FFmpegFunctions.cpp File Reference

#include "FFmpegFunctions.h"
#include <wx/string.h>
#include <wx/dynlib.h>
#include <wx/log.h>
#include <wx/utils.h>
#include <wx/buffer.h>
#include <wx/msw/registry.h>
#include <windows.h>
#include <psapi.h>
#include "Prefs.h"
#include "FileNames.h"
#include "impl/avutil/AVUtilFunctionsLoader.h"
#include "impl/avcodec/AVCodecFunctionsLoader.h"
#include "impl/avformat/AVFormatFunctionsLoader.h"
#include "impl/FFmpegAPIResolver.h"
#include "impl/FFmpegLog.h"

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Classes
struct	EnvSetter
struct	FFmpegFunctions::Private

Macros
#define	WIN32_LEAN_AND_MEAN

Functions
void *	GetSymbolFromProcess (const char *name)
std::vector< wxString >	BuildAVFormatPaths (int version)

Variables
StringSetting	AVFormatPath { L"/FFmpeg/FFmpegLibPath", L"" }

Macro Definition Documentation

WIN32_LEAN_AND_MEAN

#define WIN32_LEAN_AND_MEAN

Definition at line 22 of file FFmpegFunctions.cpp.

Function Documentation

BuildAVFormatPaths()

std::vector< wxString > BuildAVFormatPaths

(

int

version

)

Definition at line 126 of file FFmpegFunctions.cpp.

{
   return {
#if defined(__WXMSW__)
      wxString::Format("avformat-%d.dll", version),
#elif defined(__WXMAC__)
      wxString::Format("libavformat.%d.dylib", version),
      wxString::Format("ffmpeg.%d.64bit.dylib", version),
#elif defined(__OpenBSD__)
      wxString::Format("libavformat.so"),
#else
      wxString::Format("libavformat.so.%d", version),
#endif
};
}

Referenced by FFmpegFunctions::Load().

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GetSymbolFromProcess()

void * GetSymbolFromProcess

(

const char *

name

)

Definition at line 39 of file FFmpegFunctions.cpp.

{
#if defined(__WXMSW__)
   std::vector<HMODULE> handles(256);
 
   DWORD neededMemory;
 
   if (!EnumProcessModules(
          GetCurrentProcess(), handles.data(), sizeof(HMODULE) * handles.size(),
          &neededMemory))
   {
      return nullptr;
   }
 
   const int modulesCount = neededMemory / sizeof(HMODULE);
 
   if (modulesCount > handles.size())
   {
      handles.resize(modulesCount);
 
      if (!EnumProcessModules(
             GetCurrentProcess(), handles.data(),
             sizeof(HMODULE) * handles.size(), &neededMemory))
      {
         return nullptr;
      }
   }
 
   for (HMODULE handle : handles)
   {
      void* addr = GetProcAddress(handle, name);
 
      if (addr != nullptr)
         return addr;
   }
 
   return nullptr;
#else
   return dlsym(RTLD_DEFAULT, name);
#endif
}

References name.

Referenced by FFmpegFunctions::Private::LibraryWithSymbol().

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Variable Documentation

AVFormatPath

StringSetting AVFormatPath { L"/FFmpeg/FFmpegLibPath", L"" }

Definition at line 298 of file FFmpegFunctions.cpp.

Referenced by FindFFmpegLibs(), and FFmpegFunctions::GetSearchPaths().