mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-06 14:54:30 +00:00
233 lines
8.1 KiB
C
233 lines
8.1 KiB
C
|
/*
|
||
|
* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
|
||
|
*
|
||
|
* Use of this source code is governed by a BSD-style license
|
||
|
* that can be found in the LICENSE file in the root of the source
|
||
|
* tree. An additional intellectual property rights grant can be found
|
||
|
* in the file PATENTS. All contributing project authors may
|
||
|
* be found in the AUTHORS file in the root of the source tree.
|
||
|
*/
|
||
|
#ifndef VP9_COMMON_VP9_MVREF_COMMON_H_
|
||
|
#define VP9_COMMON_VP9_MVREF_COMMON_H_
|
||
|
|
||
|
#include "vp9/common/vp9_onyxc_int.h"
|
||
|
#include "vp9/common/vp9_blockd.h"
|
||
|
|
||
|
#ifdef __cplusplus
|
||
|
extern "C" {
|
||
|
#endif
|
||
|
|
||
|
#define LEFT_TOP_MARGIN ((VP9_ENC_BORDER_IN_PIXELS - VP9_INTERP_EXTEND) << 3)
|
||
|
#define RIGHT_BOTTOM_MARGIN ((VP9_ENC_BORDER_IN_PIXELS -\
|
||
|
VP9_INTERP_EXTEND) << 3)
|
||
|
|
||
|
#define MVREF_NEIGHBOURS 8
|
||
|
|
||
|
typedef struct position {
|
||
|
int row;
|
||
|
int col;
|
||
|
} POSITION;
|
||
|
|
||
|
typedef enum {
|
||
|
BOTH_ZERO = 0,
|
||
|
ZERO_PLUS_PREDICTED = 1,
|
||
|
BOTH_PREDICTED = 2,
|
||
|
NEW_PLUS_NON_INTRA = 3,
|
||
|
BOTH_NEW = 4,
|
||
|
INTRA_PLUS_NON_INTRA = 5,
|
||
|
BOTH_INTRA = 6,
|
||
|
INVALID_CASE = 9
|
||
|
} motion_vector_context;
|
||
|
|
||
|
// This is used to figure out a context for the ref blocks. The code flattens
|
||
|
// an array that would have 3 possible counts (0, 1 & 2) for 3 choices by
|
||
|
// adding 9 for each intra block, 3 for each zero mv and 1 for each new
|
||
|
// motion vector. This single number is then converted into a context
|
||
|
// with a single lookup ( counter_to_context ).
|
||
|
static const int mode_2_counter[MB_MODE_COUNT] = {
|
||
|
9, // DC_PRED
|
||
|
9, // V_PRED
|
||
|
9, // H_PRED
|
||
|
9, // D45_PRED
|
||
|
9, // D135_PRED
|
||
|
9, // D117_PRED
|
||
|
9, // D153_PRED
|
||
|
9, // D207_PRED
|
||
|
9, // D63_PRED
|
||
|
9, // TM_PRED
|
||
|
0, // NEARESTMV
|
||
|
0, // NEARMV
|
||
|
3, // ZEROMV
|
||
|
1, // NEWMV
|
||
|
};
|
||
|
|
||
|
// There are 3^3 different combinations of 3 counts that can be either 0,1 or
|
||
|
// 2. However the actual count can never be greater than 2 so the highest
|
||
|
// counter we need is 18. 9 is an invalid counter that's never used.
