user14358: How can I use ffmpeg to composite a video image with a still image to create a final image such as the one below (where the video image "plays" on the large screen and the still image creates the illusion of a theatrical audio environment)?


user16099: Asked and answered : How can encode video with images like these (overlay a video over a fixed image) with ffmpeg?
But you want to add coordinates to the movie file to scale to a specific area.
For the perspective/scale:
https://ffmpeg.org/ffmpeg-filters.html#toc-perspective
For the overlay:
https://ffmpeg.org/ffmpeg-filters.html#toc-overlay-1

14358: <p>How can I use ffmpeg to composite a video image with a still image to create a final image such as the one below (where the video image "plays" on the large screen and the still image creates the illusion of a theatrical audio environment)?</p>

<p><a href="https://i.stack.imgur.com/uAo2V.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uAo2V.jpg" alt="enter image description here"></a></p>
 16099: <p>Asked and answered : <a href="https://video.stackexchange.com/questions/18170/how-can-encode-video-with-images-like-these-overlay-a-video-over-a-fixed-image">How can encode video with images like these (overlay a video over a fixed image) with ffmpeg?</a></p>

<p>But you want to add coordinates to the movie file to scale to a specific area.</p>

<p>For the perspective/scale:
<a href="https://ffmpeg.org/ffmpeg-filters.html#toc-perspective" rel="nofollow noreferrer">https://ffmpeg.org/ffmpeg-filters.html#toc-perspective</a></p>

<p>For the overlay:
<a href="https://ffmpeg.org/ffmpeg-filters.html#toc-overlay-1" rel="nofollow noreferrer">https://ffmpeg.org/ffmpeg-filters.html#toc-overlay-1</a></p>
