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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
/*global MP4Demuxer b:true*/
const kTotalFrames = 100;
let start;
let frameCount;
function runTestInternal(
testName,
canvasType,
canvas,
isWorker,
videoUri,
resolve,
reject
) {
const runContext = isWorker ? "worker" : "main";
dump(
"[" +
canvasType +
" webcodecs " +
runContext +
"] load video '" +
videoUri +
"'\n"
);
let drawImage;
if (canvasType == "2d") {
const ctx = canvas.getContext("2d");
drawImage = function (frame) {
ctx.drawImage(frame, 0, 0);
};
} else if (canvasType == "webgl") {
const gl = canvas.getContext("webgl");
gl.bindTexture(gl.TEXTURE_2D, gl.createTexture());
drawImage = function (frame) {
gl.texImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
gl.RGBA,
gl.UNSIGNED_BYTE,
frame
);
};
} else {
dump("[" + canvasType + " webcodecs " + runContext + "] unknown type\n");
reject("unknown type " + canvasType);
return;
}
frameCount = 0;
const decoder = new VideoDecoder({
output(frame) {
if (frameCount == 0) {
start = performance.now();
}
++frameCount;
dump(
"[" +
canvasType +
" webcodecs " +
runContext +
"] draw frame " +
frameCount +
"\n"
);
drawImage(frame);
frame.close();
if (frameCount == kTotalFrames) {
var elapsed = performance.now() - start;
setTimeout(() => {
resolve({ testName, elapsed, totalFrames: kTotalFrames });
}, 0);
dump(
"[" + canvasType + " webcodecs " + runContext + "] close decoder\n"
);
decoder.close();
}
},
error(e) {
dump(
"[" +
canvasType +
" webcodecs " +
runContext +
"] decoder error " +
e +
"\n"
);
decoder.close();
reject(e);
},
});
new MP4Demuxer(videoUri, {
onConfig(config) {
dump(
"[" + canvasType + " webcodecs " + runContext + "] demuxer config\n"
);
decoder.configure(config);
},
onChunk(chunk) {
dump("[" + canvasType + " webcodecs " + runContext + "] demuxer chunk\n");
decoder.decode(chunk);
},
setStatus(msg) {
dump(
"[" +
canvasType +
" webcodecs " +
runContext +
"] demuxer status - " +
msg +
"\n"
);
},
});
}