Constant bitrate for tiles

[21praveen]

Is there a way to ensure constant bitrate for tiles in mv-constraint frametilemargin encoding? The variable bitrates are adversely affecting the rate adaptation.

[Arizer]

Hi, have you tried using the --bitrate option?

[21praveen]

I am using --bitrate. But at tiles levels, the bitrates are different (after segmentation using GPAC MP4Box).

[Arizer]

I looked at the code, it looks like the bit allocation is made currently only on frame level as you implied. I don't think there is a reasonable way to ensure uniform bitrate between tiles at the moment. Implementing this would be fairly simple but I can't promise anything.