The /video/concat Robot

Transloadit offers a variety of features to reduce video size while maintaining quality, as well as add effects like watermarks.

The /video/concat Robot concatenates several videos together.

Parameters

Name Type Default Description
preset String "flash" Performs conversion using pre-configured settings. If you specify your own FFmpeg parameters using the Robot's ffmpeg parameter and you have not specified a preset, then the default "flash" preset is not applied. This is to prevent you from having to override each of the flash preset's values manually. For a list of video presets, see video presets.

Example use cases

Our /video/concat Robot can be used in combination with other Robots, to create powerful workflows unique to your use case.
Here are a few example scenarios, and the required the Assembly Instructions to implement them.
You can also try demos of these examples right here, live on our website.

Concatenate two video files

{
  "steps": {
    "imported_preroll": {
      "robot": "/http/import",
      "url": "http://static.transloadit.com/crm_demos/shortest_video.mp4"
    },
    "concat": {
      "use": {
        "steps": [
          {
            "name": "imported_preroll",
            "as": "video_1"
          },
          {
            "name": ":original",
            "fields": "test-file",
            "as": "video_2"
          }
        ]
      },
      "robot": "/video/concat",
      "result": true,
      "ffmpeg_stack": "v2.2.3",
      "preset": "ipad"
    }
  }
}

Related blog posts

Over the years we wrote the following posts about Our /video/concat robot on our blog:

Did you know?

You can easily combine Robots to create powerful workflows, unique to your business.
This is the power of Transloadit.