iOS HW H264 support.

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 21 matching lines @@
   virtual int32_t ReceivedDecodedReferenceFrame(const uint64_t pictureId) {
     return -1;
   }
 
   virtual int32_t ReceivedDecodedFrame(const uint64_t pictureId) { return -1; }
 };
 
 class VideoDecoder {
  public:
   enum DecoderType {
+    kH264,
     kVp8,
     kVp9,
     kUnsupportedCodec,
   };
 
   static VideoDecoder* Create(DecoderType codec_type);
 
   virtual ~VideoDecoder() {}
 
   virtual int32_t InitDecode(const VideoCodec* codec_settings,
@@ skipping 43 matching lines @@
 
   VideoCodec codec_settings_;
   int32_t number_of_cores_;
   rtc::scoped_ptr<VideoDecoder> fallback_decoder_;
   DecodedImageCallback* callback_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_DECODER_H_