-/* DCT test. (c) 2001 Fabrice Bellard.
- Started from sample code by Juan J. Sierralta P.
-*/
+/*
+ * (c) 2001 Fabrice Bellard
+ * 2007 Marc Hoffman <marc.hoffman@analog.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * 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 <math.h>
-#include "dsputil.h"
+#include "libavutil/cpu.h"
+#include "libavutil/common.h"
+#include "libavutil/lfg.h"
-#include "i386/mmx.h"
+#include "simple_idct.h"
+#include "aandcttab.h"
+#include "faandct.h"
+#include "faanidct.h"
+#include "x86/idct_xvid.h"
+#include "dctref.h"
-/* reference fdct/idct */
-extern void fdct(DCTELEM *block);
-extern void idct(DCTELEM *block);
-extern void init_fdct();
+#undef printf
-extern void j_rev_dct(DCTELEM *data);
-extern void ff_mmx_idct(DCTELEM *data);
-extern void ff_mmxext_idct(DCTELEM *data);
+void ff_mmx_idct(DCTELEM *data);
+void ff_mmxext_idct(DCTELEM *data);
-#define AANSCALE_BITS 12
-static const unsigned short aanscales[64] = {
- /* precomputed values scaled up by 14 bits */
- 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
- 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
- 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
- 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
- 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
- 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
- 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
- 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
+void odivx_idct_c(short *block);
+
+// BFIN
+void ff_bfin_idct(DCTELEM *block);
+void ff_bfin_fdct(DCTELEM *block);
+
+// ALTIVEC
+void fdct_altivec(DCTELEM *block);
+//void idct_altivec(DCTELEM *block);?? no routine
+
+// ARM
+void ff_j_rev_dct_arm(DCTELEM *data);
+void ff_simple_idct_arm(DCTELEM *data);
+void ff_simple_idct_armv5te(DCTELEM *data);
+void ff_simple_idct_armv6(DCTELEM *data);
+void ff_simple_idct_neon(DCTELEM *data);
+
+void ff_simple_idct_axp(DCTELEM *data);
+
+struct algo {
+ const char *name;
+ void (*func)(DCTELEM *block);
+ enum formattag { NO_PERM, MMX_PERM, MMX_SIMPLE_PERM, SCALE_PERM,
+ SSE2_PERM, PARTTRANS_PERM } format;
+ int mm_support;
+ int nonspec;
+};
+
+#ifndef FAAN_POSTSCALE
+#define FAAN_SCALE SCALE_PERM
+#else
+#define FAAN_SCALE NO_PERM
+#endif
+
+static int cpu_flags;
+
+static const struct algo fdct_tab[] = {
+ { "REF-DBL", ff_ref_fdct, NO_PERM },
+ { "FAAN", ff_faandct, FAAN_SCALE },
+ { "IJG-AAN-INT", fdct_ifast, SCALE_PERM },
+ { "IJG-LLM-INT", ff_jpeg_fdct_islow_8, NO_PERM },
+
+#if HAVE_MMX
+ { "MMX", ff_fdct_mmx, NO_PERM, AV_CPU_FLAG_MMX },
+ { "MMX2", ff_fdct_mmx2, NO_PERM, AV_CPU_FLAG_MMX2 },
+ { "SSE2", ff_fdct_sse2, NO_PERM, AV_CPU_FLAG_SSE2 },
+#endif
+
+#if HAVE_ALTIVEC
+ { "altivecfdct", fdct_altivec, NO_PERM, AV_CPU_FLAG_ALTIVEC },
+#endif
+
+#if ARCH_BFIN
+ { "BFINfdct", ff_bfin_fdct, NO_PERM },
+#endif
+
+ { 0 }
+};
+
+static const struct algo idct_tab[] = {
+ { "FAANI", ff_faanidct, NO_PERM },
+ { "REF-DBL", ff_ref_idct, NO_PERM },
+ { "INT", j_rev_dct, MMX_PERM },
+ { "SIMPLE-C", ff_simple_idct_8, NO_PERM },
+
+#if HAVE_MMX
+#if CONFIG_GPL
+ { "LIBMPEG2-MMX", ff_mmx_idct, MMX_PERM, AV_CPU_FLAG_MMX, 1 },
+ { "LIBMPEG2-MMX2", ff_mmxext_idct, MMX_PERM, AV_CPU_FLAG_MMX2, 1 },
+#endif
