mirror of
https://github.com/jambonz/freeswitch-modules.git
synced 2025-12-19 06:57:44 +00:00
Support elevenlabs TTS streaming api (#7)
* added module for using eleven labs tts * wip Signed-off-by: Dave Horton <daveh@beachdognet.com> * fixes for caching streaming file * elevenlabs: fix issue that caused issue after mod_reload * return final response code in playback stopped event * send error if tts fails --------- Signed-off-by: Dave Horton <daveh@beachdognet.com> Co-authored-by: Dave Horton <daveh@beachdognet.com>
This commit is contained in:
Hoan Luu Huu
8
mod_elevenlabs_tts/LICENSE
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8
mod_elevenlabs_tts/LICENSE
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@@ -0,0 +1,8 @@
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Copyright 2023, Drachtio Communications Services, LLC
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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8
mod_elevenlabs_tts/Makefile.am
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8
mod_elevenlabs_tts/Makefile.am
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include $(top_srcdir)/build/modmake.rulesam
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MODNAME=mod_elevenlabs_tts
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mod_LTLIBRARIES = mod_elevenlabs_tts.la
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mod_elevenlabs_tts_la_SOURCES = mod_elevenlabs_tts.c elevenlabs_glue.cpp
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mod_elevenlabs_tts_la_CFLAGS = $(AM_CFLAGS)
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mod_elevenlabs_tts_la_LIBADD = $(switch_builddir)/libfreeswitch.la
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mod_elevenlabs_tts_la_LDFLAGS = -avoid-version -module -no-undefined -shared `pkg-config --libs boost` -lstdc++
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23
mod_elevenlabs_tts/README.md
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23
mod_elevenlabs_tts/README.md
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# mod_google_tts
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A Freeswitch module that allows Google Text-to-Speech API to be used as a tts provider.
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## API
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### Commands
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This freeswitch module does not add any new commands, per se. Rather, it integrates into the Freeswitch TTS interface such that it is invoked when an application uses the mod_dptools `speak` command with a tts engine of `google_tts` and a voice equal to the language code associated to one of the [supported Wavenet voices](https://cloud.google.com/text-to-speech/docs/voices)
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### Events
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None.
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## Usage
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When using [drachtio-fsrmf](https://www.npmjs.com/package/drachtio-fsmrf), you can access this functionality via the speak method on the 'endpoint' object.
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```js
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ep.speak({
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ttsEngine: 'google_tts',
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voice: 'en-GB-Wavenet-A',
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text: 'This aggression will not stand'
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});
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```
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## Examples
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[google_tts.js](../../examples/google_tts.js)
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980
mod_elevenlabs_tts/elevenlabs_glue.cpp
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980
mod_elevenlabs_tts/elevenlabs_glue.cpp
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#include <switch.h>
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#include <switch_json.h>
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#include <g711.h>
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#include <curl/curl.h>
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#include <deque>
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#include <map>
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#include <cstdint>
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#include <algorithm>
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#include <fstream>
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#include <chrono>
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#include <string>
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#include <cstdlib>
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#include <sys/stat.h>
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#include <iostream>
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#include <cerrno>
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#include <dirent.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <boost/circular_buffer.hpp>
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#include <boost/thread.hpp>
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#include <boost/asio.hpp>
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#include <boost/asio/ssl.hpp>
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#include <boost/pool/object_pool.hpp>
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#include <boost/bind/bind.hpp>
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#include <boost/tokenizer.hpp>
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#include <boost/foreach.hpp>
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#include <boost/asio.hpp>
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#include <boost/assign/list_of.hpp>
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#include <boost/algorithm/string.hpp>
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#include "mod_elevenlabs_tts.h"
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#define TXNID_LEN (255)
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#define URL_LEN (1024)
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#define HTTP_BODY_LEN (16384)
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#define BUFFER_GROW_SIZE (8192)
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#include <sstream>
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//#define SWITCH_UUID_FORMATTED_LENGTH (256)
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typedef boost::circular_buffer<uint16_t> CircularBuffer_t;
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/* Global information, common to all connections */
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typedef struct
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{
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CURLM *multi;
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int still_running;
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} GlobalInfo_t;
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static GlobalInfo_t global;
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/* Information associated with a specific easy handle */
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typedef struct
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{
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CURL *easy;
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elevenlabs_t* elevenlabs;
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char* body;
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struct curl_slist *hdr_list;
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GlobalInfo_t *global;
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char error[CURL_ERROR_SIZE];
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FILE* file;
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std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
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bool flushed;
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} ConnInfo_t;
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/* static singletons shared by all sessions */
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static boost::object_pool<ConnInfo_t> pool ;
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static boost::asio::io_service io_service;
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static boost::asio::deadline_timer timer(io_service);
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static std::map<curl_socket_t, boost::asio::ip::tcp::socket *> socket_map;
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static std::thread worker_thread ;
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/* statics */
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static std::string fullDirPath;
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static void timer_cb(const boost::system::error_code & error, GlobalInfo_t *g);
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static bool removeDirectory(const std::string &dirPath) {
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DIR *dir = opendir(dirPath.c_str());
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if (dir) {
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struct dirent *entry;
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while ((entry = readdir(dir)) != nullptr) {
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std::string entryPath = dirPath + "/" + entry->d_name;
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struct stat statbuf;
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if (!stat(entryPath.c_str(), &statbuf)) {
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if (S_ISDIR(statbuf.st_mode)) {
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if (std::string(entry->d_name) != "." && std::string(entry->d_name) != "..") {
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if (!removeDirectory(entryPath)) {
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closedir(dir);
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return false;
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}
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}
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} else {
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if (unlink(entryPath.c_str()) != 0) {
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closedir(dir);
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return false;
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}
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}
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}
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}
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closedir(dir);
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}
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return rmdir(dirPath.c_str()) == 0;
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}
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static bool parseHeader(const std::string& str, std::string& header, std::string& value) {
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std::vector<std::string> parts;
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boost::split(parts, str, boost::is_any_of(":"), boost::token_compress_on);
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if (parts.size() != 2)
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return false;
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header = boost::trim_copy(parts[0]);
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value = boost::trim_copy(parts[1]);
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return true;
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}
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std::string secondsToMillisecondsString(double seconds) {
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// Convert to milliseconds
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double milliseconds = seconds * 1000.0;
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// Truncate to remove fractional part
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long milliseconds_long = static_cast<long>(milliseconds);
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// Convert to string
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return std::to_string(milliseconds_long);
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}
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static void cleanupConn(ConnInfo_t *conn) {
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auto el = conn->elevenlabs;
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if( conn->hdr_list ) {
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curl_slist_free_all(conn->hdr_list);
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conn->hdr_list = nullptr ;
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}
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curl_easy_cleanup(conn->easy);
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if (conn->file) {
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if (fclose(conn->file) != 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "cleanupConn: error closing audio cache file\n");
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}
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conn->file = nullptr ;
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}
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el->conn = nullptr ;
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el->draining = 1;
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memset(conn, 0, sizeof(ConnInfo_t));
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pool.destroy(conn) ;
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}
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int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo_t *g) {
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/* cancel running timer */
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timer.cancel();
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if(timeout_ms >= 0) {
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// from libcurl 7.88.1-10+deb12u4 does not allow call curl_multi_socket_action or curl_multi_perform in curl_multi callback directly
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timer.expires_from_now(boost::posix_time::millisec(timeout_ms ? timeout_ms : 1));
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timer.async_wait(boost::bind(&timer_cb, boost::placeholders::_1, g));
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}
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return 0;
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}
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static CURL* createEasyHandle(void) {
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CURL* easy = curl_easy_init();
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if(!easy) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "curl_easy_init() failed!\n");
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return nullptr ;
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}
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curl_easy_setopt(easy, CURLOPT_FOLLOWLOCATION, 1L);
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curl_easy_setopt(easy, CURLOPT_USERAGENT, "jambonz/0.8.5");
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// set connect timeout to 3 seconds and total timeout to 109 seconds
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curl_easy_setopt(easy, CURLOPT_CONNECTTIMEOUT_MS, 3000L);
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curl_easy_setopt(easy, CURLOPT_TIMEOUT, 10L);
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return easy ;
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}
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int mcode_test(const char *where, CURLMcode code) {
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if(CURLM_OK != code) {
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const char *s;
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switch(code) {
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case CURLM_CALL_MULTI_PERFORM:
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s = "CURLM_CALL_MULTI_PERFORM";
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break;
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case CURLM_BAD_HANDLE:
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s = "CURLM_BAD_HANDLE";
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break;
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case CURLM_BAD_EASY_HANDLE:
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s = "CURLM_BAD_EASY_HANDLE";
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break;
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case CURLM_OUT_OF_MEMORY:
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s = "CURLM_OUT_OF_MEMORY";
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break;
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case CURLM_INTERNAL_ERROR:
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s = "CURLM_INTERNAL_ERROR";
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break;
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case CURLM_UNKNOWN_OPTION:
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s = "CURLM_UNKNOWN_OPTION";
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break;
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case CURLM_LAST:
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s = "CURLM_LAST";
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break;
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default:
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s = "CURLM_unknown";
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break;
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case CURLM_BAD_SOCKET:
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s = "CURLM_BAD_SOCKET";
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break;
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}
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "mcode_test ERROR: %s returns %s:%d\n", where, s, code);
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return -1;
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}
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return 0 ;
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}
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static void remsock(int *f, GlobalInfo_t *g) {
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if(f) {
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free(f);
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f = NULL;
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}
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}
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/* Check for completed transfers, and remove their easy handles */
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void check_multi_info(GlobalInfo_t *g) {
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CURLMsg *msg;
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int msgs_left;
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ConnInfo_t *conn;
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CURL *easy;
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CURLcode res;
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while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
|
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if(msg->msg == CURLMSG_DONE) {
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long response_code;
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double namelookup=0, connect=0, total=0 ;
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char *ct = NULL ;
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easy = msg->easy_handle;
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res = msg->data.result;
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curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
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curl_easy_getinfo(easy, CURLINFO_RESPONSE_CODE, &response_code);
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curl_easy_getinfo(easy, CURLINFO_CONTENT_TYPE, &ct);
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curl_easy_getinfo(easy, CURLINFO_NAMELOOKUP_TIME, &namelookup);
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curl_easy_getinfo(easy, CURLINFO_CONNECT_TIME, &connect);
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curl_easy_getinfo(easy, CURLINFO_TOTAL_TIME, &total);
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auto el = conn->elevenlabs;
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el->response_code = response_code;
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if (ct) el->ct = strdup(ct);
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||||
|
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std::string name_lookup_ms = secondsToMillisecondsString(namelookup);
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std::string connect_ms = secondsToMillisecondsString(connect);
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std::string final_response_time_ms = secondsToMillisecondsString(total);
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
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"mod_elevenlabs_tts: response: %ld, content-type %s,"
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"dns(ms): %" CURL_FORMAT_CURL_OFF_T ".%06ld, "
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"connect(ms): %" CURL_FORMAT_CURL_OFF_T ".%06ld, "
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"total(ms): %" CURL_FORMAT_CURL_OFF_T ".%06ld\n",
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response_code, ct,
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(long)(namelookup), (long)(fmod(namelookup, 1.0) * 1000000),
|
||||
(long)(connect), (long)(fmod(connect, 1.0) * 1000000),
|
||||
(long)(total), (long)(fmod(total, 1.0) * 1000000));
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "name lookup time: %s\n", name_lookup_ms.c_str());
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "connect time: %s\n", connect_ms.c_str());
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "final response time: %s\n", final_response_time_ms.c_str());
|
||||
|
||||
el->name_lookup_time_ms = strdup(name_lookup_ms.c_str());
|
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el->connect_time_ms = strdup(connect_ms.c_str());
|
||||
el->final_response_time_ms = strdup(final_response_time_ms.c_str());
|
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|
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curl_multi_remove_handle(g->multi, easy);
|
||||
cleanupConn(conn);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Called by asio when there is an action on a socket */
|
||||
static void event_cb(GlobalInfo_t *g, curl_socket_t s, int action, const boost::system::error_code & error, int *fdp) {
|
||||
int f = *fdp;
|
||||
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "event_cb socket %#X has action %d\n", s, action) ;
|
||||
|
||||
// Socket already POOL REMOVED.
|
||||
if (f == CURL_POLL_REMOVE) {
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "event_cb socket %#X removed\n", s);
|
||||
remsock(fdp, g);
|
||||
return;
|
||||
}
|
||||
|
||||
if(socket_map.find(s) == socket_map.end()) {
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "event_cb: socket %#X already closed\n, s");
|
||||
return;
|
||||
}
|
||||
|
||||
/* make sure the event matches what are wanted */
|
||||
if(f == action || f == CURL_POLL_INOUT) {
|
||||
if(error) {
|
||||
action = CURL_CSELECT_ERR;
|
||||
}
|
||||
CURLMcode rc = curl_multi_socket_action(g->multi, s, action, &g->still_running);
|
||||
|
||||
mcode_test("event_cb: curl_multi_socket_action", rc);
|
||||
check_multi_info(g);
|
||||
|
||||
if(g->still_running <= 0) {
|
||||
timer.cancel();
|
||||
}
|
||||
|
||||
/* keep on watching.
|
||||
* the socket may have been closed and/or fdp may have been changed
|
||||
* in curl_multi_socket_action(), so check them both */
|
||||
if(!error && socket_map.find(s) != socket_map.end() &&
|
||||
(f == action || f == CURL_POLL_INOUT)) {
|
||||
boost::asio::ip::tcp::socket *tcp_socket = socket_map.find(s)->second;
|
||||
|
||||
if(action == CURL_POLL_IN) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
action, boost::placeholders::_1, fdp));
|
||||
}
|
||||
if(action == CURL_POLL_OUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
action, boost::placeholders::_1, fdp));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* socket functions */
|
||||
static void setsock(int *fdp, curl_socket_t s, CURL *e, int act, int oldact, GlobalInfo_t *g) {
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(s);
|
||||
|
||||
if(it == socket_map.end()) {
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "setsock: socket %#X not found\n, s");
|
||||
return;
|
||||
}
|
||||
|
||||
boost::asio::ip::tcp::socket * tcp_socket = it->second;
|
||||
|
||||
*fdp = act;
|
||||
|
||||
if(act == CURL_POLL_IN) {
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
CURL_POLL_IN, boost::placeholders::_1, fdp));
|
||||
}
|
||||
}
|
||||
else if(act == CURL_POLL_OUT) {
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
CURL_POLL_OUT, boost::placeholders::_1, fdp));
|
||||
}
|
||||
}
|
||||
else if(act == CURL_POLL_INOUT) {
|
||||
if(oldact != CURL_POLL_IN && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_read_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
CURL_POLL_IN, boost::placeholders::_1, fdp));
|
||||
}
|
||||
if(oldact != CURL_POLL_OUT && oldact != CURL_POLL_INOUT) {
|
||||
tcp_socket->async_write_some(boost::asio::null_buffers(),
|
||||
boost::bind(&event_cb, g, s,
|
||||
CURL_POLL_OUT, boost::placeholders::_1, fdp));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo_t *g) {
|
||||
/* fdp is used to store current action */
|
||||
int *fdp = (int *) calloc(sizeof(int), 1);
|
||||
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "addsock socket %#X\n", s);
|
||||
|
||||
setsock(fdp, s, easy, action, 0, g);
|
||||
curl_multi_assign(g->multi, s, fdp);
|
||||
}
|
||||
|
||||
|
||||
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp) {
|
||||
GlobalInfo_t *g = &global;
|
||||
|
||||
int *actionp = (int *) sockp;
|
||||
static const char *whatstr[] = { "none", "IN", "OUT", "INOUT", "REMOVE"};
|
||||
|
||||
if(what == CURL_POLL_REMOVE) {
|
||||
*actionp = what;
|
||||
}
|
||||
else {
|
||||
if(!actionp) {
|
||||
addsock(s, e, what, g);
|
||||
}
|
||||
else {
|
||||
setsock(actionp, s, e, what, *actionp, g);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Called by asio when our timeout expires */
|
||||
static void timer_cb(const boost::system::error_code & error, GlobalInfo_t *g)
|
||||
{
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "timer_cb\n");
|
||||
|
||||
if(!error) {
|
||||
CURLMcode rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0, &g->still_running);
|
||||
mcode_test("timer_cb: curl_multi_socket_action", rc);
|
||||
check_multi_info(g);
|
||||
}
|
||||
}
|
||||
|
||||
static std::vector<uint16_t> convert_ulaw_to_linear(uint8_t *data, size_t len) {
|
||||
std::vector<uint16_t> linear_data;
|
||||
linear_data.reserve(len); // Reserve space to avoid reallocation
|
||||
|
||||
for (size_t i = 0; i < len; i++) {
|
||||
linear_data.push_back(ulaw_to_linear(data[i]));
|
||||
}
|
||||
return linear_data;
|
||||
}
|
||||
|
||||
|
||||
/* CURLOPT_WRITEFUNCTION */
|
||||
static size_t write_cb(void *ptr, size_t size, size_t nmemb, ConnInfo_t *conn) {
|
||||
bool fireEvent = false;
|
||||
uint8_t *data = (uint8_t *) ptr;
|
||||
size_t bytes_received = size * nmemb;
|
||||
auto el = conn->elevenlabs;
|
||||
CircularBuffer_t *cBuffer = (CircularBuffer_t *) el->circularBuffer;
|
||||
std::vector<uint16_t> pcm_data;
|
||||
|
||||
if (conn->flushed) {
|
||||
/* this will abort the transfer */
|
||||
return 0;
|
||||
}
|
||||
{
|
||||
switch_mutex_lock(el->mutex);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "write_cb: received data, response %ld\n",
|
||||
el->response_code);
|
||||
|
||||
if (el->response_code > 0 && el->response_code != 200) {
|
||||
std::string body((char *) ptr, bytes_received);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: received body %s\n", body.c_str());
|
||||
el->err_msg = strdup(body.c_str());
|
||||
switch_mutex_unlock(el->mutex);
|
||||
return 0;
|
||||
}
|
||||
pcm_data = convert_ulaw_to_linear(data, bytes_received);
|
||||
|
||||
/* and write to the file */
|
||||
size_t bytesResampled = pcm_data.size() * sizeof(uint16_t);
|
||||
if (conn->file) fwrite(pcm_data.data(), sizeof(uint16_t), pcm_data.size(), conn->file);
|
||||
|
||||
// Resize the buffer if necessary
|
||||
if (cBuffer->capacity() - cBuffer->size() < (bytesResampled / sizeof(uint16_t))) {
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "write_cb growing buffer\n");
|
||||
|
||||
//TODO: if buffer exceeds some max size, return CURL_WRITEFUNC_ERROR to abort the transfer
|
||||
cBuffer->set_capacity(cBuffer->size() + std::max((bytesResampled / sizeof(uint16_t)), (size_t)BUFFER_GROW_SIZE));
|
||||
}
|
||||
|
||||
/* Push the data into the buffer */
|
||||
cBuffer->insert(cBuffer->end(), pcm_data.data(), pcm_data.data() + pcm_data.size());
|
||||
|
||||
if (0 == el->reads++) {
|
||||
fireEvent = true;
|
||||
|
||||
/* trime leading 50ms = 400 samples since on elevenlabs it is silence */
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "write_cb triming 400 samples (50ms) silence from start of buffer\n");
|
||||
//cBuffer->erase(cBuffer->begin(), cBuffer->begin() + 400);
|
||||
}
|
||||
switch_mutex_unlock(el->mutex);
|
||||
}
|
||||
if (fireEvent && el->session_id) {
|
||||
auto endTime = std::chrono::high_resolution_clock::now();
|
||||
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(endTime - conn->startTime);
|
||||
auto time_to_first_byte_ms = std::to_string(duration.count());
|
||||
switch_core_session_t* session = switch_core_session_locate(el->session_id);
|
||||
if (session) {
|
||||
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||||
if (channel) {
|
||||
switch_event_t *event;
|
||||
if (switch_event_create(&event, SWITCH_EVENT_PLAYBACK_START) == SWITCH_STATUS_SUCCESS) {
|
||||
switch_channel_event_set_data(channel, event);
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "write_cb: firing playback-started\n");
|
||||
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Playback-File-Type", "tts_stream");
|
||||
if (el->reported_latency) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_reported_latency_ms", el->reported_latency);
|
||||
}
|
||||
if (el->request_id) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_request_id", el->request_id);
|
||||
}
|
||||
if (el->history_item_id) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_history_item_id", el->history_item_id);
|
||||
}
|
||||
if (el->name_lookup_time_ms) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_name_lookup_time_ms", el->name_lookup_time_ms);
|
||||
}
|
||||
if (el->connect_time_ms) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_connect_time_ms", el->connect_time_ms);
|
||||
}
|
||||
if (el->final_response_time_ms) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_final_response_time_ms", el->final_response_time_ms);
|
||||
}
|
||||
if (el->voice_name) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_voice_name", el->voice_name);
|
||||
}
|
||||
if (el->model_id) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_model_id", el->model_id);
|
||||
}
|
||||
if (el->optimize_streaming_latency) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_optimize_streaming_latency", el->optimize_streaming_latency);
|
||||
}
|
||||
if (el->cache_filename) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_cache_filename", el->cache_filename);
|
||||
}
|
||||
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_time_to_first_byte_ms", time_to_first_byte_ms.c_str());
|
||||
switch_event_fire(&event);
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: failed to create event\n");
|
||||
}
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: channel not found\n");
|
||||
}
|
||||
switch_core_session_rwunlock(session);
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: session %s not found\n", el->session_id);
|
||||
}
|
||||
}
|
||||
return bytes_received;
|
||||
}
|
||||
|
||||
static size_t header_callback(char *buffer, size_t size, size_t nitems, ConnInfo_t *conn) {
|
||||
size_t bytes_received = size * nitems;
|
||||
const std::string prefix = "HTTP/2 ";
|
||||
elevenlabs_t* el = conn->elevenlabs;
|
||||
std::string header, value;
|
||||
std::string input(buffer, bytes_received);
|
||||
if (parseHeader(input, header, value)) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "recv header: %s with value %s\n", header.c_str(), value.c_str());
|
||||
if (0 == header.compare("tts-latency-ms")) el->reported_latency = strdup(value.c_str());
|
||||
else if (0 == header.compare("request-id")) el->request_id = strdup(value.c_str());
|
||||
else if (0 == header.compare("history-item-id")) el->history_item_id = strdup(value.c_str());
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "recv header: %s\n", input.c_str());
|
||||
if (input.rfind(prefix, 0) == 0) {
|
||||
try {
|
||||
el->response_code = std::stoi(input.substr(prefix.length()));
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "parsed response code: %ld\n", el->response_code);
|
||||
} catch (const std::invalid_argument& e) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "header_callback: invalid response code %s\n", input.substr(prefix.length()).c_str());
|
||||
}
|
||||
}
|
||||
}
|
||||
return bytes_received;
|
||||
}
|
||||
|
||||
/* CURLOPT_OPENSOCKETFUNCTION */
|
||||
static curl_socket_t opensocket(void *clientp, curlsocktype purpose, struct curl_sockaddr *address) {
|
||||
curl_socket_t sockfd = CURL_SOCKET_BAD;
|
||||
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "opensocket: %d\n", purpose);
|
||||
/* restrict to IPv4 */
|
||||
if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET) {
|
||||
/* create a tcp socket object */
|
||||
boost::asio::ip::tcp::socket *tcp_socket = new boost::asio::ip::tcp::socket(io_service);
|
||||
|
||||
/* open it and get the native handle*/
|
||||
boost::system::error_code ec;
|
||||
tcp_socket->open(boost::asio::ip::tcp::v4(), ec);
|
||||
|
||||
if(ec) {
|
||||
/* An error occurred */
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't open socket [%ld][%s]\n", ec, ec.message().c_str());
|
||||
}
|
||||
else {
|
||||
sockfd = tcp_socket->native_handle();
|
||||
|
||||
/* save it for monitoring */
|
||||
socket_map.insert(std::pair<curl_socket_t, boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
|
||||
}
|
||||
}
|
||||
return sockfd;
|
||||
}
|
||||
|
||||
/* CURLOPT_CLOSESOCKETFUNCTION */
|
||||
static int close_socket(void *clientp, curl_socket_t item) {
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "close_socket : %#X\n", item);
|
||||
|
||||
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(item);
|
||||
if(it != socket_map.end()) {
|
||||
delete it->second;
|
||||
socket_map.erase(it);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void threadFunc() {
|
||||
/* to make sure the event loop doesn't terminate when there is no work to do */
|
||||
io_service.reset() ;
|
||||
boost::asio::io_service::work work(io_service);
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "mod_elevenlabs_tts threadFunc - starting\n");
|
||||
|
||||
for(;;) {
|
||||
|
||||
try {
|
||||
io_service.run() ;
|
||||
break ;
|
||||
}
|
||||
catch( std::exception& e) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "mod_elevenlabs_tts threadFunc - Error: %s\n", e.what());
|
||||
}
|
||||
}
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "mod_elevenlabs_tts threadFunc - ending\n");
|
||||
}
|
||||
|
||||
/* C api bindings */
|
||||
|
||||
extern "C" {
|
||||
switch_status_t elevenlabs_speech_load() {
|
||||
memset(&global, 0, sizeof(GlobalInfo_t));
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_loadng..\n");
|
||||
|
||||
global.multi = curl_multi_init();
|
||||
|
||||
if (!global.multi) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "curl_multi_init() failed, exiting!\n");
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
curl_multi_setopt(global.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
|
||||
curl_multi_setopt(global.multi, CURLMOPT_SOCKETDATA, &global);
|
||||
curl_multi_setopt(global.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
|
||||
curl_multi_setopt(global.multi, CURLMOPT_TIMERDATA, &global);
|
||||
curl_multi_setopt(global.multi, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
|
||||
|
||||
/* create temp folder for cache files */
|
||||
const char* baseDir = std::getenv("JAMBONZ_TMP_CACHE_FOLDER");
|
||||
if (!baseDir) {
|
||||
baseDir = "/var/";
|
||||
}
|
||||
if (strcmp(baseDir, "/") == 0) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "failed to create folder %s\n", baseDir);
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
fullDirPath = std::string(baseDir) + "jambonz-tts-cache-files";
|
||||
|
||||
// Create the directory with read, write, and execute permissions for everyone
|
||||
mode_t oldMask = umask(0);
|
||||
int result = mkdir(fullDirPath.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
|
||||
umask(oldMask);
|
||||
if (result != 0) {
|
||||
if (errno != EEXIST) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "failed to create folder %s\n", fullDirPath.c_str());
|
||||
fullDirPath = "";
|
||||
}
|
||||
else switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "folder %s already exists\n", fullDirPath.c_str());
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "created folder %s\n", fullDirPath.c_str());
|
||||
}
|
||||
|
||||
/* start worker thread that handles transfers*/
|
||||
std::thread t(threadFunc) ;
|
||||
worker_thread.swap( t ) ;
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_loaded..\n");
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_unload() {
|
||||
/* stop the ASIO IO service */
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "elevenlabs_speech_unload: stopping io service\n");
|
||||
io_service.stop();
|
||||
|
||||
/* Join the worker thread */
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "elevenlabs_speech_unload: wait for worker thread to complete\n");
|
||||
if (worker_thread.joinable()) {
|
||||
worker_thread.join();
|
||||
}
|
||||
|
||||
/* cleanup curl multi handle*/
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "elevenlabs_speech_unload: release curl multi\n");
|
||||
curl_multi_cleanup(global.multi);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "elevenlabs_speech_unload: completed\n");
|
||||
|
||||
if (!fullDirPath.empty()) {
|
||||
if (removeDirectory(fullDirPath)) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "elevenlabs_speech_unload: removed folder %s\n", fullDirPath.c_str());
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "elevenlabs_speech_unload: failed to remove folder %s\n", fullDirPath.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_open() {
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_feed_tts(elevenlabs_t* el, char* text, switch_speech_flag_t *flags) {
|
||||
CURLMcode rc;
|
||||
const int MAX_CHARS = 20;
|
||||
char tempText[MAX_CHARS + 4]; // +4 for the ellipsis and null terminator
|
||||
|
||||
if (strlen(text) > MAX_CHARS) {
|
||||
strncpy(tempText, text, MAX_CHARS);
|
||||
strcpy(tempText + MAX_CHARS, "...");
|
||||
} else {
|
||||
strcpy(tempText, text);
|
||||
}
|
||||
|
||||
/* open cache file */
|
||||
if (el->cache_audio && fullDirPath.length() > 0) {
|
||||
switch_uuid_t uuid;
|
||||
char uuid_str[SWITCH_UUID_FORMATTED_LENGTH + 1];
|
||||
char outfile[512] = "";
|
||||
int fd;
|
||||
|
||||
switch_uuid_get(&uuid);
|
||||
switch_uuid_format(uuid_str, &uuid);
|
||||
|
||||
switch_snprintf(outfile, sizeof(outfile), "%s%s%s.r8", fullDirPath.c_str(), SWITCH_PATH_SEPARATOR, uuid_str);
|
||||
el->cache_filename = strdup(outfile);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "writing audio cache file to %s\n", el->cache_filename);
|
||||
|
||||
mode_t oldMask = umask(0);
|
||||
fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
|
||||
umask(oldMask);
|
||||
if (fd == -1 ) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening cache file %s: %s\n", outfile, strerror(errno));
|
||||
}
|
||||
else {
|
||||
el->file = fdopen(fd, "wb");
|
||||
if (!el->file) {
|
||||
close(fd);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening cache file %s: %s\n", outfile, strerror(errno));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_feed_tts: text %s\n", text);
|
||||
|
||||
if (!el->api_key) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "eevenlabs_speech_feed_tts: no api_key provided\n");
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
if (!el->model_id) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "elevenlabs_speech_feed_tts: no model_id provided\n");
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
/* format url*/
|
||||
std::string url;
|
||||
std::ostringstream url_stream;
|
||||
url_stream << "https://api.elevenlabs.io/v1/text-to-speech/" << el->voice_name << "/stream?";
|
||||
url_stream << "optimize_streaming_latency=" << el->optimize_streaming_latency << "&output_format=ulaw_8000";
|
||||
url = url_stream.str();
|
||||
|
||||
/* create the JSON body */
|
||||
cJSON * jResult = cJSON_CreateObject();
|
||||
cJSON_AddStringToObject(jResult, "model_id", el->model_id);
|
||||
cJSON_AddStringToObject(jResult, "text", text);
|
||||
if (el->similarity_boost || el->style || el->use_speaker_boost || el->stability) {
|
||||
cJSON * jVoiceSettings = cJSON_CreateObject();
|
||||
cJSON_AddItemToObject(jResult, "voice_settings", jVoiceSettings);
|
||||
if (el->similarity_boost) {
|
||||
cJSON_AddStringToObject(jVoiceSettings, "similarity_boost", el->similarity_boost);
|
||||
}
|
||||
if (el->style) {
|
||||
cJSON_AddStringToObject(jVoiceSettings, "style", el->style);
|
||||
}
|
||||
if (el->use_speaker_boost) {
|
||||
cJSON_AddStringToObject(jVoiceSettings, "use_speaker_boost", el->use_speaker_boost);
|
||||
}
|
||||
if (el->stability) {
|
||||
cJSON_AddStringToObject(jVoiceSettings, "stability", el->stability);
|
||||
}
|
||||
}
|
||||
char *json = cJSON_PrintUnformatted(jResult);;
|
||||
|
||||
cJSON_Delete(jResult);
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_feed_tts: [%s] [%s]\n", url.c_str(), tempText);
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_feed_tts: %s\n", json);
|
||||
|
||||
ConnInfo_t *conn = pool.malloc() ;
|
||||
|
||||
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "allocated Conn %p\n", conn);
|
||||
|
||||
CURL* easy = createEasyHandle();
|
||||
|
||||
el->conn = (void *) conn ;
|
||||
conn->elevenlabs = el;
|
||||
conn->easy = easy;
|
||||
conn->global = &global;
|
||||
conn->hdr_list = NULL ;
|
||||
conn->file = el->file;
|
||||
conn->body = json;
|
||||
conn->flushed = false;
|
||||
|
||||
el->circularBuffer = (void *) new CircularBuffer_t(8192);
|
||||
|
||||
std::ostringstream api_key_stream;
|
||||
api_key_stream << "xi-api-key: " << el->api_key;
|
||||
|
||||
curl_easy_setopt(easy, CURLOPT_URL, url.c_str());
|
||||
curl_easy_setopt(easy, CURLOPT_WRITEFUNCTION, write_cb);
|
||||
curl_easy_setopt(easy, CURLOPT_WRITEDATA, conn);
|
||||
curl_easy_setopt(easy, CURLOPT_ERRORBUFFER, conn->error);
|
||||
curl_easy_setopt(easy, CURLOPT_PRIVATE, conn);
|
||||
curl_easy_setopt(easy, CURLOPT_VERBOSE, 0L);
|
||||
curl_easy_setopt(easy, CURLOPT_NOPROGRESS, 1L);
|
||||
curl_easy_setopt(easy, CURLOPT_HEADERFUNCTION, header_callback);
|
||||
curl_easy_setopt(easy, CURLOPT_HEADERDATA, conn);
|
||||
|
||||
/* call this function to get a socket */
|
||||
curl_easy_setopt(easy, CURLOPT_OPENSOCKETFUNCTION, opensocket);
|
||||
|
||||
/* call this function to close a socket */
|
||||
curl_easy_setopt(easy, CURLOPT_CLOSESOCKETFUNCTION, close_socket);
|
||||
|
||||
conn->hdr_list = curl_slist_append(conn->hdr_list, api_key_stream.str().c_str());
|
||||
conn->hdr_list = curl_slist_append(conn->hdr_list, "Content-Type: application/json");
|
||||
curl_easy_setopt(easy, CURLOPT_HTTPHEADER, conn->hdr_list);
|
||||
|
||||
curl_easy_setopt(easy, CURLOPT_POSTFIELDS, conn->body);
|
||||
//curl_easy_setopt(easy, CURLOPT_POSTFIELDSIZE, body.length());
|
||||
|
||||
curl_easy_setopt(easy, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
|
||||
|
||||
rc = curl_multi_add_handle(global.multi, conn->easy);
|
||||
mcode_test("new_conn: curl_multi_add_handle", rc);
|
||||
|
||||
/* start a timer to measure the duration until we receive first byte of audio */
|
||||
conn->startTime = std::chrono::high_resolution_clock::now();
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "elevenlabs_speech_feed_tts: called curl_multi_add_handle\n");
|
||||
|
||||
/* note that the add_handle() will set a time-out to trigger very soon so
|
||||
that the necessary socket_action() call will be called by this app */
|
||||
|
||||
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_read_tts(elevenlabs_t* el, void *data, size_t *datalen, switch_speech_flag_t *flags) {
|
||||
CircularBuffer_t *cBuffer = (CircularBuffer_t *) el->circularBuffer;
|
||||
std::vector<uint16_t> pcm_data;
|
||||
|
||||
{
|
||||
switch_mutex_lock(el->mutex);
|
||||
ConnInfo_t *conn = (ConnInfo_t *) el->conn;
|
||||
|
||||
if (el->response_code > 0 && el->response_code != 200) {
|
||||
switch_mutex_unlock(el->mutex);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_read_tts, returning failure\n") ;
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
if (conn && conn->flushed) {
|
||||
switch_mutex_unlock(el->mutex);
|
||||
return SWITCH_STATUS_BREAK;
|
||||
}
|
||||
if (cBuffer->empty()) {
|
||||
if (el->draining) {
|
||||
switch_mutex_unlock(el->mutex);
|
||||
return SWITCH_STATUS_BREAK;
|
||||
}
|
||||
/* no audio available yet so send silence */
|
||||
memset(data, 255, *datalen);
|
||||
switch_mutex_unlock(el->mutex);
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
size_t size = std::min((*datalen/2), cBuffer->size());
|
||||
pcm_data.insert(pcm_data.end(), cBuffer->begin(), cBuffer->begin() + size);
|
||||
cBuffer->erase(cBuffer->begin(), cBuffer->begin() + size);
|
||||
switch_mutex_unlock(el->mutex);
|
||||
}
|
||||
|
||||
memcpy(data, pcm_data.data(), pcm_data.size() * sizeof(uint16_t));
|
||||
*datalen = pcm_data.size() * sizeof(uint16_t);
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_flush_tts(elevenlabs_t* el) {
|
||||
bool download_complete = el->response_code == 200;
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_flush_tts, download complete? %s\n", download_complete ? "yes" : "no") ;
|
||||
|
||||
ConnInfo_t *conn = (ConnInfo_t *) el->conn;
|
||||
CircularBuffer_t *cBuffer = (CircularBuffer_t *) el->circularBuffer;
|
||||
delete cBuffer;
|
||||
el->circularBuffer = nullptr ;
|
||||
|
||||
if (conn) {
|
||||
conn->flushed = true;
|
||||
if (!download_complete) {
|
||||
if (conn->file) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "closing audio cache file %s because download was interrupted\n", el->cache_filename);
|
||||
if (fclose(conn->file) != 0) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "error closing audio cache file\n");
|
||||
}
|
||||
conn->file = nullptr ;
|
||||
}
|
||||
|
||||
if (el->cache_filename) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "removing audio cache file %s because download was interrupted\n", el->cache_filename);
|
||||
if (unlink(el->cache_filename) != 0) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "cleanupConn: error removing audio cache file %s: %d:%s\n",
|
||||
el->cache_filename, errno, strerror(errno));
|
||||
}
|
||||
free(el->cache_filename);
|
||||
el->cache_filename = nullptr ;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (el->session_id) {
|
||||
switch_core_session_t* session = switch_core_session_locate(el->session_id);
|
||||
if (session) {
|
||||
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||||
if (channel) {
|
||||
switch_event_t *event;
|
||||
if (switch_event_create(&event, SWITCH_EVENT_PLAYBACK_STOP) == SWITCH_STATUS_SUCCESS) {
|
||||
switch_channel_event_set_data(channel, event);
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Playback-File-Type", "tts_stream");
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_elevenlabs_response_code", std::to_string(el->response_code).c_str());
|
||||
if (el->cache_filename && el->response_code == 200) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_cache_filename", el->cache_filename);
|
||||
}
|
||||
if (el->response_code != 200 && el->err_msg) {
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "variable_tts_error", el->err_msg);
|
||||
}
|
||||
switch_event_fire(&event);
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: failed to create event\n");
|
||||
}
|
||||
}
|
||||
else {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "write_cb: channel not found\n");
|
||||
}
|
||||
switch_core_session_rwunlock(session);
|
||||
}
|
||||
}
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
switch_status_t elevenlabs_speech_close(elevenlabs_t* el) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "elevenlabs_speech_close\n") ;
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
}
|
||||
12
mod_elevenlabs_tts/elevenlabs_glue.h
Normal file
12
mod_elevenlabs_tts/elevenlabs_glue.h
Normal file
@@ -0,0 +1,12 @@
|
||||
#ifndef __ELEVENLABS_GLUE_H__
|
||||
#define __ELEVENLABS_GLUE_H__
|
||||
|
||||
switch_status_t elevenlabs_speech_load();
|
||||
switch_status_t elevenlabs_speech_open(elevenlabs_t* elevenlabs);
|
||||
switch_status_t elevenlabs_speech_feed_tts(elevenlabs_t* elevenlabs, char* text, switch_speech_flag_t *flags);
|
||||
switch_status_t elevenlabs_speech_read_tts(elevenlabs_t* elevenlabs, void *data, size_t *datalen, switch_speech_flag_t *flags);
|
||||
switch_status_t elevenlabs_speech_flush_tts(elevenlabs_t* elevenlabs);
|
||||
switch_status_t elevenlabs_speech_close(elevenlabs_t* elevenlabs);
|
||||
switch_status_t elevenlabs_speech_unload();
|
||||
|
||||
#endif
|
||||
214
mod_elevenlabs_tts/mod_elevenlabs_tts.c
Normal file
214
mod_elevenlabs_tts/mod_elevenlabs_tts.c
Normal file
@@ -0,0 +1,214 @@
|
||||
/*
|
||||
*
|
||||
* mod_elevenlabs_tts.c -- Google GRPC-based text to speech
|
||||
*
|
||||
*/
|
||||
#include "mod_elevenlabs_tts.h"
|
||||
#include "elevenlabs_glue.h"
|
||||
|
||||
SWITCH_MODULE_LOAD_FUNCTION(mod_elevenlabs_tts_load);
|
||||
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_elevenlabs_tts_shutdown);
|
||||
SWITCH_MODULE_DEFINITION(mod_elevenlabs_tts, mod_elevenlabs_tts_load, mod_elevenlabs_tts_shutdown, NULL);
|
||||
|
||||
static void clearElevenlabs(elevenlabs_t* el, int freeAll) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "clearElevenlabs\n");
|
||||
if (el->api_key) free(el->api_key);
|
||||
if (el->model_id) free(el->model_id);
|
||||
if (el->similarity_boost) free(el->similarity_boost);
|
||||
if (el->stability) free(el->stability);
|
||||
if (el->style) free(el->style);
|
||||
if (el->use_speaker_boost) free(el->use_speaker_boost);
|
||||
if (el->optimize_streaming_latency) free(el->optimize_streaming_latency);
|
||||
if (el->ct) free(el->ct);
|
||||
if (el->reported_latency) free(el->reported_latency);
|
||||
if (el->request_id) free(el->request_id);
|
||||
if (el->history_item_id) free(el->history_item_id);
|
||||
if (el->err_msg) free(el->err_msg);
|
||||
if (el->name_lookup_time_ms) free(el->name_lookup_time_ms);
|
||||
if (el->connect_time_ms) free(el->connect_time_ms);
|
||||
if (el->final_response_time_ms) free(el->final_response_time_ms);
|
||||
if (el->cache_filename) free(el->cache_filename);
|
||||
|
||||
el->api_key = NULL;
|
||||
el->model_id = NULL;
|
||||
el->similarity_boost = NULL;
|
||||
el->stability = NULL;
|
||||
el->style = NULL;
|
||||
el->use_speaker_boost = NULL;
|
||||
el->optimize_streaming_latency = NULL;
|
||||
el->ct = NULL;
|
||||
el->reported_latency = NULL;
|
||||
el->request_id = NULL;
|
||||
el->history_item_id = NULL;
|
||||
el->err_msg = NULL;
|
||||
el->name_lookup_time_ms = NULL;
|
||||
el->connect_time_ms = NULL;
|
||||
el->final_response_time_ms = NULL;
|
||||
el->cache_filename = NULL;
|
||||
|
||||
el->file = NULL;
|
||||
|
||||
if (freeAll) {
|
||||
if (el->voice_name) free(el->voice_name);
|
||||
if (el->session_id) free(el->session_id);
|
||||
el->voice_name = NULL;
|
||||
el->session_id = NULL;
|
||||
}
|
||||
}
|
||||
static elevenlabs_t * createOrRetrievePrivateData(switch_speech_handle_t *sh) {
|
||||
elevenlabs_t *el = (elevenlabs_t *) sh->private_info;
|
||||
if (!el) {
|
||||
el = switch_core_alloc(sh->memory_pool, sizeof(*el));
|
||||
sh->private_info = el;
|
||||
memset(el, 0, sizeof(*el));
|
||||
switch_mutex_init(&el->mutex, SWITCH_MUTEX_NESTED, sh->memory_pool);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "allocated elevenlabs_t\n");
|
||||
}
|
||||
return el;
|
||||
}
|
||||
|
||||
/**
|
||||
* this is called when FreeSWITCH loads the module
|
||||
* if the module is retrieved from cache this will not be called
|
||||
* therefore, probably best not to connect to elevenlabs yet
|
||||
* Note: if cached, the voice will be provide as a param
|
||||
*/
|
||||
static switch_status_t ell_speech_open(switch_speech_handle_t *sh, const char *voice_name, int rate, int channels, switch_speech_flag_t *flags)
|
||||
{
|
||||
|
||||
elevenlabs_t *el = createOrRetrievePrivateData(sh);
|
||||
el->voice_name = strdup(voice_name);
|
||||
el->rate = rate;
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ell_speech_open voice: %s, rate %d, channels %d\n", voice_name, rate, channels);
|
||||
return elevenlabs_speech_open(el);
|
||||
}
|
||||
|
||||
static switch_status_t ell_speech_close(switch_speech_handle_t *sh, switch_speech_flag_t *flags)
|
||||
{
|
||||
switch_status_t rc;
|
||||
elevenlabs_t *el = (elevenlabs_t *) sh->private_info;
|
||||
assert(el != NULL);
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ell_speech_close\n");
|
||||
|
||||
switch_mutex_destroy(el->mutex);
|
||||
|
||||
rc = elevenlabs_speech_close(el);
|
||||
clearElevenlabs(el, 1);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* Freeswitch will call this function to feed us text to speak
|
||||
*/
|
||||
static switch_status_t ell_speech_feed_tts(switch_speech_handle_t *sh, char *text, switch_speech_flag_t *flags)
|
||||
{
|
||||
elevenlabs_t *el = createOrRetrievePrivateData(sh);
|
||||
el->draining = 0;
|
||||
el->reads = 0;
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ell_speech_feed_tts\n");
|
||||
|
||||
return elevenlabs_speech_feed_tts(el, text, flags);
|
||||
}
|
||||
|
||||
/**
|
||||
* This is called at the end, not sure exactly what we need to do here..
|
||||
*/
|
||||
static void ell_speech_flush_tts(switch_speech_handle_t *sh)
|
||||
{
|
||||
elevenlabs_t *el = (elevenlabs_t *) sh->private_info;
|
||||
//assert(el != NULL);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ell_speech_flush_tts\n");
|
||||
elevenlabs_speech_flush_tts(el);
|
||||
|
||||
clearElevenlabs(el, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* Freeswitch calls periodically to get some rendered audio in L16 format. We can provide up to 8k of audio at a time.
|
||||
*/
|
||||
static switch_status_t ell_speech_read_tts(switch_speech_handle_t *sh, void *data, size_t *datalen, switch_speech_flag_t *flags)
|
||||
{
|
||||
elevenlabs_t *el = (elevenlabs_t *) sh->private_info;
|
||||
return elevenlabs_speech_read_tts(el, data, datalen, flags);
|
||||
}
|
||||
|
||||
static void ell_text_param_tts(switch_speech_handle_t *sh, char *param, const char *val)
|
||||
{
|
||||
elevenlabs_t *el = createOrRetrievePrivateData(sh);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ell_text_param_tts: %s=%s\n", param, val);
|
||||
|
||||
if (0 == strcmp(param, "voice")) {
|
||||
if (el->voice_name) free(el->voice_name);
|
||||
el->voice_name = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "api_key")) {
|
||||
if (el->api_key) free(el->api_key);
|
||||
el->api_key = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "model_id")) {
|
||||
if (el->model_id) free(el->model_id);
|
||||
el->model_id = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "similarity_boost")) {
|
||||
if (el->similarity_boost) free(el->similarity_boost);
|
||||
el->similarity_boost = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "stability")) {
|
||||
if (el->stability) free(el->stability);
|
||||
el->stability = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "style")) {
|
||||
if (el->style) free(el->style);
|
||||
el->style = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "use_speaker_boost")) {
|
||||
if (el->use_speaker_boost) free(el->use_speaker_boost);
|
||||
el->use_speaker_boost = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "optimize_streaming_latency")) {
|
||||
if (el->optimize_streaming_latency) free(el->optimize_streaming_latency);
|
||||
el->optimize_streaming_latency = strdup(val);
|
||||
}
|
||||
else if (0 == strcmp(param, "write_cache_file") && switch_true(val)) {
|
||||
el->cache_audio = 1;
|
||||
}
|
||||
else if (0 == strcmp(param, "session-uuid")) {
|
||||
if (el->session_id) free(el->session_id);
|
||||
el->session_id = strdup(val);
|
||||
}
|
||||
}
|
||||
|
||||
static void ell_numeric_param_tts(switch_speech_handle_t *sh, char *param, int val)
|
||||
{
|
||||
}
|
||||
|
||||
static void ell_float_param_tts(switch_speech_handle_t *sh, char *param, double val)
|
||||
{
|
||||
}
|
||||
|
||||
SWITCH_MODULE_LOAD_FUNCTION(mod_elevenlabs_tts_load)
|
||||
{
|
||||
switch_speech_interface_t *speech_interface;
|
||||
|
||||
/* connect my internal structure to the blank pointer passed to me */
|
||||
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
|
||||
speech_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_SPEECH_INTERFACE);
|
||||
speech_interface->interface_name = "elevenlabs";
|
||||
speech_interface->speech_open = ell_speech_open;
|
||||
speech_interface->speech_close = ell_speech_close;
|
||||
speech_interface->speech_feed_tts = ell_speech_feed_tts;
|
||||
speech_interface->speech_read_tts = ell_speech_read_tts;
|
||||
speech_interface->speech_flush_tts = ell_speech_flush_tts;
|
||||
speech_interface->speech_text_param_tts = ell_text_param_tts;
|
||||
speech_interface->speech_numeric_param_tts = ell_numeric_param_tts;
|
||||
speech_interface->speech_float_param_tts = ell_float_param_tts;
|
||||
|
||||
return elevenlabs_speech_load();
|
||||
}
|
||||
|
||||
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_elevenlabs_tts_shutdown)
|
||||
{
|
||||
return elevenlabs_speech_unload();
|
||||
}
|
||||
45
mod_elevenlabs_tts/mod_elevenlabs_tts.h
Normal file
45
mod_elevenlabs_tts/mod_elevenlabs_tts.h
Normal file
@@ -0,0 +1,45 @@
|
||||
#ifndef __MOD_ELEVENLABS_TTS_H__
|
||||
#define __MOD_ELEVENLABS_TTS_H__
|
||||
|
||||
#include <switch.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
struct elevenlabs_data {
|
||||
char *session_id;
|
||||
char *voice_name;
|
||||
char* api_key;
|
||||
char* model_id;
|
||||
char* similarity_boost;
|
||||
char* stability;
|
||||
char* style;
|
||||
char* use_speaker_boost;
|
||||
char* optimize_streaming_latency;
|
||||
|
||||
/* result data */
|
||||
long response_code;
|
||||
char *ct;
|
||||
char *reported_latency;
|
||||
char *request_id;
|
||||
char *history_item_id;
|
||||
char *name_lookup_time_ms;
|
||||
char *connect_time_ms;
|
||||
char *final_response_time_ms;
|
||||
char *err_msg;
|
||||
char *cache_filename;
|
||||
|
||||
int rate;
|
||||
|
||||
void *conn;
|
||||
FILE *file;
|
||||
switch_mutex_t *mutex;
|
||||
void *circularBuffer;
|
||||
int draining;
|
||||
int reads;
|
||||
int cache_audio;
|
||||
};
|
||||
|
||||
typedef struct elevenlabs_data elevenlabs_t;
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user