I am recording video using UIImagePicker, then trying to save it to the documents directory in NSData format.
This part works, but then I cannot play it back? How do you get MediaPlayer to play an NSData object?
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self dismissViewControllerAnimated:YES completion:NULL];
self.videoURL = info[UIImagePickerControllerMediaURL];
NSLog(#"video url-%#",self.videoURL);
NSData *videoData = [NSData dataWithContentsOfURL:self.videoURL];
NSArray *documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [documentDirectories firstObject];
NSString *videoPath = [documentDirectory stringByAppendingPathComponent:self.video.fileKey];
NSLog(#"video path-%#",videoPath);
[videoData writeToFile:videoPath atomically:YES];
self.videoURL = [NSURL fileURLWithPath:videoPath];
[self.videoController setContentURL:self.videoURL];
[self.videoController play];
}
Its OK I solved it. Was not added the .mov file extension when naming the new path.
Related
When I tried to copy a video from album to app using UIImagePickerController, the video is compressed.
When the video imported via Photos app on Mac, the ten-second long video is:
1920x1280 ~22MB
After the video is imported into app, then copied via iTunes Sharing, the compressed video is:
1280x720 ~6.3MB
How can I import video into app in original resolution and quality?
Code:
- (void)importVideo:(id)sender {
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
imagePickerController.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];
imagePickerController.allowsEditing = YES;
imagePickerController.delegate = self;
[self presentViewController:imagePickerController animated:YES completion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:YES completion:nil];
if (CFStringCompare((__bridge_retained CFStringRef)mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) {
NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *folder = [paths firstObject];
NSString *filename = [folder stringByAppendingPathComponent:self.uniqueFilename];
BOOL success = [videoData writeToFile:filename atomically:NO];
NSLog(#"Write to file %#", success ? #"OK" : #"Error");
}
}
Once a PHAsset is obtained via GMImagePicker, it can be saved by:
for (PHAsset *asset in assetArray) {
PHVideoRequestOptions *options = [[PHVideoRequestOptions alloc] init];
options.version = PHVideoRequestOptionsVersionOriginal;
[[PHImageManager defaultManager] requestAVAssetForVideo:asset
options:options
resultHandler:^(AVAsset *avAsset, AVAudioMix *audioMix, NSDictionary *info) {
if ([avAsset isKindOfClass:[AVURLAsset class]]) {
NSURL *videoURL = [(AVURLAsset *) avAsset URL];
NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *folder = [paths firstObject];
NSString *filename = [folder stringByAppendingPathComponent:#"foo.mp4"];
[videoData writeToFile:filename atomically:NO];
}
}];
}
I've a question in mind that driving me crazy. I've searched a lot to solve it, but all the answers that I found were old and not helped.
I'm currently working on application with that uses UIImagePickerControllerDelegate and with didFinishPickingMediaWithInfo I want to save the selected image to application folder.
Until now I'm able to select the image with this;
- (IBAction)btnPressed:(UIButton *)sender
{
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
UIImagePickerController *imgPicker = [[UIImagePickerController alloc] init];
imgPicker.delegate = self;
imgPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imgPicker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
imgPicker.allowsEditing = NO;
[self presentViewController:imgPicker animated:YES completion:nil];
}
}
but couldn't save it to application using didFinishPickingMediaWithInfo;
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:YES completion:nil];
if ([mediaType isEqualToString:(NSString *) kUTTypeImage])
{
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
//Assigning the selected image to imageView to see on UI side.
imageViewerImage.image = image;
}
}
I wonder what should be the part after this point.
I appreciate any help that you can provide.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self dismissViewControllerAnimated:YES completion:NULL];
UIImage* image;
if([[info valueForKey:#"UIImagePickerControllerMediaType"] isEqualToString:#"public.image"])
{
image = [info valueForKey:#"UIImagePickerControllerOriginalImage"];
NSString *stringPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0]stringByAppendingPathComponent:#"New Folder"];
// New Folder is your folder name
NSError *error = nil;
if (![[NSFileManager defaultManager] fileExistsAtPath:stringPath])
[[NSFileManager defaultManager] createDirectoryAtPath:stringPath withIntermediateDirectories:NO attributes:nil error:&error];
NSString *fileName = [stringPath stringByAppendingFormat:#"/image.jpg"];
NSData *data = UIImageJPEGRepresentation(image, 1.0);
[data writeToFile:fileName atomically:YES];
}
}
Try this code. It may helps you. :)
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
imgViewProfile.image = info[UIImagePickerControllerEditedImage];
[picker dismissViewControllerAnimated:YES completion:^{ }];
// ------ Now save this image to document directory by getting its path
}
Save an UIImage to the to Documentsfolder like this:
UIImage* myUIImage = ...
