List: linux-video
Subject: [video4linux] Combined audio/video capture utility.
From: Justin Schoeman <justin () suntiger ! ee ! up ! ac ! za>
Date: 1998-09-01 14:07:20
Hi everybody,
A while ago I asked for some of you to test my audio/video capture utility.
It seems the crashes I was experiencing were actually related to a M/B
problem, not the software, so I have decided to "officially" release the
software.
It is primarily intended for capturing video and audio for conversion to an
MPEG system stream.
The software is not (and probably never will be) very user friendly, but I use
it regularly to record video-email (and sometimes even TV programs).
The audio synchronisation is somewhat buggy (it tends to lose a second or so
every 5 minutes), but I will release a fixed version next week.
For any brave soles who want to use it, it is avaliable at:
http://www.ee.up.ac.za/~justin/bttv/Vstream0.1.1.tgz
It currently compiles with bttv0.5.15 (and probably 2.1.117 kernel as well,
but I am still on 2.0.35).
Enjoy!
-justin
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List: linux-video
Subject: [video4linux] New Vstream release! (Unlimited file length,
High capture bandwidth
From: Justin Schoeman <justin () suntiger ! ee ! up ! ac ! za>
Date: 1998-09-14 20:14:20
Hi everybody!
New Vstream avaliable at: http://www.ee.up.ac.za/~justin/bttv/Vstream0.3.1.tgz
I finally got some time this weekend, so I completely rewrote Vstream. The
new features are:
1) (very nearly) perfect audio/video synchronisation
2) capture to multiple files, resulting in:
- Unlimited total stream length and
- VERY high capture bandwidth (capture to files on different physical media)
3) EDITTING! Yes, you can now mix and match video blocks from multiple streams
into one file!
4) start and end timers, for those of you who (like me) do not have a VCR at
home.
For those of you that don't know what it is, it is a bare-bones capture
utility that writes captured frames to a stream file (now a group of stream
files), and simultaneously writes audio to an audio stream file. There are a
number of post processing utilities to (1) edit the video stream, (2)
synchronise the audio stream, (3) convert the captured files to ppm (or even
directly to MPEG). Together, these utilities allow you to capture high
quality video for conversion to MPEG system streams.
If anybody out there finds this useful, but has more features that they would
dearly like to see, give me a yell, and I will see what I can do!
Enjoy!
-justin
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List: linux-video
Subject: [video4linux] Oops, forgot - Test reports needed
From: Justin Schoeman <justin () suntiger ! ee ! up ! ac ! za>
Date: 1998-09-21 16:14:05
Hi again,
I almost forgot... I would really apreciate it if I could get some test
reports on Vstream - what I need to know is:
1) Does it work with NTSC now? (ie -DNTSC)
2) What sort of capture rates are possible with multiple fast hard-drives
(unfortunately I only have one, and I capture 640x480@6fps, 320x240@12fps and
160x120@25fps PAL).
3) Any other editing modes that you can't live without.
4) Anything else that you love/hate.
(3 and 4) aren't that important.
Thanx
-justin
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List: linux-video
Subject: [video4linux] Final Vstream release - even more features added
From: Justin Schoeman <justin () suntiger ! ee ! up ! ac ! za>
Date: 1998-09-21 16:09:04
Hi everybody,
I have finally (more-or-less) finished my Vstream package. The new features
are:
1) (My personal favourite) X viewer for captured stream files! It is no longer
necesary to convert to MPEG first.
2) X viewer for frames (reads from clipping table instead of raw streams, so
you can preview edits / select clips to edit). Unfortunately the editing
algorithms are too slow for the real-time player.
3) ppm2str utility for converting ppm files to video streams for inclusion in
edited videos (usually as overlays).
4) str2ppm can now write to stream files as well, so you can play them back
with the real-time viewer.
3) Many more editing commands: overlay, fade-to-black, fade-from-black and
fade-to-stream.
With these last additions, Vstream now has all the functionality I require
(and more!), so I won't really be adding to it much more.
For those of you without bttv cards, you will have to wait for v4l2 for
time-stamped video frames, at the moment I rely on bttv's frame counter for
time-stamping.
The source code is avaliable at:
http://www.ee.up.ac.za/~justin/bttv/index.html
I hope you find this useful!
Enjoy!
Justin Schoeman
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List: linux-video
Subject: Re: [video4linux] Final Vstream release - even more features added
From: Alan Cox < alan () cymru ! net>
Date: 1998-09-21 17:07:41
> For those of you without bttv cards, you will have to wait for v4l2 for
> time-stamped video frames, at the moment I rely on bttv's frame counter for
> time-stamping.
All the non bttv cards in the kernel dont support frame counting as far
as I can tell. The PMS might but its not documented enough for me to tell
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