[mythtv] RE: Re: [ivtv-devel] Stupid question

David A. Mason damason at redshift.com
Thu Jul 10 15:21:14 EDT 2003

I wonder if it has anything to do with this output, though. I find that it
is sufficient only to start mythbackend (without trying to watch or record)
to kill the sound. I.e., if I start mythbackend and stop it immediately
after, I can no longer get sound with my video using the ivtv record.pl

Is this also the case with you, Achint?


-----Original Message-----
From: ivtv-devel-admin at lists.sourceforge.net
[mailto:ivtv-devel-admin at lists.sourceforge.net] On Behalf Of Achint Sandhu
Sent: Thursday, July 10, 2003 1:16 PM
To: ivtv-devel at lists.sourceforge.net
Cc: mythtv-dev at snowman.net
Subject: Fwd: Re: [ivtv-devel] Stupid question

Hi Isaac,

	Included below is the capture of the output from mythfrontend.

bash-2.05b# mythfrontend
connecting to backend server:
Changing from None to WatchingLiveTV
Input #0, mpeg, from 'rbuf://':
  Stream #0.0: Video: mpegvideo, 480x480, 29.97 fps, 16000 kb/s
    Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
    Opening OSS audio device '/dev/dsp'.
    Over/underscanning. V: 0.000000, H: 0.000000, XOff: 0, YOff: 0
    Using XV port 56

	I did notice that it says "OSS audio device"... I'm using ALSA. Is
this an 
issue ????

	Also it's probably time to move the discussion over to myth-devel,
so I am 
cc'ing that list and will continue the rest of this on that list. The 
original email is included at the bottom for context.

	Thanks to Kevin and Isaac for responding...


----------  Forwarded Message  ----------

Subject: Re: [ivtv-devel] Stupid question
Date: July 10, 2003 16:07
From: Achint Sandhu <sandhu at kilo.dyndns.org>
To: ivtv-devel at lists.sourceforge.net

Hi Isaac,

	For the frontend, the output for the audio device is set to /dev/dsp

	For the backend, the audio device on the "Capture Card"
configuration screen is set to (None)....

	I'll grab the output from the frontend and as soon as I get home and
post it to the myth list....



On July 10, 2003 15:22, Isaac Richards wrote:
> On Thursday 10 July 2003 02:58 pm, kevin thayer wrote:
> > try test_ioctl -v input=3,output=1
> >
> > It's possible that myth is setting the inputs wrong.
> Shouldn't be touching the inputs..  It's kinda likely that mythtv 
> doesn't have anything set for the audio output device, though without 
> the output of mythfrontend, I can't be sure.
> Isaac


        I've installed a PVR-250 card into an ASUS pundit. I downloaded the 
driver files and got everything running.

        I'd like to thank the developpers since this part was relatively 

        Capturing video and audio using cat /dev/video0 > test.mpg works 

        I did run into some issues with setting up MythTV. Basically it does

produce any audio and after running the mythbackend and killing it, I can no

longer use the cat /dev/video0 trick to record audio.

        Using test_ioctl -a before and after mythbackend, does not indicate 

(1) Is there any way to capture the card state other than test_ioctl -a ?
(2) When I run lspci -v, I see
00:0e.0 Multimedia video controller: Internext Compression Inc: Unknown
0016 (rev 01)
        Subsystem: Hauppauge computer works Inc.: Unknown device 4009
        Flags: bus master, medium devsel, latency 32, IRQ 10
        Memory at e0000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [44] Power Management version 2
when according to the Myth FAQ I am supposed to see:
00:0c.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2
Encoder (rev 01)
        Subsystem: Hauppauge computer works Inc.: Unknown device 4801
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at d0000000 (32-bit, prefetchable) [size=64M]
        Capabilities: <available only to root>

        Is the fact that I don't see " iTVC15 MPEG-2" an issue ? Do I need
the PCI slots ??? The weird part is that it works fine before I launch 

        Thanks in advance

        Incase it's relavant, the machine is an ASUS pundit with a 2.4ghz
1gig of RAM, running gentoo (2.4.20-gentoo-r5). I've checked on v4l2 support

and the patches listed in the readme files and the kernel is patched.



"There are 10 types of people in the world.  Those that understand  binary
and those that don't"

This SF.Net email sponsored by: Parasoft
Error proof Web apps, automate testing & more.
Download & eval WebKing and get a free book.
ivtv-devel mailing list
ivtv-devel at lists.sourceforge.net

More information about the mythtv-dev mailing list