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encoder.c
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encoder.c
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/*
* 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 <limits.h>
#include <math.h>
#include <stdio.h>
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "config/aom_scale_rtcd.h"
#include "config/av1_rtcd.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/aom_filter.h"
#if CONFIG_DENOISE
#include "aom_dsp/grain_table.h"
#include "aom_dsp/noise_util.h"
#include "aom_dsp/noise_model.h"
#endif
#include "aom_dsp/psnr.h"
#if CONFIG_INTERNAL_STATS
#include "aom_dsp/ssim.h"
#endif
#include "aom_ports/aom_timer.h"
#include "aom_ports/mem.h"
#include "aom_ports/system_state.h"
#include "aom_scale/aom_scale.h"
#if CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG
#include "aom_util/debug_util.h"
#endif // CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG
#include "av1/common/alloccommon.h"
#include "av1/common/cdef.h"
#include "av1/common/filter.h"
#include "av1/common/idct.h"
#include "av1/common/reconinter.h"
#include "av1/common/reconintra.h"
#include "av1/common/resize.h"
#include "av1/common/tile_common.h"
#include "av1/encoder/aq_complexity.h"
#include "av1/encoder/aq_cyclicrefresh.h"
#include "av1/encoder/aq_variance.h"
#include "av1/encoder/bitstream.h"
#include "av1/encoder/context_tree.h"
#include "av1/encoder/encodeframe.h"
#include "av1/encoder/encodemv.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/encodetxb.h"
#include "av1/encoder/ethread.h"
#include "av1/encoder/firstpass.h"
#include "av1/encoder/grain_test_vectors.h"
#include "av1/encoder/hash_motion.h"
#include "av1/encoder/mbgraph.h"
#include "av1/encoder/picklpf.h"
#include "av1/encoder/pickrst.h"
#include "av1/encoder/random.h"
#include "av1/encoder/ratectrl.h"
#include "av1/encoder/rd.h"
#include "av1/encoder/segmentation.h"
#include "av1/encoder/speed_features.h"
#include "av1/encoder/temporal_filter.h"
#define DEFAULT_EXPLICIT_ORDER_HINT_BITS 7
// av1 uses 10,000,000 ticks/second as time stamp
#define TICKS_PER_SEC 10000000LL
#if CONFIG_ENTROPY_STATS
FRAME_COUNTS aggregate_fc;
#endif // CONFIG_ENTROPY_STATS
#define AM_SEGMENT_ID_INACTIVE 7
#define AM_SEGMENT_ID_ACTIVE 0
// Whether to use high precision mv for altref computation.
#define ALTREF_HIGH_PRECISION_MV 1
// Q threshold for high precision mv. Choose a very high value for now so that
// HIGH_PRECISION is always chosen.
#define HIGH_PRECISION_MV_QTHRESH 200
// #define OUTPUT_YUV_REC
#ifdef OUTPUT_YUV_SKINMAP
FILE *yuv_skinmap_file = NULL;
#endif
#ifdef OUTPUT_YUV_REC
FILE *yuv_rec_file;
#define FILE_NAME_LEN 100
#endif
static INLINE void Scale2Ratio(AOM_SCALING mode, int *hr, int *hs) {
switch (mode) {
case NORMAL:
*hr = 1;
*hs = 1;
break;
case FOURFIVE:
*hr = 4;
*hs = 5;
break;
case THREEFIVE:
*hr = 3;
*hs = 5;
break;
case ONETWO:
*hr = 1;
*hs = 2;
break;
default:
*hr = 1;
*hs = 1;
assert(0);
break;
}
}
// Mark all inactive blocks as active. Other segmentation features may be set
// so memset cannot be used, instead only inactive blocks should be reset.
