Stream Mapparr

A Dispatcharr plugin that automatically matches and assigns streams to channels based on advanced fuzzy matching, quality prioritization, and OTA callsign recognition.

Recommendation

It is strongly recommended to use the Channel Maparr Plugin before using this plugin. Running Channel Maparr first to standardize your channel names will significantly improve matching accuracy.

⚠️ Important: Backup Your Database

Before installing or using this plugin, it is highly recommended that you create a backup of your Dispatcharr database. This plugin makes significant changes to your channel and stream assignments.

Click here for instructions on how to back up your database.

Features

• Advanced Fuzzy Matching: Automatically finds and assigns streams to channels using an advanced fuzzy-matching engine (fuzzy_matcher.py).
• Unlimited Stream Support: Fetches and processes ALL available streams regardless of quantity (no 10,000 stream limit).
• Enhanced OTA Callsign Matching: Uses a robust *_channels.json database for superior callsign extraction and matching for Over-The-Air broadcast channels.
• Multi-Stream Assignment: Assigns all matching streams to each channel (e.g., 4K, FHD, HD versions), sorted by quality.
• Quality Prioritization: Sorts matched streams by quality (4K → FHD → HD → (H) → (F) → (D) → SD → Slow).
• Channel Visibility Management: Automatically enables/disables channels based on stream assignments and duplicate detection.
• Channel Database Integration: Uses *_channels.json files for robust OTA and cable channel identification.
• Customizable Ignore Tags: Filter out unwanted tags during matching.
• Profile & Group Filtering: Target specific channel profiles and groups.
• Preview Mode: Dry-run CSV export to review matches before applying changes.
• CSV Export Management: Built-in cleanup tool to delete old export files.
• Real-time Updates: WebSocket-based frontend refresh for immediate visual feedback.
• Comprehensive Logging: Detailed matching logic and debug information.

Requirements

• Active Dispatcharr installation
• Admin username and password for API access
• A Channels Profile other than "All" (Profile Documentation)
• Multiple streams of the same channel available in your setup
• fuzzy_matcher.py (matching engine) - included
• *_channels.json files (channel database) - included

Installation

1. Log in to Dispatcharr's web UI
2. Navigate to Plugins
3. Click Import Plugin and upload the plugin zip file
4. Enable the plugin after installation

Settings Reference

Setting	Type	Default	Description
Fuzzy Match Threshold	number	85	Minimum similarity score (0-100) for fuzzy matching. Higher values require closer matches.
Dispatcharr URL	string	-	Full URL of your Dispatcharr instance (e.g., http://192.168.1.10:9191)
Dispatcharr Admin Username	string	-	Username for API authentication
Dispatcharr Admin Password	password	-	Password for API authentication
Profile Name	string	-	Name of an existing Channel Profile to process (e.g., "Primary", "Sports")
Channel Groups	string	-	Comma-separated group names to process, or leave empty for all groups
Ignore Tags	string	-	Comma-separated tags to ignore during matching (e.g., 4K, [4K], [Dead])
Visible Channel Limit	number	1	Number of channels per matching group that will be visible and have streams added

Usage Guide

Step-by-Step Workflow

1. Configure Settings

   • Enter your Dispatcharr URL, username, and password
   • Adjust the Fuzzy Match Threshold slider (85 is a good default)
   • Specify an existing Profile Name (cannot be "All")
   • Optionally specify Channel Groups (leave empty to process all)
   • Optionally configure Ignore Tags
   • Set Visible Channel Limit (default: 1 channel per matching group)
   • Click Save Settings

2. Load and Process Channels

   • Click Run on Load/Process Channels
   • The plugin loads channels from the specified profile and groups
   • Fetches all available streams (handles pagination automatically with no limit)
   • Review the summary showing channel and stream counts

3. Preview Changes (Dry Run)

   • Click Run on Preview Changes (Dry Run)
   • Exports a CSV to /data/exports/stream_mapparr_preview_YYYYMMDD_HHMMSS.csv
   • Review matched streams for each channel
   • Shows which channels will be updated vs skipped
   • Identifies channels without matches

4. Add Streams to Channels

   • Click Run on Add Stream(s) to Channels
   • Adds all matched streams to each channel (sorted by quality)
   • Only updates channels within the visible channel limit
   • Enables updated channels in the profile
   • Triggers real-time frontend refresh via WebSocket
   • Exports results to /data/exports/stream_mapparr_update_YYYYMMDD_HHMMSS.csv

5. Manage Channel Visibility (Optional)

   • Click Run on Manage Channel Visibility
   • Disables all channels in the profile
   • Enables only the single highest-priority, eligible channel from each matching group
   • Useful for cleaning up duplicate channels
   • Triggers real-time frontend refresh via WebSocket
   • Exports visibility report to /data/exports/stream_mapparr_visibility_YYYYMMDD_HHMMSS.csv

6. Clear CSV Exports (Optional)

   • Click Run on Clear CSV Exports
   • Deletes all CSV files created by this plugin from /data/exports/
   • Shows list of deleted files (up to 10 listed with count of additional files)
   • Useful for cleaning up old reports and freeing disk space

Matching Logic

Stream-Mapparr v0.4 uses a new FuzzyMatcher engine and a channel database for all matching.

