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Stephen Crampton | 1 Mar 2003 02:14
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RE: Jpeg decompression

> interleaved.  It still needs more optimization and cleanup, but if 
> you're interested (and this format will work for you) let me know and 
> I'll send a src tarball. It compiles into libmjpeg.a, but should be easy 
> enough to make a .so if you prefer.  It definitely should _not_ go in 
> kernel space.
> 
> Steve
> 
> -- 
> Steve Miller
> Software Engineer
> STMicroelectronics
> phone (602) 485-2014

Could you provide a link to where the code can be found?

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Ronald Bultje | 1 Mar 2003 15:16

Re: Driver/Application support of V4L2 (was Re: Jpeg decompression)

Hey John,

On Fri, 2003-02-28 at 20:11, PlasmaJohn wrote:
> > > Is there a CONFIG_ directive for V4L2 so that we don't require people to
> > > patch their kernel until absolutely necessary?
> > Yes, HAVE_V4L2 (#ifdef HAVE_V4L2 ... #endif).
> Great!  Uh, is this 2.5.x specific or will it be valid for 2.4.something?  I
> don't see it in Gerd's 11-v4l2-api-2.4.20.diff

$ grep HAVE_V4L2 /usr/include/linux/videodev*.h
/usr/include/linux/videodev.h:# define HAVE_V4L2 1

this is 2.4.20, so it works there too.

Ronald

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xx | 1 Mar 2003 14:40
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PixelviewPlayTV Pro Rev. 2F, (LG Innotek) Problem

Hi!

I tried to set up the following tuner Card:
PixelviewPlayTV Pro Rev. 2F
(+FM Radio, Remote controller, bt878)

The string written on the tuner module is : TPI8PSB02P
Howewer, i have not found this in the "Tuners" file. I think
it is
"TPI8PSB12 Pal D/K+B/G (TPI8PSB02 w/FW) (P,170,450)",
but this (TPI8PSB12) is not listed in the CARDLIST file.
Of course, i tried to use all LG Innotek tuner types (25-29)
at the tuner module (insmod), but every time i get with xawtv:
- Acceptable picture at full screen overlay mode;
- At full screen grabdisplay mode, there are small dots on
the right part
  (~1/3) on the screen;
- Every time very noisy and poor sounds

Does anyone have an idea, how should i set up this card to
work correctly?
Thanks for all tips,

Tat

***
There are all parameters i used:
at modules.conf:

#i2c
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PlasmaJohn | 1 Mar 2003 17:27

Re: Driver/Application support of V4L2 (was Re: Jpeg decompression)

On 1 Mar 2003, Ronald Bultje wrote:

> Hey John,
> 
> On Fri, 2003-02-28 at 20:11, PlasmaJohn wrote:
> > > > Is there a CONFIG_ directive for V4L2 so that we don't require people to
> > > > patch their kernel until absolutely necessary?
> > > Yes, HAVE_V4L2 (#ifdef HAVE_V4L2 ... #endif).
> > Great!  Uh, is this 2.5.x specific or will it be valid for 2.4.something?  I
> > don't see it in Gerd's 11-v4l2-api-2.4.20.diff
> 
> $ grep HAVE_V4L2 /usr/include/linux/videodev*.h
> /usr/include/linux/videodev.h:# define HAVE_V4L2 1
> 
> this is 2.4.20, so it works there too.

Ah, I see my problem.  I've got 2.4.16 and the 11- patch modifies an #ifdef 0
to an #ifdef 1 in .20 that doesn't exist in .16 (well, .15 with a patch).  I
just unpacked .20 and found the lines in question.  Thanks!

Is V4L2 being considered for inclusion into the 2.4 series?  Are there any
vendors include it or planning on including it in a 2.4 kernel?

John

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James Budworth | 2 Mar 2003 10:11
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Re: SAA7134 xawtv flakey?

On Wed, 2003-02-26 at 12:38, Steven Ellis wrote:
> --- Tsuki-yomi <tsuki_yomi <at> zephilia.dyndns.org> wrote:
> > On Tue, 25 Feb 2003, Steven Ellis wrote:
> > 
> > > I'm at pretty much the same stage. I have tried
> > using
> > > both v4l1 and v4l2 interfaces to get to my
> > FlyVideo
> > > 3000 card and I can't get audio to work. Real pain
> > as
> > > I want to try using mencoder for capture.
> > 
> > The interesting thing I found was that although I
> > didn't get any sound 
> > from xawtv I *did* get sound from motv.
> 
> Which version of xawtv. I'm using the latest versions
> of xawtv, xawdecode and tvtime with few problems

I found out what the problem was... seems Redhat 7.3 comes installed
with xawtv 3.73 - which doesn't have have motv.

When I installed xawtv 3.85 it didn't overwrite the older version
(despite the fact that it didn't give any error messages)

This also stopped the "v4lctl volume mute off" sound fix for mplayer
from working.

