[mythtvnz] HDHomerun and EIT/EPG/MHEG

[Pieter De Wit]

On Fri, 27 Jul 2012, Stephen Worthington wrote:

> On Thu, 26 Jul 2012 18:29:35 +1200, you wrote:
>
>> Hi Guys,
>>
>> I have "just" joined the HDHomerun club and, like most, are now missing
>> program data. I have looked at a few options and I can't seem to get
>> "any" to work:
>>
>> tv_grab_nz-py:
>>
> [snip]
>> So - I believe I have few options:
>>
>> 1) Get tv_grab_nz-py to work
>> 2) Setup my hdhomerun as a dvb device and supply the xml to the public
>> as well - or some other method to get the program data OTA
>> 3) Find a source that has all the channels
>>
>> Did I miss something ?
>>
>> Cheers !
>>
>> Pieter
>
> To get EPG for channels only available in your area, you will need to
> run mhegepgsnoop and merge the data for those channels with the rest
> of the downloaded EPG.  I was doing that for ChoiceTV until it turned
> up in the nzepg.org download.  I run my EPG gathering in a script I
> wrote for myself, and that script runs mythfilldatabase afterwards.
> Then mythfilldatabase runs my modified version of tv_grab_nz.py which
> gets its data from my web server where my script left the EPG data. My
> mother's MythTV box also gets its EPG from that internal web server.
>
> This is the script I used to run mhegepgsnoop and then split out the
> ChoiceTV data:
>
> #!/bin/bash
>
> # DVB-T multiplex frequency (kHz)
> DVB_T_FREQ=594000
>
> # Adapter number of DVB-T card.
> ADAPTER=2
>
> # Output file to store the xmltv EPG data.
> OUTPUT_FILE=/tmp/xmltv.xml
>
> # Temp directory name.
> TEMP_DIR=/tmp/mhegepgsnoop
>
>
> PWD=`pwd`
>
> if [ -e "$OUTPUT_FILE" ] && [ -f "$OUTPUT_FILE" ] ; then
>    rm "$OUTPUT_FILE"
> fi
>
> # Get the MHEG5 EPG data from the DVT-T multiplex.
> dvbtune -f $DVB_T_FREQ -qam 64 -gi 16 -cr 3_4 -bw 8 -tm 8 -m -c
> $ADAPTER 2>&1 &
> DVBTUNE_PID=$!
> sleep 1
> mhegepgsnoop.py -zp -d /dev/dvb/adapter${ADAPTER}/demux0 -o
> $OUTPUT_FILE
> kill $DVBTUNE_PID
>
> # Extract the ChoiceTV channel data only.
> mkdir $TEMP_DIR
> cd $TEMP_DIR
> tv_split -o %channel.xml.not $OUTPUT_FILE
> mv choicetv.freeviewnz.tv.xml.not $OUTPUT_FILE
> rm *.not
>
> cd $PWD
> rmdir $TEMP_DIR
>
>
> The main EPG script called this script, then used tv_cat to merge the
> mhegepgsnoop data with the downloaded data.  In your case, since you
> need several channels, I would replace the "mv
> choicetv.freeviewnz.tv.xml.not" line above with a tv_cat command to
> merge the files for each of the channels you want, something like:
>
> tv_cat --output $OUTPUT_FILE <channel_a>.xml.not <channel_b>.xml.not
> <channel_c.xml.not>
>
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>
I see - thanks for the info - I need to get dvbhomerun to work (or hack 
together my own C app....hhhmmmm)

Question thou - why not grab all the channels from your DVB-T ?