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aomedia / aom / 6f6f12aa7a48cae9c24848860c849b16dfd61c52 / . / av1 / encoder / firstpass.c
blob: 5271dc520e1d6e9d7cdc1342af68f0bf44f2aff4 [file] [log] [blame]
/*
* 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_dsp_rtcd.h"
#include "config/aom_scale_rtcd.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/variance.h"
#include "aom_mem/aom_mem.h"
#include "aom_ports/mem.h"
#include "aom_scale/aom_scale.h"
#include "aom_scale/yv12config.h"
#include "av1/common/entropymv.h"
#include "av1/common/quant_common.h"
#include "av1/common/reconinter.h" // av1_setup_dst_planes()
#include "av1/common/reconintra.h"
#include "av1/common/txb_common.h"
#include "av1/encoder/aq_variance.h"
#include "av1/encoder/av1_quantize.h"
#include "av1/encoder/block.h"
#include "av1/encoder/dwt.h"
#include "av1/encoder/encodeframe.h"
#include "av1/encoder/encodemb.h"
#include "av1/encoder/encodemv.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/encode_strategy.h"
#include "av1/encoder/ethread.h"
#include "av1/encoder/extend.h"
#include "av1/encoder/firstpass.h"
#include "av1/encoder/mcomp.h"
#include "av1/encoder/rd.h"
#include "av1/encoder/reconinter_enc.h"
#define OUTPUT_FPF 0
#define FIRST_PASS_Q 10.0
#define INTRA_MODE_PENALTY 1024
#define NEW_MV_MODE_PENALTY 32
#define DARK_THRESH 64
#define NCOUNT_INTRA_THRESH 8192
#define NCOUNT_INTRA_FACTOR 3
#define INVALID_FP_STATS_TO_PREDICT_FLAT_GOP -1
static AOM_INLINE void output_stats(FIRSTPASS_STATS *stats,
struct aom_codec_pkt_list *pktlist) {
struct aom_codec_cx_pkt pkt;
pkt.kind = AOM_CODEC_STATS_PKT;
pkt.data.twopass_stats.buf = stats;
pkt.data.twopass_stats.sz = sizeof(FIRSTPASS_STATS);
if (pktlist != NULL) aom_codec_pkt_list_add(pktlist, &pkt);
// TEMP debug code
#if OUTPUT_FPF
{
FILE *fpfile;
fpfile = fopen("firstpass.stt", "a");
fprintf(fpfile,
"%12.0lf %12.4lf %12.0lf %12.0lf %12.0lf %12.4lf %12.4lf"
"%12.4lf %12.4lf %12.4lf %12.4lf %12.4lf %12.4lf %12.4lf %12.4lf"
"%12.4lf %12.4lf %12.0lf %12.0lf %12.0lf %12.4lf %12.4lf\n",
stats->frame, stats->weight, stats->intra_error, stats->coded_error,
stats->sr_coded_error, stats->pcnt_inter, stats->pcnt_motion,
stats->pcnt_second_ref, stats->pcnt_neutral, stats->intra_skip_pct,
stats->inactive_zone_rows, stats->inactive_zone_cols, stats->MVr,
stats->mvr_abs, stats->MVc, stats->mvc_abs, stats->MVrv,
stats->MVcv, stats->mv_in_out_count, stats->new_mv_count,
stats->count, stats->duration);
fclose(fpfile);
}
#endif
}
void av1_twopass_zero_stats(FIRSTPASS_STATS *section) {
section->frame = 0.0;
section->weight = 0.0;
section->intra_error = 0.0;
section->frame_avg_wavelet_energy = 0.0;
section->coded_error = 0.0;
section->sr_coded_error = 0.0;
section->pcnt_inter = 0.0;
section->pcnt_motion = 0.0;
section->pcnt_second_ref = 0.0;
section->pcnt_neutral = 0.0;
section->intra_skip_pct = 0.0;
section->inactive_zone_rows = 0.0;
section->inactive_zone_cols = 0.0;
section->MVr = 0.0;
section->mvr_abs = 0.0;
section->MVc = 0.0;
section->mvc_abs = 0.0;
section->MVrv = 0.0;
section->MVcv = 0.0;
section->mv_in_out_count = 0.0;
section->new_mv_count = 0.0;
section->count = 0.0;
section->duration = 1.0;
section->is_flash = 0;
section->noise_var = 0;
section->cor_coeff = 1.0;
}
void av1_accumulate_stats(FIRSTPASS_STATS *section,
const FIRSTPASS_STATS *frame) {
section->frame += frame->frame;
section->weight += frame->weight;
section->intra_error += frame->intra_error;
section->frame_avg_wavelet_energy += frame->frame_avg_wavelet_energy;
section->coded_error += frame->coded_error;
section->sr_coded_error += frame->sr_coded_error;
section->pcnt_inter += frame->pcnt_inter;
section->pcnt_motion += frame->pcnt_motion;
section->pcnt_second_ref += frame->pcnt_second_ref;
section->pcnt_neutral += frame->pcnt_neutral;
section->intra_skip_pct += frame->intra_skip_pct;
section->inactive_zone_rows += frame->inactive_zone_rows;
section->inactive_zone_cols += frame->inactive_zone_cols;
section->MVr += frame->MVr;
section->mvr_abs += frame->mvr_abs;
section->MVc += frame->MVc;
section->mvc_abs += frame->mvc_abs;
section->MVrv += frame->MVrv;
section->MVcv += frame->MVcv;
section->mv_in_out_count += frame->mv_in_out_count;
section->new_mv_count += frame->new_mv_count;
section->count += frame->count;
section->duration += frame->duration;
}
static int get_unit_rows(const BLOCK_SIZE fp_block_size, const int mb_rows) {
const int height_mi_log2 = mi_size_high_log2[fp_block_size];
const int mb_height_mi_log2 = mi_size_high_log2[BLOCK_16X16];
if (height_mi_log2 > mb_height_mi_log2) {
return mb_rows >> (height_mi_log2 - mb_height_mi_log2);
}
return mb_rows << (mb_height_mi_log2 - height_mi_log2);
}
static int get_unit_cols(const BLOCK_SIZE fp_block_size, const int mb_cols) {
const int width_mi_log2 = mi_size_wide_log2[fp_block_size];
const int mb_width_mi_log2 = mi_size_wide_log2[BLOCK_16X16];
if (width_mi_log2 > mb_width_mi_log2) {
return mb_cols >> (width_mi_log2 - mb_width_mi_log2);
}
return mb_cols << (mb_width_mi_log2 - width_mi_log2);
}
// TODO(chengchen): can we simplify it even if resize has to be considered?
static int get_num_mbs(const BLOCK_SIZE fp_block_size,
const int num_mbs_16X16) {
const int width_mi_log2 = mi_size_wide_log2[fp_block_size];
const int height_mi_log2 = mi_size_high_log2[fp_block_size];
const int mb_width_mi_log2 = mi_size_wide_log2[BLOCK_16X16];
const int mb_height_mi_log2 = mi_size_high_log2[BLOCK_16X16];
// TODO(chengchen): Now this function assumes a square block is used.