|
||
|
static const int counter_to_context[19] = {
|
||
|
BOTH_PREDICTED, // 0
|
||
|
NEW_PLUS_NON_INTRA, // 1
|
||
|
BOTH_NEW, // 2
|
||
|
ZERO_PLUS_PREDICTED, // 3
|
||
|
NEW_PLUS_NON_INTRA, // 4
|
||
|
INVALID_CASE, // 5
|
||
|
BOTH_ZERO, // 6
|
||
|
INVALID_CASE, // 7
|
||
|
INVALID_CASE, // 8
|
||
|
INTRA_PLUS_NON_INTRA, // 9
|
||
|
INTRA_PLUS_NON_INTRA, // 10
|
||
|
INVALID_CASE, // 11
|
||
|
INTRA_PLUS_NON_INTRA, // 12
|
||
|
INVALID_CASE, // 13
|
||
|
INVALID_CASE, // 14
|
||
|
INVALID_CASE, // 15
|
||
|
INVALID_CASE, // 16
|
||
|
INVALID_CASE, // 17
|
||
|
BOTH_INTRA // 18
|
||
|
};
|
||
|
|
||
|
static const POSITION mv_ref_blocks[BLOCK_SIZES][MVREF_NEIGHBOURS] = {
|
||
|
// 4X4
|
||
|
{{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
|
||
|
// 4X8
|
||
|
{{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
|
||
|
// 8X4
|
||
|
{{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
|
||
|
// 8X8
|
||
|
{{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
|
||
|
// 8X16
|
||
|
{{0, -1}, {-1, 0}, {1, -1}, {-1, -1}, {0, -2}, {-2, 0}, {-2, -1}, {-1, -2}},
|
||
|
// 16X8
|
||
|
{{-1, 0}, {0, -1}, {-1, 1}, {-1, -1}, {-2, 0}, {0, -2}, {-1, -2}, {-2, -1}},
|
||
|
// 16X16
|
||
|
{{-1, 0}, {0, -1}, {-1, 1}, {1, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
|
||
|
// 16X32
|
||
|
{{0, -1}, {-1, 0}, {2, -1}, {-1, -1}, {-1, 1}, {0, -3}, {-3, 0}, {-3, -3}},
|
||
|
// 32X16
|
||
|
{{-1, 0}, {0, -1}, {-1, 2}, {-1, -1}, {1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
|
||
|
// 32X32
|
||
|
{{-1, 1}, {1, -1}, {-1, 2}, {2, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
|
||
|
// 32X64
|
||
|
{{0, -1}, {-1, 0}, {4, -1}, {-1, 2}, {-1, -1}, {0, -3}, {-3, 0}, {2, -1}},
|
||
|
// 64X32
|
||
|
{{-1, 0}, {0, -1}, {-1, 4}, {2, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-1, 2}},
|
||
|
// 64X64
|
||
|
{{-1, 3}, {3, -1}, {-1, 4}, {4, -1}, {-1, -1}, {-1, 0}, {0, -1}, {-1, 6}}
|
||
|
};
|
||
|
|
||
|
static const int idx_n_column_to_subblock[4][2] = {
|
||
|
{1, 2},
|
||
|
{1, 3},
|
||
|
{3, 2},
|
||
|
{3, 3}
|
||
|
};
|
||
|
|
||
|
// clamp_mv_ref
|
||
|
#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units
|
||
|
|
||
|
static INLINE void clamp_mv_ref(MV *mv, const MACROBLOCKD *xd) {
|
||
|
clamp_mv(mv, xd->mb_to_left_edge - MV_BORDER,
|
||
|
xd->mb_to_right_edge + MV_BORDER,
|
||
|
xd->mb_to_top_edge - MV_BORDER,
|
||
|
xd->mb_to_bottom_edge + MV_BORDER);
|
||
|
}
|
||
|
|
||
|
// This function returns either the appropriate sub block or block's mv
|
||
|
// on whether the block_size < 8x8 and we have check_sub_blocks set.
|
||
|
static INLINE int_mv get_sub_block_mv(const MODE_INFO *candidate, int which_mv,
|
||
|
int search_col, int block_idx) {
|
||
|
return block_idx >= 0 && candidate->mbmi.sb_type < BLOCK_8X8
|
||
|
? candidate->bmi[idx_n_column_to_subblock[block_idx][search_col == 0]]
|
||
|
.as_mv[which_mv]
|
||
|
: candidate->mbmi.mv[which_mv];
|
||
|
}
|
||
|
|
||
|
|
||
|
// Performs mv sign inversion if indicated by the reference frame combination.
|
||
|
static INLINE int_mv scale_mv(const MB_MODE_INFO *mbmi, int ref,
|
||
|
const MV_REFERENCE_FRAME this_ref_frame,
|
||
|
const int *ref_sign_bias) {
|
||
|
int_mv mv = mbmi->mv[ref];
|
||
|
if (ref_sign_bias[mbmi->ref_frame[ref]] != ref_sign_bias[this_ref_frame]) {
|
||
|
mv.as_mv.row *= -1;
|
||
|
mv.as_mv.col *= -1;
|
||
|
}
|
||
|
return mv;
|
||
|
}
|
||
|
|
||
|
// This macro is used to add a motion vector mv_ref list if it isn't
|
||
|
// already in the list. If it's the second motion vector it will also
|
||
|
// skip all additional processing and jump to done!
