-/* DCT test. (c) 2001 Fabrice Bellard.
- Started from sample code by Juan J. Sierralta P.
-*/
+/**
+ * @file dct-test.c
+ * DCT test. (c) 2001 Fabrice Bellard.
+ * Started from sample code by Juan J. Sierralta P.
+ */
+
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <unistd.h>
-#include <getopt.h>
#include "dsputil.h"
#include "i386/mmx.h"
#include "simple_idct.h"
+#include "faandct.h"
+
+#ifndef MAX
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#endif
/* reference fdct/idct */
extern void fdct(DCTELEM *block);
4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
};
-UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
+uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
-INT64 gettime(void)
+int64_t gettime(void)
{
struct timeval tv;
gettimeofday(&tv,NULL);
- return (INT64)tv.tv_sec * 1000000 + tv.tv_usec;
+ return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
}
#define NB_ITS 20000
{
int it, i, scale;
int err_inf, v;
- INT64 err2, ti, ti1, it1;
- INT64 sysErr[64], sysErrMax=0;
+ int64_t err2, ti, ti1, it1;
+ int64_t sysErr[64], sysErrMax=0;
int maxout=0;
- int max_sum=0;
int blockSumErrMax=0, blockSumErr;
srandom(0);
fdct_func == j_rev_dct || fdct_func == ff_mmxext_idct) {
for(i=0;i<64;i++)
block[idct_mmx_perm[i]] = block1[i];
- } else if(fdct_func == simple_idct_mmx ) {
+ } else if(fdct_func == ff_simple_idct_mmx ) {
for(i=0;i<64;i++)
block[idct_simple_mmx_perm[i]] = block1[i];
fdct_func(block);
emms(); /* for ff_mmx_idct */
- if (fdct_func == fdct_ifast) {
+ if (fdct_func == fdct_ifast
+#ifndef FAAN_POSTSCALE
+ || fdct_func == ff_faandct
+#endif
+ ) {
for(i=0; i<64; i++) {
scale = 8*(1 << (AANSCALE_BITS + 11)) / aanscales[i];
block[i] = (block[i] * scale /*+ (1<<(AANSCALE_BITS-1))*/) >> AANSCALE_BITS;
fdct_func == j_rev_dct || fdct_func == ff_mmxext_idct) {
for(i=0;i<64;i++)
block[idct_mmx_perm[i]] = block1[i];
- } else if(fdct_func == simple_idct_mmx ) {
+ } else if(fdct_func == ff_simple_idct_mmx ) {
for(i=0;i<64;i++)
block[idct_simple_mmx_perm[i]] = block1[i];
} else {
#endif
}
+static uint8_t img_dest[64] __attribute__ ((aligned (8)));
+static uint8_t img_dest1[64] __attribute__ ((aligned (8)));
+
+void idct248_ref(uint8_t *dest, int linesize, int16_t *block)
+{
+ static int init;
+ static double c8[8][8];
+ static double c4[4][4];
+ double block1[64], block2[64], block3[64];
+ double s, sum, v;
+ int i, j, k;
+
+ if (!init) {
+ init = 1;
+
+ for(i=0;i<8;i++) {
+ sum = 0;
+ for(j=0;j<8;j++) {
+ s = (i==0) ? sqrt(1.0/8.0) : sqrt(1.0/4.0);
