Merge views with an existing video

I want to merge a view with an already existing video and get a video out of it. An example would be, adding a text with a Textview on a video. This functionality can be seen by many social media apps like tik tok and instagram.

How are they doing that, someone got an idea? Currently I just have a Textview and a ScalableVideoView overlayed, but Idk how to merge them into an video.

Can you still merge videos in YouTube?

Merge Your YouTube Videos, Online Do you have a bunch of video clips you need to combine and upload to YouTube? Now you can use VEED's simple online YouTube video combiner. Use our simple video editor to edit your YouTube videos combine, cut, crop, add text and more!

What does it mean to merge a video?

Merging videos occurs when you combine two or more clips to make one cohesive video.

I think that you can achieve that using "ffmpeg" to generate a new video using an image/video overlay.

Check this post talking about this tool:ffmpeg

If you want to use ffmpeg on Android follow this link to build and call it from Android with JNI: ffmpeg on Android

source of ffmpeg: source

Hope it helps.