Cannot cast Dolby Atmos content via Chromecast

[Tsuruoka-569]

Have you read the FAQ and checked for duplicate open issues?
Yes

If the problem is related to FairPlay, have you read the tutorial?

What version of Shaka Player are you using?

v4.12.5

Can you reproduce the issue with our latest release version?
Yes

Can you reproduce the issue with the latest code from main?
Yes

Are you using the demo app or your own custom app?
Both

If custom app, can you reproduce the issue using our demo app?
Yes

What browser and OS are you using?
Google Chrome version 131.0.6778.140
Windows 11

For embedded devices (smart TVs, etc.), what model and firmware version are you using?
Chromecast with Google TV (HD) / android os 12

What are the manifest and license server URIs?

https://d2pbyw961c6y8f.cloudfront.net/toshi/naturesfury_dash/manifest.mpd

What configuration are you using? What is the output of player.getNonDefaultConfiguration()?

What did you do?

Create a DASH stream of Dolby Atmos content with ffmpeg.
Load it on Shaka Player v4.12.5 on Chrome browser on Windows.

Here's the ffmpeg command I used:
ffmpeg -i input.mp4 -codec copy -f dash -seg_duration 10 -dash_segment_type mp4 -movflags faststart -strict -2 manifest.mpd

What did you expect to happen?
The content cannot be played on Shaka Player itself as expected (not supported), however, casting it to STB such as "Chromecast with Google TV (HD) " should work.

What actually happened?

The casting fails and the STB does not start to play the Dolby Atmos content.

Are you planning to send a PR to fix it?

[tykus160]

Hi @Tsuruoka-569 Please keep in mind Dolby Atmos on Chromecast is supported only via passthrough, so your TV Chromecast is connected to needs to be able to decode Atmos.
Do you have any logs from failure?

[Tsuruoka-569]

We are testing STBs connected to a Denon AV receiver that is compatible with Atmos decoding.
I tested further and found that the Atmos casting could succeed with some STB devices such as NVidia Shield Pro. But still fails on Chromecast with Google TV (HD).

From a shaka demo player page, the casting only succeeds when the "play" button (outside of the player window) is pressed after casting connection is established. It does not succeed by clicking the play button inside the player window.

When trying to cast to Chromecast with Google TV (HD), I see this error : shaka.util.Error {severity: 2, category: 4, code: 4032, data: Array(0), handled: false, …} .

I wonder if this is a STB-side implementation issue.

Thanks in advance,
TT

[avelad]

@joeyparrish can you review it? Thanks!