[MEncoder-users] Is it possible to define different compression factors on the same frame?

RC cooleyr at gmail.com
Fri Jan 15 04:45:49 CET 2010


On Thu, 14 Jan 2010 21:41:55 -0200
Camila Acolide <camila.acolide at gmail.com> wrote:

> The problem is: after the strong compression, the date/hour
> information on the image is completely unreadable.

Try *cmp=2, that will much better preserve sharp edges.  Also, perhaps
increasing tcplx_mask will help.

If you're using x264, try nodeblock for starters.

> Is it possible to define an area around the date/time information to
> encode it with low compression while the rest of the frame is highly
> compressed?

There's certainly no interface to do that right now.  vrc_override
is about as close as you'll get to an example if you want to write the
functionality into libavcodec.

-- 
Ha. I'm the idiot.


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