distributiondlg.cpp

VC++视频开发实例集锦(包括“远程视频监控”"语音识别系统"等13个经典例子)

// DistributionDlg.cpp : implementation file
//

#include "stdafx.h"
#include "XvidQuantsParser.h"
#include "DistributionDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDistributionDlg dialog


CDistributionDlg::CDistributionDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDistributionDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDistributionDlg)
	m_icount = 0;
	m_pcount = 0;
	m_pavg = 0.0f;
	m_iavg = 0.0f;
	m_imaxfs = 0;
	m_iminfs = 0;
	m_pmaxfs = 0;
	m_pminfs = 0;
	//}}AFX_DATA_INIT

	qarray = NULL;
}

void CDistributionDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDistributionDlg)
	DDX_Control(pDX, IDC_LIST_PFRAMES, m_listp);
	DDX_Control(pDX, IDC_LIST_IFRAMES, m_listi);
	DDX_Text(pDX, IDC_EDIT_ICOUNT, m_icount);
	DDX_Text(pDX, IDC_EDIT_PCOUNT, m_pcount);
	DDX_Text(pDX, IDC_EDIT_PAVG, m_pavg);
	DDX_Text(pDX, IDC_EDIT_IAVG, m_iavg);
	DDX_Control(pDX, IDC_GRAPH_G, m_graphg);
	DDX_Control(pDX, IDC_GRAPH_I, m_graphi);
	DDX_Control(pDX, IDC_GRAPH_P, m_graphp);
	DDX_Text(pDX, IDC_EDIT_IMAXFS, m_imaxfs);
	DDX_Text(pDX, IDC_EDIT_IMINFS, m_iminfs);
	DDX_Text(pDX, IDC_EDIT_PMAXFS, m_pmaxfs);
	DDX_Text(pDX, IDC_EDIT_PMINFS, m_pminfs);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDistributionDlg, CDialog)
	//{{AFX_MSG_MAP(CDistributionDlg)
	ON_BN_CLICKED(IDC_BUTTON_DRAW, OnButtonDraw)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDistributionDlg message handlers

void CDistributionDlg::Init(CXvid &xvid, CXvid::QUANTS *quants, int nframes)
{
	nelem	= nframes;
	qarray	= quants;

	pavg	= xvid.GetPAvgQuants();
	pmaxfs	= xvid.GetPMaxFrameSize();
	pminfs	= xvid.GetPMinFrameSize();

	iavg	= xvid.GetIAvgQuants();
	imaxfs	= xvid.GetIMaxFrameSize();
	iminfs	= xvid.GetIMinFrameSize();
}

//-----------------------------------------------------------------------------------
void CDistributionDlg::ParsePFrames(void)
{
	char index[3], percent[6], fcount[8];
	pcount=0;

	//初始化
	for (int i=0; i<31; i++)
	{
		phisto[i] = 0;
	}

	//分析
	for (int j=0; j<nelem; j++)
	{
		if (!qarray[j].isIFrame)
		{
			phisto[qarray[j].qvalue-2] += 1;
			pcount++;
		}
	}

	//输出到P帧的list控件
	for (int k=0; k<31; k++)
	{
		sprintf(index,   "%dx",  k+2);
		sprintf(percent, "%.3f", (float)(phisto[k]*100)/(float)pcount);
		sprintf(fcount,  "%d",   phisto[k]);

		m_listp.InsertItem (k, index);						//Quants 索引
		m_listp.SetItemText(k, 1, percent);					//百分比
		m_listp.SetItemText(k, 2, fcount);					//百分比
	}

	m_pcount	= pcount;
	m_pavg		= pavg;
	m_pmaxfs	= pmaxfs;
	m_pminfs	= pminfs;

	UpdateData(FALSE);
}

//-----------------------------------------------------------------------------------
void CDistributionDlg::ParseIFrames(void)
{
	char index[3], percent[6], fcount[8];
	icount=0;

	//初始化
	for (int i=0; i<31; i++)
	{
		ihisto[i] = 0;
	}

	//分析
	for (int j=0; j<nelem; j++)
	{
		if (qarray[j].isIFrame)
		{
			ihisto[qarray[j].qvalue-2] += 1;
			icount++;
		}
	}

	//输出到list控件中
	for (int k=0; k<31; k++)
	{
		sprintf(index,   "%dx",  k+2);
		sprintf(percent, "%.3f", (float)(ihisto[k]*100)/(float)icount);
		sprintf(fcount,  "%d",   ihisto[k]);

		m_listi.InsertItem (k, index);						//Quants 索引
		m_listi.SetItemText(k, 1, percent);					//百分比
		m_listi.SetItemText(k, 2, fcount);					//百分比
	}

	m_icount	= icount;
	m_iavg		= iavg;
	m_imaxfs	= imaxfs;
	m_iminfs	= iminfs;

	UpdateData(FALSE);
}
//-----------------------------------------------------------------------------------

BOOL CDistributionDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	
	//P-Frames listview
	m_listp.InsertColumn(0, "Quant",LVCFMT_CENTER, 45);
	m_listp.InsertColumn(1, "%",	LVCFMT_CENTER, 70);
	m_listp.InsertColumn(2, "Count",LVCFMT_LEFT,   75);

	//I-Frames listview
	m_listi.InsertColumn(0, "Quant",LVCFMT_CENTER, 45);
	m_listi.InsertColumn(1, "%",	LVCFMT_CENTER, 70);
	m_listi.InsertColumn(2, "Count",LVCFMT_LEFT,   75);

	ParsePFrames();
	ParseIFrames();

	ScaleHistograms();

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

//-----------------------------------------------------------------------------------
void CDistributionDlg::ScaleHistograms(void)
{
	m_graphg.SetForeColor(RGB(200,0,0));
	m_graphg.SetLineWidth(3);
	m_graphg.SetScale(0, 0, 32, 110);

	m_graphp.SetForeColor(RGB(0,200,0));
	m_graphp.SetLineWidth(3);
	m_graphp.SetScale(0, 0, 32, 110);

	m_graphi.SetForeColor(RGB(0,0,200));
	m_graphi.SetLineWidth(3);
	m_graphi.SetScale(0, 0, 32, 110);
}

//-----------------------------------------------------------------------------------
void CDistributionDlg::DrawHistograms(void)
{
	int i;

	//Fill global histogram...
	for (i=0; i<31; i++)
	{
		ghisto[i] = phisto[i] + ihisto[i];
	}

	//global
	for (i=0; i<31; i++)
	{
		if (ghisto[i] > 0)
			m_graphg.DrawLine(i+1, 1, i+1, ((ghisto[i]*100)/(pcount+icount))+2);
	}

	//p-frames
	for (i=0; i<31; i++)
	{
		if (phisto[i] > 0)
			m_graphp.DrawLine(i+1, 1, i+1, ((phisto[i]*100)/pcount)+2);
	}

	//i-frames
	for (i=0; i<31; i++)
	{
		if (ihisto[i] > 0)
			m_graphi.DrawLine(i+1, 1, i+1, ((ihisto[i]*100)/icount)+2);
	}
}

//-----------------------------------------------------------------------------------
void CDistributionDlg::OnButtonDraw() 
{
	DrawHistograms();	
}