bool UmcFramework::CreateMrcpClient()
{
/* create MRCP client stack first */
m_pMrcpClient = unimrcp_client_create(m_pDirLayout);
if(!m_pMrcpClient)
return false;
/* create MRCP application to send/get requests to/from MRCP client stack */
m_pMrcpApplication = mrcp_application_create(AppMessageHandler,this,m_pPool);
if(!m_pMrcpApplication)
{
mrcp_client_destroy(m_pMrcpClient);
m_pMrcpClient = NULL;
return false;
}
/* register MRCP application to MRCP client */
mrcp_client_application_register(m_pMrcpClient,m_pMrcpApplication,"UMC");
/* start MRCP client stack processing */
if(mrcp_client_start(m_pMrcpClient) == FALSE)
{
mrcp_client_destroy(m_pMrcpClient);
m_pMrcpClient = NULL;
m_pMrcpApplication = NULL;
return false;
}
return true;
}
/** Create demo framework */
demo_framework_t* demo_framework_create(apt_dir_layout_t *dir_layout)
{
demo_framework_t *framework = NULL;
mrcp_client_t *client = unimrcp_client_create(dir_layout);
if(client) {
demo_application_t *demo_application;
apr_pool_t *pool = mrcp_client_memory_pool_get(client);
/* create demo framework */
framework = apr_palloc(pool,sizeof(demo_framework_t));
framework->pool = pool;
framework->client = client;
framework->application_table = apr_hash_make(pool);
/* create demo synthesizer application */
demo_application = demo_synth_application_create(framework->pool);
if(demo_application) {
demo_framework_app_register(framework,demo_application,"synth");
}
/* create demo recognizer application */
demo_application = demo_recog_application_create(framework->pool);
if(demo_application) {
demo_framework_app_register(framework,demo_application,"recog");
}
/* create demo bypass media application */
demo_application = demo_bypass_application_create(framework->pool);
if(demo_application) {
demo_framework_app_register(framework,demo_application,"bypass");
}
/* create demo resource discover application */
demo_application = demo_discover_application_create(framework->pool);
if(demo_application) {
demo_framework_app_register(framework,demo_application,"discover");
}
demo_framework_consumer_task_create(framework);
if(framework->task) {
apt_task_t *task = apt_consumer_task_base_get(framework->task);
apt_task_start(task);
}
/* start client stack */
mrcp_client_start(client);
}
return framework;
}
/** \brief Load module */
static int load_module(void)
{
ast_log(LOG_NOTICE, "Load Res-Speech-UniMRCP module\n");
if(uni_engine_load() == FALSE) {
return AST_MODULE_LOAD_FAILURE;
}
if(mrcp_client_start(uni_engine.client) != TRUE) {
ast_log(LOG_ERROR, "Failed to start MRCP client\n");
uni_engine_unload();
return AST_MODULE_LOAD_FAILURE;
}
#if AST_VERSION_AT_LEAST(10,0,0)
#if AST_VERSION_AT_LEAST(13,0,0)
ast_engine.formats = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
#elif AST_VERSION_AT_LEAST(12,0,0)
ast_engine.formats = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_NOLOCK);
#else /* <= 11 */
ast_engine.formats = ast_format_cap_alloc_nolock();
#endif
if(!ast_engine.formats) {
ast_log(LOG_ERROR, "Failed to alloc media format capabilities\n");
uni_engine_unload();
return AST_MODULE_LOAD_FAILURE;
}
#if AST_VERSION_AT_LEAST(13,0,0)
ast_format_cap_append(ast_engine.formats, ast_format_slin, 0);
#else
struct ast_format format;
ast_format_set(&format, AST_FORMAT_SLINEAR, 0);
ast_format_cap_add(ast_engine.formats, &format);
#endif
#else /* <= 1.8 */
ast_engine.formats = AST_FORMAT_SLINEAR;
#endif
if(ast_speech_register(&ast_engine)) {
ast_log(LOG_ERROR, "Failed to register module\n");
mrcp_client_shutdown(uni_engine.client);
uni_engine_unload();
return AST_MODULE_LOAD_FAILURE;
}
return AST_MODULE_LOAD_SUCCESS;
}
/** Create ASR engine */
ASR_CLIENT_DECLARE(asr_engine_t*) asr_engine_create(
const char *root_dir_path,
apt_log_priority_e log_priority,
apt_log_output_e log_output)
{
apr_pool_t *pool = NULL;
apt_dir_layout_t *dir_layout;
asr_engine_t *engine;
mrcp_client_t *mrcp_client;
mrcp_application_t *mrcp_app;
/* create APR pool */
pool = apt_pool_create();
if(!pool) {
return NULL;
}
/* create the structure of default directories layout */
dir_layout = apt_default_dir_layout_create(root_dir_path,pool);
