Add portaudio files

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@95 d0543943-73ff-0310-b7d9-9358b9ac24b2
2025-08-13 09:36:46 +00:00 · 2005-12-08 23:10:59 +00:00
parent e85eefe7f2
commit 8fab3d501f
5 changed files with 754 additions and 1 deletions
--- a/src/mod/mod_iaxchan/mod_iaxchan.c
+++ b/src/mod/mod_iaxchan/mod_iaxchan.c
@@ -26,7 +26,7 @@
 * Anthony Minessale II <anthmct@yahoo.com>
 *
 *
- * mod_iaxchan.c -- IAX2 Endpoint Module
+ * mod_portaudio.c -- PortAudio Endpoint Module
 *
 */
 #include <switch.h>
--- a/src/mod/mod_portaudio/mod_portaudio.c
+++ b/src/mod/mod_portaudio/mod_portaudio.c
@@ -0,0 +1,518 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
+ *
+ * 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 / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct@yahoo.com>
+ *
+ *
+ * mod_portaudio.c -- PortAudio Endpoint Module
+ *
+ */
+#include <switch.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include "pablio.h"
+#include <string.h>
+
+static const char modname[] = "mod_portaudio";
+
+static switch_memory_pool *module_pool;
+static int running = 1;
+
+
+typedef enum {
+	TFLAG_IO = (1 << 0),
+	TFLAG_INBOUND = (1 << 1),
+	TFLAG_OUTBOUND = (1 << 2),
+	TFLAG_DTMF = (1 << 3),
+	TFLAG_VOICE = (1 << 4),
+	TFLAG_HANGUP = (1 << 5),
+	TFLAG_LINEAR = (1 << 6)
+} TFLAGS;
+
+typedef enum {
+	GFLAG_MY_CODEC_PREFS = (1 << 0)
+} GFLAGS;
+
+static struct {
+	int debug;
+	int port;
+	char *dialplan;
+	char *soundcard;
+	unsigned int flags;
+} globals;
+
+struct private_object {
+	unsigned int flags;
+	switch_codec read_codec;
+    switch_codec write_codec;
+	struct switch_frame read_frame;
+	unsigned char databuf[1024];
+	switch_core_session *session;
+	switch_caller_profile *caller_profile;	
+	unsigned int codec;
+	unsigned int codecs;
+	switch_mutex_t *mutex;
+	switch_thread_cond_t *cond;
+};
+
+static void set_global_dialplan(char *dialplan)
+{
+	if (globals.dialplan) {
+		free(globals.dialplan);
+		globals.dialplan = NULL;
+	}
+	
+	globals.dialplan = strdup(dialplan);
+}
+
+static void set_global_soundcard(char *soundcard)
+{
+	if (globals.soundcard) {
+		free(globals.soundcard);
+		globals.soundcard = NULL;
+	}
+	
+	globals.soundcard = strdup(soundcard);
+}
+static const switch_endpoint_interface channel_endpoint_interface;
+
+static switch_status channel_on_init(switch_core_session *session);
+static switch_status channel_on_hangup(switch_core_session *session);
+static switch_status channel_on_ring(switch_core_session *session);
+static switch_status channel_on_loopback(switch_core_session *session);
+static switch_status channel_on_transmit(switch_core_session *session);
+static switch_status channel_outgoing_channel(switch_core_session *session, switch_caller_profile *outbound_profile, switch_core_session **new_session);
+static switch_status channel_read_frame(switch_core_session *session, switch_frame **frame, int timeout, switch_io_flag flags);
+static switch_status channel_write_frame(switch_core_session *session, switch_frame *frame, int timeout, switch_io_flag flags);
+static switch_status channel_kill_channel(switch_core_session *session, int sig);
+
+
+/* 
+   State methods they get called when the state changes to the specific state 
+   returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
+   so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
+*/
+static switch_status channel_on_init(switch_core_session *session)
+{
+	switch_channel *channel;
+	struct private_object *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt->read_frame.data = tech_pvt->databuf;
+
+	switch_set_flag(tech_pvt, TFLAG_IO);
+	
+	switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+	switch_thread_cond_create(&tech_pvt->cond, switch_core_session_get_pool(session));	
+	switch_mutex_lock(tech_pvt->mutex);
+
+	/* Move Channel's State Machine to RING */
+	switch_channel_set_state(channel, CS_RING);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_on_ring(switch_core_session *session)
+{
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL RING\n", switch_channel_get_name(channel));
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_on_execute(switch_core_session *session)
