https://github.com/bulletmark/epgpurge

A Topfield TMS PVR TAP to purge old EPG entries.
https://github.com/bulletmark/epgpurge

Last synced: 4 months ago
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A Topfield TMS PVR TAP to purge old EPG entries.

• Host: GitHub
• URL: https://github.com/bulletmark/epgpurge
• Owner: bulletmark
• Created: 2011-12-22T08:22:01.000Z (over 14 years ago)
• Default Branch: master
• Last Pushed: 2022-04-29T04:57:00.000Z (about 4 years ago)
• Last Synced: 2024-05-09T08:17:27.465Z (about 2 years ago)
• Language: Makefile
• Homepage:
• Size: 23.4 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# EPGPurge TAP

## Introduction

This is a small TAP program to purge old EPG entries on a Topfield TMS PVR.

It fixes the following problems in the TMS PVR:

1. After each minute boundary, the tap purges the EPG of all program

   entries older than the current + previous program on each channel and

   also ensures the current program is updated to match the current time

   of day. This stops old program info being displayed on the info

   display, and old program info being stored in recordings.

2. Stops the guide display from jumping back a large period as you move

   the cursor up or down the display.

To install the TAP, upload it to the `ProgramFiles/AutoStart` folder on

your PVR using ftp, or copy it via a USB flash stick. There is no

configuration or user interaction required for this tap. It merely runs

in the background and fixes these issues. Ensure you delete the

FixCurrent tap if you had it previously installed, as this tap replaces

it.

I developed this on my Australian TF7100HDPlus model PVR but it should work on

at least all other Australian TMS models, i.e. TRF-2400, TRF-2460, TRF7170, and

TRF7160. I have tested the app using both ICE and FTA EPG data.

Read the [latest

documentation](https://markb.bullet-systems.net/epgpurge.html), [source

code](https://github.com/bulletmark/EPGPurge), or download the [latest

built TAP](https://markb.bullet-systems.net/taps/EPGPurge/EPGPurge.zip).

## Author

- User [bulletmark](https://oztoppy.forumchitchat.com/profile/4648279)

  on the [oztoppy Australia Forum](https://oztoppy.forumchitchat.com).

- User [bulletmark](https://github.com/bulletmark) on [github](https://github.com/).

## License

Copyright (C) 2012 Mark Blakeney. This program is distributed under the

terms of the GNU General Public License.

This program is free software: you can redistribute it and/or modify it

under the terms of the GNU General Public License as published by the

Free Software Foundation, either version 3 of the License, or any later

version.

This program is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the [GNU General

Public License](https://www.gnu.org/licenses/) for more details.

## Change History

**v1.0:**

Original version for guide display, based on [this

tap](https://sourceforge.net/projects/topfieldtapmisc/).

**v1.1-MGB:**

Imported to github and added the following:

1. Also forces EPG purge after returning from playback or timeslip to

   realtime TV.

2. Made code slightly more efficient and made some minor cleanups.

3. Fixed typo bug in SUBSTATE check.

4. Fixed end time range bug. Programs start on the start time and end

   just before the end time, i.e. range = [start, end).

**V2.0 - 2011-12-22:**

Rewrote and renamed my version EPGPurge to add the

following enhancements:

1. Deletes old EPG entries rather than marks them as expired. There is

   no need for old EPG data anyhow and deleting them subsequently makes

   the processing much more efficient as we then only have to process

   typically 2 events per channel each run (previous + current) rather

   than potentially hundreds of old events.

2. The FixCurrent tap converted each programs start and end date+times

   into an internal time number biased against an arbitary epoch.

   However this is unnecessary as we only need to compare date+times

   against current date+time and since the MJDHM format embeds the date

   and time in significant digit order that means we can compare them

   directly and thus save significant CPU overhead avoiding the time

   conversions.

3. Runs just after each minute boundary to purge and adjust the EPG.

   Since the TAP is now much more efficient (running typically only

   2 iterations per channel as per above comment) we can run it each

   minute and catch all "edge" conditions where EPG data is otherwise

   sometimes seen to be out of date.

**V2.1 - 2012-04-13:**

Add check for no EPG data.

**V2.2 - 2012-04-29:**

 Always runs after each minute boundary now.  Runs in all modes, to always

 ensure that the EPG is updated. Apart from the other problems addressed before

 this version, this should also now ensure that recordings capture the correct

 program info data.

**v2.2.1 - 2012-06-20:**

Only do EPG purge on IDLE and KEY events.  I do not know of any problems before

this but FireBird recommends avoiding processing on the other TAP events so may

as well be sure.

**v2.3 - 2013-02-18:**

Added TAPID function to appear in TMSCommander tap list.