|
||
|
#define ADD_MV_REF_LIST(mv, refmv_count, mv_ref_list, Done) \
|
||
|
do { \
|
||
|
if (refmv_count) { \
|
||
|
if ((mv).as_int != (mv_ref_list)[0].as_int) { \
|
||
|
(mv_ref_list)[(refmv_count)] = (mv); \
|
||
|
goto Done; \
|
||
|
} \
|
||
|
} else { \
|
||
|
(mv_ref_list)[(refmv_count)++] = (mv); \
|
||
|
} \
|
||
|
} while (0)
|
||
|
|
||
|
// If either reference frame is different, not INTRA, and they
|
||
|
// are different from each other scale and add the mv to our list.
|
||
|
#define IF_DIFF_REF_FRAME_ADD_MV(mbmi, ref_frame, ref_sign_bias, refmv_count, \
|
||
|
mv_ref_list, Done) \
|
||
|
do { \
|
||
|
if (is_inter_block(mbmi)) { \
|
||
|
if ((mbmi)->ref_frame[0] != ref_frame) \
|
||
|
ADD_MV_REF_LIST(scale_mv((mbmi), 0, ref_frame, ref_sign_bias), \
|
||
|
refmv_count, mv_ref_list, Done); \
|
||
|
if (has_second_ref(mbmi) && \
|
||
|
(mbmi)->ref_frame[1] != ref_frame && \
|
||
|
(mbmi)->mv[1].as_int != (mbmi)->mv[0].as_int) \
|
||
|
ADD_MV_REF_LIST(scale_mv((mbmi), 1, ref_frame, ref_sign_bias), \
|
||
|
refmv_count, mv_ref_list, Done); \
|
||
|
} \
|
||
|
} while (0)
|
||
|
|
||
|
|
||
|
// Checks that the given mi_row, mi_col and search point
|
||
|
// are inside the borders of the tile.
|
||
|
static INLINE int is_inside(const TileInfo *const tile,
|
||
|
int mi_col, int mi_row, int mi_rows,
|
||
|
const POSITION *mi_pos) {
|
||
|
return !(mi_row + mi_pos->row < 0 ||
|
||
|
mi_col + mi_pos->col < tile->mi_col_start ||
|
||
|
mi_row + mi_pos->row >= mi_rows ||
|
||
|
mi_col + mi_pos->col >= tile->mi_col_end);
|
||
|
}
|
||
|
|
||
|
// TODO(jingning): this mv clamping function should be block size dependent.
|
||
|
static INLINE void clamp_mv2(MV *mv, const MACROBLOCKD *xd) {
|
||
|
clamp_mv(mv, xd->mb_to_left_edge - LEFT_TOP_MARGIN,
|
||
|
xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
|
||
|
xd->mb_to_top_edge - LEFT_TOP_MARGIN,
|
||
|
xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
|
||
|
}
|
||
|
|
||
|
typedef void (*find_mv_refs_sync)(void *const data, int mi_row);
|
||
|
void vp9_find_mv_refs(const VP9_COMMON *cm, const MACROBLOCKD *xd,
|
||
|
const TileInfo *const tile,
|
||
|
MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
|
||
|
int_mv *mv_ref_list, int mi_row, int mi_col,
|
||
|
find_mv_refs_sync sync, void *const data);
|
||
|
|
||
|
// check a list of motion vectors by sad score using a number rows of pixels
|
||
|
// above and a number cols of pixels in the left to select the one with best
|
||
|
// score to use as ref motion vector
|
||
|
void vp9_find_best_ref_mvs(MACROBLOCKD *xd, int allow_hp,
|
||
|
int_mv *mvlist, int_mv *nearest_mv, int_mv *near_mv);
|
||
|
|
||
|
void vp9_append_sub8x8_mvs_for_idx(VP9_COMMON *cm, MACROBLOCKD *xd,
|
||
|
const TileInfo *const tile,
|
||
|
int block, int ref, int mi_row, int mi_col,
|
||
|
int_mv *nearest_mv, int_mv *near_mv);
|
||
|
|
||
|
#ifdef __cplusplus
|
||
|
} // extern "C"
|
||
|
#endif
|
||
|
|
||
|
#endif // VP9_COMMON_VP9_MVREF_COMMON_H_
|