fix wav_recorder error

core/components/audio/wav_recorder.cpp

@@ -5,36 +5,36 @@ using namespace core;
 
 void WavRecorder::writeVoice(string filename, uint32_t sample_rate, uint16_t bits_per_sample, uint16_t num_channels,
                              const char* data, uint32_t size) {
-  ofstream  file;
+  fstream   file;
   WAVHeader wavHeader;
   // logger->info("writeVoice filename:{} {} {} {} {}", filename, sample_rate, bits_per_sample, num_channels, size);
-  file.open(filename, ios::out | ios::binary | ios::app);
-#if 1
-  /**
-   * @brief 判断文件大小，文件大小大于等于44字节，说明文件已经存在，不需要写入头部
-   */
-  file.seekp(0, ios::end);
-  if (file.tellp() < 44) {
+  file.open(filename, fstream::in | fstream::out | fstream::binary);
+  if (!file.is_open()) {
+    file.open(filename, fstream::out | fstream::binary | fstream::trunc);
     wavHeader.initialize(sample_rate, bits_per_sample, num_channels, 0);
     file.seekp(0, ios::beg);
     file.write((char*)wavHeader.data(), wavHeader.size());
+    file.close();
+    file.open(filename, fstream::in | fstream::out | fstream::binary);
   }
+
+  // file.write(data, size);
+#if 1
+  /**
+   * @brief 判断文件大小，文件大小大于等于44字节，说明文件已经存在，不需要写入头部
+   */
   file.seekp(0, ios::end);
   file.write(data, size);
   /**
    * @brief 更新头部信息
    */
-  {
-    file.seekp(0, ios::end);
-    uint32_t filesize = file.tellp();
-
-    file.seekp(4, ios::beg);
-    uint32_t chunk_size = filesize - 8;
-    file.write((char*)&chunk_size, 4);
-    file.seekp(40, ios::beg);
-    uint32_t subchunk2_size = filesize - 44;
-    file.write((char*)&subchunk2_size, 4);
-  }
+  uint32_t filesize = file.tellp();
+  file.seekp(4, ios::beg);
+  uint32_t chunk_size = filesize - 8;
+  file.write((char*)&chunk_size, 4);
+  file.seekp(40, ios::beg);
+  uint32_t subchunk2_size = filesize - 44;
+  file.write((char*)&subchunk2_size, 4);
 #endif
 
   file.close();