Remove webrtc::VideoEncoderFactory

webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.h

-/*
- *  Copyright (c) 2014 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_MODULES_VIDEO_CODING_CODECS_VP8_SIMULCAST_ENCODER_ADAPTER_H_
-#define WEBRTC_MODULES_VIDEO_CODING_CODECS_VP8_SIMULCAST_ENCODER_ADAPTER_H_
-
-#include <memory>
-#include <stack>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h"
-#include "webrtc/rtc_base/atomicops.h"
-#include "webrtc/rtc_base/sequenced_task_checker.h"
-
-namespace webrtc {
-
-class SimulcastRateAllocator;
-
-// TODO(brandtr): Remove this class and replace its use with a
-// WebRtcVideoEncoderFactory.
-class VideoEncoderFactory {
- public:
-  virtual VideoEncoder* Create() = 0;
-  virtual void Destroy(VideoEncoder* encoder) = 0;
-  virtual ~VideoEncoderFactory() {}
-};
-
-// SimulcastEncoderAdapter implements simulcast support by creating multiple
-// webrtc::VideoEncoder instances with the given VideoEncoderFactory.
-// The object is created and destroyed on the worker thread, but all public
-// interfaces should be called from the encoder task queue.
-class SimulcastEncoderAdapter : public VP8Encoder {
- public:
-  // TODO(brandtr): Make it clear that the ownership of |factory| is transferred
-  // by only accepting a std::unique_ptr<VideoEncoderFactory> here.
-  explicit SimulcastEncoderAdapter(VideoEncoderFactory* factory);
-  virtual ~SimulcastEncoderAdapter();
-
-  // Implements VideoEncoder.
-  int Release() override;
-  int InitEncode(const VideoCodec* inst,
-                 int number_of_cores,
-                 size_t max_payload_size) override;
-  int Encode(const VideoFrame& input_image,
-             const CodecSpecificInfo* codec_specific_info,
-             const std::vector<FrameType>* frame_types) override;
-  int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
-  int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
-  int SetRateAllocation(const BitrateAllocation& bitrate,
-                        uint32_t new_framerate) override;
-
-  // Eventual handler for the contained encoders' EncodedImageCallbacks, but
-  // called from an internal helper that also knows the correct stream
-  // index.
-  EncodedImageCallback::Result OnEncodedImage(
-      size_t stream_idx,
-      const EncodedImage& encoded_image,
-      const CodecSpecificInfo* codec_specific_info,
-      const RTPFragmentationHeader* fragmentation);
-
-  VideoEncoder::ScalingSettings GetScalingSettings() const override;
-
-  bool SupportsNativeHandle() const override;
-  const char* ImplementationName() const override;
-
- private:
-  struct StreamInfo {
-    StreamInfo(VideoEncoder* encoder,
-               std::unique_ptr<EncodedImageCallback> callback,
-               uint16_t width,
-               uint16_t height,
-               bool send_stream)
-        : encoder(encoder),
-          callback(std::move(callback)),
-          width(width),
-          height(height),
-          key_frame_request(false),
-          send_stream(send_stream) {}
-    // Deleted by SimulcastEncoderAdapter::DestroyStoredEncoders().
-    VideoEncoder* encoder;
-    std::unique_ptr<EncodedImageCallback> callback;
-    uint16_t width;
-    uint16_t height;
-    bool key_frame_request;
-    bool send_stream;
-  };
-
-  // Populate the codec settings for each simulcast stream.
-  static void PopulateStreamCodec(const webrtc::VideoCodec& inst,
-                                  int stream_index,
-                                  uint32_t start_bitrate_kbps,
-                                  bool highest_resolution_stream,
-                                  webrtc::VideoCodec* stream_codec);
-
-  bool Initialized() const;
-
-  void DestroyStoredEncoders();
-
-  volatile int inited_;  // Accessed atomically.
-  const std::unique_ptr<VideoEncoderFactory> factory_;
-  VideoCodec codec_;
-  std::vector<StreamInfo> streaminfos_;
-  EncodedImageCallback* encoded_complete_callback_;
-  std::string implementation_name_;
-
-  // Used for checking the single-threaded access of the encoder interface.
-  rtc::SequencedTaskChecker encoder_queue_;
-
-  // Store encoders in between calls to Release and InitEncode, so they don't
-  // have to be recreated. Remaining encoders are destroyed by the destructor.
-  std::stack<VideoEncoder*> stored_encoders_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_VP8_SIMULCAST_ENCODER_ADAPTER_H_