//bool CopyMemoryToFile(MemoryStream ms, string fileName)
//{
// if (File.Exists(fileName))
// {
// FileStream fs = null;
// try
// {
// fs = new FileStream(fileName, FileMode.Open);
// }
// catch (Exception ex)
// {
// LogHelper.Error(string.Format("打开文件{0}时错误.", fileName), ex);
// return false;
// }
// int fsLength = (int)fs.Length;
// int msLength = (int)ms.Length;
// byte[] buffer = new byte[fsLength];
// fs.Seek(40, SeekOrigin.Begin);
// fs.Read(buffer, 0, buffer.Length);
// fs.Close();
// byte[] header = createWavHeader(fsLength + msLength);
// fs = new FileStream(fileName, FileMode.Create);
// fs.Write(header, 0, header.Length);
// fs.Write(buffer, 0, buffer.Length);
// buffer = new byte[ms.Length];
// ms.Read(buffer, 0, buffer.Length);
// fs.Write(buffer, 0, buffer.Length);
// buffer = null;
// header = null;
// ms.Close();
// fs.Close();
// ms.Dispose();
// fs.Dispose();
// }
// else
// {
// FileStream fs = new FileStream(fileName, FileMode.Create);
// byte[] header = createWavHeader((int)ms.Length);
// fs.Write(header, 0, header.Length);
// byte[] buffer = new byte[ms.Length];
// ms.Read(buffer, 0, buffer.Length);
// fs.Write(buffer, 0, buffer.Length);
// buffer = null;
// header = null;
// ms.Close();
// fs.Close();
// ms.Dispose();
// fs.Dispose();
// }
// return true;
//}
/// <summary>
/// 获取双声道
/// </summary>
/// <returns></returns>
//public MemoryStream GetDoubleChannelStream(IList list)
//{
// try
// {
// MemoryStream pcmStream = this.ToPcm(list);
// MemoryStream doubleChannelStream = this.DoubleChannelStream(pcmStream);
// return doubleChannelStream;
// }
// catch (Exception ex)
// {
// LogHelper.Error("译码过程出错.", ex);
// return null;
// }
//}
//MemoryStream ToPcm(IList list)
//{
// MemoryStream stream = new MemoryStream();
// Voip.Rtp.RtpPacket rtp2 = (Voip.Rtp.RtpPacket)list[0];
// foreach (Voip.Rtp.RtpPacket rtp in list)
// {
// byte[] buffer = rtp.DataPointer;
// stream.Write(buffer, 0, buffer.Length);
// }
// stream.Seek(0, SeekOrigin.Begin);
// MemoryStream pcmStream = null;
// if (rtp2.PayloadType == 18) pcmStream = G729ToPcm(stream);
// if (rtp2.PayloadType == 0) pcmStream = G711ToPcm(stream);
// stream.Close();
// stream.Dispose();
// pcmStream.Seek(0, SeekOrigin.Begin);
// return pcmStream;
//}
//MemoryStream DoubleChannelStream(MemoryStream pcmStream)
//{
// MemoryStream doubleChannelStream = new MemoryStream();
// while (pcmStream.Position < pcmStream.Length)
// {
// byte[] buffer = new byte[] { 0x00, 0x00 };
// pcmStream.Read(buffer, 0, 2);
// doubleChannelStream.Write(buffer, 0, 2); //左声道
// doubleChannelStream.Write(buffer, 0, 2); //右声道
// }
// pcmStream.Close();
// doubleChannelStream.Seek(0, SeekOrigin.Begin);
// return doubleChannelStream;
//}
//MemoryStream G729ToPcm(MemoryStream ipv4DataStream)
//{
// int ret = Voip.Coding.G729.Init(2, ""); //create two channels(channel 0 and 1)
// Voip.Coding.G729.ResetChannel(0); //always reset before using a channel for a call/voice stream
// MemoryStream pcmStream = new MemoryStream();
// byte[] pG729 = new byte[10];
// while (true)
