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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // AVFoundation API is only introduced in Mac OS X > 10.6, and there is only one | |
6 // build of Chromium, so the (potential) linking with AVFoundation has to happen | |
7 // in runtime. For this to be clean, an AVFoundationGlue class is defined to try | |
8 // and load these AVFoundation system libraries. If it succeeds, subsequent | |
9 // clients can use AVFoundation via the rest of the classes declared in this | |
10 // file. | |
11 | |
12 #ifndef MEDIA_VIDEO_CAPTURE_MAC_AVFOUNDATION_GLUE_H_ | |
13 #define MEDIA_VIDEO_CAPTURE_MAC_AVFOUNDATION_GLUE_H_ | |
14 | |
15 #import <Foundation/Foundation.h> | |
16 | |
17 #include "base/basictypes.h" | |
18 #include "media/base/media_export.h" | |
19 #import "media/video/capture/mac/coremedia_glue.h" | |
20 | |
21 class MEDIA_EXPORT AVFoundationGlue { | |
22 public: | |
23 // This method returns true if the OS version supports AVFoundation and the | |
24 // AVFoundation bundle could be loaded correctly, or false otherwise. | |
25 static bool IsAVFoundationSupported(); | |
26 | |
27 static NSBundle const* AVFoundationBundle(); | |
28 | |
29 static void* AVFoundationLibraryHandle(); | |
30 | |
31 // Originally coming from AVCaptureDevice.h but in global namespace. | |
32 static NSString* AVCaptureDeviceWasConnectedNotification(); | |
33 static NSString* AVCaptureDeviceWasDisconnectedNotification(); | |
34 | |
35 // Originally coming from AVMediaFormat.h but in global namespace. | |
36 static NSString* AVMediaTypeVideo(); | |
37 static NSString* AVMediaTypeAudio(); | |
38 static NSString* AVMediaTypeMuxed(); | |
39 | |
40 // Originally from AVCaptureSession.h but in global namespace. | |
41 static NSString* AVCaptureSessionRuntimeErrorNotification(); | |
42 static NSString* AVCaptureSessionDidStopRunningNotification(); | |
43 static NSString* AVCaptureSessionErrorKey(); | |
44 | |
45 // Originally from AVVideoSettings.h but in global namespace. | |
46 static NSString* AVVideoScalingModeKey(); | |
47 static NSString* AVVideoScalingModeResizeAspectFill(); | |
48 | |
49 static Class AVCaptureSessionClass(); | |
50 static Class AVCaptureVideoDataOutputClass(); | |
51 | |
52 private: | |
53 DISALLOW_IMPLICIT_CONSTRUCTORS(AVFoundationGlue); | |
54 }; | |
55 | |
56 // Originally AVCaptureDevice and coming from AVCaptureDevice.h | |
57 MEDIA_EXPORT | |
58 @interface CrAVCaptureDevice : NSObject | |
59 | |
60 - (BOOL)hasMediaType:(NSString*)mediaType; | |
61 - (NSString*)uniqueID; | |
62 - (NSString*)localizedName; | |
63 - (BOOL)isSuspended; | |
64 - (NSArray*)formats; | |
65 - (int32_t)transportType; | |
66 | |
67 @end | |
68 | |
69 // Originally AVCaptureDeviceFormat and coming from AVCaptureDevice.h. | |
70 MEDIA_EXPORT | |
71 @interface CrAVCaptureDeviceFormat : NSObject | |
72 | |
73 - (CoreMediaGlue::CMFormatDescriptionRef)formatDescription; | |
74 - (NSArray*)videoSupportedFrameRateRanges; | |
75 | |
76 @end | |
77 | |
78 // Originally AVFrameRateRange and coming from AVCaptureDevice.h. | |
79 MEDIA_EXPORT | |
80 @interface CrAVFrameRateRange : NSObject | |
