Cool GStreamer stuff


The Jokosher team continues kicking ass and taking names. The latest updates with screenshots of recent additions is simply amazing. I really hope they are planing on submitting a Jokosher talk for GUADEC today (last day before deadline!) or as a minimum do a Jokosher talk at LUGRadio live.


Tim-Philipp Müller has been reviewing patches and fixing bugs at a high speed in GStreamer for a long time now. I often feel he doesn’t get enough credit for this work as it is a little ‘behind-the-scenes’ kinda stuff. So I was very happy to see that his personal project Thoggen got a positive review on With all the work Tim has been putting in on fixing the DVD and mpeg plugins in GStreamer 0.10 I think a GStreamer 0.10 based Thoggen should be possible in the not so distant future.


Michael Dominic just released his first 0.0.1 release of Diva today along with some really sweet looking demo videos. Thumbs up to Michael for his work so far and especially the work he has put into making such a sweet looking user interface. We are sure to borrow some ideas for that for Pitivi when the time comes to add more bling to the Pitivi GUI. Cool stuff Michael!

Diva and Pitivi

So why are there two efforts to make a GTK+ non-linear editor using GStreamer instead of one you might ask. Well as usual the answer is disagreement on design and component choices. While Diva and Pitivi are written in C# vs Python that isn’t the important divide, although it has some secondary implications in that regard as it makes it a little easier for Novell to integrate Diva with f-spot and Banshee when its done with Mono, while for us integrating Pitivi with Flumotion to do live editing on video streams is easier when both are done in Python. Both are possible of course anyway, but using the same language does makes things easier. But as said these are secondary items.

With Pitivi we sincerely feel that the under laying design is sounder and more flexible and that the path taken with gdv, the library Diva is built upon is suboptimal and much less flexible compared to the direction we have taken with GNonLin, the library/gstreamer plugin that Pitivi is built upon. Michael obviously disagrees which this assessment which is why he wrote GDV in the first place. Time will tell who is right and not.

That said the competition between the two projects is friendly and the redundancy in work is luckily kept to a minimum due to both projects using GStreamer. A lot of the work involved for both projects is of course writing various GStreamer plugins to enable support for various formats and effects and here everything that benefits one benefits the other. Both Edward and Michael is also looking at each others code and applications for ideas and discussing technical problems, so even though there are two codebases on two languages there is a good deal of cross pollination going on.

So no matter what happens the community should have one or two kick ass non-linear editors within a year. Personally I am putting my eggs in the Pitivi basket, but I will be genuinely happy about people contributing to any of the two projects.


#1 Rene on 03.30.06 at 20:57

I think Diva will be the app to watch out for. It may not be using the best choice of libraries and programming language (just my personal preference). That will not matter much since it clearly has understood the concept of timeline editing, which it seem pitivi has yet to understand or properly implement in an easy to use manner.

I must admit that I’m really glad to finally see a program like Diva on the Linux desktop. This is the first time I see an editing program which doesn’t suck from the outset.

Of course, since gstreamer is actually reaching a state where it can be used for video work, the editing situation may get better really fast. Thanks to all the developers for making this possible.

#2 mrben on 03.30.06 at 21:45

Jono has already submitted a proposal for a GUADEC talk – see