// It does not support rectangular block sizes.
assert(width_mi_log2 == height_mi_log2);
if (width_mi_log2 > mb_width_mi_log2) {
return num_mbs_16X16 >> ((width_mi_log2 - mb_width_mi_log2) +
(height_mi_log2 - mb_height_mi_log2));
}
return num_mbs_16X16 << ((mb_width_mi_log2 - width_mi_log2) +
(mb_height_mi_log2 - height_mi_log2));
}
void av1_end_first_pass(AV1_COMP *cpi) {
if (cpi->ppi->twopass.stats_buf_ctx->total_stats && !cpi->ppi->lap_enabled)
output_stats(cpi->ppi->twopass.stats_buf_ctx->total_stats,
cpi->ppi->output_pkt_list);
}
static aom_variance_fn_t get_block_variance_fn(BLOCK_SIZE bsize) {
switch (bsize) {
case BLOCK_8X8: return aom_mse8x8;
case BLOCK_16X8: return aom_mse16x8;
case BLOCK_8X16: return aom_mse8x16;
default: return aom_mse16x16;
}
}
static unsigned int get_prediction_error(BLOCK_SIZE bsize,
const struct buf_2d *src,
const struct buf_2d *ref) {
unsigned int sse;
const aom_variance_fn_t fn = get_block_variance_fn(bsize);
fn(src->buf, src->stride, ref->buf, ref->stride, &sse);
return sse;
}
#if CONFIG_AV1_HIGHBITDEPTH
static aom_variance_fn_t highbd_get_block_variance_fn(BLOCK_SIZE bsize,
int bd) {
switch (bd) {
default:
switch (bsize) {
case BLOCK_8X8: return aom_highbd_8_mse8x8;
case BLOCK_16X8: return aom_highbd_8_mse16x8;
case BLOCK_8X16: return aom_highbd_8_mse8x16;
default: return aom_highbd_8_mse16x16;
}
break;
case 10:
switch (bsize) {
case BLOCK_8X8: return aom_highbd_10_mse8x8;
case BLOCK_16X8: return aom_highbd_10_mse16x8;
case BLOCK_8X16: return aom_highbd_10_mse8x16;
default: return aom_highbd_10_mse16x16;
}
break;
case 12:
switch (bsize) {
case BLOCK_8X8: return aom_highbd_12_mse8x8;
case BLOCK_16X8: return aom_highbd_12_mse16x8;
case BLOCK_8X16: return aom_highbd_12_mse8x16;
default: return aom_highbd_12_mse16x16;
}
break;
}
}
static unsigned int highbd_get_prediction_error(BLOCK_SIZE bsize,
const struct buf_2d *src,
const struct buf_2d *ref,
int bd) {
unsigned int sse;
const aom_variance_fn_t fn = highbd_get_block_variance_fn(bsize, bd);
fn(src->buf, src->stride, ref->buf, ref->stride, &sse);
return sse;
}
#endif // CONFIG_AV1_HIGHBITDEPTH
// Refine the motion search range according to the frame dimension
// for first pass test.
static int get_search_range(const InitialDimensions *initial_dimensions) {
int sr = 0;
const int dim = AOMMIN(initial_dimensions->width, initial_dimensions->height);
while ((dim << sr) < MAX_FULL_PEL_VAL) ++sr;
return sr;
}
static AOM_INLINE void first_pass_motion_search(AV1_COMP *cpi, MACROBLOCK *x,
const MV *ref_mv,
FULLPEL_MV *best_mv,
int *best_motion_err) {
MACROBLOCKD *const xd = &x->e_mbd;
FULLPEL_MV start_mv = get_fullmv_from_mv(ref_mv);
int tmp_err;
const BLOCK_SIZE bsize = xd->mi[0]->bsize;
const int new_mv_mode_penalty = NEW_MV_MODE_PENALTY;
const int sr = get_search_range(&cpi->initial_dimensions);
const int step_param = cpi->sf.fp_sf.reduce_mv_step_param + sr;
const search_site_config *first_pass_search_sites =
cpi->mv_search_params.search_site_cfg[SS_CFG_FPF];
const int fine_search_interval =
cpi->is_screen_content_type && cpi->common.features.allow_intrabc;
FULLPEL_MOTION_SEARCH_PARAMS ms_params;
av1_make_default_fullpel_ms_params(&ms_params, cpi, x, bsize, ref_mv,
first_pass_search_sites,
fine_search_interval);
av1_set_mv_search_method(&ms_params, first_pass_search_sites, NSTEP);
FULLPEL_MV this_best_mv;
tmp_err = av1_full_pixel_search(start_mv, &ms_params, step_param, NULL,
&this_best_mv, NULL);
if (tmp_err < INT_MAX) {
aom_variance_fn_ptr_t v_fn_ptr = cpi->ppi->fn_ptr[bsize];
const MSBuffers *ms_buffers = &ms_params.ms_buffers;
tmp_err = av1_get_mvpred_sse(&ms_params.mv_cost_params, this_best_mv,
&v_fn_ptr, ms_buffers->src, ms_buffers->ref) +
new_mv_mode_penalty;
}
if (tmp_err < *best_motion_err) {
*best_motion_err = tmp_err;
*best_mv = this_best_mv;
}
}
static BLOCK_SIZE get_bsize(const CommonModeInfoParams *const mi_params,
const BLOCK_SIZE fp_block_size, const int unit_row,
const int unit_col) {
const int unit_width = mi_size_wide[fp_block_size];
const int unit_height = mi_size_high[fp_block_size];
const int is_half_width =
unit_width * unit_col + unit_width / 2 >= mi_params->mi_cols;
const int is_half_height =
unit_height * unit_row + unit_height / 2 >= mi_params->mi_rows;
const int max_dimension =
AOMMAX(block_size_wide[fp_block_size], block_size_high[fp_block_size]);
int square_block_size = 0;
// 4X4, 8X8, 16X16, 32X32, 64X64, 128X128
switch (max_dimension) {
case 4: square_block_size = 0; break;
case 8: square_block_size = 1; break;
case 16: square_block_size = 2; break;
case 32: square_block_size = 3; break;
case 64: square_block_size = 4; break;
case 128: square_block_size = 5; break;
default: assert(0 && "First pass block size is not supported!"); break;
}
if (is_half_width && is_half_height) {
return subsize_lookup[PARTITION_SPLIT][square_block_size];
} else if (is_half_width) {
return subsize_lookup[PARTITION_VERT][square_block_size];
} else if (is_half_height) {
return subsize_lookup[PARTITION_HORZ][square_block_size];
} else {
return fp_block_size;
}
}
static int find_fp_qindex(aom_bit_depth_t bit_depth) {
return av1_find_qindex(FIRST_PASS_Q, bit_depth, 0, QINDEX_RANGE - 1);
}
static double raw_motion_error_stdev(int *raw_motion_err_list,
int raw_motion_err_counts) {
int64_t sum_raw_err = 0;
double raw_err_avg = 0;
double raw_err_stdev = 0;
if (raw_motion_err_counts == 0) return 0;
int i;
for (i = 0; i < raw_motion_err_counts; i++) {
sum_raw_err += raw_motion_err_list[i];
}
raw_err_avg = (double)sum_raw_err / raw_motion_err_counts;
for (i = 0; i < raw_motion_err_counts; i++) {
raw_err_stdev += (raw_motion_err_list[i] - raw_err_avg) *
(raw_motion_err_list[i] - raw_err_avg);
}
// Calculate the standard deviation for the motion error of all the inter
// blocks of the 0,0 motion using the last source
// frame as the reference.
raw_err_stdev = sqrt(raw_err_stdev / raw_motion_err_counts);
return raw_err_stdev;
}
static AOM_INLINE int calc_wavelet_energy(const AV1EncoderConfig *oxcf) {
return oxcf->q_cfg.deltaq_mode == DELTA_Q_PERCEPTUAL;
}
typedef struct intra_pred_block_pass1_args {
const SequenceHeader *seq_params;
MACROBLOCK *x;
} intra_pred_block_pass1_args;
static INLINE void copy_rect(uint8_t *dst, int dstride, const uint8_t *src,
int sstride, int width, int height, int use_hbd) {
#if CONFIG_AV1_HIGHBITDEPTH
if (use_hbd) {
aom_highbd_convolve_copy(CONVERT_TO_SHORTPTR(src), sstride,
CONVERT_TO_SHORTPTR(dst), dstride, width, height);
} else {
aom_convolve_copy(src, sstride, dst, dstride, width, height);
}
#else
(void)use_hbd;
aom_convolve_copy(src, sstride, dst, dstride, width, height);
#endif
}
static void first_pass_intra_pred_and_calc_diff(int plane, int block,
int blk_row, int blk_col,
BLOCK_SIZE plane_bsize,
TX_SIZE tx_size, void *arg) {
(void)block;
struct intra_pred_block_pass1_args *const args = arg;
MACROBLOCK *const x = args->x;
MACROBLOCKD *const xd = &x->e_mbd;
MACROBLOCKD_PLANE *const pd = &xd->plane[plane];
MACROBLOCK_PLANE *const p = &x->plane[plane];
const int dst_stride = pd->dst.stride;
uint8_t *dst = &pd->dst.buf[(blk_row * dst_stride + blk_col) << MI_SIZE_LOG2];
const MB_MODE_INFO *const mbmi = xd->mi[0];
const SequenceHeader *seq_params = args->seq_params;
const int src_stride = p->src.stride;
uint8_t *src = &p->src.buf[(blk_row * src_stride + blk_col) << MI_SIZE_LOG2];
av1_predict_intra_block(
xd, seq_params->sb_size, seq_params->enable_intra_edge_filter, pd->width,
pd->height, tx_size, mbmi->mode, 0, 0, FILTER_INTRA_MODES, src,
src_stride, dst, dst_stride, blk_col, blk_row, plane);
av1_subtract_txb(x, plane, plane_bsize, blk_col, blk_row, tx_size);
}
static void first_pass_predict_intra_block_for_luma_plane(
const SequenceHeader *seq_params, MACROBLOCK *x, BLOCK_SIZE bsize) {
assert(bsize < BLOCK_SIZES_ALL);
const MACROBLOCKD *const xd = &x->e_mbd;
const int plane = AOM_PLANE_Y;
const MACROBLOCKD_PLANE *const pd = &xd->plane[plane];
const int ss_x = pd->subsampling_x;
const int ss_y = pd->subsampling_y;
const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, ss_x, ss_y);
const int dst_stride = pd->dst.stride;
uint8_t *dst = pd->dst.buf;
const MACROBLOCK_PLANE *const p = &x->plane[plane];
const int src_stride = p->src.stride;
const uint8_t *src = p->src.buf;
intra_pred_block_pass1_args args = { seq_params, x };
av1_foreach_transformed_block_in_plane(
xd, plane_bsize, plane, first_pass_intra_pred_and_calc_diff, &args);
// copy source data to recon buffer, as the recon buffer will be used as a
// reference frame subsequently.
