- Fixed: FString::StripRight() stripped the final character of the string if

there were no designated characters to strip at the end of it.
- Added support for Shoutcast/Icecast playlists.
- Added an error message when a playlist could not be opened.
- Added support for PLS format playlists, in addition to M3U.
- Changed FPlayList to use an array of FStrings.
- Fixed: Playlists required every song to be specified by an absolute path.


SVN r951 (trunk)

docs/rh-log.txt

@@ -1,4 +1,11 @@
 April 29, 2008
+- Fixed: FString::StripRight() stripped the final character of the string if
+  there were no designated characters to strip at the end of it.
+- Added support for Shoutcast/Icecast playlists.
+- Added an error message when a playlist could not be opened.
+- Added support for PLS format playlists, in addition to M3U.
+- Changed FPlayList to use an array of FStrings.
+- Fixed: Playlists required every song to be specified by an absolute path.
 - Fixed a copy-and-paste error in win32/i_main.cpp for 64-bit mode.
 - Tweaked OPL centering a little.
 

src/s_playlist.cpp

@@ -33,127 +33,143 @@
 */
 
 #include <stdlib.h>
+#include <errno.h>
 
 #include "cmdlib.h"
 #include "s_playlist.h"
 #include "templates.h"
+#include "v_text.h"
 
 FPlayList::FPlayList (const char *path)
 {
-	Songs = NULL;
-	SongList = NULL;
 	ChangeList (path);
 }
 
 FPlayList::~FPlayList ()
 {
-	if (Songs)		delete[] Songs;
-	if (SongList)	delete[] SongList;
 }
 
 bool FPlayList::ChangeList (const char *path)
 {
-	char linebuff[256];
+	FString playlistdir;
-	size_t songlengths;
+	FString song;
-	int songcount;
 	FILE *file;
+	bool first;
+	bool pls;
+	int i;
 
-	if (Songs)
+	Songs.Clear();
-	{
-		delete[] Songs;
-		Songs = NULL;
-	}
-	if (SongList)
-	{
-		delete[] SongList;
-		SongList = NULL;
-	}
 	Position = 0;
-	NumSongs = 0;
 
-	if ( (file = fopen (path, "r")) == NULL)
+	if ( (file = fopen (path, "rb")) == NULL)
-		return false;
-
-	songlengths = 0;
-	songcount = 0;
-
-	while (NextLine (file, linebuff, sizeof(linebuff)))
 	{
-		songcount++;
+		Printf ("Could not open "TEXTCOLOR_BOLD"%s"TEXTCOLOR_NORMAL": %s\n", path, strerror(errno));
-		songlengths += strlen (linebuff) + 1;
+		return false;
 	}
 
-	rewind (file);
+	first = true;
-
+	pls = false;
-	if (songcount > 0)
+	playlistdir = ExtractFilePath(path);
+	while ((song = NextLine(file)).IsNotEmpty())
 	{
-		Songs = new char *[songcount];
+		if (first)
-		SongList = new char[songlengths];
-		NumSongs = songcount;
-		songlengths = 0;
-
-		for (songcount = 0; songcount < NumSongs &&
-			NextLine (file, linebuff, sizeof(linebuff)); songcount++)
 		{
-			size_t len = strlen (linebuff) + 1;
+			first = false;
-
+			// Check for ID tags.
-			memcpy (SongList + songlengths, linebuff, len);
+			if (song.Compare("[playlist]") == 0)
-			Songs[songcount] = SongList + songlengths;
+			{
-			songlengths += len;
+				pls = true;
+				continue;
+			}
 		}
 
-		NumSongs = songcount;
+		// For a .PLS file, skip anything that doesn't start with File[0-9]+=
-	}
+		if (pls)
+		{
+			if (strncmp(song, "File", 4) != 0)
+			{
+				continue;
+			}
+			for (i = 4; song[i] >= '0' && song[i] <= '9'; ++i)
+			{
+			}
+			if (song[i] != '=')
+			{
+				continue;
+			}
+			song = song.Mid(i + 1);
+		}
 
