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LibVideo/VP9: Move the left non-zero tokens context to TileContext

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The array containing the vertical line of bools indicating whether non-
zero tokens were decoded in each sub-block is moved to TileContext, and
a span of the valid range for a block to read and write to is created
when we construct a BlockContext.
This commit is contained in:
Zaggy1024 2022-11-27 04:13:12 -06:00 • committed by Andreas Kling
parent 06082d310f
commit 4e7e9d8479
7 changed files with 96 additions and 43 deletions
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2
Userland/Libraries/LibVideo/VP9/TreeParser.h
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@ -87,7 +87,7 @@ public:
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_context_for_first_token(BlockContext const& block_context, Array<Vector<bool>, 3> const& above_non_zero_tokens, Array<Vector<bool>, 3> const& left_non_zero_tokens, TransformSize transform_size, u8 plane, u32 sub_block_column, u32 sub_block_row, bool is_inter, u8 band);
static TokensContext get_context_for_first_token(BlockContext const& block_context, Array<Vector<bool>, 3> const& above_non_zero_tokens, NonZeroTokensView left_non_zero_tokens, TransformSize transform_size, u8 plane, u32 sub_block_column, u32 sub_block_row, bool is_inter, u8 band);
static TokensContext get_context_for_other_tokens(Array<u8, 1024> token_cache, TransformSize transform_size, TransformSet transform_set, u8 plane, u16 token_position, bool is_inter, u8 band);
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);