I have tried to write my own simple downscaler (really simple with no
antialasing filtering etc.) and it's speed is fine, so I think that
won't be
a memory bottleneck
Is its speed faster than any libswscale option?
-r
Yes, its speed is significantly faster than any settings of libswscale
that I have tried.
Eg. following scaling should be relatively fast I think...
sctx = sws_getContext(avctx_i->width, avctx_i->height, PIX_FMT_NV12,
avctx_i->width/2, avctx_i->height/2, PIX_FMT_NV12, SWS_POINT,
NULL, NULL, NULL);
Jan
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