WSeries_Calibration/QtCameraHardWareCopilot/VideoStreamCatcher.cpp

#include "VideoStreamCatcher.h"

bool VideoStreamCatcher::m_bStartOrNot = false;

VideoStreamCatcher::VideoStreamCatcher()
{
	//init the pointer
	m_pVideoSource = nullptr;
	m_pVideoDecoder = nullptr;
	m_pVideoDataManager = nullptr;
	m_pSyncProc = nullptr;

	//init the image 
	m_pOutputImage = nullptr;
	m_nOutputImageHeight = 0;
	m_nOutputImageWidth = 0;
	m_nOutputImagePitch = 0;

	m_bStartOrNot = false;
}

VideoStreamCatcher::~VideoStreamCatcher()
{
	delete m_pVideoSource;
	delete m_pVideoDecoder;
	delete m_pVideoDataManager;
	delete m_pSyncProc;
	delete m_pOutputImage;
}

bool VideoStreamCatcher::Init(QString strAddress)
{
	CVideoDataManager* pDataMan = new CVideoDataManager();

	CVideoSource* pSource = new CVideoSource();
	bool bRes = pSource->Init(strAddress.toStdString().c_str(), pDataMan);
	if (!bRes)
		return false;
	CVideoDecoder* pDecode = new CVideoDecoder(pSource->GetVideoDecode(), CVideoSource::IsHardDecode(), pDataMan);
	CSyncProc::getInstance().AddDataManager(pDataMan);

	m_pVideoDataManager = pDataMan;
	m_pVideoDecoder = pDecode;
	m_pVideoSource = pSource;

	m_nOutputImageHeight = m_pVideoSource->GetHeight();
	m_nOutputImageWidth = m_pVideoSource->GetWidth();
	m_nOutputImagePitch = (m_nOutputImageWidth*3+3)/4*4;

	m_nVideoWidth = m_nOutputImageWidth;
	m_nVideoHeight = m_nOutputImageHeight;

	//allocate memory for the output image
	m_pOutputImage = new unsigned char[m_nOutputImagePitch * m_nOutputImageHeight];

	return bRes;
}

void VideoStreamCatcher::Start()
{
	//check the start flag
	if (m_bStartOrNot)
	{
		return;
	}
	CSyncProc::getInstance().Start();
	m_bStartOrNot = true;
}

void VideoStreamCatcher::Stop()
{
	//put off until some time later
	
}

void VideoStreamCatcher::GetVideoImage(unsigned char*& pImage, int& nWidth, int& nHeight, int& nPitch)
{
	//check the frame decoder data count
	if (m_pVideoDataManager->GetDecoderDataCount() >= 0)
	{
		//get a frame from the video data manager
		int nFrameDataSize = m_nOutputImagePitch * m_nOutputImageHeight;
		double dbAngle = 0;
		m_pVideoDataManager->GetDecoderData(m_pOutputImage, nFrameDataSize, dbAngle);
	}

	//set the image pointer
	pImage = m_pOutputImage;
	nWidth = m_nOutputImageWidth;
	nHeight = m_nOutputImageHeight;
	nPitch = m_nOutputImagePitch;

	cv::Mat img(m_nOutputImageHeight,m_nOutputImageWidth , CV_8UC3, m_pOutputImage);

}