1. Channel Grouping: Channels are grouped by a 'group key'.

   • OTA Channels: Grouped by callsign (e.g., OTA_WSBT).
   • Standard Channels: Grouped by their cleaned name (e.g., HBO).

2. Channel Prioritization: Within each group, channels are sorted by quality tags (e.g., [4K] > [HD]) and then by channel number (ascending).

3. Matching: The plugin uses the highest priority channel from the group (e.g., CBS - IN South Bend (WSBT) [4K] or HBO [4K]) as the "search query".

   • OTA Matching: If the channel is OTA, the FuzzyMatcher looks up its callsign (WSBT) in the *_channels.json database and searches all streams for that callsign.
   • Standard Matching: If not OTA, the FuzzyMatcher cleans the channel name (e.g., to HBO) and uses advanced fuzzy matching (token sorting, similarity ratios) to find the best match from the stream list (e.g., matching HBO to HBO US).

4. Multi-Stream Collection: Once a match is found (e.g., stream name "HBO US"), the plugin gathers all quality variations of that matched stream (e.g., HBO US [4K], HBO US [HD], HBO US [SD]).

5. Assignment: These collected streams are sorted by quality and assigned to the high-priority channel(s) in the group, up to the Visible Channel Limit.

Channel Grouping and Priority

Channels are grouped by callsign (OTA) or cleaned name (regular):

• Within each group, channels are sorted by quality tag priority:
  • [4K] → [FHD] → [HD] → [SD] → [Unknown] → [Slow] → No tag
• Then by channel number (ascending)
• Only the highest priority channels (up to Visible Channel Limit) receive streams

Quality Sorting

Matched streams are automatically sorted by quality precedence:

• 4K: [4K], (4K), 4K
• FHD: [FHD], (FHD), FHD
• HD: [HD], (HD), HD, (H)
• SD: [SD], (SD), SD
• Other: (F), (D)
• Slow: Slow, [Slow], (Slow)

Duplicate Channel Handling

Channels in Profile:

• CBS - AL Birmingham (WIAT) [FHD] ← Highest priority (enabled, receives streams)
• CBS - AL Birmingham (WIAT) [HD] ← Lower priority (skipped)
• CBS - AL Birmingham (WIAT) [Slow] [HD] ← Lower priority (skipped)

Result: With Visible Channel Limit set to 1, only the [FHD] channel receives streams and is visible.

Action Reference

Action	Description
Load/Process Channels	Load channels from specified profile/groups and fetch all available streams (unlimited)
Preview Changes (Dry Run)	Export CSV showing which streams will be matched to each channel
Add Stream(s) to Channels	Apply all matched streams to channels, enabling highest priority channels in each group
Manage Channel Visibility	Disable all channels, then enable only the single highest-priority, eligible channel from each matching group
Clear CSV Exports	Delete all CSV export files created by this plugin to free up disk space

File Locations

• Processing Cache: /data/stream_mapparr_processed.json
• Preview Export: /data/exports/stream_mapparr_preview_YYYYMMDD_HHMMSS.csv
• Results Report: /data/exports/stream_mapparr_update_YYYYMMDD_HHMMSS.csv
• Visibility Report: /data/exports/stream_mapparr_visibility_YYYYMMDD_HHMMSS.csv
• Plugin Files:
  • /data/plugins/stream_mapparr/plugin.py
  • /data/plugins/stream_mapparr/__init__.py
  • /data/plugins/stream_mapparr/fuzzy_matcher.py (Matching Engine)
  • /data/plugins/stream_mapparr/*_channels.json (Channel Database)

CSV Export Format

Preview CSV (stream_mapparr_preview_...csv)

Column	Description
will_update	Yes if channel will be updated, No if skipped
channel_id	Internal Dispatcharr channel ID
channel_name	Channel name
channel_name_cleaned	The cleaned name used for matching
channel_number	Channel number
matched_streams	Number of streams matched
match_reason	How the match was found (e.g., Fuzzy match (exact, score: 100))
stream_names	Semicolon-separated list of matched stream names

Results CSV (stream_mapparr_update_...csv)

Column	Description
channel_name	Channel name that was updated
stream_names	Semicolon-separated list of added stream names
matched_streams	Number of streams added

Visibility Report CSV (stream_mapparr_visibility_...csv)

Column	Description
channel_id	Internal Dispatcharr channel ID
channel_name	Channel name
stream_count	Number of streams attached to channel
reason	Why channel was enabled/disabled (e.g., 2+ streams, Duplicate, Attached)
enabled	Yes if channel is visible, No if hidden

