notes

TODO

@@ -1,3 +1,13 @@
+- think of a better way to support skipahead
+
+  extract needs to hint to it's image sources what line it will start reading
+  at 
+
+  in vips_extract_build(), call vips_image_set_start(), somehow sends a signal
+  the wrong way down the pipe to the vips_sequential() (if there is one)
+  telling it not to stall the first request if it's for that line
+
+
 
 - ink to vec etc must have a way to give a complex constant