copy_rect(dst, dst_stride, src, src_stride, block_size_wide[bsize],
block_size_high[bsize], seq_params->use_highbitdepth);
}
#define UL_INTRA_THRESH 50
#define INVALID_ROW -1
// Computes and returns the intra pred error of a block.
// intra pred error: sum of squared error of the intra predicted residual.
// Inputs:
// cpi: the encoder setting. Only a few params in it will be used.
// this_frame: the current frame buffer.
// tile: tile information (not used in first pass, already init to zero)
// unit_row: row index in the unit of first pass block size.
// unit_col: column index in the unit of first pass block size.
// y_offset: the offset of y frame buffer, indicating the starting point of
// the current block.
// uv_offset: the offset of u and v frame buffer, indicating the starting
// point of the current block.
// fp_block_size: first pass block size.
// qindex: quantization step size to encode the frame.
// stats: frame encoding stats.
// Modifies:
// stats->intra_skip_count
// stats->image_data_start_row
// stats->intra_factor
// stats->brightness_factor
// stats->intra_error
// stats->frame_avg_wavelet_energy
// Returns:
// this_intra_error.
static int firstpass_intra_prediction(
AV1_COMP *cpi, ThreadData *td, YV12_BUFFER_CONFIG *const this_frame,
const TileInfo *const tile, const int unit_row, const int unit_col,
const int y_offset, const int uv_offset, const BLOCK_SIZE fp_block_size,
const int qindex, FRAME_STATS *const stats) {
const AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;
const SequenceHeader *const seq_params = cm->seq_params;
MACROBLOCK *const x = &td->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int unit_scale = mi_size_wide[fp_block_size];
const int num_planes = av1_num_planes(cm);
const BLOCK_SIZE bsize =
get_bsize(mi_params, fp_block_size, unit_row, unit_col);
set_mi_offsets(mi_params, xd, unit_row * unit_scale, unit_col * unit_scale);
xd->plane[0].dst.buf = this_frame->y_buffer + y_offset;
xd->plane[1].dst.buf = this_frame->u_buffer + uv_offset;
xd->plane[2].dst.buf = this_frame->v_buffer + uv_offset;
xd->left_available = (unit_col != 0);
xd->mi[0]->bsize = bsize;
xd->mi[0]->ref_frame[0] = INTRA_FRAME;
set_mi_row_col(xd, tile, unit_row * unit_scale, mi_size_high[bsize],
unit_col * unit_scale, mi_size_wide[bsize], mi_params->mi_rows,
mi_params->mi_cols);
set_plane_n4(xd, mi_size_wide[bsize], mi_size_high[bsize], num_planes);
xd->mi[0]->segment_id = 0;
xd->lossless[xd->mi[0]->segment_id] = (qindex == 0);
xd->mi[0]->mode = DC_PRED;
xd->mi[0]->tx_size = TX_4X4;
if (cpi->sf.fp_sf.disable_recon)
first_pass_predict_intra_block_for_luma_plane(seq_params, x, bsize);
else
av1_encode_intra_block_plane(cpi, x, bsize, 0, DRY_RUN_NORMAL, 0);
int this_intra_error = aom_get_mb_ss(x->plane[0].src_diff);
if (seq_params->use_highbitdepth) {
switch (seq_params->bit_depth) {
case AOM_BITS_8: break;
case AOM_BITS_10: this_intra_error >>= 4; break;
case AOM_BITS_12: this_intra_error >>= 8; break;
default:
assert(0 &&
"seq_params->bit_depth should be AOM_BITS_8, "
"AOM_BITS_10 or AOM_BITS_12");
return -1;
}
}
if (this_intra_error < UL_INTRA_THRESH) {
++stats->intra_skip_count;
} else if ((unit_col > 0) && (stats->image_data_start_row == INVALID_ROW)) {
stats->image_data_start_row = unit_row;
}
double log_intra = log(this_intra_error + 1.0);
if (log_intra < 10.0) {
stats->intra_factor += 1.0 + ((10.0 - log_intra) * 0.05);
} else {
stats->intra_factor += 1.0;
}
int level_sample;
if (seq_params->use_highbitdepth) {
level_sample = CONVERT_TO_SHORTPTR(x->plane[0].src.buf)[0];
} else {
level_sample = x->plane[0].src.buf[0];
}
if (seq_params->use_highbitdepth) {
switch (seq_params->bit_depth) {
case AOM_BITS_8: break;
case AOM_BITS_10: level_sample >>= 2; break;
case AOM_BITS_12: level_sample >>= 4; break;
default:
assert(0 &&
"seq_params->bit_depth should be AOM_BITS_8, "
"AOM_BITS_10 or AOM_BITS_12");
return -1;
}
}
if ((level_sample < DARK_THRESH) && (log_intra < 9.0)) {
stats->brightness_factor += 1.0 + (0.01 * (DARK_THRESH - level_sample));
} else {
stats->brightness_factor += 1.0;
}
// Intrapenalty below deals with situations where the intra and inter
// error scores are very low (e.g. a plain black frame).
// We do not have special cases in first pass for 0,0 and nearest etc so
// all inter modes carry an overhead cost estimate for the mv.
// When the error score is very low this causes us to pick all or lots of
// INTRA modes and throw lots of key frames.
// This penalty adds a cost matching that of a 0,0 mv to the intra case.
this_intra_error += INTRA_MODE_PENALTY;
// Accumulate the intra error.
stats->intra_error += (int64_t)this_intra_error;
// Stats based on wavelet energy is used in the following cases :
// 1. ML model which predicts if a flat structure (golden-frame only structure
// without ALT-REF and Internal-ARFs) is better. This ML model is enabled in
// constant quality mode under certain conditions.
// 2. Delta qindex mode is set as DELTA_Q_PERCEPTUAL.
// Thus, wavelet energy calculation is enabled for the above cases.
if (calc_wavelet_energy(&cpi->oxcf)) {
const int hbd = is_cur_buf_hbd(xd);
const int stride = x->plane[0].src.stride;
const int num_8x8_rows = block_size_high[fp_block_size] / 8;
const int num_8x8_cols = block_size_wide[fp_block_size] / 8;
const uint8_t *buf = x->plane[0].src.buf;
stats->frame_avg_wavelet_energy += av1_haar_ac_sad_mxn_uint8_input(
buf, stride, hbd, num_8x8_rows, num_8x8_cols);
} else {
stats->frame_avg_wavelet_energy = INVALID_FP_STATS_TO_PREDICT_FLAT_GOP;
}
return this_intra_error;
}
// Returns the sum of square error between source and reference blocks.
static int get_prediction_error_bitdepth(const int is_high_bitdepth,
const int bitdepth,
const BLOCK_SIZE block_size,
const struct buf_2d *src,
const struct buf_2d *ref) {
(void)is_high_bitdepth;
(void)bitdepth;
#if CONFIG_AV1_HIGHBITDEPTH
if (is_high_bitdepth) {
return highbd_get_prediction_error(block_size, src, ref, bitdepth);
}
#endif // CONFIG_AV1_HIGHBITDEPTH
return get_prediction_error(block_size, src, ref);
}
// Accumulates motion vector stats.
