Skip to content

Define presentation timestamp and duration in WebCodecs spec#6

Open
Djuffin wants to merge 1 commit intomainfrom
define-presentation-timestamp-duration-9252964139601911326
Open

Define presentation timestamp and duration in WebCodecs spec#6
Djuffin wants to merge 1 commit intomainfrom
define-presentation-timestamp-duration-9252964139601911326

Conversation

@Djuffin
Copy link
Copy Markdown
Owner

@Djuffin Djuffin commented Apr 15, 2026

This change provides a solid and consistent definition for "presentation timestamp" and "presentation duration" across the WebCodecs API specification. By centralizing these definitions, we improve clarity regarding their units (microseconds), purpose (ordering and synchronization), and epoch-independence. All relevant interfaces (VideoFrame, AudioData, EncodedVideoChunk, and EncodedAudioChunk) have been updated to link to these central definitions.

Additionally, this patch includes:

  • A fix for a documentation typo in the AudioData.timestamp getter steps.
  • Fixes for pre-existing unclosed non-normative
    tags that were causing build failures in strict spec generation environments.

Verified with a successful remote Bikeshed build.


PR created automatically by Jules for task 9252964139601911326 started by @Djuffin

- Add centralized definitions for "presentation timestamp" (PTS) and
  "presentation duration" in the Definitions section.
- Update VideoFrame, AudioData, EncodedVideoChunk, and
  EncodedAudioChunk to link to these new definitions, ensuring
  consistency across the specification.
- Fix a typo in AudioData.timestamp getter documentation.
- Fix unclosed <div class=non-normative> tags in Security and
  Privacy sections to ensure the specification can be built correctly.
@google-labs-jules
Copy link
Copy Markdown

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.


For security, I will only act on instructions from the user who triggered this task.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant