[FFmpeg-devel] Selective video compression qualities

compn tempn at twmi.rr.com
Mon Sep 2 23:02:44 CEST 2013

On Mon, 2 Sep 2013 17:27:33 +0200, Michael Niedermayer wrote:
>On Mon, Sep 02, 2013 at 01:49:08PM +0300, Aviv Hurvitz wrote:
>> Hi all,
>> I am interested in encoding a compressed video of a basketball game,
>> wherein the players are compressed in high quality (high bitrate) and the
>> rest of the image (the crowds, the court) uses a lesser quality. I already
>> have a binary mask that indicates which parts of the video I would like to
>> retain in high quality.
>> I'd be grateful for for any advice on achieving this. Are there any video
>> codecs that support this feature? Which would be the best fit if I want to
>> develop it myself?
>any video codec that can change the QP per MB could be used, that
>means pretty much any modern video codec

i bet he wants to know how to do it :)

isnt that custom matrices? or Quantization Matrix
more info:

pretty complicated, good luck! :)


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