Add:speech/espeak:Added new speech plugin for tts output by espeak. This first version only supports win32.

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@2684 ffa7fe5e-494d-0410-b361-a75ebd5db220

3 files changed, 484 insertions, 0 deletions

diff --git a/navit/speech/Makefile.am b/navit/speech/Makefile.am
index 1d40c8e1..ddab19c7 100644
--- a/navit/speech/Makefile.am
+++ b/navit/speech/Makefile.am
@@ -5,6 +5,9 @@ endif
 if SPEECH_CMDLINE
   SUBDIRS += cmdline
 endif
+if SPEECH_ESPEAK
+  SUBDIRS += espeak
+endif
 if SPEECH_SPEECH_DISPATCHER
   SUBDIRS += speech_dispatcher
 endif
diff --git a/navit/speech/espeak/Makefile.am b/navit/speech/espeak/Makefile.am
new file mode 100644
index 00000000..aef0ec81
--- /dev/null
+++ b/navit/speech/espeak/Makefile.am
@@ -0,0 +1,6 @@
+include $(top_srcdir)/Makefile.inc
+AM_CPPFLAGS = @NAVIT_CFLAGS@ -I$(top_srcdir)/navit -DMODULE=speech_espeak
+modulespeech_LTLIBRARIES = libspeech_espeak.la
+libspeech_espeak_la_SOURCES = speak.c 
+libspeech_espeak_la_LDFLAGS = -module -avoid-version @MODULE_LDFLAGS@
+
diff --git a/navit/speech/espeak/speak.c b/navit/speech/espeak/speak.c
new file mode 100644
index 00000000..6a8d10cb
--- /dev/null
+++ b/navit/speech/espeak/speak.c
@@ -0,0 +1,475 @@
+/**
+ * Navit, a modular navigation system.
+ * Copyright (C) 2005-2008 Navit Team
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#define _WIN32_WINNT 0x0500
+
+#include "config.h"
+
+#ifdef HAVE_API_WIN32_BASE
+#include <windows.h>
+#include <mmsystem.h>
+#include <winreg.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <sys/stat.h>
+#include <glib.h>
+#include "item.h"
+#include "plugin.h"
+#include "speech.h"
+#include "debug.h"
+
+#include "support/espeak/speech.h"
+#include "support/espeak/speak_lib.h"
+#include "support/espeak/phoneme.h"
+#include "support/espeak/synthesize.h"
+#include "support/espeak/voice.h"
+#include "support/espeak/translate.h"
+
+
+#define SAMPLES_PER_BUFFER 1024
+#define BUFFERS 8
+
+
+// ----- some stuff needed by espeak ----------------------------------
+char path_home[N_PATH_HOME];    // this is the espeak-data directory
+int (* uri_callback)(int, const char *, const char *) = NULL;
+int (* phoneme_callback)(const char *) = NULL;
+FILE *f_wave = NULL;
+
+int GetFileLength(const char *filename)
+{
+	struct stat statbuf;
+
+	if(stat(filename,&statbuf) != 0)
+		return(0);
+
+	if((statbuf.st_mode & S_IFMT) == S_IFDIR)
+		return(-2);  // a directory
+
+	return(statbuf.st_size);
+}
+
+void MarkerEvent(int type, unsigned int char_position, int value, unsigned char *out_ptr)
+{
+}
+
+char *Alloc(int size)
+{
+	return g_malloc(size);
+}
+
+void Free(void *ptr)
+{
+	g_free(ptr);
+}
+
+// --------------------------------------------------------------------
+
+
+enum speech_messages
+{
+	msg_say = WM_USER,
+	msg_exit
+};
+
+enum speech_state
+{
+	state_available,
