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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90
Roy Tam
parent
eb8cd130a8
commit
edc8d83307
989 changed files with 470949 additions and 0 deletions
580
third_party/aom/av1/common/mvref_common.h
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580
third_party/aom/av1/common/mvref_common.h
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/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AV1_COMMON_MVREF_COMMON_H_
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#define AV1_COMMON_MVREF_COMMON_H_
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#include "av1/common/onyxc_int.h"
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#include "av1/common/blockd.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if CONFIG_REF_MV
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#define MVREF_NEIGHBOURS 9
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#else
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#define MVREF_NEIGHBOURS 8
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#endif
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typedef struct position {
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int row;
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int col;
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} POSITION;
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typedef enum {
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BOTH_ZERO = 0,
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ZERO_PLUS_PREDICTED = 1,
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BOTH_PREDICTED = 2,
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NEW_PLUS_NON_INTRA = 3,
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BOTH_NEW = 4,
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INTRA_PLUS_NON_INTRA = 5,
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BOTH_INTRA = 6,
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INVALID_CASE = 9
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} motion_vector_context;
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// This is used to figure out a context for the ref blocks. The code flattens
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// an array that would have 3 possible counts (0, 1 & 2) for 3 choices by
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// adding 9 for each intra block, 3 for each zero mv and 1 for each new
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// motion vector. This single number is then converted into a context
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// with a single lookup ( counter_to_context ).
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static const int mode_2_counter[MB_MODE_COUNT] = {
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9, // DC_PRED
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9, // V_PRED
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9, // H_PRED
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9, // D45_PRED
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9, // D135_PRED
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9, // D117_PRED
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9, // D153_PRED
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9, // D207_PRED
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9, // D63_PRED
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#if CONFIG_ALT_INTRA
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9, // SMOOTH_PRED
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#endif // CONFIG_ALT_INTRA
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9, // TM_PRED
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0, // NEARESTMV
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0, // NEARMV
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3, // ZEROMV
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1, // NEWMV
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#if CONFIG_EXT_INTER
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#if CONFIG_COMPOUND_SINGLEREF
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0, // SR_NEAREST_NEARMV
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1, // SR_NEAREST_NEWMV
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1, // SR_NEAR_NEWMV
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3, // SR_ZERO_NEWMV
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1, // SR_NEW_NEWMV
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#endif // CONFIG_COMPOUND_SINGLEREF
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0, // NEAREST_NEARESTMV
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0, // NEAREST_NEARMV
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0, // NEAR_NEARESTMV
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0, // NEAR_NEARMV
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1, // NEAREST_NEWMV
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1, // NEW_NEARESTMV
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1, // NEAR_NEWMV
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1, // NEW_NEARMV
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3, // ZERO_ZEROMV
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1, // NEW_NEWMV
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#endif // CONFIG_EXT_INTER
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};
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// There are 3^3 different combinations of 3 counts that can be either 0,1 or
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// 2. However the actual count can never be greater than 2 so the highest
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// counter we need is 18. 9 is an invalid counter that's never used.