static void suppress_active_map(AV1_COMP *cpi) {
unsigned char *const seg_map = cpi->segmentation_map;
int i;
if (cpi->active_map.enabled || cpi->active_map.update)
for (i = 0; i < cpi->common.mi_rows * cpi->common.mi_cols; ++i)
if (seg_map[i] == AM_SEGMENT_ID_INACTIVE)
seg_map[i] = AM_SEGMENT_ID_ACTIVE;
}
static void apply_active_map(AV1_COMP *cpi) {
struct segmentation *const seg = &cpi->common.seg;
unsigned char *const seg_map = cpi->segmentation_map;
const unsigned char *const active_map = cpi->active_map.map;
int i;
assert(AM_SEGMENT_ID_ACTIVE == CR_SEGMENT_ID_BASE);
if (frame_is_intra_only(&cpi->common)) {
cpi->active_map.enabled = 0;
cpi->active_map.update = 1;
}
if (cpi->active_map.update) {
if (cpi->active_map.enabled) {
for (i = 0; i < cpi->common.mi_rows * cpi->common.mi_cols; ++i)
if (seg_map[i] == AM_SEGMENT_ID_ACTIVE) seg_map[i] = active_map[i];
av1_enable_segmentation(seg);
av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H);
av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V);
av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U);
av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V);
av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H,
-MAX_LOOP_FILTER);
av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V,
-MAX_LOOP_FILTER);
av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U,
-MAX_LOOP_FILTER);
av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V,
-MAX_LOOP_FILTER);
} else {
av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H);
av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V);
av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U);
av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V);
if (seg->enabled) {
seg->update_data = 1;
seg->update_map = 1;
}
}
cpi->active_map.update = 0;
}
}
int av1_set_active_map(AV1_COMP *cpi, unsigned char *new_map_16x16, int rows,
int cols) {
if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols) {
unsigned char *const active_map_8x8 = cpi->active_map.map;
const int mi_rows = cpi->common.mi_rows;
const int mi_cols = cpi->common.mi_cols;
const int row_scale = mi_size_high[BLOCK_16X16] == 2 ? 1 : 2;
const int col_scale = mi_size_wide[BLOCK_16X16] == 2 ? 1 : 2;
cpi->active_map.update = 1;
if (new_map_16x16) {
int r, c;
for (r = 0; r < mi_rows; ++r) {
for (c = 0; c < mi_cols; ++c) {
active_map_8x8[r * mi_cols + c] =
new_map_16x16[(r >> row_scale) * cols + (c >> col_scale)]
? AM_SEGMENT_ID_ACTIVE
: AM_SEGMENT_ID_INACTIVE;
}
}
cpi->active_map.enabled = 1;
} else {
cpi->active_map.enabled = 0;
}
return 0;
} else {
return -1;
}
}
int av1_get_active_map(AV1_COMP *cpi, unsigned char *new_map_16x16, int rows,
int cols) {
if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols &&
new_map_16x16) {
unsigned char *const seg_map_8x8 = cpi->segmentation_map;
const int mi_rows = cpi->common.mi_rows;
const int mi_cols = cpi->common.mi_cols;
const int row_scale = mi_size_high[BLOCK_16X16] == 2 ? 1 : 2;
const int col_scale = mi_size_wide[BLOCK_16X16] == 2 ? 1 : 2;
memset(new_map_16x16, !cpi->active_map.enabled, rows * cols);
if (cpi->active_map.enabled) {
int r, c;
for (r = 0; r < mi_rows; ++r) {
for (c = 0; c < mi_cols; ++c) {
// Cyclic refresh segments are considered active despite not having
// AM_SEGMENT_ID_ACTIVE
new_map_16x16[(r >> row_scale) * cols + (c >> col_scale)] |=
seg_map_8x8[r * mi_cols + c] != AM_SEGMENT_ID_INACTIVE;
}
}
}
return 0;
} else {
return -1;
}
}
static void set_high_precision_mv(AV1_COMP *cpi, int allow_high_precision_mv,
int cur_frame_force_integer_mv) {
MACROBLOCK *const mb = &cpi->td.mb;
cpi->common.allow_high_precision_mv =
allow_high_precision_mv && cur_frame_force_integer_mv == 0;
const int copy_hp =
cpi->common.allow_high_precision_mv && cur_frame_force_integer_mv == 0;
int *(*src)[2] = copy_hp ? &mb->nmvcost_hp : &mb->nmvcost;
mb->mv_cost_stack = *src;
}
static BLOCK_SIZE select_sb_size(const AV1_COMP *const cpi) {
const AV1_COMMON *const cm = &cpi->common;
if (cpi->oxcf.superblock_size == AOM_SUPERBLOCK_SIZE_64X64)
return BLOCK_64X64;
#if CONFIG_FILEOPTIONS
if (cm->options && cm->options->ext_partition)
#endif
if (cpi->oxcf.superblock_size == AOM_SUPERBLOCK_SIZE_128X128)
return BLOCK_128X128;
assert(cpi->oxcf.superblock_size == AOM_SUPERBLOCK_SIZE_DYNAMIC);
// TODO(any): Possibly could improve this with a heuristic.
