Question

我使用Photo框架在collectionview中显示了所有图库的视频。我从PHCachingImageManager（PHAsset lib）中提取了视频网址，如下所示：

console.log

因为我必须上传所选视频，所以我将其转换为nsdata，如下所示：

[imageManager requestAVAssetForVideo:asset options:nil resultHandler:^(AVAsset *avAsset, AVAudioMix *audioMix, NSDictionary *vidInfo) {
        // Use the AVAsset avAsset
        AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:avAsset];
        AVPlayer *videoPlayer = [AVPlayer playerWithPlayerItem:playerItem];

        NSURL *vUrl=[self urlOfCurrentlyPlayingInPlayer:videoPlayer];
        NSString *url=[NSString stringWithFormat:@"%@",vUrl];

        if (url.length>0) {
            [videoInfo addObject:url];
        }
    }];

获取以下网址：NSData* data = [NSData dataWithContentsOfFile:selectedFileUrl options:0 error:&error];

但我总是将数据设为null。

我在这里做错了什么？请帮忙！

谢谢!!!

Answer 1

检查一下：

  NSData* data = [NSData dataWithContentsOfFile::[NSURL URLWithString: selectedFileUrl]  options:nil error:&error];

Answer 2

尝试使用它

[imageManager requestAVAssetForVideo:asset options:nil resultHandler:^(AVAsset *avAsset, AVAudioMix *audioMix, NSDictionary *vidInfo) {
        // Use the AVAsset avAsset
        AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:avAsset];
        AVPlayer *videoPlayer = [AVPlayer playerWithPlayerItem:playerItem];

        NSURL *vUrl=[self urlOfCurrentlyPlayingInPlayer:videoPlayer];
        if (vUrl) {
            [videoInfo addObject:vUrl];
        }
    }];

现在您可以使用以下内容获取数据：NSData *videoData = [NSData dataWithContentsOfURL:videoURL];

如何使用ios中的视频网址将从gallery中选取的视频转换为NSData？

2 个答案: