var JSMpeg = {
|
Player: null,
|
VideoElement: null,
|
BitBuffer: null,
|
Source: {},
|
Demuxer: {},
|
Decoder: {},
|
Renderer: {},
|
AudioOutput: {},
|
Now: function() {
|
return window.performance ? window.performance.now() / 1e3: Date.now() / 1e3
|
},
|
CreateVideoElements: function() {
|
var elements = document.querySelectorAll(".jsmpeg");
|
for (var i = 0; i < elements.length; i++) {
|
new JSMpeg.VideoElement(elements[i])
|
}
|
},
|
Fill: function(array, value) {
|
if (array.fill) {
|
array.fill(value)
|
} else {
|
for (var i = 0; i < array.length; i++) {
|
array[i] = value
|
}
|
}
|
},
|
Base64ToArrayBuffer: function(base64) {
|
var binary = window.atob(base64);
|
var length = binary.length;
|
var bytes = new Uint8Array(length);
|
for (var i = 0; i < length; i++) {
|
bytes[i] = binary.charCodeAt(i)
|
}
|
return bytes.buffer
|
},
|
WASM_BINARY_INLINED: null
|
};
|
if (document.readyState === "complete") {
|
JSMpeg.CreateVideoElements()
|
} else {
|
document.addEventListener("DOMContentLoaded", JSMpeg.CreateVideoElements)
|
}
|
JSMpeg.VideoElement = function() {
|
"use strict";
|
var VideoElement = function(element) {
|
var url = element.dataset.url;
|
if (!url) {
|
throw "VideoElement has no `data-url` attribute"
|
}
|
var addStyles = function(element, styles) {
|
for (var name in styles) {
|
element.style[name] = styles[name]
|
}
|
};
|
this.container = element;
|
addStyles(this.container, {
|
display: "inline-block",
|
position: "relative",
|
minWidth: "80px",
|
minHeight: "80px"
|
});
|
this.canvas = document.createElement("canvas");
|
this.canvas.width = 960;
|
this.canvas.height = 540;
|
addStyles(this.canvas, {
|
display: "block",
|
width: "100%"
|
});
|
this.container.appendChild(this.canvas);
|
this.playButton = document.createElement("div");
|
this.playButton.innerHTML = VideoElement.PLAY_BUTTON;
|
addStyles(this.playButton, {
|
zIndex: 2,
|
position: "absolute",
|
top: "0",
|
bottom: "0",
|
left: "0",
|
right: "0",
|
maxWidth: "75px",
|
maxHeight: "75px",
|
margin: "auto",
|
opacity: "0.7",
|
cursor: "pointer"
|
});
|
this.container.appendChild(this.playButton);
|
var options = {
|
canvas: this.canvas
|
};
|
for (var option in element.dataset) {
|
try {
|
options[option] = JSON.parse(element.dataset[option])
|
} catch(err) {
|
options[option] = element.dataset[option]
|
}
|
}
|
this.player = new JSMpeg.Player(url, options);
|
element.playerInstance = this.player;
|
if (options.poster && !options.autoplay && !this.player.options.streaming) {
|
options.decodeFirstFrame = false;
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this.poster = new Image;
|
this.poster.src = options.poster;
|
this.poster.addEventListener("load", this.posterLoaded);
|
addStyles(this.poster, {
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display: "block",
|
zIndex: 1,
|
position: "absolute",
|
top: 0,
|
left: 0,
|
bottom: 0,
|
right: 0
|
});
|
this.container.appendChild(this.poster)
|
}
|
if (!this.player.options.streaming) {
|
this.container.addEventListener("click", this.onClick.bind(this))
|
}
|
if (options.autoplay || this.player.options.streaming) {
|
this.playButton.style.display = "none"
|
}
|
if (this.player.audioOut && !this.player.audioOut.unlocked) {
|
var unlockAudioElement = this.container;
|
if (options.autoplay || this.player.options.streaming) {
|
this.unmuteButton = document.createElement("div");
|
this.unmuteButton.innerHTML = VideoElement.UNMUTE_BUTTON;
|
addStyles(this.unmuteButton, {
|
zIndex: 2,
|
position: "absolute",
|
bottom: "10px",
|
right: "20px",
|
width: "75px",
|
height: "75px",
|
margin: "auto",
|
opacity: "0.7",
|
cursor: "pointer"
|
});
|
this.container.appendChild(this.unmuteButton);
|
unlockAudioElement = this.unmuteButton
|
}
|
this.unlockAudioBound = this.onUnlockAudio.bind(this, unlockAudioElement);
|
unlockAudioElement.addEventListener("touchstart", this.unlockAudioBound, false);
|
unlockAudioElement.addEventListener("click", this.unlockAudioBound, true)
|
}
|
};
|
VideoElement.prototype.onUnlockAudio = function(element, ev) {
|
if (this.unmuteButton) {
|
ev.preventDefault();
|
ev.stopPropagation()
|
}
|
this.player.audioOut.unlock(function() {
|
if (this.unmuteButton) {
|
this.unmuteButton.style.display = "none"
|
}
|
element.removeEventListener("touchstart", this.unlockAudioBound);
|
element.removeEventListener("click", this.unlockAudioBound)
|
}.bind(this))
|
};
|
VideoElement.prototype.onClick = function(ev) {
|
if (this.player.isPlaying) {
|
this.player.pause();
|
this.playButton.style.display = "block"
|
} else {
|
this.player.play();
|
this.playButton.style.display = "none";
|
if (this.poster) {
|
this.poster.style.display = "none"
|
}
|
}
|
};
|
VideoElement.PLAY_BUTTON = '<svg style="max-width: 75px; max-height: 75px;" ' + 'viewBox="0 0 200 200" alt="Play video">' + '<circle cx="100" cy="100" r="90" fill="none" ' + 'stroke-width="15" stroke="#fff"/>' + '<polygon points="70, 55 70, 145 145, 100" fill="#fff"/>' + "</svg>";
|
VideoElement.UNMUTE_BUTTON = '<svg style="max-width: 75px; max-height: 75px;" viewBox="0 0 75 75">' + '<polygon class="audio-speaker" stroke="none" fill="#fff" ' + 'points="39,13 22,28 6,28 6,47 21,47 39,62 39,13"/>' + '<g stroke="#fff" stroke-width="5">' + '<path d="M 49,50 69,26"/>' + '<path d="M 69,50 49,26"/>' + "</g>" + "</svg>";
|
return VideoElement
|
} ();
|
JSMpeg.Player = function() {
|
"use strict";
|
var Player = function(url, options) {
|
this.options = options || {};
|
if (options.source) {
|
this.source = new options.source(url, options);
|
options.streaming = !!this.source.streaming
|
} else if (url.match(/^wss?:\/\//)) {
|
this.source = new JSMpeg.Source.WebSocket(url, options);
|
options.streaming = true
|
} else if (options.progressive !== false) {
|
this.source = new JSMpeg.Source.AjaxProgressive(url, options);
|
options.streaming = false
|
} else {
|
this.source = new JSMpeg.Source.Ajax(url, options);
|
options.streaming = false
|
}
|
this.maxAudioLag = options.maxAudioLag || .25;
|
this.loop = options.loop !== false;
|
this.autoplay = !!options.autoplay || options.streaming;
|
this.demuxer = new JSMpeg.Demuxer.TS(options);
|
this.source.connect(this.demuxer);
|
if (!options.disableWebAssembly && JSMpeg.WASMModule.IsSupported()) {
|
this.wasmModule = new JSMpeg.WASMModule;
|
options.wasmModule = this.wasmModule
|
}
|
if (options.video !== false) {
|
this.video = options.wasmModule ? new JSMpeg.Decoder.MPEG1VideoWASM(options) : new JSMpeg.Decoder.MPEG1Video(options);
|
this.renderer = !options.disableGl && JSMpeg.Renderer.WebGL.IsSupported() ? new JSMpeg.Renderer.WebGL(options) : new JSMpeg.Renderer.Canvas2D(options);
|
this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.VIDEO_1, this.video);
|
this.video.connect(this.renderer)
|
}
|
if (options.audio !== false && JSMpeg.AudioOutput.WebAudio.IsSupported()) {
|
this.audio = options.wasmModule ? new JSMpeg.Decoder.MP2AudioWASM(options) : new JSMpeg.Decoder.MP2Audio(options);
|
this.audioOut = new JSMpeg.AudioOutput.WebAudio(options);
|
this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.AUDIO_1, this.audio);
|
this.audio.connect(this.audioOut)
|
}
|
Object.defineProperty(this, "currentTime", {
|
get: this.getCurrentTime,
|
set: this.setCurrentTime
|
});
|
Object.defineProperty(this, "volume", {
|
get: this.getVolume,
|
set: this.setVolume
|
});
|
this.paused = true;
|
this.unpauseOnShow = false;
|
if (options.pauseWhenHidden !== false) {
|
document.addEventListener("visibilitychange", this.showHide.bind(this))
|
}
|
if (this.wasmModule) {
|
if (JSMpeg.WASM_BINARY_INLINED) {
|
var wasm = JSMpeg.Base64ToArrayBuffer(JSMpeg.WASM_BINARY_INLINED);
|
this.wasmModule.loadFromBuffer(wasm, this.startLoading.bind(this))
|
} else {
|
this.wasmModule.loadFromFile("jsmpeg.wasm", this.startLoading.bind(this))
|
}
|
} else {
|
this.startLoading()
|
}
|
};
|
Player.prototype.startLoading = function() {
|
this.source.start();
|
if (this.autoplay) {
|
this.play()
|
}
|
};
|
Player.prototype.showHide = function(ev) {
|
if (document.visibilityState === "hidden") {
|
this.unpauseOnShow = this.wantsToPlay;
|
this.pause()
|
} else if (this.unpauseOnShow) {
|
this.play()
|
}
|
};
|
Player.prototype.play = function(ev) {
|
if (this.animationId) {
|
return
|
}
|
this.animationId = requestAnimationFrame(this.update.bind(this));
|
this.wantsToPlay = true;
|
this.paused = false
|
};
|
Player.prototype.pause = function(ev) {
|
if (this.paused) {
|
return
|
}
|
cancelAnimationFrame(this.animationId);
|
this.animationId = null;
|
this.wantsToPlay = false;
|
this.isPlaying = false;
|
this.paused = true;
|
if (this.audio && this.audio.canPlay) {
|
this.audioOut.stop();
|
this.seek(this.currentTime)
|
}
|
if (this.options.onPause) {
|
this.options.onPause(this)
|
}
|
};
|
Player.prototype.getVolume = function() {
|
return this.audioOut ? this.audioOut.volume: 0
|
};
|
Player.prototype.setVolume = function(volume) {
|
if (this.audioOut) {
|
this.audioOut.volume = volume
|
}
|
};
|
Player.prototype.stop = function(ev) {
|
this.pause();
|
this.seek(0);
|
if (this.video && this.options.decodeFirstFrame !== false) {
|
this.video.decode()
|
}
|
};
|
Player.prototype.destroy = function() {
|
this.pause();
|
this.source.destroy();
|
this.video && this.video.destroy();
|
this.renderer && this.renderer.destroy();
|
this.audio && this.audio.destroy();
|
this.audioOut && this.audioOut.destroy()
|
};
|
Player.prototype.seek = function(time) {
|
var startOffset = this.audio && this.audio.canPlay ? this.audio.startTime: this.video.startTime;
|
if (this.video) {
|
this.video.seek(time + startOffset)
|
}
|
if (this.audio) {
|
this.audio.seek(time + startOffset)
|
}
|
this.startTime = JSMpeg.Now() - time
|
};
|
Player.prototype.getCurrentTime = function() {
|
return this.audio && this.audio.canPlay ? this.audio.currentTime - this.audio.startTime: this.video.currentTime - this.video.startTime
|
};
|
Player.prototype.setCurrentTime = function(time) {
|
this.seek(time)
|
};
|
Player.prototype.update = function() {
|
this.animationId = requestAnimationFrame(this.update.bind(this));
|
if (!this.source.established) {
|
if (this.renderer) {
|
this.renderer.renderProgress(this.source.progress)
|
}
|
return
|
}
|
if (!this.isPlaying) {
|
this.isPlaying = true;
|
this.startTime = JSMpeg.Now() - this.currentTime;
|
if (this.options.onPlay) {
|
this.options.onPlay(this)
|
}
|
}
|
if (this.options.streaming) {
|
this.updateForStreaming()
|
} else {
|
this.updateForStaticFile()
|
}
|
};
|
Player.prototype.updateForStreaming = function() {
|
if (this.video) {
|
this.video.decode()
|
}
|
if (this.audio) {
|
var decoded = false;
|
do {
|
if (this.audioOut.enqueuedTime > this.maxAudioLag) {
|
this.audioOut.resetEnqueuedTime();
|
this.audioOut.enabled = false
|
}
|
decoded = this.audio.decode()
|
} while ( decoded );
|
this.audioOut.enabled = true
|
}
|
};
|
Player.prototype.nextFrame = function() {
|
if (this.source.established && this.video) {
|
return this.video.decode()
|
}
|
return false
|
};
|
Player.prototype.updateForStaticFile = function() {
|
var notEnoughData = false,
|
headroom = 0;
|
if (this.audio && this.audio.canPlay) {
|
while (!notEnoughData && this.audio.decodedTime - this.audio.currentTime < .25) {
|
notEnoughData = !this.audio.decode()
|
}
|
if (this.video && this.video.currentTime < this.audio.currentTime) {
|
notEnoughData = !this.video.decode()
|
}
|
headroom = this.demuxer.currentTime - this.audio.currentTime
|
} else if (this.video) {
|
var targetTime = JSMpeg.Now() - this.startTime + this.video.startTime,
|
lateTime = targetTime - this.video.currentTime,
|
frameTime = 1 / this.video.frameRate;
|
if (this.video && lateTime > 0) {
|
if (lateTime > frameTime * 2) {
|
this.startTime += lateTime
|
}
|
notEnoughData = !this.video.decode()
|
}
|
headroom = this.demuxer.currentTime - targetTime
|
}
|
this.source.resume(headroom);
|
if (notEnoughData && this.source.completed) {
|
if (this.loop) {
|
this.seek(0)
|
} else {
|
this.pause();
|
if (this.options.onEnded) {
|
this.options.onEnded(this)
|
}
|
}
|
} else if (notEnoughData && this.options.onStalled) {
|
this.options.onStalled(this)
|
}
|
};
|
return Player
|
} ();
|
JSMpeg.BitBuffer = function() {
|
"use strict";
|
var BitBuffer = function(bufferOrLength, mode) {
|
if (typeof bufferOrLength === "object") {
|
this.bytes = bufferOrLength instanceof Uint8Array ? bufferOrLength: new Uint8Array(bufferOrLength);
|
this.byteLength = this.bytes.length
|
} else {
|
this.bytes = new Uint8Array(bufferOrLength || 1024 * 1024);
|
this.byteLength = 0
|
}
|
this.mode = mode || BitBuffer.MODE.EXPAND;
|
this.index = 0
|
};
|
BitBuffer.prototype.resize = function(size) {
|
var newBytes = new Uint8Array(size);
|
if (this.byteLength !== 0) {
|
this.byteLength = Math.min(this.byteLength, size);
|
newBytes.set(this.bytes, 0, this.byteLength)
|
}
|
this.bytes = newBytes;
|
this.index = Math.min(this.index, this.byteLength << 3)
|
};
|
BitBuffer.prototype.evict = function(sizeNeeded) {
|
var bytePos = this.index >> 3,
|
available = this.bytes.length - this.byteLength;
|
if (this.index === this.byteLength << 3 || sizeNeeded > available + bytePos) {
|
this.byteLength = 0;
|
this.index = 0;
|
return
|
} else if (bytePos === 0) {
|
return
|
}
|
if (this.bytes.copyWithin) {
|
this.bytes.copyWithin(0, bytePos, this.byteLength)
|
} else {
|
this.bytes.set(this.bytes.subarray(bytePos, this.byteLength))
|
}
|
this.byteLength = this.byteLength - bytePos;
|
this.index -= bytePos << 3;
|
return
|
};
|
BitBuffer.prototype.write = function(buffers) {
|
var isArrayOfBuffers = typeof buffers[0] === "object",
|
totalLength = 0,
|
available = this.bytes.length - this.byteLength;
|
if (isArrayOfBuffers) {
|
var totalLength = 0;
|
for (var i = 0; i < buffers.length; i++) {
|
totalLength += buffers[i].byteLength
|
}
|
} else {
|
totalLength = buffers.byteLength
|
}
|
if (totalLength > available) {
|
if (this.mode === BitBuffer.MODE.EXPAND) {
|
var newSize = Math.max(this.bytes.length * 2, totalLength - available);
|
this.resize(newSize)
|
} else {
|
this.evict(totalLength)
|
}
|
}
|
if (isArrayOfBuffers) {
|
for (var i = 0; i < buffers.length; i++) {
|
this.appendSingleBuffer(buffers[i])
|
}
|
} else {
|
this.appendSingleBuffer(buffers)
|
}
|
return totalLength
|
};
|
BitBuffer.prototype.appendSingleBuffer = function(buffer) {
|
buffer = buffer instanceof Uint8Array ? buffer: new Uint8Array(buffer);
|
this.bytes.set(buffer, this.byteLength);
|
this.byteLength += buffer.length
|
};
|
BitBuffer.prototype.findNextStartCode = function() {
|
for (var i = this.index + 7 >> 3; i < this.byteLength; i++) {
|
if (this.bytes[i] == 0 && this.bytes[i + 1] == 0 && this.bytes[i + 2] == 1) {
|
this.index = i + 4 << 3;
|
return this.bytes[i + 3]
|
}
|
}
|
this.index = this.byteLength << 3;
|
return - 1
|
};
|
BitBuffer.prototype.findStartCode = function(code) {
|
var current = 0;
|
while (true) {
|
current = this.findNextStartCode();
|
if (current === code || current === -1) {
|
return current
|
}
|
}
|
return - 1
|
};
|
BitBuffer.prototype.nextBytesAreStartCode = function() {
|
var i = this.index + 7 >> 3;
|
return i >= this.byteLength || this.bytes[i] == 0 && this.bytes[i + 1] == 0 && this.bytes[i + 2] == 1
|
};
|
BitBuffer.prototype.peek = function(count) {
|
var offset = this.index;
|
var value = 0;
|
while (count) {
|
var currentByte = this.bytes[offset >> 3],
|
remaining = 8 - (offset & 7),
|
read = remaining < count ? remaining: count,
|
shift = remaining - read,
|
mask = 255 >> 8 - read;
|
value = value << read | (currentByte & mask << shift) >> shift;
|
offset += read;
|
count -= read
|
}
|
return value
|
};
|
BitBuffer.prototype.read = function(count) {
|
var value = this.peek(count);
|
this.index += count;
|
return value
|
};
|
BitBuffer.prototype.skip = function(count) {
|
return this.index += count
|
};
|
BitBuffer.prototype.rewind = function(count) {
|
this.index = Math.max(this.index - count, 0)
|
};
|
BitBuffer.prototype.has = function(count) {
|
return (this.byteLength << 3) - this.index >= count
|
};
|
BitBuffer.MODE = {
|
EVICT: 1,
|
EXPAND: 2
|
};
|
return BitBuffer
|
} ();
|
JSMpeg.Source.Ajax = function() {
|
"use strict";
|
var AjaxSource = function(url, options) {
|
this.url = url;
|
this.destination = null;
|
this.request = null;
|
this.streaming = false;
|
this.completed = false;
|
this.established = false;
|
this.progress = 0;
|
this.onEstablishedCallback = options.onSourceEstablished;
|
this.onCompletedCallback = options.onSourceCompleted
|
};
|
AjaxSource.prototype.connect = function(destination) {
|
this.destination = destination
|
};
|
AjaxSource.prototype.start = function() {
|
this.request = new XMLHttpRequest;
|
this.request.onreadystatechange = function() {
|
if (this.request.readyState === this.request.DONE && this.request.status === 200) {
|
this.onLoad(this.request.response)
|
}
|
}.bind(this);
|
this.request.onprogress = this.onProgress.bind(this);
|
this.request.open("GET", this.url);
|
this.request.responseType = "arraybuffer";
|
this.request.send()
|
};
|
AjaxSource.prototype.resume = function(secondsHeadroom) {};
|
AjaxSource.prototype.destroy = function() {
|
this.request.abort()
|
};
|
AjaxSource.prototype.onProgress = function(ev) {
|
this.progress = ev.loaded / ev.total
|
};
|
AjaxSource.prototype.onLoad = function(data) {
|
this.established = true;
|
this.completed = true;
|
this.progress = 1;
|
if (this.onEstablishedCallback) {
|
this.onEstablishedCallback(this)
|
}
|
if (this.onCompletedCallback) {
|
this.onCompletedCallback(this)
|
}
|
if (this.destination) {
|
this.destination.write(data)
|
}
|
};
|
return AjaxSource
|
} ();
|
JSMpeg.Source.Fetch = function() {
|
"use strict";
|
var FetchSource = function(url, options) {
|
this.url = url;
|
this.destination = null;
|
this.request = null;
|
this.streaming = true;
|
this.completed = false;
|
this.established = false;
|
this.progress = 0;
|
this.aborted = false;
|
this.onEstablishedCallback = options.onSourceEstablished;
|
this.onCompletedCallback = options.onSourceCompleted
|
};
|
FetchSource.prototype.connect = function(destination) {
|
this.destination = destination
|
};
|
FetchSource.prototype.start = function() {
|
var params = {
|
method: "GET",
|
headers: new Headers,
|
cache: "default"
|
};
|
self.fetch(this.url, params).then(function(res) {
|
if (res.ok && (res.status >= 200 && res.status <= 299)) {
|
this.progress = 1;
|
this.established = true;
|
return this.pump(res.body.getReader())
|
} else {}
|
}.bind(this)).