// Modifies member variables of "stats".
static void accumulate_mv_stats(const MV best_mv, const FULLPEL_MV mv,
const int mb_row, const int mb_col,
const int mb_rows, const int mb_cols,
MV *last_non_zero_mv, FRAME_STATS *stats) {
if (is_zero_mv(&best_mv)) return;
++stats->mv_count;
// Non-zero vector, was it different from the last non zero vector?
if (!is_equal_mv(&best_mv, last_non_zero_mv)) ++stats->new_mv_count;
*last_non_zero_mv = best_mv;
// Does the row vector point inwards or outwards?
if (mb_row < mb_rows / 2) {
if (mv.row > 0) {
--stats->sum_in_vectors;
} else if (mv.row < 0) {
++stats->sum_in_vectors;
}
} else if (mb_row > mb_rows / 2) {
if (mv.row > 0) {
++stats->sum_in_vectors;
} else if (mv.row < 0) {
--stats->sum_in_vectors;
}
}
// Does the col vector point inwards or outwards?
if (mb_col < mb_cols / 2) {
if (mv.col > 0) {
--stats->sum_in_vectors;
} else if (mv.col < 0) {
++stats->sum_in_vectors;
}
} else if (mb_col > mb_cols / 2) {
if (mv.col > 0) {
++stats->sum_in_vectors;
} else if (mv.col < 0) {
--stats->sum_in_vectors;
}
}
}
// Computes and returns the inter prediction error from the last frame.
// Computes inter prediction errors from the golden and alt ref frams and
// Updates stats accordingly.
// Inputs:
// cpi: the encoder setting. Only a few params in it will be used.
// last_frame: the frame buffer of the last frame.
// golden_frame: the frame buffer of the golden frame.
// unit_row: row index in the unit of first pass block size.
// unit_col: column index in the unit of first pass block size.
// recon_yoffset: the y offset of the reconstructed frame buffer,
// indicating the starting point of the current block.
// recont_uvoffset: the u/v offset of the reconstructed frame buffer,
// indicating the starting point of the current block.
// src_yoffset: the y offset of the source frame buffer.
// fp_block_size: first pass block size.
// this_intra_error: the intra prediction error of this block.
// raw_motion_err_counts: the count of raw motion vectors.
// raw_motion_err_list: the array that records the raw motion error.
// ref_mv: the reference used to start the motion search
// best_mv: the best mv found
// last_non_zero_mv: the last non zero mv found in this tile row.
// stats: frame encoding stats.
// Modifies:
// raw_motion_err_list
// best_ref_mv
// last_mv
// stats: many member params in it.
// Returns:
// this_inter_error
static int firstpass_inter_prediction(
AV1_COMP *cpi, ThreadData *td, const YV12_BUFFER_CONFIG *const last_frame,
const YV12_BUFFER_CONFIG *const golden_frame, const int unit_row,
const int unit_col, const int recon_yoffset, const int recon_uvoffset,
const int src_yoffset, const BLOCK_SIZE fp_block_size,
const int this_intra_error, const int raw_motion_err_counts,
int *raw_motion_err_list, const MV ref_mv, MV *best_mv,
MV *last_non_zero_mv, FRAME_STATS *stats) {
int this_inter_error = this_intra_error;
AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;
CurrentFrame *const current_frame = &cm->current_frame;
MACROBLOCK *const x = &td->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int is_high_bitdepth = is_cur_buf_hbd(xd);
const int bitdepth = xd->bd;
const int unit_scale = mi_size_wide[fp_block_size];
const BLOCK_SIZE bsize =
get_bsize(mi_params, fp_block_size, unit_row, unit_col);
const int fp_block_size_height = block_size_wide[fp_block_size];
const int unit_width = mi_size_wide[fp_block_size];
const int unit_rows = get_unit_rows(fp_block_size, mi_params->mb_rows);
const int unit_cols = get_unit_cols(fp_block_size, mi_params->mb_cols);
// Assume 0,0 motion with no mv overhead.
FULLPEL_MV mv = kZeroFullMv;
xd->plane[0].pre[0].buf = last_frame->y_buffer + recon_yoffset;
// Set up limit values for motion vectors to prevent them extending
// outside the UMV borders.
av1_set_mv_col_limits(mi_params, &x->mv_limits, unit_col * unit_width,
fp_block_size_height >> MI_SIZE_LOG2,
cpi->oxcf.border_in_pixels);
int motion_error =
get_prediction_error_bitdepth(is_high_bitdepth, bitdepth, bsize,
&x->plane[0].src, &xd->plane[0].pre[0]);
// Compute the motion error of the 0,0 motion using the last source
// frame as the reference. Skip the further motion search on
// reconstructed frame if this error is small.
struct buf_2d unscaled_last_source_buf_2d;
unscaled_last_source_buf_2d.buf =
cpi->unscaled_last_source->y_buffer + src_yoffset;
unscaled_last_source_buf_2d.stride = cpi->unscaled_last_source->y_stride;
const int raw_motion_error = get_prediction_error_bitdepth(
is_high_bitdepth, bitdepth, bsize, &x->plane[0].src,
&unscaled_last_source_buf_2d);
raw_motion_err_list[raw_motion_err_counts] = raw_motion_error;
const FIRST_PASS_SPEED_FEATURES *const fp_sf = &cpi->sf.fp_sf;
if (raw_motion_error > fp_sf->skip_motion_search_threshold) {
// Test last reference frame using the previous best mv as the
// starting point (best reference) for the search.
first_pass_motion_search(cpi, x, &ref_mv, &mv, &motion_error);
// If the current best reference mv is not centered on 0,0 then do a
// 0,0 based search as well.
if ((fp_sf->skip_zeromv_motion_search == 0) && !is_zero_mv(&ref_mv)) {
FULLPEL_MV tmp_mv = kZeroFullMv;
int tmp_err = INT_MAX;
first_pass_motion_search(cpi, x, &kZeroMv, &tmp_mv, &tmp_err);
if (tmp_err < motion_error) {
motion_error = tmp_err;
mv = tmp_mv;
}
}
// Motion search in 2nd reference frame.
int gf_motion_error = motion_error;
if ((current_frame->frame_number > 1) && golden_frame != NULL) {
FULLPEL_MV tmp_mv = kZeroFullMv;
// Assume 0,0 motion with no mv overhead.
xd->plane[0].pre[0].buf = golden_frame->y_buffer + recon_yoffset;
xd->plane[0].pre[0].stride = golden_frame->y_stride;
gf_motion_error =
get_prediction_error_bitdepth(is_high_bitdepth, bitdepth, bsize,
&x->plane[0].src, &xd->plane[0].pre[0]);
first_pass_motion_search(cpi, x, &kZeroMv, &tmp_mv, &gf_motion_error);
}
if (gf_motion_error < motion_error && gf_motion_error < this_intra_error) {
++stats->second_ref_count;
}
// In accumulating a score for the 2nd reference frame take the
// best of the motion predicted score and the intra coded error
// (just as will be done for) accumulation of "coded_error" for
// the last frame.
if ((current_frame->frame_number > 1) && golden_frame != NULL) {
stats->sr_coded_error += AOMMIN(gf_motion_error, this_intra_error);
} else {
// TODO(chengchen): I believe logically this should also be changed to
// stats->sr_coded_error += AOMMIN(gf_motion_error, this_intra_error).
stats->sr_coded_error += motion_error;
}
// Reset to last frame as reference buffer.
xd->plane[0].pre[0].buf = last_frame->y_buffer + recon_yoffset;
xd->plane[1].pre[0].buf = last_frame->u_buffer + recon_uvoffset;
xd->plane[2].pre[0].buf = last_frame->v_buffer + recon_uvoffset;
} else {
stats->sr_coded_error += motion_error;
}
// Start by assuming that intra mode is best.
