| /* com_svox_picottsengine.cpp |
| |
| * Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| * This is the Manager layer. It sits on top of the native Pico engine |
| * and provides the interface to the defined Google TTS engine API. |
| * The Google engine API is the boundary to allow a TTS engine to be swapped. |
| * The Manager layer also provide the SSML tag interpretation. |
| * The supported SSML tags are mapped to corresponding tags natively supported by Pico. |
| * Native Pico functions always begin with picoXXX. |
| * |
| * In the Pico engine, the language cannot be changed indpendently of the voice. |
| * If either the voice or locale/language are changed, a new resource is loaded. |
| * |
| * Only a subset of SSML 1.0 tags are supported. |
| * Some SSML tags involve significant complexity. |
| * If the language is changed through an SSML tag, there is a latency for the load. |
| * |
| */ |
| //#define LOG_NDEBUG 0 |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| |
| #define LOG_TAG "SVOX Pico Engine" |
| |
| #include <utils/Log.h> |
| #include <utils/String16.h> /* for strlen16 */ |
| #include <TtsEngine.h> |
| |
| #include <cutils/jstring.h> |
| #include <picoapi.h> |
| #include <picodefs.h> |
| |
| #include "svox_ssml_parser.h" |
| |
| using namespace android; |
| |
| /* adaptation layer defines */ |
| #define PICO_MEM_SIZE 2500000 |
| /* speaking rate */ |
| #define PICO_MIN_RATE 20 |
| #define PICO_MAX_RATE 500 |
| #define PICO_DEF_RATE 100 |
| /* speaking pitch */ |
| #define PICO_MIN_PITCH 50 |
| #define PICO_MAX_PITCH 200 |
| #define PICO_DEF_PITCH 100 |
| /* speaking volume */ |
| #define PICO_MIN_VOLUME 0 |
| #define PICO_MAX_VOLUME 500 |
| #define PICO_DEF_VOLUME 100 |
| |
| /* string constants */ |
| #define MAX_OUTBUF_SIZE 128 |
| const char * PICO_SYSTEM_LINGWARE_PATH = "/system/tts/lang_pico/"; |
| const char * PICO_LINGWARE_PATH = "/sdcard/svox/"; |
| const char * PICO_VOICE_NAME = "PicoVoice"; |
| const char * PICO_SPEED_OPEN_TAG = "<speed level='%d'>"; |
| const char * PICO_SPEED_CLOSE_TAG = "</speed>"; |
| const char * PICO_PITCH_OPEN_TAG = "<pitch level='%d'>"; |
| const char * PICO_PITCH_CLOSE_TAG = "</pitch>"; |
| const char * PICO_VOLUME_OPEN_TAG = "<volume level='%d'>"; |
| const char * PICO_VOLUME_CLOSE_TAG = "</volume>"; |
| const char * PICO_PHONEME_OPEN_TAG = "<phoneme ph='"; |
| const char * PICO_PHONEME_CLOSE_TAG = "'/>"; |
| |
| /* supported voices |
| Pico does not seperately specify the voice and locale. */ |
| const char * picoSupportedLangIso3[] = { "eng", "eng", "deu", "spa", "fra", "ita" }; |
| const char * picoSupportedCountryIso3[] = { "USA", "GBR", "DEU", "ESP", "FRA", "ITA" }; |
| const char * picoSupportedLang[] = { "en-US", "en-GB", "de-DE", "es-ES", "fr-FR", "it-IT" }; |
| const char * picoInternalLang[] = { "en-US", "en-GB", "de-DE", "es-ES", "fr-FR", "it-IT" }; |
| const char * picoInternalTaLingware[] = { "en-US_ta.bin", "en-GB_ta.bin", "de-DE_ta.bin", "es-ES_ta.bin", "fr-FR_ta.bin", "it-IT_ta.bin" }; |
| const char * picoInternalSgLingware[] = { "en-US_lh0_sg.bin", "en-GB_kh0_sg.bin", "de-DE_gl0_sg.bin", "es-ES_zl0_sg.bin", "fr-FR_nk0_sg.bin", "it-IT_cm0_sg.bin" }; |
| const char * picoInternalUtppLingware[] = { "en-US_utpp.bin", "en-GB_utpp.bin", "de-DE_utpp.bin", "es-ES_utpp.bin", "fr-FR_utpp.bin", "it-IT_utpp.bin" }; |
| const int picoNumSupportedVocs = 6; |
| |
| /* supported properties */ |
| const char * picoSupportedProperties[] = { "language", "rate", "pitch", "volume" }; |
| const int picoNumSupportedProperties = 4; |
| |
| |
| /* adapation layer global variables */ |
| synthDoneCB_t * picoSynthDoneCBPtr; |
| void * picoMemArea = NULL; |
| pico_System picoSystem = NULL; |
| pico_Resource picoTaResource = NULL; |
| pico_Resource picoSgResource = NULL; |
| pico_Resource picoUtppResource = NULL; |
| pico_Engine picoEngine = NULL; |
| pico_Char * picoTaFileName = NULL; |
| pico_Char * picoSgFileName = NULL; |
| pico_Char * picoUtppFileName = NULL; |
| pico_Char * picoTaResourceName = NULL; |
| pico_Char * picoSgResourceName = NULL; |
| pico_Char * picoUtppResourceName = NULL; |
| int picoSynthAbort = 0; |
| char * picoProp_currLang = NULL; /* current language */ |
| int picoProp_currRate = PICO_DEF_RATE; /* current rate */ |
| int picoProp_currPitch = PICO_DEF_PITCH; /* current pitch */ |
| int picoProp_currVolume = PICO_DEF_VOLUME; /* current volume */ |
| |
| int picoCurrentLangIndex = -1; |
| |
| char * pico_alt_lingware_path = NULL; |
| |
| |
| /* internal helper functions */ |
| |
| /** checkForLocale |
| * Check whether the requested locale is among the supported locales. |
| * @locale - the locale to check, either in xx or xx-YY format |
| * return index of the locale, or -1 if not supported. |
| */ |
| static int checkForLocale( const char * locale ) |
| { |
| int found = -1; /* language not found */ |
| int i; |
| if (locale == NULL) { |
| ALOGE("checkForLocale called with NULL language"); |
| return found; |
| } |
| |
| /* Verify that the requested locale is a locale that we support. */ |
| for (i = 0; i < picoNumSupportedVocs; i ++) { |
| if (strcmp(locale, picoSupportedLang[i]) == 0) { /* in array */ |
| found = i; |
| break; |
| } |
| }; |
| |
| /* The exact locale was not found. */ |
| if (found < 0) { |
| /* We didn't find an exact match; it may have been specified with only the first 2 characters. |
| This could overmatch ISO 639-3 language codes.%% */ |
| |
| /* check whether the current language matches the locale's language */ |
| if ((picoCurrentLangIndex > -1) && |
| (strncmp(locale, picoSupportedLang[picoCurrentLangIndex], 2) == 0)) { |
| /* the current language matches the requested language, let's use it */ |
| found = picoCurrentLangIndex; |
| } else { |
| /* check whether we can find a match at least on the language */ |
| for (i = 0; i < picoNumSupportedVocs; i ++) { |
| if (strncmp(locale, picoSupportedLang[i], 2) == 0) { |
| found = i; |
| break; |
| } |
| } |
| } |
| |
| if (found < 0) { |
| ALOGE("TtsEngine::set language called with unsupported locale %s", locale); |
| } |
| }; |
| return found; |
| } |
| |
| |
| /** cleanResources |
| * Unloads any loaded Pico resources. |
| */ |
| static void cleanResources( void ) |
| { |
| if (picoEngine) { |
| pico_disposeEngine( picoSystem, &picoEngine ); |
| pico_releaseVoiceDefinition( picoSystem, (pico_Char *) PICO_VOICE_NAME ); |
| picoEngine = NULL; |
| } |
| if (picoUtppResource) { |
| pico_unloadResource( picoSystem, &picoUtppResource ); |
| picoUtppResource = NULL; |
| } |
| if (picoTaResource) { |
