[mythtv-users] HD recording lose the audio on France 2 HD

Alain mythuser at alain.homeunix.org
Tue Jul 30 10:48:50 UTC 2013


Hi,

    When I watch liveTV on France 2 HD, it all works fine (except for 
core dump on exit, see below). But if I schedule a manual recording, 
then the recording doesn't have any audio. Even if I watch it while it 
is still recording. If I record from liveTV, then go and watch the 
recording as it still records, I have sound. The symptoms are the same 
either when watched on the backend or a frontend. It really seems to be 
related to the manual recording; but given that there is no on-air 
program, I can only record using manual recording.
   This only happens on some HD channels but is consistent. When it 
happens, there is no audio menu available.

France 2 HD has the following characteristics based on MythTV :
E-AC-3 Dolby
5.1 audio
H.264 MPEG-4
1080i HD

It works correctly on Arte HD, though sometime the sound hiccups when 
there is music playing. It has the following characteristics:
MP2 MPEG
Stereo Audio
H.264 MPEG-4
1080i HD

    On the back-end server, when I exit from watching this channel 
(France 2 HD, LiveTV) or a recording on that channel, then mythfrontend 
always crashes after I exit.  But it doesn't fail on a frontend running 
the nearly same version of Linux connected to the same backend.

Linux frontend 3.8.0-26-generic #38-Ubuntu SMP Mon Jun 17 21:46:08 UTC 
2013 i686 i686 i686 GNU/Linux
Linux backend 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:30 UTC 
2013 i686 athlon i686 GNU/Linux
     I just upgraded to the release below and I get the same results.
Linux backend 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:19:35 UTC 
2013 i686 athlon i686 GNU/Linux

2013-07-30 11:47:48.384076 I  TV: Changing from WatchingLiveTV to None
2013-07-30 11:47:48.384748 I  TV: Exiting main playback loop.
2013-07-30 11:47:48.386592 C  Received Segmentation fault: Code 1, PID 
-1931256459, UID 0, Value 0x00000000
----
2013-07-30 11:54:39.438303 I  TV: Changing from WatchingPreRecorded to None
2013-07-30 11:54:39.438358 I  TV: Exiting main playback loop.
2013-07-30 11:54:39.445584 C  Received Segmentation fault: Code 1, PID 
-1834816210, UID 656812077, Value 0x3132323334333332
Segmentation fault (core dumped)

  On the backend, I'm connected using HDMI to the TV and the audio is 
using the stereo output of the PC to the home cinema. On the frontend, 
I'm using a DVI output and stereo speakers.

   So what can I do about this?

MythTV Version : v0.26.0-37-g340b5d4
MythTV Branch : fixes/0.26
Network Protocol : 75
Library API : 0.26.20120822-1
QT Version : 4.8.3
Options compiled in:
  linux profile use_hidesyms using_alsa using_oss using_pulse 
using_pulseoutput using_backend using_bindings_perl 
using_bindings_python using_bindings_php using_crystalhd using_dvb 
using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr 
using_iptv using_ivtv using_joystick_menu using_libcec using_libcrypto 
using_libdns_sd using_libxml2 using_lirc using_mheg using_opengl_video 
using_qtwebkit using_qtscript using_qtdbus using_v4l2 using_x11 
using_xrandr using_xv using_bindings_perl using_bindings_python 
using_bindings_php using_mythtranscode using_opengl using_vaapi 
using_vdpau using_ffmpeg_threads using_live using_mheg using_libass 
using_libxml2



Alain
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