2 * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #undef HAVE_AV_CONFIG_H
30 #include "swscale_internal.h"
33 static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
37 //printf("%d %d\n", w, h);
41 int d= src1[x + y*stride1] - src2[x + y*stride2];
43 //printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
50 // test by ref -> src -> dst -> out & compare out against ref
52 static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
53 int srcW, int srcH, int dstW, int dstH, int flags){
57 int srcStride[3], dstStride[3];
59 uint64_t ssdY, ssdU, ssdV;
60 struct SwsContext *srcContext, *dstContext, *outContext;
65 // avoid stride % bpp != 0
66 if (srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)
71 if (dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24)
76 src[i]= (uint8_t*) malloc(srcStride[i]*srcH);
77 dst[i]= (uint8_t*) malloc(dstStride[i]*dstH);
78 out[i]= (uint8_t*) malloc(refStride[i]*h);
79 if ((src[i] == NULL) || (dst[i] == NULL) || (out[i] == NULL)) {
87 dstContext = outContext = NULL;
88 srcContext= sws_getContext(w, h, PIX_FMT_YUV420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
89 if (srcContext == NULL) {
90 fprintf(stderr, "Failed to get %s ---> %s\n",
91 sws_format_name(PIX_FMT_YUV420P),
92 sws_format_name(srcFormat));
97 dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
98 if (dstContext == NULL) {
99 fprintf(stderr, "Failed to get %s ---> %s\n",
100 sws_format_name(srcFormat),
101 sws_format_name(dstFormat));
106 outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
107 if (outContext == NULL) {
108 fprintf(stderr, "Failed to get %s ---> %s\n",
109 sws_format_name(dstFormat),
110 sws_format_name(PIX_FMT_YUV420P));
115 // printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
116 // (int)src[0], (int)src[1], (int)src[2]);
118 sws_scale(srcContext, ref, refStride, 0, h , src, srcStride);
119 sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
120 sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
122 #if defined(ARCH_X86)
123 asm volatile ("emms\n\t");
126 ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
127 ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
128 ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
130 if (srcFormat == PIX_FMT_GRAY8 || dstFormat==PIX_FMT_GRAY8) ssdU=ssdV=0; //FIXME check that output is really gray
136 if (ssdY>100 || ssdU>100 || ssdV>100){
137 printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n",
138 sws_format_name(srcFormat), srcW, srcH,
139 sws_format_name(dstFormat), dstW, dstH,
146 sws_freeContext(srcContext);
147 sws_freeContext(dstContext);
148 sws_freeContext(outContext);
159 void fast_memcpy(void *a, void *b, int s){ //FIXME
163 static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
164 enum PixelFormat srcFormat, dstFormat;
165 int srcW, srcH, dstW, dstH;
168 for (srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) {
169 for (dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) {
171 sws_format_name(srcFormat),
172 sws_format_name(dstFormat));
176 for (dstW=w - w/3; dstW<= 4*w/3; dstW+= w/3){
177 for (dstH=h - h/3; dstH<= 4*h/3; dstH+= h/3){
178 for (flags=1; flags<33; flags*=2) {
181 res = doTest(src, stride, w, h, srcFormat, dstFormat,
182 srcW, srcH, dstW, dstH, flags);
198 int main(int argc, char **argv){
199 uint8_t *rgb_data = malloc (W*H*4);
200 uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
201 int rgb_stride[3]={4*W, 0, 0};
202 uint8_t *data = malloc (3*W*H);
203 uint8_t *src[3]= {data, data+W*H, data+W*H*2};
204 int stride[3]={W, W, W};
206 struct SwsContext *sws;
208 sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL);
211 for (x=0; x<W*4; x++){
212 rgb_data[ x + y*4*W]= random();
215 #if defined(ARCH_X86)
216 sws_rgb2rgb_init(SWS_CPU_CAPS_MMX*0);
220 sws_scale(sws, rgb_src, rgb_stride, 0, H , src, stride);
222 #if defined(ARCH_X86)
223 asm volatile ("emms\n\t");
226 selfTest(src, stride, W, H);