[mythtv-users] "Error getting codec params"... "IVTV_IOC_G_CODEC:: Invalid argument"

[Dean Wilson]

I just installed the SVN mythtv, and am getting similar errors:

2006-07-08 19:33:23.013 TVRec(3): Changing from None to WatchingLiveTV
2006-07-08 19:33:23.014 TVRec(3): HW Tuner: 3->3
2006-07-08 19:33:23.238 MPEGRec(/dev/video0) Error: Error getting codec params
                        eno: Invalid argument (22)
2006-07-08 19:34:09.743 TVRec(3): Changing from WatchingLiveTV to None

(mplayer /dev/video0 still works like a charm)

Any help would be appreciated...

~Dean

On 7/8/06, Dean Wilson <dean.k.wilson at gmail.com> wrote:
> I just reconfigured my mythbox, and am having the same problem.
> Here's my setup:
>
> AMD X2 4200+ running 64-bit linux
> Fedora Core 5 with 2.6.17-1.2139_FC5 kernel
> SVN release-0-19-fixes (as of 7/7/06)
>
> First attempt was with ivtv rpm modules:
>
> [root at hercules bleeding]# rpm -qa | grep -i ivtv
> ivtv-firmware-enc-2.04.024-9.at
> perl-Video-ivtv-0.13-7.rhfc5.at
> ivtv-firmware-dec-2.02.023-9.at
> ivtv-0.8-116.rhfc5.at
> ivtv-kmdl-2.6.17-1.2139_FC5-0.8-116.rhfc5.at
> ivtv-firmware-audio-0.0.1-5.at
>
> Second attempt was with ivtv svn 0.7.
>
> In both cases, I can watch tv by doing 'cat /dev/video0 >
> /tmp/test.mpg', and watching it with 'mplayer -vo xv /tmp/test.mpg'
> with no problems.  However, when I try to watch in myth, I get the
> following error:
>
> 2006-07-08 18:03:23.884 TVRec(3): Changing from None to WatchingLiveTV
> Error getting codec params
> IVTV_IOC_G_CODEC:: Invalid argument
> 2006-07-08 18:03:51.085 TVRec(3): Changing from WatchingLiveTV to None
>
> I deleted and re-added my capture cards, with no success.
>
> Suggestions?
> ~Dean
>
>
> On 6/28/06, George Nychis <gnychis at cmu.edu> wrote:
> > Hey guys,
> >
> > I'm having problems starting mythtv and live tv, i'm not sure if this is
> > an IVTV problem or a MythTV problem, whether it be a setup problem or a
> > bug I'm not sure.
> >
> > I have a 2.6.17-rc6 kernel and a WinTV-PVR 150 card, here is its lspci
> > output:
> > 03:05.0 Multimedia video controller: Internext Compression Inc iTVC16
> > (CX23416) MPEG-2 Encoder (rev 01)
> >         Subsystem: Hauppauge computer works Inc. WinTV PVR 150
> >         Flags: bus master, medium devsel, latency 64, IRQ 20
> >         Memory at e8000000 (32-bit, prefetchable) [size=64M]
> >         Capabilities: [44] Power Management version 2
> >
> > I am using the latest subversion entry of IVTV as of yesterday, and
> > MythTV-0.19_p10281 from Gentoo's portage.
> >
> > On my computer, I can successfully capture and playback video and audio via:
> > cat /dev/v4l/video0 > test.mpg
> >
> > However when I try to start mythtv and watch livetv, i see this:
> > 2006-06-28 03:15:43.017 RingBuf(/mnt/store/1027_20060628031541.mpg):
> > Invalid file (fd 15) when opening '/mnt/store/1027_20060628031541.mpg'.
> > 12 retries remaining.
> >
> > It retries the 12 times and then quits.  I check my backend log and i
> > see this:
> > Error getting codec params
> > IVTV_IOC_G_CODEC:: Invalid argument
> >
> > Note that I am *not* using NFS, the backend and frontend are on the same
> > machine.  Also note that while i can successfully record/playback with
> > cat /dev/v4l/video0 > test.mpg ... the file IS successfully created in
> > /mnt/store, and when it quits the file is left there, and i *cannot*
> > play this file back.
> >
> > I'd greatly appreciate any help / suggestions.
> >
> > Thanks!
> > George
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>