[FFmpeg-user] Region of Interest Coding in ffmpeg
yangguo47 at gmail.com
Tue Nov 12 23:19:39 CET 2013
Hi ffmpeg community,
I am looking to encode a frame with "region of interest (ROI)" coding. The
idea is that I have a frame in which I know that certain regions (for
example, the center) are more likely to be the subject of interest relative
to other regions (ex: the sides). My thought was to use macroblock-level
quantization stepsize (QP). How can I achieve this with ffmpeg from the
Moreover, ideally I would like to specify a different ROI for each frame.
How can this be done?
Thanks for your help in advance!
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