webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.h
Mirko Bonadei bb547203bf Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}
2017-09-15 04:25:06 +00:00

49 lines
2 KiB
Objective-C

/*
* Copyright 2016 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.
*/
#import <AVFoundation/AVFoundation.h>
#import <Foundation/Foundation.h>
#ifdef __cplusplus
#include "avfoundationvideocapturer.h"
#endif
NS_ASSUME_NONNULL_BEGIN
// This class is an implementation detail of AVFoundationVideoCapturer and handles
// the ObjC integration with the AVFoundation APIs.
// It is meant to be owned by an instance of AVFoundationVideoCapturer.
// The reason for this is because other webrtc objects own cricket::VideoCapturer, which is not
// ref counted. To prevent bad behavior we do not expose this class directly.
@interface RTCAVFoundationVideoCapturerInternal
: NSObject <AVCaptureVideoDataOutputSampleBufferDelegate>
@property(nonatomic, readonly) AVCaptureSession *captureSession;
@property(nonatomic, readonly) dispatch_queue_t frameQueue;
@property(nonatomic, readonly) BOOL canUseBackCamera;
@property(nonatomic, assign) BOOL useBackCamera; // Defaults to NO.
@property(atomic, assign) BOOL isRunning; // Whether the capture session is running.
@property(atomic, assign) BOOL hasStarted; // Whether we have an unmatched start.
// We keep a pointer back to AVFoundationVideoCapturer to make callbacks on it
// when we receive frames. This is safe because this object should be owned by
// it.
- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer *)capturer;
- (AVCaptureDevice *)getActiveCaptureDevice;
- (nullable AVCaptureDevice *)frontCaptureDevice;
- (nullable AVCaptureDevice *)backCaptureDevice;
// Starts and stops the capture session asynchronously. We cannot do this
// synchronously without blocking a WebRTC thread.
- (void)start;
- (void)stop;
@end
NS_ASSUME_NONNULL_END