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Reland "Add completion callbacks to RTCCameraVideoCapturer start/stop operations"

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This is a reland of e23a9e8f418ad758bc1be5b53184b69ad1dab1c2
Original change's description:
> Add completion callbacks to RTCCameraVideoCapturer start/stop operations
> 
> Bug: webrtc:8696
> Change-Id: I327ce11632fd0c71e28411d260094e87ede6b6b6
> Reviewed-on: https://webrtc-review.googlesource.com/37021
> Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
> Reviewed-by: Anders Carlsson <andersc@webrtc.org>
> Commit-Queue: Anders Carlsson <andersc@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#21546}

Bug: webrtc:8696
Change-Id: I48b4d140d870c9924ef0d76f4d282ff13951e083
Reviewed-on: https://webrtc-review.googlesource.com/38800
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21592}
This commit is contained in:
Anders Carlsson
2018-01-10 16:47:05 +01:00
committed by Commit Bot
parent 75baa498fa
commit 24e7a593d5
2 changed files with 30 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
sdk/objc/Framework/Classes/PeerConnection/RTCCameraVideoCapturer.m
View File

@ -116,6 +116,17 @@ const int64_t kNanosecondsPerSecond = 1000000000;
- (void)startCaptureWithDevice:(AVCaptureDevice *)device
format:(AVCaptureDeviceFormat *)format
fps:(NSInteger)fps {
[self startCaptureWithDevice:device format:format fps:fps completionHandler:nil];
}
- (void)stopCapture {
[self stopCaptureWithCompletionHandler:nil];
}
- (void)startCaptureWithDevice:(AVCaptureDevice *)device
format:(AVCaptureDeviceFormat *)format
fps:(NSInteger)fps
completionHandler:(nullable void (^)(NSError *))completionHandler {
_willBeRunning = YES;
[RTCDispatcher
dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
@ -132,6 +143,9 @@ const int64_t kNanosecondsPerSecond = 1000000000;
if (![_currentDevice lockForConfiguration:&error]) {
RTCLogError(
@"Failed to lock device %@. Error: %@", _currentDevice, error.userInfo);
if (completionHandler) {
completionHandler(error);
}
return;
}
[self reconfigureCaptureSessionInput];
@ -141,10 +155,13 @@ const int64_t kNanosecondsPerSecond = 1000000000;
[_captureSession startRunning];
[_currentDevice unlockForConfiguration];
_isRunning = YES;
if (completionHandler) {
completionHandler(nil);
}
}];
}
- (void)stopCapture {
- (void)stopCaptureWithCompletionHandler:(nullable void (^)())completionHandler {
_willBeRunning = NO;
[RTCDispatcher
dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
@ -160,6 +177,9 @@ const int64_t kNanosecondsPerSecond = 1000000000;
[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
#endif
_isRunning = NO;
if (completionHandler) {
completionHandler();
}
}];
}