Audio input streaming溢出,导致异常发生(转)

本文介绍了一种在Symbian系统中使用CMdaAudioInputStream进行录音时出现的E32User-CBase49错误,并提供了通过重用缓冲区来避免此问题的方法。

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 KIS000156
设备, 软件 版本: Series 60 Developer Platform 2nd Edition, Nokia 6600, version 3.42.1
大类: Symbian C++
子类: 普通
说明:
当录音到最后一个buffer完成时会因为CMdaAudioInputStream导致异常发生。
CMdaAudioInputStream会引发E32User-CBase 49错误。在KErrOverflow错误发生时,MMdaAudioInputStreamCallback::MaiscRecordComplete()
会被调用。
解决方法,可以通过重用buffer来避免这个问题,请参考Series 60 Developer Platform 2.0: Audio Streaming Example v1.0一文获取更多资料。

# server.py import socket import os from funasr import AutoModel import pyaudio import wave import pickle class AudioRecognizer: def __init__(self, model_path, start_music_path, end_music_path): self.model = AutoModel(model=model_path, disable_update=True) self.start_music_path = start_music_path self.end_music_path = end_music_path print("Model loaded successfully") def recognize_audio(self, record_time, save_file): CHUNK = 1024 FORMAT = pyaudio.paInt16 CHANNELS = 2 RATE = 16000 # 播放开始录音的提示音 os.system(f'mplayer {self.start_music_path}') p = pyaudio.PyAudio() print("ON") if os.path.exists(save_file): os.remove(save_file) stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, frames_per_buffer=CHUNK) frames = [] for i in range(0, int(RATE / CHUNK * record_time)): data = stream.read(CHUNK) frames.append(data) print("OFF") stream.stop_stream() stream.close() p.terminate() # 播放结束录音的提示音 os.system(f'mplayer {self.end_music_path}') wf = wave.open(save_file, 'wb') wf.setnchannels(CHANNELS) wf.setsampwidth(p.get_sample_size(FORMAT)) wf.setframerate(RATE) wf.writeframes(b''.join(frames)) wf.close() print("Starting recognition") res = self.model.generate(input=save_file) result = res[0].get('text', '默认值') print(result) return result def main(): # 创建一个 socket 对象 server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 绑定到一个地址和端口 server_socket.bind(('localhost', 12345)) # 开始监听 server_socket.listen(1) print("Server is listening on port 12345") # 模型路径和提示音路径 model_path = "/home/abot/hlj_ws/src/robot_slam/scripts/paraformer-zh" start_music_path = "/home/abot/hlj_ws/src/robot_slam/scripts/比赛开始.mp3" end_music_path = "/home/abot/hlj_ws/src/robot_slam/scripts/比赛结束.mp3" recognizer = AudioRecognizer(model_path, start_music_path, end_music_path) while True: try: # 接受客户端的连接 client_socket, addr = server_socket.accept() print(f"Connected by {addr}") # 接收客户端发送的数据 data = client_socket.recv(1024) if not data: client_socket.close() continue # 解析客户端请求 request = pickle.loads(data) record_time = request.get('record_time', 5) save_file = request.get('save_file', 'test.wav') # 执行音频识别 result = recognizer.recognize_audio(record_time, save_file) # 将结果发送回客户端 client_socket.sendall(pickle.dumps(result)) # 关闭客户端连接 client_socket.close() except Exception as e: print(f"Error occurred: {e}") # 继续监听新的连接 continue # 关闭服务器 socket server_socket.close() if __name__ == '__main__': main() ,依据这些方法帮我修改一下这个代码
05-31
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