| pico_unloadResource( picoSystem, &picoTaResource ); |
| picoTaResource = NULL; |
| } |
| if (picoSgResource) { |
| pico_unloadResource( picoSystem, &picoSgResource ); |
| picoSgResource = NULL; |
| } |
| |
| if (picoSystem) { |
| pico_terminate(&picoSystem); |
| picoSystem = NULL; |
| } |
| picoCurrentLangIndex = -1; |
| } |
| |
| |
| /** cleanFiles |
| * Frees any memory allocated for file and resource strings. |
| */ |
| static void cleanFiles( void ) |
| { |
| if (picoProp_currLang) { |
| free( picoProp_currLang ); |
| picoProp_currLang = NULL; |
| } |
| |
| if (picoTaFileName) { |
| free( picoTaFileName ); |
| picoTaFileName = NULL; |
| } |
| |
| if (picoSgFileName) { |
| free( picoSgFileName ); |
| picoSgFileName = NULL; |
| } |
| |
| if (picoUtppFileName) { |
| free( picoUtppFileName ); |
| picoUtppFileName = NULL; |
| } |
| |
| if (picoTaResourceName) { |
| free( picoTaResourceName ); |
| picoTaResourceName = NULL; |
| } |
| |
| if (picoSgResourceName) { |
| free( picoSgResourceName ); |
| picoSgResourceName = NULL; |
| } |
| |
| if (picoUtppResourceName) { |
| free( picoUtppResourceName ); |
| picoUtppResourceName = NULL; |
| } |
| } |
| |
| /** hasResourcesForLanguage |
| * Check to see if the resources required to load the language at the specified index |
| * are properly installed |
| * @langIndex - the index of the language to check the resources for. The index is valid. |
| * return true if the required resources are installed, false otherwise |
| */ |
| static bool hasResourcesForLanguage(int langIndex) { |
| FILE * pFile; |
| char* fileName = (char*)malloc(PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE); |
| |
| /* check resources on system (under PICO_SYSTEM_LINGWARE_PATH). */ |
| strcpy((char*)fileName, PICO_SYSTEM_LINGWARE_PATH); |
| strcat((char*)fileName, (const char*)picoInternalTaLingware[langIndex]); |
| pFile = fopen(fileName, "r"); |
| if (pFile != NULL) { |
| /* "ta" file found. */ |
| fclose (pFile); |
| /* now look for "sg" file. */ |
| strcpy((char*)fileName, PICO_SYSTEM_LINGWARE_PATH); |
| strcat((char*)fileName, (const char*)picoInternalSgLingware[langIndex]); |
| pFile = fopen(fileName, "r"); |
| if (pFile != NULL) { |
| /* "sg" file found, no need to continue checking, return success. */ |
| fclose(pFile); |
| free(fileName); |
| return true; |
| } |
| } |
| |
| /* resources not found on system, check resources on alternative location */ |
| /* (under pico_alt_lingware_path). */ |
| strcpy((char*)fileName, pico_alt_lingware_path); |
| strcat((char*)fileName, (const char*)picoInternalTaLingware[langIndex]); |
| pFile = fopen(fileName, "r"); |
| if (pFile == NULL) { |
| free(fileName); |
| return false; |
| } else { |
| fclose (pFile); |
| } |
| |
| strcpy((char*)fileName, pico_alt_lingware_path); |
| strcat((char*)fileName, (const char*)picoInternalSgLingware[langIndex]); |
| pFile = fopen(fileName, "r"); |
| if (pFile == NULL) { |
| free(fileName); |
| return false; |
| } else { |
| fclose(pFile); |
| free(fileName); |
| return true; |
| } |
| } |
| |
| /** doLanguageSwitchFromLangIndex |
| * Switch to the requested locale. |
| * If the locale is already loaded, it returns immediately. |
| * If another locale is already is loaded, it will first be unloaded and the new one then loaded. |
| * If no locale is loaded, the requested locale will be loaded. |
| * @langIndex - the index of the locale/voice to load, which is guaranteed to be supported. |
| * return TTS_SUCCESS or TTS_FAILURE |
| */ |
| static tts_result doLanguageSwitchFromLangIndex( int langIndex ) |
| { |
| int ret; /* function result code */ |
| |
| if (langIndex>=0) { |
| /* If we already have a loaded locale, check whether it is the same one as requested. */ |
| if (picoProp_currLang && (strcmp(picoProp_currLang, picoSupportedLang[langIndex]) == 0)) { |
| //ALOGI("Language already loaded (%s == %s)", picoProp_currLang, |
| // picoSupportedLang[langIndex]); |
| return TTS_SUCCESS; |
| } |
| } |
| |
| /* It is not the same locale; unload the current one first. Also invalidates the system object*/ |
| cleanResources(); |
| |
| /* Allocate memory for file and resource names. */ |
| cleanFiles(); |
| |
| if (picoSystem==NULL) { |
| /*re-init system object*/ |
| ret = pico_initialize( picoMemArea, PICO_MEM_SIZE, &picoSystem ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to initialize the pico system object\n"); |
| return TTS_FAILURE; |
| } |
| } |
| |
| picoProp_currLang = (char *) malloc( 10 ); |
| picoTaFileName = (pico_Char *) malloc( PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE ); |
| picoSgFileName = (pico_Char *) malloc( PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE ); |
| picoUtppFileName = (pico_Char *) malloc( PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE ); |
| picoTaResourceName = (pico_Char *) malloc( PICO_MAX_RESOURCE_NAME_SIZE ); |
| picoSgResourceName = (pico_Char *) malloc( PICO_MAX_RESOURCE_NAME_SIZE ); |
| picoUtppResourceName =(pico_Char *) malloc( PICO_MAX_RESOURCE_NAME_SIZE ); |
| |
| if ( |
| (picoProp_currLang==NULL) || (picoTaFileName==NULL) || (picoSgFileName==NULL) || |
| (picoUtppFileName==NULL) || (picoTaResourceName==NULL) || (picoSgResourceName==NULL) || |
| (picoUtppResourceName==NULL) |
| ) { |
| ALOGE("Failed to allocate memory for internal strings\n"); |
| cleanResources(); |
| return TTS_FAILURE; |
| } |
| |
| /* Find where to load the resource files from: system or alternative location */ |
| /* based on availability of the Ta file. Try the alternative location first, this is where */ |
| /* more recent language file updates would be installed (under pico_alt_lingware_path). */ |
| bool bUseSystemPath = true; |
| FILE * pFile; |
| char* tmpFileName = (char*)malloc(PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE); |
| strcpy((char*)tmpFileName, pico_alt_lingware_path); |
| strcat((char*)tmpFileName, (const char*)picoInternalTaLingware[langIndex]); |
| pFile = fopen(tmpFileName, "r"); |
| if (pFile != NULL) { |
| /* "ta" file found under pico_alt_lingware_path, don't use the system path. */ |
| fclose (pFile); |
| bUseSystemPath = false; |
| } |
| free(tmpFileName); |
| |
| /* Set the path and file names for resource files. */ |
| if (bUseSystemPath) { |
| strcpy((char *) picoTaFileName, PICO_SYSTEM_LINGWARE_PATH); |
| strcpy((char *) picoSgFileName, PICO_SYSTEM_LINGWARE_PATH); |
| strcpy((char *) picoUtppFileName, PICO_SYSTEM_LINGWARE_PATH); |
| } else { |
| strcpy((char *) picoTaFileName, pico_alt_lingware_path); |
| strcpy((char *) picoSgFileName, pico_alt_lingware_path); |