#if CONFIG_FILEOPTIONS
if (cm->options && !cm->options->ext_partition) return BLOCK_64X64;
#endif
// When superres / resize is on, 'cm->width / height' can change between
// calls, so we don't apply this heuristic there. Also, this heuristic gives
// compression gain for speed >= 2 only.
if (cpi->oxcf.superres_mode == SUPERRES_NONE &&
cpi->oxcf.resize_mode == RESIZE_NONE && cpi->oxcf.speed >= 2) {
return (cm->width >= 480 && cm->height >= 360) ? BLOCK_128X128
: BLOCK_64X64;
}
return BLOCK_128X128;
}
static void setup_frame(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
// Set up entropy context depending on frame type. The decoder mandates
// the use of the default context, index 0, for keyframes and inter
// frames where the error_resilient_mode or intra_only flag is set. For
// other inter-frames the encoder currently uses only two contexts;
// context 1 for ALTREF frames and context 0 for the others.
cm->primary_ref_frame = PRIMARY_REF_NONE;
if (frame_is_intra_only(cm) || cm->error_resilient_mode ||
cm->force_primary_ref_none) {
av1_setup_past_independence(cm);
for (int i = 0; i < REF_FRAMES; i++) {
cm->fb_of_context_type[i] = -1;
}
cm->fb_of_context_type[REGULAR_FRAME] =
cm->show_frame ? get_ref_frame_map_idx(cpi, GOLDEN_FRAME)
: get_ref_frame_map_idx(cpi, ALTREF_FRAME);
cm->frame_context_idx = REGULAR_FRAME;
} else {
const GF_GROUP *gf_group = &cpi->twopass.gf_group;
if (gf_group->update_type[gf_group->index] == INTNL_ARF_UPDATE)
cm->frame_context_idx = EXT_ARF_FRAME;
else if (cpi->refresh_alt_ref_frame)
cm->frame_context_idx = ARF_FRAME;
else if (cpi->rc.is_src_frame_alt_ref)
cm->frame_context_idx = OVERLAY_FRAME;
else if (cpi->refresh_golden_frame)
cm->frame_context_idx = GLD_FRAME;
else if (cpi->refresh_bwd_ref_frame)
cm->frame_context_idx = BRF_FRAME;
else
cm->frame_context_idx = REGULAR_FRAME;
int wanted_fb = cm->fb_of_context_type[cm->frame_context_idx];
for (int ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) {
int fb = get_ref_frame_map_idx(cpi, ref_frame);
if (fb == wanted_fb) {
cm->primary_ref_frame = ref_frame - LAST_FRAME;
}
}
}
if (cm->frame_type == KEY_FRAME && cm->show_frame) {
cpi->refresh_golden_frame = 1;
cpi->refresh_alt_ref_frame = 1;
av1_zero(cpi->interp_filter_selected);
set_sb_size(&cm->seq_params, select_sb_size(cpi));
set_use_reference_buffer(cm, 0);
} else if (frame_is_sframe(cm)) {
cpi->refresh_golden_frame = 1;
cpi->refresh_alt_ref_frame = 1;
av1_zero(cpi->interp_filter_selected);
set_sb_size(&cm->seq_params, select_sb_size(cpi));
} else {
if (cm->primary_ref_frame == PRIMARY_REF_NONE ||
cm->frame_refs[cm->primary_ref_frame].idx < 0) {
av1_setup_past_independence(cm);
cm->seg.update_map = 1;
cm->seg.update_data = 1;
} else {
*cm->fc = cm->frame_contexts[cm->frame_refs[cm->primary_ref_frame].idx];
}
av1_zero(cpi->interp_filter_selected[0]);
}
cm->prev_frame = get_prev_frame(cm);
cpi->vaq_refresh = 0;
}
static void enc_setup_mi(AV1_COMMON *cm) {
int i;
int mi_rows_sb_aligned = calc_mi_size(cm->mi_rows);
cm->mi = cm->mip;
memset(cm->mip, 0, cm->mi_stride * mi_rows_sb_aligned * sizeof(*cm->mip));
cm->prev_mi = cm->prev_mip;
// Clear top border row
memset(cm->prev_mip, 0, sizeof(*cm->prev_mip) * cm->mi_stride);
// Clear left border column
for (i = 0; i < mi_rows_sb_aligned; ++i)
memset(&cm->prev_mip[i * cm->mi_stride], 0, sizeof(*cm->prev_mip));
cm->mi_grid_visible = cm->mi_grid_base;
cm->prev_mi_grid_visible = cm->prev_mi_grid_base;
memset(cm->mi_grid_base, 0,
cm->mi_stride * mi_rows_sb_aligned * sizeof(*cm->mi_grid_base));
}
static int enc_alloc_mi(AV1_COMMON *cm, int mi_size) {
cm->mip = aom_calloc(mi_size, sizeof(*cm->mip));
if (!cm->mip) return 1;
cm->prev_mip = aom_calloc(mi_size, sizeof(*cm->prev_mip));
if (!cm->prev_mip) return 1;
cm->mi_alloc_size = mi_size;
cm->mi_grid_base =
(MB_MODE_INFO **)aom_calloc(mi_size, sizeof(MB_MODE_INFO *));
if (!cm->mi_grid_base) return 1;
cm->prev_mi_grid_base =
(MB_MODE_INFO **)aom_calloc(mi_size, sizeof(MB_MODE_INFO *));
if (!cm->prev_mi_grid_base) return 1;
return 0;
}
static void enc_free_mi(AV1_COMMON *cm) {
aom_free(cm->mip);
cm->mip = NULL;
aom_free(cm->prev_mip);
cm->prev_mip = NULL;
aom_free(cm->mi_grid_base);
cm->mi_grid_base = NULL;
aom_free(cm->prev_mi_grid_base);
cm->prev_mi_grid_base = NULL;
cm->mi_alloc_size = 0;
}
static void swap_mi_and_prev_mi(AV1_COMMON *cm) {
// Current mip will be the prev_mip for the next frame.
MB_MODE_INFO **temp_base = cm->prev_mi_grid_base;
MB_MODE_INFO *temp = cm->prev_mip;
cm->prev_mip = cm->mip;
cm->mip = temp;
// Update the upper left visible macroblock ptrs.
cm->mi = cm->mip;
cm->prev_mi = cm->prev_mip;
cm->prev_mi_grid_base = cm->mi_grid_base;
cm->mi_grid_base = temp_base;
cm->mi_grid_visible = cm->mi_grid_base;
cm->prev_mi_grid_visible = cm->prev_mi_grid_base;
}
void av1_initialize_enc(void) {
av1_rtcd();
aom_dsp_rtcd();
aom_scale_rtcd();
av1_init_intra_predictors();
av1_init_me_luts();
av1_rc_init_minq_luts();
av1_init_wedge_masks();
}
static void dealloc_context_buffers_ext(AV1_COMP *cpi) {
if (cpi->mbmi_ext_base) {
aom_free(cpi->mbmi_ext_base);
cpi->mbmi_ext_base = NULL;
}
}
static void alloc_context_buffers_ext(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
int mi_size = cm->mi_cols * cm->mi_rows;
dealloc_context_buffers_ext(cpi);
CHECK_MEM_ERROR(cm, cpi->mbmi_ext_base,
aom_calloc(mi_size, sizeof(*cpi->mbmi_ext_base)));
}
static void update_film_grain_parameters(struct AV1_COMP *cpi,
const AV1EncoderConfig *oxcf) {
AV1_COMMON *const cm = &cpi->common;
cpi->oxcf = *oxcf;
if (cpi->film_grain_table) {
aom_film_grain_table_free(cpi->film_grain_table);
aom_free(cpi->film_grain_table);
cpi->film_grain_table = NULL;
}
if (oxcf->film_grain_test_vector) {
cm->seq_params.film_grain_params_present = 1;
if (cm->frame_type == KEY_FRAME) {
memcpy(&cm->film_grain_params,
film_grain_test_vectors + oxcf->film_grain_test_vector - 1,
sizeof(cm->film_grain_params));
cm->film_grain_params.bit_depth = cm->seq_params.bit_depth;
if (cm->seq_params.color_range == AOM_CR_FULL_RANGE) {
cm->film_grain_params.clip_to_restricted_range = 0;
}
}
} else if (oxcf->film_grain_table_filename) {
cpi->film_grain_table = aom_malloc(sizeof(*cpi->film_grain_table));
memset(cpi->film_grain_table, 0, sizeof(aom_film_grain_table_t));
aom_film_grain_table_read(cpi->film_grain_table,
oxcf->film_grain_table_filename, &cm->error);
} else {
cm->seq_params.film_grain_params_present = 0;
memset(&cm->film_grain_params, 0, sizeof(cm->film_grain_params));
}
}
static void dealloc_compressor_data(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
const int num_planes = av1_num_planes(cm);
dealloc_context_buffers_ext(cpi);
aom_free(cpi->tile_data);
cpi->tile_data = NULL;
// Delete sementation map
aom_free(cpi->segmentation_map);
cpi->segmentation_map = NULL;
av1_cyclic_refresh_free(cpi->cyclic_refresh);
cpi->cyclic_refresh = NULL;
aom_free(cpi->active_map.map);
cpi->active_map.map = NULL;
aom_free(cpi->td.mb.above_pred_buf);
cpi->td.mb.above_pred_buf = NULL;
aom_free(cpi->td.mb.left_pred_buf);
cpi->td.mb.left_pred_buf = NULL;
aom_free(cpi->td.mb.wsrc_buf);
cpi->td.mb.wsrc_buf = NULL;
for (int i = 0; i < 2; i++)
for (int j = 0; j < 2; j++) {
aom_free(cpi->td.mb.hash_value_buffer[i][j]);
cpi->td.mb.hash_value_buffer[i][j] = NULL;
}
aom_free(cpi->td.mb.mask_buf);
cpi->td.mb.mask_buf = NULL;
aom_free(cm->tpl_mvs);
