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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /media/libvpx/vp9/common/vp9_mvref_common.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+/*
+ * 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_