+		// Check for relative paths.
+		long slashpos = song.IndexOf('/');
+
+		if (slashpos == 0)
+		{
+			// First character is a slash, so it's absolute.
+		}
+#ifdef _WIN32
+		else if (slashpos == 2 && song[1] == ':')
+		{
+			// Name is something like X:/, so it's absolute.
+		}
+#endif
+		else if (song.IndexOf("://") == slashpos - 1)
+		{
+			// Name is a URL, so it's absolute.
+		}
+		else
+		{
+			// Path is relative; append it to the playlist directory.
+			song = playlistdir + song;
+		}
+		Songs.Push(song);
+	}
 	fclose (file);
 
-	return NumSongs > 0;
+	return Songs.Size() != 0;
 }
 
-bool FPlayList::NextLine (FILE *file, char *buffer, int n)
+FString FPlayList::NextLine (FILE *file)
 {
+	char buffer[512];
 	char *skipper;
 
 	do
 	{
-		if (NULL == fgets (buffer, n, file))
+		if (NULL == fgets (buffer, countof(buffer), file))
-			return false;
+			return "";
 
 		for (skipper = buffer; *skipper != 0 && *skipper <= ' '; skipper++)
 			;
 	} while (*skipper == '#' || *skipper == 0);
 
-	if (skipper > buffer)
+	FString str(skipper);
-		memmove (buffer, skipper, strlen (skipper)+1);
+	str.StripRight("\r\n");
-
+	FixPathSeperator(str);
-	if (buffer[strlen (buffer)-1] == '\n')
+	return str;
-		buffer[strlen (buffer)-1] = 0;
-
-	FixPathSeperator (buffer);
-
-	return true;
 }
 
 // Shuffles the playlist and resets the position to the start
 void FPlayList::Shuffle ()
 {
+	unsigned int numsongs = Songs.Size();
 	int i;
 
-	for (i = 0; i < NumSongs; ++i)
+	for (i = 0; i < numsongs; ++i)
 	{
-		swap (Songs[i], Songs[(rand() % (NumSongs - i)) + i]);
+		swap (Songs[i], Songs[(rand() % (numsongs - i)) + i]);
 	}
 	Position = 0;
 }
 
 int FPlayList::GetNumSongs () const
 {
-	return NumSongs;
+	return (int)Songs.Size();
 }
 
 int FPlayList::SetPosition (int position)
 {
-	if ((unsigned)position >= (unsigned)NumSongs)
+	if ((unsigned)position >= Songs.Size())
 	{
 		Position = 0;
 	}
@@ -172,7 +188,7 @@ int FPlayList::GetPosition () const
 
 int FPlayList::Advance ()
 {
-	if (++Position >= NumSongs)
+	if (++Position >= Songs.Size())
 	{
 		Position = 0;
 	}
@@ -184,7 +200,7 @@ int FPlayList::Backup ()
 {
 	if (--Position < 0)
 	{
-		Position = NumSongs - 1;
+		Position = Songs.Size() - 1;
 	}
 	DPrintf ("Playlist backed up to song %d\n", Position);
 	return Position;
@@ -192,7 +208,7 @@ int FPlayList::Backup ()
 
 const char *FPlayList::GetSong (int position) const
 {
-	if ((unsigned)position >= (unsigned)NumSongs)
+	if ((unsigned)position >= Songs.Size())
 		return NULL;
 
 	return Songs[position];

src/s_playlist.h

@@ -51,12 +51,10 @@ public:
 	const char *GetSong (int position) const;
 
 private:
-	static bool NextLine (FILE *file, char *buffer, int n);
+	static FString NextLine (FILE *file);
 
-	int Position;
+	unsigned int Position;
-	int NumSongs;
+	TArray<FString> Songs;
-	char **Songs;		// Pointers into SongList
-	char *SongList;
 };
 
 #endif //__S_PLAYLIST_H__

src/s_sound.cpp

@@ -1181,10 +1181,12 @@ void S_UpdateSounds (void *listener_p)
 	if (GSnd == NULL)
 		return;
 
