Bug #4693
switching channels often results in an erroneous stream
0%
Description
I have a Terratec Cinergy DVB S2 USB tuner that fails switching channels quite often. If you switch to another channel and back, everything works fine most of the times.
A debug log of such a channel switch looks like that:
########## switch to channel "ZDF HD" fails: 2017-10-27 22:30:58.879 [ INFO]:subscription: 0026: "127.0.0.1 [ | Kodi Media Center ]" unsubscribing from "Das Erste HD", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:30:58.879 [ INFO]:mpegts: 11361.75H in Astra - tuning on Montage Technology M88DS3103 : DVB-S #0 2017-10-27 22:30:58.879 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopping 11493.75H in Astra 2017-10-27 22:30:58.880 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopped dvr thread 2017-10-27 22:30:58.881 [ INFO]:subscription: 0024: "epggrab" unsubscribing 2017-10-27 22:30:58.919 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - starting 11361.75H in Astra 2017-10-27 22:30:58.919 [ INFO]:subscription: 0027: "127.0.0.1 [ | Kodi Media Center ]" subscribing on channel "ZDF HD", weight: 150, adapter: "Montage Technology M88DS3103 : DVB-S #0", network: "Astra", mux: "11361.75H", provider: "ZDFvision", service: "ZDF HD", profile="htsp", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:30:59.419 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - status GOOD (SIGNAL | CARRIER | VITERBI | SYNC | LOCK) 2017-10-27 22:30:59.419 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - locked 2017-10-27 22:30:59.511 [WARNING]:tbl-base: pmt: 11361.75H in Astra: invalid checksum (len 146, errors 1) 2017-10-27 22:30:59.613 [WARNING]:tbl-eit: eit: 11361.75H in Astra: invalid checksum (len 1581, errors 1) 2017-10-27 22:30:59.872 [WARNING]:TS: Astra/11361.75H/ZDF HD Transport error indicator (total 1) 2017-10-27 22:30:59.883 [WARNING]:TS: Astra/11361.75H/ZDF HD: H264 @ #6110 Continuity counter error (total 1) 2017-10-27 22:30:59.903 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6123 Continuity counter error (total 1) 2017-10-27 22:30:59.955 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6120 Continuity counter error (total 1) 2017-10-27 22:30:59.966 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6121 Continuity counter error (total 1) 2017-10-27 22:30:59.986 [WARNING]:TS: Astra/11361.75H/ZDF HD: TELETEXT @ #6130 Continuity counter error (total 1) 2017-10-27 22:31:00.007 [WARNING]:TS: Astra/11361.75H/ZDF HD: AC3 @ #6122 Continuity counter error (total 1) 2017-10-27 22:31:00.047 [WARNING]:TS: Astra/11361.75H/ZDF HD: TELETEXT @ #6130 Corrupted PES header (errors 1) 2017-10-27 22:31:01.852 [WARNING]:tbl-base: bat: 11361.75H in Astra: invalid checksum (len 73, errors 1) 2017-10-27 22:31:01.852 [WARNING]:tbl-base: sdt: 11361.75H in Astra: invalid checksum (len 73, errors 1) 2017-10-27 22:31:01.975 [WARNING]:TS: Astra/11361.75H/ZDF HD: DVBSUB @ #6131 Continuity counter error (total 1) 2017-10-27 22:31:08.006 [WARNING]:tbl-base: cat: 11361.75H in Astra: invalid checksum (len 12, errors 1) 2017-10-27 22:31:09.593 [WARNING]:tbl-eit: eit: 11361.75H in Astra: invalid checksum (len 2570, errors 139) 2017-10-27 22:31:09.888 [WARNING]:TS: Astra/11361.75H/ZDF HD: H264 @ #6110 Continuity counter error (total 34636) 2017-10-27 22:31:09.908 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6123 Continuity counter error (total 122) 2017-10-27 22:31:09.928 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6120 Continuity counter error (total 154) 2017-10-27 22:31:09.969 [WARNING]:TS: Astra/11361.75H/ZDF HD: MPEG2AUDIO @ #6121 Continuity counter error (total 125) 2017-10-27 22:31:09.980 [WARNING]:TS: Astra/11361.75H/ZDF HD: AC3 @ #6122 Continuity counter error (total 290) 2017-10-27 22:31:09.990 [WARNING]:TS: Astra/11361.75H/ZDF HD: TELETEXT @ #6130 Continuity counter error (total 154) 2017-10-27 22:31:10.113 [WARNING]:tbl-base: pmt: 11361.75H in Astra: invalid checksum (len 146, errors 11) 2017-10-27 22:31:10.733 [WARNING]:TS: Astra/11361.75H/ZDF HD Transport error indicator (total 11) 2017-10-27 22:31:10.996 [WARNING]:tbl-base: pat: 11361.75H in Astra: invalid checksum (len 116, errors 1) 2017-10-27 22:31:12.381 [WARNING]:TS: Astra/11361.75H/ZDF