ios - 如何在 swift 3.3x 中从 AVURLAsset URL 访问视频/图像？
<p><p>我有类似“file:///var/mobile/Media/DCIM/101APPLE/IMG_1006.MOV”的 AVUrlAsset。如何在 Swift 中从这个 url 访问视频？</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>这样你就可以获取所有视频</p>
<pre><code> DispatchQueue.global(qos: .background).async {
PHPhotoLibrary.requestAuthorization { (status) -> Void in
let allVidOptions = PHFetchOptions()
allVidOptions.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.video.hashValue) //Any type you want to fetch
allVidOptions.sortDescriptors =
//Now the set the option to `fetchAssets`
let allVids = PHAsset.fetchAssets(with: allVidOptions)
print("All Videos Count \(allVids.count)")
for index in 0..<allVids.count {
let videoRequestOptions = PHVideoRequestOptions()
videoRequestOptions.deliveryMode = .fastFormat //quality-> 360p mp4
videoRequestOptions.version = .original
PHImageManager.default().requestPlayerItem(forVideo: allVids, options: videoRequestOptions , resultHandler: { (playerItem, result) in
// print(result as! )
// print(playerItem)
let currentVideoUrlAsset = playerItem?.asset as?AVURLAsset
let currentVideoFilePAth = currentVideoUrlAsset!.url
let lastObject = currentVideoFilePAth.pathExtension
print(lastObject)
if lastObject == "M4V" {
self.arrOfVideos.append(playerItem!)
}
//NSString *lastPath = ;
//NSString *fileExtension = ;
//NSLog(@"File extension %@",fileExtension);
var i = Int()
print("Appending.... \(i);)")
i += 1
print("My Videos Count \(self.arrOfVideos.count)")
DispatchQueue.main.async(execute: {
self.tblVideos.reloadData()
})
})
//fetch Asset here
//print(allVids.description)
// print(self.arrOfVideos) //will show empty first then after above completion the execution will come here again
}
}
}
</code></pre></p>
<p style="font-size: 20px;">关于ios - 如何在 swift 3.3x 中从 AVURLAsset URL 访问视频/图像？，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/44325560/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/44325560/
</a>
</p>
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