/* create singleton logger */
apt_log_instance_create(log_output,log_priority,pool);
if((log_output & APT_LOG_OUTPUT_FILE) == APT_LOG_OUTPUT_FILE) {
/* open the log file */
apt_log_file_open(dir_layout->log_dir_path,"unimrcpclient",MAX_LOG_FILE_SIZE,MAX_LOG_FILE_COUNT,FALSE,pool);
}
engine = apr_palloc(pool,sizeof(asr_engine_t));
engine->pool = pool;
engine->mrcp_client = NULL;
engine->mrcp_app = NULL;
/* create UniMRCP client stack */
mrcp_client = unimrcp_client_create(dir_layout);
if(!mrcp_client) {
apt_log_instance_destroy();
apr_pool_destroy(pool);
return NULL;
}
/* create an application */
mrcp_app = mrcp_application_create(
app_message_handler,
engine,
pool);
if(!mrcp_app) {
mrcp_client_destroy(mrcp_client);
apt_log_instance_destroy();
apr_pool_destroy(pool);
return NULL;
}
/* register application in client stack */
mrcp_client_application_register(mrcp_client,mrcp_app,"ASRAPP");
/* start client stack */
if(mrcp_client_start(mrcp_client) != TRUE) {
mrcp_client_destroy(mrcp_client);
apt_log_instance_destroy();
apr_pool_destroy(pool);
return NULL;
}
engine->mrcp_client = mrcp_client;
engine->mrcp_app = mrcp_app;
return engine;
}
int main(int argc, char const* argv[])
{
apr_pool_t* pool = NULL;
apr_pool_t* spool = NULL;
int i;
struct iovec cattext[101];
static char const SP = ' ';
char const* outfile;
apr_status_t status;
apt_dir_layout_t* dirLayout = NULL;
mrcp_client_t* client = NULL;
mrcp_application_t* app = NULL;
mrcp_session_t* sess = NULL;
mpf_stream_capabilities_t* caps = NULL;
mpf_termination_t* term = NULL;
mrcp_channel_t* chan = NULL;
struct stat info;
if (argc < 2) {
puts("Usage:");
printf("\t%s \"This is a synthetic voice.\"", argv[0]);
exit(1);
}
/* Just detect various directory layout constellations */
if (stat(ROOT_DIR, &info))
ROOT_DIR = ROOT_DIR2;
if (stat(ROOT_DIR, &info))
ROOT_DIR = ROOT_DIR3;
/* Initialize platform first */
if (apr_initialize() != APR_SUCCESS) FAIL("Cannot initialize APR platform");
pool = apt_pool_create();
if (!pool) FAIL("Not enough memory");
for (i = 0; (i < argc - 2) && (i < 50); i += 2) {
cattext[2 * i].iov_base = (void*) argv[i + 1];
cattext[2 * i].iov_len = strlen(argv[i + 1]);
cattext[2 * i + 1].iov_base = (void*) &SP;
cattext[2 * i + 1].iov_len = 1;
}
cattext[2 * i].iov_base = (void*) argv[i + 1];
cattext[2 * i].iov_len = strlen(argv[i + 1]);
text = apr_pstrcatv(pool, cattext, 2 * i + 1, NULL);
if (!text) FAIL("Not enough memory");
outfile = apr_pstrcat(pool, ROOT_DIR, "/data/", PCM_OUT_FILE, NULL);
printf("This is a sample C UniMRCP client synthesizer scenario.\n");
printf("Use client configuration from %s/conf/unimrcpclient.xml\n", ROOT_DIR);
printf("Use profile %s\n", MRCP_PROFILE);
printf("Synthesize text: `%s'\n", text);
printf("Write output to file: %s\n", outfile);
printf("\n");
printf("Press enter to start the session...\n");
(void) getchar();
apt_log_instance_create(APT_LOG_OUTPUT_NONE, APT_PRIO_DEBUG, pool);
apt_log_ext_handler_set(UniSynth_logger);
dirLayout = apt_default_dir_layout_create(ROOT_DIR, pool);
/* Create and start the client in a root dir */
client = unimrcp_client_create(dirLayout);
if (!client) FAIL("Cannot create UniMRCP client");
app = mrcp_application_create(UniSynthAppMsgHandler, NULL, mrcp_client_memory_pool_get(client));
if (!app) FAIL("Cannot create MRCP application");
if (!mrcp_client_application_register(client, app, "Sample C app"))
FAIL("Cannot register MRCP application");
if (!mrcp_client_start(client)) FAIL("Cannot start MRCP client");
/* Create a session using MRCP profile MRCP_PROFILE */
sess = mrcp_application_session_create(app, MRCP_PROFILE, NULL);
if (!sess) FAIL("Cannot create session");
spool = mrcp_application_session_pool_get(sess);
/* Create audio termination with capabilities */
caps = mpf_stream_capabilities_create(STREAM_DIRECTION_SEND, spool);
if (!caps) FAIL("Error creating capabilities");
if (!mpf_codec_capabilities_add(&caps->codecs, MPF_SAMPLE_RATE_8000, "LPCM"))
FAIL("Error adding codec capabilities");
term = mrcp_application_audio_termination_create(sess, &stream_vtable, caps, NULL);
if (!term) FAIL("Cannot create audio termination");