// {
// byte[] pLinear = new byte[160]; //set your data then
// int readLen = ipv4DataStream.Read(pG729, 0, 10);
// if (readLen < 10)
// {
// break;
// }
// ret = Voip.Coding.G729.Decode(0, pG729, pLinear); //pass 10 bytes 729 data in, it will output 160 linear(PCM) data
// if (ret <= 0)
// {
// return null;
// }
// pcmStream.Write(pLinear, 0, 160);
// }
// Voip.Coding.G729.Free();
// pcmStream.Seek(0, SeekOrigin.Begin);
// return pcmStream;
//}
//MemoryStream G711ToPcm(MemoryStream ipv4DataStream)
//{
// byte[] pLinear = new byte[40]; //set your data then
// byte[] pG711 = new byte[20];
// MemoryStream pcmStream = new MemoryStream();
// while (true)
// {
// int readLen = ipv4DataStream.Read(pG711, 0, 20);
// if (readLen < 20)
// {
// break;
// }
// pLinear = Voip.Coding.G711.ULawDecode(pG711, 0, 20);
// pcmStream.Write(pLinear, 0, 40);
// }
// pcmStream.Seek(0, SeekOrigin.Begin);
// return pcmStream;
//}
/// <summary>
/// 生成WAV文件头
/// </summary>
/// <param name="length">文件长度</param>
/// <returns>文件头</returns>
//byte[] createWavHeader(int length)
//{
// byte[] wavHeader ={
// // RIFF WAVE Chunk
// 0x52, 0x49, 0x46, 0x46, // "RIFF"
// 0x00, 0x00, 0x00, 0x00, // 总长度 整个wav文件大小减去ID和Size所占用的字节数（话音长加40）
// 0x57, 0x41, 0x56, 0x45, // "WAVE"
// // Format Chunk
// 0x66, 0x6D, 0x74, 0x20, // "fmt "
// 0x10, 0x00, 0x00, 0x00, // 过渡字节不定
// 0x01, 0x00, // 编码方式
// 0x02, 0x00, // 声道数目
// 0x40, 0x1F, 0x00, 0x00, // 采样频率 8000
// 0x00, 0x7D, 0x00, 0x00, // 每秒所需字节数=采样频率8000*2字节（16bit采样）*2（双声道）=0x7D00
// 0x04, 0x00, // ？？？
// 0x10, 0x00, // ？？？
// // Data Chunk
// 0x64, 0x61, 0x74, 0x61, // "data"
// 0x00, 0x00, 0x00, 0x00 //话音长
// };
// BitConverter.GetBytes(length).CopyTo(wavHeader, 4);
// BitConverter.GetBytes(length + 40).CopyTo(wavHeader, 40);
// return wavHeader;
//}
public void Save(string folder, int minLength)
{
//List<Task> taskList = new List<Task>();
foreach (DictionaryEntry entry in historyHashtable)
{
string fileName = entry.Key.ToString();
Voip.Voiper voiper = entry.Value as Voip.Voiper;
if (voiper.Count > minLength)
{
//Task task = new Task(() => {
try
{
voiper.Save(folder, fileName);
}
catch (Exception ex)
{
LogHelper.Error(string.Format("输出语音文件{0}.wav错误.", fileName), ex);
}
try
{
voiper.SaveMetadata(folder, fileName);
}
catch (Exception ex)
{
LogHelper.Error(string.Format("输出元数据文件{0}.xml错误.", fileName), ex);
}
//});
//task.Start();
//taskList.Add(task);
}
}
//Task.WaitAll(taskList.ToArray());
//taskList.Clear();
historyHashtable.Clear();
}
public void Create(string key, RtpPacket rtpPackert, DateTime signalCreateTime, double frequency)
{
lock (historyHashtable)
{
Voip.Voiper voiper = new Voip.Voiper(signalCreateTime, frequency, rtpPackert.ParentPacket);
historyHashtable[key] = voiper;
}
}
public void Add(string key, RtpPacket rtpPacket)
{
lock (historyHashtable)
{
if (historyHashtable.Contains(key)) //历史中有处理过
{
Voip.Voiper voiper = historyHashtable[key] as Voip.Voiper;
voiper.Add(rtpPacket);
}
}
}
public int Count(string key)
{
Voip.Voiper voiper = historyHashtable[key] as Voip.Voiper;
return(voiper.Count);
}