[mythtv] Re: Changing channels via myth protocol from a python

Mudit Wahal mwahal at gmail.com
Fri May 27 16:42:37 UTC 2005 

I was able to run mythfrontend-0.18.1 and talk to backend-0.18 on the
same machine without installing it (adding lib paths in
/etc/ld.so.conf and running ldconfig). Since the version numbers are
so close to each other, nothing in the database has been changed.

I'm able to get all the network:write printfs in the logfile. I think
I'm doing something similar in the python script. But something may be
missing or out of order. Here is a sample log of write calls from the
frontend.

write->9 21 MYTH_PROTO_VERSION 15:
write->9 23 ANN Playback mythtvbe 0:
write->9 36 QUERY_IS_ACTIVE_BACKEND[]:[]mythtvbe:
write->9 21 MYTH_PROTO_VERSION 15:
write->9 23 ANN Playback mythtvbe 0:
write->9 29 GET_NEXT_FREE_RECORDER[]:[]-1:
write->12 21 MYTH_PROTO_VERSION 15:
write->12 23 ANN Playback mythtvbe 0:
write->12 44 QUERY_RECORDER 1[]:[]SETUP_RING_BUFFER[]:[]0:
write->13 23 ANN Playback mythtvbe 0:
write->14 25 ANN RingBuffer mythtvbe 1:
write->12 33 QUERY_RECORDER 1[]:[]SPAWN_LIVETV:
write->12 37 QUERY_RECORDER 1[]:[]GET_PROGRAM_INFO:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 66 QUERY_RECORDER 1[]:[]SEEK_RINGBUF[]:[]0[]:[]0[]:[]0[]:[]0[]:[]2048:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 68 QUERY_RECORDER
1[]:[]SEEK_RINGBUF[]:[]0[]:[]0[]:[]0[]:[]0[]:[]393216:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 39 QUERY_RECORDER 1[]:[]GET_FRAMES_WRITTEN:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 51 QUERY_RECORDER 1[]:[]FILL_POSITION_MAP[]:[]0[]:[]61:
write->12 33 QUERY_RECORDER 1[]:[]IS_RECORDING:
write->12 33 QUERY_RECORDER 1[]:[]IS_RECORDING:
write->12 34 QUERY_RECORDER 1[]:[]GET_FRAMERATE:
write->12 35 QUERY_RECORDER 1[]:[]GET_INPUT_NAME:
write->12 35 QUERY_RECORDER 1[]:[]FRONTEND_READY:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 39 QUERY_RECORDER 1[]:[]GET_FRAMES_WRITTEN:
write->12 47 QUERY_RECORDER 1[]:[]GET_FREE_SPACE[]:[]0[]:[]0:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 26 QUERY_RECORDER 1[]:[]PAUSE:
write->12 41 QUERY_RECORDER 1[]:[]CHANGE_CHANNEL[]:[]1:
write->12 37 QUERY_RECORDER 1[]:[]GET_PROGRAM_INFO:
write->12 37 QUERY_RECORDER 1[]:[]GET_PROGRAM_INFO:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 39 QUERY_RECORDER 1[]:[]GET_FRAMES_WRITTEN:
write->12 53 QUERY_RECORDER 1[]:[]GET_FREE_SPACE[]:[]0[]:[]1114112:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 42 QUERY_RECORDER 1[]:[]CHECK_CHANNEL[]:[]5_1:
write->12 26 QUERY_RECORDER 1[]:[]PAUSE:
write->12 40 QUERY_RECORDER 1[]:[]SET_CHANNEL[]:[]5_1:
write->12 37 QUERY_RECORDER 1[]:[]GET_PROGRAM_INFO:
write->12 37 QUERY_RECORDER 1[]:[]GET_PROGRAM_INFO:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 39 QUERY_RECORDER 1[]:[]GET_FRAMES_WRITTEN:
write->12 47 QUERY_RECORDER 1[]:[]GET_FREE_SPACE[]:[]0[]:[]0:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->13 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RINGBUF[]:[]128000:
write->12 32 QUERY_RECORDER 1[]:[]STOP_LIVETV:
write->13 33 QUERY_RECORDER 1[]:[]DONE_RINGBUF:
write->9 36 QUERY_IS_ACTIVE_BACKEND[]:[]mythtvbe:


