Use a 1k buffer for sniffing image formats, instead of 128 or 256 bytes.

Use a 1k buffer for sniffing image formats, instead of 128 or 256 bytes.

2005-10-03  Matthias Clasen  <mclasen@redhat.com>

	* gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file):
	* gdk-pixbuf-io.c (gdk_pixbuf_new_from_file):
	* gdk-pixbuf-loader.c: Use a 1k buffer for sniffing image formats,
	instead of 128 or 256 bytes.  (#317225, Sebastien Bacher,
	Dom Lachowicz)