2 * originally by Andreas Ă–man (andoma)
3 * some changes by Alexander Strange
16 main(int argc, char **argv)
27 fprintf(stderr, "%s [YUV file 1] [YUV file 2] width height pixelcmp|blockdump (# to skip)\n", argv[0]);
31 width = atoi(argv[3]);
32 height = atoi(argv[4]);
34 to_skip = atoi(argv[6]);
36 uint8_t *Y[2], *C[2][2];
38 int lsiz = width * height;
39 int csiz = width * height / 4;
41 int cwidth = width / 2;
50 print_pixels = strstr(argv[5], "pixelcmp") ? 1 : 0;
51 dump_blocks = strstr(argv[5], "blockdump") ? 1 : 0;
53 for(i = 0; i < 2; i++) {
55 C[0][i] = malloc(csiz);
56 C[1][i] = malloc(csiz);
58 fd[i] = open(argv[1 + i], O_RDONLY);
63 fcntl(fd[i], F_NOCACHE, 1);
66 lseek(fd[i], to_skip * (lsiz + 2*csiz), SEEK_SET);
72 mberrors = malloc(mb_x * mb_y);
75 memset(mberrors, 0, mb_x * mb_y);
77 printf("Loading frame %d\n", ++fr);
79 for(i = 0; i < 2; i++) {
80 v = read(fd[i], Y[i], lsiz);
82 fprintf(stderr, "Unable to read Y from file %d, exiting\n", i + 1);
88 for(c = 0; c < lsiz; c++) {
89 if(Y[0][c] != Y[1][c]) {
93 mb = x / 16 + (y / 16) * mb_x;
96 printf("Luma diff 0x%02x != 0x%02x at pixel (%4d,%-4d) mb(%d,%d) #%d\n",
110 for(p = 0; p < 2; p++) {
112 for(i = 0; i < 2; i++) {
113 v = read(fd[i], C[p][i], csiz);
115 fprintf(stderr, "Unable to read %c from file %d, exiting\n",
121 for(c = 0; c < csiz; c++) {
122 if(C[p][0][c] != C[p][1][c]) {
126 mb = x / 8 + (y / 8) * mb_x;
128 mberrors[mb] |= 2 << p;
132 printf("c%c diff 0x%02x != 0x%02x at pixel (%4d,%-4d) "
133 "mb(%3d,%-3d) #%d\n",
141 x / 8 + y / 8 * cwidth / 8);
146 for(i = 0; i < mb_x * mb_y; i++) {
153 printf("MB (%3d,%-3d) %4d %d %c%c%c damaged\n",
154 x, y, i, mberrors[i],
155 mberrors[i] & 1 ? 'Y' : ' ',
156 mberrors[i] & 2 ? 'U' : ' ',
157 mberrors[i] & 4 ? 'V' : ' ');
160 a = Y[0] + x * 16 + y * 16 * width;
161 b = Y[1] + x * 16 + y * 16 * width;
163 for(y = 0; y < 16; y++) {
164 printf("%c ", "TB"[y&1]);
165 for(x = 0; x < 16; x++)
166 printf("%02x%c", a[x + y * width],
167 a[x + y * width] != b[x + y * width] ? '<' : ' ');
170 for(x = 0; x < 16; x++)
171 printf("%02x%c", b[x + y * width],
172 a[x + y * width] != b[x + y * width] ? '<' : ' ');