Troubleshooting

Common Issues

"Profile Name must be configured"

• Enter an existing profile name in the settings
• Profile name is case-sensitive
• Cannot use "All" - must create a separate profile

"None of the specified groups were found"

• Verify group names are spelled correctly (case-sensitive)
• Check available groups in the error message
• Leave field empty to process all groups

OTA channels not matching streams

• Verify channel name format: NETWORK - STATE City (CALLSIGN)
• Example: CBS - IN South Bend (WSBT) [HD]
• Check that callsign exists in stream names
• Review logs for FuzzyMatcher and callsign messages
• Ensure *_channels.json files are present in the plugin directory

Too many duplicate channels visible

• Run "Manage Channel Visibility" action
• Adjust "Visible Channel Limit" setting (default: 1)
• Only highest priority channels per matching group will remain visible

Channels not matching streams

• Run Channel Mapparr first to standardize channel names
• Adjust the "Fuzzy Match Threshold" slider (try a lower value like 80)
• Check that streams exist for your channels
• Use Preview mode to see matching details in logs

Too many false positives

• Increase the "Fuzzy Match Threshold" slider (try 90 or 95)
• Use Ignore Tags to filter out common unwanted words
• Check logs for matching logic details

Frontend not updating after changes

• Plugin uses WebSocket-based updates for real-time refresh
• If changes are not immediately visible, refresh your browser
• Check logs for "Frontend refresh triggered via WebSocket" message

Many old CSV export files

• Use the "Clear CSV Exports" action to delete all old reports
• This will free up disk space in /data/exports/

"Plugin 'stream-mapparr' not found" error

• Log out of Dispatcharr
• Refresh your browser or close and reopen it
• Log back in and try again

Updating the Plugin

To update Stream-Mapparr from a previous version:

1. Remove Old Version

   • Navigate to Plugins in Dispatcharr
   • Click the trash icon next to the old Stream-Mapparr plugin
   • Confirm deletion

2. Restart Dispatcharr

   • Log out of Dispatcharr
   • Restart the Docker container:

     docker restart dispatcharr
     

3. Install New Version

   • Log back into Dispatcharr
   • Navigate to Plugins
   • Click Import Plugin and upload the new plugin zip file
   • Enable the plugin after installation

4. Verify Installation

   • Check that the new version number appears in the plugin list
   • Reconfigure your settings if needed
   • Run "Load/Process Channels" to test

FAQ

How do I improve matching accuracy?

Option 1: Use Channel Mapparr Plugin (Recommended)

• Install and run the Channel Mapparr Plugin
• This automatically standardizes channel names across your entire setup
• Provides consistent naming that Stream-Mapparr can reliably match

Option 2: Adjust Fuzzy Match Threshold

• Navigate to the plugin settings
• If you are missing matches, try a lower value (e.g., 80).
• If you are getting bad/incorrect matches, try a higher value (e.g., 90 or 95).

How many streams can the plugin handle?

Stream-Mapparr has no stream limit. The plugin automatically handles pagination and will fetch all available streams regardless of quantity. It has been successfully tested with libraries containing 10,000+ streams.

Why use Visible Channel Limit?

The Visible Channel Limit setting controls how many channels per group receive streams and remain visible. For example, if you have:

• CBS - AL Birmingham (WIAT) [FHD]
• CBS - AL Birmingham (WIAT) [HD]
• CBS - AL Birmingham (WIAT) [SD]

With a limit of 1, only the highest priority channel ([FHD]) receives streams and stays visible. This prevents duplicate channels from cluttering your guide.

What happens to existing stream assignments?

When you run "Add Stream(s) to Channels", the plugin:

• Removes all existing stream assignments from matched channels
• Adds all the new matched streams (sorted by quality)
• Only affects channels within the Visible Channel Limit

Channels outside the limit or without matches are left unchanged.

Can I undo changes?

The plugin exports CSV reports for every action:

• Preview reports show what will change
• Results reports show what was changed
• Visibility reports show which channels were enabled/disabled

You can use these reports to manually revert changes if needed. However, there is no built-in "undo" function.

How do I clean up old export files?

Use the "Clear CSV Exports" action to delete all CSV files created by Stream-Mapparr. This removes files from /data/exports/ that start with stream_mapparr_ and helps free up disk space.

Debugging Commands

# Check plugin files
docker exec dispatcharr ls -la /data/plugins/stream_mapparr/

# Monitor plugin activity
docker logs -f dispatcharr | grep -i stream_mapparr

# View processing cache
docker exec dispatcharr cat /data/stream_mapparr_processed.json | jq

# Check fuzzy matching activity
docker logs -f dispatcharr | grep -i "FuzzyMatcher"

# Check match type and score
docker logs -f dispatcharr | grep "match_type"

# Check CSV exports
docker exec dispatcharr ls -lh /data/exports/stream_mapparr_*