Fix a bunch of Doxygen warnings, two more left!

Originally committed to SVN as r3347.

aegisub/src/audio_player_portaudio.cpp

@@ -48,7 +48,6 @@
 #include "utils.h"
 #include "charset_conv.h"
 
-/// @define PORTAUDIO_DEBUG Enable debugging?
 //#define PORTAUDIO_DEBUG
 
 
@@ -277,9 +276,9 @@ int64_t PortAudioPlayer::GetCurrentPosition()
 
 
 
-/// @brief @param Setting from config file.
+/// @brief Get list of available output devices
 /// @param favorite Favorite output device
-/// @return List of available output devices.
+/// @return List of available output devices with the 'favorite' being first in the list.
 wxArrayString PortAudioPlayer::GetOutputDevices(wxString favorite) {
 	wxArrayString list;
 	int devices = Pa_GetDeviceCount();

aegisub/src/ffmpegsource_common.cpp

@@ -143,7 +143,6 @@ std::map<int,wxString> FFmpegSourceProvider::GetTracksOfType(FFIndexer *Indexer,
 
 
 /// @brief Ask user for which track he wants to load 
-/// @param std::map<int 
 /// @param TrackList 
 /// @param Type      
 /// @return 

aegisub/src/subtitles_provider_csri.h

@@ -88,7 +88,7 @@ class CSRISubtitlesProviderFactory : public SubtitlesProviderFactory {
 public:
 
 	/// @brief DOCME
-	/// @param subType=_T(Ó) 
+	/// @param subType
 	///
 	SubtitlesProvider *CreateProvider(wxString subType=_T("")) { return new CSRISubtitlesProvider(subType); }
 	wxArrayString GetSubTypes();

aegisub/src/subtitles_provider_libass.h

@@ -85,7 +85,7 @@ class LibassSubtitlesProviderFactory : public SubtitlesProviderFactory {
 public:
 
 	/// @brief DOCME
-	/// @param subType=_T(Ó) 
+	/// @param subType
 	///
 	SubtitlesProvider *CreateProvider(wxString subType=_T("")) { return new LibassSubtitlesProvider(); }
 };