> > However, by a quick search on ?PBM utilities?, I gather they are programs, > > not functions or a library at all. This is not what I?m aiming at. > > What's wrong with programs? It fits into the "Unix way" of doing things: > small programs that do one thing and do them well. It's very much overhead to fork off a programm every time and copy stuff throuth pipes. Especially if you are talking about video and multiple MB/s data rates. Guess why people don't do video editing with shell scripts? ObLibrary: People who downloaded a fresh xawtv version recently might have noticed the new libng subdirectory where I've started to separate out my capture/conversion code... Gerd -- Gerd Knorr <kraxel@xxxxxxxxxxx> -- SuSE Labs, Außenstelle Berlin