image.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:16k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /**************************************************************************
- *
- * XVID MPEG-4 VIDEO CODEC
- * image stuff
- *
- * This program is an implementation of a part of one or more MPEG-4
- * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
- * to use this software module in hardware or software products are
- * advised that its use may infringe existing patents or copyrights, and
- * any such use would be at such party's own risk. The original
- * developer of this software module and his/her company, and subsequent
- * editors and their companies, will have no liability for use of this
- * software or modifications or derivatives thereof.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *************************************************************************/
- /**************************************************************************
- *
- * History:
- *
- * 09.04.2002 PSNR calculations
- * 06.04.2002 removed interlaced edging from U,V blocks (as per spec)
- * 26.03.2002 interlacing support (field-based edging in set_edges)
- * 26.01.2002 rgb555, rgb565
- * 07.01.2001 commented u,v interpolation (not required for uv-block-based)
- * 23.12.2001 removed #ifdefs, added function pointers + init_common()
- * 22.12.2001 cpu #ifdefs
- * 19.12.2001 image_dump(); useful for debugging
- * 6.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au>
- *
- *************************************************************************/
- #include <stdlib.h>
- #include <string.h> // memcpy, memset
- #include <math.h>
- #include "../portab.h"
- #include "../xvid.h" // XVID_CSP_XXX's
- #include "image.h"
- #include "colorspace.h"
- #include "interpolate8x8.h"
- #include "../divx4.h"
- #include "../utils/mem_align.h"
- #define SAFETY 64
- #define EDGE_SIZE2 (EDGE_SIZE/2)
- int32_t image_create(IMAGE * image, uint32_t edged_width, uint32_t edged_height)
- {
- const uint32_t edged_width2 = edged_width / 2;
- const uint32_t edged_height2 = edged_height / 2;
- uint32_t i;
- image->y = xvid_malloc(edged_width * (edged_height + 1) + SAFETY, CACHE_LINE);
- if (image->y == NULL)
- {
- return -1;
- }
- for (i=0;i < edged_width * edged_height + SAFETY;i++)
- {
- image->y[i]=0;
- }
- image->u = xvid_malloc(edged_width2 * edged_height2 + SAFETY, CACHE_LINE);
- if (image->u == NULL)
- {
- xvid_free(image->y);
- return -1;
- }
- image->v = xvid_malloc(edged_width2 * edged_height2 + SAFETY, CACHE_LINE);
- if (image->v == NULL)
- {
- xvid_free(image->u);
- xvid_free(image->y);
- return -1;
- }
- image->y += EDGE_SIZE * edged_width + EDGE_SIZE;
- image->u += EDGE_SIZE2 * edged_width2 + EDGE_SIZE2;
- image->v += EDGE_SIZE2 * edged_width2 + EDGE_SIZE2;
- return 0;
- }
- void image_destroy(IMAGE * image, uint32_t edged_width, uint32_t edged_height)
- {
- const uint32_t edged_width2 = edged_width / 2;
- if (image->y)
- {
- xvid_free(image->y - (EDGE_SIZE * edged_width + EDGE_SIZE) );
- }
- if (image->u)
- {
- xvid_free(image->u - (EDGE_SIZE2 * edged_width2 + EDGE_SIZE2));
- }
- if (image->v)
- {
- xvid_free(image->v - (EDGE_SIZE2 * edged_width2 + EDGE_SIZE2));
- }
- }
- void image_swap(IMAGE * image1, IMAGE * image2)
- {
- uint8_t * tmp;
- tmp = image1->y;
- image1->y = image2->y;
- image2->y = tmp;
- tmp = image1->u;
- image1->u = image2->u;
- image2->u = tmp;
- tmp = image1->v;
