Hi, all, currently I am hitting a wall with ffmpeg and I would like to dive a little bit into mlt, especially the python binding is an interesting area for me to explore. However, it is a bit hard to find good examples, so I would like to ask for pointers - are there good tutorials, collections of scripts and examples, or some more docs? Yes, I found the website, looks like the documentation is more kind of a reference and I am not at that level right know, I need some starters. I am reading it, but I am having a hard time finding examples for my usecase.
Please allow me to ask some naive questions: * when using the melt tool, will this use ffmpeg (as library or however) to encode videos? I am asking this because I would like to know if I can expect the same results regarding encoding speed and quality. * is there a possiblity to use an editor like kdenlive (or anything else, like e.g. openshot) to prepare a (simple) xml file and to use this for an automated workflow with python? So I could prepare some tracks manually and then use the saved session as a template for batch processing lots of videos? I am looking for a better way to automate my existing workflow of editing videos. Currently I use a small set of bash scripts and a bit of python to assemble pictures, gradients, text and movies with imagemagick and ffmpeg. This is not very complicated, mostly putting some overlays on existing video footage, but things could be easier, trying to do too much with the ffmpeg command line tool makes things complicated - it is a brilliant tool and encoder, but I am constantly expanding the feature set of my little encoding pipeline and would like to do everything in a more reusable and extendable way, preferably with python, so I can easier connect to some data extraction and visualization tools, which are perfectly available in python land. It would be a dream to have all the features of a full blown editor available in python, it looks like this must be possible with mlt, but I can not find a way into it. May I ask for an example of how to create a video with image overlays, but the images should have a fade in and out? Please imagine a video of a speaker showing some slides - I am converting the slides via unoconvert + imagemagick and then using the overlay filter with ffmpeg, but this gets really ugly if I would like to have fade-in and fade-out on the slide overlays, and adding some more things like a logo, text, moving elements, data vizualisations makes this a really uncomfortable ffmpeg monster command line assembly fight... how could this be achieved with the mlt framework, either by using melt or python bindings? A completely different issue is about live mixing. I would love to see an example of how to mix two live video inputs (firewire or any other device) - will this work with python or will it be too slow? I have a little bit of experience with QT, so this might be an alternative, but I need to see some examples to get some understanding of how this could be done. I imagine a simple application that shows video inputs and allows some basic manipulation like color correction, overlays, sound adjustment and of course mixing everything together and saving it in good quality. No full blown VJ console, just some basic live mix tool - does such a thing exist (built with mlt, of course, yes, it exists for other platforms than linux, I know, but I would like to have it scriptable... well, that might be enough for a little appetizer... :) Thank you very much for your attention, have a nice day, John ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
