相关疑难解决方法(0)

目标是使用Swift在设备上捕获全屏视频.在下面的代码中,视频捕获似乎全屏发生(录制相机预览时使用全屏),但视频的渲染以不同的分辨率发生.特别是对于5S,看起来捕获发生在320x568但渲染发生在320x480.

如何捕获和呈现全屏视频？

视频捕获代码:

private func initPBJVision() {
    // Store PBJVision in var for convenience
    let vision = PBJVision.sharedInstance()

    // Configure PBJVision
    vision.delegate = self
    vision.cameraMode = PBJCameraMode.Video
    vision.cameraOrientation = PBJCameraOrientation.Portrait
    vision.focusMode = PBJFocusMode.ContinuousAutoFocus
    vision.outputFormat = PBJOutputFormat.Preset
    vision.cameraDevice = PBJCameraDevice.Back

    // Let taps start/pause recording
    let tapHandler = UITapGestureRecognizer(target: self, action: "doTap:")
    view.addGestureRecognizer(tapHandler)

    // Log status
    print("Configured PBJVision")
}


private func startCameraPreview() {
    // Store PBJVision in var for convenience
    let vision = PBJVision.sharedInstance()

    // Connect PBJVision …

我已经创建了自己的自定义控件来使用MPMoviePlayerController.到目前为止,一切都有效,除了静音按钮控制.

AVAudioSession在创建我的实例之前,我已经使用以下代码进行了配置MPMoviePlayerController.

    NSError *modeError = nil;
    [self.audioSession setMode:AVAudioSessionModeMoviePlayback error:&modeError];
    if (modeError != nil) {
        NSLog(@"Error setting mode for AVAudioSession: %@", modeError);
    }

    NSError *categoryError = nil;
    [self.audioSession setCategory:AVAudioSessionCategoryPlayback error:&categoryError];
    if (categoryError != nil) {
        NSLog(@"Error setting category for AVAudioSession: %@", categoryError);
    }

然后在我的静音按钮回调方法中,我有以下代码:

    NSError *activeError = nil;
    [self.audioSession setActive:NO error:&activeError];
    if (activeError != nil) {
        NSLog(@"Error setting inactive state for AVAudioSession: %@", activeError);
    }

单击"静音"按钮时,出现以下无用错误:

Error Domain=NSOSStatusErrorDomain Code=560030580 "The operation couldn’t be completed. (OSStatus error …