I've been looking a little more into this project I have in mind. Generally speaking, I want to take an input movie, process it (generally by adding overlays to the video, but possibly any other processing QC can do), and write it to a new movie file. I want to pass audio through unaltered.
It seems more and more evident that I'm going to have to write my own app to host the composition. I imagine a simple app that allows me to choose a composition, an input movie, and specify an output movie filename. It would then process the input movie as described above. Can someone tell me, in high-level terms, how I would do this? A QCRenderer seems obviously necessary. I saw a sample app that exports TIFF files for each frame, perhaps I can start with that and create an H.264 movie (would I use CoreVideo for that?). I suppose the best thing is to synchronously process the input movie, controlling the time base, but I'm not sure how to do that; the end result I want is to process each frame of the input movie separately. I also suppose my little host app will have to separately extract the audio of the input movie file and add it to the output movie file. Any suggestions on how to proceed would be much appreciated. If there's some obvious and simple way to do this that I'm unaware of, please let me know. Thanks! -- Rick _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
