Bad picture breakup on live TV

John Aldridge

Strange one here...

I'm running tvheadend 4.2.8-34~g24a2f59e9 on a Raspberry Pi 4 (running Raspbian GNU/Linux 10 (buster)) with a Raspberry Pi TV HAT, connected by gigabit ethernet to a Windows 10 PC running Kodi 20.0 (20.0.0).

If I watch the "Tour De France Live" coverage on ITV4 during the afternoon, live, then I get very bad blocky picture (see attachment), enough to make it almost unwatchable.

If instead I set a recording going, and then start watching that recording 15 seconds later, the picture is perfectly good.

I have not noticed the problem on any other programme or channel.

Any ideas?

Jonas Lang

Check your antenna connector both at the HAT end and all the way along. Ensure that your antenna is situated to maximise the signal. Try retuning too.

DaveH

Also perhaps worth trying a different program for viewing, ideally on a different computer.

So programs on other channels on the same multiplex at the same time are fine? Does this happen on multiple days?

John Aldridge

If the problem was the antenna or tuning, wouldn't that affect both live viewing and recording?

I'll check other channels on the same multiplex, and also try another viewing program, when I'm next at home during the afternoon.

Thanks for your suggestions!
John

Jonas Lang

The Pi TV HAT can display some weird symptoms including what yours is suffering from. Try what I advised one user here that worked albeit a different issue https://tvheadend.org/d/8313-raspberry-pi-tvhat-sudden-loss-of-adapter

DaveH

John Aldridge wrote:

> If the problem was the antenna or tuning, wouldn't that affect both live viewing and recording?

You'd think so, but the error correction may be different for the live and recorded paths (more time to do more on the recording?) so that might give different results.

John Aldridge

John Aldridge wrote:

> I'll check other channels on the same multiplex, and also try another viewing program, when I'm next at home during the afternoon.

Other channels on the same multiplex seem fine.

Interestingly, Windows Media Player is fine too. I even had both Kodi and WMP playing the live programme at the same same time, and only Kodi suffered from breakup.

It is noticeable that the problem is most severe when the picture is "busy" (e.g. showing a closeup of several cyclists pedalling at once).

I guess I should probably try discussing this on a Kodi forum instead of this one!

Cheers,
John

DaveH

John Aldridge wrote:

> I guess I should probably try discussing this on a Kodi forum instead of this one!

Thanks for the update, and yes you might have more luck finding an answer elsewhere. I'd be interested to know the answer if you do find one. :)

Issa Issa

hello i got the same error but i got an error log :

023-09-08 20:23:29.660 tsfix: transport stream EAC3, DTS discontinuity. DTS = 33528960, last = 33405120 2023-09-08 20:23:38.471 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 322) 2023-09-08 20:23:38.471 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 48) 2023-09-08 20:23:51.355 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 335) 2023-09-08 20:23:55.210 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 14) 2023-09-08 20:23:57.837 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 49) 2023-09-08 20:23:57.837 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 41) 2023-09-08 20:23:57.837 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 31) 2023-09-08 20:24:02.615 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 342) 2023-09-08 20:24:07.284 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 15) 2023-09-08 20:24:08.650 tsfix: transport stream EAC3, DTS discontinuity. DTS = 37036800, last = 36912960 2023-09-08 20:24:08.871 tsfix: transport stream EAC3, DTS discontinuity. DTS = 37054080, last = 36910080 2023-09-08 20:24:13.635 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 352) 2023-09-08 20:24:14.373 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 33) 2023-09-08 20:24:26.350 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 357) 2023-09-08 20:24:27.030 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 16) 2023-09-08 20:24:27.678 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 51) 2023-09-08 20:24:27.678 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 43) 2023-09-08 20:24:36.468 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 366) 2023-09-08 20:24:36.865 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 34) 2023-09-08 20:24:39.408 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 53) 2023-09-08 20:24:39.408 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 44) 2023-09-08 20:24:40.912 tsfix: transport stream EAC3, DTS discontinuity. DTS = 39936960, last = 39571200 2023-09-08 20:24:47.258 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 379) 2023-09-08 20:24:53.547 http: 192.168.1.90: using ticket f514c498ec3e18eaee5bd4be00f81e82027725fb for /stream/service/b0eec43f6d377408e3af595caa6b5fac 2023-09-08 20:24:53.548 subscription: 0009: "HTTP" subscribing to service "France/546MHz/TF1", weight: 100, adapter: "Afatech AF9033 (DVB-T) #0 : DVB-T #0", network: "France", mux: "546MHz", provider: "SMR6", profile="pass", hostname="192.168.1.90", username="issa2018", client="VLC/3.0.18 LibVLC/3.0.18" 2023-09-08 20:24:55.379 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 36) 2023-09-08 20:24:57.793 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 387) 2023-09-08 20:24:57.793 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 54) 2023-09-08 20:24:58.268 subscription: 0001: "192.168.1.90 [ issa2018 | Kodi Media Center ]" unsubscribing from "TF1", hostname="192.168.1.90", username="issa2018", client="Kodi Media Center" 2023-09-08 20:24:59.615 htsp: 192.168.1.90 [ issa2018 | Kodi Media Center ]: Disconnected 2023-09-08 20:25:07.988 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 397) 2023-09-08 20:25:15.537 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 18) 2023-09-08 20:25:25.632 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 406) 2023-09-08 20:25:37.816 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 413) 2023-09-08 20:25:49.414 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 424) 2023-09-08 20:25:56.884 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 56) 2023-09-08 20:25:56.884 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 45) 2023-09-08 20:25:57.394 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 19) 2023-09-08 20:25:59.714 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 433) 2023-09-08 20:26:00.497 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 38) 2023-09-08 20:26:07.642 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 20) 2023-09-08 20:26:07.659 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 58) 2023-09-08 20:26:07.659 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 47) 2023-09-08 20:26:12.473 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 443) 2023-09-08 20:26:19.777 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 60) 2023-09-08 20:26:19.777 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 49) 2023-09-08 20:26:24.573 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 448) 2023-09-08 20:26:27.216 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 41) 2023-09-08 20:26:32.748 TS: France/546MHz/TF1: EAC3 @ #131 Continuity counter error (total 62) 2023-09-08 20:26:32.748 TS: France/546MHz/TF1: EAC3 @ #130 Continuity counter error (total 50) 2023-09-08 20:26:32.929 TS: France/546MHz/TF1: DVBSUB @ #150 Continuity counter error (total 22) 2023-09-08 20:26:37.511 TS: France/546MHz/TF1: H264 @ #120 Continuity counter error (total 457) 2023-09-08 20:26:37.511 TS: France/546MHz/TF1: EAC3 @ #132 Continuity counter error (total 42)