如何从 url 下载视频将其保存在目录中并在 ios 中使用 MPMovie 播放器播放

Question

我尝试下载，但下载的视频显示不支持，请帮助感谢您的帮助。

这是我的代码：

从url代码下载视频

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    NSLog(@"Downloading Started");
    NSString *urlToDownload = @"http://cdn-fms.rbs.com.br/vod/hls_sample1_manifest.m3u8";
    NSURL  *url = [NSURL URLWithString:urlToDownload];
    NSData *urlData = [NSData dataWithContentsOfURL:url];
    if ( urlData )
    {

        NSLog(@"urldata %@   ",urlData);
        NSArray   *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString  *documentsDirectory = [paths objectAtIndex:0];

        NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"thefifle2.mov"];

        //saving is done on main thread
        dispatch_async(dispatch_get_main_queue(), ^{
            [urlData writeToFile:filePath atomically:YES];
            NSLog(@"File Saved !%@",filePath);
             _url = [NSURL URLWithString:filePath];
            [self playv];

        });
    }

});

使用 MPMoviepLayercontroller 播放下载的视频

    NSURL *vedioURL;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSArray *filePathsArray = [[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory  error:nil];
NSLog(@"files array %@", filePathsArray);

NSString *fullpath;

for (NSString *apath in filePathsArray )
{
     fullpath = [documentsDirectory stringByAppendingPathComponent:apath];
    vedioURL =[NSURL fileURLWithPath:fullpath];

}

 NSData *urlData1 = [NSData dataWithContentsOfURL:vedioURL];
 NSLog(@" url data1 %@  ",urlData1);
NSLog(@"vurl %@",vedioURL);
MPMoviePlayerViewController *videoPlayerView = [[MPMoviePlayerViewController alloc] initWithContentURL:vedioURL];
[self presentMoviePlayerViewControllerAnimated:videoPlayerView];
[videoPlayerView.moviePlayer play];

Answer 1

我尝试了一些对我有用的 mp4 示例

//download the file in a seperate thread.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    NSLog(@"Downloading Started");
    NSString *urlToDownload = @"http://techslides.com/demos/sample-videos/small.mp4";
    NSURL  *url = [NSURL URLWithString:urlToDownload];
    NSData *urlData = [NSData dataWithContentsOfURL:url];
    if ( urlData )
    {

        NSLog(@"urldata %@   ",urlData);
        NSArray   *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString  *documentsDirectory = [paths objectAtIndex:0];

        NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"demo2.mp4"];

        //saving is done on main thread
        dispatch_async(dispatch_get_main_queue(), ^{
            [urlData writeToFile:filePath atomically:YES];
            NSLog(@"File Saved !%@",filePath);
             _url = [NSURL URLWithString:filePath];


        });
    }

});

Answer 2

您确实意识到您的网址实际上并未指向“视频”文件？

.m3u8 文件不是实际的资产文件，而是更类似于播放列表。它们用于 HTTP 实时流式传输，并根据可用带宽为“分段”提供位置