- image1->v = image2->v;
- image2->v = tmp;
- }
- void image_copy(IMAGE *image1, IMAGE * image2, uint32_t edged_width, uint32_t height)
- {
- memcpy(image1->y, image2->y, edged_width * height);
- memcpy(image1->u, image2->u, edged_width * height / 4);
- memcpy(image1->v, image2->v, edged_width * height / 4);
- }
- void image_setedges(IMAGE * image, uint32_t edged_width, uint32_t edged_height, uint32_t width, uint32_t height, uint32_t interlacing)
- {
- const uint32_t edged_width2 = edged_width / 2;
- const uint32_t width2 = width / 2;
- uint32_t i;
- uint8_t * dst;
- uint8_t * src;
- dst = image->y - (EDGE_SIZE + EDGE_SIZE * edged_width);
- src = image->y;
- for (i = 0; i < EDGE_SIZE; i++)
- {
- // if interlacing, edges contain top-most data from each field
- if (interlacing && (i & 1))
- {
- memset(dst, *(src + edged_width), EDGE_SIZE);
- memcpy(dst + EDGE_SIZE, src + edged_width, width);
- memset(dst + edged_width - EDGE_SIZE, *(src + edged_width + width - 1), EDGE_SIZE);
- }
- else
- {
- memset(dst, *src, EDGE_SIZE);
- memcpy(dst + EDGE_SIZE, src, width);
- memset(dst + edged_width - EDGE_SIZE, *(src + width - 1), EDGE_SIZE);
- }
- dst += edged_width;
- }
- for (i = 0; i < height; i++)
- {
- memset(dst, *src, EDGE_SIZE);
- memset(dst + edged_width - EDGE_SIZE, src[width - 1], EDGE_SIZE);
- dst += edged_width;
- src += edged_width;
- }
- src -= edged_width;
- for (i = 0; i < EDGE_SIZE; i++)
- {
- // if interlacing, edges contain bottom-most data from each field
- if (interlacing && !(i & 1))
- {
- memset(dst, *(src - edged_width), EDGE_SIZE);
- memcpy(dst + EDGE_SIZE, src - edged_width, width);
- memset(dst + edged_width - EDGE_SIZE, *(src - edged_width + width - 1), EDGE_SIZE);
- }
- else
- {
- memset(dst, *src, EDGE_SIZE);
- memcpy(dst + EDGE_SIZE, src, width);
- memset(dst + edged_width - EDGE_SIZE, *(src + width - 1), EDGE_SIZE);
- }
- dst += edged_width;
- }
- //U
- dst = image->u - (EDGE_SIZE2 + EDGE_SIZE2 * edged_width2);
- src = image->u;
- for (i = 0; i < EDGE_SIZE2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memcpy(dst + EDGE_SIZE2, src, width2);
- memset(dst + edged_width2 - EDGE_SIZE2, *(src + width2 - 1), EDGE_SIZE2);
- dst += edged_width2;
- }
- for (i = 0; i < height / 2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memset(dst + edged_width2 - EDGE_SIZE2, src[width2 - 1], EDGE_SIZE2);
- dst += edged_width2;
- src += edged_width2;
- }
- src -= edged_width2;
- for (i = 0; i < EDGE_SIZE2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memcpy(dst + EDGE_SIZE2, src, width2);
- memset(dst + edged_width2 - EDGE_SIZE2, *(src + width2 - 1), EDGE_SIZE2);
- dst += edged_width2;
- }
- // V
- dst = image->v - (EDGE_SIZE2 + EDGE_SIZE2 * edged_width2);
- src = image->v;
- for (i = 0; i < EDGE_SIZE2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memcpy(dst + EDGE_SIZE2, src, width2);
- memset(dst + edged_width2 - EDGE_SIZE2, *(src + width2 - 1), EDGE_SIZE2);
- dst += edged_width2;
- }
- for (i = 0; i < height / 2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memset(dst + edged_width2 - EDGE_SIZE2, src[width2 - 1], EDGE_SIZE2);
- dst += edged_width2;
- src += edged_width2;
- }
- src -= edged_width2;
- for (i = 0; i < EDGE_SIZE2; i++)
- {
- memset(dst, *src, EDGE_SIZE2);
- memcpy(dst + EDGE_SIZE2, src, width2);
- memset(dst + edged_width2 - EDGE_SIZE2, *(src + width2 - 1), EDGE_SIZE2);
- dst += edged_width2;
- }
- }
- void image_interpolate(const IMAGE * refn,