cm->tpl_mvs = NULL;
av1_free_ref_frame_buffers(cm->buffer_pool);
av1_free_txb_buf(cpi);
av1_free_context_buffers(cm);
aom_free_frame_buffer(&cpi->last_frame_uf);
av1_free_restoration_buffers(cm);
aom_free_frame_buffer(&cpi->trial_frame_rst);
aom_free_frame_buffer(&cpi->scaled_source);
aom_free_frame_buffer(&cpi->scaled_last_source);
aom_free_frame_buffer(&cpi->alt_ref_buffer);
av1_lookahead_destroy(cpi->lookahead);
aom_free(cpi->tile_tok[0][0]);
cpi->tile_tok[0][0] = 0;
aom_free(cpi->tplist[0][0]);
cpi->tplist[0][0] = NULL;
av1_free_pc_tree(&cpi->td, num_planes);
aom_free(cpi->td.mb.palette_buffer);
aom_free(cpi->td.mb.tmp_conv_dst);
for (int j = 0; j < 2; ++j) {
aom_free(cpi->td.mb.tmp_obmc_bufs[j]);
}
#if CONFIG_DENOISE
if (cpi->denoise_and_model) {
aom_denoise_and_model_free(cpi->denoise_and_model);
cpi->denoise_and_model = NULL;
}
#endif
if (cpi->film_grain_table) {
aom_film_grain_table_free(cpi->film_grain_table);
cpi->film_grain_table = NULL;
}
}
static void save_coding_context(AV1_COMP *cpi) {
CODING_CONTEXT *const cc = &cpi->coding_context;
AV1_COMMON *cm = &cpi->common;
// Stores a snapshot of key state variables which can subsequently be
// restored with a call to av1_restore_coding_context. These functions are
// intended for use in a re-code loop in av1_compress_frame where the
// quantizer value is adjusted between loop iterations.
av1_copy(cc->nmv_vec_cost, cpi->td.mb.nmv_vec_cost);
av1_copy(cc->nmv_costs, cpi->nmv_costs);
av1_copy(cc->nmv_costs_hp, cpi->nmv_costs_hp);
cc->fc = *cm->fc;
}
static void restore_coding_context(AV1_COMP *cpi) {
CODING_CONTEXT *const cc = &cpi->coding_context;
AV1_COMMON *cm = &cpi->common;
// Restore key state variables to the snapshot state stored in the
// previous call to av1_save_coding_context.
av1_copy(cpi->td.mb.nmv_vec_cost, cc->nmv_vec_cost);
av1_copy(cpi->nmv_costs, cc->nmv_costs);
av1_copy(cpi->nmv_costs_hp, cc->nmv_costs_hp);
*cm->fc = cc->fc;
}
static void configure_static_seg_features(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
const RATE_CONTROL *const rc = &cpi->rc;
struct segmentation *const seg = &cm->seg;
int high_q = (int)(rc->avg_q > 48.0);
int qi_delta;
// Disable and clear down for KF
if (cm->frame_type == KEY_FRAME) {
// Clear down the global segmentation map
memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
seg->update_map = 0;
seg->update_data = 0;
cpi->static_mb_pct = 0;
// Disable segmentation
av1_disable_segmentation(seg);
// Clear down the segment features.
av1_clearall_segfeatures(seg);
} else if (cpi->refresh_alt_ref_frame) {
// If this is an alt ref frame
// Clear down the global segmentation map
memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
seg->update_map = 0;
seg->update_data = 0;
cpi->static_mb_pct = 0;
// Disable segmentation and individual segment features by default
av1_disable_segmentation(seg);
av1_clearall_segfeatures(seg);
// Scan frames from current to arf frame.
