Added mod_bert module

build/modules.conf.in

@@ -1,5 +1,6 @@
 #applications/mod_abstraction
 #applications/mod_avmd
+#applications/mod_bert
 #applications/mod_blacklist
 #applications/mod_callcenter
 #applications/mod_cidlookup

configure.ac

@@ -1455,6 +1455,7 @@ AC_CONFIG_FILES([Makefile
 		src/mod/Makefile
 		src/mod/applications/mod_abstraction/Makefile
 		src/mod/applications/mod_avmd/Makefile
+		src/mod/applications/mod_bert/Makefile
 		src/mod/applications/mod_blacklist/Makefile
 		src/mod/applications/mod_callcenter/Makefile
 		src/mod/applications/mod_cidlookup/Makefile

src/mod/applications/mod_bert/Makefile.am

@@ -0,0 +1,8 @@
+include $(top_srcdir)/build/modmake.rulesam
+MODNAME=mod_bert
+
+mod_LTLIBRARIES = mod_bert.la
+mod_bert_la_SOURCES  = mod_bert.c
+mod_bert_la_CFLAGS   = $(AM_CFLAGS)
+mod_bert_la_LIBADD   = $(switch_builddir)/libfreeswitch.la
+mod_bert_la_LDFLAGS  = -avoid-version -module -no-undefined -shared

src/mod/applications/mod_bert/mod_bert.c

@@ -0,0 +1,143 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005-2011, Anthony Minessale II <anthm@freeswitch.org>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Oreka Recording Module
+ *
+ * The Initial Developer of the Original Code is
+ * Moises Silva <moises.silva@gmail.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Moises Silva <moises.silva@gmail.com>
+ *
+ * mod_g711_bert -- Naive BERT tester
+ *
+ */
+
+#include <switch.h>
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_bert_load);
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_bert_shutdown);
+SWITCH_MODULE_DEFINITION(mod_bert, mod_bert_load, mod_bert_shutdown, NULL);
+
+SWITCH_STANDARD_APP(g711_bert_function)
+{
+	switch_status_t status;
+	switch_frame_t *read_frame = NULL, write_frame = { 0 };
+	switch_codec_implementation_t read_impl = { 0 };
+	switch_channel_t *channel = NULL;
+	int i = 0;
+	uint32_t interval = 0;
+	uint32_t ts = 0;
+	struct {
+		uint64_t sync;
+		uint32_t bytes_since_sync;
+		uint32_t min_sync_samples;
+		uint32_t max_sync_err;
+		uint32_t sync_err;
+		int16_t tx_sample;
+		int16_t test_data;
+	} bert;
+
+	memset(&bert, 0, sizeof(bert));
+	channel = switch_core_session_get_channel(session);
+
+	switch_channel_answer(channel);
+
+	switch_core_session_get_read_impl(session, &read_impl);
+
+	interval = read_impl.microseconds_per_packet / 1000;
+
+	write_frame.codec = switch_core_session_get_read_codec(session);
+	write_frame.data = switch_core_session_alloc(session, SWITCH_RECOMMENDED_BUFFER_SIZE);
+	write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
+
+	bert.min_sync_samples = (read_impl.samples_per_packet * 40);
+	bert.max_sync_err = (read_impl.samples_per_packet * 20);
+	while (switch_channel_ready(channel)) {
+		int16_t *read_samples = NULL;
+		int16_t *write_samples = NULL;
+		status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
+		if (!SWITCH_READ_ACCEPTABLE(status)) {
+			break;
+		}
+		/* BERT Sync */
+		read_samples = read_frame->data;
+		write_samples = write_frame.data;
+		for (i = 0; i < (read_frame->datalen / 2); i++) {
+			if (bert.sync < bert.min_sync_samples) {
+				if (bert.test_data == read_samples[i]) {
+					bert.sync++;
+				}
+			} else {
+				if (bert.sync == bert.min_sync_samples) {
+					switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "G.711 synced (%lu)\n", bert.sync);
+					bert.bytes_since_sync = 0;
+					bert.sync_err = 0;
+				}
+				bert.bytes_since_sync++;
+				if (bert.test_data != read_samples[i]) {
+					bert.sync_err++;
+					if (bert.sync_err >= bert.max_sync_err) {
+						bert.sync = 0;
+						switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "G.711 sync lost (%u)\n", bert.bytes_since_sync);
+					}
+				} else {
+					bert.sync++;
+				}
+			}
+			bert.test_data = (read_samples[i] + 1);
+
+			write_samples[i] = bert.tx_sample++;
+		}
+
+		write_frame.datalen = read_frame->datalen;
+		write_frame.samples = i;
+		write_frame.timestamp = ts;
+		status = switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
+		if (!SWITCH_READ_ACCEPTABLE(status)) {
+			break;
+		}
+		ts += read_impl.samples_per_packet;
+	}
+}
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_bert_load)
+{
+	switch_application_interface_t *app_interface = NULL;
+
+	*module_interface = switch_loadable_module_create_module_interface(pool, modname);
+
+	SWITCH_ADD_APP(app_interface, "bert_test", "Start BERT Test", "Start BERT Test", g711_bert_function, "", SAF_NONE); 
+	return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_bert_shutdown)
+{
+	return SWITCH_STATUS_UNLOAD;
+}
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:nil
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4:
+ */