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-rw-r--r--third_party/aom/av1/encoder/encodemv.c239
1 files changed, 0 insertions, 239 deletions
diff --git a/third_party/aom/av1/encoder/encodemv.c b/third_party/aom/av1/encoder/encodemv.c
deleted file mode 100644
index 42eb5abf6..000000000
--- a/third_party/aom/av1/encoder/encodemv.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * 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.
- */
-
-#include <math.h>
-
-#include "av1/common/common.h"
-#include "av1/common/entropymode.h"
-
-#include "av1/encoder/cost.h"
-#include "av1/encoder/encodemv.h"
-
-#include "aom_dsp/aom_dsp_common.h"
-#include "aom_ports/bitops.h"
-
-static INLINE int mv_class_base(MV_CLASS_TYPE c) {
- return c ? CLASS0_SIZE << (c + 2) : 0;
-}
-
-// If n != 0, returns the floor of log base 2 of n. If n == 0, returns 0.
-static INLINE uint8_t log_in_base_2(unsigned int n) {
- // get_msb() is only valid when n != 0.
- return n == 0 ? 0 : get_msb(n);
-}
-
-static INLINE MV_CLASS_TYPE get_mv_class(int z, int *offset) {
- const MV_CLASS_TYPE c = (z >= CLASS0_SIZE * 4096)
- ? MV_CLASS_10
- : (MV_CLASS_TYPE)log_in_base_2(z >> 3);
- if (offset) *offset = z - mv_class_base(c);
- return c;
-}
-
-static void encode_mv_component(aom_writer *w, int comp, nmv_component *mvcomp,
- MvSubpelPrecision precision) {
- assert(comp != 0);
- int offset;
- const int sign = comp < 0;
- const int mag = sign ? -comp : comp;
- const int mv_class = get_mv_class(mag - 1, &offset);
- const int d = offset >> 3; // int mv data
- const int fr = (offset >> 1) & 3; // fractional mv data
- const int hp = offset & 1; // high precision mv data
-
- // Sign
- aom_write_symbol(w, sign, mvcomp->sign_cdf, 2);
-
- // Class
- aom_write_symbol(w, mv_class, mvcomp->classes_cdf, MV_CLASSES);
-
- // Integer bits
- if (mv_class == MV_CLASS_0) {
- aom_write_symbol(w, d, mvcomp->class0_cdf, CLASS0_SIZE);
- } else {
- int i;
- const int n = mv_class + CLASS0_BITS - 1; // number of bits
- for (i = 0; i < n; ++i)
- aom_write_symbol(w, (d >> i) & 1, mvcomp->bits_cdf[i], 2);
- }
- // Fractional bits
- if (precision > MV_SUBPEL_NONE) {
- aom_write_symbol(
- w, fr,
- mv_class == MV_CLASS_0 ? mvcomp->class0_fp_cdf[d] : mvcomp->fp_cdf,
- MV_FP_SIZE);
- }
-
- // High precision bit
- if (precision > MV_SUBPEL_LOW_PRECISION)
- aom_write_symbol(
- w, hp, mv_class == MV_CLASS_0 ? mvcomp->class0_hp_cdf : mvcomp->hp_cdf,
- 2);
-}
-
-static void build_nmv_component_cost_table(int *mvcost,
- const nmv_component *const mvcomp,
- MvSubpelPrecision precision) {
- int i, v;
- int sign_cost[2], class_cost[MV_CLASSES], class0_cost[CLASS0_SIZE];
- int bits_cost[MV_OFFSET_BITS][2];
- int class0_fp_cost[CLASS0_SIZE][MV_FP_SIZE], fp_cost[MV_FP_SIZE];
- int class0_hp_cost[2], hp_cost[2];
-
- av1_cost_tokens_from_cdf(sign_cost, mvcomp->sign_cdf, NULL);
- av1_cost_tokens_from_cdf(class_cost, mvcomp->classes_cdf, NULL);
- av1_cost_tokens_from_cdf(class0_cost, mvcomp->class0_cdf, NULL);
- for (i = 0; i < MV_OFFSET_BITS; ++i) {
- av1_cost_tokens_from_cdf(bits_cost[i], mvcomp->bits_cdf[i], NULL);
- }
-
- for (i = 0; i < CLASS0_SIZE; ++i)
- av1_cost_tokens_from_cdf(class0_fp_cost[i], mvcomp->class0_fp_cdf[i], NULL);
- av1_cost_tokens_from_cdf(fp_cost, mvcomp->fp_cdf, NULL);
-
- if (precision > MV_SUBPEL_LOW_PRECISION) {
- av1_cost_tokens_from_cdf(class0_hp_cost, mvcomp->class0_hp_cdf, NULL);
- av1_cost_tokens_from_cdf(hp_cost, mvcomp->hp_cdf, NULL);
- }
- mvcost[0] = 0;
- for (v = 1; v <= MV_MAX; ++v) {
- int z, c, o, d, e, f, cost = 0;
- z = v - 1;
- c = get_mv_class(z, &o);
- cost += class_cost[c];
- d = (o >> 3); /* int mv data */
- f = (o >> 1) & 3; /* fractional pel mv data */
- e = (o & 1); /* high precision mv data */
- if (c == MV_CLASS_0) {
- cost += class0_cost[d];
- } else {
- const int b = c + CLASS0_BITS - 1; /* number of bits */
- for (i = 0; i < b; ++i) cost += bits_cost[i][((d >> i) & 1)];
- }
- if (precision > MV_SUBPEL_NONE) {
- if (c == MV_CLASS_0) {
- cost += class0_fp_cost[d][f];
- } else {
- cost += fp_cost[f];
- }
- if (precision > MV_SUBPEL_LOW_PRECISION) {
- if (c == MV_CLASS_0) {
- cost += class0_hp_cost[e];
- } else {
- cost += hp_cost[e];
- }
- }
- }
- mvcost[v] = cost + sign_cost[0];
- mvcost[-v] = cost + sign_cost[1];
- }
-}
-
-void av1_encode_mv(AV1_COMP *cpi, aom_writer *w, const MV *mv, const MV *ref,
- nmv_context *mvctx, int usehp) {
- const MV diff = { mv->row - ref->row, mv->col - ref->col };
- const MV_JOINT_TYPE j = av1_get_mv_joint(&diff);
- if (cpi->common.cur_frame_force_integer_mv) {
- usehp = MV_SUBPEL_NONE;
- }
- aom_write_symbol(w, j, mvctx->joints_cdf, MV_JOINTS);
- if (mv_joint_vertical(j))
- encode_mv_component(w, diff.row, &mvctx->comps[0], usehp);
-
- if (mv_joint_horizontal(j))
- encode_mv_component(w, diff.col, &mvctx->comps[1], usehp);
-
- // If auto_mv_step_size is enabled then keep track of the largest
- // motion vector component used.
