[mythtv-users] MythPhone causes mythfrontend to lock??

[Jim Kusznir]

Hello all:

I've been having continous problems with the 0.16 version of mythphone 
causing the frontend to lock.

I have a usb webcam set up (with mythphone set to use /dev/video1), and 
mythpone correctly shows my local video.  I'm connected to FWD (Free 
World Dialup).  Everything is fine in this idle state (showing my local 
video, registered with FWD but not in a call).

When I place a video call to another FWD user (who's using the Pulver 
Communicator under WinXP with a web cam and proper local video), it 
often works for at least a few seconds (Occasionally even for a few 
minutes).  I'm able to see and hear the other person, and the other 
person sees me (but can't hear me -- that's a different problem, 
though).  The call lasts anywhere from 1 sec to 10 minutes, but at some 
point the frontend freezes completely.  Interestingly enough, I can 
continue to hear the other person, but both of my video windows are 
frozen, and the video she recieves is frozen (based on what the other 
person described of the remote client, it is not recieving video signals 
anymore).  My only recourse at this point is to kill mythfrontend and 
relaunch it.

I've played a bit with the resolutions and fps and found the values do 
seem to have a signifiant effect on call duration (most resolutions and 
fps over 10 cause the frontend to freeze more quickly; fps below 10 
don't seem to effect freeze rate, but can often take way too long to 
fully draw the remote end).

When I run mythfrontend in a terminal and collect its stderr output, I 
get output like:

[h263 @ 0xb7a761d0]illegal ac vlc code at 0x7
[h263 @ 0xb7a761d0]Error at MB: 84
[h263 @ 0xb7a761d0]concealing 2147483614 errors
Error decoding frame; 1443
[h263 @ 0xb7a761d0]illegal dc 0 at 0 4
[h263 @ 0xb7a761d0]illegal dc 128 at 1 4
[h263 @ 0xb7a761d0]I cbpc damaged at 9 4
[h263 @ 0xb7a761d0]Error at MB: 57
[h263 @ 0xb7a761d0]concealing 2147483647 errors
[h263 @ 0xb7a761d0]I cbpy damaged at 0 7
[h263 @ 0xb7a761d0]Error at MB: 84
[h263 @ 0xb7a761d0]concealing 2147483647 errors
[h263 @ 0xb7a761d0]Error at MB: 84
[h263 @ 0xb7a761d0]concealing 2147483647 errors
[h263 @ 0xb7a761d0]illegal dc 0 at 0 8
[h263 @ 0xb7a761d0]concealing 9 errors
[h263 @ 0xb7a761d0]Error at MB: 96
[h263 @ 0xb7a761d0]concealing 2147483647 errors
[h263 @ 0xb7a761d0]Error at MB: 84
[h263 @ 0xb7a761d0]concealing 2147483647 errors
[h263 @ 0xb7a761d0]I cbpy damaged at 0 8
[h263 @ 0xb7a761d0]Error at MB: 96
[h263 @ 0xb7a761d0]concealing 2147483647 errors

These messages generally occur at 2-4 lines per second, and occur the 
entire duration of the call.  I see no errors that hint at or relate to 
the freeze.

So...questions...

I've recently retrieved the CVS versions of mythtv and associated 
modules.  I'm still working on a clean way to install them on my system 
(gentoo).  In any case, I haven't been able to deturmine if anything's 
been done to mythphone that might address this issue.

I'd be greatful of any assistance one can offer...

--Jim