-	// [RH] Update playlist
+	// [RH] Update music and/or playlist. I_QrySongPlaying() must be called
-	if (PlayList &&
+	// to attempt to reconnect to broken net streams and to advance the
-		mus_playing.handle &&
+	// playlist when the current song finishes.
-		!I_QrySongPlaying(mus_playing.handle))
+	if (mus_playing.handle != NULL &&
+		!I_QrySongPlaying(mus_playing.handle) &&
+		PlayList)
 	{
 		PlayList->Advance();
 		S_ActivatePlayList(false);
@@ -1335,42 +1337,64 @@ bool S_ChangeMusic (const char *musicname, int order, bool looping, bool force)
 		int lumpnum = -1;
 		int offset, length;
 		int device = MDEV_DEFAULT;
-	
+		void *handle = NULL;
 
 		int *devp = MidiDevices.CheckKey(FName(musicname));
 		if (devp != NULL) device = *devp;
 
+		// Strip off any leading file:// component.
+		if (strncmp(musicname, "file://", 7) == 0)
+		{
+			musicname += 7;
+		}
+
 		if (!FileExists (musicname))
 		{
 			if ((lumpnum = Wads.CheckNumForFullName (musicname, true, ns_music)) == -1)
 			{
-				Printf ("Music \"%s\" not found\n", musicname);
+				if (strstr(musicname, "://") > musicname)
-				return false;
-			}
-			if (!Wads.IsUncompressedFile(lumpnum))
-			{
-				// We must cache the music data and use it from memory.
-
-				// shut down old music before reallocating and overwriting the cache!
-				S_StopMusic (true);
-
-				offset = -1;							// this tells the low level code that the music 
-														// is being used from memory
-				length = Wads.LumpLength (lumpnum);
-				if (length == 0)
 				{
+					// Looks like a URL; try it as such.
+					handle = I_RegisterURLSong(musicname);
+					if (handle == NULL)
+					{
+						Printf ("Could not open \"%s\"\n", musicname);
+						return false;
+					}
+				}
+				else
+				{
+					Printf ("Music \"%s\" not found\n", musicname);
 					return false;
 				}
-				musiccache.Resize(length);
-				Wads.ReadLump(lumpnum, &musiccache[0]);
 			}
-			else
+			if (handle == NULL)
 			{
-				offset = Wads.GetLumpOffset (lumpnum);
+				if (!Wads.IsUncompressedFile(lumpnum))
-				length = Wads.LumpLength (lumpnum);
-				if (length == 0)
 				{
-					return false;
+					// We must cache the music data and use it from memory.
+
+					// shut down old music before reallocating and overwriting the cache!
+					S_StopMusic (true);
+
+					offset = -1;							// this tells the low level code that the music 
+															// is being used from memory
+					length = Wads.LumpLength (lumpnum);
+					if (length == 0)
+					{
+						return false;
+					}
+					musiccache.Resize(length);
+					Wads.ReadLump(lumpnum, &musiccache[0]);
+				}
+				else
+				{
+					offset = Wads.GetLumpOffset (lumpnum);
+					length = Wads.LumpLength (lumpnum);
+					if (length == 0)
+					{
+						return false;
+					}
 				}
 			}
 		}
@@ -1394,7 +1418,11 @@ bool S_ChangeMusic (const char *musicname, int order, bool looping, bool force)
 		}
 
 		// load & register it
-		if (offset != -1)
+		if (handle != NULL)
+		{
+			mus_playing.handle = handle;
+		}
+		else if (offset != -1)
 		{
 			mus_playing.handle = I_RegisterSong (lumpnum != -1 ?
 				Wads.GetWadFullName (Wads.GetLumpFile (lumpnum)) :

src/sound/fmodsound.cpp

@@ -208,7 +208,8 @@ static const char *OpenStateNames[] =
 	"Error",
 	"Connecting",
 	"Buffering",
-	"Seeking"
+	"Seeking",
+	"Streaming"
 };
 