- if (cpi->sf.mv.auto_mv_step_size) {
- unsigned int maxv = AOMMAX(abs(mv->row), abs(mv->col)) >> 3;
- cpi->max_mv_magnitude = AOMMAX(maxv, cpi->max_mv_magnitude);
- }
-}
-
-void av1_encode_dv(aom_writer *w, const MV *mv, const MV *ref,
- nmv_context *mvctx) {
- // DV and ref DV should not have sub-pel.
- assert((mv->col & 7) == 0);
- assert((mv->row & 7) == 0);
- assert((ref->col & 7) == 0);
- assert((ref->row & 7) == 0);
- const MV diff = { mv->row - ref->row, mv->col - ref->col };
- const MV_JOINT_TYPE j = av1_get_mv_joint(&diff);
-
- aom_write_symbol(w, j, mvctx->joints_cdf, MV_JOINTS);
- if (mv_joint_vertical(j))
- encode_mv_component(w, diff.row, &mvctx->comps[0], MV_SUBPEL_NONE);
-
- if (mv_joint_horizontal(j))
- encode_mv_component(w, diff.col, &mvctx->comps[1], MV_SUBPEL_NONE);
-}
-
-void av1_build_nmv_cost_table(int *mvjoint, int *mvcost[2],
- const nmv_context *ctx,
- MvSubpelPrecision precision) {
- av1_cost_tokens_from_cdf(mvjoint, ctx->joints_cdf, NULL);
- build_nmv_component_cost_table(mvcost[0], &ctx->comps[0], precision);
- build_nmv_component_cost_table(mvcost[1], &ctx->comps[1], precision);
-}
-
-int_mv av1_get_ref_mv_from_stack(int ref_idx,
- const MV_REFERENCE_FRAME *ref_frame,
- int ref_mv_idx,
- const MB_MODE_INFO_EXT *mbmi_ext) {
- const int8_t ref_frame_type = av1_ref_frame_type(ref_frame);
- const CANDIDATE_MV *curr_ref_mv_stack =
- mbmi_ext->ref_mv_stack[ref_frame_type];
- int_mv ref_mv;
- ref_mv.as_int = INVALID_MV;
-
- if (ref_frame[1] > INTRA_FRAME) {
- if (ref_idx == 0) {
- ref_mv = curr_ref_mv_stack[ref_mv_idx].this_mv;
- } else {
- assert(ref_idx == 1);
- ref_mv = curr_ref_mv_stack[ref_mv_idx].comp_mv;
- }
- } else {
- assert(ref_idx == 0);
- if (ref_mv_idx < mbmi_ext->ref_mv_count[ref_frame_type]) {
- ref_mv = curr_ref_mv_stack[ref_mv_idx].this_mv;
- } else {
- ref_mv = mbmi_ext->global_mvs[ref_frame_type];
- }
- }
- return ref_mv;
-}
-
-int_mv av1_get_ref_mv(const MACROBLOCK *x, int ref_idx) {
- const MACROBLOCKD *xd = &x->e_mbd;
- const MB_MODE_INFO *mbmi = xd->mi[0];
- int ref_mv_idx = mbmi->ref_mv_idx;
- if (mbmi->mode == NEAR_NEWMV || mbmi->mode == NEW_NEARMV) {
- assert(has_second_ref(mbmi));
- ref_mv_idx += 1;
- }
- return av1_get_ref_mv_from_stack(ref_idx, mbmi->ref_frame, ref_mv_idx,
- x->mbmi_ext);
-}
-
-void av1_find_best_ref_mvs_from_stack(int allow_hp,
- const MB_MODE_INFO_EXT *mbmi_ext,
- MV_REFERENCE_FRAME ref_frame,
- int_mv *nearest_mv, int_mv *near_mv,
- int is_integer) {
- const int ref_idx = 0;
- MV_REFERENCE_FRAME ref_frames[2] = { ref_frame, NONE_FRAME };
- *nearest_mv = av1_get_ref_mv_from_stack(ref_idx, ref_frames, 0, mbmi_ext);
- lower_mv_precision(&nearest_mv->as_mv, allow_hp, is_integer);
- *near_mv = av1_get_ref_mv_from_stack(ref_idx, ref_frames, 1, mbmi_ext);
- lower_mv_precision(&near_mv->as_mv, allow_hp, is_integer);
-}
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