forked from mirrors/gecko-dev
bb0dbe6ad5
Automatic update from web-platform-tests
[WebCodecs] Add a wpt verifying the encoded profile for H264.
Checks baseline, main, high by seeing what profileIndication is
put inside the AVCC record.
R=sandersd
Bug: 1466392
Change-Id: I913e8fc4f8a46d02570f0570b7c005c871f0e143
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4803433
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Commit-Queue: Dan Sanders <sandersd@chromium.org>
Auto-Submit: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1187369}
--
wpt-commits: 08578d324a4c3a9b2147de1340623cde2e415cd9
wpt-pr: 41593
69 lines
2 KiB
JavaScript
69 lines
2 KiB
JavaScript
// META: global=window,dedicatedworker
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// META: script=/common/media.js
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// META: script=/webcodecs/utils.js
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// META: script=/webcodecs/video-encoder-utils.js
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// META: variant=?baseline
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// META: variant=?main
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// META: variant=?high
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promise_test(async t => {
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const codecString = {
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'?baseline': 'avc1.42001e',
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'?main': 'avc1.4d001e',
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'?high': 'avc1.64001e',
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}[location.search];
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let encoderConfig = {
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codec: codecString,
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width: 640,
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height: 480,
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displayWidth: 800,
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displayHeight: 600,
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avc: {format: 'avc'}, // AVC makes it easy to check the profile.
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};
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let supported = false;
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try {
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const support = await VideoEncoder.isConfigSupported(encoderConfig);
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supported = support.supported;
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} catch (e) {
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}
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assert_implements_optional(
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supported, `H264 ${location.search.substring(1)} profile unsupported`);
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let description = null;
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let codecInit = {
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error: t.unreached_func('Unexpected encoding error'),
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output: (_, metadata) => {
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assert_not_equals(metadata, null);
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if (metadata.decoderConfig)
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description = metadata.decoderConfig.description;
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},
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};
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let encoder = new VideoEncoder(codecInit);
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encoder.configure(encoderConfig);
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let frame1 = createFrame(640, 480, 0);
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let frame2 = createFrame(640, 480, 33333);
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t.add_cleanup(() => {
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frame1.close();
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frame2.close();
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});
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encoder.encode(frame1);
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encoder.encode(frame2);
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await encoder.flush();
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assert_not_equals(description, null);
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assert_not_equals(description.length, 0);
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// Profile is a hex code at xx in a codec string of form "avc1.xxyyzz".
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let expectedProfileIndication = parseInt(codecString.substring(5, 7), 16);
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// See AVCDecoderConfigurationRecord in ISO/IEC 14496-15 for details.
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// https://www.w3.org/TR/webcodecs-avc-codec-registration/#dom-avcbitstreamformat-avc
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let profileIndication = new Uint8Array(description)[1];
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assert_equals(profileIndication, expectedProfileIndication);
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}, 'Test that encoding with a specific H264 profile actually produces that profile.');
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