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codec-bench.html
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codec-bench.html
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<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<title>ogv.js codec benchmark</title>
<body>
<h1>ogv.js codec benchmark</h1>
<h2>Options</h2>
<div>
<label for=url>Source:</label> <input name=url id=url size=72 value="https://media-streaming.wmflabs.org/clean/av1-2/caminandes-llamigos.webm.640x360.av1.webm">
</div>
<div>
<input type=checkbox name=wasm id=wasm checked> <label for=wasm>WebAssembly</label>
<input type=checkbox name=worker id=worker> <label for=worker>Worker</label>
<input type=checkbox name=threading id=threading> <label for=threading>Threading</label>
<input type=checkbox name=simd id=simd> <label for=simd>SIMD</label>
<input type=checkbox name=checksum id=checksum checked> <label for=checksum>Checksum</label>
</div>
<div>
<button id=bench>Bench!</button>
</div>
<h2>Output</h2>
<progress id=prog value=0 max=100 disabled></progress>
<div id=output></div>
<script src="lib/ogv.js"></script>
<script type="text/javascript">
// crc32 table lifted shamelessly from MSDN docs
// https://msdn.microsoft.com/en-us/library/dd905031.aspx
const crc32_table = new Int32Array([
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
]);
class crc32 {
constructor() {
this.crc = -1;
}
update(bytes) {
let crc = this.crc;
for (let i = 0; i < bytes.length; i++) {
crc = crc32_table[(crc & 0xff) ^ (bytes[i])] ^ (crc >> 8);
}
this.crc = crc;
}
finalize() {
return this.crc ^ -1;
}
}
let next = null;
function nextTick(callback) {
if (typeof setImmediate === 'function') {
next = callback;
setImmediate(() => {
let was = next;
next = null;
if (was) {
was();
}
});
} else {
// we have a polyfill already
throw new Error('need setImmediate');
}
}
function log(msg) {
var line = document.createElement('div');
line.textContent = msg;
document.getElementById('output').appendChild(line);
}
let hex_digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'];
function hexByte(n) {
return hex_digits[n >> 4] + hex_digits[n & 3];
}
function hex32(n) {
return hexByte(n & 0xff) +
hexByte((n >> 8) & 0xff) +
hexByte((n >> 16) & 0xff) +
hexByte((n >> 24) & 0xff);
}
function decodeFile(filename, ondone) {
log('opening ' + filename);
let threading = document.getElementById('threading').checked;
var player = new OGVPlayer({
wasm: document.getElementById('wasm').checked,
worker: document.getElementById('worker').checked,
threading: threading,
simd: document.getElementById('simd').checked,
});
let eof = false;
let buf;
let decoder;
let demuxer;
let frames = 0;
let start = Date.now();
let checkin = 24;
let last = 0;
let lastFrames = 0;
let checksum = new crc32();
let framesInFlight = 0;
let framesBuffered = threading ? (navigator.hardwareConcurrency + 1) : 1;
function updateChecksumRow(row) {
checksum.update(row);
}
function updateChecksumPlane(w, h, plane) {
var bytes = plane.bytes;
var stride = plane.stride;
for (var y = 0; y < h; y++) {
var start = y * stride;
updateChecksumRow(bytes.subarray(start, start + w));
}
}
function updateChecksum(frame) {
var format = frame.format;
updateChecksumPlane(format.width, format.height, frame.y);
updateChecksumPlane(format.chromaWidth, format.chromaHeight, frame.u);
updateChecksumPlane(format.chromaWidth, format.chromaHeight, frame.v);
}
function getData(callback) {
var bufsize = 65536;
var stream = player._stream;
stream.read(bufsize).then(function(buf) {
if (stream.eof) {
eof = true;
}
demuxer.receiveInput(buf, callback);
}).catch(function(e) {
log(e);
});
}
function nextFrame() {
while (demuxer.audioReady) {
demuxer.dequeueAudioPacket((packet) => {});
}
if (framesInFlight >= framesBuffered) {
return;
}
if (demuxer.frameReady) {
var timestamp = demuxer.frameTimestamp;
let async = true;
demuxer.dequeueVideoPacket((packet) => {
frames++;
let frameNo = frames;
framesInFlight++;
decoder.processFrame(packet, (ok) => {
if (ok) {
const now = Date.now();
const delta = (now - last) / 1000;
if (frames % checkin == 0) {
//const fps = (frames - lastFrames) / delta;
//log(fps + ' fps decoding');
lastFrames = frames;
last = now;
var prog = document.getElementById('prog');
prog.value = 100 * timestamp / demuxer.duration;
}
if (document.getElementById('checksum').checked) {
updateChecksum(decoder.frameBuffer);
}
}
if (--framesInFlight < framesBuffered) {
nextTick(processData);
}
async = false;
});
});
if (async && framesInFlight < framesBuffered) {
nextTick(processData);
}
} else {
nextTick(processData);
}
}
function processData() {
if (demuxer.frameReady) {
nextFrame();
} else {
demuxer.process((more) => {
if (more) {
nextTick(processData);
} else if (eof && framesInFlight) {
decoder.sync();
nextTick(processData);
} else if (eof && !framesInFlight) {
log('done and done');
var delta = (Date.now() - start) / 1000;
var fps = frames / delta;
log(fps + ' fps decoding average');
log(delta + ' seconds total (elapsed)');
var delta2 = decoder.cpuTime / 1000;
log(delta2 + ' seconds total (codec only)');
if (document.getElementById('checksum').checked) {
var hex = hex32(checksum.finalize());
log('crc32 checksum: ' + hex);
}
// end!
ondone();
} else {
nextTick(() => {
getData(processData);
});
}
});
}
}
player.src = filename;
player.load();
player.onloadedmetadata = function() {
start = Date.now();
demuxer = player._codec.demuxer;
decoder = player._codec.videoDecoder;
log('loaded; codec is ' + demuxer.videoCodec);
getData(processData);
};
}
document.querySelector('#bench').addEventListener('click', function() {
var bench = this;
var prog = document.getElementById('prog');
bench.disabled = true;
prog.disabled = false;
var filename = document.querySelector('#url').value;
document.getElementById('output').innerHTML = '';
log('starting');
log('ogv.js ' + OGVVersion);
decodeFile(filename, function() {
prog.value = 100;
prog.disabled = true;
bench.disabled = false;
});
});
</script>
</body>
</html>