81 | |
82 - (Float64)maxFrameRate; | |
83 | |
84 @end | |
85 | |
86 MEDIA_EXPORT | |
87 @interface CrAVCaptureInput // Originally from AVCaptureInput.h. | |
88 @end | |
89 | |
90 MEDIA_EXPORT | |
91 @interface CrAVCaptureOutput // Originally from AVCaptureOutput.h. | |
92 @end | |
93 | |
94 // Originally AVCaptureSession and coming from AVCaptureSession.h. | |
95 MEDIA_EXPORT | |
96 @interface CrAVCaptureSession : NSObject | |
97 | |
98 - (void)release; | |
99 - (void)addInput:(CrAVCaptureInput*)input; | |
100 - (void)removeInput:(CrAVCaptureInput*)input; | |
101 - (void)addOutput:(CrAVCaptureOutput*)output; | |
102 - (void)removeOutput:(CrAVCaptureOutput*)output; | |
103 - (BOOL)isRunning; | |
104 - (void)startRunning; | |
105 - (void)stopRunning; | |
106 | |
107 @end | |
108 | |
109 // Originally AVCaptureConnection and coming from AVCaptureSession.h. | |
110 MEDIA_EXPORT | |
111 @interface CrAVCaptureConnection : NSObject | |
112 | |
113 - (BOOL)isVideoMinFrameDurationSupported; | |
114 - (void)setVideoMinFrameDuration:(CoreMediaGlue::CMTime)minFrameRate; | |
115 - (BOOL)isVideoMaxFrameDurationSupported; | |
116 - (void)setVideoMaxFrameDuration:(CoreMediaGlue::CMTime)maxFrameRate; | |
117 | |
118 @end | |
119 | |
120 // Originally AVCaptureDeviceInput and coming from AVCaptureInput.h. | |
121 MEDIA_EXPORT | |
122 @interface CrAVCaptureDeviceInput : CrAVCaptureInput | |
123 | |
124 @end | |
125 | |
126 // Originally AVCaptureVideoDataOutputSampleBufferDelegate from | |
127 // AVCaptureOutput.h. | |
128 @protocol CrAVCaptureVideoDataOutputSampleBufferDelegate <NSObject> | |
129 | |
130 @optional | |
131 | |
132 - (void)captureOutput:(CrAVCaptureOutput*)captureOutput | |
133 didOutputSampleBuffer:(CoreMediaGlue::CMSampleBufferRef)sampleBuffer | |
134 fromConnection:(CrAVCaptureConnection*)connection; | |
135 | |
136 @end | |
137 | |
138 // Originally AVCaptureVideoDataOutput and coming from AVCaptureOutput.h. | |
139 MEDIA_EXPORT | |
140 @interface CrAVCaptureVideoDataOutput : CrAVCaptureOutput | |
141 | |
142 - (oneway void)release; | |
143 - (void)setSampleBufferDelegate:(id)sampleBufferDelegate | |
144 queue:(dispatch_queue_t)sampleBufferCallbackQueue; | |
145 | |
146 - (void)setVideoSettings:(NSDictionary*)videoSettings; | |
147 - (NSDictionary*)videoSettings; | |
148 - (CrAVCaptureConnection*)connectionWithMediaType:(NSString*)mediaType; | |
149 | |
150 @end | |
151 | |
152 // Class to provide access to class methods of AVCaptureDevice. | |
153 MEDIA_EXPORT | |
154 @interface AVCaptureDeviceGlue : NSObject | |
155 | |
156 + (NSArray*)devices; | |
157 | |
158 + (CrAVCaptureDevice*)deviceWithUniqueID:(NSString*)deviceUniqueID; | |
159 | |
160 @end | |
161 | |
162 // Class to provide access to class methods of AVCaptureDeviceInput. | |
163 MEDIA_EXPORT | |
164 @interface AVCaptureDeviceInputGlue : NSObject | |
165 | |
166 + (CrAVCaptureDeviceInput*)deviceInputWithDevice:(CrAVCaptureDevice*)device | |
167 error:(NSError**)outError; | |
168 | |
169 @end | |
170 | |
171 #endif // MEDIA_VIDEO_CAPTURE_MAC_AVFOUNDATION_GLUE_H_ | |
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