[mythtv-users] External Recorder, PID Cache is Empty

Marc Rawji mrawji at gmail.com
Tue Jul 19 05:36:06 UTC 2016


Hello,

I am trying to setup en External Recorder. I wrote my own but ran into
trouble, so I tried using the "mythfilerecorder".

In both cases, I get an error about the PID cache being empty

2016-07-18 22:11:29.140402 E  DTVChan[1](/usr/bin/mythfilerecorder --infile
/home/xxx/recorder/out.ts): SetChannelByString(1): PID cache is empty
2016-07-18 22:11:29.140416 E  TVRec[1]: Failed to set channel to 1.
Reverting to kState_None
2016-07-18 22:11:29.140454 I  TVRec[1]: Changing from WatchingLiveTV to None

my out.ts is an mpegts file, according to mythffprobe.

Input #0, mpegts, from 'out.ts':
  Duration: 00:12:00.78, start: 1.400000, bitrate: 4347 kb/s
    Stream #0:0[0x100]: Video: h264 (Main), yuv420p, 1280x720 [SAR 1:1 DAR
16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x101]: Audio: aac (LC), 48000 Hz, stereo, fltp, 125 kb/s


Channel "1" is mapped to a "No Grabber" source.

I am on ubuntu, running the latest from the PPA,
so 2:0.28.0+fixes.20160714.04650e0-0ubuntu0mythbuntu2

I poked at the code a little, but I am not sure I understand what the PID
cache is for... I think it fails to start because of this line:
https://github.com/MythTV/mythtv/blob/4d24d54ef43164f1325fcbe914450b7dea37e28f/mythtv/libs/libmythtv/recorders/dtvchannel.cpp#L343

I'd appreciate any guidance.

Thank you in advance for your help!
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