Remove unused 'last_key_frame_picture_id' field.

webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc

 /*
  *  Copyright (c) 2012 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 127 matching lines @@
       timestamp_(0),
       qp_max_(56),  // Setting for max quantizer.
       cpu_speed_default_(-6),
       number_of_cores_(0),
       rc_max_intra_target_(0),
       key_frame_request_(kMaxSimulcastStreams, false) {
   uint32_t seed = rtc::Time32();
   srand(seed);
 
   picture_id_.reserve(kMaxSimulcastStreams);
-  last_key_frame_picture_id_.reserve(kMaxSimulcastStreams);
   temporal_layers_.reserve(kMaxSimulcastStreams);
   raw_images_.reserve(kMaxSimulcastStreams);
   encoded_images_.reserve(kMaxSimulcastStreams);
   send_stream_.reserve(kMaxSimulcastStreams);
   cpu_speed_.assign(kMaxSimulcastStreams, cpu_speed_default_);
   encoders_.reserve(kMaxSimulcastStreams);
   configurations_.reserve(kMaxSimulcastStreams);
   downsampling_factors_.reserve(kMaxSimulcastStreams);
 }
 
@@ skipping 169 matching lines @@
   codec_ = *inst;
 
   // Code expects simulcastStream resolutions to be correct, make sure they are
   // filled even when there are no simulcast layers.
   if (codec_.numberOfSimulcastStreams == 0) {
     codec_.simulcastStream[0].width = codec_.width;
     codec_.simulcastStream[0].height = codec_.height;
   }
 
   picture_id_.resize(number_of_streams);
-  last_key_frame_picture_id_.resize(number_of_streams);
   encoded_images_.resize(number_of_streams);
   encoders_.resize(number_of_streams);
   configurations_.resize(number_of_streams);
   downsampling_factors_.resize(number_of_streams);
   raw_images_.resize(number_of_streams);
   send_stream_.resize(number_of_streams);
   send_stream_[0] = true;  // For non-simulcast case.
   cpu_speed_.resize(number_of_streams);
   std::fill(key_frame_request_.begin(), key_frame_request_.end(), false);
 
   int idx = number_of_streams - 1;
   for (int i = 0; i < (number_of_streams - 1); ++i, --idx) {
     int gcd = GCD(inst->simulcastStream[idx].width,
                   inst->simulcastStream[idx - 1].width);
     downsampling_factors_[i].num = inst->simulcastStream[idx].width / gcd;
     downsampling_factors_[i].den = inst->simulcastStream[idx - 1].width / gcd;
     send_stream_[i] = false;
   }
   if (number_of_streams > 1) {
     send_stream_[number_of_streams - 1] = false;
     downsampling_factors_[number_of_streams - 1].num = 1;
     downsampling_factors_[number_of_streams - 1].den = 1;
   }
   for (int i = 0; i < number_of_streams; ++i) {
     // Random start, 16 bits is enough.
     picture_id_[i] = static_cast<uint16_t>(rand()) & 0x7FFF;  // NOLINT
-    last_key_frame_picture_id_[i] = -1;
     // allocate memory for encoded image
     if (encoded_images_[i]._buffer != NULL) {
       delete[] encoded_images_[i]._buffer;
     }
     encoded_images_[i]._size =
         CalcBufferSize(kI420, codec_.width, codec_.height);
     encoded_images_[i]._buffer = new uint8_t[encoded_images_[i]._size];
     encoded_images_[i]._completeFrame = true;
   }
   // populate encoder configuration with default values
@@ skipping 424 matching lines @@
 void VP8EncoderImpl::PopulateCodecSpecific(
     CodecSpecificInfo* codec_specific,
     const vpx_codec_cx_pkt_t& pkt,
     int stream_idx,
     uint32_t timestamp) {
   assert(codec_specific != NULL);
   codec_specific->codecType = kVideoCodecVP8;
   codec_specific->codec_name = ImplementationName();
   CodecSpecificInfoVP8* vp8Info = &(codec_specific->codecSpecific.VP8);
   vp8Info->pictureId = picture_id_[stream_idx];
-  if (pkt.data.frame.flags & VPX_FRAME_IS_KEY) {
-    last_key_frame_picture_id_[stream_idx] = picture_id_[stream_idx];
-  }
   vp8Info->simulcastIdx = stream_idx;
   vp8Info->keyIdx = kNoKeyIdx;  // TODO(hlundin) populate this
   vp8Info->nonReference = (pkt.data.frame.flags & VPX_FRAME_IS_DROPPABLE) != 0;
   temporal_layers_[stream_idx]->PopulateCodecSpecific(
       (pkt.data.frame.flags & VPX_FRAME_IS_KEY) != 0, vp8Info, timestamp);
   // Prepare next.
   picture_id_[stream_idx] = (picture_id_[stream_idx] + 1) & 0x7FFF;
 }
 
 int VP8EncoderImpl::GetEncodedPartitions(const VideoFrame& input_image) {
@@ skipping 326 matching lines @@
   buffer_pool_.Release();
   inited_ = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 const char* VP8DecoderImpl::ImplementationName() const {
   return "libvpx";
 }
 
 }  // namespace webrtc