[mythtv] losing audio only when recording - RH9 & PVR-250

[cadstar at onebox.com]

Posted this to the users forums but got no replys. Thinking I should have posted it here instead. Here goes:


I upgraded to CVS from 8/15 and have found that my recordings no longer have audio. In fact for the past several CVS upgradeds I sometimes start LiveTV and there is no auduo untill I change the channel once (up or down) and it comes right back in. But I have never had this new issue with no audio in recordings. I can set a manual 1 minute record while watching the channel but when the record starts audio drops out. No audio again unitll 
the record finishes (then I have to change the channel once to regain sound again). I haven't changed/upgraded ivtv in several weeks so I dont think it's an issue there. 
   Thinking maybe it was a new CVS bug, I wiped out the CVS mythtv and grabbed the officeal release 0.11 and started over - still no difference. So last night I wiped that out again and grabbed last night's CVS, complied and installed it - still no change. Have not read that anyone else is having this problem. I have indeed been applying the .sql updates each time but it seems like a mythtv setting muting the card during a record. Anyone else run 
into this or have an idea of what is going on? Pulling out what little hair I have left all weekend trying to figure out what is up. Ran backend and front end in screen sessions and even snagged some of dmesg - I see no problems and no line saying it was muting audio. Here's some details even though I dont see anything usefull listed: 



--Frontend-- 
Changing from None to None 
Record scheduled on channel 1042 - Channel 42 DSC at 2003/08/17 10:27 to 
10:33 
Input #0, mpeg, from 'rbuf://127.0.0.1:6543/var/video/ringbuf1.nuv': 
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: 5, YOff: 0 
Using XV port 139 
Video timing method: nVidia polling 
Refresh rate: 11765, frame interval: 33366 
Changing from None to WatchingLiveTV 
Your soundcard is not reporting free space correctly. 
Falling back to old method... 
rebuffering (151553 256000) 
Changing from WatchingLiveTV to None 
Input #0, mpeg, from '/var/video/1042_20030817102700_20030817103300.nuv': 
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: 5, YOff: 0 
Using XV port 139 
Video timing method: nVidia polling 
Refresh rate: 11765, frame interval: 33366 
Changing from None to WatchingRecording 
Your soundcard is not reporting free space correctly. 
Falling back to old method... 
Changing from WatchingRecording to WatchingPreRecorded 
>> Player timeout 
Changing from WatchingPreRecorded to None 
Input #0, mpeg, from 'rbuf://127.0.0.1:6543/var/video/ringbuf1.nuv': 
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: 5, YOff: 0 
Using XV port 139 
Video timing method: nVidia polling 
Refresh rate: 11765, frame interval: 33366 
Changing from None to WatchingLiveTV 
Your soundcard is not reporting free space correctly. 
Falling back to old method... 
rebuffering (1 256000) 
Changing from WatchingLiveTV to None 
Changing from None to None 


--Backend-- 
Changing from None to WatchingLiveTV 
Changing from WatchingLiveTV to None 
Changing from None to RecordingOnly 
2003-08-17 10:27:03 adding: mythtv as a player 0 
2003-08-17 10:27:03 adding: mythtv as a player 0 
Changing from RecordingOnly to None 
Input #0, mpeg, from '/var/video/1042_20030817102700_20030817103300.nuv': 
Stream #0.0: Video: mpegvideo, 480x480, 29.97 fps, 16000 kb/s 
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s 
Position map found 
2003-08-17 10:34:07 adding: mythtv as a player 0 


--DMESG-- 
Hpsc: 0x00001, Hfsc: 0x00600 
Setting full NTSC height 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 
saa7115[0]: decoder set norm NTSC 
saa7115[0] set audio: 0x02 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set size 
Hpsc: 0x00001, Hfsc: 0x00600 
Setting full NTSC height 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 
saa7115[0]: decoder set size 
Hpsc: 0x00001, Hfsc: 0x00600 
Setting full NTSC height 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 
saa7115[0]: decoder set size 
Hpsc: 0x00001, Hfsc: 0x00600 
Setting full NTSC height 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder set picture bright=127 contrast=63 saturation=63 hue=0 
saa7115[0]: decoder disable output 
saa7115[0]: decoder enable output 


Only odd looking entry in any of this is: 
"Your soundcard is not reporting free space correctly. 
Falling back to old method..." 

But I have been seeing this with all versions of myth and it has never caused any problms before (I am using the cheap-o on-board audio codec of my SoyoDragon lite mobo). 

   I have had this box up and running (RH9 w/PVR-250 AthlonXP1700+ for months now and this is the first time that a simple upgrade to a new version has caused this problem. One thing of note however: I have Alsa installed but according to the frontend output, it is only using the OSS (is that supposed to be?). There is an ALSA patch listed in the dev list I may try this next to fix the recorded audio. Any help in this would be appreciated as I am quite stumped. It's nice to have audio in a recording :) 


-- -- -- -- -- -- -- -- -- -- --  
Kenneth Dechick 
System Specialist (Unix/Linux) 
Commuity Computer Service 
http://www.medent.com 

Cadstar 
cadstar at onebox.com 
http://www.protoblood.com:84/ 
(can you believe that Adelphia now blocks incoming port 80?!?!? - it's one thing to not want us running websites but to block the port so we CAN'T <unless you get creative with the port #> really bugs me)