forked from Mirrors/freeswitch
IVR groundwork (move playback into the core and add timing option)
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@448 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
parent
613060fd29
commit
569be50b63
76
src/include/switch_ivr.h
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76
src/include/switch_ivr.h
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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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*
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* switch_ivr.h -- IVR Library
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*
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*/
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/**
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* @file switch_ivr.h
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* @brief IVR Library
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* @see switch_ivr
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*/
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#ifndef SWITCH_IVR_H
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#define SWITCH_IVR_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <switch.h>
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/**
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* @defgroup switch_ivr IVR Library
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* @ingroup FREESWITCH
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* A group of core functions to do IVR related functions designed to be
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* building blocks for a higher level IVR interface.
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* @{
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*/
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/*!
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\brief play a file from the disk to the session
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\param session the session to play the file too
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\param file the path to the file
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\param timer_name the name of a timer to use input will be absorbed (NULL to time off the session input).
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\param dtmf_callback code to execute if any dtmf is dialed during the playback
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\return SWITCH_STATUS_SUCCESS if all is well
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*/
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SWITCH_DECLARE(switch_status) switch_ivr_play_file(switch_core_session *session,
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char *file,
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char *timer_name,
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switch_dtmf_callback_function dtmf_callback);
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif
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184
src/switch_ivr.c
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184
src/switch_ivr.c
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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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*
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* switch_ivr_api.c -- IVR Library
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*
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*/
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#include <switch.h>
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#include <switch_ivr.h>
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/* TBD (Lots! there is only 1 function in here lol) */
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SWITCH_DECLARE(switch_status) switch_ivr_play_file(switch_core_session *session,
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char *file,
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char *timer_name,
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switch_dtmf_callback_function dtmf_callback)
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{
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switch_channel *channel;
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short buf[960];
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char dtmf[128];
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int interval = 0, samples = 0;
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size_t len = 0, ilen = 0;
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switch_frame write_frame;
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switch_timer timer;
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switch_core_thread_session thread_session;
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switch_codec codec;
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switch_memory_pool *pool = switch_core_session_get_pool(session);
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switch_file_handle fh;
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char *codec_name;
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int x;
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int stream_id;
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switch_status status = SWITCH_STATUS_SUCCESS;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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if (switch_core_file_open(&fh,
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file,
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SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT,
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switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
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switch_channel_hangup(channel);
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return SWITCH_STATUS_GENERR;
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}
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switch_channel_answer(channel);
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write_frame.data = buf;
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write_frame.buflen = sizeof(buf);
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "OPEN FILE %s %dhz %d channels\n", file, fh.samplerate, fh.channels);
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interval = 20;
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samples = (fh.samplerate / 50) * fh.channels;
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len = samples * 2;
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codec_name = "L16";
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if (switch_core_codec_init(&codec,
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codec_name,
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fh.samplerate,
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interval,
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fh.channels,
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SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
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NULL, pool) == SWITCH_STATUS_SUCCESS) {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Raw Codec Activated\n");
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write_frame.codec = &codec;
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} else {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Raw Codec Activation Failed %s@%dhz %d channels %dms\n",
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codec_name, fh.samplerate, fh.channels, interval);
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switch_core_file_close(&fh);
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return SWITCH_STATUS_GENERR;
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}
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if (timer_name) {
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if (switch_core_timer_init(&timer, timer_name, interval, samples, pool) != SWITCH_STATUS_SUCCESS) {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "setup timer failed!\n");
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switch_core_codec_destroy(&codec);
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switch_core_file_close(&fh);
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return SWITCH_STATUS_GENERR;
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}
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "setup timer success %d bytes per %d ms!\n", len, interval);
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}
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write_frame.rate = fh.samplerate;
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if (timer_name) {
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/* start a thread to absorb incoming audio */
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for (stream_id = 0; stream_id < switch_core_session_get_stream_count(session); stream_id++) {
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switch_core_service_session(session, &thread_session, stream_id);
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}
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}
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ilen = samples;
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while (switch_channel_get_state(channel) == CS_EXECUTE) {
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int done = 0;
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if (dtmf_callback) {
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/*
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dtmf handler function you can hook up to be executed when a digit is dialed during playback
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if you return anything but SWITCH_STATUS_SUCCESS the playback will stop.
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*/
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if (switch_channel_has_dtmf(channel)) {
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switch_channel_dequeue_dtmf(channel, dtmf, sizeof(dtmf));
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status = dtmf_callback(session, dtmf);
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}
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if (status != SWITCH_STATUS_SUCCESS) {
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done = 1;
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break;
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}
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}
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switch_core_file_read(&fh, buf, &ilen);
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if (done || ilen <= 0) {
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break;
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}
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write_frame.datalen = ilen * 2;
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write_frame.samples = (int) ilen;
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#ifdef SWAP_LINEAR
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switch_swap_linear(write_frame.data, (int) write_frame.datalen / 2);
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#endif
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for (stream_id = 0; stream_id < switch_core_session_get_stream_count(session); stream_id++) {
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if (switch_core_session_write_frame(session, &write_frame, -1, stream_id) != SWITCH_STATUS_SUCCESS) {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Bad Write\n");
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done = 1;
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break;
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}
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if (done) {
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break;
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}
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}
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if (timer_name) {
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if ((x = switch_core_timer_next(&timer)) < 0) {
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break;
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}
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} else { /* time off the channel (if you must) */
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switch_frame *read_frame;
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switch_core_session_read_frame(session, &read_frame, -1, 0);
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}
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}
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "done playing file\n");
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switch_core_file_close(&fh);
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switch_core_codec_destroy(&codec);
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if (timer_name) {
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/* End the audio absorbing thread */
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switch_core_thread_session_end(&thread_session);
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switch_core_timer_destroy(&timer);
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}
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return status;
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}
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