[mythtv-users] Recording from an IPTV source

[Jan Ceuleers]

On 27/11/2022 09:49, Jan Ceuleers wrote:
> On 27/11/2022 08:16, Jan Ceuleers wrote:
>> Resulting logfile below; first weird-looking line is
>>
>> Nov 27 07:57:51 hobbiton mythbackend: mythbackend[4402]: W TVRecEvent
>> recorders/ExternalStreamHandler.cpp:1482 (ProcessVer2)
>> ExternSH[1](/usr/bin/mythexternrecorder --conf
>> mythexternrecorder1.conf): ProcessV2('10:LockTimeout?') = 'ERR: Not
>> open' took 2ms <-- NOTE
>> Nov 27 07:57:51 hobbiton mythbackend: mythbackend[4402]: E TVRecEvent
>> recorders/ExternalSignalMonitor.cpp:238 (GetLockTimeout)
>> ExternSigMon[1](): GetLockTimeout: invalid response 'ERR: Not open'
>>
>> Any ideas as to what that means?
> 
> I looked at the source; it comes from this function in
> programs/mythexternrecorder/MythExternRecApp.cpp:
> 
> 
> Q_SLOT void MythExternRecApp::LockTimeout(const QString & serial)
> {
>     if (!Open())
>     {
>         LOG(VB_CHANNEL, LOG_WARNING, LOC +
>             "Cannot read LockTimeout from config file.");
>         emit SendMessage("LockTimeout", serial, "ERR: Not open");
>         return;
>     }
> 
>     if (m_lockTimeout > 0)
>     {
>         LOG(VB_CHANNEL, LOG_INFO, LOC +
>             QString("Using configured LockTimeout of
> %1").arg(m_lockTimeout));
>         emit SendMessage("LockTimeout", serial,
>                          QString("OK:%1").arg(m_lockTimeout));
>         return;
>     }
>     LOG(VB_CHANNEL, LOG_INFO, LOC +
>         "No LockTimeout defined in config, defaulting to 12000ms");
>     emit SendMessage("LockTimeout", serial, QString("OK:%1")
>                      .arg(m_scanCommand.isEmpty() ? 12000 : 120000));
> }
> 
> Looking at the MythExternRecApp::Open method there are only 2
> circumstances in which false is returned, and they are as follows:
> 
>     if (m_fatal)
>     {
>         emit SendMessage("Open", "0", "ERR:Already dead.");
>         return false;
>     }
> 
>     if (m_command.isEmpty())
>     {
>         LOG(VB_RECORD, LOG_ERR, LOC + ": No recorder provided.");
>         emit SendMessage("Open", "0", "ERR:No recorder provided.");
>         return false;
>     }
> 
> But in both cases messages are emitted that I don't see in the log.
> Furthermore:
> 
> - m_fatal only becomes true if there is no RECORDER/command (which there
> obviously is);
> 
> - the command is also not empty

Actually I do see the "Already dead" message, but I still don't get why.