ios - 如何在使用 RTMPStreamPublisher 发布视频时将视频存储在 iPhone 上？

Question

现在我正在使用 RTMPStreamPublisher 在 wowzaserver 上发布视频。它上传到那里成功了，但是谁能告诉我如何在上传到服务器的同时在 iPhone 上存储相同的视频？

我正在使用 https://github.com/slavavdovichenko/MediaLibDemos , 但没有太多可用的文档。如果我可以只存储发送以供发布的数据，那么我的工作就会成功。

这是他们用来上传流的方法，但我找不到在我的 iPhone 设备上存储相同视频的方法:

// ACTIONS

-(void)doConnect {
#if 0 // use ffmpeg rtmp 
    NSString *url = [NSString stringWithFormat:@"%@/%@", hostTextField.text, streamTextField.text];
    upstream = [[BroadcastStreamClient alloc] init:url  resolution:RESOLUTION_LOW];
    upstream.delegate = self;
    upstream.encoder = [MPMediaEncoder new];
    [upstream start];
    socket = [[RTMPClient alloc] init:host]
    btnConnect.title = @"Disconnect";     
    return;
#endif

#if 0 // use inside RTMPClient instance
    upstream = [[BroadcastStreamClient alloc] init:hostTextField.text resolution:RESOLUTION_LOW];
    //upstream = [[BroadcastStreamClient alloc] initOnlyAudio:hostTextField.text];
    //upstream = [[BroadcastStreamClient alloc] initOnlyVideo:hostTextField.text resolution:RESOLUTION_LOW];

#else // use outside RTMPClient instance

    if (!socket) {
        socket = [[RTMPClient alloc] init:hostTextField.text];
        if (!socket) {
            [self showAlert:@"Socket has not be created"];
            return;
        }
        [socket spawnSocketThread];
   }
    upstream = [[BroadcastStreamClient alloc] initWithClient:socket resolution:RESOLUTION_LOW];
#endif

    [upstream setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
    //[upstream setVideoOrientation:AVCaptureVideoOrientationLandscapeLeft];
    //[upstream setVideoBitrate:512000];
    upstream.delegate = self;
    [upstream stream:streamTextField.text publishType:PUBLISH_LIVE];
    //[upstream stream:streamTextField.text publishType:PUBLISH_RECORD];
    //[upstream stream:streamTextField.text publishType:PUBLISH_APPEND];
    btnConnect.title = @"Disconnect";     
}

我确实发现，使用名为“upstream”的 BroadcastStreamClient 实例，我可以通过以下行获取 AVCaptureSession

[upstream getCaptureSession];

如何使用此 AVCaptureSession 在 iPhone 上录制视频？

Answer 1

一旦你获得了 AVCaptureSession，你可以像这样向它添加一个 AVCaptureMovieFileOutput 的实例:

AVCaptureMovieFileOutput *movieFileOutput = [AVCaptureMovieFileOutput new];
if([captureSession canAddOutput:movieFileOutput]){
    [captureSession addOutput:movieFileOutput];
}

// Start recording
NSURL *outputURL = …
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];

来源: https://www.objc.io/issues/23-video/capturing-video/

另请查看此内容以便更好地理解如何使用 AVCaptureFileOutput:https://developer.apple.com/library/mac/documentation/AVFoundation/Reference/AVCaptureFileOutput_Class/index.html#//apple_ref/occ/cl/AVCaptureFileOutput