mirror of
https://github.com/Tonejs/Tone.js
synced 2025-01-09 02:18:57 +00:00
432 lines
No EOL
11 KiB
JavaScript
432 lines
No EOL
11 KiB
JavaScript
define(["helper/Basic", "Tone/source/BufferSource", "helper/Offline",
|
|
"Tone/core/Buffer", "helper/Meter", "Tone/core/Tone"],
|
|
function (BasicTests, BufferSource, Offline, Buffer, Meter, Tone) {
|
|
|
|
if (window.__karma__){
|
|
Buffer.baseUrl = "/base/test/";
|
|
}
|
|
|
|
describe("BufferSource", function(){
|
|
|
|
var buffer = new Buffer();
|
|
|
|
beforeEach(function(done){
|
|
buffer.load("./audio/sine.wav", function(){
|
|
done();
|
|
});
|
|
});
|
|
|
|
//run the common tests
|
|
BasicTests(BufferSource, buffer);
|
|
|
|
context("Constructor", function(){
|
|
|
|
it ("can be constructed with a Tone.Buffer", function(done){
|
|
var source = new BufferSource(buffer);
|
|
expect(source.buffer).to.equal(buffer.get());
|
|
source.dispose();
|
|
done();
|
|
});
|
|
|
|
it ("can be constructed with an AudioBuffer", function(done){
|
|
var source = new BufferSource(buffer.get());
|
|
expect(source.buffer).to.equal(buffer.get());
|
|
source.dispose();
|
|
done();
|
|
});
|
|
|
|
it("can be created with an options object", function(){
|
|
var source = new BufferSource({
|
|
"buffer" : buffer,
|
|
"loop" : true
|
|
});
|
|
expect(source.loop).to.equal(true);
|
|
source.dispose();
|
|
});
|
|
});
|
|
|
|
context("Starts and Stops", function(){
|
|
|
|
it ("can be constructed with a Tone.Buffer", function(done){
|
|
var source = new BufferSource(buffer);
|
|
expect(source.buffer).to.equal(buffer.get());
|
|
source.dispose();
|
|
done();
|
|
});
|
|
|
|
it ("can be constructed with an AudioBuffer", function(done){
|
|
var source = new BufferSource(buffer.get());
|
|
expect(source.buffer).to.equal(buffer.get());
|
|
source.dispose();
|
|
done();
|
|
});
|
|
|
|
it("can be created with an options object", function(){
|
|
var source = new BufferSource({
|
|
"buffer" : buffer,
|
|
"loop" : true
|
|
});
|
|
expect(source.loop).to.equal(true);
|
|
source.dispose();
|
|
});
|
|
});
|
|
|
|
context("Looping", function(){
|
|
|
|
beforeEach(function(done){
|
|
buffer.load("./audio/short_sine.wav", function(){
|
|
done();
|
|
});
|
|
});
|
|
|
|
it("can be set to loop", function(){
|
|
var player = new BufferSource();
|
|
player.loop = true;
|
|
expect(player.loop).to.be.true;
|
|
player.dispose();
|
|
});
|
|
|
|
it("loops the audio", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer);
|
|
player.loop = true;
|
|
player.toMaster();
|
|
player.start(0);
|
|
}, buffer.duration * 2).then(function(buff){
|
|
buff.getRMS().forEach(function(val){
|
|
expect(val).to.be.above(0);
|
|
});
|
|
});
|
|
});
|
|
|
|
it("loops the audio for the specific duration", function(){
|
|
var playDur = buffer.duration * 1.5;
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer);
|
|
player.loop = true;
|
|
player.toMaster();
|
|
player.start(0, 0, playDur);
|
|
}, buffer.duration * 2).then(function(buff){
|
|
buff.forEach(function(val, time){
|
|
if (time < (playDur - 0.01)){
|
|
expect(val).to.be.greaterThan(0);
|
|
} else if (time > playDur){
|
|
expect(val).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("starts at the loop start offset if looping", function(){
|
|
var offsetTime = 0.1;
|
|
var offsetSample = buffer.toArray()[Math.floor(offsetTime * Tone.context.sampleRate)];
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.loop = true;
|
|
player.loopStart = offsetTime;
|
|
player.start(0);
|
|
}, 0.05).then(function(buffer){
|
|
expect(buffer.toArray()[0]).to.equal(offsetSample);
