我如何将 NSData 文件作为视频写入 Photolibrary/SavedPhotosAlbum？
我有一个 NSData 视频文件。如何将 NSData 文件作为视频写入 Photolibrary/SavedPhotosAlbum？
我通过以下代码使用 UIimage 完成了它。我有一个 UiImage 作为 myNsData(NSData)
UIImage *viewImage = [UIImage imageWithData:myNsData];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
// Request to save the image to camera roll
[library writeImageToSavedPhotosAlbum:[viewImage CGImage] orientation:(ALAssetOrientation)[viewImage imageOrientation] completionBlock:^(NSURL *assetURL, NSError *error){
}
我怎样才能为视频实现相同的功能。
我在 NSData cals 中搜索。
我发现只有两种方法。 他们
(void)writeVideoAtPathToSavedPhotosAlbum:(NSURL *)videoPathURL completionBlock:(ALAssetsLibraryWriteVideoCompletionBlock)completionBlock;
- (BOOL)videoAtPathIsCompatibleWithSavedPhotosAlbum:(NSURL *)videoPathURL;
中的两个正在使用 URL。实际上，我不想将 NSData 文件写入除 Photolibrary/SavedPhotosAlbum 之外的任何地方。
我需要将 NSData 文件直接写入 Photolibrary/SavedPhotosAlbum，就像我保存图像一样。该怎么做？有人可以帮助我吗？
i have a Video file as NSData.how can i write the NSData file as Video in to Photolibrary/SavedPhotosAlbum?
i done it with UIimage through the following code. i had a UiImage as myNsData(NSData)
UIImage *viewImage = [UIImage imageWithData:myNsData];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
// Request to save the image to camera roll
[library writeImageToSavedPhotosAlbum:[viewImage CGImage] orientation:(ALAssetOrientation)[viewImage imageOrientation] completionBlock:^(NSURL *assetURL, NSError *error){
}
how can i do it the same functionality for Video.
i searched in NSData calss .
i found only two ways.
they are
(void)writeVideoAtPathToSavedPhotosAlbum:(NSURL *)videoPathURL completionBlock:(ALAssetsLibraryWriteVideoCompletionBlock)completionBlock;
- (BOOL)videoAtPathIsCompatibleWithSavedPhotosAlbum:(NSURL *)videoPathURL;
two of them are using URL.actually i didn't want to write the NSData file any where except in Photolibrary/SavedPhotosAlbum.
i need to write the NSData file directly in to the Photolibrary/SavedPhotosAlbum like i saved an image.How can do that?can any one Help me?
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您需要使用视频 AVAssetWriterInput 创建 AVAssetWriter 并将数据添加到输入中。
创建 AVAssetWriter 时，需要指定资产的 URL。
之后，您可以使用 ALAssetsLibrary (writeVideoAtPathToSavedPhotosAlbum:completionBlock:) 将资产写入照片库，并使用上面创建的资产的 url。
You need to create an AVAssetWriter with a video AVAssetWriterInput and add your data into the input.
When you create the AVAssetWriter, you need to specify an URL for the asset.
After you can use the ALAssetsLibrary (writeVideoAtPathToSavedPhotosAlbum:completionBlock:) to write the asset to the photo library, with the url of the asset created above.