From 726464555cf605347b1c78b66647c2bb3914adc6 Mon Sep 17 00:00:00 2001
From: Brian West <brian@freeswitch.org>
Date: Fri, 18 Dec 2009 23:19:53 +0000
Subject: [PATCH] FSCORE-517

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16003 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
 src/include/switch_module_interfaces.h |  1 +
 src/switch_core_codec.c                | 17 +++++++++++++++--
 src/switch_ivr_play_say.c              | 12 ++++++------
 3 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/src/include/switch_module_interfaces.h b/src/include/switch_module_interfaces.h
index 5b2d2baab4..aa3cde37e6 100644
--- a/src/include/switch_module_interfaces.h
+++ b/src/include/switch_module_interfaces.h
@@ -583,6 +583,7 @@ struct switch_codec {
 	void *private_info;
 	switch_payload_t agreed_pt;
 	switch_mutex_t *mutex;
+	struct switch_codec *next;
 };
 
 /*! \brief A table of settings and callbacks that define a paticular implementation of a codec */
diff --git a/src/switch_core_codec.c b/src/switch_core_codec.c
index 5efac5b817..b17dcd28fa 100644
--- a/src/switch_core_codec.c
+++ b/src/switch_core_codec.c
@@ -97,7 +97,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
 	switch_channel_t *channel = switch_core_session_get_channel(session);
 	char tmp[30];
 	switch_status_t status = SWITCH_STATUS_SUCCESS;
-
+	
 	switch_mutex_lock(session->codec_read_mutex);
 
 	if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) {
@@ -109,6 +109,9 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
 			session->read_codec = session->real_read_codec = codec;
 			session->read_impl = *codec->implementation;
 		} else {
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Push codec %s:%d\n",
+							  switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode);
+			codec->next = session->read_codec;
 			session->read_codec = codec;
 			session->read_impl = *codec->implementation;
 		}
@@ -116,7 +119,17 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
 		if (session->read_codec == session->real_read_codec) {
 			goto end;
 		}
-		if (session->real_read_codec) {
+		
+		if (session->read_codec->next) {
+			switch_codec_t *old = session->read_codec;
+			session->read_codec = session->read_codec->next;
+			session->read_impl = *session->read_codec->implementation;
+			old->next = NULL;
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Restore previous codec %s:%d.\n",
+							  switch_channel_get_name(session->channel), 
+							  session->read_codec->implementation->iananame, session->read_codec->implementation->ianacode);
+			
+		} else if (session->real_read_codec) {
 			session->read_codec = session->real_read_codec;
 			session->read_impl = *session->real_read_codec->implementation;
 			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Restore original codec.\n");
diff --git a/src/switch_ivr_play_say.c b/src/switch_ivr_play_say.c
index c08fe92a32..a22821a95a 100644
--- a/src/switch_ivr_play_say.c
+++ b/src/switch_ivr_play_say.c
@@ -1081,7 +1081,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
 								  read_impl.number_of_channels,
 								  read_impl.actual_samples_per_second,
 								  SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT, NULL) != SWITCH_STATUS_SUCCESS) {
-			switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
+			switch_core_session_reset(session, SWITCH_TRUE, SWITCH_FALSE);
 			status = SWITCH_STATUS_NOTFOUND;
 			continue;
 		}
@@ -1159,7 +1159,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
 					switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG,
 									  "Raw Codec Activation Failed %s@%uhz %u channels %dms\n", codec_name, fh->samplerate, fh->channels, interval);
 					switch_core_file_close(fh);
-					switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
+					switch_core_session_reset(session, SWITCH_TRUE, SWITCH_FALSE);
 					status = SWITCH_STATUS_GENERR;
 					continue;
 				}
@@ -1179,7 +1179,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
 				switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Setup timer failed!\n");
 				switch_core_codec_destroy(&codec);
 				switch_core_file_close(fh);
-				switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
+				switch_core_session_reset(session, SWITCH_TRUE, SWITCH_FALSE);
 				status = SWITCH_STATUS_GENERR;
 				continue;
 			}
@@ -1476,7 +1476,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
 
 	switch_safe_free(abuf);
 
-	switch_core_session_reset(session, SWITCH_FALSE, SWITCH_TRUE);
+	switch_core_session_reset(session, SWITCH_FALSE, SWITCH_FALSE);
 	return status;
 }
 
@@ -1513,7 +1513,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_wait_for_silence(switch_core_session_
 								  read_impl.number_of_channels,
 								  read_impl.actual_samples_per_second,
 								  SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT, NULL) != SWITCH_STATUS_SUCCESS) {
-			switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
+			switch_core_session_reset(session, SWITCH_TRUE, SWITCH_FALSE);
 			return SWITCH_STATUS_NOTFOUND;
 		}
 		switch_zmalloc(abuf, SWITCH_RECOMMENDED_BUFFER_SIZE);
@@ -2100,7 +2100,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_speak_text(switch_core_session_t *ses
 
 	timer_name = switch_channel_get_variable(channel, "timer_name");
 
-	switch_core_session_reset(session, SWITCH_FALSE, SWITCH_TRUE);
+	switch_core_session_reset(session, SWITCH_FALSE, SWITCH_FALSE);
 	read_codec = switch_core_session_get_read_codec(session);
 
 	rate = read_impl.actual_samples_per_second;