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<div id="msg">
<div id="header">FreeSWITCH Subversion</div>
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://fisheye.freeswitch.org/changelog/FreeSWITCH?cs=14960">14960</a></dd>
<dt>Author</dt> <dd>anthm</dd>
<dt>Date</dt> <dd>2009-09-23 17:39:00 -0500 (Wed, 23 Sep 2009)</dd>
</dl>
<h3>Log Message</h3>
<pre>add preprocess framework for agc ec etc, ALPHA, needs work</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#freeswitchtrunksrcincludeswitch_coreh">freeswitch/trunk/src/include/switch_core.h</a></li>
<li><a href="#freeswitchtrunksrcmodapplicationsmod_commandsmod_commandsc">freeswitch/trunk/src/mod/applications/mod_commands/mod_commands.c</a></li>
<li><a href="#freeswitchtrunksrcmodapplicationsmod_dptoolsmod_dptoolsc">freeswitch/trunk/src/mod/applications/mod_dptools/mod_dptools.c</a></li>
<li><a href="#freeswitchtrunksrcswitch_ivr_asyncc">freeswitch/trunk/src/switch_ivr_async.c</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="freeswitchtrunksrcincludeswitch_coreh"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/src/include/switch_core.h (14959 => 14960)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/src/include/switch_core.h 2009-09-23 17:44:41 UTC (rev 14959)
+++ freeswitch/trunk/src/include/switch_core.h 2009-09-23 22:39:00 UTC (rev 14960)
</span><span class="lines">@@ -1900,6 +1900,9 @@
</span><span class="cx"> SWITCH_DECLARE(void) switch_cond_next(void);
</span><span class="cx"> SWITCH_DECLARE(switch_status_t) switch_core_chat_send(const char *name, const char *proto, const char *from, const char *to,
</span><span class="cx"> const char *subject, const char *body, const char *type, const char *hint);
</span><ins>+
+SWITCH_DECLARE(switch_status_t) switch_ivr_preprocess_session(switch_core_session_t *session, const char *cmds);
+
</ins><span class="cx"> ///\}
</span><span class="cx">
</span><span class="cx"> /*!
</span></span></pre></div>
<a id="freeswitchtrunksrcmodapplicationsmod_commandsmod_commandsc"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/src/mod/applications/mod_commands/mod_commands.c (14959 => 14960)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/src/mod/applications/mod_commands/mod_commands.c 2009-09-23 17:44:41 UTC (rev 14959)
+++ freeswitch/trunk/src/mod/applications/mod_commands/mod_commands.c 2009-09-23 22:39:00 UTC (rev 14960)
</span><span class="lines">@@ -1529,6 +1529,29 @@
</span><span class="cx"> return SWITCH_STATUS_SUCCESS;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+#define PREPROCESS_SYNTAX "<>"
+SWITCH_STANDARD_API(preprocess_function)
+{
+ switch_core_session_t *ksession = NULL;
+ char *mycmd = NULL;
+
+ if (switch_strlen_zero(cmd)) {
+ stream->write_function(stream, "-USAGE: %s\n", KILL_SYNTAX);
+ return SWITCH_STATUS_SUCCESS;
+ }
+
+ if (!(ksession = switch_core_session_locate(cmd))) {
+ stream->write_function(stream, "-ERR No Such Channel!\n");
+ } else {
+ switch_ivr_preprocess_session(session, (char *)cmd);
+ switch_core_session_rwunlock(ksession);
+ stream->write_function(stream, "+OK\n");
+ }
+
+ switch_safe_free(mycmd);
+ return SWITCH_STATUS_SUCCESS;
+}
+
</ins><span class="cx"> #define PARK_SYNTAX "<uuid>"
</span><span class="cx"> SWITCH_STANDARD_API(park_function)
</span><span class="cx"> {
</span><span class="lines">@@ -3580,6 +3603,7 @@
</span><span class="cx"> SWITCH_ADD_API(commands_api_interface, "originate", "Originate a Call", originate_function, ORIGINATE_SYNTAX);
</span><span class="cx"> SWITCH_ADD_API(commands_api_interface, "tone_detect", "Start Tone Detection on a channel", tone_detect_session_function, TONE_DETECT_SYNTAX);
