How to avoid compression after selecting video from UIImagePickerController in ios

Question

I am using UIImagePickerController to select video from Gallery and it compress that video.I want to disable Compression but I don't find the way to do this. I also tried with ELCImagePickerController it is showing video but it is looking like an image only there is no video icon or time duration like it shows in UIImagePickercontroller.How can I do it?

Thanks.

Answer 1

With iOS 11 you can set the property videoExportPreset to AVAssetExportPresetPassthrough to get the original:

if #available(iOS 11.0, *) {     picker.videoExportPreset = AVAssetExportPresetPassthrough } 

The "Video compression..." label just flashes for a few milliseconds and then the export is done.

@Diego Renau almost had the correct answer.

Answer 2

It doesn't look like it's possible to avoid compression using the UIImagePickerController. See this answer:

https://stackoverflow.com/a/5893066/406152

I've tried using imagePicker.videoQuality = UIImagePickerControllerQualityTypeHigh; but it still does compression. Ugh.

EDIT:

However, you can roll your own. This will allow access to the raw video files:

iOS 8

PHFetchResult *assetsFetchResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeVideo options:nil]; for (PHAsset *asset in assetsFetchResult) {     PHVideoRequestOptions *videoRequestOptions = [[PHVideoRequestOptions alloc] init];     videoRequestOptions.version = PHVideoRequestOptionsVersionOriginal;      [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:videoRequestOptions resultHandler:^(AVAsset *asset, AVAudioMix *audioMix, NSDictionary *info) {         // the AVAsset object represents the original video file     }]; } 

Look at the PhotoKit documentation for accessing collections (moments) and other options.

Here is a sample app from Apple using PhotoKit that could be modified to be a photo picker: https://developer.apple.com/library/ios/samplecode/UsingPhotosFramework/Introduction/Intro.html

Here is a photo picker library on GitHub that uses PhotoKit that looks promising since it gives you the PHAsset objects for all the selected images/videos: https://github.com/guillermomuntaner/GMImagePicker

iOS 7 and below

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];  [library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {     if (group) {         // If you want, you can filter just pictures or videos         // I just need videos so I do this:         [group setAssetsFilter:[ALAssetsFilter allVideos]];          [group enumerateAssetsUsingBlock:^(ALAsset *asset, NSUInteger index, BOOL *stop){             if (asset){                 // You can now add this ALAsset in your own video picker.                 // Note that you can only access the ALAsset as long as                  // you maintain a reference to the ALAssetsLibrary                  // Or if you want to process the video, you can create an AVAsset:                 NSURL *url = asset.defaultRepresentation.url;                 AVAsset *videoAsset = [AVAsset assetWithURL:url];             }         }];     } } failureBlock:^(NSError *error) {     NSLog(@"error enumerating AssetLibrary groups %@\n", error); }];