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tests: K&R formatting cosmetics for test programs

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This commit is contained in:
Gaurav Narula
2012-01-18 20:51:54 +01:00
committed by Diego Biurrun
parent aa2e4bb058
commit b481bbc32a
5 changed files with 257 additions and 244 deletions
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171
tests/tiny_psnr.c
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@@ -24,92 +24,95 @@
#include <inttypes.h>
#include <assert.h>
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
#define FFMIN(a, b) ((a) > (b) ? (b) : (a))
#define F 100
#define SIZE 2048
uint64_t exp16_table[21]={
65537,
65538,
65540,
65544,
65552,
65568,
65600,
65664,
65793,
66050,
66568,
67616,
69763,
74262,
84150,
108051,
178145,
484249,
3578144,
195360063,
582360139072LL,
uint64_t exp16_table[21] = {
65537,
65538,
65540,
65544,
65552,
65568,
65600,
65664,
65793,
66050,
66568,
67616,
69763,
74262,
84150,
108051,
178145,
484249,
3578144,
195360063,
582360139072LL,
};
// 16.16 fixpoint log()
static int64_t log16(uint64_t a){
static int64_t log16(uint64_t a)
{
int i;
int out=0;
int out = 0;
if(a < 1<<16)
return -log16((1LL<<32) / a);
a<<=16;
if (a < 1 << 16)
return -log16((1LL << 32) / a);
a <<= 16;
for(i=20;i>=0;i--){
int64_t b= exp16_table[i];
if(a<(b<<16)) continue;
out |= 1<<i;
a = ((a/b)<<16) + (((a%b)<<16) + b/2)/b;
for (i = 20; i >= 0; i--) {
int64_t b = exp16_table[i];
if (a < (b << 16))
continue;
out |= 1 << i;
a = ((a / b) << 16) + (((a % b) << 16) + b / 2) / b;
}
return out;
}
static uint64_t int_sqrt(uint64_t a)
{
uint64_t ret=0;
uint64_t ret = 0;
uint64_t ret_sq = 0;
int s;
uint64_t ret_sq=0;
for(s=31; s>=0; s--){
uint64_t b= ret_sq + (1ULL<<(s*2)) + (ret<<s)*2;
if(b<=a){
ret_sq=b;
ret+= 1ULL<<s;
for (s = 31; s >= 0; s--) {
uint64_t b = ret_sq + (1ULL << (s * 2)) + (ret << s) * 2;
if (b <= a) {
ret_sq = b;
ret += 1ULL << s;
}
}
return ret;
}
int main(int argc,char* argv[]){
int main(int argc, char *argv[])
{
int i, j;
uint64_t sse=0;
uint64_t sse = 0;
uint64_t dev;
FILE *f[2];
uint8_t buf[2][SIZE];
uint64_t psnr;
int len= argc<4 ? 1 : atoi(argv[3]);
int64_t max= (1<<(8*len))-1;
int shift= argc<5 ? 0 : atoi(argv[4]);
int skip_bytes = argc<6 ? 0 : atoi(argv[5]);
int size0=0;
int size1=0;
int maxdist = 0;
int len = argc < 4 ? 1 : atoi(argv[3]);
int64_t max = (1 << (8 * len)) - 1;
int shift = argc < 5 ? 0 : atoi(argv[4]);
int skip_bytes = argc < 6 ? 0 : atoi(argv[5]);
int size0 = 0;
int size1 = 0;
int maxdist = 0;
if(argc<3){
if (argc < 3) {
