public override void OpenForSnapshot(bool _async)
{
if (!_IsReadyForSnapshot)
{
ST_DeviceInfo stDeviceInfo = new ST_DeviceInfo();
stDeviceInfo.st_InetAddr.szHostIP = VideoSource.MediaSource;
stDeviceInfo.st_InetAddr.nPORT = (ushort)VideoSource.StreamPort;
stDeviceInfo.st_InetAddr.nIPProtoVer = 1;
stDeviceInfo.szUserID = VideoSource.UserName;
stDeviceInfo.szPassword = VideoSource.Password;
stDeviceInfo.nDeviceType = 1; //
int nRet = 0;
int nProtocol = 1; //1表示udp协议,2表示tcp协议 4表示rtp协议
//初始化设备信息
nRet = InitRemoteLivePlayer2.Remote_Nvd_Init(ref nHandle, ref stDeviceInfo, nProtocol);
//设置远程抓拍超时时间
nRet = InitRemoteLivePlayer2.Remote_Snapshot_SetTimeout(nHandle, _RemoteSnapshotTimeout);
//if (nRet == 0)
//{
// nRet = InitRemoteLivePlayer2.Remote_Snapshot_Open(nHandle);//在抓拍时才打开远程抓拍
//}
this._IsReadyForSnapshot = (nRet == 0);
}
}
private void video_Resize(object sender, EventArgs e)
{
lock (_StatusLock)
{
if (_Status == VideoStatus.Playing)
{
InitRemoteLivePlayer2.Remote_LivePlayer2_SetVideoWindow(nHandle, int.Parse(video.Handle.ToString()), 0, 0, video.Width, video.Height);
}
}
}
/// <summary>
/// 获取错误信息
/// </summary>
/// <param name="nRet"></param>
/// <returns></returns>
private string GetErrMessage(int nRet)
{
string szErrorInfo = string.Empty;
byte[] errorby = new byte[512];
string retStr = "";
InitRemoteLivePlayer2.Remote_Nvd_formatMessage(nRet, errorby, 512);
retStr = Encoding.ASCII.GetString(errorby);
return(retStr);
}
public override void Pause()
{
lock (_StatusLock)
{
if (VideoSource == null)
{
return;
}
int nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_Pause(nHandle);
this._Status = VideoStatus.Paused;
this._IsReadyForSnapshot = false;
}
}
private void SetVideoWindow()
{
Action action = delegate()
{
InitRemoteLivePlayer2.Remote_LivePlayer2_SetVideoWindow(nHandle, int.Parse(video.Handle.ToString()), 0, 0, video.Width, video.Height);
};
if (this.video.InvokeRequired)
{
this.video.Invoke(action);
}
else
{
action();
}
}
public override void Close()
{
lock (_StatusLock)
{
if (VideoSource != null)
{
InitRemoteLivePlayer2.Remote_Snapshot_Close(nHandle);
InitRemoteLivePlayer2.Remote_Nvd_UnInit(nHandle);
InitRemoteLivePlayer2.Remote_LivePlayer2_Close(nHandle);
}
this._Status = VideoStatus.Disconnected;
this._IsReadyForSnapshot = false;
}
if (!this.TitlePanel.InvokeRequired)
{
this.TitlePanel.Visible = false;
this.video.BackColor = Color.Navy;
}
}
public override void Play(bool isAsync)
{
lock (_StatusLock)
{
if (this._Status != VideoStatus.Playing)
{
if (VideoSource == null)
{
return;
}
if (!this.TitlePanel.InvokeRequired) //显示视频头
{
this.Caption = VideoSource.VideoName;
this.TitlePanel.Visible = ShowTitle;
}
ST_DeviceInfo stDeviceInfo = new ST_DeviceInfo();
stDeviceInfo.st_InetAddr.szHostIP = VideoSource.MediaSource;
stDeviceInfo.st_InetAddr.nPORT = (ushort)VideoSource.StreamPort;
stDeviceInfo.st_InetAddr.nIPProtoVer = 1;
stDeviceInfo.szUserID = VideoSource.UserName;
stDeviceInfo.szPassword = VideoSource.Password;
stDeviceInfo.nDeviceType = 1; //
int nRet = 0;
int nProtocol = 1; //1表示udp协议,2表示tcp协议 4表示rtp协议
//初始化设备信息
nRet = InitRemoteLivePlayer2.Remote_Nvd_Init(ref nHandle, ref stDeviceInfo, nProtocol);
if (nRet != 0)
{
return;
}
//设置是否拉伸模式
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_SetStretchMode(nHandle, StretchToFit);
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_SetAutoResizeFlag(nHandle, StretchToFit);
