public static extern int NET_DVR_RealPlay_V40(int iUserID, ref NET_DVR_PREVIEWINFO lpPreviewInfo, REALDATACALLBACK fRealDataCallBack_V30, IntPtr pUser);
/// <summary>
/// 推流
/// </summary>
/// <param name="rtmp"></param>
/// <param name="ip"></param>
/// <param name="port"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <returns></returns>
public static Task PullStream(string rtmp, string ip, int port, string username, string password)
{
stream = new FileStream("audio.aac", FileMode.Append);
return(Task.Run(() =>
{
var _video = new VideoModel()
{
IP = ip,
Port = port,
Channel = 1
};
//取得推流句柄
_video.RTMPHandle = LKRtmp.LKRtmp_Init(rtmp);
if (_video.RTMPHandle <= 0)
{
Console.WriteLine("取得推流句柄失败");
return;
}
//同步登陆
NET_DVR_DEVICEINFO_V30 deviceInfo = new NET_DVR_DEVICEINFO_V30();
_video.UserHandle = CHCNetSDK.NET_DVR_Login_V30(ip, port, username, password, ref deviceInfo);
if (_video.UserHandle < 0)
{
Console.WriteLine("登陆失败，错误码：" + CHCNetSDK.NET_DVR_GetLastError());
LKRtmp.LKRtmp_Fini(_video.RTMPHandle);
return;
}
var sn = Encoding.UTF8.GetString(deviceInfo.sSerialNumber);
Console.WriteLine($"IP:{ip}, SN: {sn}");
var previewInfo = new NET_DVR_PREVIEWINFO
{
hPlayWnd = IntPtr.Zero, //预览窗口 live view window
lChannel = _video.Channel, //预览的设备通道 the device channel number
dwStreamType = 0, //码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推
dwLinkMode = 0, //连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP
bBlocked = true, //0- 非阻塞取流，1- 阻塞取流
dwDisplayBufNum = 15 //播放库显示缓冲区最大帧数
};
//开视播放
_video.RealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(_video.UserHandle
, ref previewInfo
, (iRealHandle, dwDataType, pBuffer, dwBufSize, pUser) =>
{
var video = _videos.Find(d => d.RealHandle == iRealHandle);
if (video == null)
{
CHCNetSDK.NET_DVR_StopRealPlay(iRealHandle);
return;
}
//lRealHandle和CHCNetSDK.NET_DVR_RealPlay_V40返回值是一样的
if (dwDataType == 1) //数据头
{
//海康私有协议头，只有第一次调用是为1
}
else if (dwDataType == 2)
{
var head = Marshal.ReadInt32(pBuffer, 0);
if (head == -1174339584) //0x00, 0x00, 0x01, 0xBA = -1174339584 PS包
{
/*如果收到PS包头，表示的是接下来的数据是一个新的PS包，上一个PS数据包接收完成*/
//Marshal.AllocHGlobal 分配内存 使用完成后一定要使用Marshal.FreeHGlobal 释放，否则会造成内存泄漏
var ts = (ulong)((DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000) - 1524100000000;
//Console.WriteLine(ts);
if (video.Buffer.Count > 0)
{
IntPtr p = Marshal.AllocHGlobal(video.Buffer.Count);
Marshal.Copy(video.Buffer.ToArray(), 0, p, video.Buffer.Count);
var result = LKRtmp.LKRtmp_PutData(video.RTMPHandle, 100, p, video.Buffer.Count, ts, video.Buffer[4] == 0x67 ? 1 : 0);
Marshal.FreeHGlobal(p);
video.Buffer.Clear();
}
else
{
Console.WriteLine("无视频");
}
if (video.AudioBuffer.Count > 0)
{
IntPtr pa = Marshal.AllocHGlobal(video.AudioBuffer.Count);
Marshal.Copy(video.AudioBuffer.ToArray(), 0, pa, video.AudioBuffer.Count);
LKRtmp.LKRtmp_PutData(video.RTMPHandle, 204, pa, video.AudioBuffer.Count, ts, 0);
Marshal.FreeHGlobal(pa);
stream.Write(video.AudioBuffer.ToArray(), 0, video.AudioBuffer.Count);
video.AudioBuffer.Clear();
}
else
{
Console.WriteLine("无音频");
}
}
else if (-536805376 == head) //-536805376 = 0x00, 0x00, 0x01, 0xE0 视频
{
/*如果收到视频包则追加到缓存中*/
var skip = Marshal.ReadByte(pBuffer, 8) + 9;
var buff = new byte[dwBufSize - skip];
var pData = IntPtr.Add(pBuffer, skip);
Marshal.Copy(pData, buff, 0, (int)(dwBufSize - skip));
video.Buffer.AddRange(buff);
}
else if (-1073676288 == head) //-1073676288 = 0x00, 0x00, 0x01, 0xC0 音频
{
/*如果收到音频包则追加到缓存中*/
//var arr = new byte[dwBufSize];
//Marshal.Copy(pBuffer, arr, 0, (int)dwBufSize);
//foreach(var b in arr)
//{
// Console.Write(b.ToString("X") + " ");
//}
//Console.WriteLine("---------------");
var skip = Marshal.ReadByte(pBuffer, 8) + 9;
var buff = new byte[dwBufSize - skip];
var pData = IntPtr.Add(pBuffer, skip);
Marshal.Copy(pData, buff, 0, (int)(dwBufSize - skip));
video.AudioBuffer.AddRange(buff);
//foreach (var b in buff)
//{
// Console.Write(b.ToString("X") + " ");
//}
//Console.WriteLine("***********");
}
else
{
var t = BitConverter.GetBytes(head);
Console.WriteLine($"[{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}] 未知包头:{t[0].ToString("X")} {t[1].ToString("X")} {t[2].ToString("X")} {t[3].ToString("X")}");
}
}
}
, IntPtr.Zero);
if (_video.RealHandle < 0)
{
Console.WriteLine(ip + "预览失败，错误码：" + CHCNetSDK.NET_DVR_GetLastError());
LKRtmp.LKRtmp_Fini(_video.RTMPHandle);
CHCNetSDK.NET_DVR_Logout_V30(_video.UserHandle);
return;
}
_videos.Add(_video);
}));
}
