Hi,
I've written a small program to display the packets that are contained
in a mpeg stream. It is available here:
http://www.linuxowl.com/vbiutil.html. The idea is that when the audio is
lost from the mpeg stream then some action can be taken, such as
resetting the firmware or rebooting.
To use the program the following command will echo failed when there is
no audio in the stream.
if ! mpegcheck -b4 | grep -q AUDIO_STREAM; then
echo $? FAILED
fi
If the video device is not /dev/video0 then it can be specified with the
argument -i/dev/videoX. More information can be shown with the argument -v.
A gotcha is that if the device is currently being used then it will
report an error and there won't be any packets displayed.
HTH
Duncan
> Hi List,
>
> Does anybody know why the IVTV X-Driver sometimes crashes or why the
> audio stream disappears?
>
> I'm curious if anybody run a system with a PVR-350 all the time
> everyday, without any problems?
>
> In the kernel log I get the following messages after the systems has
> been running for a while. I'm trying to determine what "a while" means
> but it is in the order to 2 to 3 days.
>
> ivtv0 warning: No Free Mailbox for cmd 0x00000060 after 100 tries!
> ivtv0 warning: Mailbox[0] 0x00000060 flags 0x00000003
> ivtv0 warning: Mailbox[1] 0x00000060 flags 0x00000003
> ivtv0 warning: Firmware UNRESPONSIVE when trying cmd 0x00000060!!!
> ivtv0-osd warning: Need to adjust to width 720 src_w 720 dst_w 720 src_x
> 0 dst_x 0
> ivtv0-osd warning: Need to adjust to height 576 src_h 576 dst_h 576
> src_y 0 dst_y 0
> ivtv0-osd warning: Source video: Interlaced
> ivtv0 warning: Enable video output
>
> Usually a reboot is needed before because the audio signal has been lost
> from the mpeg file. When the audio breaks there is nothing reported in
> the kernel log.
>
> Hardware is a Hauppauge PVR-350
> Driver: version 0.4.0->0.4.5
> Firmware encoder revision: 0x02050032
> Firmware decoder revision: 0x02020023
>
>
> TIA
> Duncan
>
>
> _______________________________________________
> ivtv-devel mailing list
> [email protected]
> http://ivtvdriver.org/mailman/listinfo/ivtv-devel
>
>
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