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-rw-r--r--gst-libs/gst/idct/ieeetest.c293
1 files changed, 160 insertions, 133 deletions
diff --git a/gst-libs/gst/idct/ieeetest.c b/gst-libs/gst/idct/ieeetest.c
index f5b270eb..d26181c1 100644
--- a/gst-libs/gst/idct/ieeetest.c
+++ b/gst-libs/gst/idct/ieeetest.c
@@ -27,9 +27,9 @@
void usage (char *msg);
long ieeerand (long L, long H);
-void dct_init(void);
-void ref_fdct(DCTELEM block[8][8]);
-void ref_idct(DCTELEM block[8][8]);
+void dct_init (void);
+void ref_fdct (DCTELEM block[8][8]);
+void ref_idct (DCTELEM block[8][8]);
/* error stat accumulators -- assume initialized to 0 */
@@ -38,47 +38,49 @@ long sumsqerrs[DCTSIZE2];
int maxerr[DCTSIZE2];
-char * meets (double val, double limit)
+char *
+meets (double val, double limit)
{
- return ((fabs(val) <= limit) ? "meets" : "FAILS");
+ return ((fabs (val) <= limit) ? "meets" : "FAILS");
}
int
-main(int argc, char **argv)
+main (int argc, char **argv)
{
long minpix, maxpix, sign;
long curiter, niters;
int i, j;
double max, total;
int method;
- DCTELEM block[DCTSIZE2]; /* random source data */
- DCTELEM refcoefs[DCTSIZE2]; /* coefs from reference FDCT */
- DCTELEM refout[DCTSIZE2]; /* output from reference IDCT */
- DCTELEM testout[DCTSIZE2]; /* output from test IDCT */
- GstIDCT *idct;
- guint64 tscstart, tscmin = ~0, tscmax = 0;
- guint64 tscstop;
+ DCTELEM block[DCTSIZE2]; /* random source data */
+ DCTELEM refcoefs[DCTSIZE2]; /* coefs from reference FDCT */
+ DCTELEM refout[DCTSIZE2]; /* output from reference IDCT */
+ DCTELEM testout[DCTSIZE2]; /* output from test IDCT */
+ GstIDCT *idct;
+ guint64 tscstart, tscmin = ~0, tscmax = 0;
+ guint64 tscstop;
/* Argument parsing --- not very bulletproof at all */
- if (argc != 6) usage(NULL);
+ if (argc != 6)
+ usage (NULL);
- method = atoi(argv[1]);
- minpix = atoi(argv[2]);
- maxpix = atoi(argv[3]);
- sign = atoi(argv[4]);
- niters = atol(argv[5]);
+ method = atoi (argv[1]);
+ minpix = atoi (argv[2]);
+ maxpix = atoi (argv[3]);
+ sign = atoi (argv[4]);
+ niters = atol (argv[5]);
- gst_library_load("gstidct");
+ gst_library_load ("gstidct");
- idct = gst_idct_new(method);
+ idct = gst_idct_new (method);
if (idct == 0) {
- printf("method not available\n\n\n");
+ printf ("method not available\n\n\n");
return 0;
}
- dct_init();
+ dct_init ();
/* Loop once per generated random-data block */
@@ -86,164 +88,186 @@ main(int argc, char **argv)
/* generate a pseudo-random block of data */
for (i = 0; i < DCTSIZE2; i++)
- block[i] = (DCTELEM) (ieeerand(-minpix,maxpix) * sign);
+ block[i] = (DCTELEM) (ieeerand (-minpix, maxpix) * sign);
/* perform reference FDCT */
- memcpy(refcoefs, block, sizeof(DCTELEM)*DCTSIZE2);
- ref_fdct((DCTELEM **) &refcoefs);
+ memcpy (refcoefs, block, sizeof (DCTELEM) * DCTSIZE2);
+ ref_fdct ((DCTELEM **) & refcoefs);
/* clip */
for (i = 0; i < DCTSIZE2; i++) {
- if (refcoefs[i] < -2048) refcoefs[i] = -2048;
- else if (refcoefs[i] > 2047) refcoefs[i] = 2047;
+ if (refcoefs[i] < -2048)
+ refcoefs[i] = -2048;
+ else if (refcoefs[i] > 2047)
