id summary reporter owner description type status priority milestone component version severity resolution keywords cc mlocked 9087 IPTV recorder dropping packets anaerin@… danielk "My IPTV recorder(s) have started dropping packets, leading to playback errors and messages from commflagging like: {{{ 2010-10-06 23:08:35.083 [mp2 @ 0x30df980]Header missing 2010-10-06 23:08:35.121 AFD Error: Unknown audio decoding error 2010-10-06 23:08:38.364 [mpeg2video @ 0x30df980]mb incr damaged 2010-10-06 23:08:38.404 [mpeg2video @ 0x30df980]00 motion_type at 3 8 2010-10-06 23:08:38.437 [mpeg2video @ 0x30df980]00 motion_type at 0 9 2010-10-06 23:08:38.471 [mpeg2video @ 0x30df980]00 motion_type at 6 10 2010-10-06 23:08:38.504 [mpeg2video @ 0x30df980]invalid mb type in B Frame at 14 11 2010-10-06 23:08:38.538 [mpeg2video @ 0x30df980]00 motion_type at 0 12 2010-10-06 23:08:38.571 [mpeg2video @ 0x30df980]00 motion_type at 0 13 2010-10-06 23:08:38.613 [mpeg2video @ 0x30df980]00 motion_type at 5 14 2010-10-06 23:08:38.655 [mpeg2video @ 0x30df980]00 motion_type at 0 15 2010-10-06 23:08:38.697 [mpeg2video @ 0x30df980]00 motion_type at 0 16 2010-10-06 23:08:38.739 [mpeg2video @ 0x30df980]00 motion_type at 7 17 2010-10-06 23:08:38.781 [mpeg2video @ 0x30df980]00 motion_type at 5 18 2010-10-06 23:08:38.823 [mpeg2video @ 0x30df980]00 motion_type at 0 19 2010-10-06 23:08:38.865 [mpeg2video @ 0x30df980]00 motion_type at 0 20 2010-10-06 23:08:38.906 [mpeg2video @ 0x30df980]00 motion_type at 0 21 2010-10-06 23:08:38.948 [mpeg2video @ 0x30df980]mb incr damaged 2010-10-06 23:08:38.982 [mpeg2video @ 0x30df980]invalid mb type in B Frame at 16 23 2010-10-06 23:08:39.015 [mpeg2video @ 0x30df980]00 motion_type at 1 24 2010-10-06 23:08:39.057 [mpeg2video @ 0x30df980]00 motion_type at 0 25 2010-10-06 23:08:39.091 [mpeg2video @ 0x30df980]00 motion_type at 0 26 2010-10-06 23:08:39.124 [mpeg2video @ 0x30df980]00 motion_type at 0 27 2010-10-06 23:08:39.166 [mpeg2video @ 0x30df980]00 motion_type at 2 28 2010-10-06 23:08:39.208 [mpeg2video @ 0x30df980]mb incr damaged 2010-10-06 23:08:39.260 [mp2 @ 0x30df980]Header missing 2010-10-06 23:08:39.300 AFD Error: Unknown audio decoding error 2010-10-06 23:08:42.259 [mpeg2video @ 0x30df980]ac-tex damaged at 20 11 2010-10-06 23:08:42.304 [mp2 @ 0x30df980]Header missing 2010-10-06 23:08:42.342 AFD Error: Unknown audio decoding error 2010-10-06 23:08:45.717 [mpeg2video @ 0x30df980]00 motion_type at 9 18 2010-10-06 23:08:45.782 [mp2 @ 0x30df980]Header missing 2010-10-06 23:08:45.816 AFD Error: Unknown audio decoding error 2010-10-06 23:08:48.769 [mpeg2video @ 0x30df980]invalid mb type in P Frame at 0 29 2010-10-06 23:08:48.811 [mp2 @ 0x30df980]Header missing 2010-10-06 23:08:48.848 AFD Error: Unknown audio decoding error 2010-10-06 23:08:52.168 [mpeg2video @ 0x30df980]invalid mb type in P Frame at 7 16 2010-10-06 23:08:52.206 [mpeg2video @ 0x30df980]mb incr damaged 2010-10-06 23:08:52.239 [mpeg2video @ 0x30df980]ac-tex damaged at 6 15 2010-10-06 23:08:52.273 [mpeg2video @ 0x30df980]ac-tex damaged at 9 15 2010-10-06 23:08:52.315 [mpeg2video @ 0x30df980]ac-tex damaged at 1 16 2010-10-06 23:08:52.356 [mpeg2video @ 0x30df980]ac-tex damaged at 5 17 }}} Playback of the stream in mplayer and VLC are perfectly fine and flawless, but playback of Myth's recorded files are not, indicating that packets are being dropped or discarded inside Myth's backend when the program is being recorded. I am using: {{{ MythTV Version : 26719 MythTV Branch : trunk Network Protocol : 63 Library API : 0.23.20100917-1 QT Version : 4.7.0 Options compiled in: linux debug using_alsa