*best_mv = kZeroMv;
if (motion_error <= this_intra_error) {
// Keep a count of cases where the inter and intra were very close
// and very low. This helps with scene cut detection for example in
// cropped clips with black bars at the sides or top and bottom.
if (((this_intra_error - INTRA_MODE_PENALTY) * 9 <= motion_error * 10) &&
(this_intra_error < (2 * INTRA_MODE_PENALTY))) {
stats->neutral_count += 1.0;
// Also track cases where the intra is not much worse than the inter
// and use this in limiting the GF/arf group length.
} else if ((this_intra_error > NCOUNT_INTRA_THRESH) &&
(this_intra_error < (NCOUNT_INTRA_FACTOR * motion_error))) {
stats->neutral_count +=
(double)motion_error / DOUBLE_DIVIDE_CHECK((double)this_intra_error);
}
*best_mv = get_mv_from_fullmv(&mv);
this_inter_error = motion_error;
xd->mi[0]->mode = NEWMV;
xd->mi[0]->mv[0].as_mv = *best_mv;
xd->mi[0]->tx_size = TX_4X4;
xd->mi[0]->ref_frame[0] = LAST_FRAME;
xd->mi[0]->ref_frame[1] = NONE_FRAME;
if (fp_sf->disable_recon == 0) {
av1_enc_build_inter_predictor(cm, xd, unit_row * unit_scale,
unit_col * unit_scale, NULL, bsize,
AOM_PLANE_Y, AOM_PLANE_Y);
av1_encode_sby_pass1(cpi, x, bsize);
}
stats->sum_mvr += best_mv->row;
stats->sum_mvr_abs += abs(best_mv->row);
stats->sum_mvc += best_mv->col;
stats->sum_mvc_abs += abs(best_mv->col);
stats->sum_mvrs += best_mv->row * best_mv->row;
stats->sum_mvcs += best_mv->col * best_mv->col;
++stats->inter_count;
accumulate_mv_stats(*best_mv, mv, unit_row, unit_col, unit_rows, unit_cols,
last_non_zero_mv, stats);
}
return this_inter_error;
}
// Normalize the first pass stats.
// Error / counters are normalized to each MB.
// MVs are normalized to the width/height of the frame.
static void normalize_firstpass_stats(FIRSTPASS_STATS *fps,
double num_mbs_16x16, double f_w,
double f_h) {
fps->coded_error /= num_mbs_16x16;
fps->sr_coded_error /= num_mbs_16x16;
fps->intra_error /= num_mbs_16x16;
fps->frame_avg_wavelet_energy /= num_mbs_16x16;
fps->MVr /= f_h;
fps->mvr_abs /= f_h;
fps->MVc /= f_w;
fps->mvc_abs /= f_w;
fps->MVrv /= (f_h * f_h);
fps->MVcv /= (f_w * f_w);
fps->new_mv_count /= num_mbs_16x16;
}
// Updates the first pass stats of this frame.
// Input:
// cpi: the encoder setting. Only a few params in it will be used.
// stats: stats accumulated for this frame.
// raw_err_stdev: the statndard deviation for the motion error of all the
// inter blocks of the (0,0) motion using the last source
// frame as the reference.
// frame_number: current frame number.
// ts_duration: Duration of the frame / collection of frames.
// Updates:
// twopass->total_stats: the accumulated stats.
// twopass->stats_buf_ctx->stats_in_end: the pointer to the current stats,
// update its value and its position
// in the buffer.
static void update_firstpass_stats(AV1_COMP *cpi,
const FRAME_STATS *const stats,
const double raw_err_stdev,
const int frame_number,
const int64_t ts_duration,
const BLOCK_SIZE fp_block_size) {
TWO_PASS *twopass = &cpi->ppi->twopass;
AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;
FIRSTPASS_STATS *this_frame_stats = twopass->stats_buf_ctx->stats_in_end;
FIRSTPASS_STATS fps;
// The minimum error here insures some bit allocation to frames even
// in static regions. The allocation per MB declines for larger formats
// where the typical "real" energy per MB also falls.
// Initial estimate here uses sqrt(mbs) to define the min_err, where the
// number of mbs is proportional to the image area.
const int num_mbs_16X16 = (cpi->oxcf.resize_cfg.resize_mode != RESIZE_NONE)
? cpi->initial_mbs
: mi_params->MBs;
// Number of actual units used in the first pass, it can be other square
// block sizes than 16X16.
const int num_mbs = get_num_mbs(fp_block_size, num_mbs_16X16);
const double min_err = 200 * sqrt(num_mbs);
fps.weight = stats->intra_factor * stats->brightness_factor;
fps.frame = frame_number;
fps.coded_error = (double)(stats->coded_error >> 8) + min_err;
fps.sr_coded_error = (double)(stats->sr_coded_error >> 8) + min_err;
fps.intra_error = (double)(stats->intra_error >> 8) + min_err;
fps.frame_avg_wavelet_energy = (double)stats->frame_avg_wavelet_energy;
fps.count = 1.0;
fps.pcnt_inter = (double)stats->inter_count / num_mbs;
fps.pcnt_second_ref = (double)stats->second_ref_count / num_mbs;
fps.pcnt_neutral = (double)stats->neutral_count / num_mbs;
fps.intra_skip_pct = (double)stats->intra_skip_count / num_mbs;
fps.inactive_zone_rows = (double)stats->image_data_start_row;
fps.inactive_zone_cols = (double)0; // Placeholder: not currently supported.
fps.raw_error_stdev = raw_err_stdev;
fps.is_flash = 0;
fps.noise_var = (double)0;
fps.cor_coeff = (double)1.0;
if (stats->mv_count > 0) {
fps.MVr = (double)stats->sum_mvr / stats->mv_count;
fps.mvr_abs = (double)stats->sum_mvr_abs / stats->mv_count;
fps.MVc = (double)stats->sum_mvc / stats->mv_count;
fps.mvc_abs = (double)stats->sum_mvc_abs / stats->mv_count;
fps.MVrv = ((double)stats->sum_mvrs -
((double)stats->sum_mvr * stats->sum_mvr / stats->mv_count)) /
stats->mv_count;
fps.MVcv = ((double)stats->sum_mvcs -
((double)stats->sum_mvc * stats->sum_mvc / stats->mv_count)) /
stats->mv_count;
fps.mv_in_out_count = (double)stats->sum_in_vectors / (stats->mv_count * 2);
fps.new_mv_count = stats->new_mv_count;
fps.pcnt_motion = (double)stats->mv_count / num_mbs;
} else {
fps.MVr = 0.0;
fps.mvr_abs = 0.0;
fps.MVc = 0.0;
fps.mvc_abs = 0.0;
fps.MVrv = 0.0;
fps.MVcv = 0.0;
fps.mv_in_out_count = 0.0;
fps.new_mv_count = 0.0;
fps.pcnt_motion = 0.0;
}
// TODO(paulwilkins): Handle the case when duration is set to 0, or
// something less than the full time between subsequent values of
// cpi->source_time_stamp.
fps.duration = (double)ts_duration;
normalize_firstpass_stats(&fps, num_mbs_16X16, cm->width, cm->height);
// We will store the stats inside the persistent twopass struct (and NOT the
// local variable 'fps'), and then cpi->output_pkt_list will point to it.