> > If I'm correct then the only difference between
> > these tow apps is the
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"Fredrik H=?ISO-8859-1?Q?=F6gberg" ?= | 2 Mar 2003 13:14
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Chose tuner card

Hi!
Im thinking of buying a tuner card and get started with V4L.
I've spent a some time searching the net trying to find out what to buy but the more info i found the more
confused i get.

Here's what i had in mind.
Im going to use the card with mythTv of Freevo to play mp3:s, avi:s, dvd:d etc. I would also like be able to
record video and timeshift.
Later i'm thinking about putting the card in an itx box for a quit standalone solution. Especially if the ati
hardware mpeg2 decoding gets supported in linux.

I've looked at the ASUS Tv Tuner (Don't know if it has a 'real' name.).
This card looks very promising with great image quality and remote control.
I've read around a bit and if i'm correct this card with the Connexant CX23880 chip is not supported in linux
today. However i've seen some evidence that development of this driver is on it's way. Does anybody know if
i can expect a driver anytime soon or should i get another card.

I've looked at some other cards. Hauppage, Pinnacle and LifeView but none of them has the Bt848/Bt878 chip
wich i beleave has the best linux support with bttv. What's the second best thing?

Any help or suggestions is appreciated.

Fredrik
usur <at> home.se

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Ralf Haller | 2 Mar 2003 18:50
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no sound with bttv

Hi everybody,

I can watch TV with my Hauppauge WIN PCI card, however there is no 
sound. The module msp3400 is installed and the TV card is directly 
hooked up to my speakers. I can change the volume and msp3400 reflects 
this in the syslog.

What ist going wrong here? I am using RedHat 8.0.

Thanks in advance for any help.

r <at> l.f

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Billy Biggs | 2 Mar 2003 21:38

Audio problems with Prolink PixelView cards

  We've been getting bugreports on the tvtime site about audio on
Prolink PixelView cards.  The user was having mute fail completely or be
inverted, but only in tvtime where we mute close to channel changes.
The original post I had about this was here:

  http://www.redhat.com/mailing-lists/video4linux-list/msg18038.html

  This time we had more luck.  The card was not autodetected, and they
were using card=72 which worked alright, but not in tvtime.  Turns out
using card=70 solved all of their problems.

  Is there some way we can better autodetect these cards?  Can we send
any information to help fix this to work without effort?  You mentioned
output from bttv_gpio=1 and bttv_debug=1/2, would that help with this?

  Thanks,
  -Billy

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Ralf Haller | 2 Mar 2003 23:25
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Re: no sound with bttv

Hi again,

here is the output to syslog when starting zapping as v4l client:

Mar  2 23:21:43 Baden kernel: i2c-core.o: i2c core module
Mar  2 23:21:43 Baden kernel: i2c-algo-bit.o: i2c bit algorithm module
Mar  2 23:21:43 Baden kernel: Linux video capture interface: v1.00
Mar  2 23:21:43 Baden kernel: bttv: driver version 0.7.96 loaded
Mar  2 23:21:43 Baden kernel: bttv: using 4 buffers with 2080k (8320k 
total) for capture
Mar  2 23:21:43 Baden kernel: bttv: Host bridge is VIA Technologies, 
Inc. VT82C598 [Apollo MVP3]
Mar  2 23:21:43 Baden kernel: bttv: Host bridge is VIA Technologies, 
Inc. VT82C586B ACPI
Mar  2 23:21:43 Baden kernel: bttv: Bt8xx card found (0).
Mar  2 23:21:43 Baden kernel: PCI: Found IRQ 12 for device 00:13.0
Mar  2 23:21:43 Baden kernel: bttv0: Bt848 (rev 18) at 00:13.0, irq: 12, 
latency: 64, mmio: 0xe9001000
Mar  2 23:21:43 Baden kernel: bttv0: using: BT848A( *** UNKNOWN/GENERIC 
**) [card=0,autodetected]
Mar  2 23:21:43 Baden kernel: i2c-core.o: adapter bt848 #0 registered as 
adapter 0.
Mar  2 23:21:43 Baden kernel: bttv0: using tuner=-1
Mar  2 23:21:43 Baden kernel: bttv0: i2c: checking for MSP34xx  <at>  0x80... 
found
Mar  2 23:21:43 Baden kernel: i2c-core.o: driver i2c msp3400 driver 
registered.
Mar  2 23:21:43 Baden kernel: msp34xx: init: chip=MSP3400C-C6
Mar  2 23:21:43 Baden kernel: msp3400: daemon started
Mar  2 23:21:43 Baden kernel: bttv0: i2c attach [client=MSP3400C-C6,ok]
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Medve Zoltán | 2 Mar 2003 23:55
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Re: Chose tuner card

Hi

> I've looked at some other cards. Hauppage, Pinnacle and LifeView but
> none of them has the Bt848/Bt878 chip wich i beleave has the best linux
> support with bttv. What's the second best thing?
You should try Kworld 878RF-pro...
www.kworld.com.tw - it has radio tuner too, got teletext, has remote, etc.
I have one for a week, and I have no problem with it.

Bye: Zoltan Medve

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Gmane