Hi. I finally have some tome to go at this again. Totalizing this thread, the previous discussions and the few private mails I received, I conclude there is significant more support than opposition to AVWriter, so I am moving forward with polishing and pushing the implementation. (To avoid antagonizing people, and because I knew a new job would mean little time to work on it soon, I refrained from pushing the header, but consider it done anyway: the fact that the implementation of AVWriter is not present in FFmpeg is now a bug that needs to be fixed.) Regards, -- Nicolas George