备份CatanBuilding瘦身独立工程

LocalPackages/rtm-sdk-unity-2.7.20/Runtime/Plugins/rtm/RTMAudioData.cs

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+using System;
+using System.Collections.Generic;
+using com.fpnn.msgpack;
+
+namespace com.fpnn.rtm
+{
+    public class InvalidAudioDataException : Exception
+    {
+        public InvalidAudioDataException(string message) : base(message) { }
+        public InvalidAudioDataException(String message, Exception ex) : base(message, ex) { }
+    }
+
+    public class RTMAudioData
+    {
+
+        public static string DefaultCodec = "amr-wb";
+        private string codecType;
+        private string lang;
+        private readonly byte[] audio;  // Current is AMR-WB
+        private float[] pcmData;  // Original PCM data
+        private long duration;   // Duration in ms
+        private int frequency;
+        private int lengthSamples;
+
+        public RTMAudioData(byte[] audio, float[] pcmData, string codecType, string lang, long duration, int lengthSamples, int frequency)
+        {
+            this.audio = audio;
+            this.pcmData = pcmData;
+            this.codecType = codecType;
+            this.lang = lang;
+            this.duration = duration;
+            this.lengthSamples = lengthSamples;
+            this.frequency = frequency;
+        }
+
+        public RTMAudioData(byte[] audio, FileInfo fileInfo)
+        {
+            codecType = DefaultCodec;
+            lang = fileInfo.language;
+            duration = fileInfo.duration;
+            this.audio = audio;
+            frequency = AudioRecorder.RECORD_SAMPLE_RATE;
+            ParseAudioData();
+        }
+
+        public RTMAudioData(byte[] audio, string language, long duration)
+        {
+            codecType = DefaultCodec;
+            lang = language;
+            this.duration = duration;
+            this.audio = audio;
+            frequency = AudioRecorder.RECORD_SAMPLE_RATE;
+            ParseAudioData();
+        }
+
+        private void ParseAudioData()
+        {
+            byte[] wavBuffer = AudioConvert.ConvertToWav(audio);
+
+            if (wavBuffer == null || wavBuffer.Length < 23)
+            {
+                throw new InvalidAudioDataException("Invalid audio data, convert failed.");
+            }
+
+            int channelCount = wavBuffer[22];
+            
+            int pos = 12; 
+            
+            while(! (wavBuffer.Length > pos+3 && wavBuffer[pos] == 100 && wavBuffer[pos+1] == 97 && wavBuffer[pos+2] == 116 && wavBuffer[pos+3] == 97)) {
+                pos += 4;
+                int chunkSize = wavBuffer[pos] + wavBuffer[pos + 1] * 256 + wavBuffer[pos + 2] * 65536 + wavBuffer[pos + 3] * 16777216;
+                pos += 4 + chunkSize;
+            }
+            pos += 8;
+            
+            lengthSamples = (wavBuffer.Length - pos) /2 ;
+            
+            pcmData = new float[lengthSamples];
+            
+            int idx = 0;
+            while (pos < wavBuffer.Length) {
+                pcmData[idx] = BytesToFloat(wavBuffer[pos], wavBuffer[pos + 1]);
+                pos += 2;
+                idx++;
+            }
+        }
+
+        private static float BytesToFloat(byte firstByte, byte secondByte) {
+            short s = (short)((secondByte << 8) | firstByte);
+            return s / 32768.0F;
+        }
+
+        public byte[] Audio
+        {
+            get
+            {
+                return audio;
+            }
+        }
+
+        public float[] PcmData
+        {
+            get
+            {
+                return pcmData;
+            }
+        }
+
+        public long Duration
+        {
+            get
+            {
+                return duration;
+            }
+        }
+
+        public string Language
+        {
+            get
+            {
+                return lang;
+            }
+        }
+
+        public string CodecType
+        {
+            get
+            {
+                return codecType;
+            }
+        }
+
+        public int LengthSamples
+        {
+            get
+            {
+                return lengthSamples;
+            }
+        }
+
+        public int Frequency
+        {
+            get
+            {
+                return frequency;
+            }
+        }
+    }
+}