视频流中的方向如何工作 [Objective-C]

Question

我在我的应用程序中使用 medialibdemos3x & 我的问题是当我以横向模式流式传输视频时，它显示如下图：
Image

& 这是我的代码：

@interface ViewControllerPublish () <MPIMediaStreamEvent>{    
MemoryTicker            *memoryTicker;
RTMPClient              *socket;
BroadcastStreamClient   *upstream;

MPVideoResolution       resolution;
AVCaptureVideoOrientation orientation;
UIActivityIndicatorView *netActivity;
UIDeviceOrientation deviceOrientation;}

-(void)viewDidLoad {
//[DebLog setIsActive:YES];
[super viewDidLoad];

[self initNetActivity];


memoryTicker = [[MemoryTicker alloc] initWithResponder:self andMethod:@selector(sizeMemory:)];
memoryTicker.asNumber = YES;

socket = nil;
upstream = nil;}

-(void)doConnect {

resolution = RESOLUTION_CIF;  
#if upstream = [[BroadcastStreamClient alloc] init:host resolution:resolution];
//upstream = [[BroadcastStreamClient alloc] initOnlyAudio:hostTextField.text];
//upstream = [[BroadcastStreamClient alloc] initOnlyVideo:hostTextField.text resolution:resolution];

 #else

if (!socket) {
    socket = [[RTMPClient alloc] init:hostTextField.text];
    if (!socket) {
        [self showAlert:@"Connection has not be created"];
        return;}

    [socket spawnSocketThread];}

upstream = [[BroadcastStreamClient alloc] initWithClient:socket resolution:resolution];

#endif

upstream.delegate = self;

upstream.videoCodecId = MP_VIDEO_CODEC_H264;

upstream.audioCodecId = MP_AUDIO_CODEC_AAC;

& 这是我的定位代码：

deviceOrientation =
[[UIDevice currentDevice] orientation];
if ( deviceOrientation == UIDeviceOrientationLandscapeLeft )
    orientation  = AVCaptureVideoOrientationLandscapeRight;

else if ( deviceOrientation == UIDeviceOrientationLandscapeRight )
    orientation  = AVCaptureVideoOrientationLandscapeLeft;

else  orientation = AVCaptureVideoOrientationPortrait;

[upstream setVideoOrientation:orientation];

[upstream stream:stream publishType:PUBLISH_LIVE];
//[upstream stream:streamTextField.text orientation:orientation publishType:PUBLISH_RECORD];
//[upstream stream:streamTextField.text orientation:orientation publishType:PUBLISH_APPEND];

btnConnect.title = @"Disconnect";

[netActivity startAnimating];}

有没有办法解决这个问题？谢谢

Answer 1

根据 Apple 指南，您不能在使用导航控制器时针对不同 viewController 强行更改应用程序的方向。您可以设置或允许特定 viewcontroller 的方向，但用户必须旋转设备。

参考此 link 以了解如何允许不同的方向。这有很好的问题和很多好的答案。 click here

希望这会有所帮助。 :)

视频流中的方向如何工作 [Objective-C]

How orientation work in video streaming [Objective-C]

objective-c

video-streaming

ios