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// META: global=window,dedicatedworker
// META: script=/webcodecs/utils.js
const detachedArrayBuffer = new ArrayBuffer(4);
var b = detachedArrayBuffer.transferToFixedLength();
const invalidConfigs = [
{
comment: 'Missing codec',
config: {
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Empty codec',
config: {
codec: '',
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Missing sampleRate',
config: {
codec: 'opus',
sampleRate: 48000,
},
},
{
comment: 'Missing numberOfChannels',
config: {
codec: 'opus',
sampleRate: 48000,
},
},
{
comment: 'Zero sampleRate',
config: {
codec: 'opus',
sampleRate: 0,
numberOfChannels: 2,
},
},
{
comment: 'Zero channels',
config: {
codec: 'opus',
sampleRate: 8000,
numberOfChannels: 0,
},
},
{
comment: 'Valid configuration except detached description',
config: {
codec: 'opus',
sampleRate: 8000,
numberOfChannels: 1,
description: detachedArrayBuffer
},
},
];
invalidConfigs.forEach(entry => {
promise_test(
t => {
return promise_rejects_js(
t, TypeError, AudioDecoder.isConfigSupported(entry.config));
},
'Test that AudioDecoder.isConfigSupported() rejects invalid config: ' +
entry.comment);
});
invalidConfigs.forEach(entry => {
async_test(
t => {
let codec = new AudioDecoder(getDefaultCodecInit(t));
assert_throws_js(TypeError, () => {
codec.configure(entry.config);
});
t.done();
},
'Test that AudioDecoder.configure() rejects invalid config: ' +
entry.comment);
});
const validButUnsupportedConfigs = [
{
comment: 'Unrecognized codec',
config: {
codec: 'bogus',
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Video codec',
config: {
codec: 'vp8',
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Ambiguous codec',
config: {
codec: 'vp9',
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Codec with MIME type',
config: {
codec: 'audio/webm; codecs="opus"',
sampleRate: 48000,
numberOfChannels: 2,
},
},
{
comment: 'Possible future opus codec string',
config: {
codec: 'opus.123',
sampleRate: 48000,
numberOfChannels: 2,
}
},
{
comment: 'Possible future aac codec string',
config: {
codec: 'mp4a.FF.9',
sampleRate: 48000,
numberOfChannels: 2,
}
},
];
validButUnsupportedConfigs.forEach(entry => {
promise_test(
t => {
return AudioDecoder.isConfigSupported(entry.config).then(support => {
assert_false(support.supported);
});
},
'Test that AudioDecoder.isConfigSupported() doesn\'t support config: ' +
entry.comment);
});
validButUnsupportedConfigs.forEach(entry => {
promise_test(
t => {
let isErrorCallbackCalled = false;
let codec = new AudioDecoder({
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 AudioDecoder.configure() doesn\'t support config: ' +
entry.comment);
});
function getFakeChunk() {
return new EncodedAudioChunk(
{type: 'key', timestamp: 0, data: Uint8Array.of(0)});
}
promise_test(t => {
// AudioDecoderInit lacks required fields.
assert_throws_js(TypeError, () => {
new AudioDecoder({});
});
// AudioDecoderInit has required fields.
let decoder = new AudioDecoder(getDefaultCodecInit(t));
assert_equals(decoder.state, 'unconfigured');
decoder.close();
return endAfterEventLoopTurn();
}, 'Test AudioDecoder construction');
promise_test(t => {
let decoder = new AudioDecoder(getDefaultCodecInit(t));
return testUnconfiguredCodec(t, decoder, getFakeChunk());
}, 'Verify unconfigured AudioDecoder operations');
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