// This function re-enables segmentation if appropriate.
av1_update_mbgraph_stats(cpi);
// If segmentation was enabled set those features needed for the
// arf itself.
if (seg->enabled) {
seg->update_map = 1;
seg->update_data = 1;
qi_delta = av1_compute_qdelta(rc, rc->avg_q, rc->avg_q * 0.875,
cm->seq_params.bit_depth);
av1_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta - 2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_H, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_V, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_U, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_V, -2);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_H);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_V);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_U);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_V);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
}
} else if (seg->enabled) {
// All other frames if segmentation has been enabled
// First normal frame in a valid gf or alt ref group
if (rc->frames_since_golden == 0) {
// Set up segment features for normal frames in an arf group
if (rc->source_alt_ref_active) {
seg->update_map = 0;
seg->update_data = 1;
qi_delta = av1_compute_qdelta(rc, rc->avg_q, rc->avg_q * 1.125,
cm->seq_params.bit_depth);
av1_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta + 2);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_H, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_V, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_U, -2);
av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_V, -2);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_H);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_V);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_U);
av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_V);
// Segment coding disabled for compred testing
if (high_q || (cpi->static_mb_pct == 100)) {
av1_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
av1_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
av1_enable_segfeature(seg, 1, SEG_LVL_SKIP);
}
} else {
// Disable segmentation and clear down features if alt ref
// is not active for this group
av1_disable_segmentation(seg);
memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
seg->update_map = 0;
seg->update_data = 0;
av1_clearall_segfeatures(seg);
}
} else if (rc->is_src_frame_alt_ref) {
// Special case where we are coding over the top of a previous
// alt ref frame.
// Segment coding disabled for compred testing
// Enable ref frame features for segment 0 as well
av1_enable_segfeature(seg, 0, SEG_LVL_REF_FRAME);
av1_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
// All mbs should use ALTREF_FRAME
av1_clear_segdata(seg, 0, SEG_LVL_REF_FRAME);
av1_set_segdata(seg, 0, SEG_LVL_REF_FRAME, ALTREF_FRAME);
av1_clear_segdata(seg, 1, SEG_LVL_REF_FRAME);
av1_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
// Skip all MBs if high Q (0,0 mv and skip coeffs)
if (high_q) {
av1_enable_segfeature(seg, 0, SEG_LVL_SKIP);
av1_enable_segfeature(seg, 1, SEG_LVL_SKIP);
}
// Enable data update
seg->update_data = 1;
} else {
// All other frames.
// No updates.. leave things as they are.
seg->update_map = 0;
seg->update_data = 0;
}
}
}
static void update_reference_segmentation_map(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
MB_MODE_INFO **mi_4x4_ptr = cm->mi_grid_visible;
uint8_t *cache_ptr = cm->current_frame_seg_map;
int row, col;
for (row = 0; row < cm->mi_rows; row++) {
MB_MODE_INFO **mi_4x4 = mi_4x4_ptr;
uint8_t *cache = cache_ptr;
for (col = 0; col < cm->mi_cols; col++, mi_4x4++, cache++)
cache[0] = mi_4x4[0]->segment_id;
mi_4x4_ptr += cm->mi_stride;
cache_ptr += cm->mi_cols;
}
}
static void alloc_raw_frame_buffers(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
const SequenceHeader *const seq_params = &cm->seq_params;
const AV1EncoderConfig *oxcf = &cpi->oxcf;
if (!cpi->lookahead)
cpi->lookahead =
av1_lookahead_init(oxcf->width, oxcf->height, seq_params->subsampling_x,
seq_params->subsampling_y,
seq_params->use_highbitdepth, oxcf->lag_in_frames);
if (!cpi->lookahead)
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate lag buffers");
// TODO(agrange) Check if ARF is enabled and skip allocation if not.
