Feature/alternative media presentations#4868
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This reverts commit 5f340c1.
Update alternative mpd syntaxis
… log in PlaybackController
…live-to-live-switch-back feat: Implement live to live switch back
* alternative clip functional test vod to vod * small refacotr alternative replace live functional test * add clip live to live test case * fix clip for live to live * Update test/functional/test/feature-support/alternative/alternative-mpd-clip-vod.js Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * remove comment * Update src/streaming/controllers/AlternativeMediaController.js Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * rename deltaTime * remove comments * add missing clear timeouts * add missing done --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
…in EventController and AlternativeMediaController
…update-and-listen-mode Add Alternative event update and listen mode
This reverts commit bf31094.
…validity-expiration Revert "Feature MPD update on validity expiration"
Co-authored-by: Sebastian Piquerez <sebastianp@qualabs.com>
…listen-mode-sample-page Add Listen Mode sample and update samples.json with new entry
…e correct HTML file
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Description
Implementation of Alternative Media Presentations as defined in DASH 6 specification. This PR adds support for two new event types that enable dynamic content switching during playback:
Changes
Alternative Events Attributes Support
earliestResolutionTimeOffset: Time before event trigger when alternative media resolution beginsmaxDuration: Maximum duration for alternative contentnoJump: Prevents skipping of eventsclip: Limits alternative content duration to main content durationstartAtPlayhead: Used with non-clip content, alternative content starts offset by the delay from event triggerreturnOffset: Offset applied when returning to main content after alternative content endsCore Changes
earliestResolutionTimeOffset,noJump, and re-triggerable eventsNew Events
alternativeContentStart: Fired when alternative content starts playingalternativeContentEnd: Fired when alternative content finishes playingImplemented Use Cases
Listen Mode Implementation
Using events with
'update'status, the duration of alternative content can be dynamically modified to extend or end earlier than originally planned.Testing
Unit Tests:
Functional Tests:
clipattributenoJumpattributeearliestResolutionTimeOffsetmaxDurationstartAtPlayheadattributeSample Pages
Three example pages have been created to demonstrate the implementation:
alternative-media-presentations.html: General usage exampleslive-to-live.html: Live content with alternative live contentlisten-mode.html: Listen mode demonstrationKnown Issues
This solution uses the
preload()method, which has issues with multi-period assets. Therefore, alternative content cannot be multi-period.