</span><span class="cx"> SWITCH_ADD_API(commands_api_interface, "uuid_kill", "Kill Channel", kill_function, KILL_SYNTAX);
</span><ins>+ SWITCH_ADD_API(commands_api_interface, "uuid_preprocess", "Pre-process Channel", preprocess_function, PREPROCESS_SYNTAX);
</ins><span class="cx"> SWITCH_ADD_API(commands_api_interface, "uuid_park", "Park Channel", park_function, PARK_SYNTAX);
</span><span class="cx"> SWITCH_ADD_API(commands_api_interface, "reloadacl", "Reload ACL", reload_acl_function, "[reloadxml]");
</span><span class="cx"> switch_console_set_complete("add reloadacl reloadxml");
</span></span></pre></div>
<a id="freeswitchtrunksrcmodapplicationsmod_dptoolsmod_dptoolsc"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/src/mod/applications/mod_dptools/mod_dptools.c (14959 => 14960)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/src/mod/applications/mod_dptools/mod_dptools.c 2009-09-23 17:44:41 UTC (rev 14959)
+++ freeswitch/trunk/src/mod/applications/mod_dptools/mod_dptools.c 2009-09-23 22:39:00 UTC (rev 14960)
</span><span class="lines">@@ -2022,6 +2022,11 @@
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+SWITCH_STANDARD_APP(preprocess_session_function)
+{
+ switch_ivr_preprocess_session(session, (char *)data);
+}
+
</ins><span class="cx"> SWITCH_STANDARD_APP(record_session_function)
</span><span class="cx"> {
</span><span class="cx"> char *path = NULL;
</span><span class="lines">@@ -2806,6 +2811,7 @@
</span><span class="cx"> SWITCH_ADD_APP(app_interface, "record_session", "Record Session", SESS_REC_DESC, record_session_function, "<path> [+<timeout>]", SAF_NONE);
</span><span class="cx"> SWITCH_ADD_APP(app_interface, "record", "Record File", "Record a file from the channels input", record_function,
</span><span class="cx"> "<path> [<time_limit_secs>] [<silence_thresh>] [<silence_hits>]", SAF_NONE);
</span><ins>+ SWITCH_ADD_APP(app_interface, "preprocess", "pre-process", "pre-process", preprocess_session_function, "", SAF_NONE);
</ins><span class="cx"> SWITCH_ADD_APP(app_interface, "stop_displace_session", "Stop Displace File", "Stop Displacing to a file", stop_displace_session_function, "<path>",
</span><span class="cx"> SAF_NONE);
</span><span class="cx"> SWITCH_ADD_APP(app_interface, "displace_session", "Displace File", DISPLACE_DESC, displace_session_function, "<path> [<flags>] [+time_limit_ms]",
</span></span></pre></div>
<a id="freeswitchtrunksrcswitch_ivr_asyncc"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/src/switch_ivr_async.c (14959 => 14960)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/src/switch_ivr_async.c 2009-09-23 17:44:41 UTC (rev 14959)
+++ freeswitch/trunk/src/switch_ivr_async.c 2009-09-23 22:39:00 UTC (rev 14960)
</span><span class="lines">@@ -32,6 +32,8 @@
</span><span class="cx"> */
</span><span class="cx">
</span><span class="cx"> #include <switch.h>
</span><ins>+#include <speex/speex_preprocess.h>
+#include <speex/speex_echo.h>
</ins><span class="cx">
</span><span class="cx"> #ifdef SWITCH_VIDEO_IN_THREADS
</span><span class="cx"> struct echo_helper {
</span><span class="lines">@@ -1026,6 +1028,295 @@
</span><span class="cx"> return SWITCH_STATUS_SUCCESS;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+typedef struct {
+ SpeexPreprocessState *read_st;
+ SpeexPreprocessState *write_st;
+ SpeexEchoState *read_ec;
+ SpeexEchoState *write_ec;
+ switch_byte_t read_data[2048];
+ switch_byte_t write_data[2048];
+ switch_byte_t read_out[2048];
+ switch_byte_t write_out[2048];
+ switch_mutex_t *read_mutex;
+ switch_mutex_t *write_mutex;
+ int done;
+} pp_cb_t;
