On Mon Nov 26 04:47:45 2001 Justin Schoeman wrote...
>
>Stan Brown wrote:
>
>> I've discovered a wonderful procet called vcr at www.stack.nl/~brama/vcr
>>
>> I've beeen playing around with this, and Mplayer all weekend trying to set
>> up my Linux system to do useful video recording.
>>
>> I'm close, but need to discuss a few details with people more experience
>> than I in this area.
>>
>> I looked at that web site, but did not find a mailing list for it.
>>
>> Is this list an aporopriate place to discuss this? If not can anyone sugest
>> a more appropriate place?
>>
>> Thanks.
>
>
>This isn't _really_ the appropriate place, but a large number of people
>on the list would be interested, and nobody has complained so far (at
>least not too vocally) - so it would probably be OK to post to this list.
>
OK thnaks.
I spent the weekend prototyping a way to get as close to TVIO functionality
as I could Here is what I prototyped on Athalon 750MHZ 256M memeory, a
single 40G 7200 RPM IDE drive, and a WinTV card.
OS is Debian potato (stable) + Progeny upgrades, + 2.4.3 kernel.
The WinTV card works very well using xawtv, abd fbtv. I prefer to use fbtv
to watch TV on because of it's unclutered look.
So this weekend I took a shot at geting vcr to work. I was unable to build
1.09 as the avfile snapshot downloaded from thier web page would not build
for me. As I recall, even after I ran the included autogen.sh script
configure still complained about missing files.
So I wound up building 1.08. I was able to make this work, failry well.
That is using the DivX :-) low-motion codec and a resolutin of 384, I am
able to record. It dorps about 1 frame every 2 two to 5 seconds in capture.
I didn't worry a whole lot about this, since I am buying the parts to build
a gaster machine (1.2G Athalon) to actully deploy this, and I assume this
will at least take care of the droped frams.
A lot of what I want to record is fast motion (auto races), so I tried to
get the DivX :-) fast motion codec workign. Acording to the vcr web page,
this should work although the bitrate atribute can't be used.
When I commented out the atribute line in ~/vcrrc, and changed the codec,
iot did not work. I got this:
Script started on Sun Nov 25 17:28:42 2001
stan@yogi:/tmp$ vcr -t2m test.avi
Available CPU flags: fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
748.58 MHz AMD Athlon(tm) Processor processor detected
-------------------------------------------------------------
VCR 1.08, (C) 2001 Bram Avontuur (bram@xxxxxxxxxxxxxxxx)
-------------------------------------------------------------
[NOTICE] Setting mp3 bitrate to 24000.
[NOTICE] Found codec ID: 878070084
Filename: test.avi
Video: codec: DivX ;-) fast-motion, quality: 100
Default attributes will be used.
time : 120 s, fps: 29.97, keyframes: 10
size : 384x288 (WxH)
Audio: codec: MP3 @ 192 kbps
Out: 44 kHz, 16 bits (stereo)
Starting to record...type q+enter to quit.
Audiocodec: 85, bitrate: 24000
window: 0 384 0 288
Starting video capture thread.
Opening dsp....
Dsp opened!
1024
Dsp configuration set.
Starting writer thread.
Creating AVI file..
Adding video stream.
Set capture parameters.
Win32 loader: FATAL: Could not load library
VideoEncoder: FATAL: Unknown codec 34564944 = 'DIV4'!
@@D@@|@@�@@�@@�@@ A@hA@�A@�A@�A@�V@lW@ X@PX@tX@�X@q
Capture thread exiting
Sun Nov 25 17:28:45 2001
Dropped 4 frame(s) in capture
Captured 5 frames.
Frames dropped in capture: 4 (80.0%)
Frames dropped in encoder: 0 (0.0%)
Exiting..
Waiting for write thread
Waiting for audio thread
Waiting for video thread
All threads exited
v4l1: VIDIOCSYNC in ::~v4l1if
stan@yogi:/tmp$
Script done on Sun Nov 25 17:29:01 2001
Has anyone made this, or any other codec other than DivX :-) low-motion
work?
Now on to playing. I decided to try mplayer, since it supports framebuffer.
However I was unable to get it to scale the resultant save files up to the
size I'm used to seeing them in fbtv.
Do I need to define a special mode for the framebuffer like i did for fbtv?
If so, can anyone send me a sample config?
The closet I have come so far to getting what I wanted here was to use -vo
xv, and scale the resultant window to full screen manualy, in X. There must
be a better way to do this, right?
Now for the auto recording time setup. i tried to get webvcr working, but
so far I have not managed to get php4 integrated proerly with my apache
installation. However I recieved an email stating that I should not bother
as it only understans Europian chanels. Is this correct? Has anyone hacke
it to work with US chanels? Is anyone aware of a sollution that does work
for US chanels?
Thanks for taking time to read through this long tirade. Any sugestions as
to how to proced will be appreciated.
PS. I understand that what I _really_ need to make this work is hardware
MPEG encoding. The WinTV PVR vard seems to have this. Is anyone aware of a
way to use this under Linux?
--
Stan Brown stanb@xxxxxxxx 843-745-3154
Charleston SC.
--
Windows 98: n.
useless extension to a minor patch release for 32-bit extensions and
a graphical shell for a 16-bit patch to an 8-bit operating system
originally coded for a 4-bit microprocessor, written by a 2-bit
company that can't stand for 1 bit of competition.
-
(c) 2000 Stan Brown. Redistribution via the Microsoft Network is prohibited.
