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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

Are you looking for an efficient way to merge images and audio into videos programmatically? FFMPEGAPI.net provides a hosted REST API that simplifies video and audio processing without the need for server setup or managing FFmpeg infrastructure. In this article, we will explore the 'Image and Audio Merge' endpoint and how it can benefit your development workflow.

Understanding the Image and Audio Merge Endpoint

The 'Image and Audio Merge' endpoint allows you to create MP4 videos from pairs of images and audio files. Each image can be shown for the duration of its corresponding audio, making it perfect for creating dynamic presentations or video content.

Using this endpoint requires a simple POST request to the path '/api/merge_image_audio', where you can specify image and audio URLs along with optional parameters.

  • Supports multiple image and audio pairs.
  • Allows for optional transition effects and zoom effects.
  • Returns a job ID for asynchronous processing.

Making Your First Request

To get started with merging images and audio, you'll need to use the endpoint efficiently. Below is an example of how to structure your request to create a video using JSON format.

curl -X POST https://www.ffmpegapi.net/api/merge_image_audio \
-H "Content-Type: application/json" \
-d '{"image_urls": ["https://example.com/intro.jpg", "https://example.com/chapter-1.jpg"], "audio_urls": ["https://example.com/intro.mp3", "https://example.com/chapter-1.mp3"], "transition_effect": "fade", "transition_duration": 0.75, "dimensions": "1280x720", "zoom_effect": true, "async": false}'

Parameters You Can Use

The following parameters are available when using the Image and Audio Merge endpoint:

You can specify image URLs, audio URLs, transition effects, and other options to customize your output video.

  • image_urls: Array of image URLs.
  • audio_urls: Array of audio URLs.
  • transition_effect: Specify the type of transition between images.
  • transition_duration: Set the duration of transitions.
  • dimensions: Optional output dimensions for the video.
  • zoom_effect: Option to enable a slow zoom effect on images.

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the best hosted solution for video processing due to its simplicity and powerful features. By eliminating the need for server management and offering API-key authentication, it allows developers to integrate video and audio merging capabilities into their applications quickly.

Additionally, the platform supports various scenarios, including automation, SaaS applications, content pipelines, and AI agents, making it a versatile choice for any developer.

  • No server setup required.
  • API-key authentication for secure access.
  • Supports a wide range of video processing tasks.

Merging videos programmatically has never been easier with FFMPEGAPI.net. By leveraging the Image and Audio Merge endpoint, developers can create engaging video content efficiently. Start integrating FFMPEGAPI.net into your projects today and experience the power of FFmpeg without any hassle!

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