Please can anyone provide any sample code to save video after recording.
I m able to record video using UIImagePickerController.
if (canShootVideo) {
UIImagePickerController *videoRecorder = [[UIImagePickerController alloc] init];
videoRecorder.sourceType = UIImagePickerControllerSourceTypeCamera;
videoRecorder.delegate = self;
NSArray *mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
NSArray *videoMediaTypesOnly = [mediaTypes filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:#"(SELF contains %#)", #"movie"]];
BOOL movieOutputPossible = (videoMediaTypesOnly != nil);
if (movieOutputPossible) {
videoRecorder.mediaTypes = videoMediaTypesOnly;
[self presentModalViewController:videoRecorder animated:YES];
}
[videoRecorder release];
}
but how to save it. Can anyone please tell.
Thanks in advance
- (void)saveVideo:(NSURL *)videoUrl {
NSData *videoData = [NSData dataWithContentsOfURL:videoUrl];
[videoData writeToFile:#"YOUR_PATH_HERE" atomically:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *type = [mediaDict objectForKey:UIImagePickerControllerMediaType];
if ([type isEqualToString:(NSString *)kUTTypeVideo] ||
[type isEqualToString:(NSString *)kUTTypeMovie]) { // movie != video
NSURL *videoURL [mediaDict objectForKey:UIImagePickerControllerMediaURL];
[self saveVideo:videoUrl];
}
}
This is for the case you want to save the video into some file path that you can control. You can save into "Saved Photos" as well
Related
How can I save an image (like using UIImageWriteToSavedPhotosAlbum() method) with a filename of my choice to the private/var folder?
Kenny, you had the answer! For illustration I always think code is more helpful.
//I do this in the didFinishPickingImage:(UIImage *)img method
NSData* imageData = UIImageJPEGRepresentation(img, 1.0);
//save to the default 100Apple(Camera Roll) folder.
[imageData writeToFile:#"/private/var/mobile/Media/DCIM/100APPLE/customImageFilename.jpg" atomically:NO];
UIImageWriteToSavedPhotosAlbum() is only used for saving to the photos camera roll. To save to a custom folder, you need to convert the UIImage into NSData with UIImageJPEGRepresentation() or UIImagePNGRepresentation(), then save this NSData to anywhere you like.
You can use below code, without use of ALAssetsLibrary...
NSString *fileName;
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:^{
if( [picker sourceType] == UIImagePickerControllerSourceTypeCamera )
{
UIImageWriteToSavedPhotosAlbum(image,nil, nil, nil);
[self performSelector:#selector(GetImageName) withObject:nil afterDelay:0.5];
}
else
{
NSURL *refURL = [info valueForKey:UIImagePickerControllerReferenceURL];
PHFetchResult *result = [PHAsset fetchAssetsWithALAssetURLs:#[refURL] options:nil];
fileName = [[result firstObject] filename];
}
}];
-(void)GetImageName
{
NSString *str =#"";
PHFetchOptions *fetchOptions = [[PHFetchOptions alloc] init];
fetchOptions.sortDescriptors = #[[NSSortDescriptor sortDescriptorWithKey:#"creationDate" ascending:YES]];
PHFetchResult *fetchResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:fetchOptions];
if (fetchResult != nil && fetchResult.count > 0) {
str = [[fetchResult lastObject] filename];
}
fileName = str;
}
I've been searching this forum up and down but I couldn't find what I really need. I want to get raw image data from the camera. Up till now I tried to get the data out of the imageDataSampleBuffer from that method captureStillImageAsynchronouslyFromConnection:completionHandler: and to write it to an NSData object, but that didn't work.
Maybe I'm on the wrong track or maybe I'm just doing it wrong.
What I don't want is for the image to be compressed in any way.
The easy way is to use jpegStillImageNSDataRepresentation: from AVCaptureStillImageOutput, but like I said I don't want it to be compressed.
Thanks!