|
|
});
|
|
});
|
|
|
|
});
|
|
|
|
context("Get/Set", function(){
|
|
|
|
it("can be set with an options object", function(){
|
|
var player = new BufferSource();
|
|
expect(player.loop).to.be.false;
|
|
player.set({
|
|
"loop" : true,
|
|
"loopStart" : 0.4,
|
|
"loopEnd" : 0.5
|
|
});
|
|
expect(player.loop).to.be.true;
|
|
expect(player.loopStart).to.equal(0.4);
|
|
expect(player.loopEnd).to.equal(0.5);
|
|
player.dispose();
|
|
});
|
|
|
|
|
|
it("can get/set the playbackRate", function(){
|
|
var player = new BufferSource();
|
|
player.playbackRate.value = 0.5;
|
|
expect(player.playbackRate.value).to.equal(0.5);
|
|
player.dispose();
|
|
});
|
|
|
|
});
|
|
|
|
context("onended", function(){
|
|
|
|
beforeEach(function(done){
|
|
buffer.load("./audio/sine.wav", function(){
|
|
done();
|
|
});
|
|
});
|
|
|
|
it("schedules the onended callback in online context", function(done){
|
|
|
|
var player = new BufferSource(buffer);
|
|
player.start().stop("+0.1");
|
|
|
|
var wasCalled = false;
|
|
player.onended = function(plyr){
|
|
expect(plyr).to.equal(player);
|
|
wasCalled = true;
|
|
};
|
|
setTimeout(function(){
|
|
expect(wasCalled).to.be.true;
|
|
expect(player.state).to.equal("stopped");
|
|
player.dispose();
|
|
done();
|
|
}, 300);
|
|
});
|
|
|
|
it("schedules the onended callback when offline", function(done){
|
|
|
|
Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0.2).stop(0.4);
|
|
player.onended = function(){
|
|
done();
|
|
};
|
|
}, 0.5);
|
|
});
|
|
|
|
it("invokes the onedned callback when a looped buffer is scheduled to stop", function(done){
|
|
|
|
Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.loop = true;
|
|
player.start().stop(0.4);
|
|
player.onended = function(){
|
|
done();
|
|
};
|
|
}, 0.5);
|
|
});
|
|
|
|
it("schedules the onended callback when the buffer is done without scheduling stop", function(done){
|
|
|
|
Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0);
|
|
player.onended = function(){
|
|
done();
|
|
};
|
|
}, buffer.duration * 1.1);
|
|
});
|
|
|
|
|
|
});
|
|
|
|
context("state", function(){
|
|
|
|
beforeEach(function(done){
|
|
buffer.load("./audio/sine.wav", function(){
|
|
done();
|
|
});
|
|
});
|
|
|
|
it("reports the right state when scheduled to stop", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0.2).stop(0.4);
|
|
|
|
return function(time){
|
|
if (time >= 0.2 && time < 0.4){
|
|
expect(player.state).to.equal("started");
|
|
} else {
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
};
|
|
}, 0.5);
|
|
});
|
|
|
|
it("reports the right state when not scheduled to stop", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0);
|
|
|
|
return function(time){
|
|
if (time >= 0 && time < buffer.duration){
|
|
expect(player.state).to.equal("started");
|
|
} else {
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
};
|
|
}, buffer.duration * 1.1);
|
|
});
|
|
|
|
it("reports the right state when duration is passed into start method", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, 0, 0.1);
|
|
|
|
return function(time){
|
|
if (time >= 0 && time < 0.1){
|
|
expect(player.state).to.equal("started");
|
|
} else {
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
};
|
|
}, 0.2);
|
|
});
|
|
});
|
|
|
|
context("Start/Stop Scheduling", function(){
|
|
|
|
beforeEach(function(done){
|
|
buffer.load("./audio/sine.wav", function(){
|
|
done();
|
|
});
|
|
});
|
|
|
|
it("can play for a specific duration", function(){
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0).stop(0.1);
|
|
|
|
