ObjC: Implement HW codecs in ObjC instead of C++

webrtc/sdk/objc/Framework/Classes/VideoToolbox/decoder.h

Index: webrtc/sdk/objc/Framework/Classes/VideoToolbox/decoder.h
diff --git a/webrtc/sdk/objc/Framework/Classes/VideoToolbox/decoder.h b/webrtc/sdk/objc/Framework/Classes/VideoToolbox/decoder.h
deleted file mode 100644
index f2252da806c340fc68318e3887c5f0901e2afcde..0000000000000000000000000000000000000000
--- a/webrtc/sdk/objc/Framework/Classes/VideoToolbox/decoder.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- *  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.
- *
- */
-
-#ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEOTOOLBOX_DECODER_H_
-#define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEOTOOLBOX_DECODER_H_
-
-#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
-
-#include <VideoToolbox/VideoToolbox.h>
-
-// This file provides a H264 encoder implementation using the VideoToolbox
-// APIs. Since documentation is almost non-existent, this is largely based on
-// the information in the VideoToolbox header files, a talk from WWDC 2014 and
-// experimentation.
-
-namespace webrtc {
-
-class H264VideoToolboxDecoder : public H264Decoder {
- public:
-  H264VideoToolboxDecoder();
-
-  ~H264VideoToolboxDecoder() override;
-
-  int InitDecode(const VideoCodec* video_codec, int number_of_cores) override;
-
-  int Decode(const EncodedImage& input_image,
-             bool missing_frames,
-             const RTPFragmentationHeader* fragmentation,
-             const CodecSpecificInfo* codec_specific_info,
-             int64_t render_time_ms) override;
-
-  int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
-
-  int Release() override;
-
-  const char* ImplementationName() const override;
-
- private:
-  int ResetDecompressionSession();
-  void ConfigureDecompressionSession();
-  void DestroyDecompressionSession();
-  void SetVideoFormat(CMVideoFormatDescriptionRef video_format);
-
-  DecodedImageCallback* callback_;
-  CMVideoFormatDescriptionRef video_format_;
-  VTDecompressionSessionRef decompression_session_;
-};  // H264VideoToolboxDecoder
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEOTOOLBOX_DECODER_H_