public async Task <int> StopRealPreview()
{
if (m_lReadHandle < 0)
{
LoggerService.logger.Error($"摄像头{ip}，未启动过预览。");
return(-1);
}
if (!HKNetSDKS.NET_DVR_StopRealPlay(m_lReadHandle))
{
LoggerService.logger.Error($"摄像头{ip}，播放器无法停止预览。错误代码：{HKNetSDKS.NET_DVR_GetLastError()}");
}
if (m_lPort >= 0)
{
if (!HKPlayCtrlSDK.PlayM4_Stop(m_lPort))
{
LoggerService.logger.Error($"摄像头{ip}，播放器无法停止工作。错误代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
if (!HKPlayCtrlSDK.PlayM4_CloseStream(m_lPort))
{
LoggerService.logger.Error($"摄像头{ip}，播放器无法关闭数据流。错误代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
if (!HKPlayCtrlSDK.PlayM4_FreePort(m_lPort))
{
LoggerService.logger.Error($"摄像头{ip}，播放器无法释放播放端口。错误代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
m_lPort = -1;
}
LoggerService.logger.Info($"摄像头{ip}，已停止预览。");
m_lReadHandle = -1;
Statue = CameraStatue.StopReadPlay;
if (PictrueBoxId != null)
{
PictrueBoxId.Invalidate();
PictrueBoxId = null;
}
return(0);
}
public void RealDataCallBack(int lReadHandle, uint dwDataType, IntPtr pBuffer, uint dwBufSize, IntPtr pUser)
{
switch (dwDataType)
{
case GloableVar.NET_DVR_SYSHEAD:
{
if (dwBufSize > 0)
{
if (m_lPort >= 0)
{
return;
}
//获取播放器句柄
if (!HKPlayCtrlSDK.PlayM4_GetPort(ref m_lPort))
{
LoggerService.logger.Error($"摄像头{ip},获取播放句柄错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
break;
}
//设置流播放模式
if (!HKPlayCtrlSDK.PlayM4_SetStreamOpenMode(m_lPort, GloableVar.STREAME_REALTIME))
{
LoggerService.logger.Error($"摄像头{ip},设置播放流错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
//打开码流，送入头数据 1080P视频流建议开到6M的缓存
if (!HKPlayCtrlSDK.PlayM4_OpenStream(m_lPort, pBuffer, dwBufSize, 6 * 1024 * 1024))
{
LoggerService.logger.Error($"摄像头{ip},打开播放流错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
break;
}
//设置显示缓冲区个数
if (!HKPlayCtrlSDK.PlayM4_SetDisplayBuf(m_lPort, 1))
{
LoggerService.logger.Error($"摄像头{ip},设置显示缓存区错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
//设置显示模式
if (!HKPlayCtrlSDK.PlayM4_SetOverlayMode(m_lPort, 0, 0))
{
LoggerService.logger.Error($"摄像头{ip},设置显示属性错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
//deccbfun也是个解码器，将DecCallbackFUN方法传入，为了将yu12图片通过Egmu转化成bgr格式的图片
m_fDisplayFun = new HKPlayCtrlSDK.DECCBFUN(DecCallbackFUN);
if (!HKPlayCtrlSDK.PlayM4_SetDecCallBackEx(m_lPort, m_fDisplayFun, IntPtr.Zero, 0))
{
LoggerService.logger.Error($"摄像头{ip},设置解码回调函数错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
}
if (!HKPlayCtrlSDK.PlayM4_Play(m_lPort, m_ptrReadHandle))
{
LoggerService.logger.Error($"摄像头{ip},播放软件播放错误 代码：{HKPlayCtrlSDK.PlayM4_GetLastError(m_lPort)}");
break;
}
LoggerService.logger.Info($"摄像头{ip}，解码器运行，通道{m_lPort}");
}
}
break;
case GloableVar.NET_DVR_STREAMDATA: //如果是流数据
default:
{
if (dwBufSize > 0 && m_lPort != -1)
{
bool inData = HKPlayCtrlSDK.PlayM4_InputData(m_lPort, pBuffer, dwBufSize);
while (!inData)
{
Thread.Sleep(10);
//play4是解码器，解码成为一个图片，但图片是vy12的格式图片
inData = HKPlayCtrlSDK.PlayM4_InputData(m_lPort, pBuffer, dwBufSize);
}
}
}
break;
}
}