*this_frame_stats = fps;
if (!cpi->ppi->lap_enabled) {
output_stats(this_frame_stats, cpi->ppi->output_pkt_list);
} else {
av1_firstpass_info_push(&twopass->firstpass_info, this_frame_stats);
}
if (cpi->ppi->twopass.stats_buf_ctx->total_stats != NULL) {
av1_accumulate_stats(cpi->ppi->twopass.stats_buf_ctx->total_stats, &fps);
}
/*In the case of two pass, first pass uses it as a circular buffer,
* when LAP is enabled it is used as a linear buffer*/
twopass->stats_buf_ctx->stats_in_end++;
if ((cpi->oxcf.pass == AOM_RC_FIRST_PASS) &&
(twopass->stats_buf_ctx->stats_in_end >=
twopass->stats_buf_ctx->stats_in_buf_end)) {
twopass->stats_buf_ctx->stats_in_end =
twopass->stats_buf_ctx->stats_in_start;
}
}
static void print_reconstruction_frame(
const YV12_BUFFER_CONFIG *const last_frame, int frame_number,
int do_print) {
if (!do_print) return;
char filename[512];
FILE *recon_file;
snprintf(filename, sizeof(filename), "enc%04d.yuv", frame_number);
if (frame_number == 0) {
recon_file = fopen(filename, "wb");
} else {
recon_file = fopen(filename, "ab");
}
fwrite(last_frame->buffer_alloc, last_frame->frame_size, 1, recon_file);
fclose(recon_file);
}
static FRAME_STATS accumulate_frame_stats(FRAME_STATS *mb_stats, int mb_rows,
int mb_cols) {
FRAME_STATS stats = { 0 };
int i, j;
stats.image_data_start_row = INVALID_ROW;
for (j = 0; j < mb_rows; j++) {
for (i = 0; i < mb_cols; i++) {
FRAME_STATS mb_stat = mb_stats[j * mb_cols + i];
stats.brightness_factor += mb_stat.brightness_factor;
stats.coded_error += mb_stat.coded_error;
stats.frame_avg_wavelet_energy += mb_stat.frame_avg_wavelet_energy;
if (stats.image_data_start_row == INVALID_ROW &&
mb_stat.image_data_start_row != INVALID_ROW) {
stats.image_data_start_row = mb_stat.image_data_start_row;
}
stats.inter_count += mb_stat.inter_count;
stats.intra_error += mb_stat.intra_error;
stats.intra_factor += mb_stat.intra_factor;
stats.intra_skip_count += mb_stat.intra_skip_count;
stats.mv_count += mb_stat.mv_count;
stats.neutral_count += mb_stat.neutral_count;
stats.new_mv_count += mb_stat.new_mv_count;
stats.second_ref_count += mb_stat.second_ref_count;
stats.sr_coded_error += mb_stat.sr_coded_error;
stats.sum_in_vectors += mb_stat.sum_in_vectors;
stats.sum_mvc += mb_stat.sum_mvc;
stats.sum_mvc_abs += mb_stat.sum_mvc_abs;
stats.sum_mvcs += mb_stat.sum_mvcs;
stats.sum_mvr += mb_stat.sum_mvr;
stats.sum_mvr_abs += mb_stat.sum_mvr_abs;
stats.sum_mvrs += mb_stat.sum_mvrs;
}
}
return stats;
}
static void setup_firstpass_data(AV1_COMMON *const cm,
FirstPassData *firstpass_data,
const int unit_rows, const int unit_cols) {
CHECK_MEM_ERROR(cm, firstpass_data->raw_motion_err_list,
aom_calloc(unit_rows * unit_cols,
sizeof(*firstpass_data->raw_motion_err_list)));
CHECK_MEM_ERROR(
cm, firstpass_data->mb_stats,
aom_calloc(unit_rows * unit_cols, sizeof(*firstpass_data->mb_stats)));
for (int j = 0; j < unit_rows; j++) {
for (int i = 0; i < unit_cols; i++) {
firstpass_data->mb_stats[j * unit_cols + i].image_data_start_row =
INVALID_ROW;
}
}
}
static void free_firstpass_data(FirstPassData *firstpass_data) {
aom_free(firstpass_data->raw_motion_err_list);
aom_free(firstpass_data->mb_stats);
}
int av1_get_unit_rows_in_tile(TileInfo tile, const BLOCK_SIZE fp_block_size) {
const int unit_height_log2 = mi_size_high_log2[fp_block_size];
const int mi_rows_aligned_to_unit =
ALIGN_POWER_OF_TWO(tile.mi_row_end - tile.mi_row_start, unit_height_log2);
const int unit_rows = mi_rows_aligned_to_unit >> unit_height_log2;
return unit_rows;
}
int av1_get_unit_cols_in_tile(TileInfo tile, const BLOCK_SIZE fp_block_size) {
const int unit_width_log2 = mi_size_wide_log2[fp_block_size];
const int mi_cols_aligned_to_unit =
ALIGN_POWER_OF_TWO(tile.mi_col_end - tile.mi_col_start, unit_width_log2);
const int unit_cols = mi_cols_aligned_to_unit >> unit_width_log2;
return unit_cols;
}
#define FIRST_PASS_ALT_REF_DISTANCE 16
static void first_pass_tile(AV1_COMP *cpi, ThreadData *td,
TileDataEnc *tile_data,
const BLOCK_SIZE fp_block_size) {
TileInfo *tile = &tile_data->tile_info;
const int unit_height = mi_size_high[fp_block_size];
const int unit_height_log2 = mi_size_high_log2[fp_block_size];
for (int mi_row = tile->mi_row_start; mi_row < tile->mi_row_end;
mi_row += unit_height) {
av1_first_pass_row(cpi, td, tile_data, mi_row >> unit_height_log2,
fp_block_size);
}
}
static void first_pass_tiles(AV1_COMP *cpi, const BLOCK_SIZE fp_block_size) {
AV1_COMMON *const cm = &cpi->common;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
const int num_planes = av1_num_planes(&cpi->common);
for (int plane = 0; plane < num_planes; plane++) {
const int subsampling_xy =
plane ? cm->seq_params->subsampling_x + cm->seq_params->subsampling_y
: 0;
const int sb_size = MAX_SB_SQUARE >> subsampling_xy;
CHECK_MEM_ERROR(
cm, cpi->td.mb.plane[plane].src_diff,
(int16_t *)aom_memalign(
32, sizeof(*cpi->td.mb.plane[plane].src_diff) * sb_size));
}
for (int tile_row = 0; tile_row < tile_rows; ++tile_row) {
for (int tile_col = 0; tile_col < tile_cols; ++tile_col) {
TileDataEnc *const tile_data =
&cpi->tile_data[tile_row * tile_cols + tile_col];
first_pass_tile(cpi, &cpi->td, tile_data, fp_block_size);
}
}
for (int plane = 0; plane < num_planes; plane++) {
if (cpi->td.mb.plane[plane].src_diff) {
aom_free(cpi->td.mb.plane[plane].src_diff);
cpi->td.mb.plane[plane].src_diff = NULL;
}
}
}
void av1_first_pass_row(AV1_COMP *cpi, ThreadData *td, TileDataEnc *tile_data,
const int unit_row, const BLOCK_SIZE fp_block_size) {
MACROBLOCK *const x = &td->mb;
AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;
const SequenceHeader *const seq_params = cm->seq_params;
const int num_planes = av1_num_planes(cm);
MACROBLOCKD *const xd = &x->e_mbd;
TileInfo *tile = &tile_data->tile_info;
const int qindex = find_fp_qindex(seq_params->bit_depth);
const int fp_block_size_width = block_size_high[fp_block_size];
const int fp_block_size_height = block_size_wide[fp_block_size];
const int unit_width = mi_size_wide[fp_block_size];
const int unit_width_log2 = mi_size_wide_log2[fp_block_size];
const int unit_height_log2 = mi_size_high_log2[fp_block_size];
const int unit_cols = mi_params->mb_cols * 4 / unit_width;
int raw_motion_err_counts = 0;
int unit_row_in_tile = unit_row - (tile->mi_row_start >> unit_height_log2);
int unit_col_start = tile->mi_col_start >> unit_width_log2;
int unit_cols_in_tile = av1_get_unit_cols_in_tile(*tile, fp_block_size);
MultiThreadInfo *const mt_info = &cpi->mt_info;
AV1EncRowMultiThreadInfo *const enc_row_mt = &mt_info->enc_row_mt;
AV1EncRowMultiThreadSync *const row_mt_sync = &tile_data->row_mt_sync;
const YV12_BUFFER_CONFIG *const last_frame =
get_ref_frame_yv12_buf(cm, LAST_FRAME);
const YV12_BUFFER_CONFIG *golden_frame =
get_ref_frame_yv12_buf(cm, GOLDEN_FRAME);
YV12_BUFFER_CONFIG *const this_frame = &cm->cur_frame->buf;
PICK_MODE_CONTEXT *ctx = td->firstpass_ctx;
FRAME_STATS *mb_stats =
cpi->firstpass_data.mb_stats + unit_row * unit_cols + unit_col_start;
int *raw_motion_err_list = cpi->firstpass_data.raw_motion_err_list +
unit_row * unit_cols + unit_col_start;
MV *first_top_mv = &tile_data->firstpass_top_mv;
for (int i = 0; i < num_planes; ++i) {
x->plane[i].coeff = ctx->coeff[i];
x->plane[i].qcoeff = ctx->qcoeff[i];
x->plane[i].eobs = ctx->eobs[i];
x->plane[i].txb_entropy_ctx = ctx->txb_entropy_ctx[i];
x->plane[i].dqcoeff = ctx->dqcoeff[i];
}
const int src_y_stride = cpi->source->y_stride;
const int recon_y_stride = this_frame->y_stride;
const int recon_uv_stride = this_frame->uv_stride;
const int uv_mb_height =
fp_block_size_height >> (this_frame->y_height > this_frame->uv_height);
MV best_ref_mv = kZeroMv;
MV last_mv;
// Reset above block coeffs.
