// PREVIEW VIDEO CALLBACK FUNCTION
//
//回调函数，进行视频流操作
EXPORTS.ReturnOfCallbackEnum on_process_preview_video_buffer(uint pDevice, double dSampleTime, uint pFrameBuffer, uint nFrameBufferLen, uint pUserData)
{
uint nCH = pUserData;
if (b_bitmap[nCH] == true && pFrameBuffer != 0)
{
b_bitmap[nCH] = false;
unsafe
{
pDstABGRBuffer = (byte *)memory.Alloc((int)(m_nVideoWidth * m_nVideoHeight * 4));
EXPORTS.QCAP_COLORSPACE_YUY2_TO_ABGR32(pFrameBuffer, m_nVideoWidth, m_nVideoHeight, m_nVideoWidth * 2, (uint)pDstABGRBuffer, m_nVideoWidth, m_nVideoHeight, m_nVideoWidth * 4);
Bitmap bmp = new Bitmap((int)m_nVideoWidth, (int)m_nVideoHeight, PixelFormat.Format32bppRgb);
BitmapData bmpData = bmp.LockBits(new Rectangle(0,
0,
bmp.Width,
bmp.Height),
ImageLockMode.WriteOnly,
bmp.PixelFormat);
byte[] managedArray = new byte[(m_nVideoWidth * m_nVideoHeight * 4)];
Marshal.Copy((IntPtr)pDstABGRBuffer, managedArray, 0, (int)(m_nVideoWidth * m_nVideoHeight * 4));
Marshal.Copy(managedArray, 0, bmpData.Scan0, (int)(m_nVideoWidth * m_nVideoHeight * 4));
bmp.UnlockBits(bmpData);
switch (nCH)
{
case 0:
{
PicTosql1(bmp, nCH);
}
break;
case 1:
{
PicTosql(bmp, nCH);
}
break;
case 2:
{
PicTosql(bmp, nCH);
}
break;
case 3:
if (m_nNetworkServerState_v[nCH] > 0x00000000)
{
PicTosql(bmp, nCH);
}
break;
default:
break;
}
}
//string strOutput = "CH" + (nCH + 1).ToString() + " : on_process_preview_video_buffer => pDevice : " + pDevice.ToString() + " , dSampleTime : " + dSampleTime.ToString() + " , pFrameBuffer : " + pFrameBuffer.ToString() + " , nFrameBufferLen : " + nFrameBufferLen.ToString() + " , pUserData : " + pUserData.ToString() + " \n";
//OutputDebugString(strOutput);
}
return(EXPORTS.ReturnOfCallbackEnum.QCAP_RT_OK);
}