if (aom_realloc_frame_buffer(
&cpi->alt_ref_buffer, oxcf->width, oxcf->height,
seq_params->subsampling_x, seq_params->subsampling_y,
seq_params->use_highbitdepth, AOM_BORDER_IN_PIXELS,
cm->byte_alignment, NULL, NULL, NULL))
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate altref buffer");
}
static void alloc_util_frame_buffers(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
const SequenceHeader *const seq_params = &cm->seq_params;
if (aom_realloc_frame_buffer(
&cpi->last_frame_uf, cm->width, cm->height, seq_params->subsampling_x,
seq_params->subsampling_y, seq_params->use_highbitdepth,
AOM_BORDER_IN_PIXELS, cm->byte_alignment, NULL, NULL, NULL))
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate last frame buffer");
if (aom_realloc_frame_buffer(
&cpi->trial_frame_rst, cm->superres_upscaled_width,
cm->superres_upscaled_height, seq_params->subsampling_x,
seq_params->subsampling_y, seq_params->use_highbitdepth,
AOM_BORDER_IN_PIXELS, cm->byte_alignment, NULL, NULL, NULL))
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate trial restored frame buffer");
if (aom_realloc_frame_buffer(
&cpi->scaled_source, cm->width, cm->height, seq_params->subsampling_x,
seq_params->subsampling_y, seq_params->use_highbitdepth,
AOM_BORDER_IN_PIXELS, cm->byte_alignment, NULL, NULL, NULL))
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate scaled source buffer");
if (aom_realloc_frame_buffer(
&cpi->scaled_last_source, cm->width, cm->height,
seq_params->subsampling_x, seq_params->subsampling_y,
seq_params->use_highbitdepth, AOM_BORDER_IN_PIXELS,
cm->byte_alignment, NULL, NULL, NULL))
aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
"Failed to allocate scaled last source buffer");
}
static void alloc_compressor_data(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
const int num_planes = av1_num_planes(cm);
av1_alloc_context_buffers(cm, cm->width, cm->height);
int mi_rows_aligned_to_sb =
ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2);
int sb_rows = mi_rows_aligned_to_sb >> cm->seq_params.mib_size_log2;
av1_alloc_txb_buf(cpi);
alloc_context_buffers_ext(cpi);
aom_free(cpi->tile_tok[0][0]);
{
unsigned int tokens =
get_token_alloc(cm->mb_rows, cm->mb_cols, MAX_SB_SIZE_LOG2, num_planes);
CHECK_MEM_ERROR(cm, cpi->tile_tok[0][0],
aom_calloc(tokens, sizeof(*cpi->tile_tok[0][0])));
}
aom_free(cpi->tplist[0][0]);
CHECK_MEM_ERROR(cm, cpi->tplist[0][0],
aom_calloc(sb_rows * MAX_TILE_ROWS * MAX_TILE_COLS,
sizeof(*cpi->tplist[0][0])));
av1_setup_pc_tree(&cpi->common, &cpi->td);
}
void av1_new_framerate(AV1_COMP *cpi, double framerate) {
cpi->framerate = framerate < 0.1 ? 30 : framerate;
av1_rc_update_framerate(cpi, cpi->common.width, cpi->common.height);
}
static void set_tile_info(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
int i, start_sb;
av1_get_tile_limits(cm);
// configure tile columns
if (cpi->oxcf.tile_width_count == 0 || cpi->oxcf.tile_height_count == 0) {
cm->uniform_tile_spacing_flag = 1;
cm->log2_tile_cols = AOMMAX(cpi->oxcf.tile_columns, cm->min_log2_tile_cols);
cm->log2_tile_cols = AOMMIN(cm->log2_tile_cols, cm->max_log2_tile_cols);
} else {
int mi_cols = ALIGN_POWER_OF_TWO(cm->mi_cols, cm->seq_params.mib_size_log2);
int sb_cols = mi_cols >> cm->seq_params.mib_size_log2;
int size_sb, j = 0;
cm->uniform_tile_spacing_flag = 0;
for (i = 0, start_sb = 0; start_sb < sb_cols && i < MAX_TILE_COLS; i++) {
cm->tile_col_start_sb[i] = start_sb;
size_sb = cpi->oxcf.tile_widths[j++];
if (j >= cpi->oxcf.tile_width_count) j = 0;
start_sb += AOMMIN(size_sb, cm->max_tile_width_sb);
}
cm->tile_cols = i;
cm->tile_col_start_sb[i] = sb_cols;
}
av1_calculate_tile_cols(cm);
// configure tile rows
if (cm->uniform_tile_spacing_flag) {
cm->log2_tile_rows = AOMMAX(cpi->oxcf.tile_rows, cm->min_log2_tile_rows);
cm->log2_tile_rows = AOMMIN(cm->log2_tile_rows, cm->max_log2_tile_rows);
} else {
int mi_rows = ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2);
int sb_rows = mi_rows >> cm->seq_params.mib_size_log2;
int size_sb, j = 0;
for (i = 0, start_sb = 0; start_sb < sb_rows && i < MAX_TILE_ROWS; i++) {
cm->tile_row_start_sb[i] = start_sb;
