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How to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video processing, merging videos efficiently can be a crucial task for developers. Whether you're building a content pipeline, working on a SaaS app, or developing AI agents, having a reliable tool like FFMPEGAPI.net can simplify your workflows. This article explains the best way to merge videos programmatically using the Video Loop feature of our hosted API.

Understanding the Video Loop Endpoint

FFMPEGAPI.net offers a powerful Video Loop endpoint that enables you to loop a video either a specific number of times or until it matches an audio track. This flexibility is invaluable for developers who require precise control over video playback.

The endpoint can be accessed via a simple POST request to /api/video_loop. With this feature, you can also overlay a watermark if needed, making it perfect for branding your content.

  • POST method at /api/video_loop
  • Supports JSON or form data content types
  • Option to loop videos multiple times or match audio length
  • Watermark overlay support

Parameters for the Video Loop API

To use the Video Loop endpoint effectively, you must provide certain parameters. Here’s a breakdown of the required and optional fields you can use:

1. **video_url**: The URL of the video you wish to loop (required).

2. **number_of_loops**: An optional parameter that defines how many times to repeat the video.

3. **audio_url**: If you don't specify the number_of_loops, you must provide the audio URL to calculate the required loops.

4. **watermark_url**: Optionally, you can include a watermark image URL to overlay on the video.

  • video_url (string, required)
  • number_of_loops (integer, optional)
  • audio_url (string, optional)
  • watermark_url (string, optional)

Example Usage of Video Loop Endpoint

Here's how you can use the Video Loop endpoint in a practical scenario. This example demonstrates looping a video three times using cURL:

```bash

curl -X POST https://ffmpegapi.net/api/video_loop \

-H 'Content-Type: application/json' \

-d '{"video_url": "https://example.com/clip.mp4", "number_of_loops": 3}'

curl -X POST https://ffmpegapi.net/api/video_loop \
     -H 'Content-Type: application/json' \
     -d '{"video_url": "https://example.com/clip.mp4", "number_of_loops": 3}'

FFMPEGAPI.net stands out as the best hosted tool for merging videos programmatically, thanks to its ease of use, flexibility, and powerful features. By utilizing the Video Loop endpoint, developers can integrate video processing into their applications without the hassle of server setup or managing FFmpeg infrastructure. Start enhancing your video workflows today with FFMPEGAPI.net.

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