Mahesh Kannan
5844804a83
Automatic update from web-platform-tests
[WebAudio] Add tests and baseline failure for unaligned looping
This is Part 1 of a 2-part CL addressing crbug.com/553218226.
This CL introduces test coverage for looping AudioBufferSourceNodes
across boundary conditions, refactors the test suite using a factory
and generator paradigm to reduce boilerplate, and checks in the baseline
failure for unaligned buffer looping:
1. audiobuffersource-loop-continuous.html:
WPT test covering multi-cycle looping of unaligned buffer lengths
(65,201 frames) and grain duration boundaries.
2. audiobuffersource-loop-continuous-expected.txt:
Captures the existing trunk failure where frame 65,200 is duplicated
and frame 0 is skipped upon wrap.
3. AudioBufferSourceHandlerTest:
- Refactored test fixture to AudioBufferSourceHandlerTestBase with
shared ProcessOnAudioThread helper returning std::array.
- Introduced CreateAudioBuffer generator helper and
CreateEnvironmentWithBuffer factory helper, cutting boilerplate.
- LoopOffsetBeyondLoopEndPositiveRate: Tests clamping when
offset >= loopEnd.
- LoopOffsetBelowLoopStartPositiveRate: Tests intro playback before
loopStart.
- LoopSingleSampleBuffer: Tests 1-sample buffer looping without
division by zero.
- LoopInvertedBoundsFallbackToWholeBuffer: Tests fallback to whole
buffer when loopStart >= loopEnd per W3C §1.15.3.
- LoopNegativeRateBackwardWrap: Tests backwards looping with negative
playbackRate, including boundary wrap back to loopEnd.
- LoopingUnalignedBufferFractionalLoopEndInterpolation: Tests
fractional loopEnd interpolation.
- DISABLED_LoopingUnalignedBufferPrecision: Reproduction of
bug 553218226, to be re-enabled in Part 2.
- DISABLED_LoopingUnalignedBufferExplicitLoopEnd: Tests explicit
loopEnd = buffer.duration, to be re-enabled in Part 2.
- DISABLED_LoopingGranularityWrapPrecision: Granularity matrix
reproduction in AudioBufferSourceGranularityTest, to be
re-enabled in Part 2.
- DISABLED_VaryingRatesInterpolatedWrapPrecision: Rate 0.5 wrap
reproduction, to be re-enabled in Part 2.
TAG=agy
CONV=dcf17c2a-023a-4313-a7d5-deba45eca250
Bug: 553218226
Test: external/wpt/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-loop-continuous.html
Test: out/Release/blink_unittests --gtest_filter="*AudioBufferSource*"
Change-Id: I4262acd240362268b5a1dff20b8c6721e3c2d8bb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8333135
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Commit-Queue: Mahesh Kannan <kmaheshb@google.com>
Cr-Commit-Position: refs/heads/main@{#1694250}
--
wpt-commits: 9eac876da93ec14a01a1633087c15d4430330013
wpt-pr: 62482
Our test suite is currently tracking the editor's draft of the Web Audio API.
The tests are arranged in subdirectories, corresponding to different
sections of the spec. So, for example, tests for the DelayNode are
in the-audio-api/the-delaynode-interface.