+	state_speaking_phase_1,
+	state_speaking_phase_2,
+	state_speaking_phase_3
+
+};
+
+struct speech_priv {
+	GList *free_buffers;
+	HWAVEOUT h_wave_out;
+	enum speech_state state;
+	GList *phrases;
+	HWND h_queue;
+	HANDLE h_message_thread;
+};
+
+
+static void waveout_close(struct speech_priv* sp_priv)
+{
+	waveOutClose(sp_priv->h_wave_out);
+}
+
+static BOOL waveout_open(struct speech_priv* sp_priv)
+{
+	MMRESULT result = 0;
+
+	HWAVEOUT hwo;
+	static WAVEFORMATEX wmTemp;
+	wmTemp.wFormatTag = WAVE_FORMAT_PCM;
+	wmTemp.nChannels = 1;
+	wmTemp.nSamplesPerSec = 22050;
+	wmTemp.wBitsPerSample = 16;
+	wmTemp.nBlockAlign = wmTemp.nChannels * wmTemp.wBitsPerSample / 8;
+	wmTemp.nAvgBytesPerSec = wmTemp.nSamplesPerSec * wmTemp.nBlockAlign;
+	wmTemp.cbSize = 0;
+	result = waveOutOpen(&hwo, (UINT) WAVE_MAPPER, &wmTemp, (DWORD)sp_priv->h_queue, (DWORD)sp_priv, CALLBACK_WINDOW);
+	sp_priv->h_wave_out = hwo;
+
+	return (result==MMSYSERR_NOERROR);
+}
+
+static int wave_out(struct speech_priv* sp_priv)
+{
+	unsigned char wav_outbuf[SAMPLES_PER_BUFFER * 2];
+	int isDone;
+
+	WAVEHDR *WaveHeader = g_list_first(sp_priv->free_buffers)->data;
+	sp_priv->free_buffers = g_list_remove(sp_priv->free_buffers, WaveHeader);
+
+	out_ptr = out_start = wav_outbuf;
+	out_end = wav_outbuf + sizeof(wav_outbuf);
+
+	isDone = WavegenFill(0);
+
+	if ( out_ptr < out_end )
+	{
+		memset ( out_ptr, 0, out_end - out_ptr );
+	}
+	memcpy(WaveHeader->lpData, wav_outbuf, WaveHeader->dwBufferLength);
+	waveOutWrite(sp_priv->h_wave_out, WaveHeader, sizeof(WAVEHDR));
+
+	return isDone;
+}
+
+static BOOL initialise(void)
+{
+	int param;
+	int result;
+
+	WavegenInit(22050,0);   // 22050
+	if((result = LoadPhData()) != 1)
+	{
+		if(result == -1)
+		{
+			dbg(0, "Failed to load espeak-data\n");
+			return FALSE;
+		}
+		else
+			dbg(0, "Wrong version of espeak-data 0x%x (expects 0x%x) at %s\n",result,version_phdata,path_home);
+	}
+	LoadConfig();
+	SetVoiceStack(NULL);
+	SynthesizeInit();
+
+	for(param=0; param<N_SPEECH_PARAM; param++)
+		param_stack[0].parameter[param] = param_defaults[param];
+
+	return TRUE;
+}
+
+static void fill_buffer(struct speech_priv *this)
+{
+	while ( this->free_buffers && this->state != state_speaking_phase_3 )
+	{
+		if(Generate(phoneme_list,&n_phoneme_list,1)==0)
+		{
+			if (!SpeakNextClause(NULL,NULL,1))
+			{
+				this->state = state_speaking_phase_2;
+			}
+		}
+
+		if ( wave_out(this)!= 0 && this->state == state_speaking_phase_2)
+		{
+			this->state = state_speaking_phase_3;
+		}
+	}
+}
+
+static void start_speaking(struct speech_priv* sp_priv)
+{
+	char *phrase = g_list_first(sp_priv->phrases)->data;
+
+	sp_priv->state = state_speaking_phase_1;
+
+	SpeakNextClause(NULL, phrase,0);
+	wave_out(sp_priv);
+	fill_buffer(sp_priv);
+}
+
+static LRESULT CALLBACK speech_message_handler( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
+{