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static const int counter_to_context[19] = {
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BOTH_PREDICTED, // 0
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NEW_PLUS_NON_INTRA, // 1
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BOTH_NEW, // 2
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ZERO_PLUS_PREDICTED, // 3
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NEW_PLUS_NON_INTRA, // 4
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INVALID_CASE, // 5
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BOTH_ZERO, // 6
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INVALID_CASE, // 7
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INVALID_CASE, // 8
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INTRA_PLUS_NON_INTRA, // 9
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INTRA_PLUS_NON_INTRA, // 10
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INVALID_CASE, // 11
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INTRA_PLUS_NON_INTRA, // 12
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INVALID_CASE, // 13
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INVALID_CASE, // 14
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INVALID_CASE, // 15
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INVALID_CASE, // 16
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INVALID_CASE, // 17
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BOTH_INTRA // 18
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};
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#if !CONFIG_REF_MV
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static const POSITION mv_ref_blocks[BLOCK_SIZES][MVREF_NEIGHBOURS] = {
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// 4X4
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, -1 },
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{ -2, 0 },
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{ 0, -2 },
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{ -2, -1 },
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{ -1, -2 },
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{ -2, -2 } },
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// 4X8
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, -1 },
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{ -2, 0 },
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{ 0, -2 },
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{ -2, -1 },
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{ -1, -2 },
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{ -2, -2 } },
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// 8X4
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, -1 },
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{ -2, 0 },
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{ 0, -2 },
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{ -2, -1 },
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{ -1, -2 },
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{ -2, -2 } },
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// 8X8
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, -1 },
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{ -2, 0 },
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{ 0, -2 },
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{ -2, -1 },
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{ -1, -2 },
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{ -2, -2 } },
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// 8X16
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{ { 0, -1 },
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{ -1, 0 },
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{ 1, -1 },
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{ -1, -1 },
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{ 0, -2 },
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{ -2, 0 },
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{ -2, -1 },
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{ -1, -2 } },
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// 16X8
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, 1 },
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{ -1, -1 },
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{ -2, 0 },
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{ 0, -2 },
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{ -1, -2 },
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{ -2, -1 } },
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// 16X16
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, 1 },
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{ 1, -1 },
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{ -1, -1 },
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{ -3, 0 },
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{ 0, -3 },
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{ -3, -3 } },
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// 16X32
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{ { 0, -1 },
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{ -1, 0 },
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{ 2, -1 },
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{ -1, -1 },
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{ -1, 1 },
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{ 0, -3 },
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{ -3, 0 },
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{ -3, -3 } },
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// 32X16
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, 2 },
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{ -1, -1 },
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{ 1, -1 },
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{ -3, 0 },
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{ 0, -3 },
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{ -3, -3 } },
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// 32X32
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{ { -1, 1 },
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{ 1, -1 },
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{ -1, 2 },
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{ 2, -1 },
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{ -1, -1 },
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{ -3, 0 },
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{ 0, -3 },
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{ -3, -3 } },
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// 32X64
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{ { 0, -1 },
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{ -1, 0 },
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{ 4, -1 },
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{ -1, 2 },
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{ -1, -1 },
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{ 0, -3 },
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{ -3, 0 },
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{ 2, -1 } },
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// 64X32
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{ { -1, 0 },
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{ 0, -1 },
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{ -1, 4 },
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{ 2, -1 },
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{ -1, -1 },
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{ -3, 0 },
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{ 0, -3 },
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{ -1, 2 } },
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// 64X64
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{ { -1, 3 },
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{ 3, -1 },
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{ -1, 4 },
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{ 4, -1 },
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{ -1, -1 },
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{ -1, 0 },
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{ 0, -1 },
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{ -1, 6 } },
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#if CONFIG_EXT_PARTITION
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// TODO(debargha/jingning) Making them twice the 32x64, .. ones above
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// 64x128
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{ { 0, -2 },
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{ -2, 0 },
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{ 8, -2 },
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{ -2, 4 },
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{ -2, -2 },
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{ 0, -6 },
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{ -6, 0 },
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{ 4, -2 } },
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// 128x64
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{ { -2, 0 },
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{ 0, -2 },
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{ -2, 8 },
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{ 4, -2 },
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{ -2, -2 },
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{ -6, 0 },
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{ 0, -6 },
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{ -2, 4 } },
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// 128x128
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{ { -2, 6 },
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{ 6, -2 },
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{ -2, 8 },
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{ 8, -2 },
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{ -2, -2 },
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{ -2, 0 },
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{ 0, -2 },
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{ -2, 12 } },
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#endif // CONFIG_EXT_PARTITION
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};
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#endif
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static const int idx_n_column_to_subblock[4][2] = {
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{ 1, 2 }, { 1, 3 }, { 3, 2 }, { 3, 3 }
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};
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// clamp_mv_ref
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#if CONFIG_EXT_PARTITION
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#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units
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#else
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#define MV_BORDER (8 << 3) // Allow 8 pels in 1/8th pel units
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#endif // CONFIG_EXT_PARTITION
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static INLINE void clamp_mv_ref(MV *mv, int bw, int bh, const MACROBLOCKD *xd) {
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clamp_mv(mv, xd->mb_to_left_edge - bw * 8 - MV_BORDER,
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xd->mb_to_right_edge + bw * 8 + MV_BORDER,
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xd->mb_to_top_edge - bh * 8 - MV_BORDER,
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xd->mb_to_bottom_edge + bh * 8 + MV_BORDER);
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}
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// This function returns either the appropriate sub block or block's mv
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// on whether the block_size < 8x8 and we have check_sub_blocks set.
