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LibVideo/VP9: Finish implementing block decoding (6.4.4)

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Though technically block decoding calls into some other incomplete
methods, so it isn't functionally complete yet. However, we are
very close to being done with the 6.4.X sections :)
This commit is contained in:
FalseHonesty 2021-06-27 15:55:41 -04:00 • committed by Andreas Kling
parent 074fbd1b06
commit 27fdf8361c
4 changed files with 143 additions and 46 deletions
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22
Userland/Libraries/LibVideo/VP9/Parser.h
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@ -24,6 +24,7 @@ class Parser {
public:
explicit Parser(Decoder&);
~Parser();
bool parse_frame(ByteBuffer const&);
void dump_info();
@ -45,6 +46,8 @@ private:
/* Utilities */
void clear_context(Vector<u8>& context, size_t size);
void clear_context(Vector<Vector<u8>>& context, size_t outer_size, size_t inner_size);
void allocate_tile_data();
void cleanup_tile_allocations();
/* (6.1) Frame Syntax */
bool trailing_bits();
@ -208,30 +211,39 @@ private:
u8 m_uv_mode { 0 }; // FIXME: Is u8 the right size?
ReferenceFrame m_left_ref_frame[2];
ReferenceFrame m_above_ref_frame[2];
Vector<Vector<Vector<ReferenceFrame>>> m_ref_frames; // TODO: Can we make these fixed sized allocations?
bool m_left_intra { false };
bool m_above_intra { false };
bool m_left_single { false };
bool m_above_single { false };
Vector<Vector<u8>> m_prev_segment_ids;
InterpolationFilter m_interp_filter { EightTap };
InterMode m_mv[2];
InterMode m_near_mv[2];
InterMode m_nearest_mv[2];
Vector<Vector<Vector<IntraMode>>> m_sub_modes; // FIXME: Can we make these fixed sized allocations?
u32 m_ref_frame_width[NUM_REF_FRAMES];
u32 m_ref_frame_height[NUM_REF_FRAMES];
u32 m_eob_total { 0 };
u8 m_tx_type { 0 };
u8 m_token_cache[1024];
i32 m_tokens[1024];
bool m_use_hp { false };
TXMode m_tx_mode;
ReferenceMode m_reference_mode;
ReferenceFrame m_comp_fixed_ref;
ReferenceFrame m_comp_var_ref[2];
InterMode m_block_mvs[2][4];
u8* m_prev_segment_ids { nullptr };
u32 m_allocated_dimensions { 0 };
bool* m_skips { nullptr };
TXSize* m_tx_sizes { nullptr };
u32* m_mi_sizes { nullptr };
u8* m_y_modes { nullptr };
u8* m_segment_ids { nullptr };
ReferenceFrame* m_ref_frames { nullptr };
InterpolationFilter* m_interp_filters { nullptr };
InterMode* m_mvs { nullptr };
InterMode* m_sub_mvs { nullptr };
IntraMode* m_sub_modes { nullptr };
OwnPtr<BitStream> m_bit_stream;
OwnPtr<ProbabilityTables> m_probability_tables;