- IMAGE * refh, IMAGE * refv, IMAGE * refhv,
- uint32_t edged_width, uint32_t edged_height, uint32_t rounding)
- {
- uint32_t offset;
- uint8_t *n_ptr, *h_ptr, *v_ptr, *hv_ptr;
- uint32_t x,y;
- uint32_t stride_add = 7 * edged_width;
- offset = EDGE_SIZE * (edged_width + 1);
- n_ptr = refn->y;
- h_ptr = refh->y;
- v_ptr = refv->y;
- hv_ptr = refhv->y;
- n_ptr -= offset;
- h_ptr -= offset;
- v_ptr -= offset;
- hv_ptr -= offset;
- for(y = 0; y < edged_height; y = y + 8) {
- for(x = 0; x < edged_width; x = x + 8) {
- interpolate8x8_halfpel_h(h_ptr, n_ptr, edged_width, rounding);
- interpolate8x8_halfpel_v(v_ptr, n_ptr, edged_width, rounding);
- interpolate8x8_halfpel_hv(hv_ptr, n_ptr, edged_width, rounding);
- n_ptr += 8;
- h_ptr += 8;
- v_ptr += 8;
- hv_ptr += 8;
- }
- h_ptr += stride_add;
- v_ptr += stride_add;
- hv_ptr += stride_add;
- n_ptr += stride_add;
- }
- /*
- interpolate_halfpel_h(
- refh->y - offset,
- refn->y - offset,
- edged_width, edged_height,
- rounding);
- interpolate_halfpel_v(
- refv->y - offset,
- refn->y - offset,
- edged_width, edged_height,
- rounding);
- interpolate_halfpel_hv(
- refhv->y - offset,
- refn->y - offset,
- edged_width, edged_height,
- rounding);
- */
- /* uv-image-based compensation
- offset = EDGE_SIZE2 * (edged_width / 2 + 1);
- interpolate_halfpel_h(
- refh->u - offset,
- refn->u - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- interpolate_halfpel_v(
- refv->u - offset,
- refn->u - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- interpolate_halfpel_hv(
- refhv->u - offset,
- refn->u - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- interpolate_halfpel_h(
- refh->v - offset,
- refn->v - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- interpolate_halfpel_v(
- refv->v - offset,
- refn->v - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- interpolate_halfpel_hv(
- refhv->v - offset,
- refn->v - offset,
- edged_width / 2, edged_height / 2,
- rounding);
- */
- }
- int image_input(IMAGE * image, uint32_t width, int height,
- uint32_t edged_width, uint8_t * src, int csp)
- {
- /* if (csp & XVID_CSP_VFLIP)
- {
- height = -height;
- }
- */
- switch(csp & ~XVID_CSP_VFLIP)
- {
- case XVID_CSP_RGB555 :
- rgb555_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_RGB565 :
- rgb565_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_RGB24 :
- rgb24_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_RGB32 :
- rgb32_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_I420 :
- yuv_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_YV12 : /* u/v swapped */
- yuv_to_yv12(image->y, image->v, image->u, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_YUY2 :
- yuyv_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_YVYU : /* u/v swapped */
- yuyv_to_yv12(image->y, image->v, image->u, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_UYVY :
- uyvy_to_yv12(image->y, image->u, image->v, src,
- width, height, edged_width);
- return 0;
- case XVID_CSP_NULL :
- break;
- }
- return -1;
- }
- int image_output(IMAGE * image, uint32_t width, int height, uint32_t edged_width,
- uint8_t * dst, uint32_t dst_stride, int csp)
- {
- if (csp & XVID_CSP_VFLIP)
- {
- height = -height;
- }
- switch(csp & ~XVID_CSP_VFLIP)
- {
- case XVID_CSP_RGB555 :
- yv12_to_rgb555(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_RGB565 :
- yv12_to_rgb565(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_RGB24 :
