[mythtv] Unable to change channels

[Michael Kedl]

Do you have "Correct" full duplex sound working?

The same thing happened to me until I switch to ALSA.

Mike

On Mon, 2002-12-30 at 12:32, Matthew Burnham wrote:
> This one's been bugging me since I started playing with MythTV, but
> being as I didn't get a watchable picture anyway, I didn't pursue it
> far. I've now got a reasonable picture by running in a window rather
> than fullscreen (it doesn't jump and stutter now), but am unable to
> change channel or card input - any presses of up, down or 'c' seem to
> 'lock up' mythtv.
> 
> I tried to trace the problem by seeing what happens when I try to change
> channel, and it seems it gets stuck in:
>   while (!activenvp->GetPause())
> 
> I'm planning to take a look inside GetPause(), but wondered if anyone
> else had come across this problem before? Also, what unit is
> usleep(300000) in? It seems awfully big, unless its microseconds...
> 
> -- log with tv_play.cpp modified as below --
> 
> mbb@danew:~/cvs/MC$ mythtv
> connecting to backend server: localhost:6543
> Changing from None to WatchingLiveTV
> player: Can't open audio device: /dev/dsp
> open audio:: Device or resource busy
> Over/underscanning. V: 0.000000, H: 0.000000, XOff: 0, YOff: 0
> Using XV port 46
> TV::ChangeChannel
> activenvp:1087791112 paused:1
> activenvp->Pause()
> mythtv: Fatal IO error: client killed
> 
> -- end log --
> 
> -- tv_play.cpp modified ChangeChannel function --
> 
> void TV::ChangeChannel(bool up)
> {
>     printf("TV::ChangeChannel\n");
>     printf("activenvp:%i paused:%i\n", activenvp, paused);
>     if (activenvp == nvp)
>     {
>         if (paused)
>             osd->EndPause();
>         paused = false;
>     }
> 
>     printf("activenvp->Pause()\n");
>     activenvp->Pause();
>     while (!activenvp->GetPause())
>         usleep(5);
>     printf("got pause\n");
> 
>     printf("activerecorder/rbuffer...\n");
>     activerecorder->Pause();
>     activerbuffer->Reset();
>     activerecorder->ChangeChannel(up);
>     printf("done\n");
> 
>     activenvp->ResetPlaying();
>     while (!activenvp->ResetYet())
>         usleep(5);
> 
>     printf("sleep(300000)...\n");
>     usleep(300000);
>     printf("done\n");
> 
>     if (activenvp == nvp)
>         UpdateOSD();
> 
>     activenvp->Unpause();
> 
>     channelqueued = false;
>     channelKeys[0] = channelKeys[1] = channelKeys[2] = ' ';
>     channelkeysstored = 0;
>     printf("TV::ChangeChannel end\n");
> }
> 
> -- end log --
> 
> -- 
> Mat Burnham
>  
> 
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev@snowman.net
> http://www.snowman.net/mailman/listinfo/mythtv-dev
>