Regression in H264 decoding

[jeanpijon]

Hi Pipelka, I believe I am facing regression problem from https://github.com/pipelka/vdr-plugin-xvdr/issues/41 when switching to HD channel on 0624 with oscam+dvbapi I am getting theese errors:

Nov 15 23:50:21 htpc vdr: [10973] XVDR: Stream: H264 PID: 2010 1920x1080 DAR: 1,78 FPS: 25,000 (parsed: yes)
Nov 15 23:50:21 htpc vdr: [10973] XVDR: Stream: MPEG2AUDIO PID: 2020 48000 Hz, 2 channels, Lang: cze (parsed: yes)
Nov 15 23:50:21 htpc vdr: [10973] XVDR: Stream: AC3 PID: 2070 48000 Hz, 6 channels, Lang: cze (parsed: yes)
Nov 15 23:50:21 htpc vdr: [10973] XVDR-Error: transport error
Nov 15 23:50:22  vdr: last message repeated 710 times
Nov 15 23:50:22 htpc vdr: [10973] XVDR: sync found at offset 1840 (streamtype: AC3 / 4140 bytes in buffer / framesize: 1536 bytes)
Nov 15 23:50:22 htpc vdr: [10973] XVDR-Error: transport error
Nov 15 23:50:22  vdr: last message repeated 410 times
Nov 15 23:50:22 htpc vdr: [10973] XVDR: sync found at offset 686 (streamtype: MPEG2AUDIO / 2082 bytes in buffer / framesize: 576 bytes)
Nov 15 23:50:22 htpc vdr: [10973] XVDR-Error: transport error
Nov 15 23:50:22  vdr: last message repeated 205 times
Nov 15 23:50:22 htpc vdr: [10973] XVDR: sync found at offset 1684 (streamtype: AC3 / 4246 bytes in buffer / framesize: 1536 bytes)
Nov 15 23:50:22 htpc vdr: [10973] XVDR-Error: transport error
Nov 15 23:50:23  vdr: last message repeated 219 times
Nov 15 23:50:23 htpc vdr: [10973] XVDR: sync found at offset 282 (streamtype: MPEG2AUDIO / 2218 bytes in buffer / framesize: 576 bytes)
Nov 15 23:50:23 htpc vdr: [10973] XVDR-Error: transport error
Nov 15 23:50:23  vdr: last message repeated 327 times
Nov 15 23:50:23 htpc vdr: [10973] XVDR: sync found at offset 64 (streamtype: AC3 / 4140 bytes in buffer / framesize: 1536 bytes)

I am 100%sure, that this is not because of antenna - I've just connected to the same cable standalone set-top-box and HD is decoded fine.

I would be glad, if someone can look at it... I am able to supply more info if requested...

Thanks a lot Jan

[pipelka]

It looks like a reception problem. If it's a regression, please tell me which version worked for you.

Regards Alex

[jeanpijon]

Sorry for confusion, I read ticket, which you closed (https://github.com/pipelka/vdr-plugin-xvdr/issues/41) and I think, this is exactly the same thing. I know, that it looks like a reception problem, but I am 100% sure, that reception is OK. moreover, it does this only on one transponder... I would give you a streamdump, but unfortunatelly I don't know exactly how to make it...

[pipelka]

Please make a recording of this channel and check if it's playing fine. Give me a bit more infos when this problem surfaced first. Maybe you updated vdr, dvbapi or xvdr?

[jeanpijon]

I am using vdr 2.1.6, latest git of DVBAPI and XVDR, oscam r9965. It started when they changed something on TP, at least encoding from QAM to 8PSK and FEC from 3/4 to 5/6... I have XBMC Gotham 13.2 as frontend with latest xvdr addon. If I record that corrupted chanell in xbmc and afterwards will try to play it back. it does look the same, not correct video data...

[pipelka]

If the recording is also corrupted it is a reception problem. The recording is done entirely within vdr (there isn't any demuxing done by xvdr).

I suspect it's a problem of your DVB device. Maybe you are able to check with different hardware.

[juriad]

I had problems with multipe "XVDR-Error: transport error" and sometimes it even fails to decode channel. What helped me was to restart the server until it starts working. I supose that the problem is caused by the card (TBS6981 in my case). Everything is in the latest stable versions.