[FFmpeg-devel] [PATCH] libavfilter-soc: implement pad filter

Stefano Sabatini stefano.sabatini-lala
Sun May 10 00:30:00 CEST 2009

On date Tuesday 2009-05-05 20:49:55 +0200, Vitor Sessak encoded:
> Stefano Sabatini wrote:
>> On date Tuesday 2009-04-28 22:03:53 +0200, Stefano Sabatini encoded:
>> In order to be memcpy-less we need some API redesign, I started to
>> look at it and I'm thinking about to put in the link other fields (x,
>> y, w_exp, and h_exp).
> Why in the link and not as a parameter of request_frame() as suggested  
> by Michael [1]?

|What effect would that have on a decoder changing the output image size?
|Also what about 
|- int (*request_frame)(AVFilterLink *link);
|+ int (*request_frame)(AVFilterLink *link, int width, int height, int left, int top);
|where left/top is extra memory being allocated ...

Would that also require a corresponding change in avfilter_draw_slice():
avfilter_draw_slice(AVFilterLink *link, int left, int top);

or am I completely misled?

FFmpeg = Freak and Fiendish Mere Philosophical Elegant God

More information about the ffmpeg-devel mailing list