我正在尝试录制视频(不显示相机)并保存。但正在保存的视频无法以正确的方向保存。我已经尝试强制UIViewController成为一个特定的方向,但这没有帮助。所有视频都以纵向录制。我的代码如下:
session = [[AVCaptureSession alloc] init];
[session beginConfiguration];
session.sessionPreset = AVCaptureSessionPresetHigh;
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *cam in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo])
{
if (cam.position == AVCaptureDevicePositionFront)
device = cam;
}
NSError *error = nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
if (!input) {
// Handle the error appropriately.
NSLog(@"ERROR: trying to open camera: %@", error);
}
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *outputpathofmovie = [[documentsDirectoryPath stringByAppendingPathComponent:@"RecordedVideo"] stringByAppendingString:@".mp4"];
outputURL = [[NSURL alloc] initFileURLWithPath:outputpathofmovie];
[self deleteTempVideos];
[session addInput:input];
[session addInput:audioInput];
[session commitConfiguration];
[session startRunning];
movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
NSLog(@"%@", movieFileOutput.connections);
AVCaptureConnection *videoConnection = nil;
for ( AVCaptureConnection *connection in [movieFileOutput connections] )
{
NSLog(@"%@", connection);
for ( AVCaptureInputPort *port in [connection inputPorts] )
{
NSLog(@"%@", port);
if ( [[port mediaType] isEqual:AVMediaTypeVideo] )
{
videoConnection = connection;
}
}
}
if([videoConnection isVideoOrientationSupported]) // **Here it is, its always false**
{
[videoConnection setVideoOrientation:[[UIDevice currentDevice] orientation]];
}
NSLog(@"%@", videoConnection);
[session addOutput:movieFileOutput];
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];
答案 0 :(得分:21)
事实证明,在将AVCaptureMovieFileOutput添加到会话后,必须将其连接添加到AVCaptureMovieFileOutput。
session = [[AVCaptureSession alloc] init];
[session beginConfiguration];
session.sessionPreset = AVCaptureSessionPresetHigh;
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *cam in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo])
{
if (cam.position == AVCaptureDevicePositionFront)
device = cam;
}
NSError *error = nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
if (!input) {
// Handle the error appropriately.
NSLog(@"ERROR: trying to open camera: %@", error);
}
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *outputpathofmovie = [[documentsDirectoryPath stringByAppendingPathComponent:@"RecordedVideo"] stringByAppendingString:@".mp4"];
outputURL = [[NSURL alloc] initFileURLWithPath:outputpathofmovie];
[self deleteTempVideos];
[session addInput:input];
[session addInput:audioInput];
[session commitConfiguration];
[session startRunning];
movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
[session addOutput:movieFileOutput];
AVCaptureConnection *videoConnection = nil;
for ( AVCaptureConnection *connection in [movieFileOutput connections] )
{
NSLog(@"%@", connection);
for ( AVCaptureInputPort *port in [connection inputPorts] )
{
NSLog(@"%@", port);
if ( [[port mediaType] isEqual:AVMediaTypeVideo] )
{
videoConnection = connection;
}
}
}
if([videoConnection isVideoOrientationSupported]) // **Here it is, its always false**
{
[videoConnection setVideoOrientation:[[UIDevice currentDevice] orientation]];
}
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];
答案 1 :(得分:8)
**
**
if let videoConnection = fileOutput.connection(with: .video) {
let newOrientation: AVCaptureVideoOrientation
switch UIDevice.current.orientation {
case .portrait:
newOrientation = .portrait
case .portraitUpsideDown:
newOrientation = .portraitUpsideDown
case .landscapeLeft:
newOrientation = .landscapeRight
case .landscapeRight:
newOrientation = .landscapeLeft
default :
newOrientation = .portrait
}
videoConnection.videoOrientation = newOrientation
self.fileOutput.startRecording(to: URL(fileURLWithPath: filePath), recordingDelegate: self)
}
<强>,其中强>,
var fileOutput : AVCaptureMovieFileOutput!
答案 2 :(得分:2)
尝试这样的事情:
#import <AVFoundation/AVFoundation.h>
AVCaptureConnection *captureConnection = <#A capture connection#>;
if ([captureConnection isVideoOrientationSupported])
{
AVCaptureVideoOrientation orientation = AVCaptureVideoOrientationLandscapeLeft;
[captureConnection setVideoOrientation:orientation];
}
http://developer.apple.com/library/ios/#qa/qa1744/_index.html#//apple_ref/doc/uid/DTS40011134
答案 3 :(得分:0)
感谢Destiny Dawn,任何人都在寻找Xamarin ios的代码:
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