Split avfoundationcapturer classes in separate files.

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

 /*
  *  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_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
 #define WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
 
 #import <AVFoundation/AVFoundation.h>
 
 #include "webrtc/common_video/include/i420_buffer_pool.h"
 #include "webrtc/media/base/videocapturer.h"
 #include "webrtc/video_frame.h"
 
 @class RTCAVFoundationVideoCapturerInternal;
 
 namespace rtc {
 class Thread;
 }  // namespace rtc
 
+// Sets device format for the provided capture device. Returns YES/NO depending
+// on success.
+// TODO(denicija): When this file is split this static method should be
+// reconsidered.
+// Perhaps adding a category on AVCaptureDevice would be better.
+BOOL SetFormatForCaptureDevice(AVCaptureDevice* device,

[magjed_webrtc, 2016/11/10 13:22:45]

You are not allowed to add stuff to the global namespace, so I would make this a
static function in AVFoundationVideoCapturer if you want to test it.

[daniela-webrtc, 2016/11/11 13:23:10]

Done.

+                               AVCaptureSession* session,
+                               const cricket::VideoFormat& format);
+
 namespace webrtc {
 
 class AVFoundationVideoCapturer : public cricket::VideoCapturer {
  public:
   AVFoundationVideoCapturer();
   ~AVFoundationVideoCapturer();
 
   cricket::CaptureState Start(const cricket::VideoFormat& format) override;
   void Stop() override;
   bool IsRunning() override;
@@ skipping 23 matching lines @@
                            webrtc::VideoRotation rotation);
 
  private:
   RTCAVFoundationVideoCapturerInternal *_capturer;
   webrtc::I420BufferPool _buffer_pool;
 };  // AVFoundationVideoCapturer
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_