printf("tiny_psnr <file1> <file2> [<elem size> [<shift> [<skip bytes>]]]\n");
printf("WAV headers are skipped automatically.\n");
return 1;
}
f[0]= fopen(argv[1], "rb");
f[1]= fopen(argv[2], "rb");
if(!f[0] || !f[1]){
f[0] = fopen(argv[1], "rb");
f[1] = fopen(argv[2], "rb");
if (!f[0] || !f[1]) {
fprintf(stderr, "Could not open input files.\n");
return 1;
}
@@ -118,12 +121,12 @@ int main(int argc,char* argv[]){
uint8_t *p = buf[i];
if (fread(p, 1, 12, f[i]) != 12)
return 1;
if (!memcmp(p, "RIFF", 4) &&
!memcmp(p+8, "WAVE", 4)) {
if (!memcmp(p, "RIFF", 4) &&
!memcmp(p + 8, "WAVE", 4)) {
if (fread(p, 1, 8, f[i]) != 8)
return 1;
while (memcmp(p, "data", 4)) {
int s = p[4] | p[5]<<8 | p[6]<<16 | p[7]<<24;
int s = p[4] | p[5] << 8 | p[6] << 16 | p[7] << 24;
fseek(f[i], s, SEEK_CUR);
if (fread(p, 1, 8, f[i]) != 8)
return 1;
@@ -133,47 +136,47 @@ int main(int argc,char* argv[]){
}
}
fseek(f[shift<0], abs(shift), SEEK_CUR);
fseek(f[shift < 0], abs(shift), SEEK_CUR);
fseek(f[0],skip_bytes,SEEK_CUR);
fseek(f[1],skip_bytes,SEEK_CUR);
fseek(f[0], skip_bytes, SEEK_CUR);
fseek(f[1], skip_bytes, SEEK_CUR);
for(;;){
int s0= fread(buf[0], 1, SIZE, f[0]);
int s1= fread(buf[1], 1, SIZE, f[1]);
for (;;) {
int s0 = fread(buf[0], 1, SIZE, f[0]);
int s1 = fread(buf[1], 1, SIZE, f[1]);
for(j=0; j<FFMIN(s0,s1); j++){
int64_t a= buf[0][j];
int64_t b= buf[1][j];
for (j = 0; j < FFMIN(s0, s1); j++) {
int64_t a = buf[0][j];
int64_t b = buf[1][j];
int dist;
if(len==2){
a= (int16_t)(a | (buf[0][++j]<<8));
b= (int16_t)(b | (buf[1][ j]<<8));
if (len == 2) {
a = (int16_t)(a | (buf[0][++j] << 8));
b = (int16_t)(b | (buf[1][ j] << 8));
}
sse += (a-b) * (a-b);
dist = abs(a-b);
if (dist > maxdist) maxdist = dist;
sse += (a - b) * (a - b);
dist = abs(a - b);
if (dist > maxdist)
maxdist = dist;
}
size0 += s0;
size1 += s1;
if(s0+s1<=0)
if (s0 + s1 <= 0)
break;
}
i= FFMIN(size0,size1)/len;
if(!i) i=1;
dev= int_sqrt( ((sse/i)*F*F) + (((sse%i)*F*F) + i/2)/i );
if(sse)
psnr= ((2*log16(max<<16) + log16(i) - log16(sse))*284619LL*F + (1LL<<31)) / (1LL<<32);
i = FFMIN(size0, size1) / len;
if (!i)
i = 1;
dev = int_sqrt(((sse / i) * F * F) + (((sse % i) * F * F) + i / 2) / i);
if (sse)
psnr = ((2 * log16(max << 16) + log16(i) - log16(sse)) *
284619LL * F + (1LL << 31)) / (1LL << 32);
else
psnr= 1000*F-1; //floating point free infinity :)
psnr = 1000 * F - 1; // floating point free infinity :)
printf("stddev:%5d.%02d PSNR:%3d.%02d MAXDIFF:%5d bytes:%9d/%9d\n",
(int)(dev/F), (int)(dev%F),
(int)(psnr/F), (int)(psnr%F),
maxdist,
size0, size1);
(int)(dev / F), (int)(dev % F),
(int)(psnr / F), (int)(psnr % F),
maxdist, size0, size1);
return 0;
}