Rename ViEEncoder to VideoStreamEncoder.

webrtc/video/vie_encoder.h

Index: webrtc/video/vie_encoder.h
diff --git a/webrtc/video/vie_encoder.h b/webrtc/video/vie_encoder.h
deleted file mode 100644
index 6e9234f383f27a242d3880d865adc0bf8b672120..0000000000000000000000000000000000000000
--- a/webrtc/video/vie_encoder.h
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- *  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.
- */
-
-#ifndef WEBRTC_VIDEO_VIE_ENCODER_H_
-#define WEBRTC_VIDEO_VIE_ENCODER_H_
-
-#include <map>
-#include <memory>
-#include <string>
-#include <vector>
-
-#include "webrtc/api/video/video_rotation.h"
-#include "webrtc/api/video_codecs/video_encoder.h"
-#include "webrtc/call/call.h"
-#include "webrtc/common_types.h"
-#include "webrtc/common_video/include/video_bitrate_allocator.h"
-#include "webrtc/media/base/videosinkinterface.h"
-#include "webrtc/modules/video_coding/include/video_coding_defines.h"
-#include "webrtc/modules/video_coding/utility/quality_scaler.h"
-#include "webrtc/modules/video_coding/video_coding_impl.h"
-#include "webrtc/rtc_base/criticalsection.h"
-#include "webrtc/rtc_base/event.h"
-#include "webrtc/rtc_base/sequenced_task_checker.h"
-#include "webrtc/rtc_base/task_queue.h"
-#include "webrtc/system_wrappers/include/atomic32.h"
-#include "webrtc/typedefs.h"
-#include "webrtc/video/overuse_frame_detector.h"
-#include "webrtc/video_send_stream.h"
-
-namespace webrtc {
-
-class ProcessThread;
-class SendStatisticsProxy;
-class VideoBitrateAllocationObserver;
-
-// VieEncoder represent a video encoder that accepts raw video frames as input
-// and produces an encoded bit stream.
-// Usage:
-//  Instantiate.
-//  Call SetSink.
-//  Call SetSource.
-//  Call ConfigureEncoder with the codec settings.
-//  Call Stop() when done.
-class ViEEncoder : public rtc::VideoSinkInterface<VideoFrame>,
-                   public EncodedImageCallback,
-                   public VCMSendStatisticsCallback,
-                   public AdaptationObserverInterface {
- public:
-  // Interface for receiving encoded video frames and notifications about
-  // configuration changes.
-  class EncoderSink : public EncodedImageCallback {
-   public:
-    virtual void OnEncoderConfigurationChanged(
-        std::vector<VideoStream> streams,
-        int min_transmit_bitrate_bps) = 0;
-  };
-
-  // Number of resolution and framerate reductions (-1: disabled).
-  struct AdaptCounts {
-    int resolution = 0;
-    int fps = 0;
-  };
-
-  // Downscale resolution at most 2 times for CPU reasons.
-  static const int kMaxCpuResolutionDowngrades = 2;
-  // Downscale framerate at most 4 times.
-  static const int kMaxCpuFramerateDowngrades = 4;
-
-  ViEEncoder(uint32_t number_of_cores,
-             SendStatisticsProxy* stats_proxy,
-             const VideoSendStream::Config::EncoderSettings& settings,
-             rtc::VideoSinkInterface<VideoFrame>* pre_encode_callback,
-             EncodedFrameObserver* encoder_timing,
-             std::unique_ptr<OveruseFrameDetector> overuse_detector);
-  ~ViEEncoder();
-  // RegisterProcessThread register |module_process_thread| with those objects
-  // that use it. Registration has to happen on the thread where
-  // |module_process_thread| was created (libjingle's worker thread).
-  // TODO(perkj): Replace the use of |module_process_thread| with a TaskQueue.
-  void RegisterProcessThread(ProcessThread* module_process_thread);
-  void DeRegisterProcessThread();
-
-  // Sets the source that will provide I420 video frames.
-  // |degradation_preference| control whether or not resolution or frame rate
-  // may be reduced.
-  void SetSource(
-      rtc::VideoSourceInterface<VideoFrame>* source,
-      const VideoSendStream::DegradationPreference& degradation_preference);
-
-  // Sets the |sink| that gets the encoded frames. |rotation_applied| means
-  // that the source must support rotation. Only set |rotation_applied| if the
-  // remote side does not support the rotation extension.
-  void SetSink(EncoderSink* sink, bool rotation_applied);
-
-  // TODO(perkj): Can we remove VideoCodec.startBitrate ?
