Merge branch 'talk_flutter' of gitee.com:starlock-cn/app-starlock into talk_flutter

star_lock/lib/talk/call/callTalk.dart

@@ -41,22 +41,19 @@ class CallTalk {
   CallTalk get manager => _share();
 
   Future<void> getAVData(Uint8List bb, int len) async {
-    //视频数据
-    // String hexData =
-    //     '5858584349449601075439415f396333613730323264346364a5a5a5a5c0a809a3503138363832313530323337000000000000000030303030420e000002000000b33300001f000100b301b301ffd8ffe000114a4649460001010000';
-    // Uint8List bb = Uint8List.fromList(hex.decode(hexData));
-    //音频数据
-    // String hexData =
-    //     '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';
-    // Uint8List bb = Uint8List.fromList(hex.decode(hexData));
-
     // 音频数据
     if (bb[61] == 1) {
-      print('dinglingling音频数据来啦啦啦啦啦啦啦啦啦');
+      print('dinglingling音频数据来啦啦啦啦啦啦啦啦啦$bb');
       // 用你的711音频数据替换这里的Uint8List
-      Uint8List rawData = G711Decoder().decodeG711uLaw(bb);
-      _playRawData(rawData);
-      print('收到音频数据了');
+      // Uint8List rawData = G711Decoder().decodeG711uLaw(bb);
+      // 示例 G711 数据（u-law 或 a-law）
+      Uint8List g711Data = bb;
+      // 解码为 PCM 数据
+      Uint8List pcmData = G711Decoder().g711Decode(g711Data, G711Type.uLaw);
+      // 现在你可以使用 pcmData 进行播放或其他处理
+      print('得到的pcmData:$pcmData');
+
+      _playRawData(pcmData);
     }
     // 视频数据
     else {

star_lock/lib/talk/call/g711Decoder.dart

@@ -1,44 +1,36 @@
 import 'dart:typed_data';
 
-class G711Decoder {
-  // G.711 µ-law解码
-  Uint8List decodeG711uLaw(Uint8List data) {
-    List<int> decodedData = [];
+enum G711Type {
+  uLaw,
+  aLaw,
+}
 
-    for (int i = 0; i < data.length; i++) {
-      int sample = _decodeG711uLawSample(data[i]);
-      decodedData.add(sample);
+class G711Decoder {
+  Uint8List g711Decode(Uint8List g711Data, G711Type g711Type) {
+    List<int> pcmData = [];
+    int sign, exponent, mantissa, sample;
+
+    for (int i = 0; i < g711Data.length; i++) {
+      int value = g711Data[i];
+
+      if (g711Type == G711Type.uLaw) {
+        // μ-law decoding
+        value = ~value & 0xFF;
+        sign = (value & 0x80) == 0 ? 1 : -1;
+        exponent = (value & 0x70) >> 4;
+        mantissa = ((value & 0x0F) << 4) + 0x10;
+        sample = (mantissa << exponent) * sign;
+      } else {
+        // A-law decoding
+        sign = (value & 0x80) == 0 ? 1 : -1;
+        exponent = ((value & 0x70) >> 4) + 1;
+        mantissa = (value & 0x0F) + 0x10;
+        sample = (mantissa << exponent) * sign;
+      }
+
+      pcmData.add(sample);
     }
 
-    return Uint8List.fromList(decodedData);
-  }
-
-  // G.711 µ-law样本解码
-  int _decodeG711uLawSample(int uLawByte) {
-    const int bias = 0x84;
-    const int mask = 0x7F;
-
-    uLawByte = ~uLawByte;
-    int sign = uLawByte & 0x80;
-    int exponent = (uLawByte & 0x70) >> 4;
-    int mantissa = uLawByte & 0x0F;
-
-    int sample = ((bias << exponent) + mantissa) * (sign == 0 ? 1 : -1);
-
-    return sample & mask; // 防止溢出
+    return Uint8List.fromList(pcmData);
   }
 }
-
-void main() {
-  G711Decoder g711Decoder = G711Decoder();
-
-  // 假设 g711Data 是G.711 µ-law编码的数据
-  Uint8List g711Data =
-      Uint8List.fromList([/* your G.711 µ-law encoded data */]);
-
-  // 解码
-  List<int> decodedData = g711Decoder.decodeG711uLaw(g711Data);
-
-  // 处理解码后的数据，例如播放音频
-  print(decodedData);
-}

star_lock/lib/talk/call/g711Encode.dart

@@ -0,0 +1,36 @@
+import 'dart:typed_data';
+
+enum G711Type {
+  uLaw,
+  aLaw,
+}
+
+class G711Decoder {
+  Uint8List g711Encode(Uint8List pcmData, G711Type g711Type) {
+    List<int> g711Data = [];
+
+    for (int sample in pcmData) {
+      int sign = (sample < 0) ? 0x80 : 0;
+      int magnitude = (sample < 0) ? -sample : sample;
+
+      int exponent = 7;
+      while (magnitude < (1 << exponent) && exponent > 0) {
+        exponent--;
+      }
+
+      int mantissa = (magnitude >> (exponent - 4)) & 0x0F;
+
+      if (g711Type == G711Type.uLaw) {
+        // μ-law encoding
+        int value = ~(sign | ((exponent << 4) & 0x70) | (mantissa >> 4));
+        g711Data.add(value & 0xFF);
+      } else {
+        // A-law encoding
+        int value = sign | ((exponent << 4) & 0x70) | (mantissa >> 4);
+        g711Data.add(value & 0xFF);
+      }
+    }
+
+    return Uint8List.fromList(g711Data);
+  }
+}