+ refcoefs[i] = 2047;
}
/* perform reference IDCT */
- memcpy(refout, refcoefs, sizeof(DCTELEM)*DCTSIZE2);
- ref_idct(refout);
+ memcpy (refout, refcoefs, sizeof (DCTELEM) * DCTSIZE2);
+ ref_idct (refout);
/* clip */
for (i = 0; i < DCTSIZE2; i++) {
- if (refout[i] < -256) refout[i] = -256;
- else if (refout[i] > 255) refout[i] = 255;
+ if (refout[i] < -256)
+ refout[i] = -256;
+ else if (refout[i] > 255)
+ refout[i] = 255;
}
/* perform test IDCT */
- if (GST_IDCT_TRANSPOSE(idct)) {
+ if (GST_IDCT_TRANSPOSE (idct)) {
for (j = 0; j < DCTSIZE; j++) {
- for (i = 0; i < DCTSIZE; i++) {
- testout[i*DCTSIZE+j] = refcoefs[j*DCTSIZE+i];
- }
- }
- }
- else {
- memcpy(testout, refcoefs, sizeof(DCTELEM)*DCTSIZE2);
- }
-
- gst_trace_read_tsc(&tscstart);
- gst_idct_convert(idct, testout);
- gst_trace_read_tsc(&tscstop);
- /*printf("time %llu, %llu %lld\n", tscstart, tscstop, tscstop-tscstart); */
- if (tscstop - tscstart < tscmin) tscmin = tscstop-tscstart;
- if (tscstop - tscstart > tscmax) tscmax = tscstop-tscstart;
+ for (i = 0; i < DCTSIZE; i++) {
+ testout[i * DCTSIZE + j] = refcoefs[j * DCTSIZE + i];
+ }
+ }
+ } else {
+ memcpy (testout, refcoefs, sizeof (DCTELEM) * DCTSIZE2);
+ }
+
+ gst_trace_read_tsc (&tscstart);
+ gst_idct_convert (idct, testout);
+ gst_trace_read_tsc (&tscstop);
+ /*printf("time %llu, %llu %lld\n", tscstart, tscstop, tscstop-tscstart); */
+ if (tscstop - tscstart < tscmin)
+ tscmin = tscstop - tscstart;
+ if (tscstop - tscstart > tscmax)
+ tscmax = tscstop - tscstart;
/* clip */
for (i = 0; i < DCTSIZE2; i++) {
- if (testout[i] < -256) testout[i] = -256;
- else if (testout[i] > 255) testout[i] = 255;
+ if (testout[i] < -256)
+ testout[i] = -256;
+ else if (testout[i] > 255)
+ testout[i] = 255;
}
/* accumulate error stats */
for (i = 0; i < DCTSIZE2; i++) {
register int err = testout[i] - refout[i];
+
sumerrs[i] += err;
sumsqerrs[i] += err * err;
- if (err < 0) err = -err;
- if (maxerr[i] < err) maxerr[i] = err;
+ if (err < 0)
+ err = -err;
+ if (maxerr[i] < err)
+ maxerr[i] = err;
}
if (curiter % 100 == 99) {
- fprintf(stderr, ".");
- fflush(stderr);
+ fprintf (stderr, ".");
+ fflush (stderr);
}
}
- fprintf(stderr, "\n");
+ fprintf (stderr, "\n");
/* print results */
- printf("IEEE test conditions: -L = %ld, +H = %ld, sign = %ld, #iters = %ld\n",
- minpix, maxpix, sign, niters);
+ printf
+ ("IEEE test conditions: -L = %ld, +H = %ld, sign = %ld, #iters = %ld\n",
+ minpix, maxpix, sign, niters);
- printf("Speed, min time %lld, max %lld\n", tscmin, tscmax);
+ printf ("Speed, min time %lld, max %lld\n", tscmin, tscmax);
- printf("Peak absolute values of errors:\n");
+ printf ("Peak absolute values of errors:\n");
for (i = 0, j = 0; i < DCTSIZE2; i++) {
- if (j < maxerr[i]) j = maxerr[i];
- printf("%4d", maxerr[i]);
- if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ if (j < maxerr[i])
+ j = maxerr[i];
+ printf ("%4d", maxerr[i]);
+ if ((i % DCTSIZE) == DCTSIZE - 1)
+ printf ("\n");
}
- printf("Worst peak error = %d (%s spec limit 1)\n\n", j,
- meets((double) j, 1.0));
