Refactoring full stack and loopback tests

webrtc/video/loopback.h

-/*
- *  Copyright (c) 2015 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.
- */
-
-#include <string>
-
-#include "webrtc/config.h"
-
-namespace webrtc {
-
-class VideoSendStream;
-class Clock;
-
-namespace test {
-
-class VideoCapturer;
-
-class Loopback {
- public:
-  struct Config {
-    size_t width;
-    size_t height;
-    int32_t fps;
-    size_t min_bitrate_kbps;
-    size_t start_bitrate_kbps;
-    size_t max_bitrate_kbps;
-    int32_t min_transmit_bitrate_kbps;
-    std::string codec;
-    size_t num_temporal_layers;
-    size_t num_spatial_layers;
-    // Discard all temporal/spatial layers with id greater or equal the
-    // threshold. 0 to disable.
-    size_t tl_discard_threshold;
-    size_t sl_discard_threshold;
-    int32_t loss_percent;
-    int32_t link_capacity_kbps;
-    int32_t queue_size;
-    int32_t avg_propagation_delay_ms;
-    int32_t std_propagation_delay_ms;
-    bool logs;
-  };
-
-  explicit Loopback(const Config& config);
-  virtual ~Loopback();
-
-  void Run();
-
- protected:
-  virtual VideoEncoderConfig CreateEncoderConfig();
-  virtual VideoCapturer* CreateCapturer(VideoSendStream* send_stream);
-
-  const Config config_;
-  Clock* const clock_;
-};
-
-}  // namespace test
-}  // namespace webrtc