mirror of
https://github.com/fergalmoran/ladybird.git
synced 2026-01-01 22:29:13 +00:00
907816e629
With the addition of this struct, both the bool to determine if coefs should be parsed and the token parse itself can take specific parameters. This is the last step in parameterizing all the tree parsing, so the old functions in TreeParser are now unused. This patch is very satisfying :^) There's still more work to be done to clean up how the parameters are passed from Parser, but that's work for another day.
97 lines
6.9 KiB
C++
97 lines
6.9 KiB
C++
/*
|
|
* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
|
|
* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "BitStream.h"
|
|
#include "Context.h"
|
|
#include "Enums.h"
|
|
#include "ProbabilityTables.h"
|
|
#include "SyntaxElementCounter.h"
|
|
|
|
namespace Video::VP9 {
|
|
|
|
class Parser;
|
|
|
|
class TreeParser {
|
|
public:
|
|
// FIXME: Move or remove this class once it is unused in the header.
|
|
class TreeSelection {
|
|
public:
|
|
union TreeSelectionValue {
|
|
int const* m_tree;
|
|
int m_value;
|
|
};
|
|
|
|
constexpr TreeSelection(int const* values)
|
|
: m_is_single_value(false)
|
|
, m_value { .m_tree = values }
|
|
{
|
|
}
|
|
|
|
constexpr TreeSelection(int value)
|
|
: m_is_single_value(true)
|
|
, m_value { .m_value = value }
|
|
{
|
|
}
|
|
|
|
bool is_single_value() const { return m_is_single_value; }
|
|
int single_value() const { return m_value.m_value; }
|
|
int const* tree() const { return m_value.m_tree; }
|
|
|
|
private:
|
|
bool m_is_single_value;
|
|
TreeSelectionValue m_value;
|
|
};
|
|
|
|
static ErrorOr<Partition> parse_partition(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, bool has_rows, bool has_columns, BlockSubsize block_subsize, u8 num_8x8, Vector<u8> const& above_partition_context, Vector<u8> const& left_partition_context, u32 row, u32 column, bool frame_is_intra);
|
|
static ErrorOr<PredictionMode> parse_default_intra_mode(BitStream&, ProbabilityTables const&, BlockSubsize mi_size, Optional<Array<PredictionMode, 4> const&> above_context, Optional<Array<PredictionMode, 4> const&> left_context, PredictionMode block_sub_modes[4], u8 index_x, u8 index_y);
|
|
static ErrorOr<PredictionMode> parse_default_uv_mode(BitStream&, ProbabilityTables const&, PredictionMode y_mode);
|
|
static ErrorOr<PredictionMode> parse_intra_mode(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, BlockSubsize mi_size);
|
|
static ErrorOr<PredictionMode> parse_sub_intra_mode(BitStream&, ProbabilityTables const&, SyntaxElementCounter&);
|
|
static ErrorOr<PredictionMode> parse_uv_mode(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, PredictionMode y_mode);
|
|
static ErrorOr<u8> parse_segment_id(BitStream&, u8 const probabilities[7]);
|
|
static ErrorOr<bool> parse_segment_id_predicted(BitStream&, u8 const probabilities[3], u8 above_seg_pred_context, u8 left_seg_pred_context);
|
|
static ErrorOr<PredictionMode> parse_inter_mode(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 mode_context_for_ref_frame_0);
|
|
static ErrorOr<InterpolationFilter> parse_interpolation_filter(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, Optional<ReferenceFrameType> above_ref_frame, Optional<ReferenceFrameType> left_ref_frame, Optional<InterpolationFilter> above_interpolation_filter, Optional<InterpolationFilter> left_interpolation_filter);
|
|
static ErrorOr<bool> parse_skip(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, Optional<bool> const& above_skip, Optional<bool> const& left_skip);
|
|
static ErrorOr<TXSize> parse_tx_size(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, TXSize max_tx_size, Optional<bool> above_skip, Optional<bool> left_skip, Optional<TXSize> above_tx_size, Optional<TXSize> left_tx_size);
|
|
static ErrorOr<bool> parse_is_inter(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, Optional<bool> above_intra, Optional<bool> left_intra);
|
|
static ErrorOr<ReferenceMode> parse_comp_mode(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, ReferenceFrameType comp_fixed_ref, Optional<bool> above_single, Optional<bool> left_single, Optional<bool> above_intra, Optional<bool> left_intra, Optional<ReferenceFrameType> above_ref_frame_0, Optional<ReferenceFrameType> left_ref_frame_0);
|
|
static ErrorOr<bool> parse_comp_ref(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, ReferenceFrameType comp_fixed_ref, ReferenceFramePair comp_var_ref, Optional<bool> above_single, Optional<bool> left_single, Optional<bool> above_intra, Optional<bool> left_intra, Optional<ReferenceFrameType> above_ref_frame_0, Optional<ReferenceFrameType> left_ref_frame_0, Optional<ReferenceFrameType> above_ref_frame_biased, Optional<ReferenceFrameType> left_ref_frame_biased);
|
|
static ErrorOr<bool> parse_single_ref_part_1(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, Optional<bool> above_single, Optional<bool> left_single, Optional<bool> above_intra, Optional<bool> left_intra, Optional<ReferenceFramePair> above_ref_frame, Optional<ReferenceFramePair> left_ref_frame);
|
|
static ErrorOr<bool> parse_single_ref_part_2(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, Optional<bool> above_single, Optional<bool> left_single, Optional<bool> above_intra, Optional<bool> left_intra, Optional<ReferenceFramePair> above_ref_frame, Optional<ReferenceFramePair> left_ref_frame);
|
|
|
|
static ErrorOr<MvJoint> parse_motion_vector_joint(BitStream&, ProbabilityTables const&, SyntaxElementCounter&);
|
|
static ErrorOr<bool> parse_motion_vector_sign(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component);
|
|
static ErrorOr<MvClass> parse_motion_vector_class(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component);
|
|
static ErrorOr<bool> parse_motion_vector_class0_bit(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component);
|
|
static ErrorOr<u8> parse_motion_vector_class0_fr(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component, bool class_0_bit);
|
|
static ErrorOr<bool> parse_motion_vector_class0_hp(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component, bool use_hp);
|
|
static ErrorOr<bool> parse_motion_vector_bit(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component, u8 bit_index);
|
|
static ErrorOr<u8> parse_motion_vector_fr(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component);
|
|
static ErrorOr<bool> parse_motion_vector_hp(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, u8 component, bool use_hp);
|
|
|
|
static TokensContext get_tokens_context(bool subsampling_x, bool subsampling_y, u32 rows, u32 columns, Array<Vector<bool>, 3> const& above_nonzero_context, Array<Vector<bool>, 3> const& left_nonzero_context, u8 token_cache[1024], TXSize tx_size, u8 tx_type, u8 plane, u32 start_x, u32 start_y, u32 position, bool is_inter, u8 band, u32 c);
|
|
static ErrorOr<bool> parse_more_coefficients(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, TokensContext const& context);
|
|
static ErrorOr<Token> parse_token(BitStream&, ProbabilityTables const&, SyntaxElementCounter&, TokensContext const& context);
|
|
};
|
|
|
|
struct PartitionTreeContext {
|
|
bool has_rows;
|
|
bool has_columns;
|
|
BlockSubsize block_subsize;
|
|
u8 num_8x8;
|
|
Vector<u8> const& above_partition_context;
|
|
Vector<u8> const& left_partition_context;
|
|
u32 row;
|
|
u32 column;
|
|
bool frame_is_intra;
|
|
};
|
|
|
|
}
|