/* * Copyright (c) 2015 Henrik Gramner * * This file is part of Libav. * * Libav 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. * * 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 General Public License for more details. * * You should have received a copy of the GNU 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. */ #include <string.h> #include "checkasm.h" #include "libavcodec/avcodec.h" #include "libavcodec/h264pred.h" #include "libavutil/common.h" #include "libavutil/internal.h" #include "libavutil/intreadwrite.h" static const int codec_ids[4] = { AV_CODEC_ID_H264, AV_CODEC_ID_VP8, AV_CODEC_ID_RV40, AV_CODEC_ID_SVQ3 }; static const char * const pred4x4_modes[4][15] = { { /* H264 */ [VERT_PRED ] = "vertical", [HOR_PRED ] = "horizontal", [DC_PRED ] = "dc", [DIAG_DOWN_LEFT_PRED ] = "down_left", [DIAG_DOWN_RIGHT_PRED] = "down_right", [VERT_RIGHT_PRED ] = "vertical_right", [HOR_DOWN_PRED ] = "horizontal_right", [VERT_LEFT_PRED ] = "vertical_left", [HOR_UP_PRED ] = "horizontal_up", [LEFT_DC_PRED ] = "left_dc", [TOP_DC_PRED ] = "top_dc", [DC_128_PRED ] = "dc_128", }, { /* VP8 */ [VERT_PRED ] = "vertical_vp8", [HOR_PRED ] = "horizontal_vp8", [VERT_LEFT_PRED] = "vertical_left_vp8", [TM_VP8_PRED ] = "tm_vp8", [DC_127_PRED ] = "dc_127_vp8", [DC_129_PRED ] = "dc_129_vp8", }, { /* RV40 */ [DIAG_DOWN_LEFT_PRED ] = "down_left_rv40", [VERT_LEFT_PRED ] = "vertical_left_rv40", [HOR_UP_PRED ] = "horizontal_up_rv40", [DIAG_DOWN_LEFT_PRED_RV40_NODOWN] = "down_left_nodown_rv40", [HOR_UP_PRED_RV40_NODOWN ] = "horizontal_up_nodown_rv40", [VERT_LEFT_PRED_RV40_NODOWN ] = "vertical_left_nodown_rv40", }, { /* SVQ3 */ [DIAG_DOWN_LEFT_PRED] = "down_left_svq3", }, }; static const char * const pred8x8_modes[4][11] = { { /* H264 */ [DC_PRED8x8 ] = "dc", [HOR_PRED8x8 ] = "horizontal", [VERT_PRED8x8 ] = "vertical", [PLANE_PRED8x8 ] = "plane", [LEFT_DC_PRED8x8 ] = "left_dc", [TOP_DC_PRED8x8 ] = "top_dc", [DC_128_PRED8x8 ] = "dc_128", [ALZHEIMER_DC_L0T_PRED8x8] = "mad_cow_dc_l0t", [ALZHEIMER_DC_0LT_PRED8x8] = "mad_cow_dc_0lt", [ALZHEIMER_DC_L00_PRED8x8] = "mad_cow_dc_l00", [ALZHEIMER_DC_0L0_PRED8x8] = "mad_cow_dc_0l0", }, { /* VP8 */ [PLANE_PRED8x8 ] = "tm_vp8", [DC_127_PRED8x8] = "dc_127_vp8", [DC_129_PRED8x8] = "dc_129_vp8", }, { /* RV40 */ [DC_PRED8x8 ] = "dc_rv40", [LEFT_DC_PRED8x8] = "left_dc_rv40", [TOP_DC_PRED8x8 ] = "top_dc_rv40", }, /* nothing for SVQ3 */ }; static const char * const pred16x16_modes[4][9] = { { /* H264 */ [DC_PRED8x8 ] = "dc", [HOR_PRED8x8 ] = "horizontal", [VERT_PRED8x8 ] = "vertical", [PLANE_PRED8x8 ] = "plane", [LEFT_DC_PRED8x8] = "left_dc", [TOP_DC_PRED8x8 ] = "top_dc", [DC_128_PRED8x8 ] = "dc_128", }, { /* VP8 */ [PLANE_PRED8x8 ] = "tm_vp8", [DC_127_PRED8x8] = "dc_127_vp8", [DC_129_PRED8x8] = "dc_129_vp8", }, { /* RV40 */ [PLANE_PRED8x8] = "plane_rv40", }, { /* SVQ3 */ [PLANE_PRED8x8] = "plane_svq3", }, }; static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff }; #define SIZEOF_PIXEL ((bit_depth + 7) / 8) #define BUF_SIZE (3 * 16 * 17) #define check_pred_func(func, name, mode_name) \ (mode_name && ((codec_ids[codec] == AV_CODEC_ID_H264) ? \ check_func(func, "pred%s_%s_%d", name, mode_name, bit_depth) : \ check_func(func, "pred%s_%s", name, mode_name))) #define randomize_buffers() \ do { \ uint32_t mask = pixel_mask[bit_depth - 8]; \ int i; \ for (i = 0; i < BUF_SIZE; i += 4) { \ uint32_t r = rnd() & mask; \ AV_WN32A(buf0 + i, r); \ AV_WN32A(buf1 + i, r); \ } \ } while (0) #define src0 (buf0 + 4 * 16) /* Offset to allow room for top and left */ #define src1 (buf1 + 4 * 16) static void check_pred4x4(H264PredContext *h, uint8_t *buf0, uint8_t *buf1, int codec, int chroma_format, int bit_depth) { if (chroma_format == 1) { uint8_t *topright = buf0 + 2*16; int pred_mode; declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, const uint8_t *topright, ptrdiff_t stride); for (pred_mode = 0; pred_mode < 15; pred_mode++) { if (check_pred_func(h->pred4x4[pred_mode], "4x4", pred4x4_modes[codec][pred_mode])) { randomize_buffers(); call_ref(src0, topright, 12*SIZEOF_PIXEL); call_new(src1, topright, 12*SIZEOF_PIXEL); if (memcmp(buf0, buf1, BUF_SIZE)) fail(); bench_new(src1, topright, 12*SIZEOF_PIXEL); } } } } static void check_pred8x8(H264PredContext *h, uint8_t *buf0, uint8_t *buf1, int codec, int chroma_format, int bit_depth) { int pred_mode; declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, ptrdiff_t stride); for (pred_mode = 0; pred_mode < 11; pred_mode++) { if (check_pred_func(h->pred8x8[pred_mode], (chroma_format == 2) ? "8x16" : "8x8", pred8x8_modes[codec][pred_mode])) { randomize_buffers(); call_ref(src0, 24*SIZEOF_PIXEL); call_new(src1, 24*SIZEOF_PIXEL); if (memcmp(buf0, buf1, BUF_SIZE)) fail(); bench_new(src1, 24*SIZEOF_PIXEL); } } } static void check_pred16x16(H264PredContext *h, uint8_t *buf0, uint8_t *buf1, int codec, int chroma_format, int bit_depth) { if (chroma_format == 1) { int pred_mode; declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, ptrdiff_t stride); for (pred_mode = 0; pred_mode < 9; pred_mode++) { if (check_pred_func(h->pred16x16[pred_mode], "16x16", pred16x16_modes[codec][pred_mode])) { randomize_buffers(); call_ref(src0, 48); call_new(src1, 48); if (memcmp(buf0, buf1, BUF_SIZE)) fail(); bench_new(src1, 48); } } } } static void check_pred8x8l(H264PredContext *h, uint8_t *buf0, uint8_t *buf1, int codec, int chroma_format, int bit_depth) { if (chroma_format == 1 && codec_ids[codec] == AV_CODEC_ID_H264) { int pred_mode; declare_func_emms(AV_CPU_FLAG_MMXEXT, void, uint8_t *src, int topleft, int topright, ptrdiff_t stride); for (pred_mode = 0; pred_mode < 12; pred_mode++) { if (check_pred_func(h->pred8x8l[pred_mode], "8x8l", pred4x4_modes[codec][pred_mode])) { int neighbors; for (neighbors = 0; neighbors <= 0xc000; neighbors += 0x4000) { int has_topleft = neighbors & 0x8000; int has_topright = neighbors & 0x4000; if ((pred_mode == DIAG_DOWN_RIGHT_PRED || pred_mode == VERT_RIGHT_PRED) && !has_topleft) continue; /* Those aren't allowed according to the spec */ randomize_buffers(); call_ref(src0, has_topleft, has_topright, 24*SIZEOF_PIXEL); call_new(src1, has_topleft, has_topright, 24*SIZEOF_PIXEL); if (memcmp(buf0, buf1, BUF_SIZE)) fail(); bench_new(src1, has_topleft, has_topright, 24*SIZEOF_PIXEL); } } } } } /* TODO: Add tests for H.264 lossless H/V prediction */ void checkasm_check_h264pred(void) { static const struct { void (*func)(H264PredContext*, uint8_t*, uint8_t*, int, int, int); const char *name; } tests[] = { { check_pred4x4, "pred4x4" }, { check_pred8x8, "pred8x8" }, { check_pred16x16, "pred16x16" }, { check_pred8x8l, "pred8x8l" }, }; LOCAL_ALIGNED_16(uint8_t, buf0, [BUF_SIZE]); LOCAL_ALIGNED_16(uint8_t, buf1, [BUF_SIZE]); H264PredContext h; int test, codec, chroma_format, bit_depth; for (test = 0; test < FF_ARRAY_ELEMS(tests); test++) { for (codec = 0; codec < 4; codec++) { int codec_id = codec_ids[codec]; for (bit_depth = 8; bit_depth <= (codec_id == AV_CODEC_ID_H264 ? 10 : 8); bit_depth++) for (chroma_format = 1; chroma_format <= (codec_id == AV_CODEC_ID_H264 ? 2 : 1); chroma_format++) { ff_h264_pred_init(&h, codec_id, bit_depth, chroma_format); tests[test].func(&h, buf0, buf1, codec, chroma_format, bit_depth); } } report("%s", tests[test].name); } }