|
catch(function(err) {
|
throw err
|
})
|
};
|
FetchSource.prototype.pump = function(reader) {
|
return reader.read().then(function(result) {
|
if (result.done) {
|
this.completed = true
|
} else {
|
if (this.aborted) {
|
return reader.cancel()
|
}
|
if (this.destination) {
|
this.destination.write(result.value.buffer)
|
}
|
return this.pump(reader)
|
}
|
}.bind(this)).
|
catch(function(err) {
|
throw err
|
})
|
};
|
FetchSource.prototype.resume = function(secondsHeadroom) {};
|
FetchSource.prototype.abort = function() {
|
this.aborted = true
|
};
|
return FetchSource
|
} ();
|
JSMpeg.Source.AjaxProgressive = function() {
|
"use strict";
|
var AjaxProgressiveSource = function(url, options) {
|
this.url = url;
|
this.destination = null;
|
this.request = null;
|
this.streaming = false;
|
this.completed = false;
|
this.established = false;
|
this.progress = 0;
|
this.fileSize = 0;
|
this.loadedSize = 0;
|
this.chunkSize = options.chunkSize || 1024 * 1024;
|
this.isLoading = false;
|
this.loadStartTime = 0;
|
this.throttled = options.throttled !== false;
|
this.aborted = false;
|
this.onEstablishedCallback = options.onSourceEstablished;
|
this.onCompletedCallback = options.onSourceCompleted
|
};
|
AjaxProgressiveSource.prototype.connect = function(destination) {
|
this.destination = destination
|
};
|
AjaxProgressiveSource.prototype.start = function() {
|
this.request = new XMLHttpRequest;
|
this.request.onreadystatechange = function() {
|
if (this.request.readyState === this.request.DONE) {
|
this.fileSize = parseInt(this.request.getResponseHeader("Content-Length"));
|
this.loadNextChunk()
|
}
|
}.bind(this);
|
this.request.onprogress = this.onProgress.bind(this);
|
this.request.open("HEAD", this.url);
|
this.request.send()
|
};
|
AjaxProgressiveSource.prototype.resume = function(secondsHeadroom) {
|
if (this.isLoading || !this.throttled) {
|
return
|
}
|
var worstCaseLoadingTime = this.loadTime * 8 + 2;
|
if (worstCaseLoadingTime > secondsHeadroom) {
|
this.loadNextChunk()
|
}
|
};
|
AjaxProgressiveSource.prototype.destroy = function() {
|
this.request.abort();
|
this.aborted = true
|
};
|
AjaxProgressiveSource.prototype.loadNextChunk = function() {
|
var start = this.loadedSize,
|
end = Math.min(this.loadedSize + this.chunkSize - 1, this.fileSize - 1);
|
if (start >= this.fileSize || this.aborted) {
|
this.completed = true;
|
if (this.onCompletedCallback) {
|
this.onCompletedCallback(this)
|
}
|
return
|
}
|
this.isLoading = true;
|
this.loadStartTime = JSMpeg.Now();
|
this.request = new XMLHttpRequest;
|
this.request.onreadystatechange = function() {
|
if (this.request.readyState === this.request.DONE && this.request.status >= 200 && this.request.status < 300) {
|
this.onChunkLoad(this.request.response)
|
} else if (this.request.readyState === this.request.DONE) {
|
if (this.loadFails++<3) {
|
this.loadNextChunk()
|
}
|
}
|
}.bind(this);
|
if (start === 0) {
|
this.request.onprogress = this.onProgress.bind(this)
|
}
|
this.request.open("GET", this.url + "?" + start + "-" + end);
|
this.request.setRequestHeader("Range", "bytes=" + start + "-" + end);
|
this.request.responseType = "arraybuffer";
|
this.request.send()
|
};
|
AjaxProgressiveSource.prototype.onProgress = function(ev) {
|
this.progress = ev.loaded / ev.total
|
};
|
AjaxProgressiveSource.prototype.onChunkLoad = function(data) {
|
var isFirstChunk = !this.established;
|
this.established = true;
|
this.progress = 1;
|
this.loadedSize += data.byteLength;
|
this.loadFails = 0;
|
this.isLoading = false;
|
if (isFirstChunk && this.onEstablishedCallback) {
|
this.onEstablishedCallback(this)
|
}
|
if (this.destination) {
|
this.destination.write(data)
|
}
|
this.loadTime = JSMpeg.Now() - this.loadStartTime;
|
if (!this.throttled) {
|
this.loadNextChunk()
|
}
|
};
|
return AjaxProgressiveSource
|
} ();
|
JSMpeg.Source.WebSocket = function() {
|
"use strict";
|
var WSSource = function(url, options) {
|
this.url = url;
|
this.options = options;
|
this.socket = null;
|
this.streaming = true;
|
this.callbacks = {
|
connect: [],
|
data: []
|
};
|
this.destination = null;
|
this.reconnectInterval = options.reconnectInterval !== undefined ? options.reconnectInterval: 5;
|
this.shouldAttemptReconnect = !!this.reconnectInterval;
|
this.completed = false;
|
this.established = false;
|
this.progress = 0;
|
this.reconnectTimeoutId = 0;
|
this.onEstablishedCallback = options.onSourceEstablished;
|
this.onCompletedCallback = options.onSourceCompleted
|
};
|
WSSource.prototype.connect = function(destination) {
|
this.destination = destination
|
};
|
WSSource.prototype.destroy = function() {
|
clearTimeout(this.reconnectTimeoutId);
|
this.shouldAttemptReconnect = false;
|
this.socket.close()
|
};
|
WSSource.prototype.start = function() {
|
this.shouldAttemptReconnect = !!this.reconnectInterval;
|
this.progress = 0;
|
this.established = false;
|
this.socket = new WebSocket(this.url, this.options.protocols || null);
|
this.socket.binaryType = "arraybuffer";
|
this.socket.onmessage = this.onMessage.bind(this);
|
this.socket.onopen = this.onOpen.bind(this);
|
this.socket.onerror = this.onClose.bind(this);
|
this.socket.onclose = this.onClose.bind(this)
|
};
|
WSSource.prototype.resume = function(secondsHeadroom) {};
|
WSSource.prototype.onOpen = function() {
|
this.progress = 1
|
};
|
WSSource.prototype.onClose = function() {
|
if (this.shouldAttemptReconnect) {
|
clearTimeout(this.reconnectTimeoutId);
|
this.reconnectTimeoutId = setTimeout(function() {
|
this.start()
|
}.bind(this), this.reconnectInterval * 1e3)
|
}
|
};
|
WSSource.prototype.onMessage = function(ev) {
|
var isFirstChunk = !this.established;
|
this.established = true;
|
if (isFirstChunk && this.onEstablishedCallback) {
|
this.onEstablishedCallback(this)
|
}
|
if (this.destination) {
|
this.destination.write(ev.data)
|
}
|
};
|
return WSSource
|
} ();
|
JSMpeg.Demuxer.TS = function() {
|
"use strict";
|
var TS = function(options) {
|
this.bits = null;
|
this.leftoverBytes = null;
|
this.guessVideoFrameEnd = true;
|
this.pidsToStreamIds = {};
|
this.pesPacketInfo = {};
|
this.startTime = 0;
|
this.currentTime = 0
|
};
|
TS.prototype.connect = function(streamId, destination) {
|
this.pesPacketInfo[streamId] = {
|
destination: destination,
|
currentLength: 0,
|
totalLength: 0,
|
pts: 0,
|
buffers: []
|
}
|
};
|
TS.prototype.write = function(buffer) {
|
if (this.leftoverBytes) {
|
var totalLength = buffer.byteLength + this.leftoverBytes.byteLength;
|
this.bits = new JSMpeg.BitBuffer(totalLength);
|
this.bits.write([this.leftoverBytes, buffer])
|
} else {
|
this.bits = new JSMpeg.BitBuffer(buffer)
|
}
|
while (this.bits.has(188 << 3) && this.parsePacket()) {}
|
var leftoverCount = this.bits.byteLength - (this.bits.index >> 3);
|
this.leftoverBytes = leftoverCount > 0 ? this.bits.bytes.subarray(this.bits.index >> 3) : null
|
};
|
TS.prototype.parsePacket = function() {
|
if (this.bits.read(8) !== 71) {
|
if (!this.resync()) {
|
return false
|
}
|
}
|
var end = (this.bits.index >> 3) + 187;
|
var transportError = this.bits.read(1),
|
payloadStart = this.bits.read(1),
|
transportPriority = this.bits.read(1),
|
pid = this.bits.read(13),
|
transportScrambling = this.bits.read(2),
|
adaptationField = this.bits.read(2),
|
continuityCounter = this.bits.read(4);
|
var streamId = this.pidsToStreamIds[pid];
|
if (payloadStart && streamId) {
|
var pi = this.pesPacketInfo[streamId];
|
if (pi && pi.currentLength) {
|
this.packetComplete(pi)
|
}
|
}
|
if (adaptationField & 1) {
|
if (adaptationField & 2) {
|
var adaptationFieldLength = this.bits.read(8);
|
this.bits.skip(adaptationFieldLength << 3)
|
}
|
if (payloadStart && this.bits.nextBytesAreStartCode()) {
|
this.bits.skip(24);
|
streamId = this.bits.read(8);
|
this.pidsToStreamIds[pid] = streamId;
|
var packetLength = this.bits.read(16);
|
this.bits.skip(8);
|
var ptsDtsFlag = this.bits.read(2);
|
this.bits.skip(6);
|
var headerLength = this.bits.read(8);
|
var payloadBeginIndex = this.bits.index + (headerLength << 3);
|
var pi = this.pesPacketInfo[streamId];
|
if (pi) {
|
var pts = 0;
|
if (ptsDtsFlag & 2) {
|
this.bits.skip(4);
|
var p32_30 = this.bits.read(3);
|
this.bits.skip(1);
|
var p29_15 = this.bits.read(15);
|
this.bits.skip(1);
|
var p14_0 = this.bits.read(15);
|
this.bits.skip(1);
|
pts = (p32_30 * 1073741824 + p29_15 * 32768 + p14_0) / 9e4;
|
this.currentTime = pts;
|
if (this.startTime === -1) {
|
this.startTime = pts
|
}
|
}
|
var payloadLength = packetLength ? packetLength - headerLength - 3 : 0;
|
this.packetStart(pi, pts, payloadLength)
|
}
|
this.bits.index = payloadBeginIndex
|
}
|
if (streamId) {
|
var pi = this.pesPacketInfo[streamId];
|
if (pi) {
|
var start = this.bits.index >> 3;
|
var complete = this.packetAddData(pi, start, end);
|
var hasPadding = !payloadStart && adaptationField & 2;
|
if (complete || this.guessVideoFrameEnd && hasPadding) {
|
this.packetComplete(pi)
|
}
|
}
|
}
|
}
|
this.bits.index = end << 3;
|
return true
|
};
|
TS.prototype.resync = function() {
|
if (!this.bits.has(188 * 6 << 3)) {
|
return false
|
}
|
var byteIndex = this.bits.index >> 3;
|
for (var i = 0; i < 187; i++) {
|
if (this.bits.bytes[byteIndex + i] === 71) {
|
var foundSync = true;
|
for (var j = 1; j < 5; j++) {
|
if (this.bits.bytes[byteIndex + i + 188 * j] !== 71) {
|
foundSync = false;
|
break
|
}
|
}
|
if (foundSync) {
|
this.bits.index = byteIndex + i + 1 << 3;
|
return true
|
}
|
}
|
}
|
console.warn("JSMpeg: Possible garbage data. Skipping.");
|
this.bits.skip(187 << 3);
|
return false
|
};
|
TS.prototype.packetStart = function(pi, pts, payloadLength) {
|
pi.totalLength = payloadLength;
|
pi.currentLength = 0;
|
pi.pts = pts
|
};
|
TS.prototype.packetAddData = function(pi, start, end) {
|
pi.buffers.push(this.bits.bytes.subarray(start, end));
|
pi.currentLength += end - start;
|
var complete = pi.totalLength !== 0 && pi.currentLength >= pi.totalLength;
|
return complete
|
};
|
TS.prototype.packetComplete = function(pi) {
|
pi.destination.write(pi.pts, pi.buffers);
|
pi.totalLength = 0;
|
pi.currentLength = 0;
|
pi.buffers = []
|
};
|
TS.STREAM = {
|
PACK_HEADER: 186,
|
SYSTEM_HEADER: 187,
|
PROGRAM_MAP: 188,
|
PRIVATE_1: 189,
|
PADDING: 190,
|
PRIVATE_2: 191,
|
AUDIO_1: 192,
|
VIDEO_1: 224,
|
DIRECTORY: 255
|
};
|
return TS
|
} ();
|
JSMpeg.Decoder.Base = function() {
|
"use strict";
|
var BaseDecoder = function(options) {
|
this.destination = null;
|
this.canPlay = false;
|
this.collectTimestamps = !options.streaming;
|
this.bytesWritten = 0;
|
this.timestamps = [];
|
this.timestampIndex = 0;
|
this.startTime = 0;
|
this.decodedTime = 0;
|
Object.defineProperty(this, "currentTime", {
|
get: this.getCurrentTime
|
})
|
};
|
BaseDecoder.prototype.destroy = function() {};
|
BaseDecoder.prototype.connect = function(destination) {
|
this.destination = destination
|
};
|
BaseDecoder.prototype.bufferGetIndex = function() {
|
return this.bits.index
|
};
|
BaseDecoder.prototype.bufferSetIndex = function(index) {
|
this.bits.index = index
|
};
|
BaseDecoder.prototype.bufferWrite = function(buffers) {
|
return this.bits.write(buffers)
|
};
|
BaseDecoder.prototype.write = function(pts, buffers) {
|
if (this.collectTimestamps) {
|
if (this.timestamps.length === 0) {
|
this.startTime = pts;
|
this.decodedTime = pts
|
}
|
this.timestamps.push({
|
index: this.bytesWritten << 3,
|
time: pts
|
})
|
}
|
this.bytesWritten += this.bufferWrite(buffers);
|
this.canPlay = true
|
};
|
BaseDecoder.prototype.seek = function(time) {
|
if (!this.collectTimestamps) {
|
return
|
}
|
this.timestampIndex = 0;
|
for (var i = 0; i < this.timestamps.length; i++) {
|
if (this.timestamps[i].time > time) {
|
break
|
}
|
this.timestampIndex = i
|
}
|
var ts = this.timestamps[this.timestampIndex];
|
if (ts) {
|
this.bufferSetIndex(ts.index);
|
this.decodedTime = ts.time
|
} else {
|
this.bufferSetIndex(0);
|
this.decodedTime = this.startTime
|
}
|
};
|
BaseDecoder.prototype.decode = function() {
|
this.advanceDecodedTime(0)
|
};
|
BaseDecoder.prototype.advanceDecodedTime = function(seconds) {
|
if (this.collectTimestamps) {
|
var newTimestampIndex = -1;
|
var currentIndex = this.bufferGetIndex();
|
for (var i = this.timestampIndex; i < this.timestamps.length; i++) {
|
if (this.timestamps[i].index > currentIndex) {
|
break
|
}
|
newTimestampIndex = i
|
}
|
if (newTimestampIndex !== -1 && newTimestampIndex !== this.timestampIndex) {
|
this.timestampIndex = newTimestampIndex;
|
this.decodedTime = this.timestamps[this.timestampIndex].time;
|
return
