# LoadPlugin (Avisynth Compatibility)

avs.LoadPlugin(string path)

  Load an Avisynth 2.5 (32 bit only), 2.6 (32 and 64 bit) or Avisynth+ (32 and 64 bit) plugin. If successful, the loaded plugin’s functions will end up in the avs namespace. Note that in the case of Avisynth+ there’s no way to use the formats combined with alpha or higher bitdepth packed RGB. Coincidentally there are no plugins that use this in a meaningful way yet.

  The compatibility module can work with a large number of Avisynth’s plugins. However, the wrapping is not complete, so the following things will cause problems:

  > - The plugin expects YUY2 or RGB32 input. In this case provide input in either YUV422P8 or RGB24 format pass compatpack=True as an argument to the Avisynth function.

  > - The plugin tries to call env->invoke(). These calls are ignored when it is safe to do so, but otherwise they will most likely trigger a fatal error.

  > - Plugins trying to read global variables. There are no global variables.

  If there are function name collisions functions will have a number appended to them to make them distinct. For example if three functions are named func then they will be named func, func_2 and func_3. This means that Avisynth functions that have multiple overloads (rare) will give each overload a different name.

  Note that if you are really insane you can load Avisynth’s VirtualDub plugin loader and use VirtualDub plugins as well. Function overloads are very common when dealing with VirtualDub.

  Beware of Python’s escape character, this will fail:

      LoadPlugin(path='c:\plugins\filter.dll')

  Correct ways:

      LoadPlugin(path='c:/plugins/filter.dll')
      LoadPlugin(path=r'c:\plugins\filter.dll')
      LoadPlugin(path='c:\\plugins\\filter.dll')