+ c8[i][j] = s * cos(M_PI * i * (j + 0.5) / 8.0);
+ sum += c8[i][j] * c8[i][j];
+ }
+ }
+
+ for(i=0;i<4;i++) {
+ sum = 0;
+ for(j=0;j<4;j++) {
+ s = (i==0) ? sqrt(1.0/4.0) : sqrt(1.0/2.0);
+ c4[i][j] = s * cos(M_PI * i * (j + 0.5) / 4.0);
+ sum += c4[i][j] * c4[i][j];
+ }
+ }
+ }
+
+ /* butterfly */
+ s = 0.5 * sqrt(2.0);
+ for(i=0;i<4;i++) {
+ for(j=0;j<8;j++) {
+ block1[8*(2*i)+j] = (block[8*(2*i)+j] + block[8*(2*i+1)+j]) * s;
+ block1[8*(2*i+1)+j] = (block[8*(2*i)+j] - block[8*(2*i+1)+j]) * s;
+ }
+ }
+
+ /* idct8 on lines */
+ for(i=0;i<8;i++) {
+ for(j=0;j<8;j++) {
+ sum = 0;
+ for(k=0;k<8;k++)
+ sum += c8[k][j] * block1[8*i+k];
+ block2[8*i+j] = sum;
+ }
+ }
+
+ /* idct4 */
+ for(i=0;i<8;i++) {
+ for(j=0;j<4;j++) {
+ /* top */
+ sum = 0;
+ for(k=0;k<4;k++)
+ sum += c4[k][j] * block2[8*(2*k)+i];
+ block3[8*(2*j)+i] = sum;
+
+ /* bottom */
+ sum = 0;
+ for(k=0;k<4;k++)
+ sum += c4[k][j] * block2[8*(2*k+1)+i];
+ block3[8*(2*j+1)+i] = sum;
+ }
+ }
+
+ /* clamp and store the result */
+ for(i=0;i<8;i++) {
+ for(j=0;j<8;j++) {
+ v = block3[8*i+j];
+ if (v < 0)
+ v = 0;
+ else if (v > 255)
+ v = 255;
+ dest[i * linesize + j] = (int)rint(v);
+ }
+ }
+}
+
+void idct248_error(const char *name,
+ void (*idct248_put)(uint8_t *dest, int line_size, int16_t *block))
+{
+ int it, i, it1, ti, ti1, err_max, v;
+
+ srandom(0);
+
+ /* just one test to see if code is correct (precision is less
+ important here) */
+ err_max = 0;
+ for(it=0;it<NB_ITS;it++) {
+
+ /* XXX: use forward transform to generate values */
+ for(i=0;i<64;i++)
+ block1[i] = (random() % 256) - 128;
+ block1[0] += 1024;
+
+ for(i=0; i<64; i++)
+ block[i]= block1[i];
+ idct248_ref(img_dest1, 8, block);
+
+ for(i=0; i<64; i++)
+ block[i]= block1[i];
+ idct248_put(img_dest, 8, block);
+
+ for(i=0;i<64;i++) {
+ v = abs((int)img_dest[i] - (int)img_dest1[i]);
+ if (v == 255)
+ printf("%d %d\n", img_dest[i], img_dest1[i]);
+ if (v > err_max)
+ err_max = v;
+ }
+#if 0
+ printf("ref=\n");
+ for(i=0;i<8;i++) {
+ int j;
+ for(j=0;j<8;j++) {
+ printf(" %3d", img_dest1[i*8+j]);
+ }
+ printf("\n");
+ }
+
+ printf("out=\n");
+ for(i=0;i<8;i++) {
+ int j;
+ for(j=0;j<8;j++) {
+ printf(" %3d", img_dest[i*8+j]);
+ }
+ printf("\n");
+ }
+#endif
+ }
+ printf("%s %s: err_inf=%d\n",
+ 1 ? "IDCT248" : "DCT248",
+ name, err_max);
+
+ ti = gettime();
+ it1 = 0;
+ do {
+ for(it=0;it<NB_ITS_SPEED;it++) {
+ for(i=0; i<64; i++)
+ block[i]= block1[i];
+// memcpy(block, block1, sizeof(DCTELEM) * 64);
+// dont memcpy especially not fastmemcpy because it does movntq !!!
