diff options
Diffstat (limited to 'third_party/aom/av1/common/cfl.h')
-rw-r--r-- | third_party/aom/av1/common/cfl.h | 75 |
1 files changed, 8 insertions, 67 deletions
diff --git a/third_party/aom/av1/common/cfl.h b/third_party/aom/av1/common/cfl.h index f2df4b22b..4ac0b401c 100644 --- a/third_party/aom/av1/common/cfl.h +++ b/third_party/aom/av1/common/cfl.h @@ -12,79 +12,20 @@ #ifndef AV1_COMMON_CFL_H_ #define AV1_COMMON_CFL_H_ -#include <assert.h> +#include "av1/common/blockd.h" -#include "av1/common/enums.h" - -// Forward declaration of AV1_COMMON, in order to avoid creating a cyclic -// dependency by importing av1/common/onyxc_int.h -typedef struct AV1Common AV1_COMMON; - -// Forward declaration of MACROBLOCK, in order to avoid creating a cyclic -// dependency by importing av1/common/blockd.h -typedef struct macroblockd MACROBLOCKD; - -typedef struct { - // Pixel buffer containing the luma pixels used as prediction for chroma - // TODO(ltrudeau) Convert to uint16 for HBD support - uint8_t y_pix[MAX_SB_SQUARE]; - - // Pixel buffer containing the downsampled luma pixels used as prediction for - // chroma - // TODO(ltrudeau) Convert to uint16 for HBD support - uint8_t y_down_pix[MAX_SB_SQUARE]; - - // Height and width of the luma prediction block currently in the pixel buffer - int y_height, y_width; - - // Height and width of the chroma prediction block currently associated with - // this context - int uv_height, uv_width; - - // Transform level averages of the luma reconstructed values over the entire - // prediction unit - // Fixed point y_averages is Q12.3: - // * Worst case division is 1/1024 - // * Max error will be 1/16th. - // Note: 3 is chosen so that y_averages fits in 15 bits when 12 bit input is - // used - int y_averages_q3[MAX_NUM_TXB]; - int y_averages_stride; - - int are_parameters_computed; - - // Chroma subsampling - int subsampling_x, subsampling_y; - - // Block level DC_PRED for each chromatic plane - int dc_pred[CFL_PRED_PLANES]; - - // The rate associated with each alpha codeword - int costs[CFL_ALPHABET_SIZE]; - - int mi_row, mi_col; -} CFL_CTX; - -static const int cfl_alpha_mags_q3[CFL_MAGS_SIZE] = { 0, 1, -1, 2, -2, 4, -4 }; - -static const int cfl_alpha_codes[CFL_ALPHABET_SIZE][CFL_PRED_PLANES] = { - // barrbrain's simple 1D quant ordered by subset 3 likelihood - { 0, 0 }, { 1, 1 }, { 3, 0 }, { 3, 3 }, { 1, 0 }, { 3, 1 }, - { 5, 5 }, { 0, 1 }, { 5, 3 }, { 5, 0 }, { 3, 5 }, { 1, 3 }, - { 0, 3 }, { 5, 1 }, { 1, 5 }, { 0, 5 } -}; - -static INLINE int get_scaled_luma_q0(int alpha_q3, int y_pix, int avg_q3) { - return (alpha_q3 * ((y_pix << 3) - avg_q3) + 32) >> 6; +static INLINE int get_scaled_luma_q0(int alpha_q3, int16_t pred_buf_q3) { + int scaled_luma_q6 = alpha_q3 * pred_buf_q3; + return ROUND_POWER_OF_TWO_SIGNED(scaled_luma_q6, 6); } -void cfl_init(CFL_CTX *cfl, AV1_COMMON *cm); - void cfl_predict_block(MACROBLOCKD *const xd, uint8_t *dst, int dst_stride, int row, int col, TX_SIZE tx_size, int plane); -void cfl_store(CFL_CTX *cfl, const uint8_t *input, int input_stride, int row, - int col, TX_SIZE tx_size, BLOCK_SIZE bsize); +void cfl_store_block(MACROBLOCKD *const xd, BLOCK_SIZE bsize, TX_SIZE tx_size); + +void cfl_store_tx(MACROBLOCKD *const xd, int row, int col, TX_SIZE tx_size, + BLOCK_SIZE bsize); void cfl_compute_parameters(MACROBLOCKD *const xd, TX_SIZE tx_size); |