 // CODE --------------------------------------------------------------------
@@ -266,9 +267,9 @@ static const char *Enum_NameForNum(const FEnumList *list, int num)
 class FMODStreamCapsule : public SoundStream
 {
 public:
-	FMODStreamCapsule(FMOD::Sound *stream, FMODSoundRenderer *owner)
+	FMODStreamCapsule(FMOD::Sound *stream, FMODSoundRenderer *owner, const char *url)
 		: Owner(owner), Stream(NULL), Channel(NULL),
-		  UserData(NULL), Callback(NULL), Ended(false)
+		  UserData(NULL), Callback(NULL), Ended(false), URL(url)
 	{
 		SetStream(stream);
 	}
@@ -280,6 +281,10 @@ public:
 
 	~FMODStreamCapsule()
 	{
+		if (Channel != NULL)
+		{
+			Channel->stop();
+		}
 		if (Stream != NULL)
 		{
 			Stream->release();
@@ -303,7 +308,11 @@ public:
 	{
 		FMOD_RESULT result;
 
-		Stream->setMode(looping ? FMOD_LOOP_NORMAL : FMOD_LOOP_OFF);
+		if (URL.IsNotEmpty())
+		{ // Net streams cannot be looped, because they cannot be seeked.
+			looping = false;
+		}
+		Stream->setMode((looping ? FMOD_LOOP_NORMAL : FMOD_LOOP_OFF) | FMOD_SOFTWARE | FMOD_2D);
 		result = Owner->Sys->playSound(FMOD_CHANNEL_FREE, Stream, true, &Channel);
 		if (result != FMOD_OK)
 		{
@@ -320,6 +329,11 @@ public:
 			Channel->setReverbProperties(&reverb);
 		}
 		Channel->setPaused(false);
+		Ended = false;
+		JustStarted = true;
+		Starved = false;
+		Loop = looping;
+		Volume = volume;
 		return true;
 	}
 
@@ -352,12 +366,82 @@ public:
 		return 0;
 	}
 
+	bool IsEnded()
+	{
+		bool is;
+		FMOD_OPENSTATE openstate = FMOD_OPENSTATE_MAX;
+		bool starving;
+
+		if (Stream == NULL)
+		{
+			return true;
+		}
+		if (FMOD_OK != Stream->getOpenState(&openstate, NULL, &starving))
+		{
+			openstate = FMOD_OPENSTATE_ERROR;
+		}
+		if (openstate == FMOD_OPENSTATE_ERROR)
+		{
+			if (Channel != NULL)
+			{
+				Channel->stop();
+				Channel = NULL;
+			}
+			return true;
+		}
+		if (Channel != NULL && (FMOD_OK != Channel->isPlaying(&is) || is == false))
+		{
+			return true;
+		}
+		if (Ended)
+		{
+			Channel->stop();
+			Channel = NULL;
+			return true;
+		}
+		if (URL.IsNotEmpty() && !JustStarted && openstate == FMOD_OPENSTATE_READY)
+		{
+			// Reconnect the stream, since it seems to have stalled.
+			// The only way to do this appears to be to completely recreate it.
+			FMOD_RESULT result;
+
+			Channel->stop();
+			Stream->release();
+			Channel = NULL;
+			Stream = NULL;
+			Owner->Sys->setStreamBufferSize(64*1024, FMOD_TIMEUNIT_RAWBYTES);
+			// Open the stream asynchronously, so we don't hang the game while trying to reconnect.
+			// (It would be nice to do the initial open asynchronously as well, but I'd need to rethink
+			// the music system design to pull that off.)
+			result = Owner->Sys->createSound(URL, (Loop ? FMOD_LOOP_NORMAL : FMOD_LOOP_OFF) | FMOD_SOFTWARE | FMOD_2D |
+				FMOD_CREATESTREAM | FMOD_NONBLOCKING, NULL, &Stream);
+			JustStarted = true;
+			Owner->Sys->setStreamBufferSize(16*1024, FMOD_TIMEUNIT_RAWBYTES);
+			return result != FMOD_OK;
+		}
+		if (JustStarted && openstate == FMOD_OPENSTATE_STREAMING)
+		{
+			JustStarted = false;
+		}
+		if (JustStarted && Channel == NULL && openstate == FMOD_OPENSTATE_READY)
+		{
+			return !Play(Loop, Volume);
+		}
+		if (starving != Starved)
+		{ // Mute the sound if it's starving.
+			Channel->setVolume(starving ? 0 : Volume);
+			Starved = starving;
+		}
+		return false;
+	}
+
 	void SetVolume(float volume)
 	{
-		if (Channel != NULL)
+		if (Channel != NULL && !Starved)
 		{
 			Channel->setVolume(volume);
 		}
+		Volume = volume;
 	}
 
