?

 

This one is Direct Playing, but none of files with AC3, whatever the bitrate, is Direct Playing, only Direct Streaming.

 

[squelix 0]

I'm wondering if your issue is the same as mine

 

https://emby.media/community/index.php?/topic/79683-casting-from-mobile-to-shield-doesnt-work-well/&do=findComment&comment=829782

 

It looks like very similar.

[Guest asrequested]

I need to investigate that a bit further.

[squelix 0]

I need to investigate that a bit further.

 

I can't figure out if the problem is from Emby or from the Chromecast.

[Guest asrequested]

I had the same question.

[squelix 0]

This one is Direct Playing but it's eac3.

 

[squelix 0]

I tried again others ac3 audio codec video and eac3, ac3 never works and eac3 always work.

i'm trying to think that the problem is from the Chromecast...

[Luke 40063]

No, it's only when it's aac more than 2 channels, or a secondary audio track (non-default).

[squelix 0]

No, it's only when it's aac more than 2 channels, or a secondary audio track (non-default).

 

So the problem is the Chromecast, if i buy an other Android Box, like Nvidia Shield, it should works ?

 

Nvidia Shield: https://www.nvidia.com/fr-fr/shield/

[Luke 40063]

Well I don't necessarily consider it a problem, that's just what it supports and doesn't support.

 

But yes the Shield can direct play more formats.