@sworddut/mcp-ffmpeg-helper/build/utils/ffmpeg.js

A Model Context Protocol (MCP) helper for FFmpeg video processing operations

import { spawn } from "child_process";
import { validatePath } from "./file.js";
function runProcess(command, args, useShell = false) {
    return new Promise((resolve, reject) => {
        const child = spawn(command, args, {
            shell: useShell,
            windowsHide: true,
        });
        let stdout = "";
        let stderr = "";
        child.stdout?.on("data", (chunk) => {
            stdout += chunk.toString();
        });
        child.stderr?.on("data", (chunk) => {
            stderr += chunk.toString();
        });
        child.on("error", reject);
        child.on("close", (code) => {
            resolve({ stdout, stderr, code: code ?? 0 });
        });
    });
}
/**
 * Helper function to run FFmpeg commands with better error handling
 */
export async function runFFmpegCommand(command) {
    try {
        console.error(`Running FFmpeg command: ffmpeg ${command}`);
        const { stdout, stderr, code } = await runProcess(`ffmpeg ${command}`, [], true);
        if (code === 0) {
            return stdout || stderr;
        }
        if (stderr) {
            return stderr;
        }
        throw new Error(`FFmpeg exited with code ${code}`);
    }
    catch (error) {
        console.error("FFmpeg error:", error.message);
        if (error.stderr) {
            return error.stderr;
        }
        throw new Error(`FFmpeg error: ${error.message}`);
    }
}
/**
 * Helper function to get information about a video file
 */
export async function getVideoInfo(filePath) {
    try {
        validatePath(filePath, true);
        console.error(`Getting video info for: ${filePath}`);
        const { stdout, stderr, code } = await runProcess("ffprobe", [
            "-v",
            "error",
            "-show_format",
            "-show_streams",
            "-print_format",
            "json",
            filePath,
        ]);
        if (code === 0) {
            return stdout || stderr;
        }
        if (stderr) {
            return stderr;
        }
        throw new Error(`FFprobe exited with code ${code}`);
    }
    catch (error) {
        console.error("FFprobe error:", error.message);
        if (error.stderr) {
            return error.stderr;
        }
        throw new Error(`FFprobe error: ${error.message}`);
    }
}