C++ (Cpp) set_default_lf_deltas示例

示例#1

文件： vp9_entropymode.c 项目： 93i/godot

void vp9_setup_past_independence(VP9_COMMON *cm) {
  // Reset the segment feature data to the default stats:
  // Features disabled, 0, with delta coding (Default state).
  struct loopfilter *const lf = &cm->lf;

  int i;
  vp9_clearall_segfeatures(&cm->seg);
  cm->seg.abs_delta = SEGMENT_DELTADATA;

  if (cm->last_frame_seg_map && !cm->frame_parallel_decode)
    memset(cm->last_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));

  if (cm->current_frame_seg_map)
    memset(cm->current_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));

  // Reset the mode ref deltas for loop filter
  vp9_zero(lf->last_ref_deltas);
  vp9_zero(lf->last_mode_deltas);
  set_default_lf_deltas(lf);

  // To force update of the sharpness
  lf->last_sharpness_level = -1;

  vp9_default_coef_probs(cm);
  init_mode_probs(cm->fc);
  vp9_init_mv_probs(cm);
  cm->fc->initialized = 1;

  if (cm->frame_type == KEY_FRAME ||
      cm->error_resilient_mode || cm->reset_frame_context == 3) {
    // Reset all frame contexts.
    for (i = 0; i < FRAME_CONTEXTS; ++i)
      cm->frame_contexts[i] = *cm->fc;
  } else if (cm->reset_frame_context == 2) {
    // Reset only the frame context specified in the frame header.
    cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
  }

  // prev_mip will only be allocated in encoder.
  if (frame_is_intra_only(cm) && cm->prev_mip && !cm->frame_parallel_decode)
    memset(cm->prev_mip, 0,
           cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->prev_mip));

  vp9_zero(cm->ref_frame_sign_bias);

  cm->frame_context_idx = 0;
}

示例#2

文件： vp9_entropymode.c 项目： IllusionRom-deprecated/android_platform_external_libvpx

void vp9_setup_past_independence(VP9_COMMON *cm) {
  // Reset the segment feature data to the default stats:
  // Features disabled, 0, with delta coding (Default state).
  struct loopfilter *const lf = &cm->lf;

  int i;
  vp9_clearall_segfeatures(&cm->seg);
  cm->seg.abs_delta = SEGMENT_DELTADATA;
  if (cm->last_frame_seg_map)
    vpx_memset(cm->last_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));

  // Reset the mode ref deltas for loop filter
  vp9_zero(lf->last_ref_deltas);
  vp9_zero(lf->last_mode_deltas);
  set_default_lf_deltas(lf);

  // To force update of the sharpness
  lf->last_sharpness_level = -1;

  vp9_default_coef_probs(cm);
  vp9_init_mbmode_probs(cm);
  vp9_init_mv_probs(cm);
  vp9_copy(cm->fc.inter_mode_probs, default_inter_mode_probs);

  if (cm->frame_type == KEY_FRAME ||
      cm->error_resilient_mode || cm->reset_frame_context == 3) {
    // Reset all frame contexts.
    for (i = 0; i < NUM_FRAME_CONTEXTS; ++i)
      cm->frame_contexts[i] = cm->fc;
  } else if (cm->reset_frame_context == 2) {
    // Reset only the frame context specified in the frame header.
    cm->frame_contexts[cm->frame_context_idx] = cm->fc;
  }

  vpx_memset(cm->prev_mip, 0,
             cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
  vpx_memset(cm->mip, 0,
             cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));

  vp9_update_mode_info_border(cm, cm->mip);
  vp9_update_mode_info_border(cm, cm->prev_mip);

  vp9_zero(cm->ref_frame_sign_bias);

  cm->frame_context_idx = 0;
}