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LibVideo/VP9: Move partitioning contexts to TileContext

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Like the non-zero tokens and segmentation IDs, these can be moved into
the tile decoding loop for above context and allocated by TileContext
for left context.
This commit is contained in:
Zaggy1024 2022-11-28 06:25:18 -06:00 • committed by Andreas Kling
parent 720fc5a853
commit 71aac25635
7 changed files with 38 additions and 25 deletions
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6
Userland/Libraries/LibVideo/VP9/TreeParser.cpp
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@ -44,7 +44,7 @@ inline void increment_counter(u8& counter)
counter = min(static_cast<u32>(counter) + 1, 255);
}
ErrorOr<Partition> TreeParser::parse_partition(BitStream& bit_stream, ProbabilityTables const& probability_table, SyntaxElementCounter& counter, 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)
ErrorOr<Partition> TreeParser::parse_partition(BitStream& bit_stream, ProbabilityTables const& probability_table, SyntaxElementCounter& counter, bool has_rows, bool has_columns, BlockSubsize block_subsize, u8 num_8x8, PartitionContextView above_partition_context, PartitionContextView left_partition_context, u32 row, u32 column, bool frame_is_intra)
{
// Tree array
TreeParser::TreeSelection tree = { PartitionSplit };
@ -61,7 +61,11 @@ ErrorOr<Partition> TreeParser::parse_partition(BitStream& bit_stream, Probabilit
auto bsl = mi_width_log2_lookup[block_subsize];
auto block_offset = mi_width_log2_lookup[Block_64x64] - bsl;
for (auto i = 0; i < num_8x8; i++) {
if (column + i >= above_partition_context.size())
dbgln("column={}, i={}, size={}", column, i, above_partition_context.size());
above |= above_partition_context[column + i];
if (row + i >= left_partition_context.size())
dbgln("row={}, i={}, size={}", row, i, left_partition_context.size());
left |= left_partition_context[row + i];
}
above = (above & (1 << block_offset)) > 0;