update: 恢复唤醒播放机制，待优化和改造（目前只有linkerai拥有正常保存唤醒音频to_tts）

main/xiaozhi-server/core/utils/util.py

@@ -1,16 +1,17 @@
-import json
-import socket
-import subprocess
 import re
 import os
-from io import BytesIO
-from typing import Callable, Any
-from core.utils import p3
-import numpy as np
-import requests
-import opuslib_next
-from pydub import AudioSegment
+import json
+import wave
 import copy
+import socket
+import requests
+import subprocess
+import numpy as np
+import opuslib_next
+from io import BytesIO
+from core.utils import p3
+from pydub import AudioSegment
+from typing import Callable, Any
 
 TAG = __name__
 emoji_map = {
@@ -274,6 +275,33 @@ def pcm_to_data_stream(raw_data, is_opus=True, callback: Callable[[Any], Any] =
             callback(frame_data)
 
 
+def opus_datas_to_wav_bytes(opus_datas, sample_rate=16000, channels=1):
+    """
+    将opus帧列表解码为wav字节流
+    """
+    decoder = opuslib_next.Decoder(sample_rate, channels)
+    pcm_datas = []
+
+    frame_duration = 60  # ms
+    frame_size = int(sample_rate * frame_duration / 1000)  # 960
+
+    for opus_frame in opus_datas:
+        # 解码为PCM（返回bytes，2字节/采样点）
+        pcm = decoder.decode(opus_frame, frame_size)
+        pcm_datas.append(pcm)
+
+    pcm_bytes = b"".join(pcm_datas)
+
+    # 写入wav字节流
+    wav_buffer = BytesIO()
+    with wave.open(wav_buffer, "wb") as wf:
+        wf.setnchannels(channels)
+        wf.setsampwidth(2)  # 16bit
+        wf.setframerate(sample_rate)
+        wf.writeframes(pcm_bytes)
+    return wav_buffer.getvalue()
+
+
 def check_vad_update(before_config, new_config):
     if (
         new_config.get("selected_module") is None