Store.cpp
资源名称:263.rar [点击查看]
上传用户:szklck
上传日期:2007-01-22
资源大小:925k
文件大小:10k
源码类别:
图形图像处理
开发平台:
Visual C++
- // Store.cpp: implementation of the CStore class.
- //
- //////////////////////////////////////////////////////////////////////
- #include "stdafx.h"
- #include "视频编解码器.h"
- #include "Store.h"
- #ifdef _DEBUG
- #undef THIS_FILE
- static char THIS_FILE[]=__FILE__;
- #define new DEBUG_NEW
- #endif
- //////////////////////////////////////////////////////////////////////
- // Construction/Destruction
- //////////////////////////////////////////////////////////////////////
- #define OBFRSIZE 4096
- static unsigned char obfr[OBFRSIZE];
- static unsigned char *optr;
- static int outfile;
- extern unsigned char *clp;
- extern int outtype,horizontal_size,coded_picture_width,coded_picture_height;
- extern int quiet,vertical_size;
- CStore::CStore()
- {
- }
- CStore::~CStore()
- {
- }
- // store a picture as either one frame or two fields
- void CStore::storeframe(unsigned char *src[], int frame)
- {
- char outname[8]="D:\测试";
- //outname=
- store_one(outname,src,0,coded_picture_width,vertical_size);
- }
- void CStore::store_one(char *outname, unsigned char *src[],
- int offset, int incr, int height)
- {
- switch (outtype)
- {
- case T_BMP:
- store_bmp(outname,src,offset,incr,height);
- break;
- case T_YUV:
- // store_yuv(outname,src,offset,incr,height);
- break;
- case T_YUV_CONC:
- // store_yuv_append(outname,src,offset,incr,height);
- break;
- case T_SIF:
- // store_sif(outname,src,offset,incr,height);
- break;
- case T_TGA:
- // store_ppm_tga(outname,src,offset,incr,height,1);
- break;
- case T_PPM:
- // store_ppm_tga(outname,src,offset,incr,height,0);
- break;
- #ifdef DISPLAY
- case T_X11:
- dither(src);
- break;
- #endif
- default:
- break;
- }
- }
- void CStore::store_bmp(char *outname, unsigned char *src[],
- int offset, int incr, int height)
- {
- }
- /*
- //没有文件头的Y U V格式文件
- void CStore::store_yuv(char *outname, unsigned char *src[],
- int offset, int incr, int height)
- {
- int hsize;
- char tmpname[32];
- hsize = horizontal_size;
- sprintf(tmpname,"%s.Y",outname);
- store_yuv1(tmpname,src[0],offset,incr,hsize,height,0);
- offset>>=1; incr>>=1; hsize>>=1;
- height>>=1;
- sprintf(tmpname,"%s.U",outname);
- store_yuv1(tmpname,src[1],offset,incr,hsize,height,0);
- sprintf(tmpname,"%s.V",outname);
- store_yuv1(tmpname,src[2],offset,incr,hsize,height,0);
- }
- //有文件头的YUV格式的文件
- void CStore::store_yuv_append(char *outname, unsigned char *src[], int offset, int incr, int height)
- {
- int hsize;
- hsize = horizontal_size;
- store_yuv1(outname,src[0],offset,incr,hsize,height,1);
- offset>>=1; incr>>=1; hsize>>=1;
- height>>=1;
- store_yuv1(outname,src[1],offset,incr,hsize,height,1);
- store_yuv1(outname,src[2],offset,incr,hsize,height,1);
- }
- void CStore::store_sif(char *outname, unsigned char *src[], int offset, int incr, int height)
- {
- int i,j;
- unsigned char *py, *pu, *pv;
- static unsigned char *u422, *v422;