if (nRet != 0)
{
return;
}
//设置默认流ID，需根据网络摄像机的流设置来设置ID，不同码流会有不同的分辨率
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_SetDefaultStreamId(nHandle, VideoSource.Channel);
if (nRet != 0)
{
return;
}
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_SetAutoConnectFlag(nHandle, VideoSource.AutoReconnect);
if (nRet != 0)
{
return;
}
//打开摄像机
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_Open(nHandle, 1);
if (nRet != 0)
{
return;
}
//播放视频
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_Play(nHandle);
if (nRet != 0)
{
return;
}
nRet = InitRemoteLivePlayer2.Remote_LivePlayer2_SetVideoWindow(nHandle, int.Parse(video.Handle.ToString()), 0, 0, video.Width, video.Height);
if (nRet != 0)
{
return;
}
//设置远程抓拍超时时间
nRet = InitRemoteLivePlayer2.Remote_Snapshot_SetTimeout(nHandle, _RemoteSnapshotTimeout);
////打开远程抓拍,不调用这个方法，打开视频时不能抓拍图片
//nRet = InitRemoteLivePlayer2.Remote_Snapshot_Open(nHandle);//在抓拍时才打开
if (nRet != 0)
{
return;
}
this._Status = VideoStatus.Playing;
this._IsReadyForSnapshot = true;
}
}
}
/// <summary>
/// 抓拍图片
/// </summary>
/// <param name="path"></param>
/// <param name="timeout">超时时间(ms)</param>
/// <returns></returns>
public override bool SnapShotTo(ref string path, int timeout, bool force)
{
bool success = false;
ST_AVFrameData stAVFrameData = new ST_AVFrameData();
try
{
lock (_StatusLock)
{
//在初始化时设置超时时间了，这里就不再设置超时时间了
//int nRet = InitRemoteLivePlayer2.Remote_Snapshot_SetTimeout(nHandle, timeout);
//在这里打开远程抓拍，是因为当打开远程抓拍后，如果一段时间内不进行抓拍动作，再进行抓拍时会报错
//所以在这里打开远程抓拍，并且抓拍完成后，需关闭远程抓拍
int nRet = InitRemoteLivePlayer2.Remote_Snapshot_Open(nHandle);
if (nRet == 0)
{
ST_RemoteSnapshotParam stRemoteSnapshotParam = new ST_RemoteSnapshotParam();
//stRemoteSnapshotParam.nCameraID = this.VideoSource.Channel;
//这里设置nCameraID为1，是因为IP Camera设备只有一个Camera，所以固定设为1
stRemoteSnapshotParam.nCameraID = 1;
stRemoteSnapshotParam.nQuality = 5;
stRemoteSnapshotParam.nPhotoFormat = 1;// PHOTOFORMAT_JPEG
nRet = InitRemoteLivePlayer2.Remote_Snapshot_GetSnapshotPicture(nHandle, ref stRemoteSnapshotParam, ref stAVFrameData);
if (nRet != 0)
{
if (Ralid.Park.BusinessModel.Configuration.AppSettings.CurrentSetting.Debug)
{
string logmsg = string.Format("【{0}】远程抓拍失败 ", this.VideoSource.VideoName);
logmsg += " 错误代码：" + nRet;
logmsg += " 错误信息：" + GetErrMessage(nRet);
Ralid.GeneralLibrary.LOG.FileLog.Log("FrmSnapShoter", logmsg);
}
}
}
else
{
if (Ralid.Park.BusinessModel.Configuration.AppSettings.CurrentSetting.Debug)
{
string logmsg = string.Format("【{0}】打开远程抓拍失败 ", this.VideoSource.VideoName);
logmsg += " 错误代码：" + nRet;
logmsg += " 错误信息：" + GetErrMessage(nRet);
Ralid.GeneralLibrary.LOG.FileLog.Log("FrmSnapShoter", logmsg);
}
}
if (nRet == 0)
{
byte[] data = new byte[stAVFrameData.nDataLength];
System.Runtime.InteropServices.Marshal.Copy(stAVFrameData.pszData, data, 0, stAVFrameData.nDataLength);
File.WriteAllBytes(path, data);
}
//关闭远程抓拍
nRet = InitRemoteLivePlayer2.Remote_Snapshot_Close(nHandle);
if (nRet != 0)
{
if (Ralid.Park.BusinessModel.Configuration.AppSettings.CurrentSetting.Debug)
{
string logmsg = string.Format("【{0}】关闭远程抓拍失败 ", this.VideoSource.VideoName);
logmsg += " 错误代码：" + nRet;
logmsg += " 错误信息：" + GetErrMessage(nRet);
Ralid.GeneralLibrary.LOG.FileLog.Log("FrmSnapShoter", logmsg);
}
}
return(File.Exists(path));
}
}
catch (Exception ex)
{
Ralid.GeneralLibrary.ExceptionHandling.ExceptionPolicy.HandleException(ex);
}
return(success);
}
