Reland of Split iOS sdk in to separate targets

webrtc/sdk/objc/Framework/Classes/Video/avfoundationvideocapturer.h

Index: webrtc/sdk/objc/Framework/Classes/Video/avfoundationvideocapturer.h
diff --git a/webrtc/sdk/objc/Framework/Classes/Video/avfoundationvideocapturer.h b/webrtc/sdk/objc/Framework/Classes/Video/avfoundationvideocapturer.h
new file mode 100644
index 0000000000000000000000000000000000000000..45161b6d8376b4e27d54029a33e07f4ceaf790b3
--- /dev/null
+++ b/webrtc/sdk/objc/Framework/Classes/Video/avfoundationvideocapturer.h
@@ -0,0 +1,72 @@
+/*
+ *  Copyright 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_VIDEO_AVFOUNDATIONVIDEOCAPTURER_H_
+#define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEO_AVFOUNDATIONVIDEOCAPTURER_H_
+
+#import <AVFoundation/AVFoundation.h>
+
+#include "webrtc/api/video/video_frame.h"
+#include "webrtc/common_video/include/i420_buffer_pool.h"
+#include "webrtc/media/base/videocapturer.h"
+
+@class RTCAVFoundationVideoCapturerInternal;
+
+namespace rtc {
+class Thread;
+}  // namespace rtc
+
+namespace webrtc {
+
+class AVFoundationVideoCapturer : public cricket::VideoCapturer {
+ public:
+  AVFoundationVideoCapturer();
+  ~AVFoundationVideoCapturer();
+
+  cricket::CaptureState Start(const cricket::VideoFormat& format) override;
+  void Stop() override;
+  bool IsRunning() override;
+  bool IsScreencast() const override {
+    return false;
+  }
+  bool GetPreferredFourccs(std::vector<uint32_t> *fourccs) override {
+    fourccs->push_back(cricket::FOURCC_NV12);
+    return true;
+  }
+
+  // Returns the active capture session. Calls to the capture session should
+  // occur on the RTCDispatcherTypeCaptureSession queue in RTCDispatcher.
+  AVCaptureSession* GetCaptureSession();
+
+  // Returns whether the rear-facing camera can be used.
+  // e.g. It can't be used because it doesn't exist.
+  bool CanUseBackCamera() const;
+
+  // Switches the camera being used (either front or back).
+  void SetUseBackCamera(bool useBackCamera);
+  bool GetUseBackCamera() const;
+
+  // Converts the sample buffer into a cricket::CapturedFrame and signals the
+  // frame for capture.
+  void CaptureSampleBuffer(CMSampleBufferRef sample_buffer,
+                           webrtc::VideoRotation rotation);
+
+  // Called to adjust the size of output frames to supplied |width| and
+  // |height|. Also drops frames to make the output match |fps|.
+  void AdaptOutputFormat(int width, int height, int fps);
+
+ private:
+  RTCAVFoundationVideoCapturerInternal *_capturer;
+  webrtc::I420BufferPool _buffer_pool;
+};  // AVFoundationVideoCapturer
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEO_AVFOUNDATIONVIDEOCAPTURER_H_