|
}
|
}
|
this.decodedTime += seconds
|
};
|
BaseDecoder.prototype.getCurrentTime = function() {
|
return this.decodedTime
|
};
|
return BaseDecoder
|
} ();
|
JSMpeg.Decoder.MPEG1Video = function() {
|
"use strict";
|
var MPEG1 = function(options) {
|
JSMpeg.Decoder.Base.call(this, options);
|
this.onDecodeCallback = options.onVideoDecode;
|
var bufferSize = options.videoBufferSize || 512 * 1024;
|
var bufferMode = options.streaming ? JSMpeg.BitBuffer.MODE.EVICT: JSMpeg.BitBuffer.MODE.EXPAND;
|
this.bits = new JSMpeg.BitBuffer(bufferSize, bufferMode);
|
this.customIntraQuantMatrix = new Uint8Array(64);
|
this.customNonIntraQuantMatrix = new Uint8Array(64);
|
this.blockData = new Int32Array(64);
|
this.currentFrame = 0;
|
this.decodeFirstFrame = options.decodeFirstFrame !== false
|
};
|
MPEG1.prototype = Object.create(JSMpeg.Decoder.Base.prototype);
|
MPEG1.prototype.constructor = MPEG1;
|
MPEG1.prototype.write = function(pts, buffers) {
|
JSMpeg.Decoder.Base.prototype.write.call(this, pts, buffers);
|
if (!this.hasSequenceHeader) {
|
if (this.bits.findStartCode(MPEG1.START.SEQUENCE) === -1) {
|
return false
|
}
|
this.decodeSequenceHeader();
|
if (this.decodeFirstFrame) {
|
this.decode()
|
}
|
}
|
};
|
MPEG1.prototype.decode = function() {
|
var startTime = JSMpeg.Now();
|
if (!this.hasSequenceHeader) {
|
return false
|
}
|
if (this.bits.findStartCode(MPEG1.START.PICTURE) === -1) {
|
var bufferedBytes = this.bits.byteLength - (this.bits.index >> 3);
|
return false
|
}
|
this.decodePicture();
|
this.advanceDecodedTime(1 / this.frameRate);
|
var elapsedTime = JSMpeg.Now() - startTime;
|
if (this.onDecodeCallback) {
|
this.onDecodeCallback(this, elapsedTime)
|
}
|
return true
|
};
|
MPEG1.prototype.readHuffman = function(codeTable) {
|
var state = 0;
|
do {
|
state = codeTable[state + this.bits.read(1)]
|
} while ( state >= 0 && codeTable [ state ] !== 0);
|
return codeTable[state + 2]
|
};
|
MPEG1.prototype.frameRate = 30;
|
MPEG1.prototype.decodeSequenceHeader = function() {
|
var newWidth = this.bits.read(12),
|
newHeight = this.bits.read(12);
|
this.bits.skip(4);
|
this.frameRate = MPEG1.PICTURE_RATE[this.bits.read(4)];
|
this.bits.skip(18 + 1 + 10 + 1);
|
if (newWidth !== this.width || newHeight !== this.height) {
|
this.width = newWidth;
|
this.height = newHeight;
|
this.initBuffers();
|
if (this.destination) {
|
this.destination.resize(newWidth, newHeight)
|
}
|
}
|
if (this.bits.read(1)) {
|
for (var i = 0; i < 64; i++) {
|
this.customIntraQuantMatrix[MPEG1.ZIG_ZAG[i]] = this.bits.read(8)
|
}
|
this.intraQuantMatrix = this.customIntraQuantMatrix
|
}
|
if (this.bits.read(1)) {
|
for (var i = 0; i < 64; i++) {
|
var idx = MPEG1.ZIG_ZAG[i];
|
this.customNonIntraQuantMatrix[idx] = this.bits.read(8)
|
}
|
this.nonIntraQuantMatrix = this.customNonIntraQuantMatrix
|
}
|
this.hasSequenceHeader = true
|
};
|
MPEG1.prototype.initBuffers = function() {
|
this.intraQuantMatrix = MPEG1.DEFAULT_INTRA_QUANT_MATRIX;
|
this.nonIntraQuantMatrix = MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX;
|
this.mbWidth = this.width + 15 >> 4;
|
this.mbHeight = this.height + 15 >> 4;
|
this.mbSize = this.mbWidth * this.mbHeight;
|
this.codedWidth = this.mbWidth << 4;
|
this.codedHeight = this.mbHeight << 4;
|
this.codedSize = this.codedWidth * this.codedHeight;
|
this.halfWidth = this.mbWidth << 3;
|
this.halfHeight = this.mbHeight << 3;
|
this.currentY = new Uint8ClampedArray(this.codedSize);
|
this.currentY32 = new Uint32Array(this.currentY.buffer);
|
this.currentCr = new Uint8ClampedArray(this.codedSize >> 2);
|
this.currentCr32 = new Uint32Array(this.currentCr.buffer);
|
this.currentCb = new Uint8ClampedArray(this.codedSize >> 2);
|
this.currentCb32 = new Uint32Array(this.currentCb.buffer);
|
this.forwardY = new Uint8ClampedArray(this.codedSize);
|
this.forwardY32 = new Uint32Array(this.forwardY.buffer);
|
this.forwardCr = new Uint8ClampedArray(this.codedSize >> 2);
|
this.forwardCr32 = new Uint32Array(this.forwardCr.buffer);
|
this.forwardCb = new Uint8ClampedArray(this.codedSize >> 2);
|
this.forwardCb32 = new Uint32Array(this.forwardCb.buffer)
|
};
|
MPEG1.prototype.currentY = null;
|
MPEG1.prototype.currentCr = null;
|
MPEG1.prototype.currentCb = null;
|
MPEG1.prototype.pictureType = 0;
|
MPEG1.prototype.forwardY = null;
|
MPEG1.prototype.forwardCr = null;
|
MPEG1.prototype.forwardCb = null;
|
MPEG1.prototype.fullPelForward = false;
|
MPEG1.prototype.forwardFCode = 0;
|
MPEG1.prototype.forwardRSize = 0;
|
MPEG1.prototype.forwardF = 0;
|
MPEG1.prototype.decodePicture = function(skipOutput) {
|
this.currentFrame++;
|
this.bits.skip(10);
|
this.pictureType = this.bits.read(3);
|
this.bits.skip(16);
|
if (this.pictureType <= 0 || this.pictureType >= MPEG1.PICTURE_TYPE.B) {
|
return
|
}
|
if (this.pictureType === MPEG1.PICTURE_TYPE.PREDICTIVE) {
|
this.fullPelForward = this.bits.read(1);
|
this.forwardFCode = this.bits.read(3);
|
if (this.forwardFCode === 0) {
|
return
|
}
|
this.forwardRSize = this.forwardFCode - 1;
|
this.forwardF = 1 << this.forwardRSize
|
}
|
var code = 0;
|
do {
|
code = this.bits.findNextStartCode()
|
} while ( code === MPEG1 . START . EXTENSION || code === MPEG1 . START . USER_DATA );
|
while (code >= MPEG1.START.SLICE_FIRST && code <= MPEG1.START.SLICE_LAST) {
|
this.decodeSlice(code & 255);
|
code = this.bits.findNextStartCode()
|
}
|
if (code !== -1) {
|
this.bits.rewind(32)
|
}
|
if (this.destination) {
|
this.destination.render(this.currentY, this.currentCr, this.currentCb, true)
|
}
|
if (this.pictureType === MPEG1.PICTURE_TYPE.INTRA || this.pictureType === MPEG1.PICTURE_TYPE.PREDICTIVE) {
|
var tmpY = this.forwardY,
|
tmpY32 = this.forwardY32,
|
tmpCr = this.forwardCr,
|
tmpCr32 = this.forwardCr32,
|
tmpCb = this.forwardCb,
|
tmpCb32 = this.forwardCb32;
|
this.forwardY = this.currentY;
|
this.forwardY32 = this.currentY32;
|
this.forwardCr = this.currentCr;
|
this.forwardCr32 = this.currentCr32;
|
this.forwardCb = this.currentCb;
|
this.forwardCb32 = this.currentCb32;
|
this.currentY = tmpY;
|
this.currentY32 = tmpY32;
|
this.currentCr = tmpCr;
|
this.currentCr32 = tmpCr32;
|
this.currentCb = tmpCb;
|
this.currentCb32 = tmpCb32
|
}
|
};
|
MPEG1.prototype.quantizerScale = 0;
|
MPEG1.prototype.sliceBegin = false;
|
MPEG1.prototype.decodeSlice = function(slice) {
|
this.sliceBegin = true;
|
this.macroblockAddress = (slice - 1) * this.mbWidth - 1;
|
this.motionFwH = this.motionFwHPrev = 0;
|
this.motionFwV = this.motionFwVPrev = 0;
|
this.dcPredictorY = 128;
|
this.dcPredictorCr = 128;
|
this.dcPredictorCb = 128;
|
this.quantizerScale = this.bits.read(5);
|
while (this.bits.read(1)) {
|
this.bits.skip(8)
|
}
|
do {
|
this.decodeMacroblock()
|
} while (! this . bits . nextBytesAreStartCode ())
|
};
|
MPEG1.prototype.macroblockAddress = 0;
|
MPEG1.prototype.mbRow = 0;
|
MPEG1.prototype.mbCol = 0;
|
MPEG1.prototype.macroblockType = 0;
|
MPEG1.prototype.macroblockIntra = false;
|
MPEG1.prototype.macroblockMotFw = false;
|
MPEG1.prototype.motionFwH = 0;
|
MPEG1.prototype.motionFwV = 0;
|
MPEG1.prototype.motionFwHPrev = 0;
|
MPEG1.prototype.motionFwVPrev = 0;
|
MPEG1.prototype.decodeMacroblock = function() {
|
var increment = 0,
|
t = this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT);
|
while (t === 34) {
|
t = this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)
|
}
|
while (t === 35) {
|
increment += 33;
|
|
t = this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)
|
}
|
increment += t;
|
if (this.sliceBegin) {
|
this.sliceBegin = false;
|
this.macroblockAddress += increment
|
} else {
|
if (this.macroblockAddress + increment >= this.mbSize) {
|
return
|
}
|
if (increment > 1) {
|
this.dcPredictorY = 128;
|
this.dcPredictorCr = 128;
|
this.dcPredictorCb = 128;
|
if (this.pictureType === MPEG1.PICTURE_TYPE.PREDICTIVE) {
|
this.motionFwH = this.motionFwHPrev = 0;
|
this.motionFwV = this.motionFwVPrev = 0
|
}
|
}
|
while (increment > 1) {
|
this.macroblockAddress++;
|
this.mbRow = this.macroblockAddress / this.mbWidth | 0;
|
this.mbCol = this.macroblockAddress % this.mbWidth;
|
this.copyMacroblock(this.motionFwH, this.motionFwV, this.forwardY, this.forwardCr, this.forwardCb);
|
increment--
|
}
|
this.macroblockAddress++
|
}
|
this.mbRow = this.macroblockAddress / this.mbWidth | 0;
|
this.mbCol = this.macroblockAddress % this.mbWidth;
|
var mbTable = MPEG1.MACROBLOCK_TYPE[this.pictureType];
|
this.macroblockType = this.readHuffman(mbTable);
|
this.macroblockIntra = this.macroblockType & 1;
|
this.macroblockMotFw = this.macroblockType & 8;
|
if ((this.macroblockType & 16) !== 0) {
|
this.quantizerScale = this.bits.read(5)
|
}
|
if (this.macroblockIntra) {
|
this.motionFwH = this.motionFwHPrev = 0;
|
this.motionFwV = this.motionFwVPrev = 0
|
} else {
|
this.dcPredictorY = 128;
|
this.dcPredictorCr = 128;
|
this.dcPredictorCb = 128;
|
this.decodeMotionVectors();
|
this.copyMacroblock(this.motionFwH, this.motionFwV, this.forwardY, this.forwardCr, this.forwardCb)
|
}
|
var cbp = (this.macroblockType & 2) !== 0 ? this.readHuffman(MPEG1.CODE_BLOCK_PATTERN) : this.macroblockIntra ? 63 : 0;
|
for (var block = 0,
|
mask = 32; block < 6; block++) {
|
if ((cbp & mask) !== 0) {
|
this.decodeBlock(block)
|
}
|
mask >>= 1
|
}
|
};
|
MPEG1.prototype.decodeMotionVectors = function() {
|
var code, d, r = 0;
|
if (this.macroblockMotFw) {
|
code = this.readHuffman(MPEG1.MOTION);
|
if (code !== 0 && this.forwardF !== 1) {
|
r = this.bits.read(this.forwardRSize);
|
d = (Math.abs(code) - 1 << this.forwardRSize) + r + 1;
|
if (code < 0) {
|
d = -d
|
}
|
} else {
|
d = code
|
}
|
this.motionFwHPrev += d;
|
if (this.motionFwHPrev > (this.forwardF << 4) - 1) {
|
this.motionFwHPrev -= this.forwardF << 5
|
} else if (this.motionFwHPrev < -this.forwardF << 4) {
|
this.motionFwHPrev += this.forwardF << 5
|
}
|
this.motionFwH = this.motionFwHPrev;
|
if (this.fullPelForward) {
|
this.motionFwH <<= 1
|
}
|
code = this.readHuffman(MPEG1.MOTION);
|
if (code !== 0 && this.forwardF !== 1) {
|
r = this.bits.read(this.forwardRSize);
|
d = (Math.abs(code) - 1 << this.forwardRSize) + r + 1;
|
if (code < 0) {
|
d = -d
|
}
|
} else {
|
d = code
|
}
|
this.motionFwVPrev += d;
|
if (this.motionFwVPrev > (this.forwardF << 4) - 1) {
|
this.motionFwVPrev -= this.forwardF << 5
|
} else if (this.motionFwVPrev < -this.forwardF << 4) {
|
this.motionFwVPrev += this.forwardF << 5
|
}
|
this.motionFwV = this.motionFwVPrev;
|
if (this.fullPelForward) {
|
this.motionFwV <<= 1
|
}
|
} else if (this.pictureType === MPEG1.PICTURE_TYPE.PREDICTIVE) {
|
this.motionFwH = this.motionFwHPrev = 0;
|
this.motionFwV = this.motionFwVPrev = 0
|
}
|
};
|
MPEG1.prototype.copyMacroblock = function(motionH, motionV, sY, sCr, sCb) {
|
var width, scan, H, V, oddH, oddV, src, dest, last;
|
var dY = this.currentY32,
|
dCb = this.currentCb32,
|
dCr = this.currentCr32;
|
width = this.codedWidth;
|
scan = width - 16;
|
H = motionH >> 1;
|
V = motionV >> 1;
|
oddH = (motionH & 1) === 1;
|
oddV = (motionV & 1) === 1;
|
src = ((this.mbRow << 4) + V) * width + (this.mbCol << 4) + H;
|
dest = this.mbRow * width + this.mbCol << 2;
|
last = dest + (width << 2);
|
var x, y1, y2, y;
|
if (oddH) {
|
if (oddV) {
|
while (dest < last) {
|
y1 = sY[src] + sY[src + width];
|
src++;
|
for (x = 0; x < 4; x++) {
|
y2 = sY[src] + sY[src + width];
|
src++;
|
y = y1 + y2 + 2 >> 2 & 255;
|
y1 = sY[src] + sY[src + width];
|
src++;
|
y |= y1 + y2 + 2 << 6 & 65280;
|
y2 = sY[src] + sY[src + width];
|
src++;
|
y |= y1 + y2 + 2 << 14 & 16711680;
|
y1 = sY[src] + sY[src + width];
|
src++;
|
y |= y1 + y2 + 2 << 22 & 4278190080;
|
dY[dest++] = y
|
}
|
dest += scan >> 2;
|
src += scan - 1
|
}
|
} else {
|
while (dest < last) {
|
y1 = sY[src++];
|
for (x = 0; x < 4; x++) {
|
y2 = sY[src++];
|
y = y1 + y2 + 1 >> 1 & 255;
|
y1 = sY[src++];
|
y |= y1 + y2 + 1 << 7 & 65280;
|
y2 = sY[src++];
|
y |= y1 + y2 + 1 << 15 & 16711680;
|
y1 = sY[src++];
|
y |= y1 + y2 + 1 << 23 & 4278190080;
|
dY[dest++] = y
|
}
|
dest += scan >> 2;
|
src += scan - 1
|
}
|
}
|
} else {
|
if (oddV) {
|
while (dest < last) {
|
for (x = 0; x < 4; x++) {
|
y = sY[src] + sY[src + width] + 1 >> 1 & 255;
|
src++;
|
y |= sY[src] + sY[src + width] + 1 << 7 & 65280;
|
src++;
|
y |= sY[src] + sY[src + width] + 1 << 15 & 16711680;
|
src++;
|
y |= sY[src] + sY[src + width] + 1 << 23 & 4278190080;
|
src++;
|
dY[dest++] = y
|
}
|
dest += scan >> 2;
|
src += scan
|
}
|
} else {
|
while (dest < last) {
|
for (x = 0; x < 4; x++) {
|
y = sY[src];
|
src++;
|
y |= sY[src] << 8;
|
src++;
|
