// META: global=window,dedicatedworker
// META: script=/webcodecs/utils.js
const invalidConfigs = [
{
comment: 'Missing codec',
config: {
width: 640,
height: 480,
},
},
{
comment: 'Empty codec',
config: {
codec: '',
width: 640,
height: 480,
},
},
{
comment: 'Width is 0',
config: {
codec: 'vp8',
width: 0,
height: 480,
},
},
{
comment: 'Height is 0',
config: {
codec: 'vp8',
width: 640,
height: 0,
},
},
{
comment: 'displayWidth is 0',
config: {
codec: 'vp8',
displayWidth: 0,
width: 640,
height: 480,
},
},
{
comment: 'displayHeight is 0',
config: {
codec: 'vp8',
width: 640,
displayHeight: 0,
height: 480,
},
},
{
comment: 'bitrate is present but zero',
config: {
codec: 'vp8',
width: 640,
height: 480,
bitrate: 0
},
},
];
invalidConfigs.forEach(entry => {
promise_test(
t => {
return promise_rejects_js(
t, TypeError, VideoEncoder.isConfigSupported(entry.config));
},
'Test that VideoEncoder.isConfigSupported() rejects invalid config: ' +
entry.comment);
});
invalidConfigs.forEach(entry => {
async_test(
t => {
let codec = new VideoEncoder(getDefaultCodecInit(t));
assert_throws_js(TypeError, () => {
codec.configure(entry.config);
});
t.done();
},
'Test that VideoEncoder.configure() rejects invalid config: ' +
entry.comment);
});
const validButUnsupportedConfigs = [
{
comment: 'Invalid scalability mode',
config: {codec: 'vp8', width: 640, height: 480, scalabilityMode: 'ABC'}
},
{
comment: 'Unrecognized codec',
config: {
codec: 'bogus',
width: 640,
height: 480,
},
},
{
comment: 'VP8 codec string not accepted by Web Codecs',
config: {
codec: 'vp08.00.10.08',
width: 640,
height: 480,
},
},
{
comment: 'Codec with bad casing',
config: {
codec: 'vP8',
width: 640,
height: 480,
},
},
{
comment: 'Width is too large',
config: {
codec: 'vp8',
width: 1000000,
height: 480,
},
},
{
comment: 'Height is too large',
config: {
codec: 'vp8',
width: 640,
height: 1000000,
},
},
{
comment: 'Too strenuous accelerated encoding parameters',
config: {
codec: 'vp8',
hardwareAcceleration: 'prefer-hardware',
width: 20000,
height: 20000,
bitrate: 1,
framerate: 240,
}
},
{
comment: 'Odd sized frames for H264',
config: {
codec: 'avc1.42001E',
width: 641,
height: 480,
bitrate: 1000000,
framerate: 24,
}
},
{
comment: 'Possible future H264 codec string',
config: {
codec: 'avc1.FF000b',
width: 640,
height: 480,
},
},
{
comment: 'Possible future HEVC codec string',
config: {
codec: 'hvc1.C99.6FFFFFF.L93',
width: 640,
height: 480,
},
},
{
comment: 'Possible future VP9 codec string',
config: {
codec: 'vp09.99.99.08',
width: 640,
height: 480,
},
},
{
comment: 'Possible future AV1 codec string',
config: {
codec: 'av01.9.99M.08',
width: 640,
height: 480,
},
},
];
validButUnsupportedConfigs.forEach(entry => {
let config = entry.config;
promise_test(
async t => {
let support = await VideoEncoder.isConfigSupported(config);
assert_false(support.supported);
let new_config = support.config;
assert_equals(new_config.codec, config.codec);
assert_equals(new_config.width, config.width);
assert_equals(new_config.height, config.height);
if (config.bitrate)
assert_equals(new_config.bitrate, config.bitrate);
if (config.framerate)
assert_equals(new_config.framerate, config.framerate);
},
'Test that VideoEncoder.isConfigSupported() doesn\'t support config: ' +
entry.comment);
});
validButUnsupportedConfigs.forEach(entry => {
promise_test(
t => {
let isErrorCallbackCalled = false;
let codec = new VideoEncoder({
output: t.unreached_func('unexpected output'),
error: t.step_func_done(e => {
isErrorCallbackCalled = true;
assert_true(e instanceof DOMException);
assert_equals(e.name, 'NotSupportedError');
assert_equals(codec.state, 'closed', 'state');
})
});
codec.configure(entry.config);
return codec.flush()
.then(t.unreached_func('flush succeeded unexpectedly'))
.catch(t.step_func(e => {
assert_true(isErrorCallbackCalled, "isErrorCallbackCalled");
assert_true(e instanceof DOMException);
assert_equals(e.name, 'NotSupportedError');
assert_equals(codec.state, 'closed', 'state');
}));
},
'Test that VideoEncoder.configure() doesn\'t support config: ' +
entry.comment);
});
const validConfigs = [
{
codec: 'avc1.42001E',
hardwareAcceleration: 'no-preference',
width: 640,
height: 480,
bitrate: 5000000,
framerate: 24,
avc: {format: 'annexb'},
futureConfigFeature: 'foo',
},
{
codec: 'vp8',
hardwareAcceleration: 'no-preference',
width: 800,
height: 600,
bitrate: 7000000,
bitrateMode: 'variable',
framerate: 60,
scalabilityMode: 'L1T2',
futureConfigFeature: 'foo',
latencyMode: 'quality',
avc: {format: 'annexb'}
},
{
codec: 'vp09.00.10.08',
hardwareAcceleration: 'no-preference',
width: 1280,
height: 720,
bitrate: 7000000,
bitrateMode: 'constant',
framerate: 25,
futureConfigFeature: 'foo',
latencyMode: 'realtime',
alpha: 'discard'
}
];
validConfigs.forEach(config => {
promise_test(async t => {
let support = await VideoEncoder.isConfigSupported(config);
assert_implements_optional(support.supported);
let new_config = support.config;
assert_false(new_config.hasOwnProperty('futureConfigFeature'));
assert_equals(new_config.codec, config.codec);
assert_equals(new_config.width, config.width);
assert_equals(new_config.height, config.height);
if (config.bitrate)
assert_equals(new_config.bitrate, config.bitrate);
if (config.framerate)
assert_equals(new_config.framerate, config.framerate);
if (config.bitrateMode)
assert_equals(new_config.bitrateMode, config.bitrateMode);
if (config.latencyMode)
assert_equals(new_config.latencyMode, config.latencyMode);
if (config.alpha)
assert_equals(new_config.alpha, config.alpha);
if (config.avc)
assert_equals(new_config.avc.format, config.avc.format);
}, "VideoEncoder.isConfigSupported() supports:" + JSON.stringify(config));
});
Codebase Browser
chromium