DVB-T2 TS parsing errors

Added by Václav Nováček over 6 years ago

OS: Mageia 6 x64, kernel 4.14.50
Tvheadend: 4.3-1288
Tuner: MyGica T230
Player: Kodi 17.6, 18; MPC-HC (no matter which player)

Hello,
I would like to ask for a help, I cannot find source of following errors.
They occur only within one mux (all channels) in Czech transitional network 12 on 554MHz (Domažlice), all the others are fine.
On a Samsung TV there is no problem at all.
I can't determine whether the problem is with tuner, signal or Tvheadend.
The main symptomps are loss os video for few second, sound is lost until playback is restarted. This occurs repeatedly.
Could you please point me in the right direction?

čen 29 18:04:56 tvheadend[27298]: htsp: 2001:0:0:0:0:0:0:ebe6: Welcomed client software: Kodi Media Center (HTSPv29)
čen 29 18:04:56 tvheadend[27298]: htsp: 2001:0:0:0:0:0:0:ebe6 [ Kodi Media Center ]: Identified as user ''
čen 29 18:05:00 tvheadend[27298]: mpegts: 554MHz in CZ - tuning on Silicon Labs Si2168 #1 : DVB-T #0
čen 29 18:05:00 tvheadend[27298]: subscription: 000F: "2001:0:0:0:0:0:0:ebe6 [  | Kodi Media Center ]" subscribing on channel "Seznam.cz TV | T2", weight: 100, adapter: "Silicon Labs Si2168 #1 : DVB-T #0", network: "CZ", mux: "554MHz", provider: "CESKE RADIOKOMUNIKACE", service: "Seznam.cz TV | T2", profile="htsp", hostname="2001:0:0:0:0:0:0:ebe6", username="2001:0:0:0:0:0:0:ebe6", client="Kodi Media Center" 
čen 29 18:06:01 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 1)
čen 29 18:06:01 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 1)
čen 29 18:06:01 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 1)
čen 29 18:06:01 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Corrupted PES header (errors 1)
čen 29 18:06:03 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 5571720, last = 5404320
čen 29 18:06:05 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 5784120, last = 5636520
čen 29 18:06:06 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 5956920, last = 5814720
čen 29 18:06:12 tvheadend[27298]: tsfix: transport stream AAC, DTS discontinuity. DTS = 6468480, last = 5360640
čen 29 18:07:02 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 691)
čen 29 18:07:02 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 102)
čen 29 18:07:03 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 25)
čen 29 18:07:04 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 11169720, last = 10969920
čen 29 18:07:25 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 772)
čen 29 18:07:25 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 119)
čen 29 18:07:26 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 29)
čen 29 18:07:36 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 941)
čen 29 18:07:36 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 148)
čen 29 18:07:36 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 33)
čen 29 18:07:36 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: Invalid start code 65:09:53
čen 29 18:08:28 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 1004)
čen 29 18:08:31 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 168)
čen 29 18:08:31 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: Invalid start code 05:04:00
čen 29 18:08:31 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 35)
čen 29 18:08:31 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 18970920, last = 18747720
čen 29 18:08:33 tvheadend[27298]: tbl-eit: eit: 554MHz in CZ: invalid checksum (len 1015, errors 1)
čen 29 18:08:33 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 19129320, last = 19032120
čen 29 18:08:33 tvheadend[27298]: tbl-base: sdt: 554MHz in CZ: invalid checksum (len 835, errors 1)
čen 29 18:08:34 tvheadend[27298]: tbl-base: pmt: 554MHz in CZ: invalid checksum (len 81, errors 1)
čen 29 18:08:34 tvheadend[27298]: tbl-base: pat: 554MHz in CZ: invalid checksum (len 88, errors 1)
čen 29 18:08:37 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: DTS and PCR diff is very big (2496675045)
čen 29 18:08:38 tvheadend[27298]: tsfix: transport stream AAC, DTS discontinuity. DTS = 19570560, last = 10930560
čen 29 18:08:38 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 1298)
čen 29 18:08:41 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 607)
čen 29 18:08:41 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 84)
čen 29 18:08:42 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Corrupted PES header (errors 21)
čen 29 18:08:43 tvheadend[27298]: tbl-eit: eit: 554MHz in CZ: invalid checksum (len 616, errors 205)
čen 29 18:08:43 tvheadend[27298]: tbl-base: nit: 554MHz in CZ: invalid checksum (len 105, errors 1)
čen 29 18:08:44 tvheadend[27298]: tbl-base: sdt: 554MHz in CZ: invalid checksum (len 835, errors 17)
čen 29 18:08:45 tvheadend[27298]: tbl-base: pat: 554MHz in CZ: invalid checksum (len 88, errors 8)
čen 29 18:08:47 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: DTS and PCR diff is very big (2330038)
čen 29 18:08:47 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342: DTS and PCR diff is very big (1842598)
čen 29 18:08:49 tvheadend[27298]: tbl-base: pmt: 554MHz in CZ: invalid checksum (len 81, errors 5)
čen 29 18:08:51 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342: DTS and PCR diff is very big (1847603134)
čen 29 18:08:51 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 1129)
čen 29 18:08:51 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 152)
čen 29 18:08:53 tvheadend[27298]: tbl-eit: eit: 554MHz in CZ: invalid checksum (len 387, errors 421)
čen 29 18:08:53 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 1305)
čen 29 18:08:54 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: Invalid start code 7c:36:58
čen 29 18:08:54 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341: DTS and PCR diff is very big (12928824)
čen 29 18:08:54 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342: DTS and PCR diff is very big (12174744)
čen 29 18:08:55 tvheadend[27298]: tbl-base: sdt: 554MHz in CZ: invalid checksum (len 835, errors 30)
čen 29 18:08:55 tvheadend[27298]: tbl-base: pat: 554MHz in CZ: invalid checksum (len 88, errors 13)
čen 29 18:08:57 tvheadend[27298]: tbl-base: nit: 554MHz in CZ: invalid checksum (len 105, errors 3)
čen 29 18:08:57 tvheadend[27298]: parser: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342: DTS and PCR diff is very big (4185735)
čen 29 18:08:59 tvheadend[27298]: tsfix: transport stream HEVC, DTS discontinuity. DTS = 21494520, last = 21368520
čen 29 18:09:08 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2 Transport error indicator (total 1386)
čen 29 18:09:08 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: HEVC @ #5341 Continuity counter error (total 1583)
čen 29 18:09:08 tvheadend[27298]: TS: CZ/554MHz/Seznam.cz TV | T2: AAC @ #5342 Continuity counter error (total 198)
čen 29 18:09:11 tvheadend[27298]: tsfix: transport stream AAC, DTS discontinuity. DTS = 22560000, last = 19645440

Thanks!

Replies (3)

RE: DVB-T2 TS parsing errors - Added by Václav Nováček over 6 years ago

According my observation it seems the main problem is signal quality. Those signal losses sometimes happen also on the TV. MyGica tuner is probably less sensitive than TV tuner, therefore there is more drop-outs. I'll try another antenna with a LTE filter.
I have also found out that Kodi has problems with recovery from those signal losses, sometimes sound missing, another time video is frozen for few minutes. Media Player Classic is more resistant to those drop-outs, it recovers while few seconds.

RE: DVB-T2 TS parsing errors - Added by Pablo R. over 6 years ago

I am also habing a lot of continuity erros with HEVC codec, I am starting to think is coding related.

RE: DVB-T2 TS parsing errors - Added by Václav Nováček over 6 years ago

I don't think so, I recently bought a Xbox One USB Tuner and it's much better, almost no drop-outs.

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