y |= sY[src] << 16;
|
src++;
|
y |= sY[src] << 24;
|
src++;
|
dY[dest++] = y
|
}
|
dest += scan >> 2;
|
src += scan
|
}
|
}
|
}
|
width = this.halfWidth;
|
scan = width - 8;
|
H = motionH / 2 >> 1;
|
V = motionV / 2 >> 1;
|
oddH = (motionH / 2 & 1) === 1;
|
oddV = (motionV / 2 & 1) === 1;
|
src = ((this.mbRow << 3) + V) * width + (this.mbCol << 3) + H;
|
dest = this.mbRow * width + this.mbCol << 1;
|
last = dest + (width << 1);
|
var cr1, cr2, cr, cb1, cb2, cb;
|
if (oddH) {
|
if (oddV) {
|
while (dest < last) {
|
cr1 = sCr[src] + sCr[src + width];
|
cb1 = sCb[src] + sCb[src + width];
|
src++;
|
for (x = 0; x < 2; x++) {
|
cr2 = sCr[src] + sCr[src + width];
|
cb2 = sCb[src] + sCb[src + width];
|
src++;
|
cr = cr1 + cr2 + 2 >> 2 & 255;
|
cb = cb1 + cb2 + 2 >> 2 & 255;
|
cr1 = sCr[src] + sCr[src + width];
|
cb1 = sCb[src] + sCb[src + width];
|
src++;
|
cr |= cr1 + cr2 + 2 << 6 & 65280;
|
cb |= cb1 + cb2 + 2 << 6 & 65280;
|
cr2 = sCr[src] + sCr[src + width];
|
cb2 = sCb[src] + sCb[src + width];
|
src++;
|
cr |= cr1 + cr2 + 2 << 14 & 16711680;
|
cb |= cb1 + cb2 + 2 << 14 & 16711680;
|
cr1 = sCr[src] + sCr[src + width];
|
cb1 = sCb[src] + sCb[src + width];
|
src++;
|
cr |= cr1 + cr2 + 2 << 22 & 4278190080;
|
cb |= cb1 + cb2 + 2 << 22 & 4278190080;
|
dCr[dest] = cr;
|
dCb[dest] = cb;
|
dest++
|
}
|
dest += scan >> 2;
|
src += scan - 1
|
}
|
} else {
|
while (dest < last) {
|
cr1 = sCr[src];
|
cb1 = sCb[src];
|
src++;
|
for (x = 0; x < 2; x++) {
|
cr2 = sCr[src];
|
cb2 = sCb[src++];
|
cr = cr1 + cr2 + 1 >> 1 & 255;
|
cb = cb1 + cb2 + 1 >> 1 & 255;
|
cr1 = sCr[src];
|
cb1 = sCb[src++];
|
cr |= cr1 + cr2 + 1 << 7 & 65280;
|
cb |= cb1 + cb2 + 1 << 7 & 65280;
|
cr2 = sCr[src];
|
cb2 = sCb[src++];
|
cr |= cr1 + cr2 + 1 << 15 & 16711680;
|
cb |= cb1 + cb2 + 1 << 15 & 16711680;
|
cr1 = sCr[src];
|
cb1 = sCb[src++];
|
cr |= cr1 + cr2 + 1 << 23 & 4278190080;
|
cb |= cb1 + cb2 + 1 << 23 & 4278190080;
|
dCr[dest] = cr;
|
dCb[dest] = cb;
|
dest++
|
}
|
dest += scan >> 2;
|
src += scan - 1
|
}
|
}
|
} else {
|
if (oddV) {
|
while (dest < last) {
|
for (x = 0; x < 2; x++) {
|
cr = sCr[src] + sCr[src + width] + 1 >> 1 & 255;
|
cb = sCb[src] + sCb[src + width] + 1 >> 1 & 255;
|
src++;
|
cr |= sCr[src] + sCr[src + width] + 1 << 7 & 65280;
|
cb |= sCb[src] + sCb[src + width] + 1 << 7 & 65280;
|
src++;
|
cr |= sCr[src] + sCr[src + width] + 1 << 15 & 16711680;
|
cb |= sCb[src] + sCb[src + width] + 1 << 15 & 16711680;
|
src++;
|
cr |= sCr[src] + sCr[src + width] + 1 << 23 & 4278190080;
|
cb |= sCb[src] + sCb[src + width] + 1 << 23 & 4278190080;
|
src++;
|
dCr[dest] = cr;
|
dCb[dest] = cb;
|
dest++
|
}
|
dest += scan >> 2;
|
src += scan
|
}
|
} else {
|
while (dest < last) {
|
for (x = 0; x < 2; x++) {
|
cr = sCr[src];
|
cb = sCb[src];
|
src++;
|
cr |= sCr[src] << 8;
|
cb |= sCb[src] << 8;
|
src++;
|
cr |= sCr[src] << 16;
|
cb |= sCb[src] << 16;
|
src++;
|
cr |= sCr[src] << 24;
|
cb |= sCb[src] << 24;
|
src++;
|
dCr[dest] = cr;
|
dCb[dest] = cb;
|
dest++
|
}
|
dest += scan >> 2;
|
src += scan
|
}
|
}
|
}
|
};
|
MPEG1.prototype.dcPredictorY = 0;
|
MPEG1.prototype.dcPredictorCr = 0;
|
MPEG1.prototype.dcPredictorCb = 0;
|
MPEG1.prototype.blockData = null;
|
MPEG1.prototype.decodeBlock = function(block) {
|
var n = 0,
|
quantMatrix;
|
if (this.macroblockIntra) {
|
var predictor, dctSize;
|
if (block < 4) {
|
predictor = this.dcPredictorY;
|
dctSize = this.readHuffman(MPEG1.DCT_DC_SIZE_LUMINANCE)
|
} else {
|
predictor = block === 4 ? this.dcPredictorCr: this.dcPredictorCb;
|
dctSize = this.readHuffman(MPEG1.DCT_DC_SIZE_CHROMINANCE)
|
}
|
if (dctSize > 0) {
|
var differential = this.bits.read(dctSize);
|
if ((differential & 1 << dctSize - 1) !== 0) {
|
this.blockData[0] = predictor + differential
|
} else {
|
this.blockData[0] = predictor + ( - 1 << dctSize | differential + 1)
|
}
|
} else {
|
this.blockData[0] = predictor
|
}
|
if (block < 4) {
|
this.dcPredictorY = this.blockData[0]
|
} else if (block === 4) {
|
this.dcPredictorCr = this.blockData[0]
|
} else {
|
this.dcPredictorCb = this.blockData[0]
|
}
|
this.blockData[0] <<= 3 + 5;
|
quantMatrix = this.intraQuantMatrix;
|
n = 1
|
} else {
|
quantMatrix = this.nonIntraQuantMatrix
|
}
|
var level = 0;
|
while (true) {
|
var run = 0,
|
coeff = this.readHuffman(MPEG1.DCT_COEFF);
|
if (coeff === 1 && n > 0 && this.bits.read(1) === 0) {
|
break
|
}
|
if (coeff === 65535) {
|
run = this.bits.read(6);
|
level = this.bits.read(8);
|
if (level === 0) {
|
level = this.bits.read(8)
|
} else if (level === 128) {
|
level = this.bits.read(8) - 256
|
} else if (level > 128) {
|
level = level - 256
|
}
|
} else {
|
run = coeff >> 8;
|
level = coeff & 255;
|
if (this.bits.read(1)) {
|
level = -level
|
}
|
}
|
n += run;
|
var dezigZagged = MPEG1.ZIG_ZAG[n];
|
n++;
|
level <<= 1;
|
if (!this.macroblockIntra) {
|
level += level < 0 ? -1 : 1
|
}
|
level = level * this.quantizerScale * quantMatrix[dezigZagged] >> 4;
|
if ((level & 1) === 0) {
|
level -= level > 0 ? 1 : -1
|
}
|
if (level > 2047) {
|
level = 2047
|
} else if (level < -2048) {
|
level = -2048
|
}
|
this.blockData[dezigZagged] = level * MPEG1.PREMULTIPLIER_MATRIX[dezigZagged]
|
}
|
var destArray, destIndex, scan;
|
if (block < 4) {
|
destArray = this.currentY;
|
scan = this.codedWidth - 8;
|
destIndex = this.mbRow * this.codedWidth + this.mbCol << 4;
|
if ((block & 1) !== 0) {
|
destIndex += 8
|
}
|
if ((block & 2) !== 0) {
|
destIndex += this.codedWidth << 3
|
}
|
} else {
|
destArray = block === 4 ? this.currentCb: this.currentCr;
|
scan = (this.codedWidth >> 1) - 8;
|
destIndex = (this.mbRow * this.codedWidth << 2) + (this.mbCol << 3)
|
}
|
if (this.macroblockIntra) {
|
if (n === 1) {
|
MPEG1.CopyValueToDestination(this.blockData[0] + 128 >> 8, destArray, destIndex, scan);
|
this.blockData[0] = 0
|
} else {
|
MPEG1.IDCT(this.blockData);
|
MPEG1.CopyBlockToDestination(this.blockData, destArray, destIndex, scan);
|
JSMpeg.Fill(this.blockData, 0)
|
}
|
} else {
|
if (n === 1) {
|
MPEG1.AddValueToDestination(this.blockData[0] + 128 >> 8, destArray, destIndex, scan);
|
this.blockData[0] = 0
|
} else {
|
MPEG1.IDCT(this.blockData);
|
MPEG1.AddBlockToDestination(this.blockData, destArray, destIndex, scan);
|
JSMpeg.Fill(this.blockData, 0)
|
}
|
}
|
n = 0
|
};
|
MPEG1.CopyBlockToDestination = function(block, dest, index, scan) {
|
for (var n = 0; n < 64; n += 8, index += scan + 8) {
|
dest[index + 0] = block[n + 0];
|
dest[index + 1] = block[n + 1];
|
dest[index + 2] = block[n + 2];
|
dest[index + 3] = block[n + 3];
|
dest[index + 4] = block[n + 4];
|
dest[index + 5] = block[n + 5];
|
dest[index + 6] = block[n + 6];
|
dest[index + 7] = block[n + 7]
|
}
|
};
|
MPEG1.AddBlockToDestination = function(block, dest, index, scan) {
|
for (var n = 0; n < 64; n += 8, index += scan + 8) {
|
dest[index + 0] += block[n + 0];
|
dest[index + 1] += block[n + 1];
|
dest[index + 2] += block[n + 2];
|
dest[index + 3] += block[n + 3];
|
dest[index + 4] += block[n + 4];
|
dest[index + 5] += block[n + 5];
|
dest[index + 6] += block[n + 6];
|
dest[index + 7] += block[n + 7]
|
}
|
};
|
MPEG1.CopyValueToDestination = function(value, dest, index, scan) {
|
for (var n = 0; n < 64; n += 8, index += scan + 8) {
|
dest[index + 0] = value;
|
dest[index + 1] = value;
|
dest[index + 2] = value;
|
dest[index + 3] = value;
|
dest[index + 4] = value;
|
dest[index + 5] = value;
|
dest[index + 6] = value;
|
dest[index + 7] = value
|
}
|
};
|
MPEG1.AddValueToDestination = function(value, dest, index, scan) {
|
for (var n = 0; n < 64; n += 8, index += scan + 8) {
|
dest[index + 0] += value;
|
dest[index + 1] += value;
|
dest[index + 2] += value;
|
dest[index + 3] += value;
|
dest[index + 4] += value;
|
dest[index + 5] += value;
|
dest[index + 6] += value;
|
dest[index + 7] += value
|
}
|
};
|
MPEG1.IDCT = function(block) {
|
var b1, b3, b4, b6, b7, tmp1, tmp2, m0, x0, x1, x2, x3, x4, y3, y4, y5, y6, y7;
|
for (var i = 0; i < 8; ++i) {
|
b1 = block[4 * 8 + i];
|
b3 = block[2 * 8 + i] + block[6 * 8 + i];
|
b4 = block[5 * 8 + i] - block[3 * 8 + i];
|
tmp1 = block[1 * 8 + i] + block[7 * 8 + i];
|
tmp2 = block[3 * 8 + i] + block[5 * 8 + i];
|
b6 = block[1 * 8 + i] - block[7 * 8 + i];
|
b7 = tmp1 + tmp2;
|
m0 = block[0 * 8 + i];
|
x4 = (b6 * 473 - b4 * 196 + 128 >> 8) - b7;
|
x0 = x4 - ((tmp1 - tmp2) * 362 + 128 >> 8);
|
x1 = m0 - b1;
|
x2 = ((block[2 * 8 + i] - block[6 * 8 + i]) * 362 + 128 >> 8) - b3;
|
x3 = m0 + b1;
|
y3 = x1 + x2;
|
y4 = x3 + b3;
|
y5 = x1 - x2;
|
y6 = x3 - b3;
|
y7 = -x0 - (b4 * 473 + b6 * 196 + 128 >> 8);
|
block[0 * 8 + i] = b7 + y4;
|
block[1 * 8 + i] = x4 + y3;
|
block[2 * 8 + i] = y5 - x0;
|
block[3 * 8 + i] = y6 - y7;
|
block[4 * 8 + i] = y6 + y7;
|
block[5 * 8 + i] = x0 + y5;
|
block[6 * 8 + i] = y3 - x4;
|
block[7 * 8 + i] = y4 - b7
|
}
|
for (var i = 0; i < 64; i += 8) {
|
b1 = block[4 + i];
|
b3 = block[2 + i] + block[6 + i];
|
b4 = block[5 + i] - block[3 + i];
|
tmp1 = block[1 + i] + block[7 + i];
|
tmp2 = block[3 + i] + block[5 + i];
|
b6 = block[1 + i] - block[7 + i];
|
b7 = tmp1 + tmp2;
|
m0 = block[0 + i];
|
x4 = (b6 * 473 - b4 * 196 + 128 >> 8) - b7;
|
x0 = x4 - ((tmp1 - tmp2) * 362 + 128 >> 8);
|
x1 = m0 - b1;
|
x2 = ((block[2 + i] - block[6 + i]) * 362 + 128 >> 8) - b3;
|
x3 = m0 + b1;
|
y3 = x1 + x2;
|
y4 = x3 + b3;
|
y5 = x1 - x2;
|
y6 = x3 - b3;
|
y7 = -x0 - (b4 * 473 + b6 * 196 + 128 >> 8);
|
block[0 + i] = b7 + y4 + 128 >> 8;
|
block[1 + i] = x4 + y3 + 128 >> 8;
|
block[2 + i] = y5 - x0 + 128 >> 8;
|
block[3 + i] = y6 - y7 + 128 >> 8;
|
block[4 + i] = y6 + y7 + 128 >> 8;
|
block[5 + i] = x0 + y5 + 128 >> 8;
|
block[6 + i] = y3 - x4 + 128 >> 8;
|
block[7 + i] = y4 - b7 + 128 >> 8
|
}
|
};
|
MPEG1.PICTURE_RATE = [0, 23.976, 24, 25, 29.97, 30, 50, 59.94, 60, 0, 0, 0, 0, 0, 0, 0];
|
MPEG1.ZIG_ZAG = new Uint8Array([0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63]);
|
MPEG1.DEFAULT_INTRA_QUANT_MATRIX = new Uint8Array([8, 16, 19, 22, 26, 27, 29, 34, 16, 16, 22, 24, 27, 29, 34, 37, 19, 22, 26, 27, 29, 34, 34, 38, 22, 22, 26, 27, 29, 34, 37, 40, 22, 26, 27, 29, 32, 35, 40, 48, 26, 27, 29, 32, 35, 40, 48, 58, 26, 27, 29, 34, 38, 46, 56, 69, 27, 29, 35, 38, 46, 56, 69, 83]);
|
MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX = new Uint8Array([16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16]);
|
MPEG1.PREMULTIPLIER_MATRIX = new Uint8Array([32, 44, 42, 38, 32, 25, 17, 9, 44, 62, 58, 52, 44, 35, 24, 12, 42, 58, 55, 49, 42, 33, 23, 12, 38, 52, 49, 44, 38, 30, 20, 10, 32, 44, 42, 38, 32, 25, 17, 9, 25, 35, 33, 30, 25, 20, 14, 7, 17, 24, 23, 20, 17, 14, 9, 5, 9, 12, 12, 10, 9, 7, 5, 2]);
|
MPEG1.MACROBLOCK_ADDRESS_INCREMENT = new Int16Array([1 * 3, 2 * 3, 0, 3 * 3, 4 * 3, 0, 0, 0, 1, 5 * 3, 6 * 3, 0, 7 * 3, 8 * 3, 0, 9 * 3, 10 * 3, 0, 11 * 3, 12 * 3, 0, 0, 0, 3, 0, 0, 2, 13 * 3, 14 * 3, 0, 15 * 3, 16 * 3, 0, 0, 0, 5, 0, 0, 4, 17 * 3, 18 * 3, 0, 19 * 3, 20 * 3, 0, 0, 0, 7, 0, 0, 6, 21 * 3, 22 * 3, 0, 23 * 3, 24 * 3, 0, 25 * 3, 26 * 3, 0, 27 * 3, 28 * 3, 0, -1, 29 * 3, 0, -1, 30 * 3, 0, 31 * 3, 32 * 3, 0, 33 * 3, 34 * 3, 0, 35 * 3, 36 * 3, 0, 37 * 3, 38 * 3, 0, 0, 0, 9, 0, 0, 8, 39 * 3, 40 * 3, 0, 41 * 3, 42 * 3, 0, 43 * 3, 44 * 3, 0, 45 * 3, 46 * 3, 0, 0, 0, 15, 0, 0, 14, 0, 0, 13, 0, 0, 12, 0, 0, 11, 0, 0, 10, 47 * 3, -1, 0, -1, 48 * 3, 0, 49 * 3, 50 * 3, 0, 51 * 3, 52 * 3, 0, 53 * 3, 54 * 3, 0, 55 * 3, 56 * 3, 0, 57 * 3, 58 * 3, 0, 59 * 3, 60 * 3, 0, 61 * 3, -1, 0, -1, 62 * 3, 0, 63 * 3, 64 * 3, 0, 65 * 3, 66 * 3, 0, 67 * 3, 68 * 3, 0, 69 * 3, 70 * 3, 0, 71 * 3, 72 * 3, 0, 73 * 3, 74 * 3, 0, 0, 0, 21, 0, 0, 20, 0, 0, 19, 0, 0, 18, 0, 0, 17, 0, 0, 16, 0, 0, 35, 0, 0, 34, 0, 0, 33, 0, 0, 32, 0, 0, 31, 0, 0, 30, 0, 0, 29, 0, 0, 28, 0, 0, 27, 0, 0, 26, 0, 0, 25, 0, 0, 24, 0, 0, 23, 0, 0, 22]);
|
MPEG1.MACROBLOCK_TYPE_INTRA = new Int8Array([1 * 3, 2 * 3, 0, -1, 3 * 3, 0, 0, 0, 1, 0, 0, 17]);
|
MPEG1.MACROBLOCK_TYPE_PREDICTIVE = new Int8Array([1 * 3, 2 * 3, 0, 3 * 3, 4 * 3, 0, 0, 0, 10, 5 * 3, 6 * 3, 0, 0, 0, 2, 7 * 3, 8 * 3, 0, 0, 0, 8, 9 * 3, 10 * 3, 0, 11 * 3, 12 * 3, 0, -1, 13 * 3, 0, 0, 0, 18, 0, 0, 26, 0, 0, 1, 0, 0, 17]);
|
MPEG1.MACROBLOCK_TYPE_B = new Int8Array([1 * 3, 2 * 3, 0, 3 * 3, 5 * 3, 0, 4 * 3, 6 * 3, 0, 8 * 3, 7 * 3, 0, 0, 0, 12, 9 * 3, 10 * 3, 0, 0, 0, 14, 13 * 3, 14 * 3, 0, 12 * 3, 11 * 3, 0, 0, 0, 4, 0, 0, 6, 18 * 3, 16 * 3, 0, 15 * 3, 17 * 3, 0, 0, 0, 8, 0, 0, 10, -1, 19 * 3, 0, 0, 0, 1, 20 * 3, 21 * 3, 0, 0, 0, 30, 0, 0, 17, 0, 0, 22, 0, 0, 26]);
|
MPEG1.MACROBLOCK_TYPE = [null, MPEG1.MACROBLOCK_TYPE_INTRA, MPEG1.MACROBLOCK_TYPE_PREDICTIVE, MPEG1.MACROBLOCK_TYPE_B];
|