+ idct248_put(img_dest, 8, block);
+ }
+ it1 += NB_ITS_SPEED;
+ ti1 = gettime() - ti;
+ } while (ti1 < 1000000);
+ emms();
+
+ printf("%s %s: %0.1f kdct/s\n",
+ 1 ? "IDCT248" : "DCT248",
+ name, (double)it1 * 1000.0 / (double)ti1);
+}
+
void help(void)
{
printf("dct-test [-i] [<test-number>]\n"
"test-number 0 -> test with random matrixes\n"
" 1 -> test with random sparse matrixes\n"
" 2 -> do 3. test from mpeg4 std\n"
- "-i test IDCT implementations\n");
+ "-i test IDCT implementations\n"
+ "-4 test IDCT248 implementations\n");
exit(1);
}
int main(int argc, char **argv)
{
- int test_idct = 0;
+ int test_idct = 0, test_248_dct = 0;
int c,i;
int test=1;
}
for(;;) {
- c = getopt(argc, argv, "ih");
+ c = getopt(argc, argv, "ih4");
if (c == -1)
break;
switch(c) {
case 'i':
test_idct = 1;
break;
+ case '4':
+ test_248_dct = 1;
+ break;
default :
case 'h':
help();
printf("ffmpeg DCT/IDCT test\n");
- if (!test_idct) {
- dct_error("REF-DBL", 0, fdct, fdct, test); /* only to verify code ! */
- dct_error("IJG-AAN-INT", 0, fdct_ifast, fdct, test);
- dct_error("IJG-LLM-INT", 0, ff_jpeg_fdct_islow, fdct, test);
- dct_error("MMX", 0, ff_fdct_mmx, fdct, test);
+ if (test_248_dct) {
+ idct248_error("SIMPLE-C", simple_idct248_put);
} else {
- dct_error("REF-DBL", 1, idct, idct, test);
- dct_error("INT", 1, j_rev_dct, idct, test);
- dct_error("LIBMPEG2-MMX", 1, ff_mmx_idct, idct, test);
- dct_error("LIBMPEG2-MMXEXT", 1, ff_mmxext_idct, idct, test);
- dct_error("SIMPLE-C", 1, simple_idct, idct, test);
- dct_error("SIMPLE-MMX", 1, simple_idct_mmx, idct, test);
-// dct_error("ODIVX-C", 1, odivx_idct_c, idct);
-//printf(" test against odivx idct\n");
-// dct_error("REF", 1, idct, odivx_idct_c);
-// dct_error("INT", 1, j_rev_dct, odivx_idct_c);
-// dct_error("MMX", 1, ff_mmx_idct, odivx_idct_c);
-// dct_error("MMXEXT", 1, ff_mmxext_idct, odivx_idct_c);
-// dct_error("SIMPLE-C", 1, simple_idct, odivx_idct_c);
-// dct_error("SIMPLE-MMX", 1, simple_idct_mmx, odivx_idct_c);
-// dct_error("ODIVX-C", 1, odivx_idct_c, odivx_idct_c);
+ if (!test_idct) {
+ dct_error("REF-DBL", 0, fdct, fdct, test); /* only to verify code ! */
+ dct_error("IJG-AAN-INT", 0, fdct_ifast, fdct, test);
+ dct_error("IJG-LLM-INT", 0, ff_jpeg_fdct_islow, fdct, test);
+ dct_error("MMX", 0, ff_fdct_mmx, fdct, test);
+ dct_error("MMX2", 0, ff_fdct_mmx2, fdct, test);
+ dct_error("FAAN", 0, ff_faandct, fdct, test);
+ } else {
+ dct_error("REF-DBL", 1, idct, idct, test);
+ dct_error("INT", 1, j_rev_dct, idct, test);
+ dct_error("LIBMPEG2-MMX", 1, ff_mmx_idct, idct, test);
+ dct_error("LIBMPEG2-MMXEXT", 1, ff_mmxext_idct, idct, test);
+ dct_error("SIMPLE-C", 1, simple_idct, idct, test);
+ dct_error("SIMPLE-MMX", 1, ff_simple_idct_mmx, idct, test);
+ // dct_error("ODIVX-C", 1, odivx_idct_c, idct);
+ //printf(" test against odivx idct\n");
+ // dct_error("REF", 1, idct, odivx_idct_c);
+ // dct_error("INT", 1, j_rev_dct, odivx_idct_c);
+ // dct_error("MMX", 1, ff_mmx_idct, odivx_idct_c);
+ // dct_error("MMXEXT", 1, ff_mmxext_idct, odivx_idct_c);
+ // dct_error("SIMPLE-C", 1, simple_idct, odivx_idct_c);
+ // dct_error("SIMPLE-MMX", 1, ff_simple_idct_mmx, odivx_idct_c);
+ // dct_error("ODIVX-C", 1, odivx_idct_c, odivx_idct_c);
+ }
}
return 0;
}
projects / ffmpeg / blobdiff