Expand speech API so that the developer can interact with the engine more directly and use specific functions of the connector even if a generic API call is not available

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@37881 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 25 insertions, 0 deletions

diff --git a/apps/app_speech_utils.c b/apps/app_speech_utils.c
index c464576f7..a63eee828 100644
--- a/apps/app_speech_utils.c
+++ b/apps/app_speech_utils.c
@@ -228,6 +228,29 @@ static struct ast_custom_function speech_grammar_function = {
         .write = NULL,
 };
 
+/*! \brief SPEECH_ENGINE() Dialplan Function */
+static int speech_engine_write(struct ast_channel *chan, char *cmd, char *data, const char *value)
+{
+	struct ast_speech *speech = find_speech(chan);
+
+	if (data == NULL || speech == NULL)
+		return -1;
+
+	ast_speech_change(speech, data, value);
+
+	return 0;
+}
+
+static struct ast_custom_function speech_engine_function = {
+	.name = "SPEECH_ENGINE",
+	.synopsis = "Change a speech engine specific attribute.",
+	.syntax = "SPEECH_ENGINE(name)=value",
+	.desc =
+	"Changes a speech engine specific attribute.\n",
+	.read = NULL,
+	.write = speech_engine_write,
+};
+
 /*! \brief SPEECH() Dialplan Function */
 static int speech_read(struct ast_channel *chan, char *cmd, char *data,
 			char *buf, size_t len)
@@ -746,6 +769,7 @@ static int unload_module(void *mod)
 	res |= ast_custom_function_unregister(&speech_score_function);
 	res |= ast_custom_function_unregister(&speech_text_function);
 	res |= ast_custom_function_unregister(&speech_grammar_function);
+	res |= ast_custom_function_unregister(&speech_engine_function);
 
 	STANDARD_HANGUP_LOCALUSERS;
 
@@ -769,6 +793,7 @@ static int load_module(void *mod)
 	res |= ast_custom_function_register(&speech_score_function);
 	res |= ast_custom_function_register(&speech_text_function);
 	res |= ast_custom_function_register(&speech_grammar_function);
+	res |= ast_custom_function_register(&speech_engine_function);
 
 	return res;
 }