MPEG1.CODE_BLOCK_PATTERN = new Int16Array([2 * 3, 1 * 3, 0, 3 * 3, 6 * 3, 0, 4 * 3, 5 * 3, 0, 8 * 3, 11 * 3, 0, 12 * 3, 13 * 3, 0, 9 * 3, 7 * 3, 0, 10 * 3, 14 * 3, 0, 20 * 3, 19 * 3, 0, 18 * 3, 16 * 3, 0, 23 * 3, 17 * 3, 0, 27 * 3, 25 * 3, 0, 21 * 3, 28 * 3, 0, 15 * 3, 22 * 3, 0, 24 * 3, 26 * 3, 0, 0, 0, 60, 35 * 3, 40 * 3, 0, 44 * 3, 48 * 3, 0, 38 * 3, 36 * 3, 0, 42 * 3, 47 * 3, 0, 29 * 3, 31 * 3, 0, 39 * 3, 32 * 3, 0, 0, 0, 32, 45 * 3, 46 * 3, 0, 33 * 3, 41 * 3, 0, 43 * 3, 34 * 3, 0, 0, 0, 4, 30 * 3, 37 * 3, 0, 0, 0, 8, 0, 0, 16, 0, 0, 44, 50 * 3, 56 * 3, 0, 0, 0, 28, 0, 0, 52, 0, 0, 62, 61 * 3, 59 * 3, 0, 52 * 3, 60 * 3, 0, 0, 0, 1, 55 * 3, 54 * 3, 0, 0, 0, 61, 0, 0, 56, 57 * 3, 58 * 3, 0, 0, 0, 2, 0, 0, 40, 51 * 3, 62 * 3, 0, 0, 0, 48, 64 * 3, 63 * 3, 0, 49 * 3, 53 * 3, 0, 0, 0, 20, 0, 0, 12, 80 * 3, 83 * 3, 0, 0, 0, 63, 77 * 3, 75 * 3, 0, 65 * 3, 73 * 3, 0, 84 * 3, 66 * 3, 0, 0, 0, 24, 0, 0, 36, 0, 0, 3, 69 * 3, 87 * 3, 0, 81 * 3, 79 * 3, 0, 68 * 3, 71 * 3, 0, 70 * 3, 78 * 3, 0, 67 * 3, 76 * 3, 0, 72 * 3, 74 * 3, 0, 86 * 3, 85 * 3, 0, 88 * 3, 82 * 3, 0, -1, 94 * 3, 0, 95 * 3, 97 * 3, 0, 0, 0, 33, 0, 0, 9, 106 * 3, 110 * 3, 0, 102 * 3, 116 * 3, 0, 0, 0, 5, 0, 0, 10, 93 * 3, 89 * 3, 0, 0, 0, 6, 0, 0, 18, 0, 0, 17, 0, 0, 34, 113 * 3, 119 * 3, 0, 103 * 3, 104 * 3, 0, 90 * 3, 92 * 3, 0, 109 * 3, 107 * 3, 0, 117 * 3, 118 * 3, 0, 101 * 3, 99 * 3, 0, 98 * 3, 96 * 3, 0, 100 * 3, 91 * 3, 0, 114 * 3, 115 * 3, 0, 105 * 3, 108 * 3, 0, 112 * 3, 111 * 3, 0, 121 * 3, 125 * 3, 0, 0, 0, 41, 0, 0, 14, 0, 0, 21, 124 * 3, 122 * 3, 0, 120 * 3, 123 * 3, 0, 0, 0, 11, 0, 0, 19, 0, 0, 7, 0, 0, 35, 0, 0, 13, 0, 0, 50, 0, 0, 49, 0, 0, 58, 0, 0, 37, 0, 0, 25, 0, 0, 45, 0, 0, 57, 0, 0, 26, 0, 0, 29, 0, 0, 38, 0, 0, 53, 0, 0, 23, 0, 0, 43, 0, 0, 46, 0, 0, 42, 0, 0, 22, 0, 0, 54, 0, 0, 51, 0, 0, 15, 0, 0, 30, 0, 0, 39, 0, 0, 47, 0, 0, 55, 0, 0, 27, 0, 0, 59, 0, 0, 31]);
|
MPEG1.MOTION = new Int16Array([1 * 3, 2 * 3, 0, 4 * 3, 3 * 3, 0, 0, 0, 0, 6 * 3, 5 * 3, 0, 8 * 3, 7 * 3, 0, 0, 0, -1, 0, 0, 1, 9 * 3, 10 * 3, 0, 12 * 3, 11 * 3, 0, 0, 0, 2, 0, 0, -2, 14 * 3, 15 * 3, 0, 16 * 3, 13 * 3, 0, 20 * 3, 18 * 3, 0, 0, 0, 3, 0, 0, -3, 17 * 3, 19 * 3, 0, -1, 23 * 3, 0, 27 * 3, 25 * 3, 0, 26 * 3, 21 * 3, 0, 24 * 3, 22 * 3, 0, 32 * 3, 28 * 3, 0, 29 * 3, 31 * 3, 0, -1, 33 * 3, 0, 36 * 3, 35 * 3, 0, 0, 0, -4, 30 * 3, 34 * 3, 0, 0, 0, 4, 0, 0, -7, 0, 0, 5, 37 * 3, 41 * 3, 0, 0, 0, -5, 0, 0, 7, 38 * 3, 40 * 3, 0, 42 * 3, 39 * 3, 0, 0, 0, -6, 0, 0, 6, 51 * 3, 54 * 3, 0, 50 * 3, 49 * 3, 0, 45 * 3, 46 * 3, 0, 52 * 3, 47 * 3, 0, 43 * 3, 53 * 3, 0, 44 * 3, 48 * 3, 0, 0, 0, 10, 0, 0, 9, 0, 0, 8, 0, 0, -8, 57 * 3, 66 * 3, 0, 0, 0, -9, 60 * 3, 64 * 3, 0, 56 * 3, 61 * 3, 0, 55 * 3, 62 * 3, 0, 58 * 3, 63 * 3, 0, 0, 0, -10, 59 * 3, 65 * 3, 0, 0, 0, 12, 0, 0, 16, 0, 0, 13, 0, 0, 14, 0, 0, 11, 0, 0, 15, 0, 0, -16, 0, 0, -12, 0, 0, -14, 0, 0, -15, 0, 0, -11, 0, 0, -13]);
|
MPEG1.DCT_DC_SIZE_LUMINANCE = new Int8Array([2 * 3, 1 * 3, 0, 6 * 3, 5 * 3, 0, 3 * 3, 4 * 3, 0, 0, 0, 1, 0, 0, 2, 9 * 3, 8 * 3, 0, 7 * 3, 10 * 3, 0, 0, 0, 0, 12 * 3, 11 * 3, 0, 0, 0, 4, 0, 0, 3, 13 * 3, 14 * 3, 0, 0, 0, 5, 0, 0, 6, 16 * 3, 15 * 3, 0, 17 * 3, -1, 0, 0, 0, 7, 0, 0, 8]);
|
MPEG1.DCT_DC_SIZE_CHROMINANCE = new Int8Array([2 * 3, 1 * 3, 0, 4 * 3, 3 * 3, 0, 6 * 3, 5 * 3, 0, 8 * 3, 7 * 3, 0, 0, 0, 2, 0, 0, 1, 0, 0, 0, 10 * 3, 9 * 3, 0, 0, 0, 3, 12 * 3, 11 * 3, 0, 0, 0, 4, 14 * 3, 13 * 3, 0, 0, 0, 5, 16 * 3, 15 * 3, 0, 0, 0, 6, 17 * 3, -1, 0, 0, 0, 7, 0, 0, 8]);
|
MPEG1.DCT_COEFF = new Int32Array([1 * 3, 2 * 3, 0, 4 * 3, 3 * 3, 0, 0, 0, 1, 7 * 3, 8 * 3, 0, 6 * 3, 5 * 3, 0, 13 * 3, 9 * 3, 0, 11 * 3, 10 * 3, 0, 14 * 3, 12 * 3, 0, 0, 0, 257, 20 * 3, 22 * 3, 0, 18 * 3, 21 * 3, 0, 16 * 3, 19 * 3, 0, 0, 0, 513, 17 * 3, 15 * 3, 0, 0, 0, 2, 0, 0, 3, 27 * 3, 25 * 3, 0, 29 * 3, 31 * 3, 0, 24 * 3, 26 * 3, 0, 32 * 3, 30 * 3, 0, 0, 0, 1025, 23 * 3, 28 * 3, 0, 0, 0, 769, 0, 0, 258, 0, 0, 1793, 0, 0, 65535, 0, 0, 1537, 37 * 3, 36 * 3, 0, 0, 0, 1281, 35 * 3, 34 * 3, 0, 39 * 3, 38 * 3, 0, 33 * 3, 42 * 3, 0, 40 * 3, 41 * 3, 0, 52 * 3, 50 * 3, 0, 54 * 3, 53 * 3, 0, 48 * 3, 49 * 3, 0, 43 * 3, 45 * 3, 0, 46 * 3, 44 * 3, 0, 0, 0, 2049, 0, 0, 4, 0, 0, 514, 0, 0, 2305, 51 * 3, 47 * 3, 0, 55 * 3, 57 * 3, 0, 60 * 3, 56 * 3, 0, 59 * 3, 58 * 3, 0, 61 * 3, 62 * 3, 0, 0, 0, 2561, 0, 0, 3329, 0, 0, 6, 0, 0, 259, 0, 0, 5, 0, 0, 770, 0, 0, 2817, 0, 0, 3073, 76 * 3, 75 * 3, 0, 67 * 3, 70 * 3, 0, 73 * 3, 71 * 3, 0, 78 * 3, 74 * 3, 0, 72 * 3, 77 * 3, 0, 69 * 3, 64 * 3, 0, 68 * 3, 63 * 3, 0, 66 * 3, 65 * 3, 0, 81 * 3, 87 * 3, 0, 91 * 3, 80 * 3, 0, 82 * 3, 79 * 3, 0, 83 * 3, 86 * 3, 0, 93 * 3, 92 * 3, 0, 84 * 3, 85 * 3, 0, 90 * 3, 94 * 3, 0, 88 * 3, 89 * 3, 0, 0, 0, 515, 0, 0, 260, 0, 0, 7, 0, 0, 1026, 0, 0, 1282, 0, 0, 4097, 0, 0, 3841, 0, 0, 3585, 105 * 3, 107 * 3, 0, 111 * 3, 114 * 3, 0, 104 * 3, 97 * 3, 0, 125 * 3, 119 * 3, 0, 96 * 3, 98 * 3, 0, -1, 123 * 3, 0, 95 * 3, 101 * 3, 0, 106 * 3, 121 * 3, 0, 99 * 3, 102 * 3, 0, 113 * 3, 103 * 3, 0, 112 * 3, 116 * 3, 0, 110 * 3, 100 * 3, 0, 124 * 3, 115 * 3, 0, 117 * 3, 122 * 3, 0, 109 * 3, 118 * 3, 0, 120 * 3, 108 * 3, 0, 127 * 3, 136 * 3, 0, 139 * 3, 140 * 3, 0, 130 * 3, 126 * 3, 0, 145 * 3, 146 * 3, 0, 128 * 3, 129 * 3, 0, 0, 0, 2050, 132 * 3, 134 * 3, 0, 155 * 3, 154 * 3, 0, 0, 0, 8, 137 * 3, 133 * 3, 0, 143 * 3, 144 * 3, 0, 151 * 3, 138 * 3, 0, 142 * 3, 141 * 3, 0, 0, 0, 10, 0, 0, 9, 0, 0, 11, 0, 0, 5377, 0, 0, 1538, 0, 0, 771, 0, 0, 5121, 0, 0, 1794, 0, 0, 4353, 0, 0, 4609, 0, 0, 4865, 148 * 3, 152 * 3, 0, 0, 0, 1027, 153 * 3, 150 * 3, 0, 0, 0, 261, 131 * 3, 135 * 3, 0, 0, 0, 516, 149 * 3, 147 * 3, 0, 172 * 3, 173 * 3, 0, 162 * 3, 158 * 3, 0, 170 * 3, 161 * 3, 0, 168 * 3, 166 * 3, 0, 157 * 3, 179 * 3, 0, 169 * 3, 167 * 3, 0, 174 * 3, 171 * 3, 0, 178 * 3, 177 * 3, 0, 156 * 3, 159 * 3, 0, 164 * 3, 165 * 3, 0, 183 * 3, 182 * 3, 0, 175 * 3, 176 * 3, 0, 0, 0, 263, 0, 0, 2562, 0, 0, 2306, 0, 0, 5633, 0, 0, 5889, 0, 0, 6401, 0, 0, 6145, 0, 0, 1283, 0, 0, 772, 0, 0, 13, 0, 0, 12, 0, 0, 14, 0, 0, 15, 0, 0, 517, 0, 0, 6657, 0, 0, 262, 180 * 3, 181 * 3, 0, 160 * 3, 163 * 3, 0, 196 * 3, 199 * 3, 0, 0, 0, 27, 203 * 3, 185 * 3, 0, 202 * 3, 201 * 3, 0, 0, 0, 19, 0, 0, 22, 197 * 3, 207 * 3, 0, 0, 0, 18, 191 * 3, 192 * 3, 0, 188 * 3, 190 * 3, 0, 0, 0, 20, 184 * 3, 194 * 3, 0, 0, 0, 21, 186 * 3, 193 * 3, 0, 0, 0, 23, 204 * 3, 198 * 3, 0, 0, 0, 25, 0, 0, 24, 200 * 3, 205 * 3, 0, 0, 0, 31, 0, 0, 30, 0, 0, 28, 0, 0, 29, 0, 0, 26, 0, 0, 17, 0, 0, 16, 189 * 3, 206 * 3, 0, 187 * 3, 195 * 3, 0, 218 * 3, 211 * 3, 0, 0, 0, 37, 215 * 3, 216 * 3, 0, 0, 0, 36, 210 * 3, 212 * 3, 0, 0, 0, 34, 213 * 3, 209 * 3, 0, 221 * 3, 222 * 3, 0, 219 * 3, 208 * 3, 0, 217 * 3, 214 * 3, 0, 223 * 3, 220 * 3, 0, 0, 0, 35, 0, 0, 267, 0, 0, 40, 0, 0, 268, 0, 0, 266, 0, 0, 32, 0, 0, 264, 0, 0, 265, 0, 0, 38, 0, 0, 269, 0, 0, 270, 0, 0, 33, 0, 0, 39, 0, 0, 7937, 0, 0, 6913, 0, 0, 7681, 0, 0, 4098, 0, 0, 7425, 0, 0, 7169, 0, 0, 271, 0, 0, 274, 0, 0, 273, 0, 0, 272, 0, 0, 1539, 0, 0, 2818, 0, 0, 3586, 0, 0, 3330, 0, 0, 3074, 0, 0, 3842]);
|
MPEG1.PICTURE_TYPE = {
|
INTRA: 1,
|
PREDICTIVE: 2,
|
B: 3
|
};
|
MPEG1.START = {
|
SEQUENCE: 179,
|
SLICE_FIRST: 1,
|
SLICE_LAST: 175,
|
PICTURE: 0,
|
EXTENSION: 181,
|
USER_DATA: 178
|
};
|
return MPEG1
|
} ();
|
JSMpeg.Decoder.MPEG1VideoWASM = function() {
|
"use strict";
|
var MPEG1WASM = function(options) {
|
JSMpeg.Decoder.Base.call(this, options);
|
this.onDecodeCallback = options.onVideoDecode;
|
this.module = options.wasmModule;
|
this.bufferSize = options.videoBufferSize || 512 * 1024;
|
this.bufferMode = options.streaming ? JSMpeg.BitBuffer.MODE.EVICT: JSMpeg.BitBuffer.MODE.EXPAND;
|
this.decodeFirstFrame = options.decodeFirstFrame !== false;
|
this.hasSequenceHeader = false
|
};
|
MPEG1WASM.prototype = Object.create(JSMpeg.Decoder.Base.prototype);
|
MPEG1WASM.prototype.constructor = MPEG1WASM;
|
MPEG1WASM.prototype.initializeWasmDecoder = function() {
|
if (!this.module.instance) {
|
console.warn("JSMpeg: WASM module not compiled yet");
|
return
|
}
|
this.instance = this.module.instance;
|
this.functions = this.module.instance.exports;
|
this.decoder = this.functions._mpeg1_decoder_create(this.bufferSize, this.bufferMode)
|
};
|
MPEG1WASM.prototype.destroy = function() {
|
if (!this.decoder) {
|
return
|
}
|
this.functions._mpeg1_decoder_destroy(this.decoder)
|
};
|
MPEG1WASM.prototype.bufferGetIndex = function() {
|
if (!this.decoder) {
|
return
|
}
|
return this.functions._mpeg1_decoder_get_index(this.decoder)
|
};
|
MPEG1WASM.prototype.bufferSetIndex = function(index) {
|
if (!this.decoder) {
|
return
|
}
|
this.functions._mpeg1_decoder_set_index(this.decoder, index)
|
};
|
MPEG1WASM.prototype.bufferWrite = function(buffers) {
|
if (!this.decoder) {
|
this.initializeWasmDecoder()
|
}
|
var totalLength = 0;
|
for (var i = 0; i < buffers.length; i++) {
|
totalLength += buffers[i].length
|
}
|
var ptr = this.functions._mpeg1_decoder_get_write_ptr(this.decoder, totalLength);
|
for (var i = 0; i < buffers.length; i++) {
|
this.instance.heapU8.set(buffers[i], ptr);
|
ptr += buffers[i].length
|
}
|
this.functions._mpeg1_decoder_did_write(this.decoder, totalLength);
|
return totalLength
|
};
|
MPEG1WASM.prototype.write = function(pts, buffers) {
|
JSMpeg.Decoder.Base.prototype.write.call(this, pts, buffers);
|
if (!this.hasSequenceHeader && this.functions._mpeg1_decoder_has_sequence_header(this.decoder)) {
|
this.loadSequnceHeader()
|
}
|
};
|
MPEG1WASM.prototype.loadSequnceHeader = function() {
|
this.hasSequenceHeader = true;
|
this.frameRate = this.functions._mpeg1_decoder_get_frame_rate(this.decoder);
|
this.codedSize = this.functions._mpeg1_decoder_get_coded_size(this.decoder);
|
if (this.destination) {
|
var w = this.functions._mpeg1_decoder_get_width(this.decoder);
|
var h = this.functions._mpeg1_decoder_get_height(this.decoder);
|
this.destination.resize(w, h)
|
}
|
if (this.decodeFirstFrame) {
|
this.decode()
|
}
|
};
|
MPEG1WASM.prototype.decode = function() {
|
var startTime = JSMpeg.Now();
|
if (!this.decoder) {
|
return false
|
}
|
var didDecode = this.functions._mpeg1_decoder_decode(this.decoder);
|
if (!didDecode) {
|
return false
|
}
|
if (this.destination) {
|
var ptrY = this.functions._mpeg1_decoder_get_y_ptr(this.decoder),
|
ptrCr = this.functions._mpeg1_decoder_get_cr_ptr(this.decoder),
|
ptrCb = this.functions._mpeg1_decoder_get_cb_ptr(this.decoder);
|
var dy = this.instance.heapU8.subarray(ptrY, ptrY + this.codedSize);
|
var dcr = this.instance.heapU8.subarray(ptrCr, ptrCr + (this.codedSize >> 2));
|
var dcb = this.instance.heapU8.subarray(ptrCb, ptrCb + (this.codedSize >> 2));
|
this.destination.render(dy, dcr, dcb, false)
|
}
|
this.advanceDecodedTime(1 / this.frameRate);
|
var elapsedTime = JSMpeg.Now() - startTime;
|
if (this.onDecodeCallback) {
|
this.onDecodeCallback(this, elapsedTime)
|
}
|
return true
|
};
|
return MPEG1WASM
|
} ();
|
JSMpeg.Decoder.MP2Audio = function() {
|
"use strict";
|
var MP2 = function(options) {
|
JSMpeg.Decoder.Base.call(this, options);
|
this.onDecodeCallback = options.onAudioDecode;
|
var bufferSize = options.audioBufferSize || 128 * 1024;
|
var bufferMode = options.streaming ? JSMpeg.BitBuffer.MODE.EVICT: JSMpeg.BitBuffer.MODE.EXPAND;
|
this.bits = new JSMpeg.BitBuffer(bufferSize, bufferMode);
|
this.left = new Float32Array(1152);
|
this.right = new Float32Array(1152);
|
this.sampleRate = 44100;
|
this.D = new Float32Array(1024);
|
this.D.set(MP2.SYNTHESIS_WINDOW, 0);
|
this.D.set(MP2.SYNTHESIS_WINDOW, 512);
|
this.V = new Float32Array(1024);
|
this.U = new Int32Array(32);
|
this.VPos = 0;
|
this.allocation = [new Array(32), new Array(32)];
|
this.scaleFactorInfo = [new Uint8Array(32), new Uint8Array(32)];
|
this.scaleFactor = [new Array(32), new Array(32)];
|
this.sample = [new Array(32), new Array(32)];
|
for (var j = 0; j < 2; j++) {
|
for (var i = 0; i < 32; i++) {
|
this.scaleFactor[j][i] = [0, 0, 0];
|
this.sample[j][i] = [0, 0, 0]
|
}
|
}
|
};
|
MP2.prototype = Object.create(JSMpeg.Decoder.Base.prototype);
|
MP2.prototype.constructor = MP2;
|
MP2.prototype.decode = function() {
|
var startTime = JSMpeg.Now();
|
var pos = this.bits.index >> 3;
|
if (pos >= this.bits.byteLength) {
|
return false
|
}
|
var decoded = this.decodeFrame(this.left, this.right);
|
this.bits.index = pos + decoded << 3;
|
if (!decoded) {
|
return false
|
}
|
if (this.destination) {
|
this.destination.play(this.sampleRate, this.left, this.right)
|
}
|
this.advanceDecodedTime(this.left.length / this.sampleRate);
|
var elapsedTime = JSMpeg.Now() - startTime;
|
if (this.onDecodeCallback) {
|
this.onDecodeCallback(this, elapsedTime)
|
}
|
return true
|
};
|
MP2.prototype.getCurrentTime = function() {
|
var enqueuedTime = this.destination ? this.destination.enqueuedTime: 0;
|
return this.decodedTime - enqueuedTime
|
};
|
MP2.prototype.decodeFrame = function(left, right) {
|
var sync = this.bits.read(11),
|
version = this.bits.read(2),
|
layer = this.bits.read(2),
|
hasCRC = !this.bits.read(1);
|
if (sync !== MP2.FRAME_SYNC || version !== MP2.VERSION.MPEG_1 || layer !== MP2.LAYER.II) {
|
return 0
|
}
|
var bitrateIndex = this.bits.read(4) - 1;
|
if (bitrateIndex > 13) {
|
return 0
|
}
|
var sampleRateIndex = this.bits.read(2);
|
var sampleRate = MP2.SAMPLE_RATE[sampleRateIndex];
|
if (sampleRateIndex === 3) {
|
return 0
|
}
|
if (version === MP2.VERSION.MPEG_2) {
|
sampleRateIndex += 4;
|
bitrateIndex += 14
|
}
|
var padding = this.bits.read(1),
|
privat = this.bits.read(1),
|
mode = this.bits.read(2);
|
var bound = 0;
|
if (mode === MP2.MODE.JOINT_STEREO) {
|
bound = this.bits.read(2) + 1 << 2
|
} else {
|
this.bits.skip(2);
|
bound = mode === MP2.MODE.MONO ? 0 : 32
|
}
|
this.bits.skip(4);
|
if (hasCRC) {
|
this.bits.skip(16)
|
}
|
var bitrate = MP2.BIT_RATE[bitrateIndex],
|
sampleRate = MP2.SAMPLE_RATE[sampleRateIndex],
|
frameSize = 144e3 * bitrate / sampleRate + padding | 0;
|
var tab3 = 0;
|
var sblimit = 0;
|
if (version === MP2.VERSION.MPEG_2) {
|
tab3 = 2;
|
sblimit = 30
|
} else {
|
var tab1 = mode === MP2.MODE.MONO ? 0 : 1;
|
var tab2 = MP2.QUANT_LUT_STEP_1[tab1][bitrateIndex];
|
tab3 = MP2.QUANT_LUT_STEP_2[tab2][sampleRateIndex];
|
sblimit = tab3 & 63;
|
tab3 >>= 6
|
}
|
if (bound > sblimit) {
|
bound = sblimit
|
}
|
for (var sb = 0; sb < bound; sb++) {
|
this.allocation[0][sb] = this.readAllocation(sb, tab3);
|
this.allocation[1][sb] = this.readAllocation(sb, tab3)
|
}
|
for (var sb = bound; sb < sblimit; sb++) {
|
this.allocation[0][sb] = this.allocation[1][sb] = this.readAllocation(sb, tab3)
|
}
|
var channels = mode === MP2.MODE.MONO ? 1 : 2;
|
for (var sb = 0; sb < sblimit; sb++) {
|
for (ch = 0; ch < channels; ch++) {
|
if (this.allocation[ch][sb]) {
|
this.scaleFactorInfo[ch][sb] = this.bits.read(2)
|
}
|
}
|
if (mode === MP2.MODE.MONO) {
|
this.scaleFactorInfo[1][sb] = this.scaleFactorInfo[0][sb]
|
}
|
}
|
for (var sb = 0; sb < sblimit; sb++) {
|
for (var ch = 0; ch < channels; ch++) {
|
if (this.allocation[ch][sb]) {
|
var sf = this.scaleFactor[ch][sb];
|
switch (this.scaleFactorInfo[ch][sb]) {
|
case 0:
|
sf[0] = this.bits.read(6);
|
sf[1] = this.bits.read(6);
|
sf[2] = this.bits.read(6);
|
break;
|
case 1:
|
sf[0] = sf[1] = this.bits.read(6);
|
sf[2] = this.bits.read(6);
|
break;
|
case 2:
|
sf[0] = sf[1] = sf[2] = this.bits.read(6);
|
break;
|
case 3:
|
sf[0] = this.bits.read(6);
|
sf[1] = sf[2] = this.bits.read(6);
|
break
|
}
|
}
|
}
|
if (mode === MP2.MODE.MONO) {
|
this.scaleFactor[1][sb][0] = this.scaleFactor[0][sb][0];
|
this.scaleFactor[1][sb][1] = this.scaleFactor[0][sb][1];
|
this.scaleFactor[1][sb][2] = this.scaleFactor[0][sb][2]
|
}
|
}
|
var outPos = 0;
|
for (var part = 0; part < 3; part++) {
|
for (var granule = 0; granule < 4; granule++) {
|
for (var sb = 0; sb < bound; sb++) {
|
this.readSamples(0, sb, part);
|
this.readSamples(1, sb, part)
|
}
|
for (var sb = bound; sb < sblimit; sb++) {
|
this.readSamples(0, sb, part);
|
this.sample[1][sb][0] = this.sample[0][sb][0];
|
this.sample[1][sb][1] = this.sample[0][sb][1];
|
this.sample[1][sb][2] = this.sample[0][sb][2]
|
}
|
for (var sb = sblimit; sb < 32; sb++) {
|
this.sample[0][sb][0] = 0;
|
this.sample[0][sb][1] = 0;
|
this.sample[0][sb][2] = 0;
|
this.sample[1][sb][0] = 0;
|
this.sample[1][sb][1] = 0;
|
this.sample[1][sb][2] = 0
|
}
|
for (var p = 0; p < 3; p++) {
|
this.VPos = this.VPos - 64 & 1023;
|
for (var ch = 0; ch < 2; ch++) {
|
MP2.MatrixTransform(this.sample[ch], p, this.V, this.VPos);
|
JSMpeg.Fill(this.U, 0);
|
var dIndex = 512 - (this.VPos >> 1);
|
var vIndex = this.VPos % 128 >> 1;
|
while (vIndex < 1024) {
|
for (var i = 0; i < 32; ++i) {
|
this.U[i] += this.D[dIndex++] * this.V[vIndex++]
|
}
|
vIndex += 128 - 32;
|
dIndex += 64 - 32
|
}
|
vIndex = 128 - 32 + 1024 - vIndex;
|
dIndex -= 512 - 32;
|
while (vIndex < 1024) {
|
for (var i = 0; i < 32; ++i) {
|
this.U[i] += this.D[dIndex++] * this.V[vIndex++]
|
}
|
vIndex += 128 - 32;
|
dIndex += 64 - 32
|
}
|
var outChannel = ch === 0 ? left: right;
|
for (var j = 0; j < 32; j++) {
|
outChannel[outPos + j] = this.U[j] / 2147418112
|
}
|
}
|
outPos += 32
|
}
|
}
|
}
|
this.sampleRate = sampleRate;
|
return frameSize
|
};
|
MP2.prototype.readAllocation = function(sb, tab3) {
|
var tab4 = MP2.QUANT_LUT_STEP_3[tab3][sb];
|
var qtab = MP2.QUANT_LUT_STEP4[tab4 & 15][this.bits.read(tab4 >> 4)];
|
return qtab ? MP2.QUANT_TAB[qtab - 1] : 0
|
};
|
MP2.prototype.readSamples = function(ch, sb, part) {
|
var q = this.allocation[ch][sb],
|
sf = this.scaleFactor[ch][sb][part],
|
sample = this.sample[ch][sb],
|
val = 0;
|
if (!q) {
|
sample[0] = sample[1] = sample[2] = 0;
|
return
|
}
|
if (sf === 63) {
|
sf = 0
|
} else {
|
var shift = sf / 3 | 0;
|
sf = MP2.SCALEFACTOR_BASE[sf % 3] + (1 << shift >> 1) >> shift
|
}
|
var adj = q.levels;
|
if (q.group) {
|
val = this.bits.read(q.bits);
|
sample[0] = val % adj;
|
val = val / adj | 0;
|
sample[1] = val % adj;
|
sample[2] = val / adj | 0
|
} else {
|
sample[0] = this.bits.read(q.bits);
|
sample[1] = this.bits.read(q.bits);
|
sample[2] = this.bits.read(q.bits)
|
}
|
var scale = 65536 / (adj + 1) | 0;
|
adj = (adj + 1 >> 1) - 1;
|
val = (adj - sample[0]) * scale;
|
sample[0] = val * (sf >> 12) + (val * (sf & 4095) + 2048 >> 12) >> 12;
|
val = (adj - sample[1]) * scale;
|
sample[1] = val * (sf >> 12) + (val * (sf & 4095) + 2048 >> 12) >> 12;
|
val = (adj - sample[2]) * scale;
|
sample[2] = val * (sf >> 12) + (val * (sf & 4095) + 2048 >> 12) >> 12
|
};
|
MP2.MatrixTransform = function(s, ss, d, dp) {
|
var t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15, t16, t17, t18, t19, t20, t21, t22, t23, t24, t25, t26, t27, t28, t29, t30, t31, t32, t33;
|
t01 = s[0][ss] + s[31][ss];
|
t02 = (s[0][ss] - s[31][ss]) * .500602998235;
|
t03 = s[1][ss] + s[30][ss];
|
t04 = (s[1][ss] - s[30][ss]) * .505470959898;
|
t05 = s[2][ss] + s[29][ss];
|
t06 = (s[2][ss] - s[29][ss]) * .515447309923;
|
t07 = s[3][ss] + s[28][ss];
|
t08 = (s[3][ss] - s[28][ss]) * .53104259109;
|
t09 = s[4][ss] + s[27][ss];
|
t10 = (s[4][ss] - s[27][ss]) * .553103896034;
|
t11 = s[5][ss] + s[26][ss];
|
t12 = (s[5][ss] - s[26][ss]) * .582934968206;
|
t13 = s[6][ss] + s[25][ss];
|
t14 = (s[6][ss] - s[25][ss]) * .622504123036;
|
t15 = s[7][ss] + s[24][ss];
|
t16 = (s[7][ss] - s[24][ss]) * .674808341455;
|
t17 = s[8][ss] + s[23][ss];
|
t18 = (s[8][ss] - s[23][ss]) * .744536271002;
|
t19 = s[9][ss] + s[22][ss];
|
t20 = (s[9][ss] - s[22][ss]) * .839349645416;
|
t21 = s[10][ss] + s[21][ss];
|
t22 = (s[10][ss] - s[21][ss]) * .972568237862;
|
t23 = s[11][ss] + s[20][ss];
|
t24 = (s[11][ss] - s[20][ss]) * 1.16943993343;
|
t25 = s[12][ss] + s[19][ss];
|
t26 = (s[12][ss] - s[19][ss]) * 1.48416461631;
|
t27 = s[13][ss] + s[18][ss];
|
t28 = (s[13][ss] - s[18][ss]) * 2.05778100995;
|
t29 = s[14][ss] + s[17][ss];
|
t30 = (s[14][ss] - s[17][ss]) * 3.40760841847;
|
t31 = s[15][ss] + s[16][ss];
|
t32 = (s[15][ss] - s[16][ss]) * 10.1900081235;
|
t33 = t01 + t31;
|
t31 = (t01 - t31) * .502419286188;
|
t01 = t03 + t29;
|
t29 = (t03 - t29) * .52249861494;
|
t03 = t05 + t27;
|
t27 = (t05 - t27) * .566944034816;
|
t05 = t07 + t25;
|
t25 = (t07 - t25) * .64682178336;
|
t07 = t09 + t23;
|
t23 = (t09 - t23) * .788154623451;
|
t09 = t11 + t21;
|
t21 = (t11 - t21) * 1.06067768599;
|
t11 = t13 + t19;
|
t19 = (t13 - t19) * 1.72244709824;
|
t13 = t15 + t17;
|
t17 = (t15 - t17) * 5.10114861869;
|
t15 = t33 + t13;
|
t13 = (t33 - t13) * .509795579104;
|
t33 = t01 + t11;
|
t01 = (t01 - t11) * .601344886935;
|
t11 = t03 + t09;
|
t09 = (t03 - t09) * .899976223136;
|
t03 = t05 + t07;
|
t07 = (t05 - t07) * 2.56291544774;
|
t05 = t15 + t03;
|
t15 = (t15 - t03) * .541196100146;
|
t03 = t33 + t11;
|
t11 = (t33 - t11) * 1.30656296488;
|
t33 = t05 + t03;
|
t05 = (t05 - t03) * .707106781187;
|
t03 = t15 + t11;
|
t15 = (t15 - t11) * .707106781187;
|
t03 += t15;
|
t11 = t13 + t07;
|
t13 = (t13 - t07) * .541196100146;
|
t07 = t01 + t09;
|
t09 = (t01 - t09) * 1.30656296488;
|
t01 = t11 + t07;
|
t07 = (t11 - t07) * .707106781187;
|
t11 = t13 + t09;
|
t13 = (t13 - t09) * .707106781187;
|
t11 += t13;
|
t01 += t11;
|
t11 += t07;
|
t07 += t13;
|
t09 = t31 + t17;
|
t31 = (t31 - t17) * .509795579104;
|
t17 = t29 + t19;
|
t29 = (t29 - t19) * .601344886935;
|
t19 = t27 + t21;
|
t21 = (t27 - t21) * .899976223136;
|
t27 = t25 + t23;
|
t23 = (t25 - t23) * 2.56291544774;
|
t25 = t09 + t27;
|
t09 = (t09 - t27) * .541196100146;
|
t27 = t17 + t19;
|
t19 = (t17 - t19) * 1.30656296488;
|
t17 = t25 + t27;
|
t27 = (t25 - t27) * .707106781187;
|
t25 = t09 + t19;
|
t19 = (t09 - t19) * .707106781187;
|
t25 += t19;
|
t09 = t31 + t23;
|
t31 = (t31 - t23) * .541196100146;
|
t23 = t29 + t21;
|
t21 = (t29 - t21) * 1.30656296488;
|
t29 = t09 + t23;
|
t23 = (t09 - t23) * .707106781187;
|
t09 = t31 + t21;
|
t31 = (t31 - t21) * .707106781187;
|
t09 += t31;
|
t29 += t09;
|
t09 += t23;
|
t23 += t31;
|
t17 += t29;
|
t29 += t25;
|
t25 += t09;
|
t09 += t27;
|
t27 += t23;
|
t23 += t19;
|
t19 += t31;
|
t21 = t02 + t32;
|
t02 = (t02 - t32) * .502419286188;
|
t32 = t04 + t30;
|
t04 = (t04 - t30) * .52249861494;
|
t30 = t06 + t28;
|
t28 = (t06 - t28) * .566944034816;
|
t06 = t08 + t26;
|
t08 = (t08 - t26) * .64682178336;
|
t26 = t10 + t24;
|
t10 = (t10 - t24) * .788154623451;
|
t24 = t12 + t22;
|
t22 = (t12 - t22) * 1.06067768599;
|
t12 = t14 + t20;
|
t20 = (t14 - t20) * 1.72244709824;
|
t14 = t16 + t18;
|
t16 = (t16 - t18) * 5.10114861869;
|
t18 = t21 + t14;
|
t14 = (t21 - t14) * .509795579104;
|
t21 = t32 + t12;
|
t32 = (t32 - t12) * .601344886935;
|
t12 = t30 + t24;
|
t24 = (t30 - t24) * .899976223136;
|
t30 = t06 + t26;
|
t26 = (t06 - t26) * 2.56291544774;
|
t06 = t18 + t30;
|
t18 = (t18 - t30) * .541196100146;
|
t30 = t21 + t12;
|
t12 = (t21 - t12) * 1.30656296488;
|
t21 = t06 + t30;
|
t30 = (t06 - t30) * .707106781187;
|
t06 = t18 + t12;
|
t12 = (t18 - t12) * .707106781187;
|
t06 += t12;
|
t18 = t14 + t26;
|
t26 = (t14 - t26) * .541196100146;
|
t14 = t32 + t24;
|
t24 = (t32 - t24) * 1.30656296488;
|
t32 = t18 + t14;
|
t14 = (t18 - t14) * .707106781187;
|
t18 = t26 + t24;
|
t24 = (t26 - t24) * .707106781187;
|
t18 += t24;
|
t32 += t18;
|
t18 += t14;
|
t26 = t14 + t24;
|
t14 = t02 + t16;
|
t02 = (t02 - t16) * .509795579104;
|
t16 = t04 + t20;
|
t04 = (t04 - t20) * .601344886935;
|
t20 = t28 + t22;
|
t22 = (t28 - t22) * .899976223136;
|
t28 = t08 + t10;
|
t10 = (t08 - t10) * 2.56291544774;
|
t08 = t14 + t28;
|
t14 = (t14 - t28) * .541196100146;
|
t28 = t16 + t20;
|
t20 = (t16 - t20) * 1.30656296488;
|
t16 = t08 + t28;
|
t28 = (t08 - t28) * .707106781187;
|
t08 = t14 + t20;
|
t20 = (t14 - t20) * .707106781187;
|
t08 += t20;
|
t14 = t02 + t10;
|
t02 = (t02 - t10) * .541196100146;
|
t10 = t04 + t22;
|
t22 = (t04 - t22) * 1.30656296488;
|
t04 = t14 + t10;
|
t10 = (t14 - t10) * .707106781187;
|
t14 = t02 + t22;
|
t02 = (t02 - t22) * .707106781187;
|
t14 += t02;
|
t04 += t14;
|
t14 += t10;
|
t10 += t02;
|
t16 += t04;
|
t04 += t08;
|
t08 += t14;
|
t14 += t28;
|
t28 += t10;
|
t10 += t20;
|
t20 += t02;
|
t21 += t16;
|
t16 += t32;
|
t32 += t04;
|
t04 += t06;
|
t06 += t08;
|
t08 += t18;
|
t18 += t14;
|
t14 += t30;
|
t30 += t28;
|
t28 += t26;
|
t26 += t10;
|
t10 += t12;
|
t12 += t20;
|
t20 += t24;
|
t24 += t02;
|
d[dp + 48] = -t33;
|
d[dp + 49] = d[dp + 47] = -t21;
|
d[dp + 50] = d[dp + 46] = -t17;
|
d[dp + 51] = d[dp + 45] = -t16;
|
d[dp + 52] = d[dp + 44] = -t01;
|
d[dp + 53] = d[dp + 43] = -t32;
|
d[dp + 54] = d[dp + 42] = -t29;
|
d[dp + 55] = d[dp + 41] = -t04;
|
d[dp + 56] = d[dp + 40] = -t03;
|
d[dp + 57] = d[dp + 39] = -t06;
|
d[dp + 58] = d[dp + 38] = -t25;
|
d[dp + 59] = d[dp + 37] = -t08;
|
d[dp + 60] = d[dp + 36] = -t11;
|
d[dp + 61] = d[dp + 35] = -t18;
|
d[dp + 62] = d[dp + 34] = -t09;
|
d[dp + 63] = d[dp + 33] = -t14;
|
d[dp + 32] = -t05;
|
d[dp + 0] = t05;
|
d[dp + 31] = -t30;
|
d[dp + 1] = t30;
|
d[dp + 30] = -t27;
|
d[dp + 2] = t27;
|
d[dp + 29] = -t28;
|
d[dp + 3] = t28;
|
d[dp + 28] = -t07;
|
d[dp + 4] = t07;
|
d[dp + 27] = -t26;
|
d[dp + 5] = t26;
|
d[dp + 26] = -t23;
|
d[dp + 6] = t23;
|
d[dp + 25] = -t10;
|
d[dp + 7] = t10;
|
|
d[dp + 24] = -t15;
|
d[dp + 8] = t15;
|
d[dp + 23] = -t12;
|
d[dp + 9] = t12;