| strcpy((char *) picoUtppFileName, pico_alt_lingware_path); |
| } |
| strcat((char *) picoTaFileName, (const char *) picoInternalTaLingware[langIndex]); |
| strcat((char *) picoSgFileName, (const char *) picoInternalSgLingware[langIndex]); |
| strcat((char *) picoUtppFileName, (const char *) picoInternalUtppLingware[langIndex]); |
| |
| /* Load the text analysis Lingware resource file. */ |
| ret = pico_loadResource( picoSystem, picoTaFileName, &picoTaResource ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to load textana resource for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Load the signal generation Lingware resource file. */ |
| ret = pico_loadResource( picoSystem, picoSgFileName, &picoSgResource ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to load siggen resource for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Load the utpp Lingware resource file if exists - NOTE: this file is optional |
| and is currently not used. Loading is only attempted for future compatibility. |
| If this file is not present the loading will still succeed. */ |
| ret = pico_loadResource( picoSystem, picoUtppFileName, &picoUtppResource ); |
| if ((PICO_OK != ret) && (ret != PICO_EXC_CANT_OPEN_FILE)) { |
| ALOGE("Failed to load utpp resource for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Get the text analysis resource name. */ |
| ret = pico_getResourceName( picoSystem, picoTaResource, (char *) picoTaResourceName ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to get textana resource name for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Get the signal generation resource name. */ |
| ret = pico_getResourceName( picoSystem, picoSgResource, (char *) picoSgResourceName ); |
| if ((PICO_OK == ret) && (picoUtppResource != NULL)) { |
| /* Get utpp resource name - optional: see note above. */ |
| ret = pico_getResourceName( picoSystem, picoUtppResource, (char *) picoUtppResourceName ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to get utpp resource name for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| } |
| if (PICO_OK != ret) { |
| ALOGE("Failed to get siggen resource name for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Create a voice definition. */ |
| ret = pico_createVoiceDefinition( picoSystem, (const pico_Char *) PICO_VOICE_NAME ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to create voice for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Add the text analysis resource to the voice. */ |
| ret = pico_addResourceToVoiceDefinition( picoSystem, (const pico_Char *) PICO_VOICE_NAME, picoTaResourceName ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to add textana resource to voice for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Add the signal generation resource to the voice. */ |
| ret = pico_addResourceToVoiceDefinition( picoSystem, (const pico_Char *) PICO_VOICE_NAME, picoSgResourceName ); |
| if ((PICO_OK == ret) && (picoUtppResource != NULL)) { |
| /* Add utpp resource to voice - optional: see note above. */ |
| ret = pico_addResourceToVoiceDefinition( picoSystem, (const pico_Char *) PICO_VOICE_NAME, picoUtppResourceName ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to add utpp resource to voice for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| } |
| |
| if (PICO_OK != ret) { |
| ALOGE("Failed to add siggen resource to voice for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| ret = pico_newEngine( picoSystem, (const pico_Char *) PICO_VOICE_NAME, &picoEngine ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to create engine for %s [%d]", picoSupportedLang[langIndex], ret); |
| cleanResources(); |
| cleanFiles(); |
| return TTS_FAILURE; |
| } |
| |
| /* Set the current locale/voice. */ |
| strcpy( picoProp_currLang, picoSupportedLang[langIndex] ); |
| picoCurrentLangIndex = langIndex; |
| ALOGI("loaded %s successfully", picoProp_currLang); |
| return TTS_SUCCESS; |
| } |
| |
| |
| /** doLanguageSwitch |
| * Switch to the requested locale. |
| * If this locale is already loaded, it returns immediately. |
| * If another locale is already loaded, this will first be unloaded |
| * and the new one then loaded. |
| * If no locale is loaded, the requested will be loaded. |
| * @locale - the locale to check, either in xx or xx-YY format (i.e "en" or "en-US") |
| * return TTS_SUCCESS or TTS_FAILURE |
| */ |
| static tts_result doLanguageSwitch( const char * locale ) |
| { |
| int loclIndex; /* locale index */ |
| |
| /* Load the new locale. */ |
| loclIndex = checkForLocale( locale ); |
| if (loclIndex < 0) { |
| ALOGE("Tried to swith to non-supported locale %s", locale); |
| return TTS_FAILURE; |
| } |
| //ALOGI("Found supported locale %s", picoSupportedLang[loclIndex]); |
| return doLanguageSwitchFromLangIndex( loclIndex ); |
| } |
| |
| |
| /** doAddProperties |
| * Add <speed>, <pitch> and <volume> tags to the text, |
| * if the properties have been set to non-default values, and return the new string. |
| * The calling function is responsible for freeing the returned string. |
| * @str - text to apply tags to |
| * return new string with tags applied |
| */ |
| static char * doAddProperties( const char * str ) |
| { |
| char * data = NULL; |
| int haspitch, hasspeed, hasvol; /* parameters */ |
| int textlen; /* property string length */ |
| haspitch = 0; hasspeed = 0; hasvol = 0; |
| textlen = strlen(str) + 1; |
| if (picoProp_currPitch != PICO_DEF_PITCH) { /* non-default pitch */ |
| textlen += strlen(PICO_PITCH_OPEN_TAG) + 5; |
| textlen += strlen(PICO_PITCH_CLOSE_TAG); |
| haspitch = 1; |
| } |
| if (picoProp_currRate != PICO_DEF_RATE) { /* non-default rate */ |
| textlen += strlen(PICO_SPEED_OPEN_TAG) + 5; |
| textlen += strlen(PICO_SPEED_CLOSE_TAG); |
| hasspeed = 1; |
| } |
| |
| if (picoProp_currVolume != PICO_DEF_VOLUME) { /* non-default volume */ |
| textlen += strlen(PICO_VOLUME_OPEN_TAG) + 5; |
| textlen += strlen(PICO_VOLUME_CLOSE_TAG); |
| hasvol = 1; |
| } |
| |
| /* Compose the property strings. */ |
| data = (char *) malloc( textlen ); /* allocate string */ |
| if (!data) { |
| return NULL; |
| } |
| memset(data, 0, textlen); /* clear it */ |
| if (haspitch) { |
| char* tmp = (char*)malloc(strlen(PICO_PITCH_OPEN_TAG) + strlen(PICO_PITCH_CLOSE_TAG) + 5); |
| sprintf(tmp, PICO_PITCH_OPEN_TAG, picoProp_currPitch); |
| strcat(data, tmp); |
| free(tmp); |
| } |
| |
| if (hasspeed) { |
| char* tmp = (char*)malloc(strlen(PICO_SPEED_OPEN_TAG) + strlen(PICO_SPEED_CLOSE_TAG) + 5); |
| sprintf(tmp, PICO_SPEED_OPEN_TAG, picoProp_currRate); |
| strcat(data, tmp); |
| free(tmp); |