NSData *pngData = UIImagePNGRepresentation(myUIImage);
//NSData *pngData = UIImageJPEGRepresentation(myUIImage,0.5); //alternative comressed jpg instead of png
NSString *filePath = [[self buildDocumentsPath] stringByAppendingPathComponent:#"pictureName.png"]; //Add the file name
[pngData writeToFile:filePath atomically:YES]; //Write the file
Get the path of the documents as a string:
- (NSString *)buildDocumentsPath{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
return documentsPath;
}
Just save the image in your app document directory :
// first find the path in which to save the image :
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *baseDir = [paths objectAtIndex:0];
// then save image as JPEG
NSString* filename = [baseDir stringByAppendingPathComponent:#"filename.jpg"];
[UIImageJPEGRepresentation(image, 1.0) writeToFile:jpgPath atomically:YES];
// or PNG
NSString* filename = [baseDir stringByAppendingPathComponent:#"filename.png"];
[UIImagePNGRepresentation(image) writeToFile:pngPath atomically:YES];
//In Your - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage (UIImage *)image editingInfo:(NSDictionary *)editingInfo . Write this code
NSData *pngData = UIImagePNGRepresentation(image);
//This pulls out PNG data of the image you've captured. From here, you can write it to a file:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory
NSString *filePath = [documentsPath stringByAppendingPathComponent:#"image.png"]; //Add the file name
[pngData writeToFile:filePath atomically:YES]; //Write the file
I did that in my project:
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage * imageDone = [info objectForKey:#"UIImagePickerControllerEditedImage"];
[self saveImage:imageDone];
[self.popover dismissPopoverAnimated:YES];
}
-(void)saveImage:(UIImage*)image{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString * imgpath = [documentsDirectory stringByAppendingFormat:#"/media/img/"];
long x = arc4random() % 10000;
NSString * namePic = [NSString stringWithFormat:#"%lld%ld-photo.jpg", self.idToLoad.longLongValue, x];
NSString * stringName = [NSString stringWithFormat:#"%#%#", imgpath, namePic];
[UIImageJPEGRepresentation(image, 0.3) writeToFile:stringName atomically:YES];
}
I am using UIImagePickerController to record video, the problem is its recording the video in mov format for android compatibility.
I need to convert the video into mp4 format using below code the issue is its taking hell of a time for a 6 sec video it takes around 30 to 35 seconds.
Any solution that I can directly record the video in mp4 format or faster method would be of great help. Thanks in Advance
-(void)movToMp4:(NSURL *)videoURL{ // method for mov to mp4 conversion
AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:videoURL options:nil];
NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:avAsset];
if ([compatiblePresets containsObject:AVAssetExportPresetLowQuality])
{
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]initWithAsset:avAsset presetName:AVAssetExportPresetPassthrough];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* videoPath = [NSString stringWithFormat:#"%#/xyz.mp4", [paths objectAtIndex:0]];
exportSession.outputURL = [NSURL fileURLWithPath:videoPath];
exportSession.outputFileType = AVFileTypeMPEG4;
[exportSession exportAsynchronouslyWithCompletionHandler:^{
switch ([exportSession status]) { // switch case to get completion case where i put my delegate
return;
break;
case AVAssetExportSessionStatusCompleted: {
[self.delegate mp4Response:videoPath];
break;
}
}
}
}];
}
}
Yes because it takes time when you load video from library / album using AVURLAsset.
So you need to use block here to load video from library.
Also line
[self.delegate mp4Response:videoPath];
Which in a completion block - It should be on main thread.
Follow this approach:
UIImagePickerController delegate method to get videos from library.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSURL *localUrl = (NSURL *)[info valueForKey:UIImagePickerControllerMediaURL];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* videoPath = [NSString stringWithFormat:#"%#/xyz.mp4", [paths objectAtIndex:0]];
NSURL *outputURL = [NSURL fileURLWithPath:videoPath];
[self convertVideoToLowQuailtyWithInputURL:localUrl outputURL:outputURL handler:^(AVAssetExportSession *exportSession)
{
if (exportSession.status == AVAssetExportSessionStatusCompleted) {
NSLog(#"Capture video complete");
[self performSelectorOnMainThread:#selector(doneCompressing) withObject:nil waitUntilDone:YES];
}
}];
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)convertVideoToLowQuailtyWithInputURL:(NSURL*)inputURL outputURL:(NSURL*)outputURL handler:(void (^)(AVAssetExportSession*))handler {
[[NSFileManager defaultManager] removeItemAtURL:outputURL error:nil];
AVURLAsset *asset = [AVURLAsset URLAssetWithURL:inputURL options:nil];
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetPassthrough];
exportSession.outputURL = outputURL;
exportSession.outputFileType = AVFileTypeMPEG4;
[exportSession exportAsynchronouslyWithCompletionHandler:^(void) {
handler(exportSession);
}];
}
In didFinishPickingMediaWithInfo method observed this line:
[self performSelectorOnMainThread:#selector(doneCompressing) withObject:nil waitUntilDone:YES];
It will call a one more method doneCompressing in main thread (in foreground). So that you can call delegate method in doneCompressing. And this will reduce time.
