shithub: libvpx

ref: f71dd6e23e9d238ab0b03cdf105db733b8486778
dir: /vp9/encoder/vp9_ext_ratectrl.c/

/*
 *  Copyright (c) 2020 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "vp9/encoder/vp9_ext_ratectrl.h"
#include "vp9/common/vp9_common.h"

void vp9_extrc_init(EXT_RATECTRL *ext_ratectrl) { vp9_zero(*ext_ratectrl); }

void vp9_extrc_create(vpx_rc_funcs_t funcs, vpx_rc_config_t ratectrl_config,
                      EXT_RATECTRL *ext_ratectrl) {
  vpx_rc_firstpass_stats_t *rc_firstpass_stats;
  vp9_extrc_delete(ext_ratectrl);
  ext_ratectrl->funcs = funcs;
  ext_ratectrl->ratectrl_config = ratectrl_config;
  ext_ratectrl->funcs.create_model(ext_ratectrl->funcs.priv,
                                   &ext_ratectrl->ratectrl_config,
                                   ext_ratectrl->model);
  rc_firstpass_stats = &ext_ratectrl->rc_firstpass_stats;
  rc_firstpass_stats->num_frames = ratectrl_config.show_frame_count;
  rc_firstpass_stats->frame_stats =
      vpx_malloc(sizeof(*rc_firstpass_stats->frame_stats) *
                 rc_firstpass_stats->num_frames);
  ext_ratectrl->ready = 1;
}

void vp9_extrc_delete(EXT_RATECTRL *ext_ratectrl) {
  if (ext_ratectrl->ready) {
    ext_ratectrl->funcs.delete_model(ext_ratectrl->model);
  }
  vp9_extrc_init(ext_ratectrl);
}

static void gen_rc_firstpass_stats(const FIRSTPASS_STATS *stats,
                                   vpx_rc_frame_stats_t *rc_frame_stats) {
  rc_frame_stats->frame = stats->frame;
  rc_frame_stats->weight = stats->weight;
  rc_frame_stats->intra_error = stats->intra_error;
  rc_frame_stats->coded_error = stats->coded_error;
  rc_frame_stats->sr_coded_error = stats->sr_coded_error;
  rc_frame_stats->frame_noise_energy = stats->frame_noise_energy;
  rc_frame_stats->pcnt_inter = stats->pcnt_inter;
  rc_frame_stats->pcnt_motion = stats->pcnt_motion;
  rc_frame_stats->pcnt_second_ref = stats->pcnt_second_ref;
  rc_frame_stats->pcnt_neutral = stats->pcnt_neutral;
  rc_frame_stats->pcnt_intra_low = stats->pcnt_intra_low;
  rc_frame_stats->pcnt_intra_high = stats->pcnt_intra_high;
  rc_frame_stats->intra_skip_pct = stats->intra_skip_pct;
  rc_frame_stats->intra_smooth_pct = stats->intra_smooth_pct;
  rc_frame_stats->inactive_zone_rows = stats->inactive_zone_rows;
  rc_frame_stats->inactive_zone_cols = stats->inactive_zone_cols;
  rc_frame_stats->MVr = stats->MVr;
  rc_frame_stats->mvr_abs = stats->mvr_abs;
  rc_frame_stats->MVc = stats->MVc;
  rc_frame_stats->mvc_abs = stats->mvc_abs;
  rc_frame_stats->MVrv = stats->MVrv;
  rc_frame_stats->MVcv = stats->MVcv;
  rc_frame_stats->mv_in_out_count = stats->mv_in_out_count;
  rc_frame_stats->duration = stats->duration;
  rc_frame_stats->count = stats->count;
}

void vp9_extrc_send_firstpass_stats(EXT_RATECTRL *ext_ratectrl,
                                    const FIRST_PASS_INFO *first_pass_info) {
  if (ext_ratectrl->ready) {
    vpx_rc_firstpass_stats_t *rc_firstpass_stats =
        &ext_ratectrl->rc_firstpass_stats;
    int i;
    assert(rc_firstpass_stats->num_frames == first_pass_info->num_frames);
    for (i = 0; i < rc_firstpass_stats->num_frames; ++i) {
      gen_rc_firstpass_stats(&first_pass_info->stats[i],
                             &rc_firstpass_stats->frame_stats[i]);
    }
    ext_ratectrl->funcs.send_firstpass_stats(ext_ratectrl->model,
                                             rc_firstpass_stats);
  }
}

static int extrc_get_frame_type(FRAME_UPDATE_TYPE update_type) {
  // TODO(angiebird): Add unit test to make sure this function behaves like
  // get_frame_type_from_update_type()
  // TODO(angiebird): Merge this function with get_frame_type_from_update_type()
  switch (update_type) {
    case KF_UPDATE: return 0;       // kFrameTypeKey;
    case ARF_UPDATE: return 2;      // kFrameTypeAltRef;
    case GF_UPDATE: return 4;       // kFrameTypeGolden;
    case OVERLAY_UPDATE: return 3;  // kFrameTypeOverlay;
    case LF_UPDATE: return 1;       // kFrameTypeInter;
    default:
      fprintf(stderr, "Unsupported update_type %d\n", update_type);
      abort();
      return 1;
  }
}

void vp9_extrc_get_encodeframe_decision(
    EXT_RATECTRL *ext_ratectrl, const GF_GROUP *gf_group, int show_index,
    int coding_index, vpx_rc_encodeframe_decision_t *encode_frame_decision) {
  if (ext_ratectrl->ready) {
    FRAME_UPDATE_TYPE update_type = gf_group->update_type[gf_group->index];
    vpx_rc_encodeframe_info_t encode_frame_info;
    encode_frame_info.show_index = show_index;
    encode_frame_info.coding_index = coding_index;
    encode_frame_info.frame_type = extrc_get_frame_type(update_type);
    ext_ratectrl->funcs.get_encodeframe_decision(
        ext_ratectrl->model, &encode_frame_info, encode_frame_decision);
  }
}