Refactoring: Hide VideoCodec.codecSpecific as "private"

webrtc/modules/video_coding/codecs/vp9/vp9_impl.cc

 /*
  *  Copyright (c) 2014 The WebRTC 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.
  *
  */
@@ skipping 224 matching lines @@
   // Allow zero to represent an unspecified maxBitRate
   if (inst->maxBitrate > 0 && inst->startBitrate > inst->maxBitrate) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   if (inst->width < 1 || inst->height < 1) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   if (number_of_cores < 1) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
-  if (inst->codecSpecific.VP9.numberOfTemporalLayers > 3) {
+  if (inst->VP9().numberOfTemporalLayers > 3) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   // libvpx currently supports only one or two spatial layers.
-  if (inst->codecSpecific.VP9.numberOfSpatialLayers > 2) {
+  if (inst->VP9().numberOfSpatialLayers > 2) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
 
   int ret_val = Release();
   if (ret_val < 0) {
     return ret_val;
   }
   if (encoder_ == NULL) {
     encoder_ = new vpx_codec_ctx_t;
   }
   if (config_ == NULL) {
     config_ = new vpx_codec_enc_cfg_t;
   }
   timestamp_ = 0;
   if (&codec_ != inst) {
     codec_ = *inst;
   }
 
-  num_spatial_layers_ = inst->codecSpecific.VP9.numberOfSpatialLayers;
-  num_temporal_layers_ = inst->codecSpecific.VP9.numberOfTemporalLayers;
+  num_spatial_layers_ = inst->VP9().numberOfSpatialLayers;
+  num_temporal_layers_ = inst->VP9().numberOfTemporalLayers;
   if (num_temporal_layers_ == 0)
     num_temporal_layers_ = 1;
 
   // Random start 16 bits is enough.
   picture_id_ = static_cast<uint16_t>(rand()) & 0x7FFF;  // NOLINT
   // Allocate memory for encoded image
   if (encoded_image_._buffer != NULL) {
     delete[] encoded_image_._buffer;
   }
   encoded_image_._size = CalcBufferSize(kI420, codec_.width, codec_.height);
@@ skipping 11 matching lines @@
   config_->g_w = codec_.width;
   config_->g_h = codec_.height;
   config_->rc_target_bitrate = inst->startBitrate;  // in kbit/s
   config_->g_error_resilient = 1;
   // Setting the time base of the codec.
   config_->g_timebase.num = 1;
   config_->g_timebase.den = 90000;
   config_->g_lag_in_frames = 0;  // 0- no frame lagging
   config_->g_threads = 1;
   // Rate control settings.
-  config_->rc_dropframe_thresh =
-      inst->codecSpecific.VP9.frameDroppingOn ? 30 : 0;
+  config_->rc_dropframe_thresh = inst->VP9().frameDroppingOn ? 30 : 0;
   config_->rc_end_usage = VPX_CBR;
   config_->g_pass = VPX_RC_ONE_PASS;
   config_->rc_min_quantizer = 2;
   config_->rc_max_quantizer = 52;
   config_->rc_undershoot_pct = 50;
   config_->rc_overshoot_pct = 50;
   config_->rc_buf_initial_sz = 500;
   config_->rc_buf_optimal_sz = 600;
   config_->rc_buf_sz = 1000;
   // Set the maximum target size of any key-frame.
   rc_max_intra_target_ = MaxIntraTarget(config_->rc_buf_optimal_sz);
-  if (inst->codecSpecific.VP9.keyFrameInterval > 0) {
+  if (inst->VP9().keyFrameInterval > 0) {
     config_->kf_mode = VPX_KF_AUTO;
-    config_->kf_max_dist = inst->codecSpecific.VP9.keyFrameInterval;
+    config_->kf_max_dist = inst->VP9().keyFrameInterval;
     // Needs to be set (in svc mode) to get correct periodic key frame interval
     // (will have no effect in non-svc).
     config_->kf_min_dist = config_->kf_max_dist;
   } else {
     config_->kf_mode = VPX_KF_DISABLED;
   }
-  config_->rc_resize_allowed =
-      inst->codecSpecific.VP9.automaticResizeOn ? 1 : 0;
+  config_->rc_resize_allowed = inst->VP9().automaticResizeOn ? 1 : 0;
   // Determine number of threads based on the image size and #cores.
   config_->g_threads =
       NumberOfThreads(config_->g_w, config_->g_h, number_of_cores);
 
   cpu_speed_ = GetCpuSpeed(config_->g_w, config_->g_h);
 
