/* * 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 */ #include "libavutil/common.h" #include "libavutil/intreadwrite.h" #include "libavutil/mem_internal.h" #include "libavcodec/mathops.h" #include "libavcodec/mpegvideoencdsp.h" #include "checkasm.h" #define randomize_buffers(buf, size) \ do { \ for (int j = 0; j < size; j += 4) \ AV_WN32((char*)buf + j, rnd()); \ } while (0) #define randomize_buffer_clipped(buf, min, max) \ do { \ for (size_t j = 0; j < FF_ARRAY_ELEMS(buf); ++j) \ buf[j] = rnd() % (max - min + 1) + min; \ } while (0) static void check_denoise_dct(MpegvideoEncDSPContext *c) { declare_func(void, int16_t block[64], int dct_error_sum[64], const uint16_t dct_offset[64]); if (check_func(c->denoise_dct, "denoise_dct")) { DECLARE_ALIGNED(16, int16_t, block_ref)[64]; DECLARE_ALIGNED(16, int16_t, block_new)[64]; DECLARE_ALIGNED(16, int, dct_error_sum_ref)[64]; DECLARE_ALIGNED(16, int, dct_error_sum_new)[64]; DECLARE_ALIGNED(16, uint16_t, dct_offset)[64]; for (size_t i = 0; i < FF_ARRAY_ELEMS(block_ref); ++i) { unsigned random = rnd(); block_ref[i] = random & (1 << 16) ? random : 0; } randomize_buffers(dct_offset, sizeof(dct_offset)); randomize_buffer_clipped(dct_error_sum_ref, 0, (1 << 24) - 1); memcpy(block_new, block_ref, sizeof(block_new)); memcpy(dct_error_sum_new, dct_error_sum_ref, sizeof(dct_error_sum_ref)); call_ref(block_ref, dct_error_sum_ref, dct_offset); call_new(block_new, dct_error_sum_new, dct_offset); if (memcmp(block_ref, block_new, sizeof(block_ref)) || memcmp(dct_error_sum_new, dct_error_sum_ref, sizeof(dct_error_sum_new))) fail(); bench_new(block_new, dct_error_sum_new, dct_offset); } } static void check_add_8x8basis(MpegvideoEncDSPContext *c) { declare_func(void, int16_t rem[64], const int16_t basis[64], int scale); if (check_func(c->add_8x8basis, "add_8x8basis")) { // FIXME: What are the actual ranges for these values? int scale = sign_extend(rnd(), 12); DECLARE_ALIGNED(16, int16_t, rem1)[64]; DECLARE_ALIGNED(16, int16_t, rem2)[64]; DECLARE_ALIGNED(16, int16_t, basis)[64]; randomize_buffer_clipped(basis, -15760, 15760); randomize_buffers(rem1, sizeof(rem1)); memcpy(rem2, rem1, sizeof(rem2)); call_ref(rem1, basis, scale); call_new(rem2, basis, scale); if (memcmp(rem1, rem2, sizeof(rem1))) fail(); bench_new(rem1, basis, scale); } } static void check_pix_sum(MpegvideoEncDSPContext *c) { LOCAL_ALIGNED_16(uint8_t, src, [16 * 16]); declare_func(int, const uint8_t *pix, ptrdiff_t line_size); randomize_buffers(src, 16 * 16); for (int n = 0; n < 2; n++) { const char *negstride_str = n ? "_negstride" : ""; if (check_func(c->pix_sum, "pix_sum%s", negstride_str)) { int sum0, sum1; const uint8_t *pix = src + (n ? (15 * 16) : 0); ptrdiff_t line_size = 16 * (n ? -1 : 1); sum0 = call_ref(pix, line_size); sum1 = call_new(pix, line_size); if (sum0 != sum1) fail(); bench_new(pix, line_size); } } } static void check_pix_norm1(MpegvideoEncDSPContext *c) { LOCAL_ALIGNED_16(uint8_t, src, [16 * 16]); declare_func(int, const uint8_t *pix, ptrdiff_t line_size); randomize_buffers(src, 16 * 16); for (int n = 0; n < 2; n++) { const char *negstride_str = n ? "_negstride" : ""; if (check_func(c->pix_norm1, "pix_norm1%s", negstride_str)) { int sum0, sum1; const uint8_t *pix = src + (n ? (15 * 16) : 0); ptrdiff_t line_size = 16 * (n ? -1 : 1); sum0 = call_ref(pix, line_size); sum1 = call_new(pix, line_size); if (sum0 != sum1) fail(); bench_new(pix, line_size); } } } #define NUM_LINES 4 #define MAX_LINE_SIZE 1920 #define EDGE_WIDTH 16 #define LINESIZE (EDGE_WIDTH + MAX_LINE_SIZE + EDGE_WIDTH) #define BUFSIZE ((EDGE_WIDTH + NUM_LINES + EDGE_WIDTH) * LINESIZE) static void check_draw_edges(MpegvideoEncDSPContext *c) { static const int input_sizes[] = {8, 128, 1080, MAX_LINE_SIZE, -MAX_LINE_SIZE}; LOCAL_ALIGNED_16(uint8_t, buf0, [BUFSIZE]); LOCAL_ALIGNED_16(uint8_t, buf1, [BUFSIZE]); declare_func(void, uint8_t *buf, ptrdiff_t wrap, int width, int height, int w, int h, int sides); for (int isi = 0; isi < FF_ARRAY_ELEMS(input_sizes); isi++) { int input_size = input_sizes[isi]; int negstride = input_size < 0; const char *negstride_str = negstride ? "_negstride" : ""; int width = FFABS(input_size); ptrdiff_t linesize = EDGE_WIDTH + width + EDGE_WIDTH; /* calculate height based on specified width to use the entire buffer. */ int height = (BUFSIZE / linesize) - (2 * EDGE_WIDTH); uint8_t *dst0 = buf0 + EDGE_WIDTH * linesize + EDGE_WIDTH; uint8_t *dst1 = buf1 + EDGE_WIDTH * linesize + EDGE_WIDTH; if (negstride) { dst0 += (height - 1) * linesize; dst1 += (height - 1) * linesize; linesize *= -1; } for (int shift = 0; shift < 3; shift++) { int edge = EDGE_WIDTH >> shift; if (check_func(c->draw_edges, "draw_edges_%d_%d_%d%s", width, height, edge, negstride_str)) { randomize_buffers(buf0, BUFSIZE); memcpy(buf1, buf0, BUFSIZE); call_ref(dst0, linesize, width, height, edge, edge, EDGE_BOTTOM | EDGE_TOP); call_new(dst1, linesize, width, height, edge, edge, EDGE_BOTTOM | EDGE_TOP); if (memcmp(buf0, buf1, BUFSIZE)) fail(); bench_new(dst1, linesize, width, height, edge, edge, EDGE_BOTTOM | EDGE_TOP); } } } } #undef NUM_LINES #undef MAX_LINE_SIZE #undef EDGE_WIDTH #undef LINESIZE #undef BUFSIZE void checkasm_check_mpegvideoencdsp(void) { AVCodecContext avctx = { .bits_per_raw_sample = 8, }; MpegvideoEncDSPContext c = { 0 }; ff_mpegvideoencdsp_init(&c, &avctx); check_denoise_dct(&c); report("denoise_dct"); check_pix_sum(&c); report("pix_sum"); check_pix_norm1(&c); report("pix_norm1"); check_draw_edges(&c); report("draw_edges"); check_add_8x8basis(&c); report("add_8x8basis"); }