forked from Mirrors/freeswitch
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
This commit is contained in:
Anthony Minessale
parent
a552ebdb9d
commit
90a5504dba
@ -19,6 +19,23 @@
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</condition>
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</condition>
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</extension>
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</extension>
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<extension name="9193">
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<condition field="destination_number" expression="^9193$">
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<action application="set" data="bridge_pre_execute_bleg_app=soundtouch"/>
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<!-- send or recv indicates which direction the dtmf is parsed from
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since this example is send and it's being called on the b leg
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the application will intercept the dtmf from being sent to the b leg
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a.k.a. by the dtmf of the A leg.
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if it were 'recv' then it would be parsed when the dtmf was
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received *from* the b leg so it could control itself.
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-->
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<action application="set" data="bridge_pre_execute_bleg_data=send -4s"/>
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<action application="bridge" data="sofia/$${domain}/foo"/>
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</condition>
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</extension>
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<extension name="9192">
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<extension name="9192">
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<condition field="destination_number" expression="^9192$">
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<condition field="destination_number" expression="^9192$">
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<!-- Maintain Buffer of 128k of audio (default is 64k) -->
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<!-- Maintain Buffer of 128k of audio (default is 64k) -->
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@ -36,98 +36,8 @@
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static const char modname[] = "mod_bridgecall";
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static const char modname[] = "mod_bridgecall";
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static void audio_bridge_function(switch_core_session_t *session, char *data)
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{
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switch_channel_t *caller_channel;
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switch_core_session_t *peer_session = NULL;
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unsigned int timelimit = 60;
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char *var;
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uint8_t no_media_bridge = 0;
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switch_call_cause_t cause = SWITCH_CAUSE_NORMAL_CLEARING;
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uint8_t do_continue = 0;
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if (switch_strlen_zero(data)) {
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return;
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}
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caller_channel = switch_core_session_get_channel(session);
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assert(caller_channel != NULL);
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if ((var = switch_channel_get_variable(caller_channel, "call_timeout"))) {
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timelimit = atoi(var);
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}
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if ((var = switch_channel_get_variable(caller_channel, "continue_on_fail"))) {
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do_continue = switch_true(var);
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}
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if (switch_channel_test_flag(caller_channel, CF_BYPASS_MEDIA)
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|| ((var = switch_channel_get_variable(caller_channel, SWITCH_BYPASS_MEDIA_VARIABLE)) && switch_true(var))) {
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if (!switch_channel_test_flag(caller_channel, CF_ANSWERED)
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&& !switch_channel_test_flag(caller_channel, CF_EARLY_MEDIA)) {
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switch_channel_set_flag(caller_channel, CF_BYPASS_MEDIA);
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Channel is already up, delaying point-to-point mode 'till both legs are up.\n");
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no_media_bridge = 1;
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}
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}
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if (switch_ivr_originate(session, &peer_session, &cause, data, timelimit, NULL, NULL, NULL, NULL) != SWITCH_STATUS_SUCCESS) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Originate Failed. Cause: %s\n", switch_channel_cause2str(cause));
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if (!do_continue && cause != SWITCH_CAUSE_NO_ANSWER) {
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/* All Causes besides NO_ANSWER terminate the originating session unless continue_on_fail is set.
