Add FullStack test for simulcast screenshare mode.

webrtc/video/video_send_stream.cc

 /*
  *  Copyright (c) 2013 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.
  */
 #include "webrtc/video/video_send_stream.h"
@@ skipping 1014 matching lines @@
   }
 }
 
 EncodedImageCallback::Result VideoSendStreamImpl::OnEncodedImage(
     const EncodedImage& encoded_image,
     const CodecSpecificInfo* codec_specific_info,
     const RTPFragmentationHeader* fragmentation) {
   // Encoded is called on whatever thread the real encoder implementation run
   // on. In the case of hardware encoders, there might be several encoders
   // running in parallel on different threads.
+  size_t simulcast_idx = 0;
+  if (codec_specific_info->codecType == kVideoCodecVP8) {
+    simulcast_idx = codec_specific_info->codecSpecific.VP8.simulcastIdx;
+  }
   if (config_->post_encode_callback) {
-    config_->post_encode_callback->EncodedFrameCallback(
-        EncodedFrame(encoded_image._buffer, encoded_image._length,
-                     encoded_image._frameType, encoded_image._encodedWidth,
-                     encoded_image._encodedHeight, encoded_image._timeStamp));
+    config_->post_encode_callback->EncodedFrameCallback(EncodedFrame(
+        encoded_image._buffer, encoded_image._length, encoded_image._frameType,
+        simulcast_idx, encoded_image._timeStamp));
   }
   {
     rtc::CritScope lock(&encoder_activity_crit_sect_);
     if (check_encoder_activity_task_)
       check_encoder_activity_task_->UpdateEncoderActivity();
   }
 
   protection_bitrate_calculator_.UpdateWithEncodedData(encoded_image);
   EncodedImageCallback::Result result = payload_router_.OnEncodedImage(
       encoded_image, codec_specific_info, fragmentation);
@@ skipping 288 matching lines @@
       std::min(config_->rtp.max_packet_size,
                kPathMTU - transport_overhead_bytes_per_packet_);
 
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_) {
     rtp_rtcp->SetMaxRtpPacketSize(rtp_packet_size);
   }
 }
 
 }  // namespace internal
 }  // namespace webrtc