1 files changed, 253 insertions, 0 deletions
diff --git a/mpeglib/lib/util/render/yuvPicture.cpp b/mpeglib/lib/util/render/yuvPicture.cpp
new file mode 100644
index 00000000..e79d3bde
--- /dev/null
+++ b/mpeglib/lib/util/render/yuvPicture.cpp
@@ -0,0 +1,253 @@
+/*
+  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);
+}