Question

我有一个应用程序，我正在尝试捕获录音和录像。我可以做一个或另一个但不是两个，问题似乎是我的AVAudioSession。为了录制和播放音频，我使用以下代码：

NSError *error = nil;

audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];

UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(audioRouteOverride), &audioRouteOverride);

[audioSession setActive:YES error:&error];

为了捕获视频我正在使用UIImagePickerController：

- (BOOL)startCameraControllerFromViewController: (UIViewController*) controller usingDelegate: (id <UIImagePickerControllerDelegate, UINavigationControllerDelegate>) delegate
{
    NSLog(@"AAVC startCameraControllerFromViewController");

    if (([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] == NO) || (delegate == nil) || (controller == nil))
    {
        return NO;
    }

    cameraUI = [[UIImagePickerController alloc] init]; 
    [cameraUI setSourceType:UIImagePickerControllerSourceTypeCamera];
    [cameraUI setAllowsEditing:NO];
    [cameraUI setDelegate:delegate];

    NSLog(@"cameraUI retainCount = %i", [cameraUI retainCount]);

    AccessAndrewAppDelegate *AppDelegate = [[UIApplication sharedApplication] delegate];

    if (AppDelegate.isMovie)
    {
        [cameraUI setMediaTypes:[[NSArray alloc] initWithObjects:(NSString *) kUTTypeMovie, nil]];
        [cameraUI setVideoQuality:UIImagePickerControllerQualityTypeLow];
        AppDelegate.isMovie = NO;
    }
    else
    {
        [cameraUI setMediaTypes:[[NSArray alloc] initWithObjects:(NSString *) kUTTypeImage, nil]];
    }

    [controller presentModalViewController:cameraUI animated:YES];

    return YES;
}

当使用AVAudioSession代码并尝试录制视频时，快门将打开然后关闭并冻结，会发生什么。如果我注释掉AVAudioSession配置的视频记录;但是，语音记录无法正常播放。有什么想法吗？

Answer 1

这已经解决了。我的AVAudioSession在app委托中出现问题。如果启动相机以录制电影，则需要添加一些if逻辑来重新配置音频会话

阻止UIImagePickerController电影录制

1 个答案: