| 1 | /** |
| 2 | * Copyright (C) 2012 Juho Vähä-Herttua |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | * "Software"), to deal in the Software without restriction, including |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, |
| 8 | * distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | * permit persons to whom the Software is furnished to do so, subject to |
| 10 | * the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included |
| 13 | * in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #include "raopservice.h" |
| 25 | #include "raopcallbackhandler.h" |
| 26 | |
| 27 | #include <QThread> |
| 28 | #include <QDebug> |
| 29 | |
| 30 | #define RSA_KEY \ |
| 31 | "-----BEGIN RSA PRIVATE KEY-----\n"\ |
| 32 | "MIIEpQIBAAKCAQEA59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUt\n"\ |
| 33 | "wC5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDRKSKv6kDqnw4U\n"\ |
| 34 | "wPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuBOitnZ/bDzPHrTOZz0Dew0uowxf\n"\ |
| 35 | "/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJQ+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/\n"\ |
| 36 | "UAaHqn9JdsBWLUEpVviYnhimNVvYFZeCXg/IdTQ+x4IRdiXNv5hEewIDAQABAoIBAQDl8Axy9XfW\n"\ |
| 37 | "BLmkzkEiqoSwF0PsmVrPzH9KsnwLGH+QZlvjWd8SWYGN7u1507HvhF5N3drJoVU3O14nDY4TFQAa\n"\ |
| 38 | "LlJ9VM35AApXaLyY1ERrN7u9ALKd2LUwYhM7Km539O4yUFYikE2nIPscEsA5ltpxOgUGCY7b7ez5\n"\ |
| 39 | "NtD6nL1ZKauw7aNXmVAvmJTcuPxWmoktF3gDJKK2wxZuNGcJE0uFQEG4Z3BrWP7yoNuSK3dii2jm\n"\ |
| 40 | "lpPHr0O/KnPQtzI3eguhe0TwUem/eYSdyzMyVx/YpwkzwtYL3sR5k0o9rKQLtvLzfAqdBxBurciz\n"\ |
| 41 | "aaA/L0HIgAmOit1GJA2saMxTVPNhAoGBAPfgv1oeZxgxmotiCcMXFEQEWflzhWYTsXrhUIuz5jFu\n"\ |
| 42 | "a39GLS99ZEErhLdrwj8rDDViRVJ5skOp9zFvlYAHs0xh92ji1E7V/ysnKBfsMrPkk5KSKPrnjndM\n"\ |
| 43 | "oPdevWnVkgJ5jxFuNgxkOLMuG9i53B4yMvDTCRiIPMQ++N2iLDaRAoGBAO9v//mU8eVkQaoANf0Z\n"\ |
| 44 | "oMjW8CN4xwWA2cSEIHkd9AfFkftuv8oyLDCG3ZAf0vrhrrtkrfa7ef+AUb69DNggq4mHQAYBp7L+\n"\ |
| 45 | "k5DKzJrKuO0r+R0YbY9pZD1+/g9dVt91d6LQNepUE/yY2PP5CNoFmjedpLHMOPFdVgqDzDFxU8hL\n"\ |
| 46 | "AoGBANDrr7xAJbqBjHVwIzQ4To9pb4BNeqDndk5Qe7fT3+/H1njGaC0/rXE0Qb7q5ySgnsCb3DvA\n"\ |
| 47 | "cJyRM9SJ7OKlGt0FMSdJD5KG0XPIpAVNwgpXXH5MDJg09KHeh0kXo+QA6viFBi21y340NonnEfdf\n"\ |
| 48 | "54PX4ZGS/Xac1UK+pLkBB+zRAoGAf0AY3H3qKS2lMEI4bzEFoHeK3G895pDaK3TFBVmD7fV0Zhov\n"\ |
| 49 | "17fegFPMwOII8MisYm9ZfT2Z0s5Ro3s5rkt+nvLAdfC/PYPKzTLalpGSwomSNYJcB9HNMlmhkGzc\n"\ |
| 50 | "1JnLYT4iyUyx6pcZBmCd8bD0iwY/FzcgNDaUmbX9+XDvRA0CgYEAkE7pIPlE71qvfJQgoA9em0gI\n"\ |
| 51 | "LAuE4Pu13aKiJnfft7hIjbK+5kyb3TysZvoyDnb3HOKvInK7vXbKuU4ISgxB2bB3HcYzQMGsz1qJ\n"\ |
| 52 | "2gG0N5hvJpzwwhbhXqFKA4zaaSrw622wDniAK5MlIE0tIAKKP4yxNGjoD2QYjhBGuhvkWKY=\n"\ |
| 53 | "-----END RSA PRIVATE KEY-----\n" |
| 54 | |
| 55 | typedef struct { |
| 56 | QThread * cb_thread; |
| 57 | RaopCallbackHandler * cb_handler; |
| 58 | void * cb_session; |
| 59 | } audio_session_t; |
