http://ronald.bitfreak.net/

FAQ & Help

I got many feature suggestions but few bug reports. Here are some questions you might have:

Will you support my [.. fill in here ..] card?
Maybe... Basically, that doesn't depend on us as much as it depends on support for your card by the MJPEG-tools and support by means of drivers. Basically, if it has a zoran chip you might want to look at the zoran drivers (http://mjpeg.sourceforge.net) and see whether they might work for your chipset. If not, you'll need to write drivers yourself or find someone to do that for you.
If it's a non-hardware-MJPEG card, such as a Bt8x8 based card, you will have to use a fairly new driver, such as the BTTV-0.8 driver (note: the kernel contains 0.7.x, which is NOT supported!), and use mjpegtools-1.6.1 or mjpegtools CVS. mjpegtools-1.6.0 might not work.

Will you support this [.. fill in here ..] video format?
For capture: probably not. We support MJPEG AVI, Quicktime and movtar, that should really be enough. For editing: we support MJPEG AVI, Quicktime, movtar, we might support DV on the long term and that's probably about it. For playback: MJPEG-only (hardware limitations). For encoding: we currently support MPEG-1 and MPEG-2, we're aiming at supporting a wider range of formats here. We might support divx and mpeg-4 in the future. We will probably make something to transcode the editing list back to a MJPEG movie again (this is the easiest work) and that's probably about it. Sorensen quicktime is difficult because it's a closed format, wmf/asf are not interesting and that's about it. Ideas are always welcome, though :-).

The editor seems to get confused if I make a lot of changes. It plays back as if nothing changed or only plays back a few of the changes I made in the picture list.
Yes, this is an evil but known bug. It's hard to solve due to the lousy way in which lavplay and LVS interact - unix pipes. These are excellent for recording, playing back or encoding, but for a video editor, you would want to use libraries... This basically means we need to librarify lavplay to get it working in a usable way. In the 1.6.x mjpegtools-CVS and in mjpegtools-1.6.0, lavplay is librarified, but LVS doesn't use this yet. We're working on it but it will take some time.

I used to have video but I bought a new card/use other dribers/use a different system/[..fill in here..] and now it doesn't work anymore
Big chance your V4L-Xv ports got re-assigned which means that the port numbers changed. LVS doesn't know so you have to tell LVS that it needs to look for a new port. Please supply a new port through the options screen, via the command line ("studio -p " or remove your ~/.studio/studio.conf and try again - it should work now.

Why do all old versions say they are called Linux Studio?
Originally, this application was called Linux Studio. Someone else was using that name too so I decided to give it a new name, Linux Video Studio.

What is Linux Video Studio and what does it want to be?
Linux Video Studio is a simple application to help you recording video with a MJPEG-codec board, such as the Iomega Buz, the Pinnacle/Miro DC10(+), the Matrox G200/G400 and Rainbow Runner series and the Linux Media Labs 33. It requires MJPEG-Tools (or at least lavtools) installed.

Why isn't there video
Linux Video Studio uses the Video4Linux-XVideo extension. Read the README on how to enable the Video4Linux-extension and Xvideo. This requires XFree 4.x. Run in a console to see what you have to do exactly and read the README too.

Who created that cool Tux logo at the left top of this website?
Laurens Buhler. You can visit him (and me) on the IRC-network irc.chatjunkies.org #dutch.

For questions/reporting bugs, please send me an e-mail.

Last Modified: Monday, 21 October 2002

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