+
+static switch_bool_t preprocess_callback(switch_media_bug_t *bug, void *user_data, switch_abc_type_t type)
+{
+ switch_core_session_t *session = switch_core_media_bug_get_session(bug);
+ switch_channel_t *channel = switch_core_session_get_channel(session);
+ pp_cb_t *cb = (pp_cb_t *) user_data;
+ switch_codec_implementation_t read_impl = {0};
+
+ switch_core_session_get_read_impl(session, &read_impl);
+ switch_frame_t *frame = NULL;
+ int y;
+
+ switch (type) {
+ case SWITCH_ABC_TYPE_INIT:
+ {
+ switch_mutex_init(&cb->read_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+ switch_mutex_init(&cb->write_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+ }
+ break;
+ case SWITCH_ABC_TYPE_CLOSE:
+ {
+ if (cb->read_st) {
+ speex_preprocess_state_destroy(cb->read_st);
+ }
+
+ if (cb->write_st) {
+ speex_preprocess_state_destroy(cb->write_st);
+ }
+
+ if (cb->read_ec) {
+ speex_echo_state_destroy(cb->read_ec);
+ }
+
+ if (cb->write_ec) {
+ speex_echo_state_destroy(cb->write_ec);
+ }
+
+ switch_channel_set_private(channel, "_preprocess", NULL);
+ }
+ break;
+ case SWITCH_ABC_TYPE_READ_REPLACE:
+ {
+ if (cb->done) return SWITCH_FALSE;
+ frame = switch_core_media_bug_get_read_replace_frame(bug);
+
+ if (cb->read_st) {
+
+ if (cb->read_ec) {
+ speex_echo_cancellation(cb->read_ec, (int16_t *)frame->data, (int16_t *)cb->write_data, (int16_t *)cb->read_out);
+ memcpy(frame->data, cb->read_out, frame->datalen);
+ }
+
+ y = speex_preprocess_run(cb->read_st, frame->data);
+ }
+
+ if (cb->write_ec) {
+ memcpy(cb->read_data, frame->data, frame->datalen);
+ }
+ }
+ break;
+ case SWITCH_ABC_TYPE_WRITE_REPLACE:
+ {
+ if (cb->done) return SWITCH_FALSE;
+ frame = switch_core_media_bug_get_write_replace_frame(bug);
+
+ if (cb->write_st) {
+
+ if (cb->write_ec) {
+ speex_echo_cancellation(cb->write_ec, (int16_t *)frame->data, (int16_t *)cb->read_data, (int16_t *)cb->write_out);
+ memcpy(frame->data, cb->write_out, frame->datalen);
+ }
+
+ y = speex_preprocess_run(cb->write_st, frame->data);
+ }
+
+ if (cb->read_ec) {
+ memcpy(cb->write_data, frame->data, frame->datalen);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ return SWITCH_TRUE;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_ivr_preprocess_session(switch_core_session_t *session, const char *cmds)
+{
+ switch_channel_t *channel = switch_core_session_get_channel(session);
+ switch_media_bug_t *bug;
+ switch_status_t status;
+ time_t to = 0;
+ switch_media_bug_flag_t flags = 0;
+ switch_codec_implementation_t read_impl = {0};
+ pp_cb_t *cb;
+ int update = 0;
+ int argc;
+ char *mydata = NULL, *argv[5];
+ int i = 0;
+
+ switch_core_session_get_read_impl(session, &read_impl);
+
+ if ((cb = switch_channel_get_private(channel, "_preprocess"))) {
+ update = 1;
+ } else {
+ cb = switch_core_session_alloc(session, sizeof(*cb));
+ }
+
+
+ if (update) {
+ if (!strcasecmp(cmds, "stop")) {
+ cb->done = 1;
+ return SWITCH_STATUS_SUCCESS;
+ }
+ }
+
+ mydata = strdup(cmds);
+ argc = switch_separate_string(mydata, ',', argv, (sizeof(argv) / sizeof(argv[0])));
+
+ for(i = 0; i < argc; i++) {
+ char *var = argv[i];
+ char *val = NULL;
+ char rw;
+ int tr;
+ int err = 1;
+ SpeexPreprocessState *st = NULL;
+ SpeexEchoState *ec;
+ switch_mutex_t *mutex = NULL;
+ int r = 0;
+
+ if (var) {
+ if ((val = strchr(var, '='))) {
+ *val++ = '\0';
+
+ rw = *var++;
+ while(*var == '.' || *var == '_') {
+ var++;
+ }
+
+ if (rw == 'r') {
+ if (!cb->read_st) {
+ cb->read_st = speex_preprocess_state_init(read_impl.samples_per_packet, read_impl.samples_per_second);
+ flags |= SMBF_READ_REPLACE;
+ }
+ st = cb->read_st;
+ ec = cb->read_ec;