+ printf ("Worst peak error = %d (%s spec limit 1)\n\n", j,
+ meets ((double) j, 1.0));
- printf("Mean square errors:\n");
+ printf ("Mean square errors:\n");
max = total = 0.0;
for (i = 0; i < DCTSIZE2; i++) {
- double err = (double) sumsqerrs[i] / ((double) niters);
+ double err = (double) sumsqerrs[i] / ((double) niters);
+
total += (double) sumsqerrs[i];
- if (max < err) max = err;
- printf(" %8.4f", err);
- if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ if (max < err)
+ max = err;
+ printf (" %8.4f", err);
+ if ((i % DCTSIZE) == DCTSIZE - 1)
+ printf ("\n");
}
- printf("Worst pmse = %.6f (%s spec limit 0.06)\n", max, meets(max, 0.06));
- total /= (double) (64*niters);
- printf("Overall mse = %.6f (%s spec limit 0.02)\n\n", total,
- meets(total, 0.02));
+ printf ("Worst pmse = %.6f (%s spec limit 0.06)\n", max, meets (max, 0.06));
+ total /= (double) (64 * niters);
+ printf ("Overall mse = %.6f (%s spec limit 0.02)\n\n", total,
+ meets (total, 0.02));
- printf("Mean errors:\n");
+ printf ("Mean errors:\n");
max = total = 0.0;
for (i = 0; i < DCTSIZE2; i++) {
- double err = (double) sumerrs[i] / ((double) niters);
+ double err = (double) sumerrs[i] / ((double) niters);
+
total += (double) sumerrs[i];
- printf(" %8.4f", err);
- if (err < 0.0) err = -err;
- if (max < err) max = err;
- if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ printf (" %8.4f", err);
+ if (err < 0.0)
+ err = -err;
+ if (max < err)
+ max = err;
+ if ((i % DCTSIZE) == DCTSIZE - 1)
+ printf ("\n");
}
- printf("Worst mean error = %.6f (%s spec limit 0.015)\n", max,
- meets(max, 0.015));
- total /= (double) (64*niters);
- printf("Overall mean error = %.6f (%s spec limit 0.0015)\n\n", total,
- meets(total, 0.0015));
+ printf ("Worst mean error = %.6f (%s spec limit 0.015)\n", max,
+ meets (max, 0.015));
+ total /= (double) (64 * niters);
+ printf ("Overall mean error = %.6f (%s spec limit 0.0015)\n\n", total,
+ meets (total, 0.0015));
/* test for 0 input giving 0 output */
- memset(testout, 0, sizeof(DCTELEM)*DCTSIZE2);
- gst_idct_convert(idct, testout);
- for (i = 0, j=0; i < DCTSIZE2; i++) {
+ memset (testout, 0, sizeof (DCTELEM) * DCTSIZE2);
+ gst_idct_convert (idct, testout);
+ for (i = 0, j = 0; i < DCTSIZE2; i++) {
if (testout[i]) {
- printf("Position %d of IDCT(0) = %d (FAILS)\n", i, testout[i]);
+ printf ("Position %d of IDCT(0) = %d (FAILS)\n", i, testout[i]);
j++;
}
}
- printf("%d elements of IDCT(0) were not zero\n\n\n", j);
+ printf ("%d elements of IDCT(0) were not zero\n\n\n", j);
- exit(0);
+ exit (0);
return 0;
}
-void usage (char *msg)
+void
+usage (char *msg)
{
if (msg != NULL)
- fprintf(stderr, "\nerror: %s\n", msg);
-
- fprintf(stderr, "\n");
- fprintf(stderr, "usage: ieeetest minpix maxpix sign niters\n");
- fprintf(stderr, "\n");
- fprintf(stderr, " test = 1 - 5\n");
- fprintf(stderr, " minpix = -L value per IEEE spec\n");
- fprintf(stderr, " maxpix = H value per IEEE spec\n");
- fprintf(stderr, " sign = +1 for normal, -1 to run negated test\n");
- fprintf(stderr, " niters = # iterations (10000 for full test)\n");