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We will pass the fail cause on when we hangup. */
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switch_channel_hangup(caller_channel, cause);
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}
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/* Otherwise.. nobody answered. Go back to the dialplan instructions in case there was more to do. */
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return;
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} else {
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if (no_media_bridge) {
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switch_channel_t *peer_channel = switch_core_session_get_channel(peer_session);
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switch_frame_t *read_frame;
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/* SIP won't let us redir media until the call has been answered #$^#%& so we will proxy any early media until they do */
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while (switch_channel_ready(caller_channel) && switch_channel_ready(peer_channel)
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&& !switch_channel_test_flag(peer_channel, CF_ANSWERED)) {
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switch_status_t status = switch_core_session_read_frame(peer_session, &read_frame, -1, 0);
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uint8_t bad = 1;
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if (SWITCH_READ_ACCEPTABLE(status)
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&& switch_core_session_write_frame(session, read_frame, -1, 0) == SWITCH_STATUS_SUCCESS) {
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bad = 0;
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}
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if (bad) {
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switch_channel_hangup(caller_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
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switch_channel_hangup(peer_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
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goto end;
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}
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}
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Redirecting media to point-to-point mode.\n");
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switch_ivr_nomedia(switch_core_session_get_uuid(session), SMF_FORCE);
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switch_ivr_nomedia(switch_core_session_get_uuid(peer_session), SMF_FORCE);
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switch_ivr_signal_bridge(session, peer_session);
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} else {
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if (switch_channel_test_flag(caller_channel, CF_BYPASS_MEDIA)) {
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switch_ivr_signal_bridge(session, peer_session);
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} else {
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switch_ivr_multi_threaded_bridge(session, peer_session, NULL, NULL, NULL);
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}
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}
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end:
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if (peer_session) {
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switch_core_session_rwunlock(peer_session);
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}
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}
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}
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static const switch_application_interface_t bridge_application_interface = {
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/*.interface_name */ "bridge",
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/*.application_function */ audio_bridge_function,
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/* long_desc */ "Bridge the audio between two sessions",
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/* short_desc */ "Bridge Audio",
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/* syntax */ "<channel_url>",
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/* flags */ SAF_SUPPORT_NOMEDIA
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};
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static const switch_loadable_module_interface_t mod_bridgecall_module_interface = {
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static const switch_loadable_module_interface_t mod_bridgecall_module_interface = {
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/*.module_name = */ modname,
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/*.module_name = */ modname,
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19
src/mod/applications/mod_soundtouch/Makefile
Normal file
19
src/mod/applications/mod_soundtouch/Makefile
Normal file
@ -0,0 +1,19 @@
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VERSION=soundtouch-1.3.1
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DIRECTORY=$(switch_srcdir)/libs/$(VERSION)
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LA=$(DIRECTORY)/source/SoundTouch/.libs/libSoundTouch.a
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BASE=../../../..
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LOCAL_CFLAGS += -I$(DIRECTORY)/include -DINTEGER_SAMPLES
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LOCAL_LIBADD=$(LA)
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DEFAULT_ARGS=--prefix=$(PREFIX) --disable-shared --with-pic
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include /usr/src/freeswitch.trunk/build/modmake.rules
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$(DIRECTORY):
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$(GETLIB) $(VERSION).tar.gz
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cd $(DIRECTORY) && ./configure $(DEFAULT_ARGS) --enable-integer-samples
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$(LA): $(DIRECTORY)
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cd $(DIRECTORY) && $(MAKE)
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$(TOUCH_TARGET)
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340
src/mod/applications/mod_soundtouch/mod_soundtouch.cpp
Normal file
340
src/mod/applications/mod_soundtouch/mod_soundtouch.cpp
Normal file
@ -0,0 +1,340 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthmct@yahoo.com>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthmct@yahoo.com>
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*
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* mod_soundtouch.c -- Example of writeable media bugs
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*
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*/
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#include <stdexcept>
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#include <stdio.h>
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#include <SoundTouch.h>
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using namespace soundtouch;
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using namespace std;
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#include <switch.h>
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#define STSTART 1024 * 2
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#define STBLOCK 1024
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static const char modname[] = "mod_soundtouch";