-  void SetStartBitrate(int start_bitrate_bps);
-
-  void SetBitrateObserver(VideoBitrateAllocationObserver* bitrate_observer);
-
-  void ConfigureEncoder(VideoEncoderConfig config,
-                        size_t max_data_payload_length,
-                        bool nack_enabled);
-
-  // Permanently stop encoding. After this method has returned, it is
-  // guaranteed that no encoded frames will be delivered to the sink.
-  void Stop();
-
-  void SendKeyFrame();
-
-  // virtual to test EncoderStateFeedback with mocks.
-  virtual void OnReceivedIntraFrameRequest(size_t stream_index);
-
-  void OnBitrateUpdated(uint32_t bitrate_bps,
-                        uint8_t fraction_lost,
-                        int64_t round_trip_time_ms);
-
- protected:
-  // Used for testing. For example the |ScalingObserverInterface| methods must
-  // be called on |encoder_queue_|.
-  rtc::TaskQueue* encoder_queue() { return &encoder_queue_; }
-
-  // webrtc::ScalingObserverInterface implementation.
-  // These methods are protected for easier testing.
-  void AdaptUp(AdaptReason reason) override;
-  void AdaptDown(AdaptReason reason) override;
-  static CpuOveruseOptions GetCpuOveruseOptions(bool full_overuse_time);
-
- private:
-  class ConfigureEncoderTask;
-  class EncodeTask;
-  class VideoSourceProxy;
-
-  class VideoFrameInfo {
-   public:
-    VideoFrameInfo(int width,
-                   int height,
-                   bool is_texture)
-        : width(width),
-          height(height),
-          is_texture(is_texture) {}
-    int width;
-    int height;
-    bool is_texture;
-    int pixel_count() const { return width * height; }
-  };
-
-  void ConfigureEncoderOnTaskQueue(VideoEncoderConfig config,
-                                   size_t max_data_payload_length,
-                                   bool nack_enabled);
-  void ReconfigureEncoder();
-
-  void ConfigureQualityScaler();
-
-  // Implements VideoSinkInterface.
-  void OnFrame(const VideoFrame& video_frame) override;
-
-  // Implements VideoSendStatisticsCallback.
-  void SendStatistics(uint32_t bit_rate,
-                      uint32_t frame_rate) override;
-
-  void EncodeVideoFrame(const VideoFrame& frame,
-                        int64_t time_when_posted_in_ms);
-
-  // Implements EncodedImageCallback.
-  EncodedImageCallback::Result OnEncodedImage(
-      const EncodedImage& encoded_image,
-      const CodecSpecificInfo* codec_specific_info,
-      const RTPFragmentationHeader* fragmentation) override;
-
-  void OnDroppedFrame() override;
-
-  bool EncoderPaused() const;
-  void TraceFrameDropStart();
-  void TraceFrameDropEnd();
-
-  // Class holding adaptation information.
-  class AdaptCounter final {
-   public:
-    AdaptCounter();
-    ~AdaptCounter();
-
-    // Get number of adaptation downscales for |reason|.
-    AdaptCounts Counts(int reason) const;
-
-    std::string ToString() const;
-
-    void IncrementFramerate(int reason);
-    void IncrementResolution(int reason);
-    void DecrementFramerate(int reason);
-    void DecrementResolution(int reason);
-    void DecrementFramerate(int reason, int cur_fps);
-
-    // Gets the total number of downgrades (for all adapt reasons).
-    int FramerateCount() const;
-    int ResolutionCount() const;
-
-    // Gets the total number of downgrades for |reason|.
-    int FramerateCount(int reason) const;
-    int ResolutionCount(int reason) const;
-    int TotalCount(int reason) const;
-
-   private:
-    std::string ToString(const std::vector<int>& counters) const;
-    int Count(const std::vector<int>& counters) const;
-    void MoveCount(std::vector<int>* counters, int from_reason);
-
-    // Degradation counters holding number of framerate/resolution reductions
-    // per adapt reason.
-    std::vector<int> fps_counters_;
-    std::vector<int> resolution_counters_;
-  };
-
-  AdaptCounter& GetAdaptCounter() RUN_ON(&encoder_queue_);
-  const AdaptCounter& GetConstAdaptCounter() RUN_ON(&encoder_queue_);
-  void UpdateAdaptationStats(AdaptReason reason) RUN_ON(&encoder_queue_);
-  AdaptCounts GetActiveCounts(AdaptReason reason) RUN_ON(&encoder_queue_);
-
-  rtc::Event shutdown_event_;
-
-  const uint32_t number_of_cores_;
-  // Counts how many frames we've dropped in the initial rampup phase.
