优化。

InterphoneHandler.py

@@ -7,6 +7,8 @@ import urequests
 from machine import Pin, I2S
 import ubinascii
 import urandom
+import select
+import gc
 
 import shared_vars
 
@@ -21,19 +23,22 @@ def init_i2s():
               sd=Pin(shared_vars.SD_PIN),   # Serial data output
               mode=I2S.TX,  # 使用发送模式
               bits=shared_vars.BITS_PER_SAMPLE,  # 修改为 16 位数据
-              format=I2S.MONO if shared_vars.CHANNELS == 1 else I2S.STEREO,  # 修正声道判断逻辑
+              format=I2S.MONO if shared_vars.CHANNELS == 1 else I2S.STEREO,  # 声道判断逻辑
               rate=shared_vars.SAMPLE_RATE,    # 采样率
               ibuf=shared_vars.BUFFER_SIZE)    # 输入缓冲区大小
     return i2s
 
 class InterphoneHandler:
+    def __init__(self):
+        self.audio_out = None  # 全局 I2S 实例
 
     def play_wav_file(self, data):
         try:
             # 要播放的本地 WAV 文件
             WAV_FILE = data['file']
             # 初始化 I2S 接口
-            audio_out = init_i2s()
+            if not self.audio_out:
+                self.audio_out = init_i2s()
 
             # 打开 WAV 文件
             with open(WAV_FILE, 'rb') as f:
@@ -46,70 +51,78 @@ class InterphoneHandler:
                         break
                     # 将音频数据写入 I2S 接口
                     print('将音频数据写入 I2S 接口')
-                    audio_out.write(data)
+                    self.audio_out.write(data)
 
         except Exception as e:
             print(f"播放音频时出错: {e}")
         finally:
-            if 'audio_out' in locals():
-                audio_out.deinit()
+            if self.audio_out:
+                self.audio_out.deinit()
+                self.audio_out = None
 
     def stream_and_play(self, data):
-        shared_vars.player_name = data['voice_url']
-        url = data['voice_url']   # 替换为音频文件的URL
-        volume = data.get('volume', 1.0)  # 从 data 中读取音量信息，默认值为 1.0（原始音量）
+        # 停止之前的播放
+        self.stop_playing(data)
+        gc.collect()  # 强制回收内存
+        shared_vars.player_name = url = data['voice_url']
+        volume = data.get('volume', 1.0)
         print(f"播放音频 URL: {url}, 音量: {volume}")
         time.sleep(1)
         shared_vars.player_flag = True
-        try:
-            print("添加请求头信息")
-            headers = {
-                'User-Agent': 'MicroPython v1.0.0'
-            }
-            print("发送 HTTP 请求，获取流式响应")
-            response = urequests.get(url, headers=headers, stream=True)
 
-            print("检查响应状态码")
+        try:
+            headers = {'User-Agent': 'MicroPython v1.0.0'}
+            print("发送 HTTP 请求，获取流式响应")
+            response = urequests.get(url, headers=headers, stream=True, timeout=5)
+
             if response.status_code != 200:
                 print(f"请求失败，状态码: {response.status_code}")
                 response.close()
                 return
-            print("解析 WAV 头部")
-            header = response.raw.read(44)
 
+            header = response.raw.read(44)
             if len(header) != 44 or header[0:4] != b'RIFF' or header[8:12] != b'WAVE' or header[12:16] != b'fmt ':
-                print(header)
                 raise ValueError("Not a valid WAV file")
 
-            print("提取采样率、位深、声道数")
+            # 提取采样率、位深、声道数
             shared_vars.SAMPLE_RATE = int.from_bytes(header[24:28], 'little')
             shared_vars.BITS_PER_SAMPLE = int.from_bytes(header[34:36], 'little')
             shared_vars.CHANNELS = int.from_bytes(header[22:24], 'little')
 
+            # 初始化或重用 I2S 输出
             print("初始化 I2S 输出")
-            audio_out = init_i2s()
+            self.audio_out = init_i2s()
+
             print("开始流式播放")
             chunk_size = 128
+            sock = response.raw
             while shared_vars.player_flag and shared_vars.player_name == data['voice_url']:
-                chunk = response.raw.read(chunk_size)
-                if not chunk:
+                r, _, _ = select.select([sock], [], [], 5)  # 设置超时时间为 5 秒
+                if r:
+                    chunk = sock.read(chunk_size)
+                    if not chunk:
+                        break
+                    self.audio_out.write(chunk)
+                else:
+                    print("读取超时")
                     break
-                audio_out.write(chunk)
 
         except Exception as e:
             print("Playback error:", e)
         finally:
-            if 'audio_out' in locals():
-                audio_out.deinit()
             if 'response' in locals():
                 response.close()
+            if 'sock' in locals():
+                sock.close()
             shared_vars.player_flag = False
-            print('音频播放完成')
+            gc.collect()
+            print('音频播放结束，清理资源')
 
     def stop_playing(self, data):
         shared_vars.player_flag = False
         print("停止播放音频")
-        pass
+        if self.audio_out:
+            self.audio_out.deinit()
 
     def get_playing_status(self, data):
         status = {
@@ -118,3 +131,4 @@ class InterphoneHandler:
         }
         print(f"获取播放状态: {status}")
         return status
+

SingletonThreadPool.py

@@ -7,7 +7,7 @@ class SingletonThreadPool:
 
     def __new__(cls):
         if not cls._instance:
-            pool_size = 2
+            pool_size = 3
             cls._instance = super().__new__(cls)
             cls._instance.pool_size = pool_size
             cls._instance.task_queue = []
@@ -24,7 +24,6 @@ class SingletonThreadPool:
                 task, args = self.task_queue.pop(0)
                 self.pool_lock.release()
                 try:
-                    gc.collect()
                     task(*args)
                 except Exception as e:
                     print(f"Task execution error: {e}")