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LibVideo/VP9: Move segmentation id prediction context to TileContext

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These can also be stored in the same places as the non-zero tokens
contexts.
This commit is contained in:
Zaggy1024 2022-11-28 04:56:04 -06:00 • committed by Andreas Kling
parent 9df72080a1
commit 1fe22f2141
5 changed files with 31 additions and 19 deletions
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11
Userland/Libraries/LibVideo/VP9/Context.h
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@ -175,7 +175,7 @@ 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)
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)
{
auto context_view = frame_context.m_block_contexts.view(rows_start, columns_start, rows_end - rows_start, columns_end - columns_start);
@ -187,7 +187,9 @@ public:
columns_end,
context_view,
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)),
};
}
@ -203,7 +205,9 @@ public:
Vector2DView<FrameBlockContext> block_contexts_view;
NonZeroTokensView above_non_zero_tokens;
SegmentationPredictionContextView above_segmentation_ids;
NonZeroTokens left_non_zero_tokens;
SegmentationPredictionContext left_segmentation_ids;
};
struct BlockContext {
@ -215,6 +219,7 @@ struct BlockContext {
min<u32>(num_8x8_blocks_high_lookup[size], tile_context.frame_context.rows() - row),
min<u32>(num_8x8_blocks_wide_lookup[size], tile_context.frame_context.columns() - column));
auto size_in_blocks = block_size_to_blocks(size);
auto size_in_sub_blocks = block_size_to_sub_blocks(get_subsampled_block_size(size, false, false));
return BlockContext {
@ -225,7 +230,9 @@ struct BlockContext {
.size = size,
.contexts_view = contexts_view,
.above_non_zero_tokens = create_non_zero_tokens_view(tile_context.above_non_zero_tokens, blocks_to_sub_blocks(column - tile_context.columns_start), size_in_sub_blocks.width(), tile_context.frame_context.color_config.subsampling_x),
.above_segmentation_ids = safe_slice(tile_context.above_segmentation_ids, column - tile_context.columns_start, size_in_blocks.width()),
.left_non_zero_tokens = create_non_zero_tokens_view(tile_context.left_non_zero_tokens, blocks_to_sub_blocks(row - tile_context.rows_start), size_in_sub_blocks.height(), tile_context.frame_context.color_config.subsampling_y),
.left_segmentation_ids = safe_slice(tile_context.left_segmentation_ids.span(), row - tile_context.rows_start, size_in_blocks.height()),
};
}
@ -266,7 +273,9 @@ struct BlockContext {
Array<u8, 4> mode_context {};
NonZeroTokensView above_non_zero_tokens;
SegmentationPredictionContextView above_segmentation_ids;
NonZeroTokensView left_non_zero_tokens;
SegmentationPredictionContextView left_segmentation_ids;
};
struct BlockMotionVectorCandidateSet {