- (void) doneCompressing {
[self.delegate mp4Response:videoPath];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSLog(#"file info = %#", info);
NSString *pickedType = [info objectForKey:#"UIImagePickerControllerMediaType"];
NSData *videoData;
if ([pickedType isEqualToString:#"public.movie"]){
NSURL *videoUrl=(NSURL*)[info objectForKey:UIImagePickerControllerMediaURL];
videoData = [NSData dataWithContentsOfURL:videoUrl];
}
[self dismissViewControllerAnimated:YES completion:^{
//
[self writeFileData:videoData];
}];
}
// to get path of document directory
- (NSString *)applicationDocumentsDirectory
{
// return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return documentsDirectory;
}
- (void) writeFileData:(NSData *)fileData{
float size = fileData.length / (1024 * 1024);
NSString *fileName = nil;
NSString *strPath = nil;
NSString *documentsDirectory = [self applicationDocumentsDirectory];
double CurrentTime = CACurrentMediaTime();
fileName = [NSString stringWithFormat:#"%d.mp4",(int)CurrentTime];
strPath = [documentsDirectory stringByAppendingPathComponent:fileName];
NSFileManager *filemanager=[[NSFileManager alloc] init];
NSError *er;
if (![filemanager fileExistsAtPath:documentsDirectory]) {
[filemanager createDirectoryAtPath:documentsDirectory withIntermediateDirectories:YES attributes:nil error:&er];
NSLog(#"error in folder creation = %#", er);
}
NSLog(#"size of data = %lu", (unsigned long)[fileData length]);
BOOL saved = [fileData writeToFile:strPath atomically:YES];
if (saved) {
NSURL *videoURL = [NSURL URLWithString:strPath];
// now u can handle mp4 video from videoURL
}
else
return;
}
I have successfully uploaded a video to Dropbox from the photo library, Whoever the video gets uploaded in a compressed format, when I would like it be be uploaded as is. How would I go about this inside this method or a new one? Here is my method:
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
int i;
// NSString *filename = [NSString stringWithFormat:#"%d.mov", i+1];
// NSString *file = [NSTemporaryDirectory() stringByAppendingPathComponent:filename];
NSString *moviePath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
if(picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self, #selector(asset:didFinishSavingWithError:contextInfo:), nil);
}
//NSString *file = [NSTemporaryDirectory() stringByAppendingPathComponent:moviePath];
//commented out for now
//NSString *destDir = #"/";
// [self.restClient uploadFile:#"itWorked.mov" toPath:destDir withParentRev:nil fromPath:moviePath];
//[self dismissViewControllerAnimated:YES completion:NULL];
//new core code
NSString *text = #"Hello world.";
NSString *filename = #"itWorked.mov";
NSString *localDir = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString *localPath = [localDir stringByAppendingPathComponent:filename];
[text writeToFile:localPath atomically:YES encoding:NSUTF8StringEncoding error:nil];
// Upload file to Dropbox
NSString *destDir = #"/";
[self.restClient uploadFile:filename toPath:destDir withParentRev:nil fromPath:moviePath];
[self dismissViewControllerAnimated:YES completion:NULL];
}
I am using below code to save and read saved clicked image file from document directory. Its working well for the first time but when i'm trying to read the saved image file for the second time, its showing me the image clicked during first time.
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingImage:(UIImage *)image
editingInfo:(NSDictionary *)editingInfo
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [documentsDirectory stringByAppendingPathComponent:
#"test.png" ];
NSFileManager* fileManager=[NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:path]) {
NSError* error;
[fileManager removeItemAtPath:path error:&error];
}
NSData* data = UIImagePNGRepresentation(image);
[data writeToFile:path atomically:YES];
[self.viewController dismissViewControllerAnimated:YES completion:nil];
}
Any idea why every time its returning me image clicked for the first time.
didFinishPickingImage: is deprecated since iOS3.
This should work:
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
if (!image) {
image = [info objectForKey:UIImagePickerControllerOriginalImage];
}
if (image) {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [documentsDirectory stringByAppendingPathComponent:#"test.png" ];
NSData* data = UIImagePNGRepresentation(image);
[data writeToFile:path atomically:YES];
[self.viewController dismissViewControllerAnimated:YES completion:nil];
}
[self dismissViewControllerAnimated:YES completion:nil];
}
Please check the documentation.