public void StartConnect()
{
ErrorCode errorCode = OfficalApi.BeginCard(Index, ref _cardHandle);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("打开采集卡失败");
}
errorCode = OfficalApi.SetVideoStandard(_cardHandle, VideoStandardMode.Pal);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("设置采集卡视频制式失败");
}
errorCode = OfficalApi.SetVideoFormat(_cardHandle, VideoFormat.Limited8Bit);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("设置采集卡视频格式失败");
}
errorCode = OfficalApi.SetInputWindow(_cardHandle, 0, 0, Width, Height);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("设置采集卡输入窗口失败");
}
errorCode = OfficalApi.SetOutputWindow(_cardHandle, 0, 0, Width, Height);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("设置采集卡输出窗口失败");
}
}
public bool CaptureOneFrameAsync()
{
int fieldNumber = -1;
var errorCode = OfficalApi.GetSnappingNumber(_cardHandle, ref fieldNumber);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡采集图像失败");
}
if (fieldNumber < 0)
{
return(false);
}
int frameNumber = fieldNumber / 2 - 1;
if (frameNumber == -1)
{
frameNumber = AsyncFramesCount - 1;
}
//Trace.WriteLine(DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss:fff") + " " + frameNumber);
errorCode = OfficalApi.StaticMemLock(frameNumber * FrameBufferSize,
FrameBufferSize,
ref _staticMemoryHandle,
ref _staticMemoryPointer);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡锁定图像失败");
}
//传输到缓冲区
var sourcePtr = (byte *)_staticMemoryPointer.ToPointer();
var targetPtr = (byte *)CaptureFrameBuffer.ToPointer();
for (int i = 0; i < FrameBufferSize; i++)
{
*targetPtr++ = *sourcePtr++;
}
errorCode = OfficalApi.StaticMemUnlock(_staticMemoryHandle);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡解锁图像失败");
}
return(true);
}
private int GetCardsCount()
{
int total = 0;
var errorcode = OfficalApi.GetCardTotal(ref total);
if (errorcode != ErrorCode.CG_OK)
{
throw new DaHengException(errorcode);
}
return(total);
}
public void SetVideoSource(int index)
{
VideoSource videoSource = new VideoSource
{
Index = index,
Type = VideoSourceType.CompositeVideo
};
ErrorCode errorCode = OfficalApi.SetVideoSource(_cardHandle, videoSource);
if (errorCode != ErrorCode.CG_OK)
{
throw new InvalidOperationException("采集卡设置视频源失败");
}
}
/// <summary>
/// 采集一帧
/// </summary>
public bool CaptureOneFrameSync()
{
//采集图像
ErrorCode errorCode = OfficalApi.CaptureSync(_cardHandle, 0, 0, true, 1);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡采集图像失败");
}
errorCode = OfficalApi.StaticMemLock(0,
FrameBufferSize,
ref _staticMemoryHandle,
ref _staticMemoryPointer);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡锁定图像失败");
}
//传输到缓冲区
var sourcePtr = (byte *)_staticMemoryPointer.ToPointer();
var targetPtr = (byte *)CaptureFrameBuffer.ToPointer();
for (int i = 0; i < FrameBufferSize; i++)
{
*targetPtr++ = *sourcePtr++;
}
errorCode = OfficalApi.StaticMemUnlock(_staticMemoryHandle);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡解锁图像失败");
}
return(true);
}
public void SetContrast(byte constrast)
{
OfficalApi.AdjustVideo(_cardHandle, VideoAdjustMode.Contrast, constrast);
}
public void SetBrightness(byte brightness)
{
OfficalApi.AdjustVideo(_cardHandle, VideoAdjustMode.Brightness, brightness);
}
public void SetVideoMirror(MirrorType mirrorType, bool enable)
{
Debug.Assert(_cardHandle != IntPtr.Zero);
OfficalApi.SetVideoMirror(_cardHandle, mirrorType, enable);
}
public void StopConnect()
{
OfficalApi.EndCard(_cardHandle);
}
/// <summary>
/// 停止同步采集
/// </summary>
public void StopCaptureAsync()
{
OfficalApi.StopCaptureAsync(_cardHandle);
}
/// <summary>
/// 开始同步采集
/// </summary>
public void StartCaptureAsync()
{
OfficalApi.StartCaptureAsync(_cardHandle, 0, true, AsyncFramesCount);
}