HD: DVBSUB @ #6131 Continuity counter error (total 18) 2017-10-27 22:31:12.585 [WARNING]:tbl-base: bat: 11361.75H in Astra: invalid checksum (len 73, errors 8) 2017-10-27 22:31:12.585 [WARNING]:tbl-base: sdt: 11361.75H in Astra: invalid checksum (len 73, errors 8) ########## switching to channel "Das Erste HD" works: 2017-10-27 22:31:13.898 [ INFO]:subscription: 0027: "127.0.0.1 [ | Kodi Media Center ]" unsubscribing from "ZDF HD", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:31:13.898 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopping 11361.75H in Astra 2017-10-27 22:31:13.899 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopped dvr thread 2017-10-27 22:31:13.904 [ INFO]:mpegts: 11493.75H in Astra - tuning on Montage Technology M88DS3103 : DVB-S #0 2017-10-27 22:31:13.942 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - starting 11493.75H in Astra 2017-10-27 22:31:13.942 [ INFO]:subscription: 0029: "127.0.0.1 [ | Kodi Media Center ]" subscribing on channel "Das Erste HD", weight: 150, adapter: "Montage Technology M88DS3103 : DVB-S #0", network: "Astra", mux: "11493.75H", provider: "ARD", service: "Das Erste HD", profile="htsp", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:31:14.435 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - status GOOD (SIGNAL | CARRIER | VITERBI | SYNC | LOCK) 2017-10-27 22:31:14.435 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - locked ########## switching back to "ZDF HD" also works now: 2017-10-27 22:31:21.010 [ INFO]:subscription: 0029: "127.0.0.1 [ | Kodi Media Center ]" unsubscribing from "Das Erste HD", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:31:21.010 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopping 11493.75H in Astra 2017-10-27 22:31:21.011 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - stopped dvr thread 2017-10-27 22:31:21.012 [ INFO]:mpegts: 11361.75H in Astra - tuning on Montage Technology M88DS3103 : DVB-S #0 2017-10-27 22:31:21.051 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - starting 11361.75H in Astra 2017-10-27 22:31:21.051 [ INFO]:subscription: 002B: "127.0.0.1 [ | Kodi Media Center ]" subscribing on channel "ZDF HD", weight: 150, adapter: "Montage Technology M88DS3103 : DVB-S #0", network: "Astra", mux: "11361.75H", provider: "ZDFvision", service: "ZDF HD", profile="htsp", hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center" 2017-10-27 22:31:21.541 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - status GOOD (SIGNAL | CARRIER | VITERBI | SYNC | LOCK) 2017-10-27 22:31:21.541 [ DEBUG]:linuxdvb: Montage Technology M88DS3103 : DVB-S #0 - locked
Is the tuner broken?
Is there a way to tell tvheadend to re-tune the channel if the errors don't settle a certain time after channel switching?
I am using tvheadend-4.2.3. The DVB S2 box is:
Bus 001 Device 004: ID 0ccd:0105 TerraTec Electronic GmbH Cinergy S2 Box
[ 4.852805] dw2102: su3000_identify_state
[ 4.852807] dvb-usb: found a 'Terratec Cinergy S2 USB BOX' in warm state.
[ 4.852811] dw2102: su3000_power_ctrl: 1, initialized 0
[ 4.874742] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 4.874914] dvbdev: DVB: registering new adapter (Terratec Cinergy S2 USB BOX)
[ 4.879809] dvb-usb: MAC address: bc:ea:2b:46:13:a5
Thanks,
--leo
Related issues
History
Updated by Mark Clarkstone about 7 years ago
There's a retune option in the tuner config, give that a try.
Updated by Leo Bergolth about 7 years ago
Mark Clarkstone wrote:
There's a retune option in the tuner config, give that a try.
Do you mean the option "# tune repeats"?
I tried it but it doesn't fix the problem.
I guess this option turns on unconditional re-tunes after every channel-switch, regardless whether the first tune had already succeeded or not.
And I believe that the probability of a successful or an erroneous tune is the same on each tune.
So if I set "#tune repeats" to 2, the third (and last) tune could destroy an eventual success of the first or second tune.
I guess I'd rather need a conditional re-tune that is only triggered if the channel switch results in a huge amount of errors.
Updated by Jaroslav Kysela over 6 years ago
- Related to Bug #4368: DVBSky S952 can't find any muxes (scan no data, failed) added