1 /*
2  *  Copyright 2017 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #import <Foundation/Foundation.h>
12 
13 #import "RTCVideoCapturer.h"
14 
15 NS_ASSUME_NONNULL_BEGIN
16 
17 /**
18  * Error passing block.
19  */
20 typedef void (^RTCFileVideoCapturerErrorBlock)(NSError *error);
21 
22 /**
23  * Captures buffers from bundled video file.
24  *
25  * See @c RTCVideoCapturer for more info on capturers.
26  */
27 RTC_OBJC_EXPORT
28 
29 NS_CLASS_AVAILABLE_IOS(10)
30 @interface RTC_OBJC_TYPE (RTCFileVideoCapturer) : RTC_OBJC_TYPE(RTCVideoCapturer)
31 
32 /**
33  * Starts asynchronous capture of frames from video file.
34  *
35  * Capturing is not started if error occurs. Underlying error will be
36  * relayed in the errorBlock if one is provided.
37  * Successfully captured video frames will be passed to the delegate.
38  *
39  * @param nameOfFile The name of the bundled video file to be read.
40  * @errorBlock block to be executed upon error.
41  */
42 - (void)startCapturingFromFileNamed:(NSString *)nameOfFile
43                             onError:(__nullable RTCFileVideoCapturerErrorBlock)errorBlock;
44 
45 /**
46  * Immediately stops capture.
47  */
48 - (void)stopCapture;
49 @end
50 
51 NS_ASSUME_NONNULL_END
52