size_sb = cpi->oxcf.tile_heights[j++];
if (j >= cpi->oxcf.tile_height_count) j = 0;
start_sb += AOMMIN(size_sb, cm->max_tile_height_sb);
}
cm->tile_rows = i;
cm->tile_row_start_sb[i] = sb_rows;
}
av1_calculate_tile_rows(cm);
}
static void update_frame_size(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
av1_set_mb_mi(cm, cm->width, cm->height);
av1_init_context_buffers(cm);
av1_init_macroblockd(cm, xd, NULL);
memset(cpi->mbmi_ext_base, 0,
cm->mi_rows * cm->mi_cols * sizeof(*cpi->mbmi_ext_base));
set_tile_info(cpi);
}
static void init_buffer_indices(AV1_COMP *cpi) {
int fb_idx;
for (fb_idx = 0; fb_idx < REF_FRAMES; ++fb_idx)
cpi->ref_fb_idx[fb_idx] = fb_idx;
cpi->rate_index = 0;
cpi->rate_size = 0;
cpi->cur_poc = -1;
}
static INLINE int does_level_match(int width, int height, double fps,
int lvl_width, int lvl_height,
double lvl_fps, int lvl_dim_mult) {
const int64_t lvl_luma_pels = lvl_width * lvl_height;
const double lvl_display_sample_rate = lvl_luma_pels * lvl_fps;
const int64_t luma_pels = width * height;
const double display_sample_rate = luma_pels * fps;
return luma_pels <= lvl_luma_pels &&
display_sample_rate <= lvl_display_sample_rate &&
width <= lvl_width * lvl_dim_mult &&
height <= lvl_height * lvl_dim_mult;
}
static void set_bitstream_level_tier(SequenceHeader *seq, AV1_COMMON *cm,
const AV1EncoderConfig *oxcf) {
// TODO(any): This is a placeholder function that only addresses dimensions
// and max display sample rates.
// Need to add checks for max bit rate, max decoded luma sample rate, header
// rate, etc. that are not covered by this function.
(void)oxcf;
BitstreamLevel bl = { 9, 3 };
if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate, 512,
288, 30.0, 4)) {
bl.major = 2;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
704, 396, 30.0, 4)) {
bl.major = 2;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
1088, 612, 30.0, 4)) {
bl.major = 3;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
1376, 774, 30.0, 4)) {
bl.major = 3;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
2048, 1152, 30.0, 3)) {
bl.major = 4;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
2048, 1152, 60.0, 3)) {
bl.major = 4;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
4096, 2176, 30.0, 2)) {
bl.major = 5;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
4096, 2176, 60.0, 2)) {
bl.major = 5;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
4096, 2176, 120.0, 2)) {
bl.major = 5;
bl.minor = 2;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
8192, 4352, 30.0, 2)) {
bl.major = 6;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
8192, 4352, 60.0, 2)) {
bl.major = 6;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
8192, 4352, 120.0, 2)) {
bl.major = 6;
bl.minor = 2;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
16384, 8704, 30.0, 2)) {
bl.major = 7;
bl.minor = 0;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
16384, 8704, 60.0, 2)) {
bl.major = 7;
bl.minor = 1;
} else if (does_level_match(oxcf->width, oxcf->height, oxcf->init_framerate,
16384, 8704, 120.0, 2)) {
bl.major = 7;
bl.minor = 2;
}
for (int i = 0; i < MAX_NUM_OPERATING_POINTS; ++i) {
seq->level[i] = bl;
seq->tier[i] = 0; // setting main tier by default
// Set the maximum parameters for bitrate and buffer size for this profile,
// level, and tier
cm->op_params[i].bitrate = max_level_bitrate(
cm->seq_params.profile, major_minor_to_seq_level_idx(seq->level[i]),
seq->tier[i]);
// Level with seq_level_idx = 31 returns a high "dummy" bitrate to pass the
// check
if (cm->op_params[i].bitrate == 0)
aom_internal_error(
&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
"AV1 does not support this combination of profile, level, and tier.");
// Buffer size in bits/s is bitrate in bits/s * 1 s
cm->op_params[i].buffer_size = cm->op_params[i].bitrate;
}
}
static void init_seq_coding_tools(SequenceHeader *seq, AV1_COMMON *cm,
const AV1EncoderConfig *oxcf) {
seq->still_picture = (oxcf->limit == 1);
seq->reduced_still_picture_hdr = seq->still_picture;
seq->reduced_still_picture_hdr &= !oxcf->full_still_picture_hdr;
seq->force_screen_content_tools = 2;