+ mutex = cb->read_mutex;
+ } else if (rw == 'w') {
+ if (!cb->write_st) {
+ cb->write_st = speex_preprocess_state_init(read_impl.samples_per_packet, read_impl.samples_per_second);
+ flags |= SMBF_WRITE_REPLACE;
+ }
+ st = cb->write_st;
+ ec = cb->write_ec;
+ mutex = cb->write_mutex;
+ }
+
+ if (mutex) switch_mutex_lock(mutex);
+
+ if (st) {
+ err = 0;
+ tr = switch_true(val);
+ if (!strcasecmp(var, "agc")) {
+ int l = read_impl.samples_per_second;
+ int tmp = atoi(val);
+
+ if (!tr) {
+ l = tmp;
+ }
+
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Setting AGC on %c to %d\n", rw, tr);
+ speex_preprocess_ctl(st, SPEEX_PREPROCESS_SET_AGC, &tr);
+ speex_preprocess_ctl(st, SPEEX_PREPROCESS_SET_AGC_LEVEL, &l);
+
+ } else if (!strcasecmp(var, "noise_supress")) {
+ int db = atoi(val);
+ if (db < 0) {
+ r = speex_preprocess_ctl(st, SPEEX_PREPROCESS_SET_NOISE_SUPPRESS, &db);
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Setting NOISE_SUPRESS on %c to %d [%d]\n", rw, db, r);
+ } else {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Syntax error noise_supress should be in -db\n");
+ }
+ } else if (!strcasecmp(var, "echo_cancel")) {
+ int tail = 1024;
+ int tmp = atoi(val);
+
+ if (!tr && tmp > 0) {
+ tail = tmp;
+ } else if (!tr) {
+ if (ec) {
+ if (rw == 'r') {
+ speex_echo_state_destroy(cb->read_ec);
+ cb->read_ec = NULL;
+ } else {
+ speex_echo_state_destroy(cb->write_ec);
+ cb->write_ec = NULL;
+ }
+ }
+
+ ec = NULL;
+ }
+
+ if (!ec) {
+ if (rw == 'r') {
+ ec = cb->read_ec = speex_echo_state_init(read_impl.samples_per_packet, tail);
+ speex_echo_ctl(ec, SPEEX_ECHO_SET_SAMPLING_RATE, &read_impl.samples_per_second);
+ flags |= SMBF_WRITE_REPLACE;
+ } else {
+ ec = cb->write_ec = speex_echo_state_init(read_impl.samples_per_packet, tail);
+ speex_echo_ctl(ec, SPEEX_ECHO_SET_SAMPLING_RATE, &read_impl.samples_per_second);
+ flags |= SMBF_READ_REPLACE;
+ }
+ speex_preprocess_ctl(st, SPEEX_PREPROCESS_SET_ECHO_STATE, ec);
+ }
+
+
+ } else if (!strcasecmp(var, "echo_supress")) {
+ int db = atoi(val);
+ if (db < 0) {
+ speex_preprocess_ctl(st, SPEEX_PREPROCESS_SET_ECHO_SUPPRESS, &db);
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Setting ECHO_SUPRESS on %c to %d [%d]\n", rw, db, r);
+ } else {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Syntax error echo_supress should be in -db\n");
+ }
+ } else {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "Warning unknown parameter [%s] \n", var);
+ }
+ }
+ }
+
+ if (mutex) switch_mutex_unlock(mutex);
+
+ if (err) {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Syntax error parsing preprossor commands\n");
+ }
+
+ } else {
+ break;
+ }
+ }
+
+
+ switch_safe_free(mydata);
+
+ if (update) {
+ return SWITCH_STATUS_SUCCESS;
+ }
+
+
+ if ((status = switch_core_media_bug_add(session, preprocess_callback, cb, to, flags, &bug)) != SWITCH_STATUS_SUCCESS) {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Error adding media bug.\n");
+ if (cb->read_st) {
+ speex_preprocess_state_destroy(cb->read_st);
+ }
+
+ if (cb->write_st) {
+ speex_preprocess_state_destroy(cb->write_st);
+ }
+
+ if (cb->read_ec) {
+ speex_echo_state_destroy(cb->read_ec);
+ }
+
+ if (cb->write_ec) {
+ speex_echo_state_destroy(cb->write_ec);
+ }
+
+ return status;
+ }
+
+ switch_channel_set_private(channel, "_preprocess", cb);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
</ins><span class="cx"> typedef struct {
</span><span class="cx"> switch_core_session_t *session;
</span><span class="cx"> teletone_dtmf_detect_state_t dtmf_detect;
</span></span></pre>
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