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struct soundtouch_helper {
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SoundTouch *st;
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switch_core_session_t *session;
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int send;
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float pitch;
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float octaves;
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float semi;
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float rate;
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float tempo;
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int literal;
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};
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static switch_status_t on_dtmf(switch_core_session_t *session, const char *dtmf)
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{
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switch_media_bug_t *bug;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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if ((bug = (switch_media_bug_t *) switch_channel_get_private(channel, "_soundtouch_"))) {
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struct soundtouch_helper *sth = (struct soundtouch_helper *) switch_core_media_bug_get_user_data(bug);
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if (sth) {
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const char *p;
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if (sth->literal) {
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sth->literal = 0;
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return SWITCH_STATUS_SUCCESS;
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}
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for (p = dtmf; p && *p; p++) {
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if (sth->literal) {
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sth->literal = 0;
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return SWITCH_STATUS_SUCCESS;
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}
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switch(*p) {
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case '*':
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sth->literal++;
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break;
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case '3':
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sth->semi += .5;
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sth->st->setPitchSemiTones(sth->semi);
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sth->st->flush();
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break;
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case '2':
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sth->semi = 0;
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sth->st->setPitchSemiTones(sth->semi);
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sth->st->flush();
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break;
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case '1':
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sth->semi -= .5;
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sth->st->setPitchSemiTones(sth->semi);
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sth->st->flush();
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break;
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case '6':
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sth->pitch += .2;
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sth->st->setPitch(sth->pitch);
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sth->st->flush();
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break;
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case '5':
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sth->pitch = 1;
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sth->st->setPitch(sth->pitch);
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sth->st->flush();
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break;
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case '4':
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sth->pitch -= .2;
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if (sth->pitch <= 0) {
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sth->pitch = .2;
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}
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sth->st->setPitch(sth->pitch);
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sth->st->flush();
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break;
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case '9':
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sth->octaves += .2;
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sth->st->setPitchOctaves(sth->octaves);
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sth->st->flush();
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break;
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case '8':
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sth->octaves = 0;
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sth->st->setPitchOctaves(sth->octaves);
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sth->st->flush();
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break;
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case '7':
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sth->octaves -= .2;
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sth->st->setPitchOctaves(sth->octaves);
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sth->st->flush();
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break;
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case '0':
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sth->octaves = 0;
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sth->st->setPitchOctaves(sth->octaves);
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sth->pitch = 1;
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sth->st->setPitch(sth->pitch);
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sth->semi = 0;
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sth->st->setPitchSemiTones(sth->semi);
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sth->st->flush();
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}
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}
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}
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return SWITCH_STATUS_FALSE;
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}
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_bool_t soundtouch_callback(switch_media_bug_t *bug, void *user_data, switch_abc_type_t type)
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{
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struct soundtouch_helper *sth = (struct soundtouch_helper *) user_data;
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switch (type) {
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case SWITCH_ABC_TYPE_INIT:
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{
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switch_codec_t *read_codec = switch_core_session_get_read_codec(sth->session);
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sth->st = new SoundTouch();
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sth->st->setSampleRate(read_codec->implementation->samples_per_second);