-  int initial_rampup_;
-
-  const std::unique_ptr<VideoSourceProxy> source_proxy_;
-  EncoderSink* sink_;
-  const VideoSendStream::Config::EncoderSettings settings_;
-  const VideoCodecType codec_type_;
-
-  vcm::VideoSender video_sender_ ACCESS_ON(&encoder_queue_);
-  std::unique_ptr<OveruseFrameDetector> overuse_detector_
-      ACCESS_ON(&encoder_queue_);
-  std::unique_ptr<QualityScaler> quality_scaler_ ACCESS_ON(&encoder_queue_);
-
-  SendStatisticsProxy* const stats_proxy_;
-  rtc::VideoSinkInterface<VideoFrame>* const pre_encode_callback_;
-  ProcessThread* module_process_thread_;
-  rtc::ThreadChecker module_process_thread_checker_;
-  // |thread_checker_| checks that public methods that are related to lifetime
-  // of ViEEncoder are called on the same thread.
-  rtc::ThreadChecker thread_checker_;
-
-  VideoEncoderConfig encoder_config_ ACCESS_ON(&encoder_queue_);
-  std::unique_ptr<VideoBitrateAllocator> rate_allocator_
-      ACCESS_ON(&encoder_queue_);
-  // The maximum frame rate of the current codec configuration, as determined
-  // at the last ReconfigureEncoder() call.
-  int max_framerate_ ACCESS_ON(&encoder_queue_);
-
-  // Set when ConfigureEncoder has been called in order to lazy reconfigure the
-  // encoder on the next frame.
-  bool pending_encoder_reconfiguration_ ACCESS_ON(&encoder_queue_);
-  rtc::Optional<VideoFrameInfo> last_frame_info_ ACCESS_ON(&encoder_queue_);
-  int crop_width_ ACCESS_ON(&encoder_queue_);
-  int crop_height_ ACCESS_ON(&encoder_queue_);
-  uint32_t encoder_start_bitrate_bps_ ACCESS_ON(&encoder_queue_);
-  size_t max_data_payload_length_ ACCESS_ON(&encoder_queue_);
-  bool nack_enabled_ ACCESS_ON(&encoder_queue_);
-  uint32_t last_observed_bitrate_bps_ ACCESS_ON(&encoder_queue_);
-  bool encoder_paused_and_dropped_frame_ ACCESS_ON(&encoder_queue_);
-  Clock* const clock_;
-  // Counters used for deciding if the video resolution or framerate is
-  // currently restricted, and if so, why, on a per degradation preference
-  // basis.
-  // TODO(sprang): Replace this with a state holding a relative overuse measure
-  // instead, that can be translated into suitable down-scale or fps limit.
-  std::map<const VideoSendStream::DegradationPreference, AdaptCounter>
-      adapt_counters_ ACCESS_ON(&encoder_queue_);
-  // Set depending on degradation preferences.
-  VideoSendStream::DegradationPreference degradation_preference_
-      ACCESS_ON(&encoder_queue_);
-
-  struct AdaptationRequest {
-    // The pixel count produced by the source at the time of the adaptation.
-    int input_pixel_count_;
-    // Framerate received from the source at the time of the adaptation.
-    int framerate_fps_;
-    // Indicates if request was to adapt up or down.
-    enum class Mode { kAdaptUp, kAdaptDown } mode_;
-  };
-  // Stores a snapshot of the last adaptation request triggered by an AdaptUp
-  // or AdaptDown signal.
-  rtc::Optional<AdaptationRequest> last_adaptation_request_
-      ACCESS_ON(&encoder_queue_);
-
-  rtc::RaceChecker incoming_frame_race_checker_
-      GUARDED_BY(incoming_frame_race_checker_);
-  Atomic32 posted_frames_waiting_for_encode_;
-  // Used to make sure incoming time stamp is increasing for every frame.
-  int64_t last_captured_timestamp_ GUARDED_BY(incoming_frame_race_checker_);
-  // Delta used for translating between NTP and internal timestamps.
-  const int64_t delta_ntp_internal_ms_ GUARDED_BY(incoming_frame_race_checker_);
-
-  int64_t last_frame_log_ms_ GUARDED_BY(incoming_frame_race_checker_);
-  int captured_frame_count_ ACCESS_ON(&encoder_queue_);
-  int dropped_frame_count_ ACCESS_ON(&encoder_queue_);
-
-  VideoBitrateAllocationObserver* bitrate_observer_ ACCESS_ON(&encoder_queue_);
-  rtc::Optional<int64_t> last_parameters_update_ms_ ACCESS_ON(&encoder_queue_);
-
-  // All public methods are proxied to |encoder_queue_|. It must must be
-  // destroyed first to make sure no tasks are run that use other members.
-  rtc::TaskQueue encoder_queue_;
-
-  RTC_DISALLOW_COPY_AND_ASSIGN(ViEEncoder);
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_VIDEO_VIE_ENCODER_H_