[Cast] Track audio queued in encoder; account for it in ShouldDropNextFrame().

media/cast/sender/video_sender.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cast/sender/video_sender.h"
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/bind.h"
@@ skipping 32 matching lines @@
     CastTransportSender* const transport_sender)
     : FrameSender(
         cast_environment,
         transport_sender,
         base::TimeDelta::FromMilliseconds(video_config.rtcp_interval),
         kVideoFrequency,
         video_config.ssrc,
         video_config.max_frame_rate,
         video_config.target_playout_delay),
       fixed_bitrate_(GetFixedBitrate(video_config)),
-      frames_in_encoder_(0),
       congestion_control_(cast_environment->Clock(),
                           video_config.max_bitrate,
                           video_config.min_bitrate,
                           max_unacked_frames_),
       weak_factory_(this) {
   cast_initialization_status_ = STATUS_VIDEO_UNINITIALIZED;
   VLOG(1) << "max_unacked_frames is " << max_unacked_frames_
           << " for target_playout_delay="
           << target_playout_delay_.InMilliseconds() << " ms"
           << " and max_frame_rate=" << video_config.max_frame_rate;
@@ skipping 226 matching lines @@
     std::vector<uint32> cancel_sending_frames;
     while (latest_acked_frame_id_ != cast_feedback.ack_frame_id) {
       latest_acked_frame_id_++;
       cancel_sending_frames.push_back(latest_acked_frame_id_);
     }
     transport_sender_->CancelSendingFrames(ssrc_, cancel_sending_frames);
     latest_acked_frame_id_ = cast_feedback.ack_frame_id;
   }
 }
 
-bool VideoSender::ShouldDropNextFrame(base::TimeTicks capture_time) const {
-  DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
-  int frames_in_flight = 0;
-  base::TimeDelta duration_in_flight;
-  if (!last_send_time_.is_null()) {
-    frames_in_flight =
-        static_cast<int32>(last_sent_frame_id_ - latest_acked_frame_id_);
-    if (frames_in_flight > 0) {
-      const uint32 oldest_unacked_frame_id = latest_acked_frame_id_ + 1;
-      duration_in_flight =
-          capture_time - GetRecordedReferenceTime(oldest_unacked_frame_id);
-    }
-  }
-  frames_in_flight += frames_in_encoder_;
-  VLOG(2) << frames_in_flight
-          << " frames in flight; last sent: " << last_sent_frame_id_
-          << "; latest acked: " << latest_acked_frame_id_
-          << "; frames in encoder: " << frames_in_encoder_
-          << "; duration in flight: "
-          << duration_in_flight.InMicroseconds() << " usec ("
-          << (target_playout_delay_ > base::TimeDelta() ?
-                  100 * duration_in_flight / target_playout_delay_ :
-                  kint64max) << "%)";
-  return frames_in_flight >= max_unacked_frames_ ||
-      duration_in_flight >= target_playout_delay_;
-}
-
 }  // namespace cast
 }  // namespace media