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static INLINE int_mv get_sub_block_mv(const MODE_INFO *candidate, int which_mv,
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int search_col, int block_idx) {
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#if CONFIG_REF_MV
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(void)search_col;
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(void)block_idx;
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return candidate->mbmi.mv[which_mv];
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#else
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return block_idx >= 0 && candidate->mbmi.sb_type < BLOCK_8X8
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? candidate
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->bmi[idx_n_column_to_subblock[block_idx][search_col == 0]]
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.as_mv[which_mv]
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: candidate->mbmi.mv[which_mv];
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#endif
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}
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#if CONFIG_REF_MV
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static INLINE int_mv get_sub_block_pred_mv(const MODE_INFO *candidate,
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int which_mv, int search_col,
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int block_idx) {
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(void)search_col;
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(void)block_idx;
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return candidate->mbmi.mv[which_mv];
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}
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#endif
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// Performs mv sign inversion if indicated by the reference frame combination.
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static INLINE int_mv scale_mv(const MB_MODE_INFO *mbmi, int ref,
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const MV_REFERENCE_FRAME this_ref_frame,
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const int *ref_sign_bias) {
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int_mv mv = mbmi->mv[ref];
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if (ref_sign_bias[mbmi->ref_frame[ref]] != ref_sign_bias[this_ref_frame]) {
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mv.as_mv.row *= -1;
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mv.as_mv.col *= -1;
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}
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return mv;
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}
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#define CLIP_IN_ADD(mv, bw, bh, xd) clamp_mv_ref(mv, bw, bh, xd)
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// This macro is used to add a motion vector mv_ref list if it isn't
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// already in the list. If it's the second motion vector it will also
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// skip all additional processing and jump to done!
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#define ADD_MV_REF_LIST(mv, refmv_count, mv_ref_list, bw, bh, xd, Done) \
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do { \
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(mv_ref_list)[(refmv_count)] = (mv); \
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CLIP_IN_ADD(&(mv_ref_list)[(refmv_count)].as_mv, (bw), (bh), (xd)); \
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if (refmv_count && (mv_ref_list)[1].as_int != (mv_ref_list)[0].as_int) { \
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(refmv_count) = 2; \
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goto Done; \
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} \
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(refmv_count) = 1; \
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} while (0)
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// If either reference frame is different, not INTRA, and they
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// are different from each other scale and add the mv to our list.
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#define IF_DIFF_REF_FRAME_ADD_MV(mbmi, ref_frame, ref_sign_bias, refmv_count, \
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mv_ref_list, bw, bh, xd, Done) \
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do { \
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if (is_inter_block(mbmi)) { \
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if ((mbmi)->ref_frame[0] != ref_frame) \
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ADD_MV_REF_LIST(scale_mv((mbmi), 0, ref_frame, ref_sign_bias), \
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refmv_count, mv_ref_list, bw, bh, xd, Done); \
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if (has_second_ref(mbmi) && (mbmi)->ref_frame[1] != ref_frame) \
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ADD_MV_REF_LIST(scale_mv((mbmi), 1, ref_frame, ref_sign_bias), \
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refmv_count, mv_ref_list, bw, bh, xd, Done); \
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} \
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} while (0)
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// Checks that the given mi_row, mi_col and search point
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// are inside the borders of the tile.
