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- /*
- * Copyright (c) 2018 Yingming Fan <yingmingfan@gmail.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 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/intreadwrite.h"
- #include "libavutil/mem_internal.h"
- #include "libavcodec/hevcdsp.h"
- #include "checkasm.h"
- static const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff };
- static const uint32_t sao_size[5] = {8, 16, 32, 48, 64};
- #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
- #define PIXEL_STRIDE (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE) //same with sao_edge src_stride
- #define BUF_SIZE (PIXEL_STRIDE * (64+2) * 2) //+2 for top and bottom row, *2 for high bit depth
- #define OFFSET_THRESH (1 << (bit_depth - 5))
- #define OFFSET_LENGTH 5
- #define randomize_buffers(buf0, buf1, size) \
- do { \
- uint32_t mask = pixel_mask[(bit_depth - 8) >> 1]; \
- int k; \
- for (k = 0; k < size; k += 4) { \
- uint32_t r = rnd() & mask; \
- AV_WN32A(buf0 + k, r); \
- AV_WN32A(buf1 + k, r); \
- } \
- } while (0)
- #define randomize_buffers2(buf, size) \
- do { \
- uint32_t max_offset = OFFSET_THRESH; \
- int k; \
- if (bit_depth == 8) { \
- for (k = 0; k < size; k++) { \
- uint8_t r = rnd() % max_offset; \
- buf[k] = r; \
- } \
- } else { \
- for (k = 0; k < size; k++) { \
- uint16_t r = rnd() % max_offset; \
- buf[k] = r; \
- } \
- } \
- } while (0)
- static void check_sao_band(HEVCDSPContext *h, int bit_depth)
- {
- int i;
- LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, src0, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, src1, [BUF_SIZE]);
- int16_t offset_val[OFFSET_LENGTH];
- int left_class = rnd()%32;
- for (i = 0; i <= 4; i++) {
- int block_size = sao_size[i];
- int prev_size = i > 0 ? sao_size[i - 1] : 0;
- ptrdiff_t stride = PIXEL_STRIDE*SIZEOF_PIXEL;
- declare_func(void, uint8_t *dst, uint8_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride,
- int16_t *sao_offset_val, int sao_left_class, int width, int height);
- if (check_func(h->sao_band_filter[i], "hevc_sao_band_%d_%d", block_size, bit_depth)) {
- for (int w = prev_size + 4; w <= block_size; w += 4) {
- randomize_buffers(src0, src1, BUF_SIZE);
- randomize_buffers2(offset_val, OFFSET_LENGTH);
- memset(dst0, 0, BUF_SIZE);
- memset(dst1, 0, BUF_SIZE);
- call_ref(dst0, src0, stride, stride, offset_val, left_class, w, block_size);
- call_new(dst1, src1, stride, stride, offset_val, left_class, w, block_size);
- for (int j = 0; j < block_size; j++) {
- if (memcmp(dst0 + j*stride, dst1 + j*stride, w*SIZEOF_PIXEL))
- fail();
- }
- }
- bench_new(dst1, src1, stride, stride, offset_val, left_class, block_size, block_size);
- }
- }
- }
- static void check_sao_edge(HEVCDSPContext *h, int bit_depth)
- {
- int i;
- LOCAL_ALIGNED_32(uint8_t, dst0, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, dst1, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, src0, [BUF_SIZE]);
- LOCAL_ALIGNED_32(uint8_t, src1, [BUF_SIZE]);
- int16_t offset_val[OFFSET_LENGTH];
- int eo = rnd()%4;
- for (i = 0; i <= 4; i++) {
- int block_size = sao_size[i];
- int prev_size = i > 0 ? sao_size[i - 1] : 0;
- ptrdiff_t stride = PIXEL_STRIDE*SIZEOF_PIXEL;
- int offset = (AV_INPUT_BUFFER_PADDING_SIZE + PIXEL_STRIDE)*SIZEOF_PIXEL;
- declare_func(void, uint8_t *dst, uint8_t *src, ptrdiff_t stride_dst,
- int16_t *sao_offset_val, int eo, int width, int height);
- for (int w = prev_size + 4; w <= block_size; w += 4) {
- randomize_buffers(src0, src1, BUF_SIZE);
- randomize_buffers2(offset_val, OFFSET_LENGTH);
- memset(dst0, 0, BUF_SIZE);
- memset(dst1, 0, BUF_SIZE);
- if (check_func(h->sao_edge_filter[i], "hevc_sao_edge_%d_%d", block_size, bit_depth)) {
- call_ref(dst0, src0 + offset, stride, offset_val, eo, w, block_size);
- call_new(dst1, src1 + offset, stride, offset_val, eo, w, block_size);
- for (int j = 0; j < block_size; j++) {
- if (memcmp(dst0 + j*stride, dst1 + j*stride, w*SIZEOF_PIXEL))
- fail();
- }
- bench_new(dst1, src1 + offset, stride, offset_val, eo, block_size, block_size);
- }
- }
- }
- }
- void checkasm_check_hevc_sao(void)
- {
- int bit_depth;
- for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
- HEVCDSPContext h;
- ff_hevc_dsp_init(&h, bit_depth);
- check_sao_band(&h, bit_depth);
- }
- report("sao_band");
- for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
- HEVCDSPContext h;
- ff_hevc_dsp_init(&h, bit_depth);
- check_sao_edge(&h, bit_depth);
- }
- report("sao_edge");
- }
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