 	// Sets the current order number for a MOD-type song, or the position in ms
@@ -387,12 +471,17 @@ public:
 
 		if (FMOD_OK == Stream->getOpenState(&openstate, &percentbuffered, &starving))
 		{
-			stats = (openstate <= FMOD_OPENSTATE_SEEKING ? OpenStateNames[openstate] : "Unknown state");
+			stats = (openstate <= FMOD_OPENSTATE_STREAMING ? OpenStateNames[openstate] : "Unknown state");
 			stats.AppendFormat(",%3d%% buffered, %s", percentbuffered, starving ? "Starving" : "Well-fed");
 		}
 		if (Channel != NULL && FMOD_OK == Channel->getPosition(&position, FMOD_TIMEUNIT_MS))
 		{
-			stats.AppendFormat(", %d ms", position);
+			stats.AppendFormat(", %d", position);
+			if (FMOD_OK == Stream->getLength(&position, FMOD_TIMEUNIT_MS))
+			{
+				stats.AppendFormat("/%d", position);
+			}
+			stats += " ms";
 		}
 		return stats;
 	}
@@ -428,7 +517,12 @@ private:
 	FMOD::Channel *Channel;
 	void *UserData;
 	SoundStreamCallback Callback;
+	FString URL;
 	bool Ended;
+	bool JustStarted;
+	bool Starved;
+	bool Loop;
+	float Volume;
 };
 
 //==========================================================================
@@ -1086,6 +1180,7 @@ SoundStream *FMODSoundRenderer::OpenStream(const char *filename_or_data, int fla
 	FMOD_CREATESOUNDEXINFO exinfo = { sizeof(exinfo), };
 	FMOD::Sound *stream;
 	FMOD_RESULT result;
+	bool url;
 
 	mode = FMOD_SOFTWARE | FMOD_2D | FMOD_CREATESTREAM;
 	if (flags & SoundStream::Loop)
@@ -1104,7 +1199,19 @@ SoundStream *FMODSoundRenderer::OpenStream(const char *filename_or_data, int fla
 		exinfo.dlsname = snd_midipatchset;
 	}
 
+	url = (offset == 0 && length == 0 && strstr(filename_or_data, "://") > filename_or_data);
+	if (url)
+	{
+		// Use a larger buffer for URLs so that it's less likely to be effected
+		// by hiccups in the data rate from the remote server.
+		Sys->setStreamBufferSize(64*1024, FMOD_TIMEUNIT_RAWBYTES);
+	}
 	result = Sys->createSound(filename_or_data, mode, &exinfo, &stream);
+	if (url)
+	{
+		// Restore standard buffer size.
+		Sys->setStreamBufferSize(16*1024, FMOD_TIMEUNIT_RAWBYTES);
+	}
 	if (result == FMOD_ERR_FORMAT && exinfo.dlsname != NULL)
 	{
 		// FMOD_ERR_FORMAT could refer to either the main sound file or
@@ -1119,7 +1226,7 @@ SoundStream *FMODSoundRenderer::OpenStream(const char *filename_or_data, int fla
 	}
 	if (result == FMOD_OK)
 	{
-		return new FMODStreamCapsule(stream, this);
+		return new FMODStreamCapsule(stream, this, url ? filename_or_data : NULL);
 	}
 	return NULL;
 }

src/sound/i_music.cpp

@@ -259,6 +259,23 @@ void I_UnRegisterSong (void *handle)
 	}
 }
 
+void *I_RegisterURLSong (const char *url)
+{
+	StreamSong *song;
+
+	if (GSnd == NULL)
+	{
+		return NULL;
+	}
+	song = new StreamSong(url, 0, 0);
+	if (song->IsValid())
+	{
+		return song;
+	}
+	delete song;
+	return NULL;
+}
+
 void *I_RegisterSong (const char *filename, char *musiccache, int offset, int len, int device)
 {
 	FILE *file;

src/sound/i_music.h

@@ -56,6 +56,7 @@ void I_ResumeSong (void *handle);
 // Registers a song handle to song data.
 void *I_RegisterSong (const char *file, char * musiccache, int offset, int length, int device);
 void *I_RegisterCDSong (int track, int cdid = 0);
+void *I_RegisterURLSong (const char *url);
 