+{
+
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+	
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
+
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_on_hangup(switch_core_session *session)
+{
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+	
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_clear_flag(tech_pvt, TFLAG_IO);
+	switch_thread_cond_signal(tech_pvt->cond);
+
+	switch_core_codec_destroy(&tech_pvt->read_codec);
+	switch_core_codec_destroy(&tech_pvt->write_codec);
+	
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_kill_channel(switch_core_session *session, int sig)
+{
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+	
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_channel_hangup(channel);
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL KILL\n", switch_channel_get_name(channel));
+
+	
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_on_loopback(switch_core_session *session)
+{
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "CHANNEL LOOPBACK\n");
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_on_transmit(switch_core_session *session)
+{
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "CHANNEL TRANSMIT\n");
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+/* Make sure when you have 2 sessions in the same scope that you pass the appropriate one to the routines
+   that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
+*/
+static switch_status channel_outgoing_channel(switch_core_session *session, switch_caller_profile *outbound_profile, switch_core_session **new_session) 
+{
+	if ((*new_session = switch_core_session_request(&channel_endpoint_interface, NULL))) {
+		struct private_object *tech_pvt;
+		switch_channel *channel, *orig_channel;
+		switch_caller_profile *caller_profile, *originator_caller_profile = NULL;
+		unsigned int req = 0, cap = 0;
+
+		if ((tech_pvt = (struct private_object *) switch_core_session_alloc(*new_session, sizeof(struct private_object)))) {
+			memset(tech_pvt, 0, sizeof(*tech_pvt));
+			channel = switch_core_session_get_channel(*new_session);
+			switch_core_session_set_private(*new_session, tech_pvt);
+			tech_pvt->session = *new_session;
+		} else {
+			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Hey where is my memory pool?\n");
+			switch_core_session_destroy(new_session);
+			return SWITCH_STATUS_GENERR;
+		}
+
+		if (outbound_profile) {
+			char name[128];
+			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
+			switch_channel_set_caller_profile(channel, caller_profile);
+			tech_pvt->caller_profile = caller_profile;
+			snprintf(name, sizeof(name), "PortAudio/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
+			switch_channel_set_name(channel, name);
+		} else {
+			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
+			switch_core_session_destroy(new_session);
+			return SWITCH_STATUS_GENERR;
+		}
+
+		//XXX outbound shit 
+
+		/* (session == NULL) means it was originated from the core not from another channel */
+		if (session && (orig_channel = switch_core_session_get_channel(session))) {
+			switch_caller_profile *cloned_profile;
+
+			if ((originator_caller_profile = switch_channel_get_caller_profile(orig_channel))) {
+				cloned_profile = switch_caller_profile_clone(*new_session, originator_caller_profile);
+				switch_channel_set_originator_caller_profile(channel, cloned_profile);
+			}
+		}
+		
+		switch_channel_set_flag(channel, CF_OUTBOUND);
+		switch_set_flag(tech_pvt, TFLAG_OUTBOUND);
+		switch_channel_set_state(channel, CS_INIT);
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	return SWITCH_STATUS_GENERR;
+
+}
+
+static switch_status channel_waitfor_read(switch_core_session *session, int ms)
+{
+	struct private_object *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_waitfor_write(switch_core_session *session, int ms)
+{
+	struct private_object *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status channel_send_dtmf(switch_core_session *session, char *dtmf)
+{
+	struct private_object *tech_pvt = NULL;
+	char *digit;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+		for(digit = dtmf; *digit; digit++) {
+			//XXX Do something...