   // TODO(asapersson): Check configuration of temporal switch up and increase
   // pattern length.
-  is_flexible_mode_ = inst->codecSpecific.VP9.flexibleMode;
+  is_flexible_mode_ = inst->VP9().flexibleMode;
   if (is_flexible_mode_) {
     config_->temporal_layering_mode = VP9E_TEMPORAL_LAYERING_MODE_BYPASS;
     config_->ts_number_layers = num_temporal_layers_;
     if (codec_.mode == kScreensharing)
       spatial_layer_->ConfigureBitrate(inst->startBitrate, 0);
   } else if (num_temporal_layers_ == 1) {
     gof_.SetGofInfoVP9(kTemporalStructureMode1);
     config_->temporal_layering_mode = VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING;
     config_->ts_number_layers = 1;
     config_->ts_rate_decimator[0] = 1;
@@ skipping 73 matching lines @@
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
 
   if (vpx_codec_enc_init(encoder_, vpx_codec_vp9_cx(), config_, 0)) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
   }
   vpx_codec_control(encoder_, VP8E_SET_CPUUSED, cpu_speed_);
   vpx_codec_control(encoder_, VP8E_SET_MAX_INTRA_BITRATE_PCT,
                     rc_max_intra_target_);
   vpx_codec_control(encoder_, VP9E_SET_AQ_MODE,
-                    inst->codecSpecific.VP9.adaptiveQpMode ? 3 : 0);
+                    inst->VP9().adaptiveQpMode ? 3 : 0);
 
   vpx_codec_control(
       encoder_, VP9E_SET_SVC,
       (num_temporal_layers_ > 1 || num_spatial_layers_ > 1) ? 1 : 0);
   if (num_temporal_layers_ > 1 || num_spatial_layers_ > 1) {
     vpx_codec_control(encoder_, VP9E_SET_SVC_PARAMETERS,
                       &svc_internal_.svc_params);
   }
   // Register callback for getting each spatial layer.
   vpx_codec_priv_output_cx_pkt_cb_pair_t cbp = {
       VP9EncoderImpl::EncoderOutputCodedPacketCallback,
       reinterpret_cast<void*>(this)};
   vpx_codec_control(encoder_, VP9E_REGISTER_CX_CALLBACK,
                     reinterpret_cast<void*>(&cbp));
 
   // Control function to set the number of column tiles in encoding a frame, in
   // log2 unit: e.g., 0 = 1 tile column, 1 = 2 tile columns, 2 = 4 tile columns.
   // The number tile columns will be capped by the encoder based on image size
   // (minimum width of tile column is 256 pixels, maximum is 4096).
   vpx_codec_control(encoder_, VP9E_SET_TILE_COLUMNS, (config_->g_threads >> 1));
 #if !defined(WEBRTC_ARCH_ARM) && !defined(WEBRTC_ARCH_ARM64) && \
   !defined(ANDROID)
   // Note denoiser is still off by default until further testing/optimization,
-  // i.e., codecSpecific.VP9.denoisingOn == 0.
+  // i.e., VP9().denoisingOn == 0.
   vpx_codec_control(encoder_, VP9E_SET_NOISE_SENSITIVITY,
-                    inst->codecSpecific.VP9.denoisingOn ? 1 : 0);
+                    inst->VP9().denoisingOn ? 1 : 0);
 #endif
   if (codec_.mode == kScreensharing) {
     // Adjust internal parameters to screen content.
     vpx_codec_control(encoder_, VP9E_SET_TUNE_CONTENT, 1);
   }
   // Enable encoder skip of static/low content blocks.
   vpx_codec_control(encoder_, VP8E_SET_STATIC_THRESHOLD, 1);
   inited_ = true;
   return WEBRTC_VIDEO_CODEC_OK;
 }
@@ skipping 94 matching lines @@
 void VP9EncoderImpl::PopulateCodecSpecific(CodecSpecificInfo* codec_specific,
                                            const vpx_codec_cx_pkt& pkt,
                                            uint32_t timestamp) {
   assert(codec_specific != NULL);
   codec_specific->codecType = kVideoCodecVP9;
   codec_specific->codec_name = ImplementationName();
   CodecSpecificInfoVP9* vp9_info = &(codec_specific->codecSpecific.VP9);
   // TODO(asapersson): Set correct value.
   vp9_info->inter_pic_predicted =
       (pkt.data.frame.flags & VPX_FRAME_IS_KEY) ? false : true;
-  vp9_info->flexible_mode = codec_.codecSpecific.VP9.flexibleMode;
-  vp9_info->ss_data_available = ((pkt.data.frame.flags & VPX_FRAME_IS_KEY) &&
-                                 !codec_.codecSpecific.VP9.flexibleMode)
-                                    ? true
-                                    : false;
+  vp9_info->flexible_mode = codec_.VP9()->flexibleMode;
+  vp9_info->ss_data_available =
+      ((pkt.data.frame.flags & VPX_FRAME_IS_KEY) && !codec_.VP9()->flexibleMode)
+          ? true
+          : false;
 
   vpx_svc_layer_id_t layer_id = {0};
   vpx_codec_control(encoder_, VP9E_GET_SVC_LAYER_ID, &layer_id);
 
   assert(num_temporal_layers_ > 0);
   assert(num_spatial_layers_ > 0);
   if (num_temporal_layers_ == 1) {
     assert(layer_id.temporal_layer_id == 0);
     vp9_info->temporal_idx = kNoTemporalIdx;
   } else {
@@ skipping 413 matching lines @@
   frame_buffer_pool_.ClearPool();
   inited_ = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 const char* VP9DecoderImpl::ImplementationName() const {
   return "libvpx";
 }
 
 }  // namespace webrtc