Move VideoDecoderSoftwareFallbackWrapper from webrtc/video_decoder.h to webrtc/media/engine/

webrtc/video_decoder.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.
  */
 
@@ skipping 65 matching lines @@
   virtual int32_t Release() = 0;
 
   // Returns true if the decoder prefer to decode frames late.
   // That is, it can not decode infinite number of frames before the decoded
   // frame is consumed.
   virtual bool PrefersLateDecoding() const { return true; }
 
   virtual const char* ImplementationName() const { return "unknown"; }
 };
 
-// Class used to wrap external VideoDecoders to provide a fallback option on
-// software decoding when a hardware decoder fails to decode a stream due to
-// hardware restrictions, such as max resolution.
-class VideoDecoderSoftwareFallbackWrapper : public webrtc::VideoDecoder {
- public:
-  VideoDecoderSoftwareFallbackWrapper(VideoCodecType codec_type,
-                                      VideoDecoder* decoder);
-
-  int32_t InitDecode(const VideoCodec* codec_settings,
-                     int32_t number_of_cores) override;
-
-  int32_t Decode(const EncodedImage& input_image,
-                 bool missing_frames,
-                 const RTPFragmentationHeader* fragmentation,
-                 const CodecSpecificInfo* codec_specific_info,
-                 int64_t render_time_ms) override;
-
-  int32_t RegisterDecodeCompleteCallback(
-      DecodedImageCallback* callback) override;
-
-  int32_t Release() override;
-  bool PrefersLateDecoding() const override;
-
-  const char* ImplementationName() const override;
-
- private:
-  bool InitFallbackDecoder();
-
-  const DecoderType decoder_type_;
-  VideoDecoder* const decoder_;
-
-  VideoCodec codec_settings_;
-  int32_t number_of_cores_;
-  std::string fallback_implementation_name_;
-  std::unique_ptr<VideoDecoder> fallback_decoder_;
-  DecodedImageCallback* callback_;
-};
-
 // Video decoder class to be used for unknown codecs. Doesn't support decoding
 // but logs messages to LS_ERROR.
 class NullVideoDecoder : public VideoDecoder {
  public:
   NullVideoDecoder();
 
   int32_t InitDecode(const VideoCodec* codec_settings,
                      int32_t number_of_cores) override;
 
   int32_t Decode(const EncodedImage& input_image,
                  bool missing_frames,
                  const RTPFragmentationHeader* fragmentation,
                  const CodecSpecificInfo* codec_specific_info,
                  int64_t render_time_ms) override;
 
   int32_t RegisterDecodeCompleteCallback(
       DecodedImageCallback* callback) override;
 
   int32_t Release() override;
 
   const char* ImplementationName() const override;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_DECODER_H_