| } |
| |
| if (hasvol) { |
| char* tmp = (char*)malloc(strlen(PICO_VOLUME_OPEN_TAG) + strlen(PICO_VOLUME_CLOSE_TAG) + 5); |
| sprintf(tmp, PICO_VOLUME_OPEN_TAG, picoProp_currVolume); |
| strcat(data, tmp); |
| free(tmp); |
| } |
| |
| strcat(data, str); |
| if (hasvol) { |
| strcat(data, PICO_VOLUME_CLOSE_TAG); |
| } |
| |
| if (hasspeed) { |
| strcat(data, PICO_SPEED_CLOSE_TAG); |
| } |
| |
| if (haspitch) { |
| strcat(data, PICO_PITCH_CLOSE_TAG); |
| } |
| return data; |
| } |
| |
| |
| /** get_tok |
| * Searches for tokens in a string |
| * @str - text to be processed |
| * @pos - position of first character to be searched in str |
| * @textlen - postion of last character to be searched |
| * @tokstart - address of a variable to receive the start of the token found |
| * @tokstart - address of a variable to receive the length of the token found |
| * return : 1=token found, 0=token not found |
| * notes : the token separator set could be enlarged adding characters in "seps" |
| */ |
| static int get_tok(const char * str , int pos, int textlen, int *tokstart, int *toklen) |
| { |
| const char * seps = " "; |
| |
| /*look for start*/ |
| while ((pos<textlen) && (strchr(seps,str[pos]) != NULL)) { |
| pos++; |
| } |
| if (pos == textlen) { |
| /*no characters != seps found whithin string*/ |
| return 0; |
| } |
| *tokstart = pos; |
| /*look for end*/ |
| while ((pos<textlen) && (strchr(seps,str[pos]) == NULL)) { |
| pos++; |
| } |
| *toklen = pos - *tokstart; |
| return 1; |
| }/*get_tok*/ |
| |
| |
| /** get_sub_tok |
| * Searches for subtokens in a token having a compound structure with camel case like "xxxYyyy" |
| * @str - text to be processed |
| * @pos - position of first character to be searched in str |
| * @textlen - postion of last character to be searched in str |
| * @tokstart - address of a variable to receive the start of the sub token found |
| * @tokstart - address of a variable to receive the length of the sub token found |
| * return : 1=sub token found, 0=sub token not found |
| * notes : the sub token separator set could be enlarged adding characters in "seps" |
| */ |
| static int get_sub_tok(const char * str , int pos, int textlen, int *tokstart, int *toklen) { |
| |
| const char * seps = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
| |
| if (pos == textlen) { |
| return 0; |
| } |
| |
| /*first char != space*/ |
| *tokstart = pos; |
| /*finding first non separator*/ |
| while ((pos < textlen) && (strchr(seps, str[pos]) != NULL)) { |
| pos++; |
| } |
| if (pos == textlen) { |
| /*characters all in seps found whithin string : return full token*/ |
| *toklen = pos - *tokstart; |
| return 1; |
| } |
| /*pos should be pointing to first non seps and more chars are there*/ |
| /*finding first separator*/ |
| while ((pos < textlen) && (strchr(seps, str[pos]) == NULL)) { |
| pos++; |
| } |
| if (pos == textlen) { |
| /*transition non seps->seps not found : return full token*/ |
| *toklen = pos - *tokstart; |
| return 1; |
| } |
| *toklen = pos - *tokstart; |
| return 1; |
| }/*get_sub_tok*/ |
| |
| |
| /** doCamelCase |
| * Searches for tokens having a compound structure with camel case and transforms them as follows : |
| * "XxxxYyyy" -->> "Xxxx Yyyy", |
| * "xxxYyyy" -->> "xxx Yyyy", |
| * "XXXYyyy" -->> "XXXYyyy" |
| * etc.... |
| * The calling function is responsible for freeing the returned string. |
| * @str - text to be processed |
| * return new string with text processed |
| */ |
| static char * doCamelCase( const char * str ) |
| { |
| int textlen; /* input string length */ |
| int totlen; /* output string length */ |
| int tlen_2, nsubtok; /* nuber of subtokens */ |
| int toklen, tokstart; /*legnth and start of generic token*/ |
| int stoklen, stokstart; /*legnth and start of generic sub-token*/ |
| int pos, tokpos, outpos; /*postion of current char in input string and token and output*/ |
| char *data; /*pointer of the returned string*/ |
| |
| pos = 0; |
| tokpos = 0; |
| toklen = 0; |
| stoklen = 0; |
| tlen_2 = 0; |
| totlen = 0; |
| |
| textlen = strlen(str) + 1; |
| |
| /*counting characters after sub token splitting including spaces*/ |
| //while ((pos<textlen) && (str[pos]!=0)) { |
| while (get_tok(str, pos, textlen, &tokstart, &toklen)) { |
| tokpos = tokstart; |
| tlen_2 = 0; |
| nsubtok = 0; |
| while (get_sub_tok(str, tokpos, tokstart+toklen, &stokstart, &stoklen)) { |
| totlen += stoklen; |
| tlen_2 += stoklen; |
| tokpos = stokstart + stoklen; |
| nsubtok += 1; |
| } |
| totlen += nsubtok; /*add spaces between subtokens*/ |
| pos = tokstart + tlen_2; |
| } |
| //} |
| /* Allocate the return string */ |
| |
| data = (char *) malloc( totlen ); /* allocate string */ |
| if (!data) { |
| return NULL; |
| } |
| memset(data, 0, totlen); /* clear it */ |
| outpos = 0; |
| pos = 0; |
| /*copying characters*/ |
| //while ((pos<textlen) && (str[pos]!=0)) { |
| while (get_tok (str, pos, textlen, &tokstart, &toklen)) { |
| tokpos = tokstart; |
| tlen_2 = 0; |
| nsubtok = 0; |
| while (get_sub_tok(str, tokpos, tokstart+toklen, &stokstart, &stoklen)) { |
| strncpy(&(data[outpos]), &(str[stokstart]), stoklen); |
| outpos += stoklen; |
| strncpy(&(data[outpos]), " ", 1); |
| tlen_2 += stoklen; |
| outpos += 1; |
| tokpos = stokstart + stoklen; |
| } |
| pos=tokstart+tlen_2; |
| } |
| //} |
| if (outpos == 0) { |
| outpos = 1; |
| } |
| data[outpos-1] = 0; |
| return data; |
| }/*doCamelCase*/ |
| |
| |
| /** createPhonemeString |
| * Wrap all individual words in <phoneme> tags. |
| * The Pico <phoneme> tag only supports one word in each tag, |
| * therefore they must be individually wrapped! |
| * @xsampa - text to convert to Pico phomene string |
| * @length - length of the input string |
| * return new string with tags applied |
| */ |
| extern char * createPhonemeString( const char * xsampa, int length ) |
| { |
| char * convstring = NULL; |
| int origStrLen = strlen(xsampa); |
| int numWords = 1; |
| int start, totalLength, i, j; |
| |
| for (i = 0; i < origStrLen; i ++) { |
| if ((xsampa[i] == ' ') || (xsampa[i] == '#')) { |
| numWords ++; |
| } |
| } |
| |
| if (numWords == 1) { |
| convstring = new char[origStrLen + 17]; |
| convstring[0] = '\0'; |
| strcat(convstring, PICO_PHONEME_OPEN_TAG); |
| strcat(convstring, xsampa); |
| strcat(convstring, PICO_PHONEME_CLOSE_TAG); |
| } else { |
| char * words[numWords]; |
| start = 0; totalLength = 0; i = 0; j = 0; |
| for (i=0, j=0; i < origStrLen; i++) { |
| if ((xsampa[i] == ' ') || (xsampa[i] == '#')) { |
| words[j] = new char[i+1-start+17]; |
| words[j][0] = '\0'; |