+		}
+
+    return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status channel_read_frame(switch_core_session *session, switch_frame **frame, int timeout, switch_io_flag flags) 
+{
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	for(;;) {
+		if (switch_test_flag(tech_pvt, TFLAG_IO)) {
+			switch_thread_cond_wait(tech_pvt->cond, tech_pvt->mutex);
+			if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
+				return SWITCH_STATUS_FALSE;			
+			}
+			while (switch_test_flag(tech_pvt, TFLAG_IO) && !switch_test_flag(tech_pvt, TFLAG_VOICE)) {
+				switch_yield(1000);
+			}
+	
+			if (switch_test_flag(tech_pvt, TFLAG_IO)) {
+				switch_clear_flag(tech_pvt, TFLAG_VOICE);
+				if(!tech_pvt->read_frame.datalen) {
+					continue;
+				}
+						
+				*frame = &tech_pvt->read_frame;
+				return SWITCH_STATUS_SUCCESS;
+			}
+		}
+		break;
+	}
+	return SWITCH_STATUS_FALSE;
+}
+
+static switch_status channel_write_frame(switch_core_session *session, switch_frame *frame, int timeout, switch_io_flag flags)
+{
+	switch_channel *channel = NULL;
+	struct private_object *tech_pvt = NULL;
+	//switch_frame *pframe;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	if(!switch_test_flag(tech_pvt, TFLAG_IO)) {
+		return SWITCH_STATUS_FALSE;
+	}
+/*
+	if (switch_test_flag(tech_pvt, TFLAG_LINEAR)) {
+		switch_swap_linear(frame->data, (int)frame->datalen / 2);
+	}
+*/
+
+	//XXX send voice
+
+	return SWITCH_STATUS_SUCCESS;
+	
+}
+
+static switch_status channel_answer_channel(switch_core_session *session)
+{
+	struct private_object *tech_pvt;
+	switch_channel *channel = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static const switch_event_handler_table channel_event_handlers = {
+	/*.on_init*/			channel_on_init,
+	/*.on_ring*/			channel_on_ring,
+	/*.on_execute*/			channel_on_execute,
+	/*.on_hangup*/			channel_on_hangup,
+	/*.on_loopback*/		channel_on_loopback,
+	/*.on_transmit*/		channel_on_transmit
+};
+
+static const switch_io_routines channel_io_routines = {
+	/*.outgoing_channel*/	channel_outgoing_channel,
+	/*.answer_channel*/		channel_answer_channel,
+	/*.read_frame*/			channel_read_frame,
+	/*.write_frame*/		channel_write_frame,
+	/*.kill_channel*/		channel_kill_channel,
+	/*.waitfor_read*/		channel_waitfor_read,
+	/*.waitfor_write*/		channel_waitfor_write,
+	/*.send_dtmf*/			channel_send_dtmf
+};
+
+static const switch_endpoint_interface channel_endpoint_interface = {
+	/*.interface_name*/		"portaudio",
+	/*.io_routines*/		&channel_io_routines,
+	/*.event_handlers*/		&channel_event_handlers,
+	/*.private*/			NULL,
+	/*.next*/				NULL
+};
+
+static const switch_loadable_module_interface channel_module_interface = {
+	/*.module_name*/			modname,
+	/*.endpoint_interface*/		&channel_endpoint_interface,
+	/*.timer_interface*/		NULL,
+	/*.dialplan_interface*/		NULL,
+	/*.codec_interface*/		NULL,
+	/*.application_interface*/	NULL
+};
+
+
+SWITCH_MOD_DECLARE(switch_status) switch_module_load(const switch_loadable_module_interface **interface, char *filename) {
+
+	if (switch_core_new_memory_pool(&module_pool) != SWITCH_STATUS_SUCCESS) {
+		switch_console_printf(SWITCH_CHANNEL_CONSOLE, "OH OH no pool\n");
+		return SWITCH_STATUS_TERM;
+	}
+
+	/* connect my internal structure to the blank pointer passed to me */
+	*interface = &channel_module_interface;
+
+	/* indicate that the module should continue to be loaded */
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+static switch_status load_config(void)
+{
+	switch_config cfg;
+	char *var, *val;
+	char *cf = "portaudio.conf";
+	
+	memset(&globals, 0, sizeof(globals));
+	
+	if (!switch_config_open_file(&cfg, cf)) {
+		switch_console_printf(SWITCH_CHANNEL_CONSOLE, "open of %s failed\n", cf);
+		return SWITCH_STATUS_TERM;
+	}
+	
+	while (switch_config_next_pair(&cfg, &var, &val)) {
+		if (!strcasecmp(cfg.category, "settings")) {
+			if (!strcmp(var, "debug")) {
+				globals.debug = atoi(val);
+			} else if (!strcmp(var, "dialplan")) {
+				set_global_dialplan(val);
+			} else if (!strcmp(var, "soundcard")) {
+				set_global_soundcard(val);
+			}
+		}
+	}
+
+	if (!globals.dialplan) {
+		set_global_dialplan("default");
+	}
+
+	switch_config_close_file(&cfg);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+/*
+SWITCH_MOD_DECLARE(switch_status) switch_module_runtime(void)
+{
+	int res;
+	int netfd;
+	int refresh;
+	struct private_object *tech_pvt = NULL;
+	
+	load_config();
+
+	running = 0;
+
+	return SWITCH_STATUS_TERM;
+}
+
+
+SWITCH_MOD_DECLARE(switch_status) switch_module_shutdown(void)
+{
+	int x = 0;
+
+	running = -1;
+
+	while (running) {
+		if (x++ > 1000) {
+			break;
+		}
+		switch_yield(20000);
+	}
+	return SWITCH_STATUS_SUCCESS;
+}
+
+*/