|
d[dp + 22] = -t19;
|
d[dp + 10] = t19;
|
d[dp + 21] = -t20;
|
d[dp + 11] = t20;
|
d[dp + 20] = -t13;
|
d[dp + 12] = t13;
|
d[dp + 19] = -t24;
|
d[dp + 13] = t24;
|
d[dp + 18] = -t31;
|
d[dp + 14] = t31;
|
d[dp + 17] = -t02;
|
d[dp + 15] = t02;
|
d[dp + 16] = 0
|
};
|
MP2.FRAME_SYNC = 2047;
|
MP2.VERSION = {
|
MPEG_2_5: 0,
|
MPEG_2: 2,
|
MPEG_1: 3
|
};
|
MP2.LAYER = {
|
III: 1,
|
II: 2,
|
I: 3
|
};
|
MP2.MODE = {
|
STEREO: 0,
|
JOINT_STEREO: 1,
|
DUAL_CHANNEL: 2,
|
MONO: 3
|
};
|
MP2.SAMPLE_RATE = new Uint16Array([44100, 48e3, 32e3, 0, 22050, 24e3, 16e3, 0]);
|
MP2.BIT_RATE = new Uint16Array([32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160]);
|
MP2.SCALEFACTOR_BASE = new Uint32Array([33554432, 26632170, 21137968]);
|
MP2.SYNTHESIS_WINDOW = new Float32Array([0, -.5, -.5, -.5, -.5, -.5, -.5, -1, -1, -1, -1, -1.5, -1.5, -2, -2, -2.5, -2.5, -3, -3.5, -3.5, -4, -4.5, -5, -5.5, -6.5, -7, -8, -8.5, -9.5, -10.5, -12, -13, -14.5, -15.5, -17.5, -19, -20.5, -22.5, -24.5, -26.5, -29, -31.5, -34, -36.5, -39.5, -42.5, -45.5, -48.5, -52, -55.5, -58.5, -62.5, -66, -69.5, -73.5, -77, -80.5, -84.5, -88, -91.5, -95, -98, -101, -104, 106.5, 109, 111, 112.5, 113.5, 114, 114, 113.5, 112, 110.5, 107.5, 104, 100, 94.5, 88.5, 81.5, 73, 63.5, 53, 41.5, 28.5, 14.5, -1, -18, -36, -55.5, -76.5, -98.5, -122, -147, -173.5, -200.5, -229.5, -259.5, -290.5, -322.5, -355.5, -389.5, -424, -459.5, -495.5, -532, -568.5, -605, -641.5, -678, -714, -749, -783.5, -817, -849, -879.5, -908.5, -935, -959.5, -981, -1000.5, -1016, -1028.5, -1037.5, -1042.5, -1043.5, -1040, -1031.5, 1018.5, 1e3, 976, 946.5, 911, 869.5, 822, 767.5, 707, 640, 565.5, 485, 397, 302.5, 201, 92.5, -22.5, -144, -272.5, -407, -547.5, -694, -846, -1003, -1165, -1331.5, -1502, -1675.5, -1852.5, -2031.5, -2212.5, -2394, -2576.5, -2758.5, -2939.5, -3118.5, -3294.5, -3467.5, -3635.5, -3798.5, -3955, -4104.5, -4245.5, -4377.5, -4499, -4609.5, -4708, -4792.5, -4863.5, -4919, -4958, -4979.5, -4983, -4967.5, -4931.5, -4875, -4796, -4694.5, -4569.5, -4420, -4246, -4046, -3820, -3567, 3287, 2979.5, 2644, 2280.5, 1888, 1467.5, 1018.5, 541, 35, -499, -1061, -1650, -2266.5, -2909, -3577, -4270, -4987.5, -5727.5, -6490, -7274, -8077.5, -8899.5, -9739, -10594.5, -11464.5, -12347, -13241, -14144.5, -15056, -15973.5, -16895.5, -17820, -18744.5, -19668, -20588, -21503, -22410.5, -23308.5, -24195, -25068.5, -25926.5, -26767, -27589, -28389, -29166.5, -29919, -30644.5, -31342, -32009.5, -32645, -33247, -33814.5, -34346, -34839.5, -35295, -35710, -36084.5, -36417.5, -36707.5, -36954, -37156.5, -37315, -37428, -37496, 37519, 37496, 37428, 37315, 37156.5, 36954, 36707.5, 36417.5, 36084.5, 35710, 35295, 34839.5, 34346, 33814.5, 33247, 32645, 32009.5, 31342, 30644.5, 29919, 29166.5, 28389, 27589, 26767, 25926.5, 25068.5, 24195, 23308.5, 22410.5, 21503, 20588, 19668, 18744.5, 17820, 16895.5, 15973.5, 15056, 14144.5, 13241, 12347, 11464.5, 10594.5, 9739, 8899.5, 8077.5, 7274, 6490, 5727.5, 4987.5, 4270, 3577, 2909, 2266.5, 1650, 1061, 499, -35, -541, -1018.5, -1467.5, -1888, -2280.5, -2644, -2979.5, 3287, 3567, 3820, 4046, 4246, 4420, 4569.5, 4694.5, 4796, 4875, 4931.5, 4967.5, 4983, 4979.5, 4958, 4919, 4863.5, 4792.5, 4708, 4609.5, 4499, 4377.5, 4245.5, 4104.5, 3955, 3798.5, 3635.5, 3467.5, 3294.5, 3118.5, 2939.5, 2758.5, 2576.5, 2394, 2212.5, 2031.5, 1852.5, 1675.5, 1502, 1331.5, 1165, 1003, 846, 694, 547.5, 407, 272.5, 144, 22.5, -92.5, -201, -302.5, -397, -485, -565.5, -640, -707, -767.5, -822, -869.5, -911, -946.5, -976, -1e3, 1018.5, 1031.5, 1040, 1043.5, 1042.5, 1037.5, 1028.5, 1016, 1000.5, 981, 959.5, 935, 908.5, 879.5, 849, 817, 783.5, 749, 714, 678, 641.5, 605, 568.5, 532, 495.5, 459.5, 424, 389.5, 355.5, 322.5, 290.5, 259.5, 229.5, 200.5, 173.5, 147, 122, 98.5, 76.5, 55.5, 36, 18, 1, -14.5, -28.5, -41.5, -53, -63.5, -73, -81.5, -88.5, -94.5, -100, -104, -107.5, -110.5, -112, -113.5, -114, -114, -113.5, -112.5, -111, -109, 106.5, 104, 101, 98, 95, 91.5, 88, 84.5, 80.5, 77, 73.5, 69.5, 66, 62.5, 58.5, 55.5, 52, 48.5, 45.5, 42.5, 39.5, 36.5, 34, 31.5, 29, 26.5, 24.5, 22.5, 20.5, 19, 17.5, 15.5, 14.5, 13, 12, 10.5, 9.5, 8.5, 8, 7, 6.5, 5.5, 5, 4.5, 4, 3.5, 3.5, 3, 2.5, 2.5, 2, 2, 1.5, 1.5, 1, 1, 1, 1, .5, .5, .5, .5, .5, .5]);
|
MP2.QUANT_LUT_STEP_1 = [[0, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2], [0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 2]];
|
MP2.QUANT_TAB = {
|
A: 27 | 64,
|
B: 30 | 64,
|
C: 8,
|
D: 12
|
};
|
MP2.QUANT_LUT_STEP_2 = [[MP2.QUANT_TAB.C, MP2.QUANT_TAB.C, MP2.QUANT_TAB.D], [MP2.QUANT_TAB.A, MP2.QUANT_TAB.A, MP2.QUANT_TAB.A], [MP2.QUANT_TAB.B, MP2.QUANT_TAB.A, MP2.QUANT_TAB.B]];
|
MP2.QUANT_LUT_STEP_3 = [[68, 68, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52], [67, 67, 67, 66, 66, 66, 66, 66, 66, 66, 66, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 32, 32, 32, 32, 32, 32, 32], [69, 69, 69, 69, 52, 52, 52, 52, 52, 52, 52, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36]];
|
MP2.QUANT_LUT_STEP4 = [[0, 1, 2, 17], [0, 1, 2, 3, 4, 5, 6, 17], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17], [0, 1, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17], [0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]];
|
MP2.QUANT_TAB = [{
|
levels: 3,
|
group: 1,
|
bits: 5
|
},
|
{
|
levels: 5,
|
group: 1,
|
bits: 7
|
},
|
{
|
levels: 7,
|
group: 0,
|
bits: 3
|
},
|
{
|
levels: 9,
|
group: 1,
|
bits: 10
|
},
|
{
|
levels: 15,
|
group: 0,
|
bits: 4
|
},
|
{
|
levels: 31,
|
group: 0,
|
bits: 5
|
},
|
{
|
levels: 63,
|
group: 0,
|
bits: 6
|
},
|
{
|
levels: 127,
|
group: 0,
|
bits: 7
|
},
|
{
|
levels: 255,
|
group: 0,
|
bits: 8
|
},
|
{
|
levels: 511,
|
group: 0,
|
bits: 9
|
},
|
{
|
levels: 1023,
|
group: 0,
|
bits: 10
|
},
|
{
|
levels: 2047,
|
group: 0,
|
bits: 11
|
},
|
{
|
levels: 4095,
|
group: 0,
|
bits: 12
|
},
|
{
|
levels: 8191,
|
group: 0,
|
bits: 13
|
},
|
{
|
levels: 16383,
|
group: 0,
|
bits: 14
|
},
|
{
|
levels: 32767,
|
group: 0,
|
bits: 15
|
},
|
{
|
levels: 65535,
|
group: 0,
|
bits: 16
|
}];
|
return MP2
|
} ();
|
JSMpeg.Decoder.MP2AudioWASM = function() {
|
"use strict";
|
var MP2WASM = function(options) {
|
JSMpeg.Decoder.Base.call(this, options);
|
this.onDecodeCallback = options.onAudioDecode;
|
this.module = options.wasmModule;
|
this.bufferSize = options.audioBufferSize || 128 * 1024;
|
this.bufferMode = options.streaming ? JSMpeg.BitBuffer.MODE.EVICT: JSMpeg.BitBuffer.MODE.EXPAND;
|
this.sampleRate = 0
|
};
|
MP2WASM.prototype = Object.create(JSMpeg.Decoder.Base.prototype);
|
MP2WASM.prototype.constructor = MP2WASM;
|
MP2WASM.prototype.initializeWasmDecoder = function() {
|
if (!this.module.instance) {
|
console.warn("JSMpeg: WASM module not compiled yet");
|
return
|
}
|
this.instance = this.module.instance;
|
this.functions = this.module.instance.exports;
|
this.decoder = this.functions._mp2_decoder_create(this.bufferSize, this.bufferMode)
|
};
|
MP2WASM.prototype.destroy = function() {
|
if (!this.decoder) {
|
return
|
}
|
this.functions._mp2_decoder_destroy(this.decoder)
|
};
|
MP2WASM.prototype.bufferGetIndex = function() {
|
if (!this.decoder) {
|
return
|
}
|
return this.functions._mp2_decoder_get_index(this.decoder)
|
};
|
MP2WASM.prototype.bufferSetIndex = function(index) {
|
if (!this.decoder) {
|
return
|
}
|
this.functions._mp2_decoder_set_index(this.decoder, index)
|
};
|
MP2WASM.prototype.bufferWrite = function(buffers) {
|
if (!this.decoder) {
|
this.initializeWasmDecoder()
|
}
|
var totalLength = 0;
|
for (var i = 0; i < buffers.length; i++) {
|
totalLength += buffers[i].length
|
}
|
var ptr = this.functions._mp2_decoder_get_write_ptr(this.decoder, totalLength);
|
for (var i = 0; i < buffers.length; i++) {
|
this.instance.heapU8.set(buffers[i], ptr);
|
ptr += buffers[i].length
|
}
|
this.functions._mp2_decoder_did_write(this.decoder, totalLength);
|
return totalLength
|
};
|
MP2WASM.prototype.decode = function() {
|
var startTime = JSMpeg.Now();
|
if (!this.decoder) {
|
return false
|
}
|
var decodedBytes = this.functions._mp2_decoder_decode(this.decoder);
|
if (decodedBytes === 0) {
|
return false
|
}
|
if (!this.sampleRate) {
|
this.sampleRate = this.functions._mp2_decoder_get_sample_rate(this.decoder)
|
}
|
if (this.destination) {
|
var leftPtr = this.functions._mp2_decoder_get_left_channel_ptr(this.decoder),
|
rightPtr = this.functions._mp2_decoder_get_right_channel_ptr(this.decoder);
|
var leftOffset = leftPtr / Float32Array.BYTES_PER_ELEMENT,
|
rightOffset = rightPtr / Float32Array.BYTES_PER_ELEMENT;
|
var left = this.instance.heapF32.subarray(leftOffset, leftOffset + MP2WASM.SAMPLES_PER_FRAME),
|
right = this.instance.heapF32.subarray(rightOffset, rightOffset + MP2WASM.SAMPLES_PER_FRAME);
|
this.destination.play(this.sampleRate, left, right)
|
}
|
this.advanceDecodedTime(MP2WASM.SAMPLES_PER_FRAME / this.sampleRate);
|
var elapsedTime = JSMpeg.Now() - startTime;
|
if (this.onDecodeCallback) {
|
this.onDecodeCallback(this, elapsedTime)
|
}
|
return true
|
};
|
MP2WASM.prototype.getCurrentTime = function() {
|
var enqueuedTime = this.destination ? this.destination.enqueuedTime: 0;
|
return this.decodedTime - enqueuedTime
|
};
|
MP2WASM.SAMPLES_PER_FRAME = 1152;
|
return MP2WASM
|
} ();
|
JSMpeg.Renderer.WebGL = function() {
|
"use strict";
|
var WebGLRenderer = function(options) {
|
this.canvas = options.canvas || document.createElement("canvas");
|
this.width = this.canvas.width;
|
this.height = this.canvas.height;
|
this.enabled = true;
|
this.hasTextureData = {};
|
var contextCreateOptions = {
|
preserveDrawingBuffer: !!options.preserveDrawingBuffer,
|
alpha: false,
|
depth: false,
|
stencil: false,
|
antialias: false,
|
premultipliedAlpha: false
|
};
|
this.gl = this.canvas.getContext("webgl", contextCreateOptions) || this.canvas.getContext("experimental-webgl", contextCreateOptions);
|
if (!this.gl) {
|
throw new Error("Failed to get WebGL Context")
|
}
|
var gl = this.gl;
|
var vertexAttr = null;
|
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
|
this.vertexBuffer = gl.createBuffer();
|
var vertexCoords = new Float32Array([0, 0, 0, 1, 1, 0, 1, 1]);
|
gl.bindBuffer(gl.ARRAY_BUFFER, this.vertexBuffer);
|
gl.bufferData(gl.ARRAY_BUFFER, vertexCoords, gl.STATIC_DRAW);
|
this.program = this.createProgram(WebGLRenderer.SHADER.VERTEX_IDENTITY, WebGLRenderer.SHADER.FRAGMENT_YCRCB_TO_RGBA);
|
vertexAttr = gl.getAttribLocation(this.program, "vertex");
|
gl.enableVertexAttribArray(vertexAttr);
|
gl.vertexAttribPointer(vertexAttr, 2, gl.FLOAT, false, 0, 0);
|
this.textureY = this.createTexture(0, "textureY");
|
this.textureCb = this.createTexture(1, "textureCb");
|
this.textureCr = this.createTexture(2, "textureCr");
|
this.loadingProgram = this.createProgram(WebGLRenderer.SHADER.VERTEX_IDENTITY, WebGLRenderer.SHADER.FRAGMENT_LOADING);
|
vertexAttr = gl.getAttribLocation(this.loadingProgram, "vertex");
|
gl.enableVertexAttribArray(vertexAttr);
|
gl.vertexAttribPointer(vertexAttr, 2, gl.FLOAT, false, 0, 0);
|
this.shouldCreateUnclampedViews = !this.allowsClampedTextureData()
|
};
|
WebGLRenderer.prototype.destroy = function() {
|
var gl = this.gl;
|
gl.deleteTexture(this.textureY);
|
gl.deleteTexture(this.textureCb);
|
gl.deleteTexture(this.textureCr);
|
gl.deleteProgram(this.program);
|
gl.deleteProgram(this.loadingProgram);
|
gl.deleteBuffer(this.vertexBuffer);
|
gl.getExtension("WEBGL_lose_context").loseContext();
|
this.canvas.remove()
|
};
|
WebGLRenderer.prototype.resize = function(width, height) {
|
this.width = width | 0;
|
this.height = height | 0;
|
this.canvas.width = this.width;
|
this.canvas.height = this.height;
|
this.gl.useProgram(this.program);
|
var codedWidth = this.width + 15 >> 4 << 4;
|
this.gl.viewport(0, 0, codedWidth, this.height)
|
};
|
WebGLRenderer.prototype.createTexture = function(index, name) {
|
var gl = this.gl;
|
var texture = gl.createTexture();
|
gl.bindTexture(gl.TEXTURE_2D, texture);
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
|
gl.uniform1i(gl.getUniformLocation(this.program, name), index);
|
return texture
|
};
|
WebGLRenderer.prototype.createProgram = function(vsh, fsh) {
|
var gl = this.gl;
|
var program = gl.createProgram();
|
gl.attachShader(program, this.compileShader(gl.VERTEX_SHADER, vsh));
|
gl.attachShader(program, this.compileShader(gl.FRAGMENT_SHADER, fsh));
|
gl.linkProgram(program);
|
gl.useProgram(program);
|
return program
|
};
|
WebGLRenderer.prototype.compileShader = function(type, source) {
|
var gl = this.gl;
|
var shader = gl.createShader(type);
|
