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/*
describes a picture in yuv format
Copyright (C) 2000 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "yuvPicture.h"
#include <iostream>
using namespace std;
static int instanceCnt=0;
YUVPicture::YUVPicture(int width,int height) {
this->width=width;
this->height=height;
instance=instanceCnt;
instanceCnt++;
imagePtr=NULL;
setImageType(PICTURE_YUVMODE_CR_CB);
startTimeStamp=new TimeStamp();
waitTime=new TimeStamp();
earlyTime=new TimeStamp();
mpegType=-1;
}
YUVPicture::~YUVPicture() {
delete imagePtr;
delete earlyTime;
delete startTimeStamp;
delete waitTime;
}
int YUVPicture::getHeight() {
return height;
}
int YUVPicture::getWidth() {
return width;
}
int YUVPicture::getLumLength() {
return lumLength;
}
int YUVPicture::getColorLength() {
return colorLength;
}
int YUVPicture::getImageSize() {
return imageSize;
}
void YUVPicture::print(const char* title) {
cout << title <<":";
printf(" instance:%d ",instance);
printf(" width:%d ",width);
printf(" height:%d ",height);
cout <<" picPerSec:"<<picPerSec;
switch(mpegType) {
case 1:
printf("I_FRAME ");
break;
case 2:
printf("P_FRAME ");
break;
case 3:
printf("B_FRAME ");
break;
case 4:
printf("D_FRAME ");
break;
default:
printf("<unknown> ");
}
printf("\n");
}
void YUVPicture::setPicturePerSecond(float val) {
this->picPerSec=val;
}
float YUVPicture::getPicturePerSecond() {
return picPerSec;
}
void YUVPicture::setStartTimeStamp(TimeStamp* aStamp) {
aStamp->copyTo(startTimeStamp);
}
TimeStamp* YUVPicture::getStartTimeStamp() {
return startTimeStamp;
}
void YUVPicture::setWaitTime(TimeStamp* aStamp) {
aStamp->copyTo(waitTime);
}
TimeStamp* YUVPicture::getWaitTime() {
return waitTime;
}
void YUVPicture::setEarlyTime(TimeStamp* earlyTime) {
this->earlyTime=earlyTime;
}
TimeStamp* YUVPicture::getEarlyTime() {
return earlyTime;
}
void YUVPicture::setMpegPictureType(int type) {
this->mpegType=type;
}
int YUVPicture::getMpegPictureType() {
return mpegType;
}
void YUVPicture::setImageType(int imageType) {
//
// Reset everything
//
if (imagePtr != NULL) {
delete [] imagePtr;
imagePtr=NULL;
}
this->imageType=imageType;
lumLength=0;
colorLength=0;
Cr_mode=NULL;
Cb_mode=NULL;
luminance_mode=NULL;
//
// YUV Images
//
if ( (imageType == PICTURE_YUVMODE_CR_CB) ||
(imageType == PICTURE_YUVMODE_CB_CR) ) {
lumLength=width * height;
colorLength=width * height / 4;
imageSize=lumLength+colorLength+colorLength;
// the 64 is some "security" space
imagePtr=new unsigned char[imageSize+64];
if (imagePtr == NULL) {
cout << "cannot create image"<<endl;
exit(0);
}
// now caculate pointers to start addresses of lum/Cr/Cb blocks
// we need the yuvPtr for direct dither in hardware
// this should save a memcpy
luminance = imagePtr;
Cr = imagePtr+lumLength;
Cb = imagePtr+lumLength+colorLength;
if ( (luminance == NULL) ||
(Cr == NULL) ||
(Cb == NULL) ) {
cout << "allocation luminance/Cr/Cb error"<<endl;
exit(0);
}
switch(imageType) {
case PICTURE_YUVMODE_CR_CB:
Cr_mode=Cr;
Cb_mode=Cb;
luminance_mode=imagePtr;
break;
case PICTURE_YUVMODE_CB_CR:
Cr_mode=Cb;
Cb_mode=Cr;
luminance_mode=imagePtr;
break;
default:
cout << "unknown yuv mode:"<<imageType<<endl;
}
}
else if ( (imageType == PICTURE_YUVMODE_YUY2) ||
(imageType == PICTURE_YUVMODE_UYVY) ) {
// these yuv-modes are packed
imageSize=width * height * 2;
// the 64 is some "security" space
imagePtr=new unsigned char[imageSize+64];
if (imagePtr == NULL) {
cout << "cannot create image"<<endl;
exit(0);
}
}
//
// RGB Imcdages
//
if ( (imageType == PICTURE_RGB) ||
(imageType == PICTURE_RGB_FLIPPED) ){
imageSize=width*height*4;
imagePtr=new unsigned char[imageSize];
}
memset(imagePtr,0,imageSize);
}
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