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sth->st->setChannels(read_codec->implementation->number_of_channels);
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sth->st->setSetting(SETTING_USE_QUICKSEEK, 1);
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sth->st->setSetting(SETTING_USE_AA_FILTER, 1);
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if (sth->semi) {
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sth->st->setPitchSemiTones(sth->semi);
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}
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if (sth->pitch) {
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sth->st->setPitch(sth->pitch);
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}
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if (sth->octaves) {
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sth->st->setPitchOctaves(sth->octaves);
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}
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if (sth->rate) {
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sth->st->setRate(sth->rate);
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}
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if (sth->tempo) {
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sth->st->setRate(sth->tempo);
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}
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if (sth->send) {
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switch_core_event_hook_add_send_dtmf(sth->session, on_dtmf);
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} else {
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switch_core_event_hook_add_recv_dtmf(sth->session, on_dtmf);
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}
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}
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break;
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case SWITCH_ABC_TYPE_CLOSE:
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{
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delete sth->st;
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if (sth->send) {
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switch_core_event_hook_remove_send_dtmf(sth->session, on_dtmf);
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} else {
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switch_core_event_hook_remove_recv_dtmf(sth->session, on_dtmf);
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}
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}
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break;
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case SWITCH_ABC_TYPE_READ:
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case SWITCH_ABC_TYPE_WRITE:
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break;
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case SWITCH_ABC_TYPE_WRITE_REPLACE:
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{
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switch_frame_t *frame;
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assert(sth != NULL);
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assert(sth->st != NULL);
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frame = switch_core_media_bug_get_replace_frame(bug);
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sth->st->putSamples((SAMPLETYPE *)frame->data, frame->samples);
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||||||
|
if (sth->st->numSamples() >= frame->samples * 2) {
|
||||||
|
frame->samples = sth->st->receiveSamples((SAMPLETYPE *)frame->data, frame->samples);
|
||||||
|
frame->datalen = frame->samples * 2;
|
||||||
|
} else {
|
||||||
|
memset(frame->data, 0, frame->datalen);
|
||||||
|
}
|
||||||
|
|
||||||
|
switch_core_media_bug_set_replace_frame(bug, frame);
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
return SWITCH_TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void soundtouch_start_function(switch_core_session_t *session, char *data)
|
||||||
|
{
|
||||||
|
switch_media_bug_t *bug;
|
||||||
|
switch_status_t status;
|
||||||
|
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||||||
|
struct soundtouch_helper *sth;
|
||||||
|
char *argv[6];
|
||||||
|
int argc;
|
||||||
|
char *lbuf = NULL;
|
||||||
|
int x;
|
||||||
|
|
||||||
|
if (switch_channel_get_private(channel, "_soundtouch_")) {
|
||||||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Cannot run 2 at once on the same channel!\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
sth = (struct soundtouch_helper *) switch_core_session_alloc(session, sizeof(*sth));
|
||||||
|
assert(sth != NULL);
|
||||||
|
|
||||||
|
|
||||||
|
if (data && (lbuf = switch_core_session_strdup(session, data))
|
||||||
|
&& (argc = switch_separate_string(lbuf, ' ', argv, (sizeof(argv) / sizeof(argv[0]))))) {
|
||||||
|
if (!strcasecmp(argv[0], "send") && argc >= 1) {
|
||||||
|
sth->send = 1;
|
||||||
|
} else {
|
||||||
|
sth->send = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
for(x = 1; x < argc; x++) {
|
||||||
|
if (strchr(argv[x], 'p')) {
|
||||||
|
if ((sth->pitch = atof(argv[x]) < 0)) {
|
||||||
|
sth->pitch = 0;
|
||||||
|
}
|
||||||
|
} else if (strchr(argv[x], 'r')) {
|
||||||
|
sth->rate = atof(argv[x]);
|
||||||
|
} else if (strchr(argv[x], 'o')) {
|
||||||
|
sth->octaves = atof(argv[x]);
|
||||||
|
} else if (strchr(argv[x], 's')) {
|
||||||
|
sth->semi = atof(argv[x]);
|
||||||
|
} else if (strchr(argv[x], 't')) {
|
||||||
|
if ((sth->tempo = atof(argv[x]) < 0)) {
|
||||||
|
sth->tempo = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
sth->session = session;
|
||||||
|
|
||||||
|
if ((status = switch_core_media_bug_add(session, soundtouch_callback, sth, 0, SMBF_WRITE_REPLACE, &bug)) != SWITCH_STATUS_SUCCESS) {
|
||||||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failure!\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch_channel_set_private(channel, "_soundtouch_", bug);
|
||||||
|
|
||||||
|
}
|
||||||
|
static const switch_application_interface_t soundtouch_application_interface = {
|
||||||
|
/*.interface_name */ "soundtouch",
|
||||||
|
/*.application_function */ soundtouch_start_function,
|
||||||
|
/* long_desc */ "Alter the audio stream",
|
||||||
|
/* short_desc */ "Alter the audio stream",
|
||||||
|
/* syntax */ "[send|recv] [-]<X>s [.]<X>p",
|
||||||
|
/* flags */ SAF_NONE,
|
||||||
|
/* next*/
|
||||||
|
|
||||||
|
};
|
||||||
|
|
||||||
|
static switch_loadable_module_interface_t soundtouch_module_interface = {
|
||||||
|
/*.module_name */ modname,
|
||||||
|
/*.endpoint_interface */ NULL,
|
||||||
|
/*.timer_interface */ NULL,
|
||||||
|
/*.dialplan_interface */ NULL,
|
||||||
|
/*.codec_interface */ NULL,
|
||||||
|
/*.application_interface */ &soundtouch_application_interface,
|
||||||
|
/*.api_interface */ NULL,
|
||||||
|
/*.file_interface */ NULL,
|
||||||
|
/*.speech_interface */ NULL,
|
||||||
|
/*.directory_interface */ NULL
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
SWITCH_MOD_DECLARE(switch_status_t) switch_module_load(const switch_loadable_module_interface_t **module_interface, char *filename)
|
||||||
|
{
|
||||||
|
/* connect my internal structure to the blank pointer passed to me */
|
||||||
|
*module_interface = &soundtouch_module_interface;
|
||||||
|
|
||||||
|
/* indicate that the module should continue to be loaded */
|
||||||
|
return SWITCH_STATUS_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* 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 expandtab:
|
||||||
|
*/
|
||||||
Loading…
Reference in New Issue
Block a user