Remove PayloadRouter dependency from ViEEncoder

webrtc/video/vie_encoder.h

 /*
  *  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 14 matching lines @@
 #include "webrtc/modules/video_coding/utility/ivf_file_writer.h"
 #include "webrtc/modules/video_processing/include/video_processing.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 
 class Config;
 class EncodedImageCallback;
 class OveruseFrameDetector;
 class PacedSender;
-class PayloadRouter;
 class ProcessThread;
 class QMVideoSettingsCallback;
 class SendStatisticsProxy;
 class ViEBitrateObserver;
 class ViEEffectFilter;
 class VideoCodingModule;
 class VideoEncoder;
 
+// VieEncoder represent a video encoder that accepts raw video frames as input
+// and produces an encoded bit stream.
+// Usage:
+// 1. Instantiate
+// 2. Call Init
+// 3. Call RegisterExternalEncoder if available.
+// 4. Call SetEncoder with the codec settings and the object that shall receive
+//    the encoded bit stream.
+// 5. Call Start.
+// 6. For each available raw video frame call EncodeVideoFrame.
 class ViEEncoder : public VideoEncoderRateObserver,
                    public EncodedImageCallback,
                    public VCMPacketizationCallback,
                    public VCMSendStatisticsCallback {
  public:
   friend class ViEBitrateObserver;
 
   ViEEncoder(uint32_t number_of_cores,
              const std::vector<uint32_t>& ssrcs,
              ProcessThread* module_process_thread,
              SendStatisticsProxy* stats_proxy,
              // TODO(nisse): Used only for tests, delete?
              rtc::VideoSinkInterface<VideoFrame>* pre_encode_callback,
              OveruseFrameDetector* overuse_detector,
-             PacedSender* pacer,
-             PayloadRouter* payload_router,
-             EncodedImageCallback* post_encode_callback);
+             PacedSender* pacer);
   ~ViEEncoder();
 
   bool Init();
 
   VideoCodingModule* vcm() const;
 
   void SetNetworkTransmissionState(bool is_transmitting);
 
   // Returns the id of the owning channel.
   int Owner() const;
 
+  void Start();
   // Drops incoming packets before they get to the encoder.
   void Pause();
-  void Restart();
 
   // Codec settings.
   int32_t RegisterExternalEncoder(VideoEncoder* encoder,
                                   uint8_t pl_type,
                                   bool internal_source);
   int32_t DeRegisterExternalEncoder(uint8_t pl_type);
-  void SetEncoder(const VideoCodec& video_codec, int min_transmit_bitrate_bps);
+  void SetEncoder(const VideoCodec& video_codec,
+                  int min_transmit_bitrate_bps,
+                  size_t max_data_payload_length,
+                  EncodedImageCallback* sink);
 
   void EncodeVideoFrame(const VideoFrame& video_frame);
   void SendKeyFrame();
 
   uint32_t LastObservedBitrateBps() const;
   int CodecTargetBitrate(uint32_t* bitrate) const;
   // Loss protection. Must be called before SetEncoder() to have max packet size
   // updated according to protection.
   // TODO(pbos): Set protection method on construction or extract vcm_ outside
   // this class and set it on construction there.
@@ skipping 39 matching lines @@
   const std::unique_ptr<VideoProcessing> vp_;
   const std::unique_ptr<QMVideoSettingsCallback> qm_callback_;
   const std::unique_ptr<VideoCodingModule> vcm_;
 
   rtc::CriticalSection data_cs_;
 
   SendStatisticsProxy* const stats_proxy_;
   rtc::VideoSinkInterface<VideoFrame>* const pre_encode_callback_;
   OveruseFrameDetector* const overuse_detector_;
   PacedSender* const pacer_;
-  PayloadRouter* const send_payload_router_;
-  EncodedImageCallback* const post_encode_callback_;
 
   // The time we last received an input frame or encoded frame. This is used to
   // track when video is stopped long enough that we also want to stop sending
   // padding.
   int64_t time_of_last_frame_activity_ms_ GUARDED_BY(data_cs_);
   VideoCodec encoder_config_ GUARDED_BY(data_cs_);
   int min_transmit_bitrate_bps_ GUARDED_BY(data_cs_);
   uint32_t last_observed_bitrate_bps_ GUARDED_BY(data_cs_);
   bool network_is_transmitting_ GUARDED_BY(data_cs_);
   bool encoder_paused_ GUARDED_BY(data_cs_);
   bool encoder_paused_and_dropped_frame_ GUARDED_BY(data_cs_);
   std::vector<int64_t> time_last_intra_request_ms_ GUARDED_BY(data_cs_);
 
+  rtc::CriticalSection sink_cs_;
+  EncodedImageCallback* sink_ GUARDED_BY(sink_cs_);
+
   ProcessThread* module_process_thread_;
 
   bool has_received_sli_ GUARDED_BY(data_cs_);
   uint8_t picture_id_sli_ GUARDED_BY(data_cs_);
   bool has_received_rpsi_ GUARDED_BY(data_cs_);
   uint64_t picture_id_rpsi_ GUARDED_BY(data_cs_);
 
   bool video_suspended_ GUARDED_BY(data_cs_);
 
   std::unique_ptr<IvfFileWriter> file_writers_[kMaxLayers] GUARDED_BY(data_cs_);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIE_ENCODER_H_