anonymous_namespace{ImportMP3_MPG123.cpp} Namespace Reference

Classes
class	MP3ImportFileHandle
class	MP3ImportPlugin

Functions
wxString	GetId3v2Genre (Tags &tags, const char *genre)
wxSeekMode	GetWXSeekMode (int whence)

Variables
const auto	exts = { wxT("mp3"), wxT("mp2"), wxT("mpa") }
static Importer::RegisteredImportPlugin	registered

Function Documentation

GetId3v2Genre()

wxString anonymous_namespace{ImportMP3_MPG123.cpp}::GetId3v2Genre	(	Tags &	tags,
		const char *	genre
	)

Definition at line 50 of file ImportMP3_MPG123.cpp.

{
   if (genre == nullptr)
      return {};
 
   // It was observed, however, that Genre can use a different format
   if (genre[0] != '(')
      // We consider the string to be a genre name
      return audacity::ToWXString(genre);
 
   auto it = genre;
   auto end = it + std::strlen(it);
 
   while (*it == '(')
   {
      int tagValue;
      auto result = FromChars(++it, end, tagValue);
 
      // Parsing failed, consider it to be the genre
      if (result.ec != std::errc {})
         break;
 
      const auto parsedGenre = tags.GetGenre(tagValue);
 
      if (!parsedGenre.empty())
         return parsedGenre;
 
      it = result.ptr;
 
      // Nothing left to parse
      if (it == end)
         break;
 
      // Unexpected symbol in the tag
      if (*it != ')')
         break;
 
      ++it;
   }
 
   if (it != end)
      return audacity::ToWXString(it);
 
   return audacity::ToWXString(genre);
}

References details::end(), FromChars(), Tags::GetGenre(), and audacity::ToWXString().

Referenced by anonymous_namespace{ImportMP3_MPG123.cpp}::MP3ImportFileHandle::ReadTags().

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GetWXSeekMode()

wxSeekMode anonymous_namespace{ImportMP3_MPG123.cpp}::GetWXSeekMode

(

int

whence

)

Definition at line 507 of file ImportMP3_MPG123.cpp.

{
   switch (whence)
   {
   case SEEK_SET:
      return wxFromStart;
   case SEEK_CUR:
      return wxFromCurrent;
   case SEEK_END:
      return wxFromEnd;
   default:
      // We have covered all the lseek whence modes defined by POSIX
      // so this branch should not be reachable
      assert(false);
      return wxFromStart;
   }
}

Referenced by anonymous_namespace{ImportMP3_MPG123.cpp}::MP3ImportFileHandle::SeekCallback().

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Variable Documentation

exts

const auto anonymous_namespace{ImportMP3_MPG123.cpp}::exts = { wxT("mp3"), wxT("mp2"), wxT("mpa") }

Definition at line 40 of file ImportMP3_MPG123.cpp.

registered

Importer::RegisteredImportPlugin anonymous_namespace{ImportMP3_MPG123.cpp}::registered

static

Initial value:

{
   "MP3",
   std::make_unique<MP3ImportPlugin>()
}

Definition at line 176 of file ImportMP3_MPG123.cpp.