/* Add signaling channel (and start processing in OnAdd method */
f = fopen(outfile, "wb");
if (!f) FAIL("Cannot open output file");
status = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_DEFAULT, pool);
if (status != APR_SUCCESS) FAIL("Cannot create mutex");
status = apr_thread_cond_create(&cond, pool);
if (status != APR_SUCCESS) FAIL("Cannot create condition variable");
chan = mrcp_application_channel_create(sess, MRCP_SYNTHESIZER_RESOURCE, term, NULL, NULL);
if (!chan) FAIL("Cannot create channel");
if (!mrcp_application_channel_add(sess, chan))
FAIL("Cannot add channel");
/* Now wait until the processing finishes */
apr_thread_mutex_lock(mutex);
while (err < 0) apr_thread_cond_wait(cond, mutex);
apr_thread_mutex_unlock(mutex);
cleanup:
if (sess) mrcp_application_session_terminate(sess);
if (f) fclose(f);
if (client) mrcp_client_shutdown(client);
if (app) mrcp_application_destroy(app);
if (client) mrcp_client_destroy(client);
apt_log_instance_destroy();
if (pool) apr_pool_destroy(pool);
apr_terminate();
puts("Program finished, memory released. Press any key to exit.");
(void) getchar();
return err;
}
AST_COMPAT_STATIC int load_module(void)
{
int res = 0;
apr_hash_index_t *hi;
if (apr_initialized == 0) {
if (apr_initialize() != APR_SUCCESS) {
ast_log(LOG_ERROR, "Unable to initialize APR\n");
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
} else {
ast_log(LOG_DEBUG, "APR initialized\n");
apr_initialized = 1;
}
}
/* Initialize globals. */
if (globals_init() != 0) {
ast_log(LOG_DEBUG, "Unable to initialize globals\n");
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
}
/* Load the configuration file mrcp.conf. */
#if AST_VERSION_AT_LEAST(1,6,0)
struct ast_flags config_flags = { 0 };
struct ast_config *cfg = ast_config_load(MRCP_CONFIG, config_flags);
#else
struct ast_config *cfg = ast_config_load(MRCP_CONFIG);
#endif
if (!cfg) {
ast_log(LOG_WARNING, "No such configuration file %s\n", MRCP_CONFIG);
globals_destroy();
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
}
if (load_mrcp_config(cfg) != 0) {
ast_log(LOG_DEBUG, "Unable to load configuration\n");
globals_destroy();
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
}
/* Link UniMRCP logs to Asterisk. */
ast_log(LOG_NOTICE, "UniMRCP log level = %s\n", globals.unimrcp_log_level);
apt_log_priority_e log_priority = apt_log_priority_translate(globals.unimrcp_log_level);
if (apt_log_instance_create(APT_LOG_OUTPUT_NONE, log_priority, globals.pool) == FALSE) {
/* Already created. */
apt_log_priority_set(log_priority);
}
apt_log_ext_handler_set(unimrcp_log);
/* Create the MRCP client. */
if ((globals.mrcp_client = mod_unimrcp_client_create(globals.pool)) == NULL) {
ast_log(LOG_ERROR, "Failed to create MRCP client\n");
if (!apt_log_instance_destroy())
ast_log(LOG_WARNING, "Unable to destroy UniMRCP logger instance\n");
globals_destroy();
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
}
/* Load the applications. */
load_mrcpsynth_app();
load_mrcprecog_app();
load_synthandrecog_app();
/* Start the client stack. */
if (!mrcp_client_start(globals.mrcp_client)) {
ast_log(LOG_ERROR, "Failed to start MRCP client stack processing\n");
if (!mrcp_client_destroy(globals.mrcp_client))
ast_log(LOG_WARNING, "Unable to destroy MRCP client stack\n");
else
ast_log(LOG_DEBUG, "MRCP client stack destroyed\n");
globals.mrcp_client = NULL;
if (!apt_log_instance_destroy())
ast_log(LOG_WARNING, "Unable to destroy UniMRCP logger instance\n");
globals_destroy();
apr_terminate();
apr_initialized = 0;
return AST_MODULE_LOAD_DECLINE;
}
/* Register the applications. */
for (hi = apr_hash_first(NULL, globals.apps); hi; hi = apr_hash_next(hi)) {
const void *key;
void *val;
const char *name;
ast_mrcp_application_t *application;
apr_hash_this(hi, &key, NULL, &val);
name = (const char *) key;
application = (ast_mrcp_application_t *) val;
#if AST_VERSION_AT_LEAST(1,6,2)
res |= ast_register_application_xml(name, application->exec);
#else
res |= ast_register_application(name, application->exec, application->synopsis, application->description);
#endif
}
return res;
}