Incorporate an Animation into a picture or a Video

Anouar El Jouhari Do you have an example of what you're trying to achieve so we can provide further recommendations? 

In general, you will need to bring the animation into a creative software like Blender. Or you can use a video editing software like Final Cut Pro and use the .mp4 output to edit it into a scene. Please let us know what your end goal is and we can provide further recommendations.