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support comparing files with some posiion offset relative to each other 

Originally committed as revision 3921 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-02-01 20:32:47 +00:00
parent c342499df2
commit ba96e97fdd
1 changed files with 5 additions and 2 deletions
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7
tests/tiny_psnr.c
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@ -18,6 +18,7 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <assert.h>
@ -102,16 +103,18 @@ int main(int argc,char* argv[]){
FILE *f[2];
uint8_t buf[2][SIZE];
uint64_t psnr;
int len= argc<4 ? 1 : 2;
int len= argc<4 ? 1 : atoi(argv[3]);
int64_t max= (1<<(8*len))-1;
int shift= argc<5 ? 0 : atoi(argv[4]);
if(argc<3){
printf("tiny_psnr <file1> <file2>\n");
printf("tiny_psnr <file1> <file2> [<elem size> [<shift>]]\n");
return -1;
}
f[0]= fopen(argv[1], "rb");
f[1]= fopen(argv[2], "rb");
fseek(f[shift<0], shift < 0 ? -shift : shift, SEEK_SET);
for(i=0;;){
if( fread(buf[0], SIZE, 1, f[0]) != 1) break;