Add support for writing raw encoder output to .ivf files.

webrtc/modules/video_coding/video_sender.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.
  */
 
@@ skipping 11 matching lines @@
 #include "webrtc/system_wrappers/include/clock.h"
 
 namespace webrtc {
 namespace vcm {
 
 VideoSender::VideoSender(Clock* clock,
                          EncodedImageCallback* post_encode_callback,
                          VideoEncoderRateObserver* encoder_rate_observer,
                          VCMQMSettingsCallback* qm_settings_callback)
     : clock_(clock),
-      process_crit_sect_(CriticalSectionWrapper::CreateCriticalSection()),
       _encoder(nullptr),
       _encodedFrameCallback(post_encode_callback),
       _mediaOpt(clock_),
       _sendStatsCallback(nullptr),
       _codecDataBase(encoder_rate_observer, &_encodedFrameCallback),
       frame_dropper_enabled_(true),
       _sendStatsTimer(1000, clock_),
       current_codec_(),
       qm_settings_callback_(qm_settings_callback),
       protection_callback_(nullptr),
       encoder_params_({0, 0, 0, 0}),
       encoder_has_internal_source_(false),
       next_frame_types_(1, kVideoFrameDelta) {
   // Allow VideoSender to be created on one thread but used on another, post
   // construction. This is currently how this class is being used by at least
   // one external project (diffractor).
   _mediaOpt.EnableQM(qm_settings_callback_ != nullptr);
   _mediaOpt.Reset();
   main_thread_.DetachFromThread();
 }
 
 VideoSender::~VideoSender() {}
 
 void VideoSender::Process() {
   if (_sendStatsTimer.TimeUntilProcess() == 0) {
     _sendStatsTimer.Processed();
-    CriticalSectionScoped cs(process_crit_sect_.get());
+    rtc::CritScope cs(&process_crit_);
     if (_sendStatsCallback != nullptr) {
       uint32_t bitRate = _mediaOpt.SentBitRate();
       uint32_t frameRate = _mediaOpt.SentFrameRate();
       _sendStatsCallback->SendStatistics(bitRate, frameRate);
     }
   }
 
   {
     rtc::CritScope cs(&params_crit_);
     // Force an encoder parameters update, so that incoming frame rate is
@@ skipping 172 matching lines @@
   _encodedFrameCallback.SetMediaOpt(&_mediaOpt);
   _encodedFrameCallback.SetTransportCallback(transport);
   return VCM_OK;
 }
 
 // Register video output information callback which will be called to deliver
 // information about the video stream produced by the encoder, for instance the
 // average frame rate and bit rate.
 int32_t VideoSender::RegisterSendStatisticsCallback(
     VCMSendStatisticsCallback* sendStats) {
-  CriticalSectionScoped cs(process_crit_sect_.get());
+  rtc::CritScope cs(&process_crit_);
   _sendStatsCallback = sendStats;
   return VCM_OK;
 }
 
 // Register a video protection callback which will be called to deliver the
 // requested FEC rate and NACK status (on/off).
 // Note: this callback is assumed to only be registered once and before it is
 // used in this class.
 int32_t VideoSender::RegisterProtectionCallback(
     VCMProtectionCallback* protection_callback) {
@@ skipping 131 matching lines @@
   // 10 kbps.
   int window_bps = std::max(threshold_bps / 10, 10000);
   _mediaOpt.SuspendBelowMinBitrate(threshold_bps, window_bps);
 }
 
 bool VideoSender::VideoSuspended() const {
   return _mediaOpt.IsVideoSuspended();
 }
 }  // namespace vcm
 }  // namespace webrtc