|| ||          

---

mainDemoVideo.c File Reference

#include <vector>
#include "HxTimer.h"
#include "HxDXMedia.h"
#include "HxImageSeq.h"
#include "HxExportByteData.h"
#include "HxMakeFromByteData.h"

Functions
void	showTimeInfo (bool theEnd)
int	visitUsingSequence (HxString seqName)
int	visitUsingDX (HxString seqName)
int	testDisplayDX ()
void	showUsage (char *progName)
int	main (int argc, char *argv[])
Variables
int	verbose = 0
bool	doDisplay = false
bool	doStep = false
int	nFrames
int	width
int	height
HxTimer	t
int	nr
double	total
double	estTime
double	fps

---

Function Documentation

void showTimeInfo (  bool    theEnd )

{ total += t.lastTime(); nr++; fps = nr / total; estTime = nFrames / fps; if (((verbose > 0) && (nr % verbose == 0)) || theEnd) { STD_COUT << "nr " << nr << " in " << t.lastTime() << " s, " << fps << " fps, " << "E " << total << " s, R " << estTime - total << " s" << STD_ENDL; } if (theEnd) return; if (doStep) { char c; STD_COUT << "Hit return - "; c = STD_CIN.get(); } }

int visitUsingSequence (  HxString    seqName )

{ HxImageSeq seq(seqName, 0); nFrames = seq.nrFrames(); STD_COUT << "Frames : " << nFrames << STD_ENDL; width = seq.frameWidth(); height = seq.frameHeight(); STD_COUT << "Width x height = " << width << " x " << height << STD_ENDL; void* dispH = 0; if (doDisplay) dispH = HxDXBeginDisplay(width, height); nr = 0; total = 0; int nPix = width * height; unsigned char* charBuf = new unsigned char[nPix * 3]; int* intBuf = new int[nPix]; for (HxImageSeqIter it = seq.begin() ; it != seq.end() ; it++) { t.start(); HxImageRep im = *it; // HxValue v = im.sum(); //STD_COUT << "v: " << v << STD_ENDL; // for (int i=0 ; i<nPix ; i++) // buf[i] = 200; //im.exportOp(charBuf); HxExportByteData(im, charBuf); /* im.getRgbPixels2d(intBuf, HxString("Direct")); int* src = intBuf; unsigned char* dst = charBuf; int n = nPix; while(n--) { unsigned char r = (unsigned char)((*src & 0x00ff0000) >> 16); //r unsigned char g = (unsigned char)((*src & 0x0000ff00) >> 8); //g unsigned char b = (unsigned char)((*src & 0x000000ff) ); //b *dst++ = r; *dst++ = g; *dst++ = b; src++; } */ if (dispH) HxDXPutFrame(dispH, charBuf); t.stop(); showTimeInfo(false); } showTimeInfo(true); if (dispH != 0) HxDXEndDisplay(dispH); return 0; }

int visitUsingDX (  HxString    seqName )

{ void* handle = HxDXLoadVideo(seqName.c_str()); nFrames = HxDXGetLength(handle); STD_COUT << "Frames : " << nFrames << STD_ENDL; width = HxDXGetFrameWidth(handle); height = HxDXGetFrameHeight(handle); STD_COUT << "Width x height = " << width << " x " << height << STD_ENDL; HxSizes sizes = HxSizes(width, height, 1); void* dispH = 0; if (doDisplay) dispH = HxDXBeginDisplay(width, height); nr = 0; total = 0; int bufSize = width * height * 3; unsigned char* bufCopy = new unsigned char[bufSize]; for (int it = 0 ; it < nFrames-1 ; it++) { t.start(); unsigned char* data = HxDXGetFrame(handle, it); //STD_COUT << "Got frame" << STD_ENDL; if (data) { // for (int i=0 ; i<bufSize ; i++) // bufCopy[i] = data[i]; HxImageRep im = HxMakeFromByteData(3, 2, sizes, data); // HxValue v = im.max(); HxExportByteData(im, bufCopy); if (dispH) HxDXPutFrame(dispH, bufCopy); // HxDXPutFrame(dispH, data); } t.stop(); showTimeInfo(false); } showTimeInfo(true); HxDXCloseVideo(handle); if (dispH != 0) HxDXEndDisplay(dispH); return 0; }

int testDisplayDX (    )

{ int width = 320; int height = 200; HxSizes sizes(width, height, 1); void* dispH = HxDXBeginDisplay(width, height); HxTimer t; int nFrames = 1000; int nr = 0; double total = 0; double estTime; double fps; int bufSize = width * height * 4; unsigned char* buf = new unsigned char[bufSize]; for (int it = 0 ; it < nFrames ; it++) { t.start(); for (int i=0 ; i<bufSize ; i++) buf[i] = it % 250; HxDXPutFrame(dispH, buf); t.stop(); total += t.lastTime(); nr++; fps = nr / total; estTime = nFrames / fps; if (nr % 20 == 0) { STD_COUT << "fr " << nr << " (" << nFrames << ") in " << t.lastTime() << " s\t " << fps << " fps, " << "E " << total << " R " << estTime - total << STD_ENDL; } } HxDXEndDisplay(dispH); return 0; }

void showUsage (  char *    progName )

{ STD_COUT << "Usage : " << progName << " [-source videoFile] " << STD_ENDL << " [--generator] [-verb perNrFrames] " << STD_ENDL << " [--useHxImageSeq] [--display] [--step] [--help]" << STD_ENDL; }

int main (  int    argc, char *    argv[] )

{ HxString videoFile; bool useGenerator = false; bool useHxImageSeq = false; int i = 1; while (i < argc) { if (HxString(argv[i]) == "-source") { videoFile = HxString(argv[i+1]); i++; } if (HxString(argv[i]) == "--generator") useGenerator = true; if (HxString(argv[i]) == "-verb") { verbose = atol(argv[i+1]); i++; } if (HxString(argv[i]) == "--useHxImageSeq") useHxImageSeq = true; if (HxString(argv[i]) == "--display") doDisplay = true; if (HxString(argv[i]) == "--step") doStep = true; if (HxString(argv[i]) == "--help") { showUsage(argv[0]); return 1; } i++; } // need videoFile or generator if ((videoFile == "") && !useGenerator) { showUsage(argv[0]); return 1; } if (useGenerator) STD_COUT << "Using generator" << STD_ENDL; else STD_COUT << "videoFile : " << videoFile << STD_ENDL; STD_COUT << "useHxImageSeq : " << useHxImageSeq << STD_ENDL; STD_COUT << "doDisplay : " << doDisplay << STD_ENDL; if (useGenerator) return testDisplayDX(); if (useHxImageSeq) return visitUsingSequence(videoFile); return visitUsingDX(videoFile); }

---

Variable Documentation

int verbose = 0 [static]

bool doDisplay = false [static]

bool doStep = false [static]

int nFrames

int width

int height

HxTimer t [static]

int nr [static]

double total [static]

double estTime [static]

double fps [static]

---