 // Called by anything that wishes to start music.
 //	Plays a song, and when the song is done,

src/sound/i_musicinterns.h

@@ -452,10 +452,9 @@ public:
 	FString GetStats();
 
 protected:
-	StreamSong () : m_Stream(NULL), m_LastPos(0) {}
+	StreamSong () : m_Stream(NULL) {}
 
 	SoundStream *m_Stream;
-	int m_LastPos;
 };
 
 // MIDI file played with Timidity and possibly streamed through FMOD --------

src/sound/i_sound.h

@@ -53,12 +53,13 @@ public:
 		Loop = 16
 	};
 
-	virtual bool Play (bool looping, float volume) = 0;
+	virtual bool Play(bool looping, float volume) = 0;
-	virtual void Stop () = 0;
+	virtual void Stop() = 0;
-	virtual void SetVolume (float volume) = 0;
+	virtual void SetVolume(float volume) = 0;
-	virtual bool SetPaused (bool paused) = 0;
+	virtual bool SetPaused(bool paused) = 0;
-	virtual unsigned int GetPosition () = 0;
+	virtual unsigned int GetPosition() = 0;
-	virtual bool SetPosition (int pos);
+	virtual bool IsEnded() = 0;
+	virtual bool SetPosition(int pos);
 	virtual FString GetStats();
 };
 

src/sound/music_stream.cpp

@@ -8,7 +8,6 @@ void StreamSong::Play (bool looping)
 	if (m_Stream->Play (m_Looping, 1))
 	{
 		m_Status = STATE_Playing;
-		m_LastPos = 0;
 	}
 }
 
@@ -65,18 +64,11 @@ bool StreamSong::IsPlaying ()
 {
 	if (m_Status != STATE_Stopped)
 	{
-		if (m_Looping)
+		if (m_Stream->IsEnded())
-			return true;
-
-		int pos = m_Stream->GetPosition ();
-
-		if (pos < m_LastPos)
 		{
-			Stop ();
+			Stop();
 			return false;
 		}
-
-		m_LastPos = pos;
 		return true;
 	}
 	return false;

src/zstring.cpp

@@ -385,7 +385,7 @@ FString FString::Mid (size_t pos, size_t numChars) const
 	{
 		return FString();
 	}
-	if (pos + numChars > len)
+	if (pos + numChars > len || pos + numChars < pos)
 	{
 		numChars = len - pos;
 	}
@@ -631,7 +631,7 @@ void FString::StripLeft (const char *charset)
 void FString::StripRight ()
 {
 	size_t max = Len(), i;
-	for (i = max - 1; i-- > 0; )
+	for (i = max; i-- > 0; )
 	{
 		if (!isspace(Chars[i]))
 			break;
@@ -658,7 +658,7 @@ void FString::StripRight (const FString &charset)
 void FString::StripRight (const char *charset)
 {
 	size_t max = Len(), i;
-	for (i = max - 1; i-- > 0; )
+	for (i = max; i-- > 0; )
 	{
 		if (!strchr (charset, Chars[i]))
 			break;

src/zstring.h

@@ -164,7 +164,7 @@ public:
 
 	FString Left (size_t numChars) const;
 	FString Right (size_t numChars) const;
-	FString Mid (size_t pos, size_t numChars) const;
+	FString Mid (size_t pos, size_t numChars = ~(size_t)0) const;
 
 	long IndexOf (const FString &substr, long startIndex=0) const;
 	long IndexOf (const char *substr, long startIndex=0) const;