+ { "SIMPLE-MMX", ff_simple_idct_mmx, MMX_SIMPLE_PERM, AV_CPU_FLAG_MMX },
+ { "XVID-MMX", ff_idct_xvid_mmx, NO_PERM, AV_CPU_FLAG_MMX, 1 },
+ { "XVID-MMX2", ff_idct_xvid_mmx2, NO_PERM, AV_CPU_FLAG_MMX2, 1 },
+ { "XVID-SSE2", ff_idct_xvid_sse2, SSE2_PERM, AV_CPU_FLAG_SSE2, 1 },
+#endif
+
+#if ARCH_BFIN
+ { "BFINidct", ff_bfin_idct, NO_PERM },
+#endif
+
+#if ARCH_ARM
+ { "SIMPLE-ARM", ff_simple_idct_arm, NO_PERM },
+ { "INT-ARM", ff_j_rev_dct_arm, MMX_PERM },
+#endif
+#if HAVE_ARMV5TE
+ { "SIMPLE-ARMV5TE", ff_simple_idct_armv5te,NO_PERM },
+#endif
+#if HAVE_ARMV6
+ { "SIMPLE-ARMV6", ff_simple_idct_armv6, MMX_PERM },
+#endif
+#if HAVE_NEON
+ { "SIMPLE-NEON", ff_simple_idct_neon, PARTTRANS_PERM },
+#endif
+
+#if ARCH_ALPHA
+ { "SIMPLE-ALPHA", ff_simple_idct_axp, NO_PERM },
+#endif
+
+ { 0 }
};
-INT64 gettime(void)
+#define AANSCALE_BITS 12
+
+static int64_t gettime(void)
{
struct timeval tv;
- gettimeofday(&tv,NULL);
- return (INT64)tv.tv_sec * 1000000 + tv.tv_usec;
+ gettimeofday(&tv, NULL);
+ return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
}
#define NB_ITS 20000
static short idct_mmx_perm[64];
-void idct_mmx_init(void)
+static short idct_simple_mmx_perm[64] = {
+ 0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
+ 0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
+ 0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
+ 0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
+ 0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
+ 0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
+ 0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
+ 0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
+};
+
+static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
+
+static void idct_mmx_init(void)
{
int i;
/* the mmx/mmxext idct uses a reordered input, so we patch scan tables */
for (i = 0; i < 64; i++) {
- idct_mmx_perm[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
+ idct_mmx_perm[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
}
}
-static DCTELEM block[64] __attribute__ ((aligned (8)));
-static DCTELEM block1[64] __attribute__ ((aligned (8)));
+DECLARE_ALIGNED(16, static DCTELEM, block)[64];
+DECLARE_ALIGNED(8, static DCTELEM, block1)[64];
-void dct_error(const char *name, int is_idct,
- void (*fdct_func)(DCTELEM *block),
- void (*fdct_ref)(DCTELEM *block))
+static inline void mmx_emms(void)
{
+#if HAVE_MMX
+ if (cpu_flags & AV_CPU_FLAG_MMX)
+ __asm__ volatile ("emms\n\t");
+#endif
+}
+
+static void init_block(DCTELEM block[64], int test, int is_idct, AVLFG *prng)
+{
+ int i, j;
+
+ memset(block, 0, 64 * sizeof(*block));
+
+ switch (test) {
+ case 0:
+ for (i = 0; i < 64; i++)
+ block[i] = (av_lfg_get(prng) % 512) - 256;
+ if (is_idct) {
+ ff_ref_fdct(block);
+ for (i = 0; i < 64; i++)
+ block[i] >>= 3;
+ }
+ break;
+ case 1:
+ j = av_lfg_get(prng) % 10 + 1;
+ for (i = 0; i < j; i++)
+ block[av_lfg_get(prng) % 64] = av_lfg_get(prng) % 512 - 256;
+ break;
+ case 2:
+ block[ 0] = av_lfg_get(prng) % 4096 - 2048;
+ block[63] = (block[0] & 1) ^ 1;
+ break;
+ }
+}
+
+static void permute(DCTELEM dst[64], const DCTELEM src[64], int perm)
+{
+ int i;
+
+ if (perm == MMX_PERM) {
+ for (i = 0; i < 64; i++)
+ dst[idct_mmx_perm[i]] = src[i];
