Winamp Media Library



Plugin struct definition

  1. Delete Winamp Media Library
  2. Winamp Media Library Location
  • Plugins work by defining a struct full of functions for Winamp to call. For Media Library plugins, there are three functions.

This plugin adds your Winamp's media library an explorer-like filebrowser feature, it recognizes hard drives, audio and mp3 (data) disks, removable drives (memory cards, pendrives, and most of mp3 players), and network drives. Now it's able to open and edit m3u playlists (as they were folders). Or open the Media Library window, and load a playlist via the Playlists view. Playlist Editing The Winamp playlist organizes your music files, your videos, favorite internet radio stations and all of your media resources into a single, intuitive interface.

  1. Init - called after your plugin is loaded. We need an Init() function (rather than having the plugin doing init is the winampGetMediaLibraryPlugin function) because Winamp needs to give YOU data before you can really do your initialization stuff
  2. Quit - duh
  3. MessageProc. This is a function that the Winamp calls when certain events happen, such as someone activating your treeview node in the media library, or someone invoking the send-to menu

Delete Winamp Media Library

  • You communicate with Winamp one of two basic ones
  1. By using SendMessage and sending Winamp or the Media Library window custom messages which are defined in Winamp/wa_ipc.h (for Winamp HWND) and gen_ml/ml.h (for Media Libary HWND). This is the 'old' way of doing things but even some newer APIs are still built on this mechanism.
  2. By retrieving pointers to objects from the Wasabi Service Manager. Winamp has a bunch of APIs that you can grab, and plugins can add additional features that you might want to use. Examples of useful Wasabi objects are the Local Media API (which lets you query against the media library), the Application API (let's you get version #, build #, path to winamp settings folder, etc), and the Playlist Manager API (lets you parse playlists, among other things)

ml_xmlex is probably the most useful example of the bunch. ml_ stands for media library plugin. __declspec(dllexport) is a magic keyword for Visual C++ that means that the DLL 'exports' this function, meaning that a program that loads the DLL can locate and call this function. Winamp goes through and loads ml_*.dll plugins, looks for 'winampGetMediaLibraryPlugin' and if it it exists it calls it. From that function you are supposed to return a struct that defines your plugin. It has the plugin name, some function pointers and some data that winamp will populate with information that'll be helpful to you, like winamp's HWND (window handle).

winampMediaLibraryPlugin is defined in gen_ml/ml.h which is one ugly beast of a filebenski> reupload to File:WinampMediaLibraryPlugin.pnghttp://shup.com/Shup/57721/10872016431-ml_xmlex-Microsoft-Visual-C__-%5Bdesign%5D-ml.h.png

So you supply 'init', 'quit' and 'MessageProc' functions as well as a description. Samsung note 5 phone. Winamp calls Init(), at which point ml_xmlex does two things

  1. Gets the all-important Wasabi Service Manager object
  2. tells the media library to add a node to the treeview for itself File:Ml xmlex in ml.pnghttp://shup.com/Shup/57726/10872016155-Main-Window.png

Winamp Media Library Location

Plugins can manifest themselves in many ways (or be completely invisible!), just this media library plugin is a good starting point because you don't have to write too much busy-work GUI code.

Winamp crash scanning media library

For Media Library plugins, when the media library needs your plugin (e.g. when the user clicked on you in the media library) it calls your message procedure. xmlview.cpp line 147 is the message procedure. this plugin is only handling one message which is to create a view. there are other messages like 'do you want to be on the send-to menu' but this example is keeping it simple.

Retrieved from 'http://wiki.winamp.com/index.php?title=Media_Library_Plugin&oldid=61082'

Best tools for mac os. Face it, your library location might change over time. When you’re using Winamp and don’t won’t to loose all valuable data like play count, last play date, … you probably searched around hours to find a solution on how to change the location to your media library (e.g. you swapped hard drives, bought a new pc, …). Rescanning your media folder is the easiest way to rebuild your media library, but you’ll loose play count, play dates and maybe more meta data.

I’ve searched the winamp forum for solutions, but the only result was people asking the same questions without getting the right answers. Depending on your Winamp version you might have tried some none working plugins too. The logical solution would be exporting your winamp media library to an iTunes XML format (and the export process will work!), but you’ll run into fatal errors when trying to import it. It all boils down to getting access to the core data file of your winamp media library (main.dat) and updating an outdated location to a hard drive or directory that has been moved.

I have tested this approach with the latest Winamp version 5.61. Try at your own risk and keep a backup in a safe place in case you run into problems.

For starters you’ve made a backup of your original user’s winamp appdata (c:Users<USERNAME>AppDataRoamingWinamp*).

You need a HEX editor (e.g. XVI32) to rewrite the main.dat file, the core data file of your winamp media library which is typically located here: c:Users<USERNAME>AppDataRoamingWinampPluginsmlmain.dat. This file changes when you open/close winamp.

Be sure Winamp is closed and open main.dat in XVI32. Let’s assume your music is located at F:My Music and you want to change the location to D:My Music.

On the left hand you will see the HEX codes, and on the right side you’ll find a more human friendly view. In this view the file location F:My Music is represented by 46 00 3A 00 5C 00 4D 00 79 and so on. Notice that every character is followed by a NUL character (00). CTRL +R will show a dialog where you can easily convert F:My Music (46 00 3A 00 5C 00 4D 00 79 …) into D:My Music (44 00 3A 00 5C 00 4D 00 79 …) in HEX format. It’s good practice to see if the total amount of replacements resemble the total amount of music files inside your (old) winamp media library. If not, you have done something wrong, or some files got missing. You can rescan your media folder with winamp to remove broken links.

Good luck!

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