| /* |
| * (c) 2001 Fabrice Bellard |
| * 2007 Marc Hoffman <marc.hoffman@analog.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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. |
| * |
| * FFmpeg 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 FFmpeg; 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 <math.h> |
| |
| #include "libavutil/cpu.h" |
| #include "libavutil/common.h" |
| #include "libavutil/lfg.h" |
| |
| #include "simple_idct.h" |
| #include "aandcttab.h" |
| #include "faandct.h" |
| #include "faanidct.h" |
| #include "x86/idct_xvid.h" |
| #include "dctref.h" |
| |
| #undef printf |
| |
| void ff_mmx_idct(DCTELEM *data); |
| void ff_mmxext_idct(DCTELEM *data); |
| |
| 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, TRANSPOSE_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 } |
| }; |
| |
| #if HAVE_MMX |
| void ff_prores_idct_put_10_sse2(uint16_t *dst, int linesize, |
| DCTELEM *block, int16_t *qmat); |
| |
| static void ff_prores_idct_put_10_sse2_wrap(uint16_t *dst){ |
| int16_t qmat[64]; int i; |
| int16_t tmp[64]; |
| |
| for(i=0; i<64; i++){ |
| qmat[i]=4; |
| tmp[i]= dst[i]; |
| } |
| ff_prores_idct_put_10_sse2(dst, 16, tmp, qmat); |
| } |
| #endif |
| |
| 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 }, |
| #if ARCH_X86_64 |
| { "PR-SSE2", ff_prores_idct_put_10_sse2_wrap, TRANSPOSE_PERM, AV_CPU_FLAG_SSE2, 1 }, |
| #endif |
| #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 } |
| }; |
| |
| #define AANSCALE_BITS 12 |
| |
| static int64_t gettime(void) |
| { |
| struct timeval tv; |
| gettimeofday(&tv, NULL); |
| return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec; |
| } |
| |
| #define NB_ITS 20000 |
| #define NB_ITS_SPEED 50000 |
| |
| static short idct_mmx_perm[64]; |
| |
| 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); |
| } |
| } |
| |
| DECLARE_ALIGNED(16, static DCTELEM, block)[64]; |
| DECLARE_ALIGNED(8, static DCTELEM, block1)[64]; |
| |
| 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 vals) |
| { |
| 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) % (2*vals)) -vals; |
| 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++) { |
| int idx = av_lfg_get(prng) % 64; |
| block[idx] = av_lfg_get(prng) % (2*vals) -vals; |
| } |
| break; |
| case 2: |
| block[ 0] = av_lfg_get(prng) % (16*vals) - (8*vals); |
| 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 if (perm == TRANSPOSE_PERM) { |
| for (i = 0; i < 64; i++) |
| dst[(i>>3) | ((i<<3)&0x38)] = 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, const int bits) |
| { |
| void (*ref)(DCTELEM *block) = is_idct ? ff_ref_idct : ff_ref_fdct; |
| int it, i, scale; |
| int err_inf, v; |
| int64_t err2, ti, ti1, it1, err_sum = 0; |
| int64_t sysErr[64], sysErrMax = 0; |
| int maxout = 0; |
| int blockSumErrMax = 0, blockSumErr; |
| AVLFG prng; |
| const int vals=1<<bits; |
| double omse, ome; |
| int spec_err; |
| |
| av_lfg_init(&prng, 1); |
| |
| err_inf = 0; |
| err2 = 0; |
| for (i = 0; i < 64; i++) |
| sysErr[i] = 0; |
| for (it = 0; it < NB_ITS; it++) { |
| init_block(block1, test, is_idct, &prng, vals); |
| permute(block, block1, dct->format); |
| |
| dct->func(block); |
| mmx_emms(); |
| |
| 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; |
| } |
| } |
| |
| ref(block1); |
| |
| 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("\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: max_err=%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 */ |
| |
| init_block(block, test, is_idct, &prng, vals); |
| 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; |
| } |
| #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); |
| |
| if (!speed) |
| return; |
| |
| ti = gettime(); |
| it1 = 0; |
| do { |
| 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); |
| mmx_emms(); |
| |
| printf("%s %s: %0.1f kdct/s\n", 1 ? "IDCT248" : "DCT248", name, |
| (double) it1 * 1000.0 / (double) ti1); |
| } |
| |
| static void help(void) |
| { |
| printf("dct-test [-i] [<test-number>] [<bits>]\n" |
| "test-number 0 -> test with random matrixes\n" |
| " 1 -> test with random sparse matrixes\n" |
| " 2 -> do 3. test from mpeg4 std\n" |
| "bits Number of time domain bits to use, 8 is default\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, test_248_dct = 0; |
| int c, i; |
| int test = 1; |
| int speed = 0; |
| int err = 0; |
| int bits=8; |
| |
| cpu_flags = av_get_cpu_flags(); |
| |
| ff_ref_dct_init(); |
| idct_mmx_init(); |
| |
| for (;;) { |
| c = getopt(argc, argv, "ih4t"); |
| if (c == -1) |
| break; |
| switch (c) { |
| case 'i': |
| test_idct = 1; |
| break; |
| case '4': |
| test_248_dct = 1; |
| break; |
| case 't': |
| speed = 1; |
| break; |
| default: |
| case 'h': |
| help(); |
| return 0; |
| } |
| } |
| |
| if (optind < argc) |
| test = atoi(argv[optind]); |
| if(optind+1 < argc) bits= atoi(argv[optind+1]); |
| |
| printf("ffmpeg DCT/IDCT test\n"); |
| |
| if (test_248_dct) { |
| idct248_error("SIMPLE-C", ff_simple_idct248_put, speed); |
| } else { |
| 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, bits); |
| } |
| } |
| |
| return err; |
| } |
