protected override bool PrepStop()
{
if ((uint)mChannelHandle != 0xFFFFFFFF)
{
if (DS40xxSDKWrap.StopVideoPreview(mChannelHandle) == 0)
{
return(true);
}
}
return(false);
}
protected override bool PrepPlay()
{
if ((uint)mChannelHandle != 0xFFFFFFFF)
{
win32.RECT rect = new win32.RECT();
win32.GetClientRect(HWnd, ref rect);
if (DS40xxSDKWrap.StartVideoPreview(mChannelHandle, HWnd, ref rect, true, TypeVideoFormat.vdfRGB24, mFps) == 0)
{
return(true);
}
}
return(false);
}
protected override bool PrepClose()
{
if ((uint)mChannelHandle != 0xFFFFFFFF)
{
//DS40xxSDKWrap.StopRegisterDrawFun((Int32)Target);
DS40xxSDKWrap.SetImageStream(mChannelHandle, false, mFps, mWidth, mHeight, mImageBuf);
if (DS40xxSDKWrap.ChannelClose(mChannelHandle) == 0)
{
mChannelHandle = IntPtr.Zero;
return(true);
}
}
return(false);
}
protected override bool PrepOpen(object target)
{
if ((uint)mChannelHandle == 0xFFFFFFFF)
{
mChannelHandle = DS40xxSDKWrap.ChannelOpen((Int32)target);
if ((uint)mChannelHandle != 0xFFFFFFFF)
{
//DS40xxSDKWrap.RegisterDrawFun((Int32)Target, ImageDrawer.DrawFun, 0);
DS40xxSDKWrap.SetImageStream(mChannelHandle, true, mFps, mWidth, mHeight, mImageBuf);
//ShowOSDType = ShowOSDType;
return(true);
}
}
return(false);
}
private static bool CleanupCard()
{
lock (mInitObj)
{
if (mRefCount > 0)
{
mRefCount--;
}
if (mDSPInit && mRefCount <= 0)
{
DS40xxSDKWrap.RegisterImageStreamCallback(null, IntPtr.Zero);
DS40xxSDKWrap.DeInitDSPs();
mDSPInit = false;
mRefCount = 0;
mChannelCount = 0;
mPlays = null;
}
return(!mDSPInit);
}
}
private static bool InitCard(VideoStandard_t VideoStandard)
{
lock (mInitObj)
{
mRefCount++;
if (!mDSPInit)
{
DS40xxSDKWrap.SetDefaultVideoStandard(VideoStandard);
mChannelCount = DS40xxSDKWrap.InitDSPs();
if (mChannelCount > 0)
{
mPlays = new HKCardPlayer[mChannelCount];
mImageStreamCallback = new IMAGE_STREAM_CALLBACK(DoImageStreamCallBack);
DS40xxSDKWrap.RegisterImageStreamCallback(mImageStreamCallback, IntPtr.Zero);
mDSPInit = true;
}
}
return(mDSPInit);
}
}
public bool RefreshPlayArea()
{
if (IsOpen)
{
if (IsPlay)
{
if (DS40xxSDKWrap.StopVideoPreview(mChannelHandle) == 0)
{
win32.RECT rect = new win32.RECT();
win32.GetClientRect(HWnd, ref rect);
if (DS40xxSDKWrap.StartVideoPreview(mChannelHandle, HWnd, ref rect, true, TypeVideoFormat.vdfRGB24, mFps) == 0)
{
return(true);
}
else
{
Stop();
}
}
return(false);
}
}
return(true);
}
