/// <summary>

    /// 语音【文件、上传、解码、保存（WAV）】

    /// </summary>

    [DeveloperEx("Liwei:秘书语音需求单")]

    public class AudioController : ClubBaseController

    {

        #region Android和IOS的一些音频参数

           /****************

           //格式

           #define NAOMI_SPEEX_FORMAT kAudioFormatLinearPCM

           //采样

           #define NAOMI_SPEEX_RATE 8000

           //声道

           #define NAOMI_SPEEX_NUMBER_CHANNEL 1

           //采样位数

           #define NAOMI_SPEEX_BITDEPTH 16

           private static final int FREQUENCY = 8000;

           private static final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;

           private static final int CHANNEL = AudioFormat.CHANNEL_IN_MONO;//0x10

        ***************/

        #endregion

        private ILogProvider log = LogFactory.Create();

        private FileStream fileStream = null;

        private BinaryWriter binaryWriter = null;

        /// <summary>

        /// PCM To WAV

        /// 添加Wav头文件

        /// </summary>

        [NonAction]

        private void CreateSoundFile(string path)

        {

            fileStream = new FileStream(path, FileMode.Create);

            binaryWriter = new BinaryWriter(fileStream);

            //Set up file with RIFF chunk info. 每个WAVE文件的头四个字节便是“RIFF”。

            char[] ChunkRiff = { 'R', 'I', 'F', 'F' };

            char[] ChunkType = { 'W', 'A', 'V', 'E' };

            char[] ChunkFmt = { 'f', 'm', 't', ' ' };

            char[] ChunkData = { 'd', 'a', 't', 'a' };

            short shPad = ;                 // File padding

            int nFormatChunkLength = 0x10;   // Format chunk length.

            int nLength = ;                 // File length, minus first 8 bytes of RIFF description. This will be filled in later.

            short bitsPerSample = ;     //每个采样需要的bit数

            //short khCaiYang = 8000;       //16KHz 采样频率

            //short bitSecondRate = 16000;  //-每秒所需字节数

            short channels = ;           //声道数目，1-- 单声道；2-- 双声道

            short shBytesPerSample = ;   //一个样本点的字节数目  

            //------- RIFF 块 -------

            binaryWriter.Write(ChunkRiff);

            binaryWriter.Write(nLength);

            binaryWriter.Write(ChunkType);

            //------- WAVE块 ---------

            binaryWriter.Write(ChunkFmt);

            binaryWriter.Write(nFormatChunkLength);

            binaryWriter.Write(shPad);

            binaryWriter.Write(channels);         //Mono,声道数目，1-- 单声道；2-- 双声道

            binaryWriter.Write();             //16KHz 采样频率

            binaryWriter.Write();            //每秒所需字节数

            binaryWriter.Write(shBytesPerSample); //数据块对齐单位(每个采样需要的字节数)

            binaryWriter.Write(bitsPerSample);    //16Bit,每个采样需要的bit数    

            //------- 数据块 ---------

            binaryWriter.Write(ChunkData);

            binaryWriter.Write((int));   // The sample length will be written in later.

        }

        /// <summary>

        ///【上传、保存、PCM源数据文件】

        /// </summary>

        [AllowAnonymous]

        public ResponseModel UploadAudio()

        {

            try

            {

                //-------上传文件---------

                var hash = CommonUpload("/UploadAudio/", (string i) =>

                {

                    i = Guid.NewGuid().ToString("n");

                    return i;

                }, isFile: true);

                if (hash["retInt"].Equals(""))

                {

                    string uploadPcmFile = hash["retSrc"].ToString();

                    //--------获取pcm的文件名------------

                    string pcmFileName = uploadPcmFile.Substring(, uploadPcmFile.IndexOf(Path.GetExtension(uploadPcmFile)));

                    string wavFile = pcmFileName + ".wav";

                    string physicPCMPath = hash["retSrcDirPath"].ToString();

                    string tempWavPath = Path.Combine(HttpContext.Current.Server.MapPath(physicPCMPath), wavFile);

                    //--------添加wav文件头-----

                    CreateSoundFile(tempWavPath);

                    #region 读取上传的PCM源文件

                    string fileName = Path.Combine(HttpContext.Current.Server.MapPath(physicPCMPath), uploadPcmFile);

                    FileInfo fileinfo = new FileInfo(fileName);

                    FileStream fs = fileinfo.OpenRead();

                    int length = (int)fs.Length;

                    byte[] bytes = new byte[length];

                    fs.Read(bytes, , length);

                    fs.Close();

                    fs.Dispose();

                    #endregion

                    #region  向WAV音频中写入数据

                    binaryWriter.Write(bytes, , bytes.Length);

                    binaryWriter.Seek(, SeekOrigin.Begin);

                    binaryWriter.Write((int)(bytes.Length + )); // 写文件长度

                    binaryWriter.Seek(, SeekOrigin.Begin);

                    binaryWriter.Write(bytes.Length);

                    fileStream.Close();

                    #endregion

                    //----------删除用户PCM的源文件---------------

                    if (System.IO.File.Exists(fileName))

                    {

                        FileInfo fi = new FileInfo(fileName);

                        if (fi.Attributes.ToString().IndexOf("ReadOnly") != -)

                            fi.Attributes = FileAttributes.Normal;

                        System.IO.File.Delete(fileName);

                    }

                    return SetOfMessage(data: new { filename = base.domainSite + physicPCMPath + wavFile });

                }

                else

                {

                    return SetOfMessage(status: , message: hash["retMsg"].ToString());

                }

            }

            catch (Exception ex)

            {

                log.Log(LogLevel.Info, "上传语音出错误了!", ex.Message);

                //--------记录日志-------------

                return SetOfMessage(data: null, message: "语音上传出现错误了!", status: ); ;

            }

            finally

            {

                if (fileStream != null)

                {

                    fileStream.Close();

                }

            }

        }