Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

modules/video_coding/generic_encoder.h

@@ -0,0 +1,130 @@
+/*
+ *  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_MODULES_VIDEO_CODING_GENERIC_ENCODER_H_
+#define WEBRTC_MODULES_VIDEO_CODING_GENERIC_ENCODER_H_
+
+#include <stdio.h>
+#include <map>
+#include <vector>
+
+#include "webrtc/modules/video_coding/include/video_codec_interface.h"
+#include "webrtc/modules/video_coding/include/video_coding_defines.h"
+
+#include "webrtc/rtc_base/criticalsection.h"
+#include "webrtc/rtc_base/race_checker.h"
+
+namespace webrtc {
+
+namespace media_optimization {
+class MediaOptimization;
+}  // namespace media_optimization
+
+struct EncoderParameters {
+  BitrateAllocation target_bitrate;
+  uint8_t loss_rate;
+  int64_t rtt;
+  uint32_t input_frame_rate;
+};
+
+class VCMEncodedFrameCallback : public EncodedImageCallback {
+ public:
+  VCMEncodedFrameCallback(EncodedImageCallback* post_encode_callback,
+                          media_optimization::MediaOptimization* media_opt);
+  virtual ~VCMEncodedFrameCallback();
+
+  // Implements EncodedImageCallback.
+  EncodedImageCallback::Result OnEncodedImage(
+      const EncodedImage& encoded_image,
+      const CodecSpecificInfo* codec_specific_info,
+      const RTPFragmentationHeader* fragmentation) override;
+
+  void SetInternalSource(bool internal_source) {
+    internal_source_ = internal_source;
+  }
+
+  // Timing frames configuration methods. These 4 should be called before
+  // |OnEncodedImage| at least once.
+  void OnTargetBitrateChanged(size_t bitrate_bytes_per_sec,
+                              size_t simulcast_svc_idx);
+
+  void OnFrameRateChanged(size_t framerate);
+
+  void OnEncodeStarted(int64_t capture_time_ms, size_t simulcast_svc_idx);
+
+  void SetTimingFramesThresholds(
+      const VideoCodec::TimingFrameTriggerThresholds& thresholds) {
+    rtc::CritScope crit(&timing_params_lock_);
+    timing_frames_thresholds_ = thresholds;
+  }
+
+ private:
+  rtc::CriticalSection timing_params_lock_;
+  bool internal_source_;
+  EncodedImageCallback* const post_encode_callback_;
+  media_optimization::MediaOptimization* const media_opt_;
+
+  struct TimingFramesLayerInfo {
+    size_t target_bitrate_bytes_per_sec = 0;
+    std::map<int64_t, int64_t> encode_start_time_ms;
+  };
+  // Separate instance for each simulcast stream or spatial layer.
+  std::vector<TimingFramesLayerInfo> timing_frames_info_
+      RTC_GUARDED_BY(timing_params_lock_);
+  size_t framerate_ RTC_GUARDED_BY(timing_params_lock_);
+  int64_t last_timing_frame_time_ms_ RTC_GUARDED_BY(timing_params_lock_);
+  VideoCodec::TimingFrameTriggerThresholds timing_frames_thresholds_
+      RTC_GUARDED_BY(timing_params_lock_);
+
+  // Experiment groups parsed from field trials for realtime video ([0]) and
+  // screenshare ([1]). 0 means no group specified. Positive values are
+  // experiment group numbers incremented by 1.
+  uint8_t experiment_groups_[2];
+};
+
+class VCMGenericEncoder {
+  friend class VCMCodecDataBase;
+
+ public:
+  VCMGenericEncoder(VideoEncoder* encoder,
+                    VCMEncodedFrameCallback* encoded_frame_callback,
+                    bool internal_source);
+  ~VCMGenericEncoder();
+  int32_t Release();
+  int32_t InitEncode(const VideoCodec* settings,
+                     int32_t number_of_cores,
+                     size_t max_payload_size);
+  int32_t Encode(const VideoFrame& frame,
+                 const CodecSpecificInfo* codec_specific,
+                 const std::vector<FrameType>& frame_types);
+
+  void SetEncoderParameters(const EncoderParameters& params);
+  EncoderParameters GetEncoderParameters() const;
+
+  int32_t SetPeriodicKeyFrames(bool enable);
+  int32_t RequestFrame(const std::vector<FrameType>& frame_types);
+  bool InternalSource() const;
+  void OnDroppedFrame();
+  bool SupportsNativeHandle() const;
+
+ private:
+  rtc::RaceChecker race_checker_;
+
+  VideoEncoder* const encoder_ RTC_GUARDED_BY(race_checker_);
+  VCMEncodedFrameCallback* const vcm_encoded_frame_callback_;
+  const bool internal_source_;
+  rtc::CriticalSection params_lock_;
+  EncoderParameters encoder_params_ RTC_GUARDED_BY(params_lock_);
+  size_t streams_or_svc_num_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_VIDEO_CODING_GENERIC_ENCODER_H_