using SevenZipEx;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using UnityEngine;
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public static class VoiceCodec
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{
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public static bool IsBusy { get; private set; }
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public static void Encode(float[] samples, Action<byte[]> callback)
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{
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//if (IsBusy)
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//{
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// return;
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//}
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//IsBusy = true;
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//var results = OpusNative.opus_encode_native(samples);
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//Debug.LogError("opus编码：" + results.Length);
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//IsBusy = false;
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//Debug.Log(results.Length);
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//if (callback != null)
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//{
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// callback(results);
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//}
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}
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public static void Decode(byte[] _bytes, Action<float[]> callback)
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{
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//Debug.LogError("opus解码：" + _bytes.Length);
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//float[] samples = OpusNative.opus_decode_native(_bytes);
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//if (callback != null)
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//{
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// callback(samples);
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//}
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}
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}
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public static class VoiceConvert
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{
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static short[] s_pcm = new short[VoiceSettings.frequency * VoiceSettings.length];
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public static short[] SamplesToShorts(float[] samples)
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{
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for (int i = 0; i < samples.Length; i++)
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{
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float s = samples[i];
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if (Mathf.Abs(s) > 1.0f)
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{
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s = s > 0 ? 1.0f : -1.0f;
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}
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float c = s * 3267.0f;
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s_pcm[i] = (short)c;
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}
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return s_pcm;
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}
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public static float[] ShortsToSamples(short[] data)
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{
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float[] samples = new float[data.Length];
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for (int i = 0; i < samples.Length; i++)
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{
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int c = (int)data[i];
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samples[i] = ((float)c / 3267.0f) * 4f;
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}
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return samples;
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}
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}
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public static class VoiceCompress
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{
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public static byte[] SevenZipCompress(byte[] _input)
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{
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CoderPropID[] ids =
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{
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CoderPropID.DictionarySize,
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CoderPropID.PosStateBits,
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CoderPropID.LitContextBits,
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CoderPropID.LitPosBits,
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CoderPropID.Algorithm,
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CoderPropID.NumFastBytes,
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CoderPropID.MatchFinder,
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CoderPropID.EndMarker
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};
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object[] properties =
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{
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(int)(23),
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(int)(2),
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(int)(3),
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(int)(2),
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(int)(1),
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(int)(128),
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(string)("bt4"),
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(bool)(true)
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};
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var encoder = new SevenZipEx.Compression.LZMA.Encoder();
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encoder.SetCoderProperties(ids, properties);
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MemoryStream msIn = new MemoryStream(_input);
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using (MemoryStream msOut = new MemoryStream())
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{
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encoder.WriteCoderProperties(msOut);
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encoder.Code(msIn, msOut, -1, -1, null);
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msIn.Dispose();
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msIn.Close();
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return msOut.ToArray();
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}
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}
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public static byte[] SevenZipDecompress(byte[] _input)
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{
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CoderPropID[] ids =
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{
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CoderPropID.DictionarySize,
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CoderPropID.PosStateBits,
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CoderPropID.LitContextBits,
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CoderPropID.LitPosBits,
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CoderPropID.Algorithm,
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CoderPropID.NumFastBytes,
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CoderPropID.MatchFinder,
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CoderPropID.EndMarker
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};
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object[] properties =
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{
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(int)(23),
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(int)(2),
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(int)(3),
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(int)(2),
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(int)(1),
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(int)(128),
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(string)("bt4"),
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(int)(0)
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};
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var dec = new SevenZipEx.Compression.LZMA.Decoder();
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byte[] prop = new byte[5];
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Array.Copy(_input, prop, 5);
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dec.SetDecoderProperties(prop);
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MemoryStream msInp = new MemoryStream(_input);
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msInp.Seek(5, SeekOrigin.Current);
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MemoryStream msOut = new MemoryStream();
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dec.Code(msInp, msOut, -1, -1, null);
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return msOut.ToArray();
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}
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}
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