xd->up_available = (unit_row_in_tile != 0);
int recon_yoffset = (unit_row * recon_y_stride * fp_block_size_height) +
(unit_col_start * fp_block_size_width);
int src_yoffset = (unit_row * src_y_stride * fp_block_size_height) +
(unit_col_start * fp_block_size_width);
int recon_uvoffset = (unit_row * recon_uv_stride * uv_mb_height) +
(unit_col_start * uv_mb_height);
// Set up limit values for motion vectors to prevent them extending
// outside the UMV borders.
av1_set_mv_row_limits(
mi_params, &x->mv_limits, (unit_row << unit_height_log2),
(fp_block_size_height >> MI_SIZE_LOG2), cpi->oxcf.border_in_pixels);
av1_setup_src_planes(x, cpi->source, unit_row << unit_height_log2,
tile->mi_col_start, num_planes, fp_block_size);
// Fix - zero the 16x16 block first. This ensures correct this_intra_error for
// block sizes smaller than 16x16.
av1_zero_array(x->plane[0].src_diff, 256);
for (int mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += unit_width) {
const int unit_col = mi_col >> unit_width_log2;
const int unit_col_in_tile = unit_col - unit_col_start;
(*(enc_row_mt->sync_read_ptr))(row_mt_sync, unit_row_in_tile,
unit_col_in_tile);
if (unit_col_in_tile == 0) {
last_mv = *first_top_mv;
}
int this_intra_error = firstpass_intra_prediction(
cpi, td, this_frame, tile, unit_row, unit_col, recon_yoffset,
recon_uvoffset, fp_block_size, qindex, mb_stats);
if (!frame_is_intra_only(cm)) {
const int this_inter_error = firstpass_inter_prediction(
cpi, td, last_frame, golden_frame, unit_row, unit_col, recon_yoffset,
recon_uvoffset, src_yoffset, fp_block_size, this_intra_error,
raw_motion_err_counts, raw_motion_err_list, best_ref_mv, &best_ref_mv,
&last_mv, mb_stats);
if (unit_col_in_tile == 0) {
*first_top_mv = last_mv;
}
mb_stats->coded_error += this_inter_error;
++raw_motion_err_counts;
} else {
mb_stats->sr_coded_error += this_intra_error;
mb_stats->coded_error += this_intra_error;
}
// Adjust to the next column of MBs.
x->plane[0].src.buf += fp_block_size_width;
x->plane[1].src.buf += uv_mb_height;
x->plane[2].src.buf += uv_mb_height;
recon_yoffset += fp_block_size_width;
src_yoffset += fp_block_size_width;
recon_uvoffset += uv_mb_height;
mb_stats++;
(*(enc_row_mt->sync_write_ptr))(row_mt_sync, unit_row_in_tile,
unit_col_in_tile, unit_cols_in_tile);
}
}
void av1_first_pass(AV1_COMP *cpi, const int64_t ts_duration) {
MACROBLOCK *const x = &cpi->td.mb;
AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;
CurrentFrame *const current_frame = &cm->current_frame;
const SequenceHeader *const seq_params = cm->seq_params;
const int num_planes = av1_num_planes(cm);
MACROBLOCKD *const xd = &x->e_mbd;
const int qindex = find_fp_qindex(seq_params->bit_depth);
// Detect if the key frame is screen content type.
if (frame_is_intra_only(cm)) {
FeatureFlags *const features = &cm->features;
av1_set_screen_content_options(cpi, features);
}
// Prepare the speed features
av1_set_speed_features_framesize_independent(cpi, cpi->oxcf.speed);
// Unit size for the first pass encoding.
const BLOCK_SIZE fp_block_size =
get_fp_block_size(cpi->is_screen_content_type);
// Number of rows in the unit size.
// Note mi_params->mb_rows and mi_params->mb_cols are in the unit of 16x16.
const int unit_rows = get_unit_rows(fp_block_size, mi_params->mb_rows);
const int unit_cols = get_unit_cols(fp_block_size, mi_params->mb_cols);
// Set fp_block_size, for the convenience of multi-thread usage.
cpi->fp_block_size = fp_block_size;
setup_firstpass_data(cm, &cpi->firstpass_data, unit_rows, unit_cols);
int *raw_motion_err_list = cpi->firstpass_data.raw_motion_err_list;
FRAME_STATS *mb_stats = cpi->firstpass_data.mb_stats;
// multi threading info
MultiThreadInfo *const mt_info = &cpi->mt_info;
AV1EncRowMultiThreadInfo *const enc_row_mt = &mt_info->enc_row_mt;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
if (cpi->allocated_tiles < tile_cols * tile_rows) {
av1_row_mt_mem_dealloc(cpi);
av1_alloc_tile_data(cpi);
}
av1_init_tile_data(cpi);
const YV12_BUFFER_CONFIG *const last_frame =
get_ref_frame_yv12_buf(cm, LAST_FRAME);
const YV12_BUFFER_CONFIG *golden_frame =
get_ref_frame_yv12_buf(cm, GOLDEN_FRAME);
YV12_BUFFER_CONFIG *const this_frame = &cm->cur_frame->buf;
// First pass code requires valid last and new frame buffers.
assert(this_frame != NULL);
assert(frame_is_intra_only(cm) || (last_frame != NULL));
av1_setup_frame_size(cpi);
av1_set_mv_search_params(cpi);
set_mi_offsets(mi_params, xd, 0, 0);
xd->mi[0]->bsize = fp_block_size;
// Do not use periodic key frames.
cpi->rc.frames_to_key = INT_MAX;
av1_set_quantizer(
cm, cpi->oxcf.q_cfg.qm_minlevel, cpi->oxcf.q_cfg.qm_maxlevel, qindex,
cpi->oxcf.q_cfg.enable_chroma_deltaq, cpi->oxcf.q_cfg.enable_hdr_deltaq);
av1_setup_block_planes(xd, seq_params->subsampling_x,
seq_params->subsampling_y, num_planes);
av1_setup_src_planes(x, cpi->source, 0, 0, num_planes, fp_block_size);
av1_setup_dst_planes(xd->plane, seq_params->sb_size, this_frame, 0, 0, 0,
num_planes);
if (!frame_is_intra_only(cm)) {
av1_setup_pre_planes(xd, 0, last_frame, 0, 0, NULL, num_planes);
}
set_mi_offsets(mi_params, xd, 0, 0);
// Don't store luma on the fist pass since chroma is not computed
xd->cfl.store_y = 0;
av1_frame_init_quantizer(cpi);
av1_default_coef_probs(cm);
av1_init_mode_probs(cm->fc);
av1_init_mv_probs(cm);
av1_initialize_rd_consts(cpi);
enc_row_mt->sync_read_ptr = av1_row_mt_sync_read_dummy;
enc_row_mt->sync_write_ptr = av1_row_mt_sync_write_dummy;
if (mt_info->num_workers > 1) {
enc_row_mt->sync_read_ptr = av1_row_mt_sync_read;
enc_row_mt->sync_write_ptr = av1_row_mt_sync_write;
av1_fp_encode_tiles_row_mt(cpi);
} else {
first_pass_tiles(cpi, fp_block_size);
}
FRAME_STATS stats = accumulate_frame_stats(mb_stats, unit_rows, unit_cols);
int total_raw_motion_err_count =
frame_is_intra_only(cm) ? 0 : unit_rows * unit_cols;
const double raw_err_stdev =
raw_motion_error_stdev(raw_motion_err_list, total_raw_motion_err_count);
free_firstpass_data(&cpi->firstpass_data);
// Clamp the image start to rows/2. This number of rows is discarded top
// and bottom as dead data so rows / 2 means the frame is blank.
