mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-15 05:45:14 +02:00
185 lines
4.7 KiB
C
185 lines
4.7 KiB
C
/*
|
|
* originally by Andreas Öman (andoma)
|
|
* some changes by Alexander Strange
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <inttypes.h>
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int fd[2];
|
|
int print_pixels = 0;
|
|
int dump_blocks = 0;
|
|
|
|
int width;
|
|
int height;
|
|
int to_skip = 0;
|
|
|
|
if (argc < 6) {
|
|
fprintf(stderr, "%s [YUV file 1] [YUV file 2] width height pixelcmp|blockdump (# to skip)\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
width = atoi(argv[3]);
|
|
height = atoi(argv[4]);
|
|
if (argc > 6)
|
|
to_skip = atoi(argv[6]);
|
|
|
|
uint8_t *Y[2], *C[2][2];
|
|
int i, v, c, p;
|
|
int lsiz = width * height;
|
|
int csiz = width * height / 4;
|
|
int x, y;
|
|
int cwidth = width / 2;
|
|
int fr = to_skip;
|
|
int mb;
|
|
char *mberrors;
|
|
int mb_x, mb_y;
|
|
uint8_t *a;
|
|
uint8_t *b;
|
|
int die = 0;
|
|
|
|
print_pixels = strstr(argv[5], "pixelcmp") ? 1 : 0;
|
|
dump_blocks = strstr(argv[5], "blockdump") ? 1 : 0;
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
Y[i] = malloc(lsiz);
|
|
C[0][i] = malloc(csiz);
|
|
C[1][i] = malloc(csiz);
|
|
|
|
fd[i] = open(argv[1 + i], O_RDONLY);
|
|
if(fd[i] == -1) {
|
|
perror("open");
|
|
exit(1);
|
|
}
|
|
fcntl(fd[i], F_NOCACHE, 1);
|
|
|
|
if (to_skip)
|
|
lseek(fd[i], to_skip * (lsiz + 2*csiz), SEEK_SET);
|
|
}
|
|
|
|
mb_x = width / 16;
|
|
mb_y = height / 16;
|
|
|
|
mberrors = malloc(mb_x * mb_y);
|
|
|
|
while(!die) {
|
|
memset(mberrors, 0, mb_x * mb_y);
|
|
|
|
printf("Loading frame %d\n", ++fr);
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
v = read(fd[i], Y[i], lsiz);
|
|
if(v != lsiz) {
|
|
fprintf(stderr, "Unable to read Y from file %d, exiting\n", i + 1);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
for(c = 0; c < lsiz; c++) {
|
|
if(Y[0][c] != Y[1][c]) {
|
|
x = c % width;
|
|
y = c / width;
|
|
|
|
mb = x / 16 + (y / 16) * mb_x;
|
|
|
|
if(print_pixels)
|
|
printf("Luma diff 0x%02x != 0x%02x at pixel (%4d,%-4d) mb(%d,%d) #%d\n",
|
|
Y[0][c],
|
|
Y[1][c],
|
|
x, y,
|
|
x / 16,
|
|
y / 16,
|
|
mb);
|
|
|
|
mberrors[mb] |= 1;
|
|
}
|
|
}
|
|
|
|
/* Chroma planes */
|
|
|
|
for(p = 0; p < 2; p++) {
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
v = read(fd[i], C[p][i], csiz);
|
|
if(v != csiz) {
|
|
fprintf(stderr, "Unable to read %c from file %d, exiting\n",
|
|
"UV"[p], i + 1);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
for(c = 0; c < csiz; c++) {
|
|
if(C[p][0][c] != C[p][1][c]) {
|
|
x = c % cwidth;
|
|
y = c / cwidth;
|
|
|
|
mb = x / 8 + (y / 8) * mb_x;
|
|
|
|
mberrors[mb] |= 2 << p;
|
|
|
|
if(print_pixels)
|
|
|
|
printf("c%c diff 0x%02x != 0x%02x at pixel (%4d,%-4d) "
|
|
"mb(%3d,%-3d) #%d\n",
|
|
p ? 'r' : 'b',
|
|
C[p][0][c],
|
|
C[p][1][c],
|
|
|
|
x, y,
|
|
x / 8,
|
|
y / 8,
|
|
x / 8 + y / 8 * cwidth / 8);
|
|
}
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < mb_x * mb_y; i++) {
|
|
x = i % mb_x;
|
|
y = i / mb_x;
|
|
|
|
if(mberrors[i]) {
|
|
die = 1;
|
|
|
|
printf("MB (%3d,%-3d) %4d %d %c%c%c damaged\n",
|
|
x, y, i, mberrors[i],
|
|
mberrors[i] & 1 ? 'Y' : ' ',
|
|
mberrors[i] & 2 ? 'U' : ' ',
|
|
mberrors[i] & 4 ? 'V' : ' ');
|
|
|
|
if(dump_blocks) {
|
|
a = Y[0] + x * 16 + y * 16 * width;
|
|
b = Y[1] + x * 16 + y * 16 * width;
|
|
|
|
for(y = 0; y < 16; y++) {
|
|
printf("%c ", "TB"[y&1]);
|
|
for(x = 0; x < 16; x++)
|
|
printf("%02x%c", a[x + y * width],
|
|
a[x + y * width] != b[x + y * width] ? '<' : ' ');
|
|
|
|
printf("| ");
|
|
for(x = 0; x < 16; x++)
|
|
printf("%02x%c", b[x + y * width],
|
|
a[x + y * width] != b[x + y * width] ? '<' : ' ');
|
|
|
|
printf("\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|