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LibVideo/VP9: Refactor how TreeParser accesses decoder data

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The TreeParser requires information about a lot of the decoder's
current state in order to parse syntax tree elements correctly, so
there has to be some communication between the Decoder and the
TreeParser. Previously, the Decoder would copy its state to the
TreeParser when it changed, however, this was a poor choice. Now,
the TreeParser simply has a reference to its owning Decoder, and
accesses its state directly.
This commit is contained in:
FalseHonesty 2021-01-31 00:42:36 -05:00 • committed by Andreas Kling
parent 375dbad144
commit 741677b992
4 changed files with 47 additions and 88 deletions
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9
Userland/Libraries/LibVideo/VP9/Decoder.h
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@ -17,6 +17,8 @@
namespace Video::VP9 {
class Decoder {
friend class TreeParser;
public:
Decoder();
~Decoder();
@ -158,6 +160,13 @@ private:
bool m_available_l { false };
int m_segment_id { 0 };
int m_skip { false };
u8 m_num_8x8 { 0 };
bool m_has_rows { false };
bool m_has_cols { false };
TXSize m_max_tx_size { TX_4x4 };
u8 m_block_subsize { 0 };
u32 m_row { 0 };
u32 m_col { 0 };
bool m_use_hp { false };