| strcat( words[j], PICO_PHONEME_OPEN_TAG); |
| strncat(words[j], xsampa+start, i-start); |
| strcat( words[j], PICO_PHONEME_CLOSE_TAG); |
| start = i + 1; |
| j++; |
| totalLength += strlen(words[j-1]); |
| } |
| } |
| words[j] = new char[i+1-start+17]; |
| words[j][0] = '\0'; |
| strcat(words[j], PICO_PHONEME_OPEN_TAG); |
| strcat(words[j], xsampa+start); |
| strcat(words[j], PICO_PHONEME_CLOSE_TAG); |
| totalLength += strlen(words[j]); |
| convstring = new char[totalLength + 1]; |
| convstring[0] = '\0'; |
| for (i=0 ; i < numWords ; i++) { |
| strcat(convstring, words[i]); |
| delete [] words[i]; |
| } |
| } |
| |
| return convstring; |
| } |
| |
| /* The XSAMPA uses as many as 5 characters to represent a single IPA code. */ |
| typedef struct tagPhnArr |
| { |
| char16_t strIPA; /* IPA Unicode symbol */ |
| char strXSAMPA[6]; /* SAMPA sequence */ |
| } PArr; |
| |
| #define phn_cnt (134+7) |
| |
| PArr PhnAry[phn_cnt] = { |
| |
| /* XSAMPA conversion table |
| This maps a single IPA symbol to a sequence representing XSAMPA. |
| This relies upon a direct one-to-one correspondance |
| including diphthongs and affricates. */ |
| |
| /* Vowels (23) complete */ |
| {0x025B, "E"}, |
| {0x0251, "A"}, |
| {0x0254, "O"}, |
| {0x00F8, "2"}, |
| {0x0153, "9"}, |
| {0x0276, "&"}, |
| {0x0252, "Q"}, |
| {0x028C, "V"}, |
| {0x0264, "7"}, |
| {0x026F, "M"}, |
| {0x0268, "1"}, |
| {0x0289, "}"}, |
| {0x026A, "I"}, |
| {0x028F, "Y"}, |
| {0x028A, "U"}, |
| {0x0259, "@"}, |
| {0x0275, "8"}, |
| {0x0250, "6"}, |
| {0x00E6, "{"}, |
| {0x025C, "3"}, |
| {0x025A, "@`"}, |
| {0x025E, "3\\\\"}, |
| {0x0258, "@\\\\"}, |
| |
| /* Consonants (60) complete */ |
| {0x0288, "t`"}, |
| {0x0256, "d`"}, |
| {0x025F, "J\\\\"}, |
| {0x0261, "g"}, |
| {0x0262, "G\\\\"}, |
| {0x0294, "?"}, |
| {0x0271, "F"}, |
| {0x0273, "n`"}, |
| {0x0272, "J"}, |
| {0x014B, "N"}, |
| {0x0274, "N\\\\"}, |
| {0x0299, "B\\\\"}, |
| {0x0280, "R\\\\"}, |
| {0x027E, "4"}, |
| {0x027D, "r`"}, |
| {0x0278, "p\\\\"}, |
| {0x03B2, "B"}, |
| {0x03B8, "T"}, |
| {0x00F0, "D"}, |
| {0x0283, "S"}, |
| {0x0292, "Z"}, |
| {0x0282, "s`"}, |
| {0x0290, "z`"}, |
| {0x00E7, "C"}, |
| {0x029D, "j\\\\"}, |
| {0x0263, "G"}, |
| {0x03C7, "X"}, |
| {0x0281, "R"}, |
| {0x0127, "X\\\\"}, |
| {0x0295, "?\\\\"}, |
| {0x0266, "h\\\\"}, |
| {0x026C, "K"}, |
| {0x026E, "K\\\\"}, |
| {0x028B, "P"}, |
| {0x0279, "r\\\\"}, |
| {0x027B, "r\\\\'"}, |
| {0x0270, "M\\\\"}, |
| {0x026D, "l`"}, |
| {0x028E, "L"}, |
| {0x029F, "L\\\\"}, |
| {0x0253, "b_<"}, |
| {0x0257, "d_<"}, |
| {0x0284, "J\\_<"}, |
| {0x0260, "g_<"}, |
| {0x029B, "G\\_<"}, |
| {0x028D, "W"}, |
| {0x0265, "H"}, |
| {0x029C, "H\\\\"}, |
| {0x02A1, ">\\\\"}, |
| {0x02A2, "<\\\\"}, |
| {0x0267, "x\\\\"}, /* hooktop heng */ |
| {0x0298, "O\\\\"}, |
| {0x01C0, "|\\\\"}, |
| {0x01C3, "!\\\\"}, |
| {0x01C2, "=\\"}, |
| {0x01C1, "|\\|\\"}, |
| {0x027A, "l\\\\"}, |
| {0x0255, "s\\\\"}, |
| {0x0291, "z\\\\"}, |
| {0x026B, "l_G"}, |
| |
| |
| /* Diacritics (37) complete */ |
| {0x02BC, "_>"}, |
| {0x0325, "_0"}, |
| {0x030A, "_0"}, |
| {0x032C, "_v"}, |
| {0x02B0, "_h"}, |
| {0x0324, "_t"}, |
| {0x0330, "_k"}, |
| {0x033C, "_N"}, |
| {0x032A, "_d"}, |
| {0x033A, "_a"}, |
| {0x033B, "_m"}, |
| {0x0339, "_O"}, |
| {0x031C, "_c"}, |
| {0x031F, "_+"}, |
| {0x0320, "_-"}, |
| {0x0308, "_\""}, /* centralized */ |
| {0x033D, "_x"}, |
| {0x0318, "_A"}, |
| {0x0319, "_q"}, |
| {0x02DE, "`"}, |
| {0x02B7, "_w"}, |
| {0x02B2, "_j"}, |
| {0x02E0, "_G"}, |
| {0x02E4, "_?\\\\"}, /* pharyngealized */ |
| {0x0303, "~"}, /* nasalized */ |
| {0x207F, "_n"}, |
| {0x02E1, "_l"}, |
| {0x031A, "_}"}, |
| {0x0334, "_e"}, |
| {0x031D, "_r"}, /* raised equivalent to 02D4 */ |
| {0x02D4, "_r"}, /* raised equivalent to 031D */ |
| {0x031E, "_o"}, /* lowered equivalent to 02D5 */ |
| {0x02D5, "_o"}, /* lowered equivalent to 031E */ |
| {0x0329, "="}, /* sylabic */ |
| {0x032F, "_^"}, /* non-sylabic */ |
| {0x0361, "_"}, /* top tie bar */ |
| {0x035C, "_"}, |
| |
| /* Suprasegmental (15) incomplete */ |
| {0x02C8, "\""}, /* primary stress */ |
| {0x02CC, "%"}, /* secondary stress */ |
| {0x02D0, ":"}, /* long */ |
| {0x02D1, ":\\\\"}, /* half-long */ |
| {0x0306, "_X"}, /* extra short */ |
| |
| {0x2016, "||"}, /* major group */ |
| {0x203F, "-\\\\"}, /* bottom tie bar */ |
| {0x2197, "<R>"}, /* global rise */ |
| {0x2198, "<F>"}, /* global fall */ |
| {0x2193, "<D>"}, /* downstep */ |
| {0x2191, "<U>"}, /* upstep */ |
| {0x02E5, "<T>"}, /* extra high level */ |
| {0x02E7, "<M>"}, /* mid level */ |
| {0x02E9, "<B>"}, /* extra low level */ |
| |
| {0x025D, "3`:"}, /* non-IPA %% */ |
| |
| /* Affricates (6) complete */ |
| {0x02A3, "d_z"}, |
| {0x02A4, "d_Z"}, |
| {0x02A5, "d_z\\\\"}, |
| {0x02A6, "t_s"}, |
| {0x02A7, "t_S"}, |
| {0x02A8, "t_s\\\\"} |
| }; |
| |
| |
| void CnvIPAPnt( const char16_t IPnt, char * XPnt ) |
| { |
| char16_t ThisPnt = IPnt; /* local copy of single IPA codepoint */ |
| int idx; /* index into table */ |
| |
| /* Convert an individual IPA codepoint. |
| A single IPA code could map to a string. |
| Search the table. If it is not found, use the same character. |
| Since most codepoints can be contained within 16 bits, |
| they are represented as wide chars. */ |
| XPnt[0] = 0; /* clear the result string */ |
| |
| /* Search the table for the conversion. */ |
| for (idx = 0; idx < phn_cnt; idx ++) { /* for each item in table */ |
| if (IPnt == PhnAry[idx].strIPA) { /* matches IPA code */ |
| strcat( XPnt, (const char *)&(PhnAry[idx].strXSAMPA) ); /* copy the XSAMPA string */ |
| return; |
| } |
| } |
| strcat(XPnt, (const char *)&ThisPnt); /* just copy it */ |
| } |
| |
| |
| /** cnvIpaToXsampa |
| * Convert an IPA character string to an XSAMPA character string. |
| * @ipaString - input IPA string to convert |
| * @outXsampaString - converted XSAMPA string is passed back in this parameter |
| * return size of the new string |
| */ |
| |
| int cnvIpaToXsampa( const char16_t * ipaString, size_t ipaStringSize, char ** outXsampaString ) |
| { |
| size_t xsize; /* size of result */ |
| size_t ipidx; /* index into IPA string */ |
| char * XPnt; /* short XSAMPA char sequence */ |
| |
| /* Convert an IPA string to an XSAMPA string and store the xsampa string in *outXsampaString. |
| It is the responsibility of the caller to free the allocated string. |
| Increment through the string. For each base & combination convert it to the XSAMP equivalent. |
| Because of the XSAMPA limitations, not all IPA characters will be covered. */ |
| XPnt = (char *) malloc(6); |
| xsize = (4 * ipaStringSize) + 8; /* assume more than double size */ |
