[mythtv-users] Firewire Recording via RNG-110 not working

[Jeff Bryner]

I can confirm this box does work..matter of fact it's the only comcast
box that has worked reliably for me.

My setup:
Distro: gentoo 2.6.32-gentoo-r7

mythbackend --version
Please attach all output as a file in bug reports.
MythTV Version   : 27077
MythTV Branch    : branches/release-0-23-fixes
Network Protocol : 23056
Library API      : 0.23.1.201000710-1
QT Version       : 4.6.3
Options compiled in:
 linux profile using_oss using_alsa using_backend using_dvb
using_firewire using_frontend using_glx_proc_addr_arb using_hdhomerun
using_hdpvr using_iptv using_ivtv using_joystick_menu using_lirc
using_mheg using_opengl_video using_opengl_vsync using_qtdbus
using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc
using_xvmcw using_bindings_perl using_bindings_python using_opengl
using_vdpau using_ffmpeg_threads using_libavc_5_3 using_live using_mheg

I manually applied these two patches to get it to recognize the PACE RNG110:
http://svn.mythtv.org/trac/changeset/25608
http://svn.mythtv.org/trac/ticket/8601

libraries:

emerge -s libiec61883 libraw1394 libavc1394
*  media-libs/libiec61883
      Latest version available: 1.1.0
      Latest version installed: 1.1.0
      Size of files: 358 kB
      Homepage:      http://www.linux1394.org
      Description:   library for capturing video (dv or mpeg2) over the
IEEE 1394 bus
      License:       || ( LGPL-2.1 GPL-2 )

*  sys-libs/libraw1394
      Latest version available: 2.0.5
      Latest version installed: 2.0.5
      Size of files: 379 kB
      Homepage:      http://ieee1394.wiki.kernel.org/
      Description:   library that provides direct access to the IEEE
1394 bus
      License:       LGPL-2.1

*  sys-libs/libavc1394
      Latest version available: 0.5.3
      Latest version installed: 0.5.3
      Size of files: 347 kB
      Homepage:      http://www.linux1394.org/
http://sourceforge.net/projects/libavc1394/
      Description:   library for the 1394 Trade Association AV/C
(Audio/Video Control) Digital Interface Command Set
      License:       LGPL-2.1


I'm not using the 6200ch program for channel changing, just native myth.
I was priming the firewire manually, etc,etc, but the changes applied
above seem to have fixed my issues.

Hope it helps!

Jeff.


On 10/31/10 21:57, Debabrata Banerjee wrote:
> This is my experience as well. Addition debugging found that that
> mythbackend is looking for signal lock by verifying a proper PAT/PMT
> table, which it cant find. Using "dvbsnoop -s ts -if file.m2t |grep PID"
> on the transport stream captured by test-mpeg2 shows that the bulk of
> the packets have a 3rd PID which looks invalid (0x1fff). The stream
> seems perfectly playable so I don't know if the check is just
> unnecessary, as mplayer plays it just fine.
> 
> I'm using a patch right now to rebuild these two tables so that
> mythbackend will get a lock, and it seems to be working as it looks like
> I'm getting perfect video. Don't know why it's not in the main source tree.
> 
> --------------------------------------------------
> From: "Jens Holzhaeuser" <Jens.Holzhaeuser at gmx.net>
> Sent: Sunday, August 15, 2010 1:13 PM
> To: <mythtv-users at mythtv.org>
> Subject: [mythtv-users] Firewire Recording via RNG-110 not working
> 
>> I believe my firewire setup in the OS (Linux, kernel 2.6.34.1, debian
>> testing)
>> is correct and working, however MythTV (tags/release-0-23-1, debian
>> multimedia)
>> is not recording (0 byte files). Haven't found any helpful hints in the
>> list archive or by general googling. The STB (RNG-110) seems to supply
>> a valid MPG stream via firewire.
>>
>> Setup Details:
>>
>> - single myth FE/BE, has been working for years fine with
>>   Clear QAM via pcHDTV5500 (LiveTV, recording), and still
>>   does now after setting up the firewire device.
>> - Comcast supplied RNG-110, setup with P2P; firewire_tester
>>   reports success consistently, test_mpeg2 works consistently
>>   in creating mpg files that mplayer plays just fine (so no 5c
>>   flag, at least for the channels I tested with), all tested with
>>   mythtv user (no permission problems).
>>   Followed pretty much http://www.mythtv.org/wiki/FireWire for all
>>   of that.
>> - mythbackend set up with the device, connected to video source,
>>   channels imported, mythfilldatabase, no problem here.
>> - I tried setting the STB up in the backend as a "generic" device,
>>   and changing channels with 6200ch (works), 100 and 400 Mbps.
>>   As well per another post I found as a DCT6200 with no channelchanger
>>   script (works, too), and 400Mps.
>>
>> Problem: Mythtv changes the RNG-110 to the right channel (confirmed)
>>   and starts recoding (so it says), but I end up with 0Byte files in
>>   LiveTV and scheduled recordings. LiveTV OSD shows "partial lock" only
>>   and no video. Different Mbps settings make no difference.
>>
>> Some (hopefully) relevant backend logs (-v important,channel,record),
>> set up as a 6200, are attached to this email.
>> The file Mythtv is recoding does exist, but it is and stays empty:
>>
>> -rw-r--r--  1 mythtv mythtv    0 Aug 15 12:32 5062_20100815123258.mpg
>>
>> I am thinking I am probably missing something obvious, but I have no idea
>> at the moment what. Any pointers appreciated.
>>
>> Thanks a bunch,
>>
>>        Jens
>>
>>
>> MythTV Version   : 0.23.1
>> MythTV Branch    : tags/release-0-23-1
>> Network Protocol : 23056
>> Library API      : 0.23.1.201000710-1
>> QT Version       : 4.6.3
>> Options compiled in:
>> linux release using_oss using_alsa using_pulse using_jack
>> using_pulseoutput using_backend using_directfb using_dvb
>> using_firewire using_fribidi using_frontend using_glx_proc_addr_arb
>> using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu
>> using_libfftw3 using_lirc using_mheg using_opengl_video
>> using_opengl_vsync using_qtdbus using_qtwebkit using_v4l using_x11
>> using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw
>> using_bindings_perl using_bindings_python using_opengl using_vdpau
>> using_ffmpeg_threads using_libavc_5_3 using_live using_mheg
>>
>>
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