User Jobs

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Revision as of 19:21, 12 November 2009 by Juski (talk | contribs) (Adding a User Job: Removed instructions on manually manipulating the database. This is not recommended)

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User Jobs are customized tasks which can act on MythTV recordings. A MythTV system currently supports up to four User Jobs.

Adding a User Job

There are two ways to add a User Job to the system:

1) In the mythtv-setup program (pages 7 & 9 of the General menu page)

2) By using Mythweb Settings | MythTV settings table and editing

UserJob# & UserJobDesc#

Important Note: If you use the MythWeb method for setting up a user job, you have to restart mythbackend for the changes to take effect. (Theoretically if you are doing it via MythTV-Setup, then mythbackend isn't running anyway.)

User Job arguments

A user job is just a program or script which is passed some arguments to tell it what recording to perform work on. Either the channel and start time, or the directory and filename, should be sufficient to uniquely identify the recording.

Options for User Jobs on the Backend
Option Description
%CHANID% Channel ID
%STARTTIME% Start Time of the Recording
%DIR% Path to the recording directory
%FILE% The file name
%STARTTIME% In the format yyyyMMddhhmmss
%STARTTIMEISO% In the ISO date format YYYY-MM-DD hh:mm:ss
%JOBID% The id of this job in the mythconverg jobqueue table

Information on completion percentage of a running job, and on results of a completed job, is stored in the comment column of the jobqueue table in the mythconverg database.

User Job Examples

Command Description
/usr/bin/mythcommflag -s %STARTTIME% -c %CHANID% --gencutlist Imports the flagged commercials into the cutlist
/usr/bin/mythcommflag --queue --gencutlist -f %FILE% Imports the flagged commercials into the cutlist
copy_and_transcode Copies a recording before transcoding it, honoring the cutlist
ipod_export Exports recordings in a video iPod compatible format
nuvexport --ffmpeg --infile="%FILE%" --path=/myth/exports/PocketPC --height=240 --width=320 --mode=xvid --deinterlace --nonoise_reduction --nice=19 Exports a program to Pocket PC sized Xvid using nuvexport. Exports recordings in formats useful for PDAs, MDAs, Smartphones and Palms
RemoveCommercials Script to remove commercials
dpg_export Converts an mpg recording to a format that can be played in the Nintendo DS moonshell
Cutting_Music_Videos Make multiple named cuts from a single recording (the hard way ;) ).
Rockbox_Export Export recordings to small mpegs with or without commercials, suitable for use with Rockbox[1]. These examples are tailored for the screen and CPU capabilities of the SanDisk Sansa e200 series of media players. Export recordings to MythVideo