Editly not working, trying ffmpeg concat demuxer

master
Kuba Orlik 5 years ago
commit 17d59d4885

2
.gitignore vendored

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/node_modules/
*.mp4

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ffmpeg -i odcinek1-kuba.wav -ac 1 -filter:a aresample=8000 -map 0:a -c:a pcm_s16le -f data - | hexdump
^ daje waveform w dwubajtowych intach

2353
package-lock.json generated

File diff suppressed because it is too large Load Diff

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{
"name": "vizualizer",
"version": "1.0.0",
"description": "ffmpeg -i odcinek1-kuba.wav -ac 1 -filter:a aresample=8000 -map 0:a -c:a pcm_s16le -f data - | hexdump",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"devDependencies": {
"@types/node": "^14.0.1"
},
"dependencies": {
"editly": "^0.3.0"
}
}

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{
"compilerOptions": {
"moduleResolution": "node",
"noImplicitAny": true,
"noImplicitThis": true,
"sourceMap": true,
"module": "commonjs",
"target": "es6",
"allowJs": false,
"strictNullChecks": true,
"esModuleInterop": true,
"outDir": "build"
}
}

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const editly = require("editly");
const graph_density = 1000;
const threshold_at_point = 1;
const inertia_s = 0.1;
const inertia_samples = inertia_s * graph_density;
let position = 0;
let last_swap_position = 0;
const s = (n: number) => Math.round(n / graph_density);
const minutes = (units: number) => Math.floor(s(units) / 60);
const formatTime = (units: number) =>
`${minutes(units)}:${Math.floor(s(units) % 60)}`;
let keep_loud_until = 0;
let total_speaking = 0;
const results: [string, number][] = [];
process.stdin.on("readable", () => {
let chunk: Buffer | null;
let was_loud_last_time = false;
while ((chunk = process.stdin.read()) !== null) {
for (let i = 0; i < chunk.byteLength; i++) {
position++;
const byte = chunk[i];
const volume = Math.abs(byte - 128);
const is_loud: boolean =
volume > threshold_at_point || position < keep_loud_until;
if (is_loud) {
total_speaking++;
}
if (is_loud != was_loud_last_time) {
results.push([
is_loud ? "silence" : "speaking",
position - last_swap_position,
]);
last_swap_position = position;
was_loud_last_time = is_loud;
}
if (volume > threshold_at_point) {
keep_loud_until = position + inertia_samples;
}
}
}
});
process.stdin.on("end", () => {
console.log(results);
const spec = {
outPath: "./out.mp4",
width: 800,
height: 600,
fps: 30,
defaults: { transition: { duration: 0 } },
audioFilePath: "/home/kuba/Downloads/odcinek1-kuba.wav",
clips: results.map((e) => ({
duration: s(e[1]),
layers: [
{
type: "title",
text: e[0] === "silence" ? " " : "Kuba Mówi",
position: "center",
},
],
})),
fast: true,
};
console.log(spec);
editly(spec).then(() => console.log("done!"));
console.log(formatTime(total_speaking));
});
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