[FFmpeg-user] Region of interest in ISOBMFF?

[Bruce Gavin]

 I have an interest in this as well.
I would like to embed a 480p video frame into the center of a black 4k video frame.
The intent is presenting 4k to a 4k TV set and avoid upscaling.

Most TV do a terrible job of upscaling low res 480P, either DVD or over the air.
This would present a small image in the center of the 4k screen, but without the upscaling degradation of quality.

Q:  is this possible, theory or practice?

    On Thursday, August 8, 2024 at 04:17:38 AM PDT, Phil Rhodes via ffmpeg-user <ffmpeg-user at ffmpeg.org> wrote:  
 
 Hello
This is not directly an ffmpeg question, but this seemed like a reasonable place to ask.
Is there any common approach to encoding a region of interest - that is, a rectangular area of the frame - as metadata into an ISOBMFF, that is, essentially a QuickTime or MP4 movie file?
I'm aware that some approaches to this have been invented for various applications, but not if there is any widely-recognised standard for it.
P
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user at ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".