/** Handle the responses sent to channel add requests */
static apt_bool_t synth_application_on_channel_add(mrcp_application_t *application, mrcp_session_t *session, mrcp_channel_t *channel, mrcp_sig_status_code_e status)
{
synth_app_channel_t *synth_channel = mrcp_application_channel_object_get(channel);
if(status == MRCP_SIG_STATUS_CODE_SUCCESS) {
mrcp_message_t *mrcp_message;
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(application);
/* create and send SPEAK request */
mrcp_message = demo_speak_message_create(session,channel,dir_layout);
if(mrcp_message) {
mrcp_application_message_send(session,channel,mrcp_message);
}
if(synth_channel && session) {
char *file_name = apr_pstrcat(session->pool,"synth-",session->id.buf,".pcm",NULL);
char *file_path = apt_datadir_filepath_get(dir_layout,file_name,session->pool);
if(file_path) {
synth_channel->audio_out = fopen(file_path,"wb");
}
}
}
else {
/* error case, just terminate the demo */
mrcp_application_session_terminate(session);
}
return TRUE;
}
/** Handle the responses sent to channel add requests */
static apt_bool_t demo_application_on_channel_add(mrcp_application_t *application, mrcp_session_t *session, mrcp_channel_t *channel, mrcp_sig_status_code_e status)
{
if(status == MRCP_SIG_STATUS_CODE_SUCCESS) {
mpf_rtp_termination_descriptor_t *rtp_descriptor;
mrcp_message_t *mrcp_message;
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(application);
/* create and send SPEAK request */
mrcp_message = demo_speak_message_create(session,channel,dir_layout);
if(mrcp_message) {
mrcp_application_message_send(session,channel,mrcp_message);
}
rtp_descriptor = mrcp_application_rtp_descriptor_get(channel);
if(rtp_descriptor) {
mpf_rtp_media_descriptor_t *local_media = rtp_descriptor->audio.local;
mpf_rtp_media_descriptor_t *remote_media = rtp_descriptor->audio.remote;
if(local_media && remote_media) {
apt_log(APT_PRIO_INFO,"Media Attributes: L[%s/%d] R[%s/%d]",
local_media->base.ip.buf,
local_media->base.port,
remote_media->base.ip.buf,
remote_media->base.port);
}
}
}
else {
/* error case, just terminate the demo */
mrcp_application_session_terminate(session);
}
return TRUE;
}
/** Handle the DEFINE-GRAMMAR responses */
static apt_bool_t recog_application_on_define_grammar(mrcp_application_t *application, mrcp_session_t *session, mrcp_channel_t *channel)
{
recog_app_channel_t *recog_channel = mrcp_application_channel_object_get(channel);
mrcp_message_t *mrcp_message;
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(application);
/* create and send RECOGNIZE request */
mrcp_message = demo_recognize_message_create(session,channel,dir_layout);
if(mrcp_message) {
mrcp_application_message_send(session,channel,mrcp_message);
}
if(recog_channel) {
const mpf_codec_descriptor_t *descriptor = mrcp_application_source_descriptor_get(channel);
char *file_name = apr_psprintf(session->pool,"one-%dkHz.pcm",
descriptor ? descriptor->sampling_rate/1000 : 8);
char *file_path = apt_datadir_filepath_get(dir_layout,file_name,session->pool);
if(file_path) {
recog_channel->audio_in = fopen(file_path,"rb");
if(recog_channel->audio_in) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Set [%s] as Speech Source",file_path);
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Cannot Find [%s]",file_path);
/* set some estimated time to complete */
recog_channel->time_to_complete = 5000; // 5 sec
}
}
}
return TRUE;
}
/** Create DEFINE-GRAMMAR request */
static mrcp_message_t* define_grammar_message_create(asr_session_t *asr_session, const char *grammar_file)
{
/* create MRCP message */
mrcp_message_t *mrcp_message = mrcp_application_message_create(
asr_session->mrcp_session,
asr_session->mrcp_channel,
RECOGNIZER_DEFINE_GRAMMAR);
if(mrcp_message) {
mrcp_generic_header_t *generic_header;
/* set message body */
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(asr_session->engine->mrcp_app);
apr_pool_t *pool = mrcp_application_session_pool_get(asr_session->mrcp_session);
char *grammar_file_path = apt_datadir_filepath_get(dir_layout,grammar_file,pool);
if(grammar_file_path) {
apr_finfo_t finfo;
apr_file_t *grammar_file;
apt_str_t *content = &mrcp_message->body;
if(apr_file_open(&grammar_file,grammar_file_path,APR_FOPEN_READ|APR_FOPEN_BINARY,0,pool) != APR_SUCCESS) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Open Grammar File %s",grammar_file_path);
return NULL;
}
if(apr_file_info_get(&finfo,APR_FINFO_SIZE,grammar_file) != APR_SUCCESS) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Get Grammar File Info %s",grammar_file_path);
apr_file_close(grammar_file);
return NULL;
}
content->length = (apr_size_t)finfo.size;
content->buf = (char*) apr_palloc(pool,content->length+1);
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Load Grammar File Content size [%"APR_SIZE_T_FMT" bytes] %s",
content->length,grammar_file_path);
if(apr_file_read(grammar_file,content->buf,&content->length) != APR_SUCCESS) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Read Grammar File Content %s",grammar_file_path);
apr_file_close(grammar_file);
return NULL;
}
content->buf[content->length] = '\0';
apr_file_close(grammar_file);
