[Ffmpeg-devel] Joining Multiple Input Streams

Michel Bardiaux mbardiaux
Mon Aug 1 16:36:21 CEST 2005

Brad wrote:
> First of all, is there any plan to add such a feature into ffmpeg?

What do you mean exactly by 'join'? What kind of 'multiple input 
streams'? Are they supposed to occur one after the other (i.e. join 
meaning concatenate) or simultaneously (join means muxing).

If one after the other: then some formats are can be simply 
concatenated, like MPEG-1 and MPEG-2. For some others there exist 
special tools like avijoin.

If simultaneously: then ffmpeg can already mux 1 audio and 1 video stream.

> Second, if no one planned on doing this, could someone give me some
> information on what all would have to be done in order to add this?
> Being able to join Input streams into one output stream would definitely be
> a nice feature to have IMO. . .
> --Brad

Michel Bardiaux
R&D Director
MediaXim S.A.  Bd. du Souverain, 191  B-1160 Bruxelles
Tel : +32 2 790.29.41

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