mcopy/lib/ffprobe/index.js

103 lines
2.5 KiB
JavaScript

'use strict';
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs = __importStar(require("fs-extra"));
const exec = __importStar(require("exec"));
//const spawn = require('spawn');
//const exit = require('exit');
let system = {};
async function info(video) {
let cmd = `ffprobe -v quiet -print_format json -show_format -show_streams "${video}"`;
let exists;
let raw;
let json;
let vid;
try {
exists = await fs.exists(video);
}
catch (err) {
return exit(err, 5);
}
if (!exists) {
//return exit(`File ${video} does not exist`, 6);
console.error(new Error(`File ${video} does not exist`));
return false;
}
try {
console.log(cmd);
raw = await exec(cmd);
}
catch (err) {
//return exit(err, 7);
console.error(err);
return false;
}
try {
json = JSON.parse(raw.stdout);
}
catch (err) {
return raw.stdout;
}
if (json && json.streams) {
vid = json.streams.find((stream) => {
if (stream.width && stream.height)
return stream;
});
}
if (vid) {
json.width = vid.width;
json.height = vid.height;
}
return json;
}
async function frames(video) {
let cmd = `ffprobe -v error -count_frames -select_streams v:0 -show_entries stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1 "${video}"`;
let exists;
let raw;
let frames;
try {
exists = await fs.exists(video);
}
catch (err) {
//return exit(err, 5);
console.error(err);
return false;
}
if (!exists) {
//return exit(`File ${video} does not exist`, 6);
console.error(new Error(`File ${video} does not exist`));
return false;
}
try {
console.log(cmd);
raw = await exec(cmd);
}
catch (err) {
console.error(err);
return false;
}
try {
frames = parseInt(raw.stdout);
}
catch (err) {
return raw.stdout;
}
return frames;
}
function map(obj) {
console.dir(obj);
}
module.exports = (sys) => {
system = sys;
return {
info,
frames
};
};
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