Instance Method

captureOutput:didStartRecordingToOutputFileAtURL:fromConnections:

Informs the delegate when the output has started writing to a file.

Declaration

- (void)captureOutput:(AVCaptureFileOutput *)output didStartRecordingToOutputFileAtURL:(NSURL *)fileURL fromConnections:(NSArray<AVCaptureConnection *> *)connections;

Parameters

captureOutput

The capture file output that started writing the file.

fileURL

The file URL of the file that is being written.

connections

An array of AVCaptureConnection objects attached to the file output that provided the data that is being written to the file.

Discussion

If an error condition prevents any data from being written, this method may not be called. captureOutput:willFinishRecordingToOutputFileAtURL:fromConnections:error: and captureOutput:didFinishRecordingToOutputFileAtURL:fromConnections:error: are always called, even if no data is written.

You should not assume that this method will be called on a specific thread, and should make this method as efficient as possible.

See Also

Delegate Methods

- captureOutput:willFinishRecordingToOutputFileAtURL:fromConnections:error:

Informs the delegate when the output will stop writing new samples to a file.

- captureOutput:didFinishRecordingToOutputFileAtURL:fromConnections:error:

Informs the delegate when all pending data has been written to an output file.

Required.

- captureOutput:didPauseRecordingToOutputFileAtURL:fromConnections:

Called whenever the output is recording to a file and successfully pauses the recording at the request of a client.

- captureOutput:didResumeRecordingToOutputFileAtURL:fromConnections:

Called whenever the output, at the request of the client, successfully resumes a file recording that was paused.