| *outXsampaString = (char *) malloc( xsize );/* allocate return string */ |
| *outXsampaString[0] = 0; |
| xsize = 0; /* clear final */ |
| |
| for (ipidx = 0; ipidx < ipaStringSize; ipidx ++) { /* for each IPA code */ |
| CnvIPAPnt( ipaString[ipidx], XPnt ); /* get converted character */ |
| strcat((char *)*outXsampaString, XPnt ); /* concatenate XSAMPA */ |
| } |
| free(XPnt); |
| xsize = strlen(*outXsampaString); /* get the final length */ |
| return xsize; |
| } |
| |
| |
| /* Google Engine API function implementations */ |
| |
| /** init |
| * Allocates Pico memory block and initializes the Pico system. |
| * synthDoneCBPtr - Pointer to callback function which will receive generated samples |
| * config - the engine configuration parameters, here only contains the non-system path |
| * for the lingware location |
| * return tts_result |
| */ |
| tts_result TtsEngine::init( synthDoneCB_t synthDoneCBPtr, const char *config ) |
| { |
| if (synthDoneCBPtr == NULL) { |
| ALOGE("Callback pointer is NULL"); |
| return TTS_FAILURE; |
| } |
| |
| picoMemArea = malloc( PICO_MEM_SIZE ); |
| if (!picoMemArea) { |
| ALOGE("Failed to allocate memory for Pico system"); |
| return TTS_FAILURE; |
| } |
| |
| pico_Status ret = pico_initialize( picoMemArea, PICO_MEM_SIZE, &picoSystem ); |
| if (PICO_OK != ret) { |
| ALOGE("Failed to initialize Pico system"); |
| free( picoMemArea ); |
| picoMemArea = NULL; |
| return TTS_FAILURE; |
| } |
| |
| picoSynthDoneCBPtr = synthDoneCBPtr; |
| |
| picoCurrentLangIndex = -1; |
| |
| // was the initialization given an alternative path for the lingware location? |
| if ((config != NULL) && (strlen(config) > 0)) { |
| int max_filename_length = PICO_MAX_DATAPATH_NAME_SIZE + PICO_MAX_FILE_NAME_SIZE; |
| if (strlen(config) >= max_filename_length) { |
| ALOGE("The length of engine config is too long (should be less than %d bytes).", |
| max_filename_length); |
| return TTS_FAILURE; |
| } |
| pico_alt_lingware_path = (char*)malloc(strlen(config) + 1); |
| strcpy((char*)pico_alt_lingware_path, config); |
| ALOGV("Alternative lingware path %s", pico_alt_lingware_path); |
| } else { |
| pico_alt_lingware_path = (char*)malloc(strlen(PICO_LINGWARE_PATH) + 1); |
| strcpy((char*)pico_alt_lingware_path, PICO_LINGWARE_PATH); |
| ALOGV("Using predefined lingware path %s", pico_alt_lingware_path); |
| } |
| |
| return TTS_SUCCESS; |
| } |
| |
| |
| /** shutdown |
| * Unloads all Pico resources; terminates Pico system and frees Pico memory block. |
| * return tts_result |
| */ |
| tts_result TtsEngine::shutdown( void ) |
| { |
| cleanResources(); |
| |
| if (picoSystem) { |
| pico_terminate(&picoSystem); |
| picoSystem = NULL; |
| } |
| if (picoMemArea) { |
| free(picoMemArea); |
| picoMemArea = NULL; |
| } |
| |
| cleanFiles(); |
| return TTS_SUCCESS; |
| } |
| |
| |
| /** loadLanguage |
| * Load a new language. |
| * @lang - string with ISO 3 letter language code. |
| * @country - string with ISO 3 letter country code . |
| * @variant - string with language variant for that language and country pair. |
| * return tts_result |
| */ |
| tts_result TtsEngine::loadLanguage(const char *lang, const char *country, const char *variant) |
| { |
| return TTS_FAILURE; |
| //return setProperty("language", value, size); |
| } |
| |
| |
| /** setLanguage |
| * Load a new language (locale). Use the ISO 639-3 language codes. |
| * @lang - string with ISO 639-3 language code. |
| * @country - string with ISO 3 letter country code. |
| * @variant - string with language variant for that language and country pair. |
| * return tts_result |
| */ |
| tts_result TtsEngine::setLanguage( const char * lang, const char * country, const char * variant ) |
| { |
| //ALOGI("TtsEngine::setLanguage %s %s %s", lang, country, variant); |
| int langIndex; |
| int countryIndex; |
| int i; |
| |
| if (lang == NULL) |
| { |
| ALOGE("TtsEngine::setLanguage called with NULL language"); |
| return TTS_FAILURE; |
| } |
| |
| /* We look for a match on the language first |
| then we look for a match on the country. |
| If no match on the language: |
| return an error. |
| If match on the language, but no match on the country: |
| load the language found for the language match. |
| If match on the language, and match on the country: |
| load the language found for the country match. */ |
| |
| /* Find a match on the language. */ |
| langIndex = -1; /* no match */ |
| for (i = 0; i < picoNumSupportedVocs; i ++) |
| { |
| if (strcmp(lang, picoSupportedLangIso3[i]) == 0) |
| { |
| langIndex = i; |
| break; |
| } |
| } |
| if (langIndex < 0) |
| { |
| /* The language isn't supported. */ |
| ALOGE("TtsEngine::setLanguage called with unsupported language"); |
| return TTS_FAILURE; |
| } |
| |
| /* Find a match on the country, if there is one. */ |
| if (country != NULL) |
| { |
| countryIndex = -1; |
| for (i = langIndex; i < picoNumSupportedVocs; i ++) |
| { |
| if ( (strcmp(lang, picoSupportedLangIso3[i]) == 0) |
| && (strcmp(country, picoSupportedCountryIso3[i]) == 0)) |
| { |
| countryIndex = i; |
| break; |
| } |
| } |
| |
| if (countryIndex < 0) |
| { |
| /* We didn't find a match on the country, but we had a match on the language. |
| Use that language. */ |
| ALOGI("TtsEngine::setLanguage found matching language(%s) but not matching country(%s).", |
| lang, country); |
| } |
| else |
| { |
| /* We have a match on both the language and the country. */ |
| langIndex = countryIndex; |
| } |
| } |
| |
| return doLanguageSwitchFromLangIndex( langIndex ); /* switch the language */ |
| } |
| |
| |
| /** isLanguageAvailable |
| * Returns the level of support for a language. |
| * @lang - string with ISO 3 letter language code. |
| * @country - string with ISO 3 letter country code . |
| * @variant - string with language variant for that language and country pair. |
| * return tts_support_result |
| */ |
| tts_support_result TtsEngine::isLanguageAvailable(const char *lang, const char *country, |
| const char *variant) { |
| int langIndex = -1; |
| int countryIndex = -1; |
| //------------------------- |
| // language matching |
| // if no language specified |
| if (lang == NULL) { |
| ALOGE("TtsEngine::isLanguageAvailable called with no language"); |
| return TTS_LANG_NOT_SUPPORTED; |
| } |
| |
| // find a match on the language |
| for (int i = 0; i < picoNumSupportedVocs; i++) |
| { |
| if (strcmp(lang, picoSupportedLangIso3[i]) == 0) { |
| langIndex = i; |
| break; |
| } |
| } |
| if (langIndex < 0) { |
| // language isn't supported |
| ALOGV("TtsEngine::isLanguageAvailable called with unsupported language"); |
