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전방 카메라의 배경에서 비디오를 녹화하고 정상적으로 작동하는 iOS 앱이 있습니다. 하지만 지금은 같은 시간에 짧은 MP4를 재생하려고하며 MPMoviePlayerController를 사용하여 재생하면 캡처 세션이 중지됩니다.동영상 재생 avcapturesession 녹음 중지
나는 같은 결과로 AVPlayer를 시도했다. 또한 [[AVAudioSession sharedInstance]를 설정합니다. setCategory : AVAudioSessionCategoryPlayAndRecord error : nil]; 아직 운이 없습니다. 같은 문제에 직면하고 해결 한 사람이 있었습니까? 제안 해 주셔서 감사합니다.
ios5 SDK 사용
#import "ViewController.h"
@interface ViewController()
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIButton *recButton=[[UIButton alloc] initWithFrame:CGRectMake(10,200, 200,40)] ;
recButton.backgroundColor = [UIColor blackColor];
[recButton addTarget:self action:@selector(startRecording) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:recButton];
isRecording=NO;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
-(void) viewWillAppear:(BOOL)animated
{
self.navigationController.navigationBarHidden = YES;
}
-(void) viewWillDisappear:(BOOL)animated
{
self.navigationController.navigationBarHidden = NO;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
return (interfaceOrientation == UIInterfaceOrientationPortrait);
} else {
return YES;
}
}
#pragma mark video playing
-(void) startRecording
{
if (isRecording) {
[self stopVideoRecording];
isRecording=NO;
}
else
{
[self initCaptureSession];
[self startVideoRecording];
isRecording=YES;
}
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:@"new"
ofType:@"mov"]];
[self playMovieAtURL:url];
}
-(void) playMovieAtURL: (NSURL*) theURL {
player =
[[MPMoviePlayerController alloc] initWithContentURL: theURL ];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
player.scalingMode = MPMovieScalingModeAspectFill;
player.controlStyle = MPMovieControlStyleNone;
[player prepareToPlay];
// Register for the playback finished notification
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(myMovieFinishedCallback:)
name: MPMoviePlayerPlaybackDidFinishNotification
object: player];
[player.view setFrame: self.view.bounds];
[self.view addSubview:player.view];
// Movie playback is asynchronous, so this method returns immediately.
[player play];
}
// When the movie is done, release the controller.
-(void) myMovieFinishedCallback: (NSNotification*) aNotification
{
MPMoviePlayerController* theMovie = [aNotification object];
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: MPMoviePlayerPlaybackDidFinishNotification
object: theMovie];
[player.view removeFromSuperview];
[self stopVideoRecording];
}
#pragma mark -
#pragma mark recording
-(void) initCaptureSession
{
NSLog(@"Setting up capture session");
captureSession = [[AVCaptureSession alloc] init];
//----- ADD INPUTS -----
NSLog(@"Adding video input");
//ADD VIDEO INPUT
AVCaptureDevice *VideoDevice = [self frontFacingCameraIfAvailable ];
//[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
if (VideoDevice)
{
NSError *error;
videoInputDevice = [AVCaptureDeviceInput deviceInputWithDevice:VideoDevice error:&error];
if (!error)
{
if ([captureSession canAddInput:videoInputDevice])
[captureSession addInput:videoInputDevice];
else
NSLog(@"Couldn't add video input");
}
else
{
NSLog(@"Couldn't create video input");
}
}
else
{
NSLog(@"Couldn't create video capture device");
}
//ADD AUDIO INPUT
NSLog(@"Adding audio input");
AVCaptureDevice *audioCaptureDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
NSError *error = nil;
AVCaptureDeviceInput *audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioCaptureDevice error:&error];
if (audioInput)
{
[captureSession addInput:audioInput];
}
//----- ADD OUTPUTS ---
//ADD MOVIE FILE OUTPUT
NSLog(@"Adding movie file output");
movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
// Float64 TotalSeconds = 60; //Total seconds
// int32_t preferredTimeScale = 30; //Frames per second
// CMTime maxDuration = CMTimeMakeWithSeconds(TotalSeconds, preferredTimeScale); //<<SET MAX DURATION
// movieFileOutput.maxRecordedDuration = maxDuration;
movieFileOutput.minFreeDiskSpaceLimit = 1024 * 1024; //<<SET MIN FREE SPACE IN BYTES FOR RECORDING TO CONTINUE ON A VOLUME
if ([captureSession canAddOutput:movieFileOutput])
[captureSession addOutput:movieFileOutput];
//SET THE CONNECTION PROPERTIES (output properties)
[self CameraSetOutputProperties]; //(We call a method as it also has to be done after changing camera)
//----- SET THE IMAGE QUALITY/RESOLUTION -----
//Options:
// AVCaptureSessionPresetHigh - Highest recording quality (varies per device)
// AVCaptureSessionPresetMedium - Suitable for WiFi sharing (actual values may change)
// AVCaptureSessionPresetLow - Suitable for 3G sharing (actual values may change)
// AVCaptureSessionPreset640x480 - 640x480 VGA (check its supported before setting it)
// AVCaptureSessionPreset1280x720 - 1280x720 720p HD (check its supported before setting it)
// AVCaptureSessionPresetPhoto - Full photo resolution (not supported for video output)
NSLog(@"Setting image quality");
[captureSession setSessionPreset:AVCaptureSessionPresetMedium];