This is how i do it:
1: I first open the camera using:
- (void)openCamera
{
imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes = [NSArray arrayWithObjects:
(NSString *) kUTTypeImage,
(NSString *) kUTTypeMovie, nil];
imagePicker.allowsEditing = NO;
[self presentModalViewController:imagePicker animated:YES];
}
else {
lblError.text = NSLocalizedStringFromTable(#"noCameraFound", #"Errors", #"");
}
}
When the picture is taken this method gets called:
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
// Save and get the path of the image
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
if([mediaType isEqualToString:(NSString *)kUTTypeImage])
{
// Save the image
image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
[library writeImageToSavedPhotosAlbum:[image CGImage] orientation:(ALAssetOrientation)[image imageOrientation] completionBlock:^(NSURL *assetURL, NSError *error){
if(!error) {
//Save path and location to database
NSString *pathLocation = [[NSString alloc] initWithFormat:#"%#", assetURL];
} else {
NSLog(#"CameraViewController: Error on saving image : %# {imagePickerController}", error);
}
}];
}
[imagePicker dismissModalViewControllerAnimated:YES];
}
Then with that path i get the picture from the library in FULL resolution (using the "1"):
-(void)preparePicture: (NSString *) filePathPicture{
ALAssetsLibraryAssetForURLResultBlock resultBlock = ^(ALAsset *myasset)
{
if(myasset != nil){
ALAssetRepresentation *assetRep = [myasset defaultRepresentation];
CGImageRef imageRef = [assetRep fullResolutionImage];
if (imageRef) {
NSData *imageData = UIImageJPEGRepresentation([UIImage imageWithCGImage:imageRef], 1);
}
}else {
//error
}
};
ALAssetsLibraryAccessFailureBlock failureBlock = ^(NSError *error)
{
NSString *errorString = [NSString stringWithFormat:#"can't get image, %#",[error localizedDescription]];
NSLog(#"%#", errorString);
};
if(filePathPicture && [filePathPicture length])
{
NSURL *assetUrl = [NSURL URLWithString:filePathPicture];
ALAssetsLibrary *assetslibrary = [[ALAssetsLibrary alloc] init];
[assetslibrary assetForURL:assetUrl
resultBlock:resultBlock
failureBlock:failureBlock];
}
}
Hope this helps you a bit further :-).
In my APP im saving the video to photolibrary using UISaveVideoAtPathToSavedPhotosAlbum. I am getting the path of the video but i am not able to play this video. Can any 1 help me with this on how to retrieve the saved video.Thanks in advance.I used the Code shown below.
-(IBAction) getPhoto:(id) sender {
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
if((UIButton *) sender == choosePhotoBtn) {
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
picker.mediaTypes = [NSArray arrayWithObjects:(NSString *)kUTTypeMovie, (NSString *)kUTTypeImage, nil];
} else {
picker.mediaTypes = [NSArray arrayWithObjects:(NSString *)kUTTypeMovie, (NSString *)kUTTypeImage, nil];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
[self presentModalViewController:picker animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *tempFilePath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
UISaveVideoAtPathToSavedPhotosAlbum(tempFilePath, self, #selector(video:didFinishSavingWithError:contextInfo:), nil);
NSLog(#"temp path %#",tempFilePath);
[picker dismissModalViewControllerAnimated:YES];
}
NSURL *url = [NSURL fileURLWithPath:tempFilePath];
and Play the url using: "MPMoviePlayerController"
The path that is returned by this function needs a suffix. try this
NSString *videoPath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
NSURL *videoURL = [NSURL URLWithString:[NSString stringWithFormat:#"file://localhost%#", videoPath]];
I am using UIImagePickerController that gives user to be able select an existing photo or use the camera to take an image at that time. And i can show that image in my application with UIImageView.
Now i want to use this ability for movies also. But i couldn't find any way to show the selected movie as an image in my app, just like the Photos app. as you know you can see photos and movies in the same list.