| 60 | |
| 61 | static void* |
| 62 | audio_init_cb(void *cls, int bits, int channels, int samplerate) |
| 63 | { |
| 64 | audio_session_t *audio_session = 0; |
| 65 | |
| 66 | audio_session = (audio_session_t *)calloc(1, sizeof(audio_session_t)); |
| 67 | audio_session->cb_thread = new QThread(); |
| 68 | audio_session->cb_thread->start(); |
| 69 | |
| 70 | /* This whole hack is required because QAudioOutput |
| 71 | * needs to be created in a QThread, threads created |
| 72 | * outside Qt are not allowed (they have no eventloop) */ |
| 73 | audio_session->cb_handler = new RaopCallbackHandler(); |
| 74 | audio_session->cb_handler->moveToThread(audio_session->cb_thread); |
| 75 | audio_session->cb_handler->init((RaopAudioHandler *)cls); |
| 76 | |
| 77 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioInit", |
| 78 | Qt::BlockingQueuedConnection, |
| 79 | Q_ARG(void*, (void*)&audio_session->cb_session), |
| 80 | Q_ARG(int, bits), |
| 81 | Q_ARG(int, channels), |
| 82 | Q_ARG(int, samplerate)); |
| 83 | return audio_session; |
| 84 | } |
| 85 | |
| 86 | static void |
| 87 | audio_process_cb(void *cls, void *session, const void *buffer, int buflen) |
| 88 | { |
| 89 | Q_UNUSED(cls) |
| 90 | audio_session_t *audio_session = (audio_session_t *)session; |
| 91 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioProcess", |
| 92 | Qt::BlockingQueuedConnection, |
| 93 | Q_ARG(void*, audio_session->cb_session), |
| 94 | Q_ARG(void*, (void*)buffer), |
| 95 | Q_ARG(int, buflen)); |
| 96 | } |
| 97 | |
| 98 | static void |
| 99 | audio_destroy_cb(void *cls, void *session) |
| 100 | { |
| 101 | Q_UNUSED(cls) |
| 102 | audio_session_t *audio_session = (audio_session_t *)session; |
| 103 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioDestroy", |
| 104 | Qt::BlockingQueuedConnection, |
| 105 | Q_ARG(void*, audio_session->cb_session)); |
| 106 | |
| 107 | // Wait until the session thread has finished |
| 108 | audio_session->cb_thread->quit(); |
| 109 | audio_session->cb_thread->wait(); |
| 110 | |
| 111 | // Delete all session variables |
| 112 | delete audio_session->cb_handler; |
| 113 | delete audio_session->cb_thread; |
| 114 | free(audio_session); |
| 115 | } |
| 116 | |
| 117 | static void |
| 118 | audio_flush_cb(void *cls, void *session) |
| 119 | { |
| 120 | Q_UNUSED(cls) |
| 121 | audio_session_t *audio_session = (audio_session_t *)session; |
| 122 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioFlush", |
| 123 | Qt::BlockingQueuedConnection, |
| 124 | Q_ARG(void*, audio_session->cb_session)); |
| 125 | } |
| 126 | |
| 127 | static void |
| 128 | audio_set_volume_cb(void *cls, void *session, float volume) |
| 129 | { |
| 130 | Q_UNUSED(cls) |
| 131 | audio_session_t *audio_session = (audio_session_t *)session; |
| 132 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioSetVolume", |
| 133 | Qt::BlockingQueuedConnection, |
