Is there any way to find credits range of a movie with an avisynth script ? Perhaps something based on average luma distibution for instance ? Assuming credits are white characters on black screen, one can search for frames where pixs with 40<luma<220 are near zero for instance and retaining the longest block of them as beeing the credits range. Would it be reliable ? Really I'm very confused at how this can be achieved :( Thanks for your help.

such functions (finding credits, ads,...) would be quite slow and unreliable too (the whole video would be read)

Does it bother you to make it manually?! make a normal avs, open it in VirtualDub, see on which frame the credits begin Return to your avs file, add a trim line just after the mpeg2source line, kinda: trim(0,150500) Encode the credits separately at a fixed quantizer like 12. To do that, make another avs script with the following trim line, kinda: trim(150501,0)

Thanks but I know how to encode credits manually :D If you follow links in my signature you'll find I'm writing a all in one app so that such a feature would be great. Actually I solved much much problems and tool is functionnal, but such a feature would a valuable add :) regards

There should be a way to figure out a script based on the new conditional functions. I don't have the slightest clue as to how to get started though.

If you can assume a min credit length scanning would be MUCH faster (scan only every 25th frame e.g.) Possible algo as you proposed (black and white with a sharp histogram e.g.)

Algorithm would have to find vertical scrolling frames with very few colours... of course a Star Wars intro would be considered a credit then :D Bilu