n8n-nodes-ffmpeg-features
Version:
Wrapper for various operations with FFMPEG
102 lines • 4.14 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.execute = void 0;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const os = __importStar(require("os"));
const childProcess = __importStar(require("child_process"));
async function execute(items) {
const returnData = [];
for (let i = 0; i < items.length; i++) {
const item = items[i];
if (!item.binary)
continue;
const binaryKeys = Object.keys(item.binary);
if (!binaryKeys.length)
continue;
const binaryKey = binaryKeys[0];
const binaryData = item.binary[binaryKey];
if (!(binaryData === null || binaryData === void 0 ? void 0 : binaryData.data))
continue;
const extension = path.extname(binaryData.fileName || '') || '.mp4';
const tempFilePath = path.join(os.tmpdir(), `ffinfo_${Date.now()}_${Math.random().toString(36).slice(2)}${extension}`);
fs.writeFileSync(tempFilePath, Buffer.from(binaryData.data, 'base64'));
const cmd = `ffprobe -v quiet -print_format json -show_format -show_streams "${tempFilePath}"`;
let ffprobeOutput;
try {
ffprobeOutput = childProcess.execSync(cmd, { encoding: 'utf-8' });
}
catch (error) {
if (fs.existsSync(tempFilePath))
fs.unlinkSync(tempFilePath);
throw new Error(`FFprobe error: ${error}`);
}
fs.unlinkSync(tempFilePath);
let info;
try {
info = JSON.parse(ffprobeOutput);
}
catch (parseError) {
throw new Error(`Could not parse ffprobe JSON output: ${parseError}`);
}
const formatBlock = info.format || {};
const durationStr = formatBlock.duration || '0';
const duration = parseFloat(durationStr);
const sizeStr = formatBlock.size || '0';
const size = parseInt(sizeStr, 10);
const bitRateStr = formatBlock.bit_rate || '0';
const bitRate = parseInt(bitRateStr, 10);
const formatName = formatBlock.format_name || 'unknown';
let streams = [];
if (Array.isArray(info.streams)) {
streams = info.streams.map((stream) => ({
index: stream.index,
codec_type: stream.codec_type,
codec_name: stream.codec_name,
width: stream.width || null,
height: stream.height || null,
sample_rate: stream.sample_rate || null,
channels: stream.channels || null,
bit_rate: stream.bit_rate || null,
duration: stream.duration || null,
}));
}
returnData.push({
json: {
fileName: binaryData.fileName,
formatName,
duration,
size,
bitRate,
streams,
},
pairedItem: { item: i },
});
}
return returnData;
}
exports.execute = execute;
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