[Gllug] Digital video

[Paul Brazier]

I've got a bit further with this over the weekend:
Firstly, an easy question for someone I'm sure: 

How do I get kernel modules to automatically load at boot? I've been
manually typing 
insmod ieee1394
insmod ohci1394
insmod raw1394
I've looked at /etc/modules.conf (or is it /etc/conf.modules?) but I'm
unsure of the syntax.

I've had problems with the video file formats.
If anyone's interested here's what I've found (please correct me if I'm
wrong):
The .avi (audio-video interleave) format, invented I think by Microsoft,
is in fact a kind of "wrapper" format that lumps together audio and
video, but the actual compression used for the video or audio components
could be anything.
The digital video cameras uses their own hardware compression "dv1" or
"dv2".
Most other .avi's you find use something else like CinePak, Sorenson,
etc.

Windows media player manages to play the DV-compressed .avi's, I think
because it has a "DVSoft" codec (compression-decompression) installed
that decompresses in software what the camera does in hardware.
Quicktime can play most .avi's but not DV ones.

The video player I couldn't remember is xanim, the version I had
wouldn't play DV .avi's.

gscanbus is a useful gtk application for testing your firewire/ieee1394
network is working OK.

dvgrab is a commandline tool for grabbing digital video in either dv1,
dv2 or "raw" (I asume this is uncompressed?) formats. No fancy front end
but works fine.

Kino (mentioned below) plays *only* DV-compressed .avi's. I couldn't get
the latest version (0.4) to compile so I was using an older rpm and
couldn't seem to grab DV using this. It's a fairly basic player.

Broadcast 2000 looks very good, it has lots of functionality for video
editing. mp3 music files load OK and you can apply loads of effects. It
doesn't like .avi's though - it seems to work mainly using Quicktime
.mov format. Grabbing video from a DV camera I couldn't get to work.
I'll persevere though because it looks very promising if I can get the
video files open in the first place.

-----Original Message-----
From: robin.c.smith at bt.com 
Sent: 06 July 2001 13:04
To: bt.com.robin.c.smith; linux.co.uk;.gllug
Subject: RE: [Gllug] Digital video


You're slightly further down this route than me ( just about to install
the
firewire card ). There is an editor called Kino that you can get from
the
same place as dvgrab http://www.schirmacher.de/arne/dvgrab/index_e.html

Robin

-----Original Message-----
From: Paul Brazier [mailto:pbrazier at cosmos-uk.co.uk]
Sent: 06 July 2001 12:58
To: Gllug (E-mail)
Subject: [Gllug] Digital video


Does anyone have any experience of digital video import/editing under
Linux?

I've managed to get a DV camera and firewire card working under Linux
(Mandrake 8.0, 2.4.3 kernel) to the extent of grabbing video to disk
(using gscanbus, dvgrab, libraw1394) which I can then view in Win98.

Can anyone recommend any video viewers/editors/tools?
In particular I'm sure I used to have a lightweight X program that
played .avi's but I can't remember the name.

--
Paul Brazier
Cosmos UK 


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