mozilla-central/testing/web-platform/tests/webcodecs/reconfiguring-encoder.https.any.js (file symbol)

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Test Info: Warnings

// META: timeout=long
// META: global=window,dedicatedworker
// META: script=/webcodecs/video-encoder-utils.js
// META: variant=?av1
// META: variant=?vp8
// META: variant=?vp9_p0
// META: variant=?vp9_p2
// META: variant=?h264_avc
// META: variant=?h264_annexb
var ENCODER_CONFIG = null;
promise_setup(async () => {
const config = {
'?av1': {codec: 'av01.0.04M.08'},
'?vp8': {codec: 'vp8'},
'?vp9_p0': {codec: 'vp09.00.10.08'},
'?vp9_p2': {codec: 'vp09.02.10.10'},
'?h264_avc': {codec: 'avc1.42001F', avc: {format: 'avc'}},
'?h264_annexb': {codec: 'avc1.42001F', avc: {format: 'annexb'}}
}[location.search];
config.hardwareAcceleration = 'prefer-software';
config.bitrateMode = "constant";
config.framerate = 30;
ENCODER_CONFIG = config;
});
promise_test(async t => {
let original_w = 800;
let original_h = 600;
let original_bitrate = 3_000_000;
let new_w = 640;
let new_h = 480;
let new_bitrate = 2_000_000;
let next_ts = 0
let reconf_ts = 0;
let frames_to_encode = 16;
let before_reconf_frames = 0;
let after_reconf_frames = 0;
let process_video_chunk = function (chunk, metadata) {
let config = metadata.decoderConfig;
var data = new Uint8Array(chunk.data);
assert_greater_than_equal(data.length, 0);
let after_reconf = (reconf_ts != 0) && (chunk.timestamp >= reconf_ts);
if (after_reconf) {
after_reconf_frames++;
if (config) {
assert_equals(config.codedWidth, new_w);
assert_equals(config.codedHeight, new_h);
}
} else {
before_reconf_frames++;
if (config) {
assert_equals(config.codedWidth, original_w);
assert_equals(config.codedHeight, original_h);
}
}
};
const init = {
output: (chunk, md) => {
try {
process_video_chunk(chunk, md);
} catch (e) {
assert_unreached(e.message);
}
},
error: (e) => {
assert_unreached(e.message);
},
};
const params = {
...ENCODER_CONFIG,
width: original_w,
height: original_h,
bitrate: original_bitrate,
};
await checkEncoderSupport(t, params);
let encoder = new VideoEncoder(init);
encoder.configure(params);
// Remove this flush after crbug.com/1275789 is fixed
await encoder.flush();
// Encode |frames_to_encode| frames with original settings
for (let i = 0; i < frames_to_encode; i++) {
var frame = createFrame(original_w, original_h, next_ts++);
encoder.encode(frame, {});
frame.close();
}
params.width = new_w;
params.height = new_h;
params.bitrate = new_bitrate;
// Reconfigure encoder and run |frames_to_encode| frames with new settings
encoder.configure(params);
reconf_ts = next_ts;
for (let i = 0; i < frames_to_encode; i++) {
var frame = createFrame(new_w, new_h, next_ts++);
encoder.encode(frame, {});
frame.close();
}
await encoder.flush();
// Configure back to original config
params.width = original_w;
params.height = original_h;
params.bitrate = original_bitrate;
encoder.configure(params);
await encoder.flush();
encoder.close();
assert_equals(before_reconf_frames, frames_to_encode);
assert_equals(after_reconf_frames, frames_to_encode);
}, "Reconfiguring encoder");