- if (!u422)
- {
- if (!(u422 = (unsigned char *)malloc((coded_picture_width>>1)
- *coded_picture_height)))
- {
- AfxMessageBox("malloc failed!");
- return;
- }
- if (!(v422 = (unsigned char *)malloc((coded_picture_width>>1)
- *coded_picture_height)))
- {
- AfxMessageBox("malloc failed!");
- return;
- }
- }
- conv420to422(src[1],u422);
- conv420to422(src[2],v422);
- strcat(outname,".SIF");
- if (!quiet)
- fprintf(stderr,"saving %sn",outname);
- if ((outfile = open(outname,O_CREAT|O_TRUNC|O_WRONLY|O_BINARY,0666))==-1)
- {
- AfxMessageBox("Couldn't create outname!");
- }
- optr = obfr;
- for (i=0; i<height; i++)
- {
- py = src[0] + offset + incr*i;
- pu = u422 + (offset>>1) + (incr>>1)*i;
- pv = v422 + (offset>>1) + (incr>>1)*i;
- for (j=0; j<horizontal_size; j+=2)
- {
- putbyte(*pu++);
- putbyte(*py++);
- putbyte(*pv++);
- putbyte(*py++);
- }
- }
- if (optr!=obfr)
- write(outfile,obfr,optr-obfr);
- close(outfile);
- }
- void CStore::store_ppm_tga(char *outname, unsigned char *src[], int offset, int incr, int height, int tgaflag)
- {
- int i, j;
- int y, u, v, r, g, b;
- int crv, cbu, cgu, cgv;
- unsigned char *py, *pu, *pv;
- static unsigned char tga24[14] = {0,0,2,0,0,0,0, 0,0,0,0,0,24,32};
- char header[32];
- static unsigned char *u422, *v422, *u444, *v444;
- if (!u444) {
- if (!(u422 = (unsigned char *)malloc((coded_picture_width>>1)
- *coded_picture_height)))
- error("malloc failed");
- if (!(v422 = (unsigned char *)malloc((coded_picture_width>>1)
- *coded_picture_height)))
- error("malloc failed");
- if (!(u444 = (unsigned char *)malloc(coded_picture_width
- *coded_picture_height)))
- error("malloc failed");
- if (!(v444 = (unsigned char *)malloc(coded_picture_width
- *coded_picture_height)))
- error("malloc failed");
- }
- conv420to422(src[1],u422);
- conv420to422(src[2],v422);
- conv422to444(u422,u444);
- conv422to444(v422,v444);
- strcat(outname,tgaflag ? ".tga" : ".ppm");
- if (!quiet)
- fprintf(stderr,"saving %sn",outname);
- if ((outfile = open(outname,O_CREAT|O_TRUNC|O_WRONLY|O_BINARY,0666))==-1)
- {
- sprintf(errortext,"Couldn't create %sn",outname);
- error(errortext);
- }
- optr = obfr;
- if (tgaflag) {
- //* TGA header
- for (i=0; i<12; i++)
- putbyte(tga24[i]);
- putword(horizontal_size); putword(height);
- putbyte(tga24[12]); putbyte(tga24[13]);
- }
- else {
- // PPM header
- sprintf(header,"P6n%d %dn255n",horizontal_size,height);
- for (i=0; header[i]!=0; i++)
- putbyte(header[i]);
- }
- //* matrix coefficients
- crv = convmat[matrix_coefficients][0];
- cbu = convmat[matrix_coefficients][1];
- cgu = convmat[matrix_coefficients][2];
- cgv = convmat[matrix_coefficients][3];
- for (i=0; i<height; i++)
- {
- py = src[0] + offset + incr*i;
- pu = u444 + offset + incr*i;
- pv = v444 + offset + incr*i;
- for (j=0; j<horizontal_size; j++)
- {
- u = *pu++ - 128;
- v = *pv++ - 128;
- y = 76309 * (*py++ - 16); //* (255/219)*65536
- r = clp[(y + crv*v + 32768)>>16];
- g = clp[(y - cgu*u - cgv*v + 32768)>>16];
