fix(render): fix WebM transparency — use screenshot mode + proper CDP setup

Browse Source

- Force screenshot capture mode for WebM (beginFrame doesn't support
  alpha channel in chrome-headless-shell)
- Set Emulation.setDefaultBackgroundColorOverride once during session
  creation (matching experiment-framework's approach)
- Fix acquireBrowser to pass executable path in screenshot mode on
  Linux (was setting undefined, causing puppeteer-core to fail)
- Add Page.captureScreenshot params: fromSurface, captureBeyondViewport,
  optimizeForSpeed (matching experiment-framework)
- Fix regression harness extractMonoPcm16 for videos without audio
- Add getEncoderPreset unit tests
- Add webm-transparency regression test with golden baseline

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

...

This commit is contained in:

James

2026-03-27 02:35:03 +00:00

co-authored by Claude Opus 4.6

parent a146c9e527

commit efc7b82755

5 changed files with 10 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download Patch File Download Diff File Expand all files Collapse all files

packages/producer/tests/webm-transparency/output/output.webm

BIN

Binary file not shown.