Tizen 6.5: when playing HLS, video stuck while switch between stereo and surround audio

[Itsysho]

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

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

Not related, the video doesn't protection.

What version of Shaka Player are you using?

4.11.4

Can you reproduce the issue with our latest release version?
I'm not in the lab with Tizen 6.5 TV, will try it when I can.

Can you reproduce the issue with the latest code from main?
Same as above.

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

If custom app, can you reproduce the issue using our demo app?
Also reproduced in my custom app, I tried to fix by

player.selectAudioLanguage(
      activeTrack.language,
      undefined,
      activeTrack.channelsCount,
    )

or

player.selectVariantsByLabel(activeTrack.label)

It could be fix with workaround

player.selectAudioLanguage(activeTrack.language)
player.configure("preferredAudioChannelCount", targetLanguage.channelsCount)
player.reload()

What browser and OS are you using?
Tizen 8.0 / Chromium 108
It also happen Tizen 6.5 / Chromium 85 and Tizen 7.0 / Chromium.

userAgent: Mozilla/5.0 (SMART-TV; Linux; Tizen 8.0) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/7.0 Chrome/108.0.5359.1 TV Safari/537.36

For embedded devices (smart TVs, etc.), what model and firmware version are you using?

What are the manifest and license server URIs?

#EXT-X-MEDIA:TYPE=AUDIO,URI="",GROUP-ID="audio-AACL-127",LANGUAGE="ja",NAME="Japanese",DEFAULT=YES,AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="",GROUP-ID="audio-AC-3-384",LANGUAGE="und",NAME="Undetermined",DEFAULT=YES,AUTOSELECT=YES,CHANNELS="6"

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

{
  "manifest": {
    "retryParameters": {
      "maxAttempts": 6
    },
    "dash": {
      "ignoreSuggestedPresentationDelay": true
    }
  },
  "streaming": {
    "safeSeekOffset": 0,
    "autoLowLatencyMode": true,
    "preferNativeHls": true
  }
}

What did you do?
On a device that supports surround sound:

• Load a stream that contains both stereo and surround audio renditions.
• Switch between stereo and surround audio.
• Player stuck.

What did you expect to happen?

• Play normally.

What actually happened?

• Player stuck.

Are you planning send a PR to fix it?
Yes, let's find the cause.

[avelad]

What value of mediaSource.codecSwitchingStrategy are you using? Maybe RELOAD?

[tykus160]

@avelad on Tizen 6 shaka uses reload by default.
This is probably caused by #7555

[avelad]

Duplicated of #7555

[Itsysho]

We could reproduce the issue in shaka 4.11.14 which is #7555 check in version and shaka 4.12.2 demo page.

[avelad]

@tykus160 can you review it? Thanks!

[tykus160]

@Itsysho could share a manifest URL?

[tykus160]

@Itsysho I can confirm I'm able to reproduce the issue. It seems fix prepared in #7630 even worsens the codec switch journey on Tizen. I'm working on reverting the fix and preparing better solution.

[Iragne]

Hello can it be link to PS5 issue to ?

[tykus160]

@Iragne it's very likable. There's a draft PR of mine, I'm testing it mainly on Tizen & Chromecast now, but if you have a capability to make a draft run with this on PS5, that would be great!

[Iragne]

I will share to the team yes we will do

[Iragne]

FYI we are testing it this week and next week with long playback our testing will be on ps5 and we will force a lot of quality change and seek back and forward out of the buffer.
the current testing phase with this + this #7723 is really promising

[Iragne]

@avelad and @tykus160 this fix is making a huge improvement on cc devices. We will run it in production shortly.

Thanks so much