| 134 | Q_ARG(void*, audio_session->cb_session), |
| 135 | Q_ARG(float, volume)); |
| 136 | } |
| 137 | |
| 138 | static void |
| 139 | audio_set_metadata_cb(void *cls, void *session, const void *buffer, int buflen) |
| 140 | { |
| 141 | Q_UNUSED(cls) |
| 142 | audio_session_t *audio_session = (audio_session_t *)session; |
| 143 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioSetVolume", |
| 144 | Qt::BlockingQueuedConnection, |
| 145 | Q_ARG(void*, audio_session->cb_session), |
| 146 | Q_ARG(void*, (void*)buffer), |
| 147 | Q_ARG(int, buflen)); |
| 148 | } |
| 149 | |
| 150 | static void |
| 151 | audio_set_coverart_cb(void *cls, void *session, const void *buffer, int buflen) |
| 152 | { |
| 153 | Q_UNUSED(cls) |
| 154 | audio_session_t *audio_session = (audio_session_t *)session; |
| 155 | QMetaObject::invokeMethod(audio_session->cb_handler, "audioSetVolume", |
| 156 | Qt::BlockingQueuedConnection, |
| 157 | Q_ARG(void*, audio_session->cb_session), |
| 158 | Q_ARG(void*, (void*)buffer), |
| 159 | Q_ARG(int, buflen)); |
| 160 | } |
| 161 | |
| 162 | RaopService::RaopService(QObject *parent) : |
| 163 | QObject(parent), |
| 164 | m_raop(0) |
| 165 | { |
| 166 | } |
| 167 | |
| 168 | RaopService::~RaopService() |
| 169 | { |
| 170 | this->stop(); |
| 171 | raop_destroy(m_raop); |
| 172 | } |
| 173 | |
| 174 | bool RaopService::init(int max_clients, RaopAudioHandler *callbacks) |
| 175 | { |
| 176 | raop_callbacks_t raop_cbs; |
| 177 | |
| 178 | raop_cbs.cls = callbacks; |
| 179 | raop_cbs.audio_init = &audio_init_cb; |
| 180 | raop_cbs.audio_process = &audio_process_cb; |
| 181 | raop_cbs.audio_destroy = &audio_destroy_cb; |
| 182 | raop_cbs.audio_flush = &audio_flush_cb; |
| 183 | raop_cbs.audio_set_volume = &audio_set_volume_cb; |
| 184 | raop_cbs.audio_set_metadata = &audio_set_metadata_cb; |
| 185 | raop_cbs.audio_set_coverart = &audio_set_coverart_cb; |
| 186 | |
| 187 | m_raop = raop_init(max_clients, &raop_cbs, RSA_KEY, 0); |
| 188 | if (!m_raop) { |
| 189 | return false; |
| 190 | } |
| 191 | return true; |
| 192 | } |
| 193 | |
| 194 | void RaopService::setLogLevel(int level) |
| 195 | { |
| 196 | Q_UNUSED(level) |
| 197 | } |
| 198 | |
| 199 | void RaopService::setLogHandler(RaopLogHandler *logger) |
| 200 | { |
| 201 | Q_UNUSED(logger) |
| 202 | } |
| 203 | |
| 204 | bool RaopService::isRunning() |
| 205 | { |
| 206 | return (raop_is_running(m_raop) != 0); |
| 207 | } |
| 208 | |
| 209 | bool RaopService::start(quint16 port, const QByteArray & hwaddr) |
| 210 | { |
| 211 | int ret; |
| 212 | ret = raop_start(m_raop, &port, hwaddr.data(), hwaddr.size(), 0); |
| 213 | if (ret < 0) { |
| 214 | return false; |
| 215 | } |
| 216 | return true; |
| 217 | } |
| 218 | |
| 219 | |
| 220 | void RaopService::stop() |
| 221 | { |
| 222 | if (m_raop) { |
| 223 | raop_stop(m_raop); |
| 224 | } |
| 225 | } |