Allow pacer to boost bitrate in order to meet time constraints.

webrtc/video_engine/vie_encoder.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 340 matching lines @@
   }
   if (target_delay_ms_ > 0) {
     // Buffered mode.
     // TODO(pwestin): Workaround until nack is configured as a time and not
     // number of packets.
     return pacer_->QueueInMs() >=
            std::max(
                static_cast<int>(target_delay_ms_ * kEncoderPausePacerMargin),
                kMinPacingDelayMs);
   }
-  if (pacer_->ExpectedQueueTimeMs() > PacedSender::kDefaultMaxQueueLengthMs) {
+  if (pacer_->ExpectedQueueTimeMs() > PacedSender::kMaxQueueLengthMs) {
     // Too much data in pacer queue, drop frame.
     return true;
   }
   return !network_is_transmitting_;
 }
 
 void ViEEncoder::TraceFrameDropStart() {
   // Start trace event only on the first frame after encoder is paused.
   if (!encoder_paused_and_dropped_frame_) {
     TRACE_EVENT_ASYNC_BEGIN0("webrtc", "EncoderPaused", this);
@@ skipping 342 matching lines @@
     const uint32_t width,
     const uint32_t height) {
   return vpm_->SetTargetResolution(width, height, frame_rate);
 }
 
 void QMVideoSettingsCallback::SetTargetFramerate(int frame_rate) {
   vpm_->SetTargetFramerate(frame_rate);
 }
 
 }  // namespace webrtc