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LibVideo/VP9: Refactor how above & left contexts are stored & cleared

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These make more sense as Vectors, and it makes it much easier to manage
their sizing.
This commit is contained in:
FalseHonesty 2021-06-26 16:28:25 -04:00 • committed by Andreas Kling
parent 91572a49c4
commit cbff7c386a
2 changed files with 27 additions and 35 deletions
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17
Userland/Libraries/LibVideo/VP9/Decoder.h
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@ -21,7 +21,6 @@ class Decoder {
public:
Decoder();
~Decoder();
bool parse_frame(ByteBuffer const&);
void dump_info();
@ -40,6 +39,10 @@ private:
return StudioSwing;
}
/* 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);
/* (6.2) Uncompressed Header Syntax */
bool uncompressed_header();
bool frame_sync_code();
@ -158,12 +161,12 @@ private:
i8 m_loop_filter_ref_deltas[MAX_REF_FRAMES];
i8 m_loop_filter_mode_deltas[2];
u8** m_above_nonzero_context { nullptr };
u8** m_left_nonzero_context { nullptr };
u8* m_above_seg_pred_context { nullptr };
u8* m_left_seg_pred_context { nullptr };
u8* m_above_partition_context { nullptr };
u8* m_left_partition_context { nullptr };
Vector<Vector<u8>> m_above_nonzero_context;
Vector<Vector<u8>> m_left_nonzero_context;
Vector<u8> m_above_seg_pred_context;
Vector<u8> m_left_seg_pred_context;
Vector<u8> m_above_partition_context;
Vector<u8> m_left_partition_context;
u32 m_mi_row_start { 0 };
u32 m_mi_row_end { 0 };
u32 m_mi_col_start { 0 };