Issues for MPEG#140

[haudiobe]

• v4.5 of dash.js
• Content Steering
• Events - end of presentation
• possibly audio

Please add others and expand on the above

[dsilhavy]

For dash.js:

dash.js version 4.5.0 was officially released on 28th September 2022. The main changes include:

Features

• Added support for content steering as defined in the IOP specification
• New playback catchup seeking/pausing logic: Adjust the liveDelay when the user seeks/pauses. Then catchup mode is applied with the new live delay as target value.By calling player.seekToLive() the app can jump back to this original live delay
• Allow requests to be modified in an async manner.
• Matcher" for the XML parser; it checks lang attributes read from MPDs and normalizes them into a BCP-47 compliant format. In addition, normalize language tags provided through dash.js' setInitialMediaSettingsFor()-API as Strings, while using RegExp through this API is maintained.

Improvements/ Bugfixes

• Fixes the selection of a key system with parameters specified by the application. As an example, the robustnessLevel can be specified individually for audio and video tracks. Before this PR, only one of the provided values was used, either audio or video.
• Lower minPlaybackRateChange for non-Safari browsers depending on the maximum catchup rate. Otherwise the target live delay is not reached for low catchup rates.

Complete Release information

• Complete Release notes: https://github.com/Dash-Industry-Forum/dash.js/releases/tag/v4.5.0
• Reference Player: https://reference.dashif.org/dash.js/v4.5.0/samples/dash-if-reference-player/index.html
• Samples: https://reference.dashif.org/dash.js/v4.5.0/samples/index.html

[irajs]

Content Steering: we received community review feedback and we are incorporating it in spec. expected to be published in Q1/23. We will plan to submit a proposal to MPEG to add the necessary extension to MPEG spec to support content steering.

Event: we have a question about end-of-presentation signaling. reference the issue tracker and suggests MPEG to find an answer.

Progress of IOP V5

(Iraj) 1st draft to IOP email on Thursday.