+ } else if (perm == MMX_SIMPLE_PERM) {
+ for (i = 0; i < 64; i++)
+ dst[idct_simple_mmx_perm[i]] = src[i];
+ } else if (perm == SSE2_PERM) {
+ for (i = 0; i < 64; i++)
+ dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
+ } else if (perm == PARTTRANS_PERM) {
+ for (i = 0; i < 64; i++)
+ dst[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = src[i];
+ } else {
+ for (i = 0; i < 64; i++)
+ dst[i] = src[i];
+ }
+}
+
+static int dct_error(const struct algo *dct, int test, int is_idct, int speed)
+{
+ void (*ref)(DCTELEM *block) = is_idct ? ff_ref_idct : ff_ref_fdct;
int it, i, scale;
int err_inf, v;
- INT64 err2, ti, ti1, it1;
+ int64_t err2, ti, ti1, it1, err_sum = 0;
+ int64_t sysErr[64], sysErrMax = 0;
+ int maxout = 0;
+ int blockSumErrMax = 0, blockSumErr;
+ AVLFG prng;
+ double omse, ome;
+ int spec_err;
- srandom(0);
+ av_lfg_init(&prng, 1);
err_inf = 0;
err2 = 0;
- for(it=0;it<NB_ITS;it++) {
- for(i=0;i<64;i++)
- block1[i] = random() % 256;
-
- /* for idct test, generate inverse idct data */
- if (is_idct)
- fdct(block1);
-
- if (fdct_func == ff_mmx_idct ||
- fdct_func == j_rev_dct) {
- for(i=0;i<64;i++)
- block[idct_mmx_perm[i]] = block1[i];
- } else {
- memcpy(block, block1, sizeof(DCTELEM) * 64);
- }
+ for (i = 0; i < 64; i++)
+ sysErr[i] = 0;
+ for (it = 0; it < NB_ITS; it++) {
+ init_block(block1, test, is_idct, &prng);
+ permute(block, block1, dct->format);
- fdct_func(block);
- emms(); /* for ff_mmx_idct */
+ dct->func(block);
+ mmx_emms();
- if (fdct_func == fdct_ifast) {
- for(i=0; i<64; i++) {
- scale = (1 << (AANSCALE_BITS + 11)) / aanscales[i];
+ if (dct->format == SCALE_PERM) {
+ for (i = 0; i < 64; i++) {
+ scale = 8 * (1 << (AANSCALE_BITS + 11)) / ff_aanscales[i];
block[i] = (block[i] * scale) >> AANSCALE_BITS;
}
}
- fdct_ref(block1);
+ ref(block1);
- for(i=0;i<64;i++) {
- v = abs(block[i] - block1[i]);
+ blockSumErr = 0;
+ for (i = 0; i < 64; i++) {
+ int err = block[i] - block1[i];
+ err_sum += err;
+ v = abs(err);
if (v > err_inf)
err_inf = v;
err2 += v * v;
+ sysErr[i] += block[i] - block1[i];
+ blockSumErr += v;
+ if (abs(block[i]) > maxout)
+ maxout = abs(block[i]);
}
+ if (blockSumErrMax < blockSumErr)
+ blockSumErrMax = blockSumErr;
+ }
+ for (i = 0; i < 64; i++)
+ sysErrMax = FFMAX(sysErrMax, FFABS(sysErr[i]));
+
+ for (i = 0; i < 64; i++) {
+ if (i % 8 == 0)
+ printf("\n");
+ printf("%7d ", (int) sysErr[i]);
}
- printf("%s %s: err_inf=%d err2=%0.2f\n",
- is_idct ? "IDCT" : "DCT",
- name, err_inf, (double)err2 / NB_ITS / 64.0);
+ printf("\n");
+
+ omse = (double) err2 / NB_ITS / 64;
+ ome = (double) err_sum / NB_ITS / 64;
+
+ spec_err = is_idct && (err_inf > 1 || omse > 0.02 || fabs(ome) > 0.0015);
+
+ printf("%s %s: ppe=%d omse=%0.8f ome=%0.8f syserr=%0.8f maxout=%d blockSumErr=%d\n",
+ is_idct ? "IDCT" : "DCT", dct->name, err_inf,
+ omse, ome, (double) sysErrMax / NB_ITS,
+ maxout, blockSumErrMax);
+
+ if (spec_err && !dct->nonspec)
+ return 1;
+
+ if (!speed)
+ return 0;
/* speed test */
- for(i=0;i<64;i++)
- block1[i] = 255 - 63 + i;
-
- /* for idct test, generate inverse idct data */
- if (is_idct)
- fdct(block1);
- if (fdct_func == ff_mmx_idct ||
- fdct_func == j_rev_dct) {
- for(i=0;i<64;i++)
- block[idct_mmx_perm[i]] = block1[i];