+	dbg(1, "message_handler called\n");
+
+	switch (uMsg)
+	{
+		case msg_say:
+		{
+			struct speech_priv* sp_priv = (struct speech_priv*)wParam;
+			sp_priv->phrases = g_list_append(sp_priv->phrases, (char*)lParam);
+
+			if ( sp_priv->state == state_available )
+			{
+				start_speaking(sp_priv);
+			}
+
+		}
+		break;
+		case MM_WOM_DONE:
+		{
+			dbg(2, "Wave buffer done\n");
+			WAVEHDR *WaveHeader = (WAVEHDR *)lParam;
+
+			struct speech_priv* sp_priv = (struct speech_priv*)WaveHeader->dwUser;
+			sp_priv->free_buffers = g_list_append(sp_priv->free_buffers, WaveHeader);
+
+			if ( sp_priv->state != state_speaking_phase_3)
+			{
+				fill_buffer(sp_priv);
+			}
+			else if ( g_list_length(sp_priv->free_buffers) == BUFFERS && sp_priv->state == state_speaking_phase_3 )
+			{
+				// remove the spoken phrase from the list
+				char *phrase = g_list_first(sp_priv->phrases)->data;
+				g_free( phrase );
+				sp_priv->phrases = g_list_remove(sp_priv->phrases, phrase);
+
+				if ( sp_priv->phrases )
+				{
+					start_speaking(sp_priv);
+				}
+				else
+				{
+					sp_priv->state = state_available;
+				}
+			}
+		}
+		break;
+		case msg_exit:
+			ExitThread(0);
+			break;
+
+		default:
+			break;
+
+	}
+
+	return TRUE;
+}
+
+static void speech_message_dispatcher( struct speech_priv * sp_priv)
+{
+	BOOL bRet;
+	MSG msg;
+
+    while( (bRet = GetMessage( &msg, NULL, 0, 0 )) != 0)
+    {
+        if (bRet == -1)
+        {
+            dbg(0, "Error getting message from queue\n");
+            break;
+        }
+        else
+        {
+            TranslateMessage(&msg);
+            DispatchMessage(&msg);
+        }
+    }
+}
+
+static void create_buffers(struct speech_priv *sp_priv)
+{
+	int buffer_counter;
+	for (buffer_counter = 0; buffer_counter < BUFFERS; buffer_counter++)
+	{
+		WAVEHDR *WaveHeader = g_new0(WAVEHDR, 1);
+
+		WaveHeader->dwBufferLength = SAMPLES_PER_BUFFER * 2;
+		WaveHeader->lpData = (char *)VirtualAlloc(0, WaveHeader->dwBufferLength, MEM_COMMIT, PAGE_READWRITE);
+		WaveHeader->dwUser = (DWORD)sp_priv;
+		waveOutPrepareHeader(sp_priv->h_wave_out, WaveHeader, sizeof(WAVEHDR));
+
+		sp_priv->free_buffers = g_list_append( sp_priv->free_buffers,  WaveHeader );
+	}
+}
+
+static DWORD startThread( LPVOID sp_priv)
+{
+	struct speech_priv *this = (struct speech_priv *) sp_priv;
+	// Create message queue
+	TCHAR *g_szClassName  = TEXT("SpeechQueue");
+    WNDCLASS wc;
+    HWND hwnd;
+
+
+	memset(&wc, 0 , sizeof(WNDCLASS));
+    wc.lpfnWndProc	= speech_message_handler;
+    wc.hInstance	= GetModuleHandle(NULL);
+    wc.lpszClassName = g_szClassName;
+
+    if (!RegisterClass(&wc))
+    {
+        dbg(0, "Window registration for message queue failed\n");
+        return 1;
+    }
+
+    HWND hWndParent = NULL;
+#ifndef HAVE_API_WIN32_CE
+    hWndParent = HWND_MESSAGE;
+#endif
+
+    // create a message only window
