using LitJson;
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using System;
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using UnityEngine;
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using System.Collections.Generic;
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public class SpeechTranslate : Singleton<SpeechTranslate>
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{
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public const int AUDIO_TIMELIMIT = 8;//秒
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static readonly string serverURL = "http://vop.baidu.com/server_api";
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static string token = "";
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static readonly string apiKey = "qb8RdIh80K9LsGtNS0S1f2b9";
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static readonly string secretKey = "1f6050e7c508e8bb8c598bac1cea067a";
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static readonly string cuid = "123456789";
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bool m_IsGetToken = false;
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public bool gotToken { get { return m_IsGetToken; } }
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bool m_Busy = false;
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public bool busy { get { return m_Busy; } }
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public event Action<int, bool, string> translateResultEvent = null;
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Queue<int> translateQueue = new Queue<int>();
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public void RequestGetToken()
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{
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//var url = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials" + "&client_id=" + apiKey + "&client_secret=" + secretKey;
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//HttpRequest.Instance.RequestHttpGet(url, HttpRequest.defaultHttpContentType, 2, OnGetToken);
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}
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private void OnGetToken(bool _ok, string _result)
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{
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if (_ok)
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{
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if (!string.IsNullOrEmpty(_result))
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{
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JsonData data = JsonMapper.ToObject(_result);
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token = data["access_token"].ToString();
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m_IsGetToken = true;
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}
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}
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}
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public void ReqeustVoiceTranslate(int _voiceInstanceId, byte[] _data)
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{
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if (m_IsGetToken && _data != null)
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{
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JsonData json = new JsonData();
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json["format"] = "wav";
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json["rate"] = VoiceSettings.frequency;
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json["channel"] = 1;
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json["token"] = token;
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json["cuid"] = cuid;
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json["len"] = _data.Length;
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json["speech"] = Convert.ToBase64String(_data);
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translateQueue.Enqueue(_voiceInstanceId);
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HttpRequest.Instance.RequestHttpPost(serverURL, json.ToJson(), HttpRequest.jsonHttpContentType, 1, OnGetTranslateResult);
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Debug.Log("serverURL" + serverURL);
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m_Busy = true;
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}
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}
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private void OnGetTranslateResult(bool _ok, string _result)
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{
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m_Busy = false;
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var instanceId = translateQueue.Dequeue();
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if (!_ok)
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{
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if (translateResultEvent != null)
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{
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translateResultEvent(instanceId, false, string.Empty);
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}
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return;
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}
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JsonData data = JsonMapper.ToObject(_result);
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if (data["err_msg"].ToString() == "success.")
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{
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var content = data["result"][0].ToString();
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if (content.EndsWith("，"))
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{
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content = content.Substring(0, content.Length - 1);
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}
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if (translateResultEvent != null)
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{
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translateResultEvent(instanceId, true, content);
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}
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}
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else
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{
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if (translateResultEvent != null)
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{
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translateResultEvent(instanceId, false, string.Empty);
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}
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Debug.Log("当前声音质量不合格:"+ data["err_msg"].ToString());
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}
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}
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static float[] samples = new float[VoiceSettings.frequency * AUDIO_TIMELIMIT];
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public static byte[] AudioCompress(AudioClip _clip, int _seconds)
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{
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if (_clip == null)
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{
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Debug.LogError("录音数据为空");
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return null;
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}
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_clip.GetData(samples, 0);
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byte[] outData = new byte[VoiceSettings.frequency * _seconds * 2];
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int rescaleFactor = 32767; //to convert float to Int16
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for (int i = 0; i < VoiceSettings.frequency * _seconds; i++)
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{
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short temshort = (short)(samples[i] * rescaleFactor);
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if (temshort == 0)
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{
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outData[i * 2] = 0;
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outData[i * 2 + 1] = 0;
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}
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else
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{
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byte[] temdata = BitConverter.GetBytes(temshort);
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outData[i * 2] = temdata[0];
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outData[i * 2 + 1] = temdata[1];
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}
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}
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if (outData == null || outData.Length <= 0)
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{
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Debug.LogError("录音数据为空");
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return null;
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}
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return outData;
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}
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public void AudioCompress(int _instanceId, AudioClip _clip)
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{
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if (_clip == null || VoiceCodec.IsBusy)
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{
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Debug.LogError("录音数据为空");
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return;
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}
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_clip.GetData(samples, 0);
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var _instance = _instanceId;
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VoiceCodec.Encode(samples, (byte[] encode) =>
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{
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VoiceWarehouse.SaveVoice(_instance, encode);
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});
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}
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}
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