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static INLINE int is_inside(const TileInfo *const tile, int mi_col, int mi_row,
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int mi_rows, const AV1_COMMON *cm,
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const POSITION *mi_pos) {
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#if CONFIG_DEPENDENT_HORZTILES
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const int dependent_horz_tile_flag = cm->dependent_horz_tiles;
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#else
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const int dependent_horz_tile_flag = 0;
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(void)cm;
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#endif
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#if CONFIG_TILE_GROUPS
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if (dependent_horz_tile_flag && !tile->tg_horz_boundary) {
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#else
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if (dependent_horz_tile_flag) {
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#endif
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return !(mi_row + mi_pos->row < 0 ||
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mi_col + mi_pos->col < tile->mi_col_start ||
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mi_row + mi_pos->row >= mi_rows ||
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mi_col + mi_pos->col >= tile->mi_col_end);
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} else {
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return !(mi_row + mi_pos->row < tile->mi_row_start ||
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mi_col + mi_pos->col < tile->mi_col_start ||
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mi_row + mi_pos->row >= tile->mi_row_end ||
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mi_col + mi_pos->col >= tile->mi_col_end);
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}
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}
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static INLINE void lower_mv_precision(MV *mv, int allow_hp) {
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if (!allow_hp) {
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if (mv->row & 1) mv->row += (mv->row > 0 ? -1 : 1);
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if (mv->col & 1) mv->col += (mv->col > 0 ? -1 : 1);
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}
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}
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#if CONFIG_REF_MV
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static INLINE uint8_t av1_get_pred_diff_ctx(const int_mv pred_mv,
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const int_mv this_mv) {
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if (abs(this_mv.as_mv.row - pred_mv.as_mv.row) <= 4 &&
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abs(this_mv.as_mv.col - pred_mv.as_mv.col) <= 4)
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return 2;
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else
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return 1;
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}
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static INLINE int av1_nmv_ctx(const uint8_t ref_mv_count,
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const CANDIDATE_MV *ref_mv_stack, int ref,
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int ref_mv_idx) {
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if (ref_mv_stack[ref_mv_idx].weight >= REF_CAT_LEVEL && ref_mv_count > 0)
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return ref_mv_stack[ref_mv_idx].pred_diff[ref];
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return 0;
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}
