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/*
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
#include <string.h>
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#include "libavcodec/me_cmp.h"
#include "checkasm.h"
static void fill_random(uint8_t *tab, int size)
{
int i;
for (i = 0; i < size; i++) {
tab[i] = rnd() % 256;
}
}
static void test_motion(const char *name, me_cmp_func test_func)
{
/* test configurarion */
#define ITERATIONS 16
#define WIDTH 64
#define HEIGHT 64
/* motion estimation can look up to 17 bytes ahead */
static const int look_ahead = 17;
int i, x, y, h, d1, d2;
uint8_t *ptr;
LOCAL_ALIGNED_16(uint8_t, img1, [WIDTH * HEIGHT]);
LOCAL_ALIGNED_16(uint8_t, img2, [WIDTH * HEIGHT]);
declare_func_emms(AV_CPU_FLAG_MMX, int, struct MpegEncContext *c,
uint8_t *blk1 /* align width (8 or 16) */,
uint8_t *blk2 /* align 1 */, ptrdiff_t stride,
int h);
if (test_func == NULL) {
return;
}
/* test correctness */
fill_random(img1, WIDTH * HEIGHT);
fill_random(img2, WIDTH * HEIGHT);
if (check_func(test_func, "%s", name)) {
for (i = 0; i < ITERATIONS; i++) {
x = rnd() % (WIDTH - look_ahead);
y = rnd() % (HEIGHT - look_ahead);
// Pick a random h between 4 and 16; pick an even value.
h = 4 + ((rnd() % (16 + 1 - 4)) & ~1);
ptr = img2 + y * WIDTH + x;
d2 = call_ref(NULL, img1, ptr, WIDTH, h);
d1 = call_new(NULL, img1, ptr, WIDTH, h);
if (d1 != d2) {
fail();
printf("func: %s, x=%d y=%d h=%d, error: asm=%d c=%d\n", name, x, y, h, d1, d2);
break;
}
}
// Test with a fixed offset, for benchmark stability
ptr = img2 + 3 * WIDTH + 3;
bench_new(NULL, img1, ptr, WIDTH, 8);
}
}
#define ME_CMP_1D_ARRAYS(XX) \
XX(sad) \
XX(sse) \
XX(hadamard8_diff) \
XX(vsad) \
XX(vsse) \
XX(nsse) \
XX(me_pre_cmp) \
XX(me_cmp) \
XX(me_sub_cmp) \
XX(mb_cmp) \
XX(ildct_cmp) \
XX(frame_skip_cmp) \
XX(median_sad)
// tests for functions not yet implemented
#if 0
XX(dct_sad) \
XX(quant_psnr) \
XX(bit) \
XX(rd) \
XX(w53) \
XX(w97) \
XX(dct_max) \
XX(dct264_sad) \
#endif
static void check_motion(void)
{
char buf[64];
/* Setup AVCodecContext in a way that does not pull in all of libavcodec */
AVCodecContext av_ctx = { .codec_id = AV_CODEC_ID_NONE, .flags = AV_CODEC_FLAG_BITEXACT };
MECmpContext me_ctx;
memset(&me_ctx, 0, sizeof(me_ctx));
ff_me_cmp_init(&me_ctx, &av_ctx);
for (int i = 0; i < FF_ARRAY_ELEMS(me_ctx.pix_abs); i++) {
for (int j = 0; j < FF_ARRAY_ELEMS(me_ctx.pix_abs[0]); j++) {
snprintf(buf, sizeof(buf), "pix_abs_%d_%d", i, j);
test_motion(buf, me_ctx.pix_abs[i][j]);
}
}
#define XX(me_cmp_array) \
for (int i = 0; i < FF_ARRAY_ELEMS(me_ctx.me_cmp_array); i++) { \
snprintf(buf, sizeof(buf), #me_cmp_array "_%d", i); \
test_motion(buf, me_ctx.me_cmp_array[i]); \
}
ME_CMP_1D_ARRAYS(XX)
#undef XX
}
void checkasm_check_motion(void)
{
check_motion();
report("motion");
}
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