-(IBAction) selectImageSelected : (id)sender
{
actionSheet = [[UIActionSheet alloc] initWithTitle:#"Select Image"
delegate:self
cancelButtonTitle:#"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:#"Take Picture", #"Select from gallery", nil];
[actionSheet showInView:self.parentViewController.tabBarController.view];
}
- (void)actionSheet:(UIActionSheet *)_actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
if(buttonIndex==0)
{
if( ![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] )
{
[AlertHandler showAlertMessage:[ErrorMessages getCameraNotFoundMsg] withTitle:#"No Camera Detected"];
return;
}
else
{
imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentModalViewController:imagePicker animated:YES];
}
}
else if(buttonIndex==1)
{
imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes =[UIImagePickerController availableMediaTypesForSourceType:imagePicker.sourceType];
[self presentModalViewController:imagePicker animated:YES];
}
else
{
[actionSheet dismissWithClickedButtonIndex:2 animated:YES];
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:#"public.image"]){
// UIImage *selectedImage = [info objectForKey:UIImagePickerControllerOriginalImage];
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
NSLog(#"found an image");
// [UIImageJPEGRepresentation(image, 1.0f) writeToFile:[self findUniqueSavePath] atomically:YES];
// SETIMAGE(image);
CFShow([[NSFileManager defaultManager] directoryContentsAtPath:[NSHomeDirectory() stringByAppendingString:#"/Documents"]]);
}
else if ([mediaType isEqualToString:#"public.movie"]){
NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
NSLog(#"found a video");
NSData *webData = [NSData dataWithContentsOfURL:videoURL];
//NSData *video = [[NSString alloc] initWithContentsOfURL:videoURL];
// [webData writeToFile:[self findUniqueMoviePath] atomically:YES];
CFShow([[NSFileManager defaultManager] directoryContentsAtPath:[NSHomeDirectory() stringByAppendingString:#"/Documents"]]);
CGSize sixzevid=CGSizeMake(imagePicker.view.bounds.size.width,imagePicker.view.bounds.size.height-100);
UIGraphicsBeginImageContext(sixzevid);
[imagePicker.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
eventButton.imageView.image=viewImage;
// NSLog(videoURL);
}
[picker dismissModalViewControllerAnimated:YES];
}
/*
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo1
{
[imagePicker dismissModalViewControllerAnimated:YES];
imagePicker.view.hidden = YES;
eventButton.imageView.image = image;
imageSelected = YES;
}
*/
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
[imagePicker dismissModalViewControllerAnimated:YES];
imageSelected = NO;
}
The -thumbnailImageAtTime:timeOption: method of MPMoviePlayerController looks like it might help you get an image to display.
To have the picker view with only movie files
replace
imagePicker.mediaTypes =[UIImagePickerController availableMediaTypesForSourceType:imagePicker.sourceType];
with
picker.mediaTypes = [NSArray arrayWithObject:#"public.movie"];
How can I save an image (like using UIImageWriteToSavedPhotosAlbum() method) with a filename of my choice to the private/var folder?
Kenny, you had the answer! For illustration I always think code is more helpful.
//I do this in the didFinishPickingImage:(UIImage *)img method
NSData* imageData = UIImageJPEGRepresentation(img, 1.0);
//save to the default 100Apple(Camera Roll) folder.
[imageData writeToFile:#"/private/var/mobile/Media/DCIM/100APPLE/customImageFilename.jpg" atomically:NO];
UIImageWriteToSavedPhotosAlbum() is only used for saving to the photos camera roll. To save to a custom folder, you need to convert the UIImage into NSData with UIImageJPEGRepresentation() or UIImagePNGRepresentation(), then save this NSData to anywhere you like.
You can use below code, without use of ALAssetsLibrary...
NSString *fileName;
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:^{
if( [picker sourceType] == UIImagePickerControllerSourceTypeCamera )
{
UIImageWriteToSavedPhotosAlbum(image,nil, nil, nil);
[self performSelector:#selector(GetImageName) withObject:nil afterDelay:0.5];
}
else
{
NSURL *refURL = [info valueForKey:UIImagePickerControllerReferenceURL];
PHFetchResult *result = [PHAsset fetchAssetsWithALAssetURLs:#[refURL] options:nil];
fileName = [[result firstObject] filename];
}
}];
-(void)GetImageName
{
NSString *str =#"";
PHFetchOptions *fetchOptions = [[PHFetchOptions alloc] init];
fetchOptions.sortDescriptors = #[[NSSortDescriptor sortDescriptorWithKey:#"creationDate" ascending:YES]];
PHFetchResult *fetchResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:fetchOptions];
if (fetchResult != nil && fetchResult.count > 0) {
str = [[fetchResult lastObject] filename];
}
fileName = str;
}