| return TTS_LANG_NOT_SUPPORTED; |
| } |
| |
| //------------------------- |
| // country matching |
| // if no country specified |
| if ((country == NULL) || (strlen(country) == 0)) { |
| // check installation of matched language |
| return (hasResourcesForLanguage(langIndex) ? TTS_LANG_AVAILABLE : TTS_LANG_MISSING_DATA); |
| } |
| |
| // find a match on the country |
| for (int i = langIndex; i < picoNumSupportedVocs; i++) { |
| if ((strcmp(lang, picoSupportedLangIso3[i]) == 0) |
| && (strcmp(country, picoSupportedCountryIso3[i]) == 0)) { |
| countryIndex = i; |
| break; |
| } |
| } |
| if (countryIndex < 0) { |
| // we didn't find a match on the country, but we had a match on the language |
| // check installation of matched language |
| return (hasResourcesForLanguage(langIndex) ? TTS_LANG_AVAILABLE : TTS_LANG_MISSING_DATA); |
| } else { |
| // we have a match on the language and the country |
| langIndex = countryIndex; |
| // check installation of matched language + country |
| return (hasResourcesForLanguage(langIndex) ? TTS_LANG_COUNTRY_AVAILABLE : TTS_LANG_MISSING_DATA); |
| } |
| |
| // no variants supported in this library, TTS_LANG_COUNTRY_VAR_AVAILABLE cannot be returned. |
| } |
| |
| |
| /** getLanguage |
| * Get the currently loaded language - if any. |
| * @lang - string with current ISO 3 letter language code, empty string if no loaded language. |
| * @country - string with current ISO 3 letter country code, empty string if no loaded language. |
| * @variant - string with current language variant, empty string if no loaded language. |
| * return tts_result |
| */ |
| tts_result TtsEngine::getLanguage(char *language, char *country, char *variant) |
| { |
| if (picoCurrentLangIndex == -1) { |
| strcpy(language, "\0"); |
| strcpy(country, "\0"); |
| strcpy(variant, "\0"); |
| } else { |
| strcpy(language, picoSupportedLangIso3[picoCurrentLangIndex]); |
| strcpy(country, picoSupportedCountryIso3[picoCurrentLangIndex]); |
| // no variant in this implementation |
| strcpy(variant, "\0"); |
| } |
| return TTS_SUCCESS; |
| } |
| |
| |
| /** setAudioFormat |
| * sets the audio format to use for synthesis, returns what is actually used. |
| * @encoding - reference to encoding format |
| * @rate - reference to sample rate |
| * @channels - reference to number of channels |
| * return tts_result |
| * */ |
| tts_result TtsEngine::setAudioFormat(tts_audio_format& encoding, uint32_t& rate, |
| int& channels) |
| { |
| // ignore the input parameters, the enforced audio parameters are fixed here |
| encoding = TTS_AUDIO_FORMAT_PCM_16_BIT; |
| rate = 16000; |
| channels = 1; |
| return TTS_SUCCESS; |
| } |
| |
| |
| /** setProperty |
| * Set property. The supported properties are: language, rate, pitch and volume. |
| * @property - name of property to set |
| * @value - value to set |
| * @size - size of value |
| * return tts_result |
| */ |
| tts_result TtsEngine::setProperty( const char * property, const char * value, const size_t size ) |
| { |
| int rate; |
| int pitch; |
| int volume; |
| |
| /* Set a specific property for the engine. |
| Supported properties include: language (locale), rate, pitch, volume. */ |
| /* Sanity check */ |
| if (property == NULL) { |
| ALOGE("setProperty called with property NULL"); |
| return TTS_PROPERTY_UNSUPPORTED; |
| } |
| |
| if (value == NULL) { |
| ALOGE("setProperty called with value NULL"); |
| return TTS_VALUE_INVALID; |
| } |
| |
| if (strncmp(property, "language", 8) == 0) { |
| /* Verify it's in correct format. */ |
| if (strlen(value) != 2 && strlen(value) != 6) { |
| ALOGE("change language called with incorrect format"); |
| return TTS_VALUE_INVALID; |
| } |
| |
| /* Try to switch to specified language. */ |
| if (doLanguageSwitch(value) == TTS_FAILURE) { |
| ALOGE("failed to load language"); |
| return TTS_FAILURE; |
| } else { |
| return TTS_SUCCESS; |
| } |
| } else if (strncmp(property, "rate", 4) == 0) { |
| rate = atoi(value); |
| if (rate < PICO_MIN_RATE) { |
| rate = PICO_MIN_RATE; |
| } |
| if (rate > PICO_MAX_RATE) { |
| rate = PICO_MAX_RATE; |
| } |
| picoProp_currRate = rate; |
| return TTS_SUCCESS; |
| } else if (strncmp(property, "pitch", 5) == 0) { |
| pitch = atoi(value); |
| if (pitch < PICO_MIN_PITCH) { |
| pitch = PICO_MIN_PITCH; |
| } |
| if (pitch > PICO_MAX_PITCH) { |
| pitch = PICO_MAX_PITCH; |
| } |
| picoProp_currPitch = pitch; |
| return TTS_SUCCESS; |
| } else if (strncmp(property, "volume", 6) == 0) { |
| volume = atoi(value); |
| if (volume < PICO_MIN_VOLUME) { |
| volume = PICO_MIN_VOLUME; |
| } |
| if (volume > PICO_MAX_VOLUME) { |
| volume = PICO_MAX_VOLUME; |
| } |
| picoProp_currVolume = volume; |
| return TTS_SUCCESS; |
| } |
| |
| return TTS_PROPERTY_UNSUPPORTED; |
| } |
| |
| |
| /** getProperty |
| * Get the property. Supported properties are: language, rate, pitch and volume. |
| * @property - name of property to get |
| * @value - buffer which will receive value of property |
| * @iosize - size of value - if size is too small on return this will contain actual size needed |
| * return tts_result |
| */ |
| tts_result TtsEngine::getProperty( const char * property, char * value, size_t * iosize ) |
| { |
| /* Get the property for the engine. |
| This property was previously set by setProperty or by default. */ |
| /* sanity check */ |
| if (property == NULL) { |
| ALOGE("getProperty called with property NULL"); |
| return TTS_PROPERTY_UNSUPPORTED; |
| } |
| |
| if (value == NULL) { |
| ALOGE("getProperty called with value NULL"); |
| return TTS_VALUE_INVALID; |
| } |
| |
| if (strncmp(property, "language", 8) == 0) { |
| if (picoProp_currLang == NULL) { |
| strcpy(value, ""); |
| } else { |
| if (*iosize < strlen(picoProp_currLang)+1) { |
| *iosize = strlen(picoProp_currLang) + 1; |
| return TTS_PROPERTY_SIZE_TOO_SMALL; |
| } |
| strcpy(value, picoProp_currLang); |
| } |
| return TTS_SUCCESS; |
| } else if (strncmp(property, "rate", 4) == 0) { |
| char tmprate[4]; |
| sprintf(tmprate, "%d", picoProp_currRate); |
| if (*iosize < strlen(tmprate)+1) { |
| *iosize = strlen(tmprate) + 1; |
| return TTS_PROPERTY_SIZE_TOO_SMALL; |
| } |
| strcpy(value, tmprate); |
| return TTS_SUCCESS; |
| } else if (strncmp(property, "pitch", 5) == 0) { |
| char tmppitch[4]; |
| sprintf(tmppitch, "%d", picoProp_currPitch); |
| if (*iosize < strlen(tmppitch)+1) { |
| *iosize = strlen(tmppitch) + 1; |
| return TTS_PROPERTY_SIZE_TOO_SMALL; |
| } |
| strcpy(value, tmppitch); |
| return TTS_SUCCESS; |
| } else if (strncmp(property, "volume", 6) == 0) { |
