On Tue, 2008-01-22 at 08:58 -0900, Jeff Spaleta wrote: > On Jan 22, 2008 7:52 AM, Colby Hoke <choke@xxxxxxxxxx> wrote: > > Thanks to a suggestion from Nicu Buculei, I've joined this list mostly > > out of interest in an Art Studio spin of Fedora. I've been working with > > gdk and jspaleta on getting a Fedora repo-ready version of Kino out > > there for people to make their own videos in the Fedora world. > > Now that fedoratv is public knowledge let's take a moment and re-cap > where things stand on what we've been poking at. > > Fedoratv needs work, but its basically where we want to drive Fedora > related content as a place to dogfood open codecs associated tools by > generating our own project relevant content. Open media isn't going to > get better until we have a real reason to use it. Fedoratv will be the > open service where the Fedora's media needs will be met. > > But Fedoratv is just the service, we also need to make client side > video editting an out-of-box reality. It doesn't have to be perfect, > it just has to be good enough so that people can edit content for > consumption on fedoratv. Let me explain what we need to be able to > ship out-of-the-box in Fedora on the clientside. > 1)reliable dv camera capture for some subset of camera hardware > 2)kino as the default dv video editor which can export into ogg theora > video for upload to fedoratv > > Okay so where are the problems: > First... firewire and dv cameras. There have been some technical > problems with the new kernel firewire stack which have seen > improvement in update f8 kernels. > Speaking of which, Colby, does firewire dv capture work for you in the > latest f8 kernels? > > > A basic stripped down kino which can take raw dv and export to theora > is absolutely doable. > You don't get access to control over interlacing (via gst-ffmpeg > plugin) and other things which semi-profession video people will want. > But for basic community web content, it will export theora with a > vorbis audio stream. On top of that if ffmpeg is on the system kino > is smart enough to see it and enable more export options. > > The only problem is, we've no out-of-the-box way to convert use theora > video clips as source material in kino. Kino internally uses dv, and > through the magic of ffmpeg it can import other formats and convert > them internally to dv. The problem is we don't have a Fedora > shippable way to convert theora to dv, as far as I can tell. And > that's a problem. It would be extremely useful if people could take > theora screencasts as source material into kino to mix with dv > footage, and re-export as theora again. > > Yes, yes.. video purist out there are cringing at the thought of > mixing dv and compressed video, but the goal here is good enough for > fedoratv.. not good enough for professional sport drink commercials. > The state of video is such that we can't wait for a profession quality > open editor tool to fall out of the sky. We have to start here, and > then find people willing to take up the challenge to create the next > generation of open editting tools so we can produce even better > content. > > So how do we get theora vids converted to dv for kino to use as source > material? I do not know. Stripping down a version of ffmpeg as > something shippable in fedora is a near impossible task, and would > require legal review regardless. I haven't found an existing > gstreamer plugin that lets me do it that could in the future be > promoted to 'good' and shipped in fedora. So if someone knows a way > to convert theora to dv out-of-the-box in fedora right now, I want to > know how to do it. Kino lets you add custom import scripts, so once > we have a commandline way to do the conversion, kino gains it as an > import method. > > -jef > Seems cool, one question though. Are you considering using the matroska container for the videos available for download as well? I believe it is superior to ogm/flv in many areas. Thanks, Martin
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