Implement H264 codec in Objective-C classes.

webrtc/modules/video_coding/codecs/test/objc_codec_h264_test.h

+/*
+ *  Copyright 2017 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_CODECS_TEST_OBJC_CODEC_H264_TEST_H_
+#define WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_OBJC_CODEC_H264_TEST_H_
+
+#include "webrtc/media/engine/webrtcvideodecoderfactory.h"
+#include "webrtc/media/engine/webrtcvideoencoderfactory.h"
+
+namespace webrtc {
+
+/** Wrap ObjCVideoEncoderFactory in a header that can be used from pure C++ */
+class ObjCVideoEncoderFactoryWrapper {
+ public:
+  ObjCVideoEncoderFactoryWrapper();
+  ~ObjCVideoEncoderFactoryWrapper();
+
+  cricket::WebRtcVideoEncoderFactory* wrapped_encoder_factory() const;
+
+ private:
+  cricket::WebRtcVideoEncoderFactory* encoder_factory_;
+};
+
+/** Wrap ObjCVideoDecoderFactory in a header that can be used from pure C++ */
+class ObjCVideoDecoderFactoryWrapper {
+ public:
+  ObjCVideoDecoderFactoryWrapper();
+  ~ObjCVideoDecoderFactoryWrapper();
+
+  cricket::WebRtcVideoDecoderFactory* wrapped_decoder_factory() const;
+
+ private:
+  cricket::WebRtcVideoDecoderFactory* decoder_factory_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_OBJC_CODEC_H264_TEST_H_