Tag: mythtv

MythTV Verbose Logging

In the process of troubleshooting UPNP/DLNA on our MythTV server, I learned that you can send logging verbosity settings while the server is running. Using the mythbackend binary with the –setverbose flag, you can specify logging level. For example:

mythbackend --setverbose http:debug,upnp:debug

What items can you set levels on? It’ll conveniently tell you — “all” or “none” override existing settings, everything else will update the current logging levels (i.e. if I’ve already got http and upnp in debug, I can use “–setverbose audio:debug” to add audio to the list of things in debug mode).

[mythuser@server /var/log/mythtv/]# mythbackend -v help
Verbose debug levels.
Accepts any combination (separated by comma) of:

all - ALL available debug output
audio - Audio related messages
channel - Channel related messages
chanscan - Channel Scanning messages
commflag - Commercial detection related messages
database - Display all SQL commands executed
decode - MPEG2Fix Decode messages
dsmcc - DSMCC carousel related messages
dvbcam - DVB CAM debugging messages
eit - EIT related messages
file - File and AutoExpire related messages
frame - MPEG2Fix frame messages
general - General info
gpu - GPU OpenGL driver messages
gpuaudio - GPU Audio Processing messages
gpuvideo - GPU video rendering messages
gui - GUI related messages
http - HTTP Server messages
idle - System idle messages
jobqueue - JobQueue related messages
libav - Enables libav debugging
media - Media Manager debugging messages
mheg - MHEG debugging messages
most - Most debug (nodatabase,notimestamp,noextra)
network - Network protocol related messages
none - NO debug output
osd - On-Screen Display related messages
playback - Playback related messages
process - MPEG2Fix processing messages
record - Recording related messages
refcount - Reference Count messages
rplxqueue - MPEG2Fix Replex Queue messages
schedule - Scheduling related messages
siparser - Siparser related messages
socket - socket debugging messages
system - External executable related messages
timestamp - Conditional data driven messages
upnp - UPnP debugging messages
vbi - VBI related messages
xmltv - xmltv output and related messages

To disable debugging, use “mythbackend –setverbose none”

Zap2XML 503 Error

We’ve been using zap2xml.pl to pull TV listings into our MythTV installation for years. Yesterday, we noticed there wasn’t much scheduled to record. When I went to investigate it today, I found that there weren’t listings past Thursday. Running the zap2xml script manually, I see a bunch of 503 Backend unavailable errors. Checked the URL and, yeah, that’s a legit error.

So I had to quickly switch to a different source for listings. I found a Github project that generates the XML file we need. The same mythfilldatabase command (/usr/bin/mythfilldatabase –file –sourceid 2 –xmlfile /tmp/listings.xml) pulled in the data without error. And, now that there are programs listed, MythTV plans to record things again.