在 avplayer 中将 coredata 中的视频作为 nsdata 播放

Question

如何在 AVPlayer 中播放来自 coredata 的视频作为 nsdata 格式？ MPMoviePlayerController 已弃用，所以我将使用 AVPlayer。我正在搜索关于保存 nsdata 位置的 url 路径的一些事情，我不清楚。有人解释一下吗？怎么玩？

我是新手，如果分享该代码，我将不胜感激。

如果有人分享了自定义 AVPlayer 的好教程，我没有找到好的教程，所以从 github 示例项目中学习。

提前致谢:)

Answer 1

你可以试试这个！

 NSString *filePath = [self documentsPathForFileName:@"video.mp4"];

 BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:filePath];
 if(!fileExists) {
    NSData *videoAsData;   // your data here
    [videoAsData writeToFile:filePath atomically:YES];
 }

 // access video as URL
 NSURL *videoFileURL =  [NSURL fileURLWithPath:filePath];

// create an AVPlayer
AVPlayer *player = [AVPlayer playerWithURL:videoFileURL];

// create a player view controller
AVPlayerViewController *controller = [[AVPlayerViewController alloc]init];
controller.player = player;

[self presentViewController:controller animated:YES completion:^{
    [controller.player play];
}];


- (NSString *)documentsPathForFileName:(NSString *)name
{
  NSArray *paths =     NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
  NSString *documentsPath = [paths objectAtIndex:0];

  return [documentsPath stringByAppendingPathComponent:name];
}

// if you want to remove file after playing video

NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
BOOL success = [fileManager removeItemAtPath:filePath error:&error];

Answer 2

这里有一个 Swift 版本，介绍如何执行此操作

let data = //... your video Data/NSData
let cacheURL = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!.appendingPathComponent("yourvidename.mp4")

do {
    try data.write(to: cacheURL, options: .atomicWrite)
} catch let err {
    print("Failed with error:", err.localizedString)
}

// instantiate the player
let player = AVPlayer(url: cacheURL)
let vcPlayer = AVPlayerViewController()
vcPlayer.player = player
vcPlayer.player?.play()

// present it or add it to whatever view you need
present(vcPlayer, animated: true, completion: nil)

然后在viewWillDisappear删除cachesDirectory的内容

在 avplayer 中将 coredata 中的视频作为 nsdata 播放

Play video from coredata as nsdata in avplayer

ios

objective-c

core-data

nsdata

avplayer