On 5/26/05, Mudit Wahal <mwahal at gmail.com> wrote:
> Issac,
> 
> The 0.18.1 binary is linked with all 0.18.1.so libraries. I've added
> the paths where the new libraries are present (in the /etc/ld.so.conf)
> file. Before I did that mythfrontend.0.18.1 was complaining about
> libmythtv.0.18.1.so not found. After the ld.so.conf change and running
> ldconfig, mythfrontend.0.18.1 no longer complains and starts fine.
> 
> ----- in my /etc/ld.so.conf ----
> /myth/packages/mythtv-0.18.1/libs/libmyth
> /myth/packages/mythtv-0.18.1/libs/libavformat
> /myth/packages/mythtv-0.18.1/libs/libavcodec
> /myth/packages/mythtv-0.18.1/libs/libmythtv
> /myth/packages/mythtv-0.18.1/filters
> ---------------------------------------
> 
> I'm only interested in watching Live TV and changing channel/volume.
> The new 0.18.1 binary runs fine. Unfortunately I'm at work so can't
> watch live TV via vnc :( Will have to continue this little experiment
> after I get back home. Right now if I try to watch liveTV, I'm getting
> some xv error messages etc in the logfile, which is understandable as
> there is no graphics device connected on the vnc. Or it may be just a
> configuration issue at the build time (like xv directory not defined
> etc).
> 
> -- current messages in frontend log file -----
> 
> 2005-05-26 13:28:39.995 New DB connection, total: 1
> Total desktop width=640, height=480, numscreens=1
> 2005-05-26 13:28:39.999 Using screen 0, 640x480 at 0,0
> 2005-05-26 13:28:40.001 mythfrontend version: 0.18.1.20050510-1 www.mythtv.org
> 2005-05-26 13:28:40.002 Enabled verbose msgs : important general
> Xlib:  extension "RANDR" missing on display ":1.0".
> DisplaResX: Unable to XRRgetScreenInfo
> Xlib:  extension "RANDR" missing on display ":1.0".
> DisplaResX: Unable to XRRgetScreenInfo
> testdir 1: /root/.mythtv/themes/blue
> testdir 2: /usr/local/share/mythtv/themes/blue
> testdir 1: /root/.mythtv/themes/blue
> testdir 2: /usr/local/share/mythtv/themes/blue
> 2005-05-26 13:28:40.117 Switching to square mode (blue)
> testdir 1: /root/.mythtv/themes/Default
> testdir 2: /usr/local/share/mythtv/themes/Default
> testdir 3: ../menutest/Default
> testdir 4: /usr/local/share/mythtv/
> 2005-05-26 13:28:40.501 Registering Internal as a media playback plugin.
> mythtv: could not connect to socket
> mythtv: No such file or directory
> lirc_init failed for mythtv, see preceding messages
> 2005-05-26 13:28:40.502 Joystick disabled.
> 2005-05-26 13:28:48.071 New DB connection, total: 2
> 2005-05-26 13:28:48.084 Connecting to backend server:
> 192.168.123.3:6543 (try 1 of 5)
> 2005-05-26 13:28:48.096 Using protocol version 15
> 2005-05-26 13:28:48.142 Using protocol version 15
> adding pes stream at pid 0x41 with type 2
> adding pes stream at pid 0x44 with type 129
> 2005-05-26 13:28:49.969 Opening audio device '/dev/dsp'.
> 2005-05-26 13:28:49.969 Opening OSS audio device '/dev/dsp'.
> Xlib:  extension "XVideo" missing on display ":1.0".
> Xlib:  extension "XVideo" missing on display ":1.0".
> Xlib:  extension "XVideo" missing on display ":1.0".
> Xlib:  extension "XVideo" missing on display ":1.0".
> XvQueryExtension failed.
> XvQueryAdaptors failed.
> ***
> * Couldn't find Xv support, falling back to non-Xv mode.
> * MythTV performance will be much slower since color
> * conversion and scaling will be done in software.
> * Consider upgrading your video card or X server if
> * you would like better performance.
> 2005-05-26 13:28:49.982 Couldn't get the color key color, and we need it.
> You likely won't get any video.
> 2005-05-26 13:28:50.779 The realtime priority setting is not enabled.
> 2005-05-26 13:28:50.796 FilterManager: failed to load filter
> 'linearblend', no such filter exists
> 2005-05-26 13:28:50.797 Couldn't load deinterlace filter linearblend
> Xlib:  extension "XFree86-VidModeExtension" missing on display ":1.0".
> 2005-05-26 13:28:50.845 Changing from None to WatchingLiveTV
> Xlib:  extension "XFree86-VidModeExtension" missing on display ":1.0".
> 2005-05-26 13:28:50.939 Video timing method: RTC
> 2005-05-26 13:28:51.082 Non Xv mode only supports 16, 24, and 32 bpp displays
> 2005-05-26 13:28:51.082 VideoOutputXv::Show() called while IsErrored istrue.
> 2005-05-26 13:28:51.082 NVP: Error condition detected in videoOutput
> after Show(), aborting playback.
> 2005-05-26 13:28:51.082 VideoOutputXv::ProcessFrame() called while
> IsErrored is true.
> 2005-05-26 13:28:51.082 NVP: Error condition detected in videoOutput
> before PrepareFrame(), aborting playback.
> 2005-05-26 13:28:51.082 VideoOutputXv::ProcessFrame() called while
> IsErrored is true.
> 2005-05-26 13:28:51.082 NVP: Error condition detected in videoOutput
> before PrepareFrame(), aborting playback.
> 2005-05-26 13:28:51.082 VideoOutputXv::ProcessFrame() called while
> IsErrored is true.
> ====================
> 
> Thanks
> Mudit
> 
> On 5/26/05, Isaac Richards <ijr at case.edu> wrote:
> > On Thursday 26 May 2005 04:13 pm, Mudit Wahal wrote:
> > > Solved the problem by putting some printfs in mythcontext.cpp file in
> > > function QString MythContext::FindThemeDir
> > >
> > > Then simply linked /usr/share/mythtv to /usr/local/share/mythtv :-)
> >
> > That doesn't solve anything.  The binary you're running will be using the
> > libraries from 0.18.  You can't run myth without installing it.  You can't
> > run different versions at the same time without using two different
> > databases.
> >
> > Isaac
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
> >
>

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