if ((stats.image_data_start_row > unit_rows / 2) ||
(stats.image_data_start_row == INVALID_ROW)) {
stats.image_data_start_row = unit_rows / 2;
}
// Exclude any image dead zone
if (stats.image_data_start_row > 0) {
stats.intra_skip_count =
AOMMAX(0, stats.intra_skip_count -
(stats.image_data_start_row * unit_cols * 2));
}
TWO_PASS *twopass = &cpi->ppi->twopass;
const int num_mbs_16X16 = (cpi->oxcf.resize_cfg.resize_mode != RESIZE_NONE)
? cpi->initial_mbs
: mi_params->MBs;
// Number of actual units used in the first pass, it can be other square
// block sizes than 16X16.
const int num_mbs = get_num_mbs(fp_block_size, num_mbs_16X16);
stats.intra_factor = stats.intra_factor / (double)num_mbs;
stats.brightness_factor = stats.brightness_factor / (double)num_mbs;
FIRSTPASS_STATS *this_frame_stats = twopass->stats_buf_ctx->stats_in_end;
update_firstpass_stats(cpi, &stats, raw_err_stdev,
current_frame->frame_number, ts_duration,
fp_block_size);
// Copy the previous Last Frame back into gf buffer if the prediction is good
// enough... but also don't allow it to lag too far.
if ((twopass->sr_update_lag > 3) ||
((current_frame->frame_number > 0) &&
(this_frame_stats->pcnt_inter > 0.20) &&
((this_frame_stats->intra_error /
DOUBLE_DIVIDE_CHECK(this_frame_stats->coded_error)) > 2.0))) {
if (golden_frame != NULL) {
assign_frame_buffer_p(
&cm->ref_frame_map[get_ref_frame_map_idx(cm, GOLDEN_FRAME)],
cm->ref_frame_map[get_ref_frame_map_idx(cm, LAST_FRAME)]);
}
twopass->sr_update_lag = 1;
} else {
++twopass->sr_update_lag;
}
aom_extend_frame_borders(this_frame, num_planes);
// The frame we just compressed now becomes the last frame.
assign_frame_buffer_p(
&cm->ref_frame_map[get_ref_frame_map_idx(cm, LAST_FRAME)], cm->cur_frame);
// Special case for the first frame. Copy into the GF buffer as a second
// reference.
if (current_frame->frame_number == 0 &&
get_ref_frame_map_idx(cm, GOLDEN_FRAME) != INVALID_IDX) {
assign_frame_buffer_p(
&cm->ref_frame_map[get_ref_frame_map_idx(cm, GOLDEN_FRAME)],
cm->ref_frame_map[get_ref_frame_map_idx(cm, LAST_FRAME)]);
}
print_reconstruction_frame(last_frame, current_frame->frame_number,
/*do_print=*/0);
++current_frame->frame_number;
}
aom_codec_err_t av1_firstpass_info_init(FIRSTPASS_INFO *firstpass_info,
FIRSTPASS_STATS *ext_stats_buf,
int ext_stats_buf_size) {
assert(IMPLIES(ext_stats_buf == NULL, ext_stats_buf_size == 0));
if (ext_stats_buf == NULL) {
firstpass_info->stats_buf = firstpass_info->static_stats_buf;
firstpass_info->stats_buf_size =
sizeof(firstpass_info->static_stats_buf) /
sizeof(firstpass_info->static_stats_buf[0]);
firstpass_info->start_index = 0;
firstpass_info->cur_index = 0;
firstpass_info->stats_count = 0;
firstpass_info->future_stats_count = 0;
firstpass_info->past_stats_count = 0;
av1_zero(firstpass_info->total_stats);
if (ext_stats_buf_size == 0) {
return AOM_CODEC_OK;
} else {
return AOM_CODEC_ERROR;
}
} else {
firstpass_info->stats_buf = ext_stats_buf;
firstpass_info->stats_buf_size = ext_stats_buf_size;
firstpass_info->start_index = 0;
firstpass_info->cur_index = 0;
firstpass_info->stats_count = firstpass_info->stats_buf_size;
firstpass_info->future_stats_count = firstpass_info->stats_count;
firstpass_info->past_stats_count = 0;
av1_zero(firstpass_info->total_stats);
for (int i = 0; i < firstpass_info->stats_count; ++i) {
av1_accumulate_stats(&firstpass_info->total_stats,
&firstpass_info->stats_buf[i]);
}
}
return AOM_CODEC_OK;
}
aom_codec_err_t av1_firstpass_info_move_cur_index(
FIRSTPASS_INFO *firstpass_info) {
assert(firstpass_info->future_stats_count +
firstpass_info->past_stats_count ==
firstpass_info->stats_count);
if (firstpass_info->future_stats_count > 1) {
firstpass_info->cur_index =
(firstpass_info->cur_index + 1) % firstpass_info->stats_buf_size;
--firstpass_info->future_stats_count;
++firstpass_info->past_stats_count;
return AOM_CODEC_OK;
} else {
return AOM_CODEC_ERROR;
}
}
aom_codec_err_t av1_firstpass_info_pop(FIRSTPASS_INFO *firstpass_info) {
if (firstpass_info->stats_count > 0 && firstpass_info->past_stats_count > 0) {
const int next_start =
(firstpass_info->start_index + 1) % firstpass_info->stats_buf_size;
firstpass_info->start_index = next_start;
--firstpass_info->stats_count;
--firstpass_info->past_stats_count;
return AOM_CODEC_OK;
} else {
return AOM_CODEC_ERROR;
}
}
aom_codec_err_t av1_firstpass_info_move_cur_index_and_pop(
FIRSTPASS_INFO *firstpass_info) {
aom_codec_err_t ret = av1_firstpass_info_move_cur_index(firstpass_info);
if (ret != AOM_CODEC_OK) return ret;
ret = av1_firstpass_info_pop(firstpass_info);
return ret;
}
aom_codec_err_t av1_firstpass_info_push(FIRSTPASS_INFO *firstpass_info,
const FIRSTPASS_STATS *input_stats) {
if (firstpass_info->stats_count < firstpass_info->stats_buf_size) {
const int next_index =
(firstpass_info->start_index + firstpass_info->stats_count) %
firstpass_info->stats_buf_size;
firstpass_info->stats_buf[next_index] = *input_stats;
++firstpass_info->stats_count;
++firstpass_info->future_stats_count;
av1_accumulate_stats(&firstpass_info->total_stats, input_stats);
return AOM_CODEC_OK;
} else {
return AOM_CODEC_ERROR;
}
}
const FIRSTPASS_STATS *av1_firstpass_info_peek(
const FIRSTPASS_INFO *firstpass_info, int offset_from_cur) {
if (offset_from_cur >= -firstpass_info->past_stats_count &&
offset_from_cur < firstpass_info->future_stats_count) {
const int index = (firstpass_info->cur_index + offset_from_cur) %
firstpass_info->stats_buf_size;
return &firstpass_info->stats_buf[index];
} else {
return NULL;
}
}
int av1_firstpass_info_future_count(const FIRSTPASS_INFO *firstpass_info,
int offset_from_cur) {
if (offset_from_cur < firstpass_info->future_stats_count) {
return firstpass_info->future_stats_count - offset_from_cur;
}
return 0;
}
int av1_firstpass_info_past_count(const FIRSTPASS_INFO *firstpass_info,
int offset_from_cur) {
if (offset_from_cur >= -firstpass_info->past_stats_count) {
return offset_from_cur + firstpass_info->past_stats_count;
}
return 0;
}