From 4f8857d608f70aa137fa9e27f0726ccd6feaae50 Mon Sep 17 00:00:00 2001
From: Joshua Colp <jcolp@digium.com>
Date: Mon, 13 Aug 2007 14:51:09 +0000
Subject: [PATCH] Add an API call to allow the engine to know that DTMF was
 received.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@79207 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 apps/app_speech_utils.c   |  1 +
 include/asterisk/speech.h |  4 ++++
 res/res_speech.c          | 15 +++++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/apps/app_speech_utils.c b/apps/app_speech_utils.c
index c545db7cdc..cf559c453b 100644
--- a/apps/app_speech_utils.c
+++ b/apps/app_speech_utils.c
@@ -722,6 +722,7 @@ static int speech_background(struct ast_channel *chan, void *data)
                         /* Free the frame we received */
                         switch (f->frametype) {
                         case AST_FRAME_DTMF:
+				ast_speech_dtmf(speech, f->subclass);
 				if (dtmf_terminator != '\0' && f->subclass == dtmf_terminator) {
 					done = 1;
 				} else {
diff --git a/include/asterisk/speech.h b/include/asterisk/speech.h
index 85e17edf2a..85a3514851 100644
--- a/include/asterisk/speech.h
+++ b/include/asterisk/speech.h
@@ -83,6 +83,8 @@ struct ast_speech_engine {
 	int (*deactivate)(struct ast_speech *speech, char *grammar_name);
 	/*! Write audio to the speech engine */
 	int (*write)(struct ast_speech *speech, void *data, int len);
+	/*! Signal DTMF was received */
+	int (*dtmf)(struct ast_speech *speech, char dtmf);
 	/*! Prepare engine to accept audio */
 	int (*start)(struct ast_speech *speech);
 	/*! Change an engine specific setting */
@@ -130,6 +132,8 @@ struct ast_speech *ast_speech_new(char *engine_name, int format);
 int ast_speech_destroy(struct ast_speech *speech);
 /*! \brief Write audio to the speech engine */
 int ast_speech_write(struct ast_speech *speech, void *data, int len);
+/*! \brief Signal to the engine that DTMF was received */
+int ast_speech_dtmf(struct ast_speech *speech, char dtmf);
 /*! \brief Change an engine specific attribute */
 int ast_speech_change(struct ast_speech *speech, char *name, const char *value);
 /*! \brief Change the type of results we want */
diff --git a/res/res_speech.c b/res/res_speech.c
index 73dfe8dec6..5b8f3569c2 100644
--- a/res/res_speech.c
+++ b/res/res_speech.c
@@ -193,6 +193,21 @@ int ast_speech_write(struct ast_speech *speech, void *data, int len)
 	return res;
 }
 
+/*! \brief Signal to the engine that DTMF was received */
+int ast_speech_dtmf(struct ast_speech *speech, char dtmf)
+{
+	int res = 0;
+
+	if (speech->state != AST_SPEECH_STATE_READY)
+		return -1;
+
+	if (speech->engine->dtmf != NULL) {
+		res = speech->engine->dtmf(speech, dtmf);
+	}
+
+	return res;
+}
+
 /*! \brief Change an engine specific attribute */
 int ast_speech_change(struct ast_speech *speech, char *name, const char *value)
 {