using_jack using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_dvb using_firewire using_frontend 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_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python using_mythtranscode using_opengl using_vdpau using_ffmpeg_threads using_live using_mheg }}} I'll see what I can do with verbose debugging, but is there anything I should be looking for specifically? Any debugging options I should enable for better feedback as to what's going on? Logging with -v important,recording gives: {{{ 2010-10-09 15:03:11.450 scheduler: Scheduled items: Scheduled 834 items in 12.1 = 0.05 match + 12.04 place 2010-10-09 15:03:11.455 TVRec(1): ASK_RECORDING 1 0 0 0 2010-10-09 15:03:11.515 ProgramInfo(2005_20101009150300.mpg), Error: GetPlaybackURL: '2005_20101009150300.mpg' should be local, but it can not be found. 2010-10-09 15:03:11.516 TVRec(1): Changing from None to RecordingOnly 2010-10-09 15:03:11.526 TVRec(1): HW Tuner: 1->1 2010-10-09 15:03:11.670 AutoExpire: CalcParams(): Max required Free Space: 4.0 GB w/freq: 14 min 2010-10-09 15:03:11.686 Program #1 not found in PAT! Program Association Table PSIP tableID(0x0) length(13) extension(0x9c9) version(1) current(1) section(0) last_section(0) tsid: 2505 programCount: 1 program number 505 has PID 0x 23 data 0x 1 0xf9 0xe0 0x23 2010-10-09 15:03:11.686 But there is only one program in the PAT, so we'll just use it 2010-10-09 15:03:11.858 TVRec(1): rec->GetPathname(): '/myth/tv/2005_20101009150300.mpg' 2010-10-09 15:03:12.680 scheduler: Started recording 2010-10-09 15:03:14.004 commflag: Commercial Detection Starting: ""The Simpsons"":""Saturdays of Thunder"" recorded from channel 2005 at 2010-10-09T15:03:00 2010-10-09 15:03:14.181 Using runtime prefix = /usr 2010-10-09 15:03:14.181 Using configuration directory = /home/mythtv/.mythtv 2010-10-09 15:03:14.182 Empty LocalHostName. 2010-10-09 15:03:14.326 New DB connection, total: 1 2010-10-09 15:03:14.333 Closing DB connection named 'DBManager0' 2010-10-09 15:03:15.255 Using protocol version 63 2010-10-09 15:03:18.977 AutoExpire: CalcParams(): Max required Free Space: 4.0 GB w/freq: 14 min 2010-10-09 15:03:31.857 Using protocol version 63 2010-10-09 15:03:31.858 RecBase(1:/dev/video): GetKeyframePositions(476,9223372036854775807,#2) out of 23 2010-10-09 15:08:01.701 scheduler: Scheduled items: Scheduled 834 items in 12.8 = 0.00 match + 12.77 place --(At this point, I cancelled the recording) 2010-10-09 15:08:51.886 TVRec(1): Changing from RecordingOnly to None 2010-10-09 15:08:51.897 scheduler: Finished recording: The Simpsons ""Saturdays of Thunder"": channel 2005 2010-10-09 15:08:57.260 Preview Error: Encountered problems running '/usr/bin/mythpreviewgen --size 0x0 --chanid 2005 --starttime 20101009150300 > /dev/null' 2010-10-09 15:08:57.265 commflag: Commercial Detection Unknown: ""The Simpsons"":""Saturdays of Thunder"" recorded from channel 2005 at 2010-10-09T15:03:00 (0 commercial break(s)) 2010-10-09 15:09:04.689 scheduler: Last message repeated 1 times: Finished recording: The Simpsons ""Saturdays of Thunder"": channel 2005 2010-10-09 15:09:04.693 scheduler: Scheduled items: Scheduled 833 items in 12.7 = 0.00 match + 12.74 place }}} But there appears to be nothing untoward or out of place happening there, so I'm not sure if that helps or not. It's not being dropped at the NIC or kernel, as both NICs report 0 dropped packets, and as mentioned neither MPlayer nor VLC have any issues with dropped packets." defect closed minor unknown MythTV - Recording Master Head low Invalid IPTV recorder packet drop broken 0