Merge pull request #850 from trav90/add-av1-support

Add initial support for AV1 video.

1 files changed, 161 insertions, 0 deletions

diff --git a/third_party/aom/av1/encoder/mcomp.h b/third_party/aom/av1/encoder/mcomp.h
new file mode 100644
index 000000000..a975218b0
--- /dev/null
+++ b/third_party/aom/av1/encoder/mcomp.h
@@ -0,0 +1,161 @@
+/*
+ * 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_ENCODER_MCOMP_H_
+#define AOM_AV1_ENCODER_MCOMP_H_
+
+#include "av1/encoder/block.h"
+#include "aom_dsp/variance.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// The maximum number of steps in a step search given the largest
+// allowed initial step
+#define MAX_MVSEARCH_STEPS 11
+// Max full pel mv specified in the unit of full pixel
+// Enable the use of motion vector in range [-1023, 1023].
+#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS - 1)) - 1)
+// Maximum size of the first step in full pel units
+#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS - 1))
+// Allowed motion vector pixel distance outside image border
+// for Block_16x16
+#define BORDER_MV_PIXELS_B16 (16 + AOM_INTERP_EXTEND)
+
+#define SEARCH_RANGE_8P 3
+#define SEARCH_GRID_STRIDE_8P (2 * SEARCH_RANGE_8P + 1)
+#define SEARCH_GRID_CENTER_8P \
+  (SEARCH_RANGE_8P * SEARCH_GRID_STRIDE_8P + SEARCH_RANGE_8P)
+
+// motion search site
+typedef struct search_site {
+  MV mv;
+  int offset;
+} search_site;
+
+typedef struct search_site_config {
+  search_site ss[8 * MAX_MVSEARCH_STEPS + 1];
+  int ss_count;
+  int searches_per_step;
+} search_site_config;
+
+typedef struct {
+  MV coord;
+  int coord_offset;
+} search_neighbors;
+
+void av1_init_dsmotion_compensation(search_site_config *cfg, int stride);
+void av1_init3smotion_compensation(search_site_config *cfg, int stride);
+
+void av1_set_mv_search_range(MvLimits *mv_limits, const MV *mv);
+
+int av1_mv_bit_cost(const MV *mv, const MV *ref, const int *mvjcost,
+                    int *mvcost[2], int weight);
+
+// Utility to compute variance + MV rate cost for a given MV
+int av1_get_mvpred_var(const MACROBLOCK *x, const MV *best_mv,
+                       const MV *center_mv, const aom_variance_fn_ptr_t *vfp,
+                       int use_mvcost);
+int av1_get_mvpred_av_var(const MACROBLOCK *x, const MV *best_mv,
+                          const MV *center_mv, const uint8_t *second_pred,
+                          const aom_variance_fn_ptr_t *vfp, int use_mvcost);
+int av1_get_mvpred_mask_var(const MACROBLOCK *x, const MV *best_mv,
+                            const MV *center_mv, const uint8_t *second_pred,
+                            const uint8_t *mask, int mask_stride,
+                            int invert_mask, const aom_variance_fn_ptr_t *vfp,
+                            int use_mvcost);
+
+struct AV1_COMP;
+struct SPEED_FEATURES;
+
+int av1_init_search_range(int size);
+
+int av1_refining_search_sad(struct macroblock *x, MV *ref_mv, int sad_per_bit,
+                            int distance, const aom_variance_fn_ptr_t *fn_ptr,
+                            const MV *center_mv);
+
+// Runs sequence of diamond searches in smaller steps for RD.
+int av1_full_pixel_diamond(const struct AV1_COMP *cpi, MACROBLOCK *x,
+                           MV *mvp_full, int step_param, int sadpb,
+                           int further_steps, int do_refine, int *cost_list,
+                           const aom_variance_fn_ptr_t *fn_ptr,
+                           const MV *ref_mv, MV *dst_mv);
+
+int av1_hex_search(MACROBLOCK *x, MV *start_mv, int search_param,
+                   int sad_per_bit, int do_init_search, int *cost_list,
+                   const aom_variance_fn_ptr_t *vfp, int use_mvcost,
+                   const MV *center_mv);
+
+typedef int(fractional_mv_step_fp)(
+    MACROBLOCK *x, const AV1_COMMON *const cm, int mi_row, int mi_col,
+    const MV *ref_mv, int allow_hp, int error_per_bit,
+    const aom_variance_fn_ptr_t *vfp,
+    int forced_stop,  // 0 - full, 1 - qtr only, 2 - half only
+    int iters_per_step, int *cost_list, int *mvjcost, int *mvcost[2],
+    int *distortion, unsigned int *sse1, const uint8_t *second_pred,
+    const uint8_t *mask, int mask_stride, int invert_mask, int w, int h,
+    int use_accurate_subpel_search);
+
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree;
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned;
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned_more;
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned_evenmore;
+extern fractional_mv_step_fp av1_return_max_sub_pixel_mv;
+extern fractional_mv_step_fp av1_return_min_sub_pixel_mv;
+
+typedef int (*av1_full_search_fn_t)(const MACROBLOCK *x, const MV *ref_mv,
+                                    int sad_per_bit, int distance,
+                                    const aom_variance_fn_ptr_t *fn_ptr,
+                                    const MV *center_mv, MV *best_mv);
+
+typedef int (*av1_diamond_search_fn_t)(
+    MACROBLOCK *x, const search_site_config *cfg, MV *ref_mv, MV *best_mv,
+    int search_param, int sad_per_bit, int *num00,
+    const aom_variance_fn_ptr_t *fn_ptr, const MV *center_mv);
+
+int av1_refining_search_8p_c(MACROBLOCK *x, int error_per_bit, int search_range,
+                             const aom_variance_fn_ptr_t *fn_ptr,
+                             const uint8_t *mask, int mask_stride,
+                             int invert_mask, const MV *center_mv,
+                             const uint8_t *second_pred);
+
+int av1_full_pixel_search(const struct AV1_COMP *cpi, MACROBLOCK *x,
+                          BLOCK_SIZE bsize, MV *mvp_full, int step_param,
+                          int method, int run_mesh_search, int error_per_bit,
+                          int *cost_list, const MV *ref_mv, int var_max, int rd,
+                          int x_pos, int y_pos, int intra);
+
+int av1_obmc_full_pixel_search(const struct AV1_COMP *cpi, MACROBLOCK *x,
+                               MV *mvp_full, int step_param, int sadpb,
+                               int further_steps, int do_refine,
+                               const aom_variance_fn_ptr_t *fn_ptr,
+                               const MV *ref_mv, MV *dst_mv, int is_second);
+int av1_find_best_obmc_sub_pixel_tree_up(
+    MACROBLOCK *x, const AV1_COMMON *const cm, int mi_row, int mi_col,
+    MV *bestmv, const MV *ref_mv, int allow_hp, int error_per_bit,
+    const aom_variance_fn_ptr_t *vfp, int forced_stop, int iters_per_step,
+    int *mvjcost, int *mvcost[2], int *distortion, unsigned int *sse1,
+    int is_second, int use_accurate_subpel_search);
+
+unsigned int av1_compute_motion_cost(const struct AV1_COMP *cpi,
+                                     MACROBLOCK *const x, BLOCK_SIZE bsize,
+                                     int mi_row, int mi_col, const MV *this_mv);
+unsigned int av1_refine_warped_mv(const struct AV1_COMP *cpi,
+                                  MACROBLOCK *const x, BLOCK_SIZE bsize,
+                                  int mi_row, int mi_col, int *pts0,
+                                  int *pts_inref0, int total_samples);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // AOM_AV1_ENCODER_MCOMP_H_