- b = clp[(y + cbu*u + 32786)>>16];
- if (tgaflag)
- {
- putbyte(b);
- putbyte(g);
- putbyte(r);
- }
- else
- {
- putbyte(r);
- putbyte(g);
- putbyte(b);
- }
- }
- }
- if (optr!=obfr)
- write(outfile,obfr,optr-obfr);
- close(outfile);
- }
- void CStore::store_yuv1(char *name, unsigned char *src, int offset, int incr, int width, int height, int append)
- {
- int i, j;
- unsigned char *p;
- if (append)
- {
- if ((outfile = open(name,O_APPEND|O_WRONLY|O_BINARY,0666))==-1)
- {
- sprintf(errortext,"Couldn't append to %sn",name);
- error(errortext);
- }
- }
- else
- {
- if ((outfile = open(name,O_CREAT|O_TRUNC|O_WRONLY|O_BINARY,0666))==-1)
- {
- AfxMessageBox("Couldn't create file name!");
- error(errortext);
- }
- }
- if (!quiet)
- AfxMessageBox("saving file!");
- optr=obfr;
- for (i=0; i<height; i++)
- {
- p = src + offset + incr*i;
- for (j=0; j<width; j++)
- putbyte(*p++);
- }
- if (optr!=obfr)
- write(outfile,obfr,optr-obfr);
- close(outfile);
- }
- */
- void CStore::putbyte(int c)
- {
- *optr++ = c;
- if (optr == obfr+OBFRSIZE)
- {
- // write(outfile,obfr,OBFRSIZE);
- optr = obfr;
- }
- }
- void CStore::putword(int w)
- {
- putbyte(w);
- putbyte(w>>8);
- }
- // 将420格式的文件转化为444的文件
- // 1.垂直插值 422
- // 2.水平插值
- // 水平方向的插值 1:2 interpolation filter
- void CStore::conv422to444(unsigned char *src, unsigned char *dst)
- {
- int i, i2, w, j, im3, im2, im1, ip1, ip2, ip3;
- w = coded_picture_width>>1;
- for (j=0; j<coded_picture_height; j++)
- {
- for (i=0; i<w; i++)
- {
- i2 = i<<1;
- im3 = (i<3) ? 0 : i-3; //左右边界
- im2 = (i<2) ? 0 : i-2;
- im1 = (i<1) ? 0 : i-1;
- ip1 = (i<w-1) ? i+1 : w-1;
- ip2 = (i<w-2) ? i+2 : w-1;
- ip3 = (i<w-3) ? i+3 : w-1;
- // FIR filter coefficients (*256): 5 -21 70 228 -37 11
- dst[i2] = clp[(int)( 5*src[im3]
- -21*src[im2]
- +70*src[im1]
- +228*src[i]
- -37*src[ip1]
- +11*src[ip2]+128)>>8];
- dst[i2+1] = clp[(int)( 5*src[ip3]
- -21*src[ip2]
- +70*src[ip1]
- +228*src[i]
- -37*src[im1]
- +11*src[im2]+128)>>8];
- }
- src+= w;
- dst+= coded_picture_width;
- }
- }
- // 垂直方向的插值 1:2 interpolation filter
- void CStore::conv420to422(unsigned char *src, unsigned char *dst)
- {
- int w, h, i, j, j2;
- int jm3, jm2, jm1, jp1, jp2, jp3;
- w = coded_picture_width>>1;
- h = coded_picture_height>>1;
- /* intra frame */
- for (i=0; i<w; i++)
- {
- for (j=0; j<h; j++)
- {
- j2 = j<<1;//
- jm3 = (j<3) ? 0 : j-3;//边界点
- jm2 = (j<2) ? 0 : j-2;
- jm1 = (j<1) ? 0 : j-1;
- jp1 = (j<h-1) ? j+1 : h-1;//边界点
- jp2 = (j<h-2) ? j+2 : h-1;
- jp3 = (j<h-3) ? j+3 : h-1;
- // 进行平滑滤波
- //FIR filter coefficients (*256): 5 -21 70 228 -37 11
- // New FIR filter coefficients (*256): 3 -16 67 227 -32 7
- dst[w*j2] =clp[(int)( 3*src[w*jm3]
- -16*src[w*jm2]
- +67*src[w*jm1]
- +227*src[w*j]
- -32*src[w*jp1]
- +7*src[w*jp2]+128)>>8];
- dst[w*(j2+1)] = clp[(int)( 3*src[w*jp3]
- -16*src[w*jp2]
- +67*src[w*jp1]
- +227*src[w*j]
- -32*src[w*jm1]
- +7*src[w*jm2]+128)>>8];
- }
- src++;
- dst++;
- }
- }
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