1 /*
2  * libjingle
3  * Copyright 2015 Google Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  *  1. Redistributions of source code must retain the above copyright notice,
9  *     this list of conditions and the following disclaimer.
10  *  2. Redistributions in binary form must reproduce the above copyright notice,
11  *     this list of conditions and the following disclaimer in the documentation
12  *     and/or other materials provided with the distribution.
13  *  3. The name of the author may not be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #import "RTCVideoSource.h"
29 
30 @class AVCaptureSession;
31 @class RTCMediaConstraints;
32 @class RTCPeerConnectionFactory;
33 
34 // RTCAVFoundationVideoSource is a video source that uses
35 // webrtc::AVFoundationVideoCapturer. We do not currently provide a wrapper for
36 // that capturer because cricket::VideoCapturer is not ref counted and we cannot
37 // guarantee its lifetime. Instead, we expose its properties through the ref
38 // counted video source interface.
39 @interface RTCAVFoundationVideoSource : RTCVideoSource
40 
41 - (instancetype)initWithFactory:(RTCPeerConnectionFactory*)factory
42                     constraints:(RTCMediaConstraints*)constraints;
43 
44 // Switches the camera being used (either front or back).
45 @property(nonatomic, assign) BOOL useBackCamera;
46 // Returns the active capture session.
47 @property(nonatomic, readonly) AVCaptureSession* captureSession;
48 
49 @end
50