| char tmpvol[4]; |
| sprintf(tmpvol, "%d", picoProp_currVolume); |
| if (*iosize < strlen(tmpvol)+1) { |
| *iosize = strlen(tmpvol) + 1; |
| return TTS_PROPERTY_SIZE_TOO_SMALL; |
| } |
| strcpy(value, tmpvol); |
| return TTS_SUCCESS; |
| } |
| |
| /* Unknown property */ |
| ALOGE("Unsupported property"); |
| return TTS_PROPERTY_UNSUPPORTED; |
| } |
| |
| |
| /** synthesizeText |
| * Synthesizes a text string. |
| * The text string could be annotated with SSML tags. |
| * @text - text to synthesize |
| * @buffer - buffer which will receive generated samples |
| * @bufferSize - size of buffer |
| * @userdata - pointer to user data which will be passed back to callback function |
| * return tts_result |
| */ |
| tts_result TtsEngine::synthesizeText( const char * text, int8_t * buffer, size_t bufferSize, void * userdata ) |
| { |
| int err; |
| int cbret; |
| pico_Char * inp = NULL; |
| char * expanded_text = NULL; |
| pico_Char * local_text = NULL; |
| short outbuf[MAX_OUTBUF_SIZE/2]; |
| pico_Int16 bytes_sent, bytes_recv, text_remaining, out_data_type; |
| pico_Status ret; |
| SvoxSsmlParser * parser = NULL; |
| |
| picoSynthAbort = 0; |
| if (text == NULL) { |
| ALOGE("synthesizeText called with NULL string"); |
| return TTS_FAILURE; |
| } |
| |
| if (strlen(text) == 0) { |
| return TTS_SUCCESS; |
| } |
| |
| if (buffer == NULL) { |
| ALOGE("synthesizeText called with NULL buffer"); |
| return TTS_FAILURE; |
| } |
| |
| if ( (strncmp(text, "<speak", 6) == 0) || (strncmp(text, "<?xml", 5) == 0) ) { |
| /* SSML input */ |
| parser = new SvoxSsmlParser(); |
| if (parser && parser->initSuccessful()) { |
| err = parser->parseDocument(text, 1); |
| if (err == XML_STATUS_ERROR) { |
| /* Note: for some reason expat always thinks the input document has an error |
| at the end, even when the XML document is perfectly formed */ |
| ALOGI("Warning: SSML document parsed with errors"); |
| } |
| char * parsed_text = parser->getParsedDocument(); |
| if (parsed_text) { |
| /* Add property tags to the string - if any. */ |
| local_text = (pico_Char *) doAddProperties( parsed_text ); |
| if (!local_text) { |
| ALOGE("Failed to allocate memory for text string"); |
| delete parser; |
| return TTS_FAILURE; |
| } |
| char * lang = parser->getParsedDocumentLanguage(); |
| if (lang != NULL) { |
| if (doLanguageSwitch(lang) == TTS_FAILURE) { |
| ALOGE("Failed to switch to language (%s) specified in SSML document.", lang); |
| delete parser; |
| return TTS_FAILURE; |
| } |
| } else { |
| // lang is NULL, pick a language so the synthesis can be performed |
| if (picoCurrentLangIndex == -1) { |
| // no current language loaded, pick the first one and load it |
| if (doLanguageSwitchFromLangIndex(0) == TTS_FAILURE) { |
| ALOGE("Failed to switch to default language."); |
| delete parser; |
| return TTS_FAILURE; |
| } |
| } |
| //ALOGI("No language in SSML, using current language (%s).", picoProp_currLang); |
| } |
| delete parser; |
| } else { |
| ALOGE("Failed to parse SSML document"); |
| delete parser; |
| return TTS_FAILURE; |
| } |
| } else { |
| ALOGE("Failed to create SSML parser"); |
| if (parser) { |
| delete parser; |
| } |
| return TTS_FAILURE; |
| } |
| } else { |
| /* camelCase pre-processing */ |
| expanded_text = doCamelCase(text); |
| /* Add property tags to the string - if any. */ |
| local_text = (pico_Char *) doAddProperties( expanded_text ); |
| if (expanded_text) { |
| free( expanded_text ); |
| } |
| if (!local_text) { |
| ALOGE("Failed to allocate memory for text string"); |
| return TTS_FAILURE; |
| } |
| } |
| |
| text_remaining = strlen((const char *) local_text) + 1; |
| |
| inp = (pico_Char *) local_text; |
| |
| size_t bufused = 0; |
| |
| /* synthesis loop */ |
| while (text_remaining) { |
| if (picoSynthAbort) { |
| ret = pico_resetEngine( picoEngine, PICO_RESET_SOFT ); |
| break; |
| } |
| |
| /* Feed the text into the engine. */ |
| ret = pico_putTextUtf8( picoEngine, inp, text_remaining, &bytes_sent ); |
| if (ret != PICO_OK) { |
| ALOGE("Error synthesizing string '%s': [%d]", text, ret); |
| if (local_text) { |
| free( local_text ); |
| } |
| return TTS_FAILURE; |
| } |
| |
| text_remaining -= bytes_sent; |
| inp += bytes_sent; |
| do { |
| if (picoSynthAbort) { |
| ret = pico_resetEngine( picoEngine, PICO_RESET_SOFT ); |
| break; |
| } |
| /* Retrieve the samples and add them to the buffer. */ |
| ret = pico_getData( picoEngine, (void *) outbuf, MAX_OUTBUF_SIZE, &bytes_recv, |
| &out_data_type ); |
| if (bytes_recv) { |
| if ((bufused + bytes_recv) <= bufferSize) { |
| memcpy(buffer+bufused, (int8_t *) outbuf, bytes_recv); |
| bufused += bytes_recv; |
| } else { |
| /* The buffer filled; pass this on to the callback function. */ |
| cbret = picoSynthDoneCBPtr(userdata, 16000, TTS_AUDIO_FORMAT_PCM_16_BIT, 1, buffer, |
| bufused, TTS_SYNTH_PENDING); |
| if (cbret == TTS_CALLBACK_HALT) { |
| ALOGI("Halt requested by caller. Halting."); |
| picoSynthAbort = 1; |
| ret = pico_resetEngine( picoEngine, PICO_RESET_SOFT ); |
| break; |
| } |
| bufused = 0; |
| memcpy(buffer, (int8_t *) outbuf, bytes_recv); |
| bufused += bytes_recv; |
| } |
| } |
| } while (PICO_STEP_BUSY == ret); |
| |
| /* This chunk of synthesis is finished; pass the remaining samples. |
| Use 16 KHz, 16-bit samples. */ |
| if (!picoSynthAbort) { |
| picoSynthDoneCBPtr( userdata, 16000, TTS_AUDIO_FORMAT_PCM_16_BIT, 1, buffer, bufused, |
| TTS_SYNTH_PENDING); |
| } |
| picoSynthAbort = 0; |
| |
| if (ret != PICO_STEP_IDLE) { |
| if (ret != 0){ |
| ALOGE("Error occurred during synthesis [%d]", ret); |
| } |
| if (local_text) { |
| free(local_text); |
| } |
| ALOGV("Synth loop: sending TTS_SYNTH_DONE after error"); |
| picoSynthDoneCBPtr( userdata, 16000, TTS_AUDIO_FORMAT_PCM_16_BIT, 1, buffer, bufused, |
| TTS_SYNTH_DONE); |
| pico_resetEngine( picoEngine, PICO_RESET_SOFT ); |
| return TTS_FAILURE; |
| } |
| } |
| |
| /* Synthesis is done; notify the caller */ |
| ALOGV("Synth loop: sending TTS_SYNTH_DONE after all done, or was asked to stop"); |
| picoSynthDoneCBPtr( userdata, 16000, TTS_AUDIO_FORMAT_PCM_16_BIT, 1, buffer, bufused, |
| TTS_SYNTH_DONE); |
| |
| if (local_text) { |
| free( local_text ); |
| } |
| return TTS_SUCCESS; |
| } |
| |
| |
| |
| /** stop |
| * Aborts the running synthesis. |
| * return tts_result |
| */ |
| tts_result TtsEngine::stop( void ) |
| { |
| picoSynthAbort = 1; |
| return TTS_SUCCESS; |
| } |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| TtsEngine * getTtsEngine( void ) |
| { |
| return new TtsEngine(); |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
