Railway•6mo ago

Error: ffmpeg exited with code 1

Error: ffmpeg exited with code 1 at ChildProcess.<anonymous> (/app/node_modules/.pnpm/fluent-ffmpeg@2.1.2/node_modules/fluent-ffmpeg/lib/processor.js:182:22) at ChildProcess.emit (node:events:517:28) at ChildProcess.emit (node:domain:489:12) at ChildProcess._handle.onexit (node:internal/child_process:292:12) Node.js v18.18.2 I'm currently trying to write an image to a volume using FFMPEG FFMPEG is installed using the railway.json

"nixpacksPlan": {
            "phases": {
                "setup": {
                    "aptPkgs": ["...", "ffmpeg"]
                }
            },
            "providers": ["node"]
        }

"nixpacksPlan": {
            "phases": {
                "setup": {
                    "aptPkgs": ["...", "ffmpeg"]
                }
            },
            "providers": ["node"]
        }

I'm able to write other files to the volume path but ffmpeg fails without any error. Am I not able to write jpgs to disk?

2 Replies

Percy•6mo ago

Project ID: 3f47026d-e5d4-4f7d-8505-9c3c3185adf2

zachHallway•6mo ago

3f47026d-e5d4-4f7d-8505-9c3c3185adf2 Verified that the paths do exist for FFMPEG FFmpeg path: /bin/ffmpeg FFmpeg probe: /bin/ffprobe using execSync("which ffmpeg", { encoding: "utf-8" }).trim();

export function videoToFrames(
    inputFilePath: string,
    outputFilePath: string,
    options: GetFrameOptions,
): Promise<void> {
    const { fps = 1, resolution = "512x512" } = options;

    return new Promise((resolve, reject) => {
        ffmpeg(inputFilePath)
            .outputOptions(`-r ${fps}`)
            .outputOptions(`-s ${resolution}`)
            // .outputOptions("-c:v libwebp") // Specify the WebP codec
            .on("end", () => {
                resolve();
            })
            .on("error", (err) => {
                reject(err);
            })
            .output(`${outputFilePath}/frame_%d.jpeg`) // Specify the output file
            .run();
    });
}

export function videoToFrames(
    inputFilePath: string,
    outputFilePath: string,
    options: GetFrameOptions,
): Promise<void> {
    const { fps = 1, resolution = "512x512" } = options;

    return new Promise((resolve, reject) => {
        ffmpeg(inputFilePath)
            .outputOptions(`-r ${fps}`)
            .outputOptions(`-s ${resolution}`)
            // .outputOptions("-c:v libwebp") // Specify the WebP codec
            .on("end", () => {
                resolve();
            })
            .on("error", (err) => {
                reject(err);
            })
            .output(`${outputFilePath}/frame_%d.jpeg`) // Specify the output file
            .run();
    });
}

Problematic function is here, no crash when there is no output command. Works fine locally in development mode. output file path is path.join(env.RAILWAY_VOLUME_MOUNT_PATH, DATE_SLUG, VIDEO_FILE_NAME) Dang its fixed when adding a nixpacks.toml Thought that the railway.json with the apt-get would work, since it was installing in the docker image.

[phases.setup]
nixPkgs = ['...', 'ffmpeg']

[phases.setup]
nixPkgs = ['...', 'ffmpeg']

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Error: ffmpeg exited with code 1