av1_loopfilter.h
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_AV1_COMMON_AV1_LOOPFILTER_H_
#define AOM_AV1_COMMON_AV1_LOOPFILTER_H_
#include "config/aom_config.h"
#include "aom/internal/aom_codec_internal.h"
#include "aom_ports/mem.h"
#include "av1/common/blockd.h"
#include "av1/common/seg_common.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_LOOP_FILTER 63
#define MAX_SHARPNESS 7
#define SIMD_WIDTH 16
enum lf_path {
LF_PATH_420,
LF_PATH_444,
LF_PATH_SLOW,
};
enum { VERT_EDGE = 0, HORZ_EDGE = 1, NUM_EDGE_DIRS } UENUM1BYTE(EDGE_DIR);
typedef struct {
uint64_t bits[4];
} FilterMask;
struct loopfilter {
int filter_level[2];
int filter_level_u;
int filter_level_v;
int backup_filter_level[2];
int backup_filter_level_u;
int backup_filter_level_v;
int sharpness_level;
uint8_t mode_ref_delta_enabled;
uint8_t mode_ref_delta_update;
// 0 = Intra, Last, Last2+Last3,
// GF, BRF, ARF2, ARF
int8_t ref_deltas[REF_FRAMES];
// 0 = ZERO_MV, MV
int8_t mode_deltas[MAX_MODE_LF_DELTAS];
};
// Need to align this structure so when it is declared and
// passed it can be loaded into vector registers.
typedef struct {
DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, mblim[SIMD_WIDTH]);
DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, lim[SIMD_WIDTH]);
DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, hev_thr[SIMD_WIDTH]);
} loop_filter_thresh;
typedef struct {
loop_filter_thresh lfthr[MAX_LOOP_FILTER + 1];
uint8_t lvl[MAX_MB_PLANE][MAX_SEGMENTS][2][REF_FRAMES][MAX_MODE_LF_DELTAS];
} loop_filter_info_n;
typedef struct AV1_DEBLOCKING_PARAMETERS {
// length of the filter applied to the outer edge
uint8_t filter_length;
// deblocking limits
const loop_filter_thresh *lfthr;
} AV1_DEBLOCKING_PARAMETERS;
typedef struct LoopFilterWorkerData {
YV12_BUFFER_CONFIG *frame_buffer;
struct AV1Common *cm;
struct macroblockd_plane planes[MAX_MB_PLANE];
// TODO(Ranjit): When the filter functions are modified to use xd->lossless
// add lossless as a member here.
MACROBLOCKD *xd;
AV1_DEBLOCKING_PARAMETERS params_buf[MAX_MIB_SIZE];
TX_SIZE tx_buf[MAX_MIB_SIZE];
struct aom_internal_error_info error_info;
} LFWorkerData;
/* assorted loopfilter functions which get used elsewhere */
struct AV1Common;
struct macroblockd;
struct AV1LfSyncData;
void av1_loop_filter_init(struct AV1Common *cm);
void av1_loop_filter_frame_init(struct AV1Common *cm, int plane_start,
int plane_end);
void av1_filter_block_plane_vert(const struct AV1Common *const cm,
const MACROBLOCKD *const xd, const int plane,
const MACROBLOCKD_PLANE *const plane_ptr,
const uint32_t mi_row, const uint32_t mi_col);
void av1_filter_block_plane_horz(const struct AV1Common *const cm,
const MACROBLOCKD *const xd, const int plane,
const MACROBLOCKD_PLANE *const plane_ptr,
const uint32_t mi_row, const uint32_t mi_col);
void av1_filter_block_plane_vert_opt(
const struct AV1Common *const cm, const MACROBLOCKD *const xd,
const MACROBLOCKD_PLANE *const plane_ptr, const uint32_t mi_row,
const uint32_t mi_col, AV1_DEBLOCKING_PARAMETERS *params_buf,
TX_SIZE *tx_buf, int num_mis_in_lpf_unit_height_log2);
void av1_filter_block_plane_vert_opt_chroma(
const struct AV1Common *const cm, const MACROBLOCKD *const xd,
const MACROBLOCKD_PLANE *const plane_ptr, const uint32_t mi_row,
const uint32_t mi_col, AV1_DEBLOCKING_PARAMETERS *params_buf,
TX_SIZE *tx_buf, int plane, bool joint_filter_chroma,
int num_mis_in_lpf_unit_height_log2);
void av1_filter_block_plane_horz_opt(
const struct AV1Common *const cm, const MACROBLOCKD *const xd,
const MACROBLOCKD_PLANE *const plane_ptr, const uint32_t mi_row,
const uint32_t mi_col, AV1_DEBLOCKING_PARAMETERS *params_buf,
TX_SIZE *tx_buf, int num_mis_in_lpf_unit_height_log2);
void av1_filter_block_plane_horz_opt_chroma(
const struct AV1Common *const cm, const MACROBLOCKD *const xd,
const MACROBLOCKD_PLANE *const plane_ptr, const uint32_t mi_row,
const uint32_t mi_col, AV1_DEBLOCKING_PARAMETERS *params_buf,
TX_SIZE *tx_buf, int plane, bool joint_filter_chroma,
int num_mis_in_lpf_unit_height_log2);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_COMMON_AV1_LOOPFILTER_H_
AV1Common
Top level common structure used by both encoder and decoder.
Definition av1_common_int.h:766
macroblockd
Variables related to current coding block.
Definition blockd.h:570