Re: how can i scale big pixbuf in realtime?

[Mike Massonnet <mmassonnet gmail com>]

Le Mon, 6 Oct 2008 16:13:25 +0800,
"chen zhixin" <thexin1985 gmail com> a écrit :

> hello
> i have to scale the image i recived,NTSC,30f/s,yuyv->gray and 720*480
> because i need to do something on image,so i use gray->pixmap,and use
> cairo_t to do .
> then i must scale the 720*480,
> use gdk_pixbuf_scale make cpu to 100%.
> 
> is there a better way to do this?
> thanks

The better way would be gstreamer.  Now the question is can you receive
the image inside gstreamer?  Then you can build a pipeline with
gstreamer elements.

filesrc would be a start, then I don't know how to manipulate an
image.  There are other elements that may be interesting
like gdkpixbufscale, gdkpixbufsink, and gdkpixbufdec.

Look forward for gstreamer.

My 2 cents,
Mike