- yv12_to_rgb24(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_RGB32 :
- yv12_to_rgb32(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_I420 :
- yv12_to_yuv(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_YV12 : // u,v swapped
- yv12_to_yuv(dst, dst_stride,
- image->y, image->v, image->u, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_YUY2 :
- yv12_to_yuyv(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_YVYU : // u,v swapped
- yv12_to_yuyv(dst, dst_stride,
- image->y, image->v, image->u, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_UYVY :
- yv12_to_uyvy(dst, dst_stride,
- image->y, image->u, image->v, edged_width, edged_width / 2,
- width, height);
- return 0;
- case XVID_CSP_USER :
- ((DEC_PICTURE*)dst)->y = image->y;
- ((DEC_PICTURE*)dst)->u = image->u;
- ((DEC_PICTURE*)dst)->v = image->v;
- ((DEC_PICTURE*)dst)->stride_y = edged_width;
- ((DEC_PICTURE*)dst)->stride_uv = edged_width/2;
- return 0;
- case XVID_CSP_NULL :
- return 0;
- }
- return -1;
- }
- float image_psnr(IMAGE *orig_image, IMAGE *recon_image,
- uint16_t stride, uint16_t width, uint16_t height)
- {
- int32_t diff, x, y, quad = 0;
- uint8_t *orig = orig_image->y;
- uint8_t *recon = recon_image->y;
- float psnr_y;
- for (y = 0; y < height; y++) {
- for (x = 0; x < width; x++) {
- diff = *(orig + x) - *(recon + x);
- quad += diff*diff;
- }
- orig += stride;
- recon += stride;
- }
- psnr_y = (float) quad / (float) (width * height);
- if (psnr_y) {
- psnr_y = (float) (255 * 255) / psnr_y;
- psnr_y = 10 * (float) log10 (psnr_y);
- }
- else
- psnr_y = (float) 99.99;
- return psnr_y;
- }
- #include <stdio.h>
- #include <string.h>
- int image_dump_pgm(uint8_t * bmp, uint32_t width, uint32_t height, char * filename)
- {
- FILE * f;
- char hdr[1024];
- f = fopen(filename, "wb");
- if ( f == NULL)
- {
- return -1;
- }
- sprintf(hdr, "P5n#xvidn%i %in255n", width, height);
- fwrite(hdr, strlen(hdr), 1, f);
- fwrite(bmp, width, height, f);
- fclose(f);
- return 0;
- }
- /* dump image+edges to yuv pgm files */
- int image_dump(IMAGE * image, uint32_t edged_width, uint32_t edged_height, char * path, int number)
- {
- char filename[1024];
- sprintf(filename, "%s_%i_%c.pgm", path, number, 'y');
- image_dump_pgm(
- image->y - (EDGE_SIZE * edged_width + EDGE_SIZE),
- edged_width, edged_height, filename);
- sprintf(filename, "%s_%i_%c.pgm", path, number, 'u');
- image_dump_pgm(
- image->u - (EDGE_SIZE2 * edged_width / 2 + EDGE_SIZE2),
- edged_width / 2, edged_height / 2, filename);
- sprintf(filename, "%s_%i_%c.pgm", path, number, 'v');
- image_dump_pgm(
- image->v - (EDGE_SIZE2 * edged_width / 2 + EDGE_SIZE2),
- edged_width / 2, edged_height / 2, filename);
- return 0;
- }
- #ifdef MPEG4IP
- int yuv_input(
- IMAGE * image,
- uint32_t width,
- uint32_t height,
- uint32_t stride_out,
- uint8_t *y_in,
- uint8_t *u_in,
- uint8_t *v_in,
- uint32_t stride_in,
- int csp)
- {
- uint8_t* y_out = image->y;
- uint8_t* u_out = image->u;
- uint8_t* v_out = image->v;
- uint32_t stridein2 = stride_in >> 1;
- uint32_t strideout2 = stride_out >> 1;
- uint32_t width2 = width >> 1;
- uint32_t y;
- for (y = height; y; y--) {
- memcpy(y_out, y_in, width);
- y_in += stride_in;
- y_out += stride_out;
- }
- for (y = height >> 1; y; y--) {
- memcpy(u_out, u_in, width2);
- u_in += stridein2;
- u_out += strideout2;
- }
- for (y = height >> 1; y; y--) {
- memcpy(v_out, v_in, width2);
- v_in += stridein2;
- v_out+= strideout2;
- }
- return 0;
- }
- #endif