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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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18
Userland/Libraries/LibVideo/VP9/Context.h
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@ -75,8 +75,8 @@ public:
}
u32 rows() const { return m_rows; }
u32 columns() const { return m_columns; }
u32 superblock_rows() const { return blocks_to_superblocks(rows() + 7u); }
u32 superblock_columns() const { return blocks_to_superblocks(columns() + 7u); }
u32 superblock_rows() const { return blocks_ceiled_to_superblocks(rows()); }
u32 superblock_columns() const { return blocks_ceiled_to_superblocks(columns()); }
Vector2D<FrameBlockContext> const& block_contexts() const { return m_block_contexts; }
@ -175,9 +175,11 @@ static NonZeroTokensView create_non_zero_tokens_view(NonZeroTokens& non_zero_tok
struct TileContext {
public:
static ErrorOr<TileContext> try_create(FrameContext& frame_context, u32 rows_start, u32 rows_end, u32 columns_start, u32 columns_end, NonZeroTokensView above_non_zero_tokens, SegmentationPredictionContextView above_segmentation_ids)
static ErrorOr<TileContext> try_create(FrameContext& frame_context, u32 rows_start, u32 rows_end, u32 columns_start, u32 columns_end, PartitionContextView above_partition_context, NonZeroTokensView above_non_zero_tokens, SegmentationPredictionContextView above_segmentation_ids)
{
auto context_view = frame_context.m_block_contexts.view(rows_start, columns_start, rows_end - rows_start, columns_end - columns_start);
auto width = columns_end - columns_start;
auto height = rows_end - rows_start;
auto context_view = frame_context.m_block_contexts.view(rows_start, columns_start, height, width);
return TileContext {
frame_context,
@ -186,10 +188,12 @@ public:
columns_start,
columns_end,
context_view,
above_partition_context,
above_non_zero_tokens,
above_segmentation_ids,
TRY(create_non_zero_tokens(blocks_to_sub_blocks(rows_end - rows_start), frame_context.color_config.subsampling_y)),
TRY(SegmentationPredictionContext::try_create(rows_end - rows_start)),
TRY(PartitionContext::try_create(superblocks_to_blocks(blocks_ceiled_to_superblocks(height)))),
TRY(create_non_zero_tokens(blocks_to_sub_blocks(height), frame_context.color_config.subsampling_y)),
TRY(SegmentationPredictionContext::try_create(height)),
};
}
@ -204,8 +208,10 @@ public:
u32 columns() const { return columns_end - columns_start; }
Vector2DView<FrameBlockContext> block_contexts_view;
PartitionContextView above_partition_context;
NonZeroTokensView above_non_zero_tokens;
SegmentationPredictionContextView above_segmentation_ids;
PartitionContext left_partition_context;
NonZeroTokens left_non_zero_tokens;
SegmentationPredictionContext left_segmentation_ids;
};