+ init_block(block, test, is_idct, &prng);
+ permute(block1, block, dct->format);
+
+ ti = gettime();
+ it1 = 0;
+ do {
+ for (it = 0; it < NB_ITS_SPEED; it++) {
+ memcpy(block, block1, sizeof(block));
+ dct->func(block);
+ }
+ it1 += NB_ITS_SPEED;
+ ti1 = gettime() - ti;
+ } while (ti1 < 1000000);
+ mmx_emms();
+
+ printf("%s %s: %0.1f kdct/s\n", is_idct ? "IDCT" : "DCT", dct->name,
+ (double) it1 * 1000.0 / (double) ti1);
+
+ return 0;
+}
+
+DECLARE_ALIGNED(8, static uint8_t, img_dest)[64];
+DECLARE_ALIGNED(8, static uint8_t, img_dest1)[64];
+
+static 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);
+ }
+ }
+}
+
+static void idct248_error(const char *name,
+ void (*idct248_put)(uint8_t *dest, int line_size,
+ int16_t *block),
+ int speed)
+{
+ int it, i, it1, ti, ti1, err_max, v;
+ AVLFG prng;
+
+ av_lfg_init(&prng, 1);
+
+ /* 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] = av_lfg_get(&prng) % 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;
+ }
+ }
+ printf("%s %s: err_inf=%d\n", 1 ? "IDCT248" : "DCT248", name, err_max);
+
+ if (!speed)
+ return;
+
ti = gettime();
it1 = 0;
do {
- for(it=0;it<NB_ITS_SPEED;it++) {
- memcpy(block, block1, sizeof(DCTELEM) * 64);
- fdct_func(block);
+ for (it = 0; it < NB_ITS_SPEED; it++) {
+ for (i = 0; i < 64; i++)
+ block[i] = block1[i];
+ idct248_put(img_dest, 8, block);
}
it1 += NB_ITS_SPEED;
ti1 = gettime() - ti;
} while (ti1 < 1000000);
- emms();
+ mmx_emms();
- printf("%s %s: %0.1f kdct/s\n",
- is_idct ? "IDCT" : "DCT",
- name, (double)it1 * 1000.0 / (double)ti1);
+ printf("%s %s: %0.1f kdct/s\n", 1 ? "IDCT248" : "DCT248", name,
+ (double) it1 * 1000.0 / (double) ti1);
}
-void help(void)
+static void help(void)
{
- printf("dct-test [-i]\n"
- "test DCT implementations\n");
- exit(1);
+ 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"
+ "-4 test IDCT248 implementations\n"
+ "-t speed test\n");
}
int main(int argc, char **argv)
{
- int test_idct = 0;
- int c;
+ int test_idct = 0, test_248_dct = 0;
+ int c, i;
+ int test = 1;
+ int speed = 0;
+ int err = 0;
- init_fdct();
+ cpu_flags = av_get_cpu_flags();
+
+ ff_ref_dct_init();
idct_mmx_init();
- for(;;) {
- c = getopt(argc, argv, "ih");
+ for (;;) {
+ c = getopt(argc, argv, "ih4t");
if (c == -1)
break;
- switch(c) {
+ switch (c) {
case 'i':
test_idct = 1;
break;
+ case '4':
+ test_248_dct = 1;
+ break;
+ case 't':
+ speed = 1;
+ break;
+ default:
case 'h':
help();
- break;
+ return 0;
}
}
-
- printf("ffmpeg DCT/IDCT test\n");
- if (!test_idct) {
- dct_error("REF", 0, fdct, fdct); /* only to verify code ! */
- dct_error("AAN", 0, fdct_ifast, fdct);
- dct_error("MMX", 0, fdct_mmx, fdct);
+ if (optind < argc)
+ test = atoi(argv[optind]);
+
+ printf("Libav DCT/IDCT test\n");
+
+ if (test_248_dct) {
+ idct248_error("SIMPLE-C", ff_simple_idct248_put, speed);
} else {
- dct_error("REF", 1, idct, idct);
- dct_error("INT", 1, j_rev_dct, idct);
- dct_error("MMX", 1, ff_mmx_idct, idct);
- // dct_error("MMX", 1, ff_mmxext_idct, idct);
+ const struct algo *algos = test_idct ? idct_tab : fdct_tab;
+ for (i = 0; algos[i].name; i++)
+ if (!(~cpu_flags & algos[i].mm_support)) {
+ err |= dct_error(&algos[i], test, test_idct, speed);
+ }
}
- return 0;
+
+ return err;
}
projects / ffmpeg / blobdiff