[mythtv-users] HD-PVR: Encoding Errors Running 0.22

[John P Poet]

On Sun, Nov 22, 2009 at 2:15 AM, Alan Young <ayoung at teleport.com> wrote:
> Mike Smith wrote:
>>
>> Hi,
>>
>> I've been trying to track this problem down for a week now.  When I record
>> a regular
>> program like Monk, or The Big Bank Theory,  the Hauppauge 1212  does an
>> excellent
>> job.  But, when I try to record sports programs,  like a live NFL Football
>> game,  I get jumps.
>> While viewing, it looks like a quick jump over from 1 - 3 seconds.  I has
>> also happened
>> while recording Saturday Night Live ( SNL ).
>>
>> Last night,  I upgraded the firmware on the HDPVR to 0x12, which posts to
>> this forum indicate
>> is the latest.
>>
>> I also upgraded the kernel on my Fedora 10 backend to the latest supported
>> kernel,
>> 2.6.27.38-170.2.113.fc10.i686.
>>
>> The problem is on the recording side.  Not playback.  If I replay in Edit
>> Mode, and can
>> do a frame-by-frame advance, and the skip is still in the same place.  The
>> frames never
>> make it to the output file.
>>
>> The mythbackend logs have these type of messages in the area where a skip
>> occurs.
>> These were from recording ESPN News.  The video was a replay of an
>> basketball game
>> where a player was being interviewed and a replay of his dunk was on the
>> screen.
>>
>> What do these messages indicate?
>> 2009-11-21 03:30:08.598 Started recording: ESPNEWS: channel 3305 on cardid
>> 6, sourceid 2
>> 2009-11-21 03:30:36.763 DevRdB(/dev/video0) Error: Poll giving up
>> 2009-11-21 03:30:36.767 MPEGRec(/dev/video0) Error: Device error detected
>> 2009-11-21 03:30:36.769 DevRdB(/dev/video0): Stop(): Not running.
>>
>> <======   Basketball replay here
>> 2009-11-21 03:31:48.552 DevRdB(/dev/video0) Error: Poll giving up
>> 2009-11-21 03:31:48.560 MPEGRec(/dev/video0) Error: Device error detected
>> 2009-11-21 03:31:48.561 DevRdB(/dev/video0): Stop(): Not running.
>> <=======    End Jump
>> 2009-11-21 03:32:09.697 DevRdB(/dev/video0) Error: Poll giving up
>> 2009-11-21 03:32:09.704 MPEGRec(/dev/video0) Error: Device error detected
>> 2009-11-21 03:32:09.704 DevRdB(/dev/video0): Stop(): Not running.
>> 2009-11-21 03:32:48.376 DevRdB(/dev/video0) Error: Poll giving up
>> 2009-11-21 03:32:48.380 MPEGRec(/dev/video0) Error: Device error detected
>
> Well, at least I'm not alone.  I was beginning to think I was as I not
> found any posts about this issue.  :)
>
> I've seen the on a variety of different channels over the last month or so.
>  It seems to work ok if I record with outside of mythtv with  cat
> /dev/hdpvr > file.ts.  It also seems work if I watch while it records
> (that is as long as VDPAU doesn't give an error, but that's another
> issue...).  It would be nice if it gave some more information as to what
> mythtv thinks detects the error as.  I've tried turning on hdpvr driver
> debugging and don't get much more there.
>
> I've tried switching cables and put the HDPVR on it's side to help
> ventalation.  But I still get the error.  I was running .21+fixes+hdpvr
> and as far as I can recall I did not see this problem until I moved up to
> trunk before .22 then .22RCs and later.
>
> I have a Athlon X2 4200 on a MSI K8NGM2-FID (nforce MCP51) board.  I'm
> recording from DirecTV.  What hardware are you running and what are you
> recording from?
>
> Alan

Out of curiosity, what else is happening on the computer when these
glitches appear?  What is the system load?  Are there any processes
consuming excessive amounts of system resources?


John
-- 
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?