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static INLINE int8_t av1_ref_frame_type(const MV_REFERENCE_FRAME *const rf) {
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if (rf[1] > INTRA_FRAME) {
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return TOTAL_REFS_PER_FRAME + FWD_RF_OFFSET(rf[0]) +
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BWD_RF_OFFSET(rf[1]) * FWD_REFS;
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}
|
||||
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return rf[0];
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}
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// clang-format off
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static MV_REFERENCE_FRAME ref_frame_map[COMP_REFS][2] = {
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#if CONFIG_EXT_REFS
|
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{ LAST_FRAME, BWDREF_FRAME }, { LAST2_FRAME, BWDREF_FRAME },
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{ LAST3_FRAME, BWDREF_FRAME }, { GOLDEN_FRAME, BWDREF_FRAME },
|
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|
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{ LAST_FRAME, ALTREF_FRAME }, { LAST2_FRAME, ALTREF_FRAME },
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{ LAST3_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }
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#else
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{ LAST_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }
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#endif
|
||||
};
|
||||
// clang-format on
|
||||
|
||||
static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf,
|
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int8_t ref_frame_type) {
|
||||
if (ref_frame_type >= TOTAL_REFS_PER_FRAME) {
|
||||
rf[0] = ref_frame_map[ref_frame_type - TOTAL_REFS_PER_FRAME][0];
|
||||
rf[1] = ref_frame_map[ref_frame_type - TOTAL_REFS_PER_FRAME][1];
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||||
} else {
|
||||
rf[0] = ref_frame_type;
|
||||
rf[1] = NONE_FRAME;
|
||||
assert(ref_frame_type > INTRA_FRAME &&
|
||||
ref_frame_type < TOTAL_REFS_PER_FRAME);
|
||||
}
|
||||
}
|
||||
|
||||
static INLINE int16_t av1_mode_context_analyzer(
|
||||
const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf,
|
||||
BLOCK_SIZE bsize, int block) {
|
||||
int16_t mode_ctx = 0;
|
||||
int8_t ref_frame_type = av1_ref_frame_type(rf);
|
||||
|
||||
if (block >= 0) {
|
||||
mode_ctx = mode_context[rf[0]] & 0x00ff;
|
||||
#if !CONFIG_CB4X4
|
||||
if (block > 0 && bsize < BLOCK_8X8 && bsize > BLOCK_4X4)
|
||||
mode_ctx |= (1 << SKIP_NEARESTMV_SUB8X8_OFFSET);
|
||||
#else
|
||||
(void)block;
|
||||
(void)bsize;
|
||||
#endif
|
||||
|
||||
return mode_ctx;
|
||||
}
|
||||
|
||||
return mode_context[ref_frame_type];
|
||||
}
|
||||
|
||||
static INLINE uint8_t av1_drl_ctx(const CANDIDATE_MV *ref_mv_stack,
|
||||
int ref_idx) {
|
||||
if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL &&
|
||||
ref_mv_stack[ref_idx + 1].weight >= REF_CAT_LEVEL)
|
||||
return 0;
|
||||
|
||||
if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL &&
|
||||
ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL)
|
||||
return 2;
|
||||
|
||||
if (ref_mv_stack[ref_idx].weight < REF_CAT_LEVEL &&
|
||||
ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL)
|
||||
return 3;
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
typedef void (*find_mv_refs_sync)(void *const data, int mi_row);
|
||||
void av1_find_mv_refs(const AV1_COMMON *cm, const MACROBLOCKD *xd,
|
||||
MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
|
||||
#if CONFIG_REF_MV
|
||||
uint8_t *ref_mv_count, CANDIDATE_MV *ref_mv_stack,
|
||||
#if CONFIG_EXT_INTER
|
||||
int16_t *compound_mode_context,
|
||||
#endif // CONFIG_EXT_INTER
|
||||
#endif
|
||||
int_mv *mv_ref_list, int mi_row, int mi_col,
|
||||
