add example application to demonstrate media rewriting capability with media bugs

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5316 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/default_context.xml

@@ -19,6 +19,23 @@
     </condition>
   </extension>
 
+  <extension name="9193">
+    <condition field="destination_number" expression="^9193$">
+      <action application="set" data="bridge_pre_execute_bleg_app=soundtouch"/>
+      <!-- send or recv indicates which direction the dtmf is parsed from 
+	   since this example is send and it's being called on the b leg
+	   the application will intercept the dtmf from being sent to the b leg 
+	   a.k.a. by the dtmf of the A leg.
+	   if it were 'recv' then it would be parsed when the dtmf was 
+	   received *from* the b leg so it could control itself.
+      -->
+      <action application="set" data="bridge_pre_execute_bleg_data=send -4s"/>
+      <action application="bridge" data="sofia/$${domain}/foo"/>
+    </condition>
+  </extension>
+
+
+
   <extension name="9192">
     <condition field="destination_number" expression="^9192$">
       <!-- Maintain Buffer of 128k of audio (default is 64k) -->

src/mod/applications/mod_bridgecall/mod_bridgecall.c

@@ -36,98 +36,8 @@
 
 static const char modname[] = "mod_bridgecall";
 
-static void audio_bridge_function(switch_core_session_t *session, char *data)
-{
-	switch_channel_t *caller_channel;
-	switch_core_session_t *peer_session = NULL;
-	unsigned int timelimit = 60;
-	char *var;
-	uint8_t no_media_bridge = 0;
-	switch_call_cause_t cause = SWITCH_CAUSE_NORMAL_CLEARING;
-	uint8_t do_continue = 0;
-
-	if (switch_strlen_zero(data)) {
-		return;
-	}
-
-	caller_channel = switch_core_session_get_channel(session);
-	assert(caller_channel != NULL);
-
-	if ((var = switch_channel_get_variable(caller_channel, "call_timeout"))) {
-		timelimit = atoi(var);
-	}
-
-	if ((var = switch_channel_get_variable(caller_channel, "continue_on_fail"))) {
-		do_continue = switch_true(var);
-	}
 
-	if (switch_channel_test_flag(caller_channel, CF_BYPASS_MEDIA)
-		|| ((var = switch_channel_get_variable(caller_channel, SWITCH_BYPASS_MEDIA_VARIABLE)) && switch_true(var))) {
-		if (!switch_channel_test_flag(caller_channel, CF_ANSWERED)
-			&& !switch_channel_test_flag(caller_channel, CF_EARLY_MEDIA)) {
-			switch_channel_set_flag(caller_channel, CF_BYPASS_MEDIA);
-		} else {
-			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Channel is already up, delaying point-to-point mode 'till both legs are up.\n");
-			no_media_bridge = 1;
-		}
-	}
 
-	if (switch_ivr_originate(session, &peer_session, &cause, data, timelimit, NULL, NULL, NULL, NULL) != SWITCH_STATUS_SUCCESS) {
-		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Originate Failed.  Cause: %s\n", switch_channel_cause2str(cause));
-		if (!do_continue && cause != SWITCH_CAUSE_NO_ANSWER) {
-			/* All Causes besides NO_ANSWER terminate the originating session unless continue_on_fail is set.
-			   We will pass the fail cause on when we hangup. */
-			switch_channel_hangup(caller_channel, cause);
-		}
-		/* Otherwise.. nobody answered.  Go back to the dialplan instructions in case there was more to do. */
-		return;
-	} else {
-		if (no_media_bridge) {
-			switch_channel_t *peer_channel = switch_core_session_get_channel(peer_session);
-			switch_frame_t *read_frame;
-			/* SIP won't let us redir media until the call has been answered #$^#%& so we will proxy any early media until they do */
-			while (switch_channel_ready(caller_channel) && switch_channel_ready(peer_channel)
-				   && !switch_channel_test_flag(peer_channel, CF_ANSWERED)) {
-				switch_status_t status = switch_core_session_read_frame(peer_session, &read_frame, -1, 0);
-				uint8_t bad = 1;
-
-				if (SWITCH_READ_ACCEPTABLE(status)
-					&& switch_core_session_write_frame(session, read_frame, -1, 0) == SWITCH_STATUS_SUCCESS) {
-					bad = 0;
-				}
-				if (bad) {
-					switch_channel_hangup(caller_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
-					switch_channel_hangup(peer_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
-					goto end;
-				}
-			}
-
-			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Redirecting media to point-to-point mode.\n");
-			switch_ivr_nomedia(switch_core_session_get_uuid(session), SMF_FORCE);
-			switch_ivr_nomedia(switch_core_session_get_uuid(peer_session), SMF_FORCE);
-			switch_ivr_signal_bridge(session, peer_session);
-		} else {
-			if (switch_channel_test_flag(caller_channel, CF_BYPASS_MEDIA)) {
-				switch_ivr_signal_bridge(session, peer_session);
-			} else {
-				switch_ivr_multi_threaded_bridge(session, peer_session, NULL, NULL, NULL);
-			}
-		}
-	end:
-		if (peer_session) {
-			switch_core_session_rwunlock(peer_session);
-		}
-	}
-}
-
-static const switch_application_interface_t bridge_application_interface = {
-	/*.interface_name */ "bridge",
-	/*.application_function */ audio_bridge_function,
-	/* long_desc */ "Bridge the audio between two sessions",
-	/* short_desc */ "Bridge Audio",
-	/* syntax */ "<channel_url>",
-	/* flags */ SAF_SUPPORT_NOMEDIA
-};
 
 static const switch_loadable_module_interface_t mod_bridgecall_module_interface = {
 	/*.module_name = */ modname,

src/mod/applications/mod_soundtouch/Makefile

+
+VERSION=soundtouch-1.3.1
+DIRECTORY=$(switch_srcdir)/libs/$(VERSION)
+LA=$(DIRECTORY)/source/SoundTouch/.libs/libSoundTouch.a
+
+BASE=../../../..
+LOCAL_CFLAGS += -I$(DIRECTORY)/include -DINTEGER_SAMPLES
+LOCAL_LIBADD=$(LA)
+DEFAULT_ARGS=--prefix=$(PREFIX) --disable-shared --with-pic
+
+include /usr/src/freeswitch.trunk/build/modmake.rules
+
+$(DIRECTORY):
+	$(GETLIB) $(VERSION).tar.gz
+	cd $(DIRECTORY) && ./configure $(DEFAULT_ARGS) --enable-integer-samples
+
+$(LA): $(DIRECTORY)
+	cd $(DIRECTORY) && $(MAKE)
+	$(TOUCH_TARGET)