+    hwnd = CreateWindow(
+				g_szClassName,
+				TEXT("Navit"),
+				0,
+				0,
+				0,
+				0,
+				0,
+				hWndParent,
+				NULL,
+				GetModuleHandle(NULL),
+				NULL);
+
+    if (hwnd == NULL)
+    {
+        dbg(0, "Window creation failed: %d\n",  GetLastError());
+        return 1;
+    }
+
+    this->h_queue = hwnd;
+	this->phrases = NULL;
+	this->state = state_available;
+
+	if(!waveout_open(this))
+	{
+		dbg(0, "Can't open wave output\n");
+		return 1;
+	}
+
+	this->free_buffers = NULL;
+	create_buffers(this);
+
+	speech_message_dispatcher(this);
+
+    return 0;
+}
+
+static int
+espeak_say(struct speech_priv *this, const char *text)
+{
+	dbg(1, "Speak: '%s'\n", text);
+	char *phrase = g_strdup(text);
+
+	if (!PostMessage(this->h_queue, msg_say, (WPARAM)this, (LPARAM)phrase))
+	{
+		dbg(0, "PostThreadMessage 'say' failed\n");
+	}
+
+	return 0;
+}
+
+static void free_list(gpointer pointer, gpointer this )
+{
+	if ( this )
+	{
+		struct speech_priv *sp_priv = (struct speech_priv *)this;
+		WAVEHDR *WaveHeader = (WAVEHDR *)pointer;
+
+		waveOutUnprepareHeader(sp_priv->h_wave_out, WaveHeader, sizeof(WAVEHDR));
+		VirtualFree(WaveHeader->lpData, WaveHeader->dwBufferLength, MEM_DECOMMIT);
+	}
+	g_free(pointer);
+}
+
+static void
+espeak_destroy(struct speech_priv *this)
+{
+	g_list_foreach( this->free_buffers, free_list, (gpointer)this );
+	g_list_free( this->free_buffers );
+
+	g_list_foreach( this->phrases, free_list, 0 );
+	g_list_free(this->phrases);
+
+	waveout_close(this);
+	g_free(this);
+}
+
+static struct speech_methods espeak_meth = {
+	espeak_destroy,
+	espeak_say,
+};
+
+static struct speech_priv *
+espeak_new(struct speech_methods *meth, struct attr **attrs) {
+	struct speech_priv *this = NULL;
+	struct attr *path;
+	struct attr *language;
+	char *lang_str = "default";
+
+	path=attr_search(attrs, NULL, attr_path);
+	if (! path)
+	{
+		dbg(0, "Missing path to espeak data\n");
+		return NULL;
+	}
+	strcpy(path_home,path->u.str);
+
+	if ( !initialise() )
+	{
+		return NULL;
+	}
+
+	language=attr_search(attrs, NULL, attr_language);
+	if ( language )
+	{
+		lang_str = language->u.str;
+	}
+
+	if(SetVoiceByName(lang_str) != EE_OK)
+	{
+		dbg(0, "Error setting language to: '%s'\n", lang_str);
+	}
+
+	SetParameter(espeakRATE,170,0);
+	SetParameter(espeakVOLUME,100,0);
+	SetParameter(espeakCAPITALS,option_capitals,0);
+	SetParameter(espeakPUNCTUATION,option_punctuation,0);
+	SetParameter(espeakWORDGAP,0,0);
+
+//	if(pitch_adjustment != 50)
+//	{
+//		SetParameter(espeakPITCH,pitch_adjustment,0);
+//	}
+	DoVoiceChange(voice);
+
+	this=g_new(struct speech_priv,1);
+	this->h_message_thread = CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE)startThread, (PVOID)this, 0, NULL);
+
+	*meth=espeak_meth;
+
+
+	return this;
+}
+
+void
+plugin_init(void)
+{
+	plugin_register_speech_type("espeak", espeak_new);
+}