DynamicLibraryHelpers.cpp

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  DynamicLibraryHelpers.cpp
 
  Dmitry Vedenko
 
**********************************************************************/
 
#include "DynamicLibraryHelpers.h"
 
#include <wx/dynlib.h>
 
#include "FFmpegTypes.h"
 
using GetVersionFn = unsigned (*)();
 
bool GetAVVersion(
   const wxDynamicLibrary& lib, const char* name, FFMPegVersion& version)
{
   GetVersionFn versionFn = reinterpret_cast<GetVersionFn>(lib.GetSymbol(name));
 
   if (nullptr == versionFn)
      return false;
 
   const unsigned fullVersion = versionFn();
 
   version.Major = (fullVersion >> 16) & 0xFF;
   version.Minor = (fullVersion >> 8) & 0xFF;
   version.Micro = fullVersion & 0xFF;
 
   return true;
}