/* *  Copyright (c) 2018 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 "test/svc_test.h" namespace svc_test {void OnePassCbrSvc::SetSvcConfig(const int num_spatial_layer,                                 const int num_temporal_layer) {  SetConfig(num_temporal_layer);  cfg_.ss_number_layers = num_spatial_layer;  cfg_.ts_number_layers = num_temporal_layer;  if (num_spatial_layer == 1) {    svc_params_.scaling_factor_num[0] = 288;    svc_params_.scaling_factor_den[0] = 288;  } else if (num_spatial_layer == 2) {    svc_params_.scaling_factor_num[0] = 144;    svc_params_.scaling_factor_den[0] = 288;    svc_params_.scaling_factor_num[1] = 288;    svc_params_.scaling_factor_den[1] = 288;  } else if (num_spatial_layer == 3) {    svc_params_.scaling_factor_num[0] = 72;    svc_params_.scaling_factor_den[0] = 288;    svc_params_.scaling_factor_num[1] = 144;    svc_params_.scaling_factor_den[1] = 288;    svc_params_.scaling_factor_num[2] = 288;    svc_params_.scaling_factor_den[2] = 288;  }  number_spatial_layers_ = cfg_.ss_number_layers;  number_temporal_layers_ = cfg_.ts_number_layers;} void OnePassCbrSvc::PreEncodeFrameHookSetup(::libvpx_test::VideoSource *video,                                            ::libvpx_test::Encoder *encoder) {  if (video->frame() == 0) {    for (int i = 0; i < VPX_MAX_LAYERS; ++i) {      svc_params_.max_quantizers[i] = 63;      svc_params_.min_quantizers[i] = 0;    }    if (number_temporal_layers_ > 1 || number_spatial_layers_ > 1) {      svc_params_.speed_per_layer[0] = base_speed_setting_;      for (int i = 1; i < VPX_SS_MAX_LAYERS; ++i) {        svc_params_.speed_per_layer[i] = speed_setting_;      }      encoder->Control(VP9E_SET_SVC, 1);      encoder->Control(VP9E_SET_SVC_PARAMETERS, &svc_params_);    }    encoder->Control(VP8E_SET_CPUUSED, speed_setting_);    encoder->Control(VP9E_SET_AQ_MODE, 3);    encoder->Control(VP8E_SET_MAX_INTRA_BITRATE_PCT, 300);    encoder->Control(VP9E_SET_TILE_COLUMNS, get_msb(cfg_.g_threads));    encoder->Control(VP9E_SET_ROW_MT, 1);    encoder->Control(VP8E_SET_STATIC_THRESHOLD, 1);  }   superframe_count_++;  temporal_layer_id_ = 0;  if (number_temporal_layers_ == 2) {    temporal_layer_id_ = (superframe_count_ % 2 != 0);  } else if (number_temporal_layers_ == 3) {    if (superframe_count_ % 2 != 0) temporal_layer_id_ = 2;    if (superframe_count_ > 1) {      if ((superframe_count_ - 2) % 4 == 0) temporal_layer_id_ = 1;    }  }   frame_flags_ = 0;} void OnePassCbrSvc::PostEncodeFrameHook(::libvpx_test::Encoder *encoder) {  vpx_svc_layer_id_t layer_id;  encoder->Control(VP9E_GET_SVC_LAYER_ID, &layer_id);  temporal_layer_id_ = layer_id.temporal_layer_id;  for (int sl = 0; sl < number_spatial_layers_; ++sl) {    for (int tl = temporal_layer_id_; tl < number_temporal_layers_; ++tl) {      const int layer = sl * number_temporal_layers_ + tl;      bits_in_buffer_model_[layer] +=          static_cast<int64_t>(layer_target_avg_bandwidth_[layer]);    }  }} void OnePassCbrSvc::AssignLayerBitrates() {  int sl, spatial_layer_target;  int spatial_layers = cfg_.ss_number_layers;  int temporal_layers = cfg_.ts_number_layers;  float total = 0;  float alloc_ratio[VPX_MAX_LAYERS] = { 0 };  float framerate = 30.0;  for (sl = 0; sl < spatial_layers; ++sl) {    if (svc_params_.scaling_factor_den[sl] > 0) {      alloc_ratio[sl] =          static_cast<float>((svc_params_.scaling_factor_num[sl] * 1.0 /                              svc_params_.scaling_factor_den[sl]));      total += alloc_ratio[sl];    }  }  for (sl = 0; sl < spatial_layers; ++sl) {    cfg_.ss_target_bitrate[sl] = spatial_layer_target =        static_cast<unsigned int>(cfg_.rc_target_bitrate * alloc_ratio[sl] /                                  total);    const int index = sl * temporal_layers;    if (cfg_.temporal_layering_mode == 3) {      cfg_.layer_target_bitrate[index] = spatial_layer_target >> 1;      cfg_.layer_target_bitrate[index + 1] =          (spatial_layer_target >> 1) + (spatial_layer_target >> 2);      cfg_.layer_target_bitrate[index + 2] = spatial_layer_target;    } else if (cfg_.temporal_layering_mode == 2) {      cfg_.layer_target_bitrate[index] = spatial_layer_target * 2 / 3;      cfg_.layer_target_bitrate[index + 1] = spatial_layer_target;    } else if (cfg_.temporal_layering_mode <= 1) {      cfg_.layer_target_bitrate[index] = spatial_layer_target;    }  }  for (sl = 0; sl < spatial_layers; ++sl) {    for (int tl = 0; tl < temporal_layers; ++tl) {      const int layer = sl * temporal_layers + tl;      float layer_framerate = framerate;      if (temporal_layers == 2 && tl == 0) layer_framerate = framerate / 2;      if (temporal_layers == 3 && tl == 0) layer_framerate = framerate / 4;      if (temporal_layers == 3 && tl == 1) layer_framerate = framerate / 2;      layer_target_avg_bandwidth_[layer] = static_cast<int>(          cfg_.layer_target_bitrate[layer] * 1000.0 / layer_framerate);      bits_in_buffer_model_[layer] =          cfg_.layer_target_bitrate[layer] * cfg_.rc_buf_initial_sz;    }  }}}  // namespace svc_test