find_mv_refs_sync sync, void *const data,
|
||||
int16_t *mode_context);
|
||||
|
||||
// check a list of motion vectors by sad score using a number rows of pixels
|
||||
// above and a number cols of pixels in the left to select the one with best
|
||||
// score to use as ref motion vector
|
||||
void av1_find_best_ref_mvs(int allow_hp, int_mv *mvlist, int_mv *nearest_mv,
|
||||
int_mv *near_mv);
|
||||
|
||||
void av1_append_sub8x8_mvs_for_idx(const AV1_COMMON *cm, MACROBLOCKD *xd,
|
||||
int block, int ref, int mi_row, int mi_col,
|
||||
#if CONFIG_REF_MV
|
||||
CANDIDATE_MV *ref_mv_stack,
|
||||
uint8_t *ref_mv_count,
|
||||
#endif
|
||||
#if CONFIG_EXT_INTER
|
||||
int_mv *mv_list,
|
||||
#endif // CONFIG_EXT_INTER
|
||||
int_mv *nearest_mv, int_mv *near_mv);
|
||||
|
||||
#if CONFIG_EXT_INTER
|
||||
// This function keeps a mode count for a given MB/SB
|
||||
void av1_update_mv_context(const AV1_COMMON *cm, const MACROBLOCKD *xd,
|
||||
MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
|
||||
int_mv *mv_ref_list, int block, int mi_row,
|
||||
int mi_col, int16_t *mode_context);
|
||||
#endif // CONFIG_EXT_INTER
|
||||
|
||||
#if CONFIG_WARPED_MOTION
|
||||
int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
|
||||
int *pts, int *pts_inref);
|
||||
#endif // CONFIG_WARPED_MOTION
|
||||
|
||||
#if CONFIG_INTRABC
|
||||
static INLINE void av1_find_ref_dv(int_mv *ref_dv, int mi_row, int mi_col) {
|
||||
// TODO(aconverse@google.com): Handle tiles and such
|
||||
(void)mi_col;
|
||||
if (mi_row < MAX_MIB_SIZE) {
|
||||
ref_dv->as_mv.row = 0;
|
||||
ref_dv->as_mv.col = -MI_SIZE * MAX_MIB_SIZE;
|
||||
} else {
|
||||
ref_dv->as_mv.row = -MI_SIZE * MAX_MIB_SIZE;
|
||||
ref_dv->as_mv.col = 0;
|
||||
}
|
||||
}
|
||||
|
||||
static INLINE int is_dv_valid(const MV dv, const TileInfo *const tile,
|
||||
int mi_row, int mi_col, BLOCK_SIZE bsize) {
|
||||
const int bw = block_size_wide[bsize];
|
||||
const int bh = block_size_high[bsize];
|
||||
const int SCALE_PX_TO_MV = 8;
|
||||
// Disallow subpixel for now
|
||||
// SUBPEL_MASK is not the correct scale
|
||||
if ((dv.row & (SCALE_PX_TO_MV - 1) || dv.col & (SCALE_PX_TO_MV - 1)))
|
||||
return 0;
|
||||
// Is the source top-left inside the current tile?
|
||||
const int src_top_edge = mi_row * MI_SIZE * SCALE_PX_TO_MV + dv.row;
|
||||
const int tile_top_edge = tile->mi_row_start * MI_SIZE * SCALE_PX_TO_MV;
|
||||
if (src_top_edge < tile_top_edge) return 0;
|
||||
const int src_left_edge = mi_col * MI_SIZE * SCALE_PX_TO_MV + dv.col;
|
||||
const int tile_left_edge = tile->mi_col_start * MI_SIZE * SCALE_PX_TO_MV;
|
||||
if (src_left_edge < tile_left_edge) return 0;
|
||||
// Is the bottom right inside the current tile?
|
||||
const int src_bottom_edge = (mi_row * MI_SIZE + bh) * SCALE_PX_TO_MV + dv.row;
|
||||
const int tile_bottom_edge = tile->mi_row_end * MI_SIZE * SCALE_PX_TO_MV;
|
||||
if (src_bottom_edge > tile_bottom_edge) return 0;
|
||||
const int src_right_edge = (mi_col * MI_SIZE + bw) * SCALE_PX_TO_MV + dv.col;
|
||||
const int tile_right_edge = tile->mi_col_end * MI_SIZE * SCALE_PX_TO_MV;
|
||||
if (src_right_edge > tile_right_edge) return 0;
|
||||
// Is the bottom right within an already coded SB?
|
||||
const int active_sb_top_edge =
|
||||
(mi_row & ~MAX_MIB_MASK) * MI_SIZE * SCALE_PX_TO_MV;
|
||||
const int active_sb_bottom_edge =
|
||||
((mi_row & ~MAX_MIB_MASK) + MAX_MIB_SIZE) * MI_SIZE * SCALE_PX_TO_MV;
|
||||
const int active_sb_left_edge =
|
||||
(mi_col & ~MAX_MIB_MASK) * MI_SIZE * SCALE_PX_TO_MV;
|
||||
if (src_bottom_edge > active_sb_bottom_edge) return 0;
|
||||
if (src_bottom_edge > active_sb_top_edge &&
|
||||
src_right_edge > active_sb_left_edge)
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
#endif // CONFIG_INTRABC
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif
|
||||
|
||||
#endif // AV1_COMMON_MVREF_COMMON_H_
|
||||
Loading…
Add table
Add a link
Reference in a new issue