return function(time){
|
|
if (time > 0.1){
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
};
|
|
}, 0.4).then(function(buffer){
|
|
buffer.forEach(function(level, time){
|
|
if (time >= 0 && time < 0.1){
|
|
expect(level).to.be.greaterThan(0);
|
|
} else if (time > 0.3){
|
|
expect(level).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can play for a specific duration passed in the 'start' method", function(){
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, 0, 0.1);
|
|
|
|
return function(time){
|
|
if (time > 0.1){
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
};
|
|
}, 0.4).then(function(buffer){
|
|
buffer.forEach(function(level, time){
|
|
if (time >= 0 && time < 0.1){
|
|
expect(level).to.be.greaterThan(0);
|
|
} else if (time > 0.11){
|
|
expect(level).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can start at an offset", function(){
|
|
var offsetTime = 0.1;
|
|
var offsetSample = buffer.toArray()[Math.floor(offsetTime * Tone.context.sampleRate)];
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, offsetTime);
|
|
}, 0.05).then(function(buffer){
|
|
expect(buffer.toArray()[0]).to.equal(offsetSample);
|
|
});
|
|
});
|
|
|
|
it("won't play for longer than the buffer's duration minus the offset", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, 0.1, buffer.duration);
|
|
return function(time){
|
|
if (time > buffer.duration - 0.1){
|
|
expect(player.state).to.equal("stopped");
|
|
}
|
|
}
|
|
}, buffer.duration);
|
|
});
|
|
|
|
it("does not play for shorter than the ramp in time", function(){
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer);
|
|
player.toMaster();
|
|
player.start(0, 0, undefined, 1, 0.1).stop(0.05);
|
|
}, 0.2).then(function(buffer){
|
|
buffer.forEach(function(level, time){
|
|
if (time >= 0 && time < 0.1){
|
|
expect(level).to.be.greaterThan(0);
|
|
} else if (time > 0.1){
|
|
expect(level).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can be scheduled to stop", function(){
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0).stop(0.1);
|
|
}, 0.6).then(function(rms){
|
|
rms.forEach(function(level, time){
|
|
if (time > 0.01 && time < 0.1){
|
|
expect(level).to.be.gt(0);
|
|
} else if (time > 0.11){
|
|
expect(level).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can be scheduled to stop with a ramp", function(){
|
|
return Meter(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0).stop(0.1, 0.1);
|
|
}, 0.6).then(function(rms){
|
|
rms.forEach(function(level, time){
|
|
if (time > 0.01 && time < 0.2){
|
|
expect(level).to.be.gt(0);
|
|
} else if (time > 0.21){
|
|
expect(level).to.equal(0);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can be scheduled to start at a lower gain", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, 0, undefined, 0.5);
|
|
}, 0.5).then(function(buffer){
|
|
buffer.forEach(function(sample){
|
|
expect(sample).to.be.lte(0.5);
|
|
});
|
|
});
|
|
});
|
|
|
|
it("can be scheduled to start with a ramp", function(){
|
|
return Offline(function(){
|
|
var player = new BufferSource(buffer).toMaster();
|
|
player.start(0, 0, undefined, 1, 0.1);
|
|
}, 0.5).then(function(buffer){
|
|
buffer.forEach(function(sample, time){
|
|
if (time < 0.1){
|
|
expect(sample).to.be.lte(time * 10);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it("cannot be started more than once", function(){
|
|
var player = new BufferSource(buffer);
|
|
player.start();
|
|
expect(function(){
|
|
player.start();
|
|
}).to.throw(Error);
|
|
player.dispose();
|
|
});
|
|
});
|
|
|
|
});
|
|
}); |