- fprintf(stderr, "\n");
-
- exit(1);
+ fprintf (stderr, "\nerror: %s\n", msg);
+
+ fprintf (stderr, "\n");
+ fprintf (stderr, "usage: ieeetest minpix maxpix sign niters\n");
+ fprintf (stderr, "\n");
+ fprintf (stderr, " test = 1 - 5\n");
+ fprintf (stderr, " minpix = -L value per IEEE spec\n");
+ fprintf (stderr, " maxpix = H value per IEEE spec\n");
+ fprintf (stderr, " sign = +1 for normal, -1 to run negated test\n");
+ fprintf (stderr, " niters = # iterations (10000 for full test)\n");
+ fprintf (stderr, "\n");
+
+ exit (1);
}
/* Pseudo-random generator specified by IEEE 1180 */
-long ieeerand (long L, long H)
+long
+ieeerand (long L, long H)
{
static long randx = 1;
static double z = (double) 0x7fffffff;
- long i,j;
+ long i, j;
double x;
randx = (randx * 1103515245) + 12345;
i = randx & 0x7ffffffe;
x = ((double) i) / z;
- x *= (L+H+1);
+ x *= (L + H + 1);
j = x;
- return j-L;
+ return j - L;
}
@@ -256,33 +280,35 @@ double coslu[8][8];
/* Routine to initialise the cosine lookup table */
-void dct_init(void)
+void
+dct_init (void)
{
- int a,b;
+ int a, b;
double tmp;
- for(a=0;a<8;a++)
- for(b=0;b<8;b++) {
- tmp = cos((double)((a+a+1)*b) * (3.14159265358979323846 / 16.0));
- if(b==0)
- tmp /= sqrt(2.0);
+ for (a = 0; a < 8; a++)
+ for (b = 0; b < 8; b++) {
+ tmp = cos ((double) ((a + a + 1) * b) * (3.14159265358979323846 / 16.0));
+ if (b == 0)
+ tmp /= sqrt (2.0);
coslu[a][b] = tmp * 0.5;
}
}
-void ref_fdct (DCTELEM block[8][8])
+void
+ref_fdct (DCTELEM block[8][8])
{
- int x,y,u,v;
+ int x, y, u, v;
double tmp, tmp2;
double res[8][8];
- for (v=0; v<8; v++) {
- for (u=0; u<8; u++) {
+ for (v = 0; v < 8; v++) {
+ for (u = 0; u < 8; u++) {
tmp = 0.0;
- for (y=0; y<8; y++) {
+ for (y = 0; y < 8; y++) {
tmp2 = 0.0;
- for (x=0; x<8; x++) {
+ for (x = 0; x < 8; x++) {
tmp2 += (double) block[y][x] * coslu[x][u];
}
tmp += coslu[y][v] * tmp2;
@@ -291,11 +317,11 @@ void ref_fdct (DCTELEM block[8][8])
}
}
- for (v=0; v<8; v++) {
- for (u=0; u<8; u++) {
+ for (v = 0; v < 8; v++) {
+ for (u = 0; u < 8; u++) {
tmp = res[v][u];
if (tmp < 0.0) {
- x = - ((int) (0.5 - tmp));
+ x = -((int) (0.5 - tmp));
} else {
x = (int) (tmp + 0.5);
}
@@ -305,18 +331,19 @@ void ref_fdct (DCTELEM block[8][8])
}
-void ref_idct (DCTELEM block[8][8])
+void
+ref_idct (DCTELEM block[8][8])
{
- int x,y,u,v;
+ int x, y, u, v;
double tmp, tmp2;
double res[8][8];
- for (y=0; y<8; y++) {
- for (x=0; x<8; x++) {
+ for (y = 0; y < 8; y++) {
+ for (x = 0; x < 8; x++) {
tmp = 0.0;
- for (v=0; v<8; v++) {
+ for (v = 0; v < 8; v++) {
tmp2 = 0.0;
- for (u=0; u<8; u++) {
+ for (u = 0; u < 8; u++) {
tmp2 += (double) block[v][u] * coslu[x][u];
}
tmp += coslu[y][v] * tmp2;
@@ -325,11 +352,11 @@ void ref_idct (DCTELEM block[8][8])
}
}
- for (v=0; v<8; v++) {
- for (u=0; u<8; u++) {
+ for (v = 0; v < 8; v++) {
+ for (u = 0; u < 8; u++) {
tmp = res[v][u];
if (tmp < 0.0) {
- x = - ((int) (0.5 - tmp));
+ x = -((int) (0.5 - tmp));
} else {
x = (int) (tmp + 0.5);
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-07 01:07:02 +0000