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LibVideo/VP9: Implement sections 6.1.2 and 8.4.1-8.4.4
These section implement the behavior to refresh the probability tables after parsing a frame.
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8 changed files with 188 additions and 9 deletions
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@ -20,6 +20,14 @@ public:
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void dump_frame_info();
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private:
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/* (8.4) Probability Adaptation Process */
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u8 merge_prob(u8 pre_prob, u8 count_0, u8 count_1, u8 count_sat, u8 max_update_factor);
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u8 merge_probs(int const* tree, int index, u8* probs, u8* counts, u8 count_sat, u8 max_update_factor);
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bool adapt_coef_probs();
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bool adapt_non_coef_probs();
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void adapt_probs(int const* tree, u8* probs, u8* counts);
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u8 adapt_prob(u8 prob, u8 counts[2]);
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/* (8.5) Prediction Processes */
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bool predict_intra(size_t plane, u32 x, u32 y, bool have_left, bool have_above, bool not_on_right, TXSize tx_size, u32 block_index);
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bool predict_inter(size_t plane, u32 x, u32 y, u32 w, u32 h, u32 block_index);
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