---
title: "How to merge all frame images in video file in C#?"  
description: "How to merge all frame images in video file in C#?"  
author: "Anubhav Sharma"  
published: 2025-02-09  
updated: 2025-02-10  
canonical: https://www.mindstick.com/forum/161150/how-to-merge-all-frame-images-in-video-file-in-c-sharp  
category: "c#"  
tags: ["c#", ".net core"]  
reading_time: 2 minutes  

---

# How to merge all frame images in video file in C#?

How to [merge](https://www.mindstick.com/startup/15/how-growthpal-helps-companies-make-the-right) all [frame](https://www.mindstick.com/articles/749/html-frames) [images](https://www.mindstick.com/interview/1067/what-is-the-php-predefined-variable-that-tells-the-what-type-of-images-that-php-support) in [video](https://www.mindstick.com/articles/290133/6-necessary-preparations-you-need-before-editing-a-video) [file in C#](https://www.mindstick.com/forum/159903/how-to-create-a-log-file-in-c-sharp)?

## Replies

### Reply by Ravi Vishwakarma

`FFmpeg` is the best option for merging images into a video.

## Steps:

1. Install **FFmpeg** from ffmpeg.org.
2. Ensure all frames are named in a sequential format (e.g., `frame_0001.jpg`, `frame_0002.jpg`, etc.).
3. Run the FFmpeg command from C#.

####

#### C# Code Using FFmpeg

```cs
using System;
using System.Diagnostics;
class Program
{
    static void Main()
    {
        string framesFolder = "Frames";  // Folder containing extracted frames
        string outputVideo = "output.mp4"; // Output video file
        string frameRate = "30";  // Adjust frame rate as needed

        string ffmpegCmd = $"-framerate {frameRate} -i \"{framesFolder}/frame_%04d.jpg\" -c:v libx264 -pix_fmt yuv420p \"{outputVideo}\"";

        ProcessStartInfo processInfo = new ProcessStartInfo
        {
            FileName = "ffmpeg",
            Arguments = ffmpegCmd,
            RedirectStandardOutput = true,
            UseShellExecute = false,
            CreateNoWindow = true
        };

        Process process = new Process { StartInfo = processInfo };
        process.Start();
        process.WaitForExit();

        Console.WriteLine("Video created successfully.");
    }
}
```

## How It Works?

- `-framerate 30`: Sets video frame rate to 30 FPS.
- `-i "Frames/frame_%04d.jpg"`: Reads images in sequence (`frame_0001.jpg`, `frame_0002.jpg`).
- `-c:v libx264 -pix_fmt yuv420p`: Encodes using **H.264 codec**.
- Creates `output.mp4`.

## Pros:

1. Very fast
2. High-quality video output
3. Supports multiple formats (MP4, AVI, etc.)


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Original Source: https://www.mindstick.com/forum/161150/how-to-merge-all-frame-images-in-video-file-in-c-sharp

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