[mythtv] Assistance debugging a DVB/PMT tuning problem
Tom Dexter
digitalaudiorock at gmail.com
Sat Jan 26 00:39:44 UTC 2008
On Jan 24, 2008 11:36 AM, Tom Dexter <digitalaudiorock at gmail.com> wrote:
>
> ---------------------------------------------------------
> Transponder PID-Scan...
> ---------------------------------------------------------
> PID found: 0 (0x0000) [SECTION: Program Association Table (PAT)]
> PID found: 49 (0x0031) [PES: ITU-T Rec. H.262 | ISO/IEC 13818-2 or
> ISO/IEC 11172-2 video stream]
> PID found: 52 (0x0034) [PES: private_stream_1]
> PID found: 58 (0x003a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 74 (0x004a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 81 (0x0051) [PES: ITU-T Rec. H.262 | ISO/IEC 13818-2 or
> ISO/IEC 11172-2 video stream]
> PID found: 84 (0x0054) [PES: private_stream_1]
> PID found: 90 (0x005a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 97 (0x0061) [PES: ITU-T Rec. H.262 | ISO/IEC 13818-2 or
> ISO/IEC 11172-2 video stream]
> PID found: 100 (0x0064) [PES: private_stream_1]
> PID found: 122 (0x007a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 1034 (0x040a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 1066 (0x042a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 1082 (0x043a) [SECTION: ISO/IEC 13818-6 reserved]
> PID found: 7424 (0x1d00) [SECTION: ATSC reserved]
> PID found: 7426 (0x1d02) [SECTION: ATSC reserved]
> PID found: 7681 (0x1e01) [SECTION: ATSC reserved]
> PID found: 7682 (0x1e02) [SECTION: ATSC reserved]
> PID found: 8187 (0x1ffb) [SECTION: ATSC reserved]
> PID found: 8191 (0x1fff)
>
> That shows no PMT. Note however that they both have audio and video
> streams at 49 and 52, which is what my dvbscan found, and which works
> in mplayer. I can't imagine what dvbscan is doing to get that without
> a PMT unless it's just using the first audio and video streams it runs
> into.
>
> The broadcaster certainly appears to be doing something strange though.
>
> Tom
>
Wow...I emailed WNJN this morning to explaining the issue and asking
for a technical contact at WNJB in New Brunswick, NJ. I suggested
they forward my email to them if possible.
I haven't heard back, so I don't know if it's related, but today they
started sending the PMT and the station tunes in mythtv perfectly.
Thanks a million for the help Janne. It was actually pretty cool to
learn some stuff I didn't know about MPEG transport streams. I also
know a lot I didn't about some of those tools...always good to know.
Tom
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