}
/* get/allocate generic header */
generic_header = mrcp_generic_header_prepare(mrcp_message);
if(generic_header) {
/* set generic header fields */
if(mrcp_message->start_line.version == MRCP_VERSION_2) {
apt_string_assign(&generic_header->content_type,"application/srgs+xml",mrcp_message->pool);
}
else {
apt_string_assign(&generic_header->content_type,"application/grammar+xml",mrcp_message->pool);
}
mrcp_generic_header_property_add(mrcp_message,GENERIC_HEADER_CONTENT_TYPE);
apt_string_assign(&generic_header->content_id,"demo-grammar",mrcp_message->pool);
mrcp_generic_header_property_add(mrcp_message,GENERIC_HEADER_CONTENT_ID);
}
}
return mrcp_message;
}
/** Handle the responses sent to channel add requests */
static apt_bool_t recog_application_on_channel_add(mrcp_application_t *application, mrcp_session_t *session, mrcp_channel_t *channel, mrcp_sig_status_code_e status)
{
if(status == MRCP_SIG_STATUS_CODE_SUCCESS) {
mrcp_message_t *mrcp_message;
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(application);
/* create and send DEFINE-GRAMMAR request */
mrcp_message = demo_define_grammar_message_create(session,channel,dir_layout);
if(mrcp_message) {
mrcp_application_message_send(session,channel,mrcp_message);
}
}
else {
/* error case, just terminate the demo */
mrcp_application_session_terminate(session);
}
return TRUE;
}
/** Create DEFINE-GRAMMAR request */
static mrcp_message_t* define_grammar_message_create(asr_session_t *asr_session, const char *grammar_file)
{
/* create MRCP message */
mrcp_message_t *mrcp_message = mrcp_application_message_create(
asr_session->mrcp_session,
asr_session->mrcp_channel,
RECOGNIZER_DEFINE_GRAMMAR);
if(mrcp_message) {
mrcp_generic_header_t *generic_header;
/* set message body */
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(asr_session->engine->mrcp_app);
apr_pool_t *pool = mrcp_application_session_pool_get(asr_session->mrcp_session);
char *grammar_file_path = apt_datadir_filepath_get(dir_layout,grammar_file,pool);
if(grammar_file_path) {
char text[1024];
apr_size_t size;
FILE *grammar = fopen(grammar_file_path,"r");
if(!grammar) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Cannot Open [%s]",grammar_file_path);
return NULL;
}
size = fread(text,1,sizeof(text),grammar);
apt_string_assign_n(&mrcp_message->body,text,size,mrcp_message->pool);
fclose(grammar);
}
/* get/allocate generic header */
generic_header = mrcp_generic_header_prepare(mrcp_message);
if(generic_header) {
/* set generic header fields */
if(mrcp_message->start_line.version == MRCP_VERSION_2) {
apt_string_assign(&generic_header->content_type,"application/srgs+xml",mrcp_message->pool);
}
else {
apt_string_assign(&generic_header->content_type,"application/grammar+xml",mrcp_message->pool);
}
mrcp_generic_header_property_add(mrcp_message,GENERIC_HEADER_CONTENT_TYPE);
apt_string_assign(&generic_header->content_id,"demo-grammar",mrcp_message->pool);
mrcp_generic_header_property_add(mrcp_message,GENERIC_HEADER_CONTENT_ID);
}
}
return mrcp_message;
}
/** Open audio input file */
static apt_bool_t asr_input_file_open(asr_session_t *asr_session, const char *input_file)
{
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(asr_session->engine->mrcp_app);
apr_pool_t *pool = mrcp_application_session_pool_get(asr_session->mrcp_session);
char *input_file_path = apt_datadir_filepath_get(dir_layout,input_file,pool);
if(!input_file_path) {
return FALSE;
}
if(asr_session->audio_in) {
fclose(asr_session->audio_in);
asr_session->audio_in = NULL;
}
asr_session->audio_in = fopen(input_file_path,"rb");
if(!asr_session->audio_in) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Cannot Open [%s]",input_file_path);
return FALSE;
}
return TRUE;
}
/** Handle the responses sent to channel add requests */
static apt_bool_t synth_application_on_channel_add(mrcp_application_t *application, mrcp_session_t *session, mrcp_channel_t *channel, mrcp_sig_status_code_e status)
{
if(status == MRCP_SIG_STATUS_CODE_SUCCESS) {
mrcp_message_t *mrcp_message;
synth_app_channel_t *synth_channel = mrcp_application_channel_object_get(channel);
apr_pool_t *pool = mrcp_application_session_pool_get(session);
const apt_dir_layout_t *dir_layout = mrcp_application_dir_layout_get(application);
const mpf_codec_descriptor_t *descriptor = mrcp_application_sink_descriptor_get(channel);
if(!descriptor) {
/* terminate the demo */
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Get Media Sink Descriptor");
return mrcp_application_session_terminate(session);
}
/* create and send SPEAK request */
mrcp_message = demo_speak_message_create(session,channel,dir_layout);
if(mrcp_message) {
mrcp_application_message_send(session,channel,mrcp_message);
}
if(synth_channel) {
const apt_str_t *id = mrcp_application_session_id_get(session);
char *file_name = apr_psprintf(pool,"synth-%dkHz-%s.pcm",
descriptor->sampling_rate/1000,
id->buf);
char *file_path = apt_datadir_filepath_get(dir_layout,file_name,pool);
if(file_path) {
synth_channel->audio_out = fopen(file_path,"wb");
}
}
}
else {
/* error case, just terminate the demo */
mrcp_application_session_terminate(session);
}
return TRUE;
}