gl.shaderSource(shader, source);
|
gl.compileShader(shader);
|
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
|
throw new Error(gl.getShaderInfoLog(shader))
|
}
|
return shader
|
};
|
WebGLRenderer.prototype.allowsClampedTextureData = function() {
|
var gl = this.gl;
|
var texture = gl.createTexture();
|
gl.bindTexture(gl.TEXTURE_2D, texture);
|
gl.texImage2D(gl.TEXTURE_2D, 0, gl.LUMINANCE, 1, 1, 0, gl.LUMINANCE, gl.UNSIGNED_BYTE, new Uint8ClampedArray([0]));
|
return gl.getError() === 0
|
};
|
WebGLRenderer.prototype.renderProgress = function(progress) {
|
var gl = this.gl;
|
gl.useProgram(this.loadingProgram);
|
var loc = gl.getUniformLocation(this.loadingProgram, "progress");
|
gl.uniform1f(loc, progress);
|
gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4)
|
};
|
WebGLRenderer.prototype.render = function(y, cb, cr, isClampedArray) {
|
if (!this.enabled) {
|
return
|
}
|
var gl = this.gl;
|
var w = this.width + 15 >> 4 << 4,
|
h = this.height,
|
w2 = w >> 1,
|
h2 = h >> 1;
|
if (isClampedArray && this.shouldCreateUnclampedViews) {
|
y = new Uint8Array(y.buffer),
|
cb = new Uint8Array(cb.buffer),
|
cr = new Uint8Array(cr.buffer)
|
}
|
gl.useProgram(this.program);
|
this.updateTexture(gl.TEXTURE0, this.textureY, w, h, y);
|
this.updateTexture(gl.TEXTURE1, this.textureCb, w2, h2, cb);
|
this.updateTexture(gl.TEXTURE2, this.textureCr, w2, h2, cr);
|
gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4)
|
};
|
WebGLRenderer.prototype.updateTexture = function(unit, texture, w, h, data) {
|
var gl = this.gl;
|
gl.activeTexture(unit);
|
gl.bindTexture(gl.TEXTURE_2D, texture);
|
if (this.hasTextureData[unit]) {
|
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, w, h, gl.LUMINANCE, gl.UNSIGNED_BYTE, data)
|
} else {
|
this.hasTextureData[unit] = true;
|
gl.texImage2D(gl.TEXTURE_2D, 0, gl.LUMINANCE, w, h, 0, gl.LUMINANCE, gl.UNSIGNED_BYTE, data)
|
}
|
};
|
WebGLRenderer.IsSupported = function() {
|
try {
|
if (!window.WebGLRenderingContext) {
|
return false
|
}
|
var canvas = document.createElement("canvas");
|
return !! (canvas.getContext("webgl") || canvas.getContext("experimental-webgl"))
|
} catch(err) {
|
return false
|
}
|
};
|
WebGLRenderer.SHADER = {
|
FRAGMENT_YCRCB_TO_RGBA: ["precision mediump float;", "uniform sampler2D textureY;", "uniform sampler2D textureCb;", "uniform sampler2D textureCr;", "varying vec2 texCoord;", "mat4 rec601 = mat4(", "1.16438, 0.00000, 1.59603, -0.87079,", "1.16438, -0.39176, -0.81297, 0.52959,", "1.16438, 2.01723, 0.00000, -1.08139,", "0, 0, 0, 1", ");", "void main() {", "float y = texture2D(textureY, texCoord).r;", "float cb = texture2D(textureCb, texCoord).r;", "float cr = texture2D(textureCr, texCoord).r;", "gl_FragColor = vec4(y, cr, cb, 1.0) * rec601;", "}"].join("\n"),
|
FRAGMENT_LOADING: ["precision mediump float;", "uniform float progress;", "varying vec2 texCoord;", "void main() {", "float c = ceil(progress-(1.0-texCoord.y));", "gl_FragColor = vec4(c,c,c,1);", "}"].join("\n"),
|
VERTEX_IDENTITY: ["attribute vec2 vertex;", "varying vec2 texCoord;", "void main() {", "texCoord = vertex;", "gl_Position = vec4((vertex * 2.0 - 1.0) * vec2(1, -1), 0.0, 1.0);", "}"].join("\n")
|
};
|
return WebGLRenderer
|
} ();
|
JSMpeg.Renderer.Canvas2D = function() {
|
"use strict";
|
var CanvasRenderer = function(options) {
|
this.canvas = options.canvas || document.createElement("canvas");
|
this.width = this.canvas.width;
|
this.height = this.canvas.height;
|
this.enabled = true;
|
this.context = this.canvas.getContext("2d")
|
};
|
CanvasRenderer.prototype.destroy = function() {};
|
CanvasRenderer.prototype.resize = function(width, height) {
|
this.width = width | 0;
|
this.height = height | 0;
|
this.canvas.width = this.width;
|
this.canvas.height = this.height;
|
this.imageData = this.context.getImageData(0, 0, this.width, this.height);
|
JSMpeg.Fill(this.imageData.data, 255)
|
};
|
CanvasRenderer.prototype.renderProgress = function(progress) {
|
var w = this.canvas.width,
|
h = this.canvas.height,
|
ctx = this.context;
|
ctx.fillStyle = "#222";
|
ctx.fillRect(0, 0, w, h);
|
ctx.fillStyle = "#fff";
|
ctx.fillRect(0, h - h * progress, w, h * progress)
|
};
|
CanvasRenderer.prototype.render = function(y, cb, cr) {
|
this.YCbCrToRGBA(y, cb, cr, this.imageData.data);
|
this.context.putImageData(this.imageData, 0, 0)
|
};
|
CanvasRenderer.prototype.YCbCrToRGBA = function(y, cb, cr, rgba) {
|
if (!this.enabled) {
|
return
|
}
|
var w = this.width + 15 >> 4 << 4,
|
w2 = w >> 1;
|
var yIndex1 = 0,
|
yIndex2 = w,
|
yNext2Lines = w + (w - this.width);
|
var cIndex = 0,
|
cNextLine = w2 - (this.width >> 1);
|
var rgbaIndex1 = 0,
|
rgbaIndex2 = this.width * 4,
|
rgbaNext2Lines = this.width * 4;
|
var cols = this.width >> 1,
|
rows = this.height >> 1;
|
var ccb, ccr, r, g, b;
|
for (var row = 0; row < rows; row++) {
|
for (var col = 0; col < cols; col++) {
|
ccb = cb[cIndex];
|
ccr = cr[cIndex];
|
cIndex++;
|
r = ccb + (ccb * 103 >> 8) - 179;
|
g = (ccr * 88 >> 8) - 44 + (ccb * 183 >> 8) - 91;
|
b = ccr + (ccr * 198 >> 8) - 227;
|
var y1 = y[yIndex1++];
|
var y2 = y[yIndex1++];
|
rgba[rgbaIndex1] = y1 + r;
|
rgba[rgbaIndex1 + 1] = y1 - g;
|
rgba[rgbaIndex1 + 2] = y1 + b;
|
rgba[rgbaIndex1 + 4] = y2 + r;
|
rgba[rgbaIndex1 + 5] = y2 - g;
|
rgba[rgbaIndex1 + 6] = y2 + b;
|
rgbaIndex1 += 8;
|
var y3 = y[yIndex2++];
|
var y4 = y[yIndex2++];
|
rgba[rgbaIndex2] = y3 + r;
|
rgba[rgbaIndex2 + 1] = y3 - g;
|
rgba[rgbaIndex2 + 2] = y3 + b;
|
rgba[rgbaIndex2 + 4] = y4 + r;
|
rgba[rgbaIndex2 + 5] = y4 - g;
|
rgba[rgbaIndex2 + 6] = y4 + b;
|
rgbaIndex2 += 8
|
}
|
yIndex1 += yNext2Lines;
|
yIndex2 += yNext2Lines;
|
rgbaIndex1 += rgbaNext2Lines;
|
rgbaIndex2 += rgbaNext2Lines;
|
cIndex += cNextLine
|
}
|
};
|
return CanvasRenderer
|
} ();
|
JSMpeg.AudioOutput.WebAudio = function() {
|
"use strict";
|
var WebAudioOut = function(options) {
|
this.context = WebAudioOut.CachedContext = WebAudioOut.CachedContext || new(window.AudioContext || window.webkitAudioContext);
|
this.gain = this.context.createGain();
|
this.destination = this.gain;
|
this.gain.connect(this.context.destination);
|
this.context._connections = (this.context._connections || 0) + 1;
|
this.startTime = 0;
|
this.buffer = null;
|
this.wallclockStartTime = 0;
|
this.volume = 1;
|
this.enabled = true;
|
this.unlocked = !WebAudioOut.NeedsUnlocking();
|
Object.defineProperty(this, "enqueuedTime", {
|
get: this.getEnqueuedTime
|
})
|
};
|
WebAudioOut.prototype.destroy = function() {
|
this.gain.disconnect();
|
this.context._connections--;
|
if (this.context._connections === 0) {
|
this.context.close();
|
WebAudioOut.CachedContext = null
|
}
|
};
|
WebAudioOut.prototype.play = function(sampleRate, left, right) {
|
if (!this.enabled) {
|
return
|
}
|
if (!this.unlocked) {
|
var ts = JSMpeg.Now();
|
if (this.wallclockStartTime < ts) {
|
this.wallclockStartTime = ts
|
}
|
this.wallclockStartTime += left.length / sampleRate;
|
return
|
}
|
this.gain.gain.value = this.volume;
|
var buffer = this.context.createBuffer(2, left.length, sampleRate);
|
buffer.getChannelData(0).set(left);
|
buffer.getChannelData(1).set(right);
|
var source = this.context.createBufferSource();
|
source.buffer = buffer;
|
source.connect(this.destination);
|
var now = this.context.currentTime;
|
var duration = buffer.duration;
|
if (this.startTime < now) {
|
this.startTime = now;
|
this.wallclockStartTime = JSMpeg.Now()
|
}
|
source.start(this.startTime);
|
this.startTime += duration;
|
this.wallclockStartTime += duration
|
};
|
WebAudioOut.prototype.stop = function() {
|
this.gain.gain.value = 0
|
};
|
WebAudioOut.prototype.getEnqueuedTime = function() {
|
return Math.max(this.wallclockStartTime - JSMpeg.Now(), 0)
|
};
|
WebAudioOut.prototype.resetEnqueuedTime = function() {
|
this.startTime = this.context.currentTime;
|
this.wallclockStartTime = JSMpeg.Now()
|
};
|
WebAudioOut.prototype.unlock = function(callback) {
|
if (this.unlocked) {
|
if (callback) {
|
callback()
|
}
|
return
|
}
|
this.unlockCallback = callback;
|
var buffer = this.context.createBuffer(1, 1, 22050);
|
var source = this.context.createBufferSource();
|
source.buffer = buffer;
|
source.connect(this.destination);
|
source.start(0);
|
setTimeout(this.checkIfUnlocked.bind(this, source, 0), 0)
|
};
|
WebAudioOut.prototype.checkIfUnlocked = function(source, attempt) {
|
if (source.playbackState === source.PLAYING_STATE || source.playbackState === source.FINISHED_STATE) {
|
this.unlocked = true;
|
if (this.unlockCallback) {
|
this.unlockCallback();
|
this.unlockCallback = null
|
}
|
} else if (attempt < 10) {
|
setTimeout(this.checkIfUnlocked.bind(this, source, attempt + 1), 100)
|
}
|
};
|
WebAudioOut.NeedsUnlocking = function() {
|
return /iPhone|iPad|iPod/i.test(navigator.userAgent)
|
};
|
WebAudioOut.IsSupported = function() {
|
return window.AudioContext || window.webkitAudioContext
|
};
|
WebAudioOut.CachedContext = null;
|
return WebAudioOut
|
} ();
|
JSMpeg.WASMModule = function() {
|
"use strict";
|
var WASM = function() {
|
this.stackSize = 5 * 1024 * 1024;
|
this.pageSize = 64 * 1024;
|
this.onInitCallback = null
|
};
|
WASM.prototype.write = function(buffer) {
|
this.loadFromBuffer(buffer, this.onInitCallback)
|
};
|
WASM.prototype.loadFromFile = function(url, callback) {
|
this.onInitCallback = callback;
|
var ajax = new JSMpeg.Source.Ajax(url);
|
ajax.connect(this);
|
ajax.start()
|
};
|
WASM.prototype.loadFromBuffer = function(buffer, callback) {
|
this.moduleInfo = this.readDylinkSection(buffer);
|
if (!this.moduleInfo) {
|
this.callback && this.callback(null);
|
return
|
}
|
this.memory = new WebAssembly.Memory({
|
initial: 256
|
});
|
var env = {
|
memory: this.memory,
|
memoryBase: 0,
|
__memory_base: 0,
|
table: new WebAssembly.Table({
|
initial: this.moduleInfo.tableSize,
|
element: "anyfunc"
|
}),
|
tableBase: 0,
|
__table_base: 0,
|
abort: this.c_abort.bind(this),
|
___assert_fail: this.c_assertFail.bind(this),
|
_sbrk: this.c_sbrk.bind(this)
|
};
|
this.brk = this.align(this.moduleInfo.memorySize + this.stackSize);
|
WebAssembly.instantiate(buffer, {
|
env: env
|
}).then(function(results) {
|
this.instance = results.instance;
|
if (this.instance.exports.__post_instantiate) {
|
this.instance.exports.__post_instantiate()
|
}
|
this.createHeapViews();
|
callback && callback(this)
|
}.bind(this))
|
};
|
WASM.prototype.createHeapViews = function() {
|
this.instance.heapU8 = new Uint8Array(this.memory.buffer);
|
this.instance.heapU32 = new Uint32Array(this.memory.buffer);
|
this.instance.heapF32 = new Float32Array(this.memory.buffer)
|
};
|
WASM.prototype.align = function(addr) {
|
var a = Math.pow(2, this.moduleInfo.memoryAlignment);
|
return Math.ceil(addr / a) * a
|
};
|
WASM.prototype.c_sbrk = function(size) {
|
var previousBrk = this.brk;
|
this.brk += size;
|
if (this.brk > this.memory.buffer.byteLength) {
|
var bytesNeeded = this.brk - this.memory.buffer.byteLength;
|
var pagesNeeded = Math.ceil(bytesNeeded / this.pageSize);
|
this.memory.grow(pagesNeeded);
|
this.createHeapViews()
|
}
|
return previousBrk
|
};
|
WASM.prototype.c_abort = function(size) {
|
console.warn("JSMPeg: WASM abort", arguments)
|
};
|
WASM.prototype.c_assertFail = function(size) {
|
console.warn("JSMPeg: WASM ___assert_fail", arguments)
|
};
|
WASM.prototype.readDylinkSection = function(buffer) {
|
var bytes = new Uint8Array(buffer);
|
var next = 0;
|
var readVarUint = function() {
|
var ret = 0;
|
var mul = 1;
|
while (1) {
|
var byte = bytes[next++];
|
ret += (byte & 127) * mul;
|
mul *= 128;
|
if (! (byte & 128)) {
|
return ret
|
}
|
}
|
};
|
var matchNextBytes = function(expected) {
|
for (var i = 0; i < expected.length; i++) {
|
var b = typeof expected[i] === "string" ? expected[i].charCodeAt(0) : expected[i];
|
if (bytes[next++] !== b) {
|
return false
|
}
|
}
|
return true
|
};
|
if (!matchNextBytes([0, "a", "s", "m"])) {
|
console.warn("JSMpeg: WASM header not found");
|
return null
|
}
|
var next = 9;
|
var sectionSize = readVarUint();
|
if (!matchNextBytes([6, "d", "y", "l", "i", "n", "k"])) {
|
console.warn("JSMpeg: No dylink section found in WASM");
|
return null
|
}
|
return {
|
memorySize: readVarUint(),
|
memoryAlignment: readVarUint(),
|
tableSize: readVarUint(),
|
tableAlignment: readVarUint()
|
}
|
};
|
WASM.IsSupported = function() {
|
return !! window.WebAssembly
|
};
|
return WASM
|
} ();
|
JSMpeg.WASM_BINARY_INLINED = 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export default JSMpeg;
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