[webOS] Implement DTS support

[sundermann]

Description

Implement DTS support for webOS.

The dts packet frame size was not available from AEStreamInfo so I renamed m_ac3FrameSize to m_frameSize and added the necessary changes to the AEStreamParser to expose that information. All the other sinks that use this field only use it in case of (e)AC3 audio so the change has no effect on them.

Motivation and context

How has this been tested?

webOS 8, tried several different DTS format files

What is the effect on users?

Screenshots (if appropriate):

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• Student submission (PR was done for educational purposes and will be treated as such)
• None of the above (please explain below)

Checklist:

• My code follows the Code Guidelines of this project
• My change requires a change to the documentation, either Doxygen or wiki
• I have updated the documentation accordingly
• I have read the Contributing document
• I have added tests to cover my change
• All new and existing tests passed

[fritsch]

Thanks - makes sense, especially as it's needed for a Sink.

[sundermann]

One thing to mention is that for DTS:X support we need to have this information available. This is available from ffmpeg 6.1 as a profile hint so I'll leave that for later. This also applies for the eAC3 JOC case.

[fritsch]

The Core changes are minimal. The changes to other components outside of WebOS are simply member variable name changes. All good.

[sundermann]

Just one more small change moved setting m_frameSize so it's not updated all the time which is not necessary

[sundermann]

Jenkins build this please

[Noltari]

@sundermann I tested this yesterday and the DTS audio seems to have sync issues, which doesn't happen to me with AC3 passthrough.
I'm not sure if that's possible or maybe it's related to #24193...

[sundermann]

Nothing more we can do in the sink with the limited API we have available now.