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LibWeb: Populate AudioTimestamp dictionaries

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Return the required AudioTimestamp members from getOutputTimestamp even
while the WebAudio rendering graph does not yet produce output timing.
This keeps the generated bindings from unwrapping missing required
fields.

Add a crash test that exercises AudioContext.getOutputTimestamp().
This commit is contained in:
Andreas Kling 2026-05-22 18:46:51 +02:00 committed by Andreas Kling
parent 804bf2532b
commit c997de97c3
2 changed files with 14 additions and 2 deletions
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11
Libraries/LibWeb/WebAudio/AudioContext.cpp
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@ -135,8 +135,15 @@ void AudioContext::visit_edges(Cell::Visitor& visitor)
// https://www.w3.org/TR/webaudio/#dom-audiocontext-getoutputtimestamp
Bindings::AudioTimestamp AudioContext::get_output_timestamp()
{
dbgln("(STUBBED) getOutputTimestamp()");
return {};
// If the context's rendering graph has not yet processed a block of audio, then
// getOutputTimestamp call returns an AudioTimestamp instance with both members
// containing zero.
// FIXME: Once we process audio blocks, report the current output stream position
// and the corresponding performance time here.
return {
.context_time = 0.0,
.performance_time = 0.0,
};
}
// https://www.w3.org/TR/webaudio/#dom-audiocontext-resume

5
Tests/LibWeb/Crash/WebAudio/AudioContext-getOutputTimestamp.html Normal file
View file

@ -0,0 +1,5 @@
<!DOCTYPE html>
<script>
const context = new AudioContext();
context.getOutputTimestamp();
</script>