| Index: webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h
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| diff --git a/webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h b/webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..09aa7db9aea58785ff2e431141539d23310476ee
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| --- /dev/null
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| +++ b/webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h
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| @@ -0,0 +1,97 @@
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| +/*
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| + *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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| + *
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| + *  Use of this source code is governed by a BSD-style license
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| + *  that can be found in the LICENSE file in the root of the source
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| + *  tree. An additional intellectual property rights grant can be found
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| + *  in the file PATENTS.  All contributing project authors may
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| + *  be found in the AUTHORS file in the root of the source tree.
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| + *
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| + */
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| +
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| +#ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_
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| +#define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_
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| +
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| +#include "webrtc/api/video/video_rotation.h"
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| +#include "webrtc/base/criticalsection.h"
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| +#include "webrtc/common_video/h264/h264_bitstream_parser.h"
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| +#include "webrtc/common_video/include/bitrate_adjuster.h"
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| +#include "webrtc/media/base/codec.h"
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| +#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
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| +#include "webrtc/modules/video_coding/utility/quality_scaler.h"
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| +
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| +#include <VideoToolbox/VideoToolbox.h>
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| +#include <vector>
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| +
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| +// This file provides a H264 encoder implementation using the VideoToolbox
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| +// APIs. Since documentation is almost non-existent, this is largely based on
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| +// the information in the VideoToolbox header files, a talk from WWDC 2014 and
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| +// experimentation.
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| +
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| +namespace webrtc {
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| +
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| +class H264VideoToolboxEncoder : public H264Encoder {
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| + public:
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| +  explicit H264VideoToolboxEncoder(const cricket::VideoCodec& codec);
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| +
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| +  ~H264VideoToolboxEncoder() override;
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| +
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| +  int InitEncode(const VideoCodec* codec_settings,
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| +                 int number_of_cores,
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| +                 size_t max_payload_size) override;
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| +
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| +  int Encode(const VideoFrame& input_image,
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| +             const CodecSpecificInfo* codec_specific_info,
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| +             const std::vector<FrameType>* frame_types) override;
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| +
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| +  int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
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| +
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| +  int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
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| +
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| +  int SetRates(uint32_t new_bitrate_kbit, uint32_t frame_rate) override;
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| +
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| +  int Release() override;
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| +
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| +  const char* ImplementationName() const override;
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| +
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| +  bool SupportsNativeHandle() const override;
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| +
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| +  void OnEncodedFrame(OSStatus status,
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| +                      VTEncodeInfoFlags info_flags,
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| +                      CMSampleBufferRef sample_buffer,
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| +                      CodecSpecificInfo codec_specific_info,
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| +                      int32_t width,
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| +                      int32_t height,
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| +                      int64_t render_time_ms,
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| +                      uint32_t timestamp,
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| +                      VideoRotation rotation);
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| +
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| +  ScalingSettings GetScalingSettings() const override;
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| +
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| + private:
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| +  int ResetCompressionSession();
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| +  void ConfigureCompressionSession();
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| +  void DestroyCompressionSession();
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| +  rtc::scoped_refptr<VideoFrameBuffer> GetScaledBufferOnEncode(
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| +      const rtc::scoped_refptr<VideoFrameBuffer>& frame);
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| +  void SetBitrateBps(uint32_t bitrate_bps);
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| +  void SetEncoderBitrateBps(uint32_t bitrate_bps);
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| +
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| +  EncodedImageCallback* callback_;
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| +  VTCompressionSessionRef compression_session_;
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| +  BitrateAdjuster bitrate_adjuster_;
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| +  H264PacketizationMode packetization_mode_;
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| +  uint32_t target_bitrate_bps_;
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| +  uint32_t encoder_bitrate_bps_;
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| +  int32_t width_;
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| +  int32_t height_;
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| +  VideoCodecMode mode_;
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| +  const CFStringRef profile_;
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| +
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| +  H264BitstreamParser h264_bitstream_parser_;
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| +  std::vector<uint8_t> nv12_scale_buffer_;
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| +};  // H264VideoToolboxEncoder
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| +
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| +}  // namespace webrtc
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| +
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| +#endif // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_
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| 
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