if ([captureSession canSetSessionPreset:AVCaptureSessionPreset640x480]) //Check size based configs are supported before setting them
[captureSession setSessionPreset:AVCaptureSessionPreset640x480];
//----- START THE CAPTURE SESSION RUNNING -----
[captureSession startRunning];
}
//********** CAMERA SET OUTPUT PROPERTIES **********
- (void) CameraSetOutputProperties
{
AVCaptureConnection *CaptureConnection=nil;
//SET THE CONNECTION PROPERTIES (output properties)
NSComparisonResult order = [[UIDevice currentDevice].systemVersion compare: @"5.0.0" options: NSNumericSearch];
if (order == NSOrderedSame || order == NSOrderedDescending) {
// OS version >= 5.0.0
CaptureConnection = [movieFileOutput connectionWithMediaType:AVMediaTypeVideo];
// if (CaptureConnection.supportsVideoMinFrameDuration)
// CaptureConnection.videoMinFrameDuration = CMTimeMake(1, CAPTURE_FRAMES_PER_SECOND);
// if (CaptureConnection.supportsVideoMaxFrameDuration)
// CaptureConnection.videoMaxFrameDuration = CMTimeMake(1, CAPTURE_FRAMES_PER_SECOND);
// if (CaptureConnection.supportsVideoMinFrameDuration)
// {
// // CMTimeShow(CaptureConnection.videoMinFrameDuration);
// // CMTimeShow(CaptureConnection.videoMaxFrameDuration);
// }
} else {
// OS version < 5.0.0
CaptureConnection = [self connectionWithMediaType:AVMediaTypeVideo fromConnections:[movieFileOutput connections]];
}
//Set landscape (if required)
if ([CaptureConnection isVideoOrientationSupported])
{
AVCaptureVideoOrientation orientation = AVCaptureVideoOrientationPortrait;// AVCaptureVideoOrientationLandscapeRight; //<<<<<SET VIDEO ORIENTATION IF LANDSCAPE
[CaptureConnection setVideoOrientation:orientation];
}
//Set frame rate (if requried)
//CMTimeShow(CaptureConnection.videoMinFrameDuration);
//CMTimeShow(CaptureConnection.videoMaxFrameDuration);
}
- (void) startVideoRecording
{
//Create temporary URL to record to
NSString *outputPath = [[NSString alloc] initWithFormat:@"%@%@", NSTemporaryDirectory(), @"output.mov"];
NSURL *outputURL = [[NSURL alloc] initFileURLWithPath:outputPath];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:outputPath])
{
NSError *error;
if ([fileManager removeItemAtPath:outputPath error:&error] == NO)
{
//Error - handle if requried
NSLog(@"file remove error");
}
}
//Start recording
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];
}
-(void) stopVideoRecording
{
[movieFileOutput stopRecording];
}
//********** DID FINISH RECORDING TO OUTPUT FILE AT URL **********/
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput
didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL
fromConnections:(NSArray *)connections
error:(NSError *)error
{
NSLog(@"didFinishRecordingToOutputFileAtURL - enter");
BOOL RecordedSuccessfully = YES;
if ([error code] != noErr)
{
// A problem occurred: Find out if the recording was successful.
id value = [[error userInfo] objectForKey:AVErrorRecordingSuccessfullyFinishedKey];
if (value)
{
RecordedSuccessfully = [value boolValue];
}
}
if (RecordedSuccessfully)
{
//----- RECORDED SUCESSFULLY -----
NSLog(@"didFinishRecordingToOutputFileAtURL - success");
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
if ([library videoAtPathIsCompatibleWithSavedPhotosAlbum:outputFileURL])
{
[library writeVideoAtPathToSavedPhotosAlbum:outputFileURL
completionBlock:^(NSURL *assetURL, NSError *error)
{
if (error)
{
NSLog(@"File save error");
}
else
{
recordedVideoURL=assetURL;
}
}];
}
else {
NSString *assetURL=[self copyFileToDocuments:outputFileURL];
if(assetURL!=nil)
{
recordedVideoURL=[NSURL URLWithString:assetURL];
}
}
}
}
- (NSString*) copyFileToDocuments:(NSURL *)fileURL
{
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd_HH-mm-ss"];
NSString *destinationPath = [documentsDirectory stringByAppendingFormat:@"/output_%@.mov", [dateFormatter stringFromDate:[NSDate date]]];
NSError *error;
if (![[NSFileManager defaultManager] copyItemAtURL:fileURL toURL:[NSURL fileURLWithPath:destinationPath] error:&error]) {
NSLog(@"File save error %@", [error localizedDescription]);
return nil;
}
return destinationPath;
}
- (AVCaptureConnection *)connectionWithMediaType:(NSString *)mediaType fromConnections:(NSArray *)connections
{
for (AVCaptureConnection *connection in connections) {
for (AVCaptureInputPort *port in [connection inputPorts]) {
if ([[port mediaType] isEqual:mediaType]) {
return connection;
}
}
}
return nil;
}
- (AVCaptureDevice *)frontFacingCameraIfAvailable
{
// look at all the video devices and get the first one that's on the front
NSArray *videoDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
AVCaptureDevice *captureDevice = nil;
for (AVCaptureDevice *device in videoDevices)
{
if (device.position == AVCaptureDevicePositionFront)
{
captureDevice = device;
break;
}
}
// couldn't find one on the front, so just get the default video device.
if (! captureDevice)
{
captureDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
}
return captureDevice;
}
#pragma mark -
@end