### PJSUA2 Python3 自动拨号与播放多个音频文件的完整代码示例 以下是基于 PJSIP 2.15 和 Python3 的 `pjsua2` 实现自动拨号、播放多个音频文件以及检测播放完成状态的完整代码示例。此代码利用了 PJSIP 提供的核心功能来管理呼叫和媒体流。 #### 初始化 Endpoint 并设置日志级别 ```python import sys from pjsua2 import * class MyAccount(Account): pass class MyCall(Call): def __init__(self, acc, peer_uri=""): super().__init__(acc) self.peerUri = peer_uri self.playback_completed = False def log_callback(level, str, len): print(str) ep = Endpoint() cfg = EpConfig() # 设置日志配置 log_cfg = LogConfig() log_cfg.consoleLevel = 4 log_cfg.fileLogLevel = 4 cfg.logConfig = log_cfg try: ep.libInit(cfg) # 初始化 Endpoint 配置[^4] except Error as e: print(f"Error initializing library: {e.info()}") sys.exit(1) factory = AudioMediaPlayerFactory() ``` #### 创建 SIP 账户并拨打目标号码 ```python transport_config = TransportConfig() transport_config.port = 5060 ep.transportCreate(PJSIP_TRANSPORT_UDP, transport_config) # 创建传输通道[^4] ep.libStart() # 启动 Endpoint local_account_id = "sip:alice@localhost" remote_peer_uri = "sip:bob@localhost" account_config = AccountConfig() account_config.idUri = local_account_id account_config.regConfig.registrarUri = "sip:localhost" cred = account_config.sipConfig.authCreds.create cred.setUsername("alice").setDataScheme("digest") setRealm("*").setPassword("secret") my_acc = MyAccount() my_acc.create(account_config) call_settings = CallSettings() call_settings.flag |= CS_NO_SDP_SESSION # 不发送 SDP 会话信息 my_call = MyCall(my_acc, remote_peer_uri) my_call.callMakeCall(remote_peer_uri, call_settings) # 发起呼叫[^4] ``` #### 播放多个音频文件并监听回调事件 ```python audio_files = ["file1.wav", "file2.wav"] current_file_index = 0 player = None def on_media_state_changed(call_slot_info): global player, current_file_index if not call_slot_info.active: return if player is None or player.getState() == MediaPlayerState.IDLE: if current_file_index >= len(audio_files): my_call.hangup() # 结束通话 return file_path = audio_files[current_file_index] player = factory.createPlayer(file_path, None) player.startTransmit(my_call.getMedia().getSendPort()) current_file_index += 1 my_call.setCallback(on_media_state_changed) # 注册媒体状态变化回调函数[^4] ``` #### 主循环处理逻辑 ```python while True: try: ep.handleEvents() # 处理事件队列中的消息[^4] except KeyboardInterrupt: break if player and player.getState() != MediaPlayerState.IDLE: player.stopTransmit() ep.libDestroy() # 销毁 Endpoint[^4] ``` --- ###