I want to get nowplaying infomation.
So, following this code:
NSDictionary *info = [[MPNowPlayingInfoCenter defaultCenter] nowPlayingInfo];
NSString *title = [info valueForKey:MPMediaItemPropertyTitle];
NSLog(#"%#",title);
MPMusicPlayerController *pc = [MPMusicPlayerController iPodMusicPlayer];
MPMediaItem *playingItem = [pc nowPlayingItem];
if (playingItem) {
NSInteger mediaType = [[playingItem valueForProperty:MPMediaItemPropertyMediaType] integerValue];
if (mediaType == MPMediaTypeMusic) {
NSString *songTitle = [playingItem valueForProperty:MPMediaItemPropertyTitle];
NSString *albumTitle = [playingItem valueForProperty:MPMediaItemPropertyAlbumTitle];
NSString *artist = [playingItem valueForProperty:MPMediaItemPropertyArtist];
NSString *genre = [playingItem valueForProperty:MPMediaItemPropertyGenre];
TweetTextField.text = [NSString stringWithFormat:#"#nowplaying %# - %# / %# #%#", artist, songTitle, albumTitle,genre];
MPMediaItemArtwork *artwork = [playingItem valueForProperty:MPMediaItemPropertyArtwork];
CGSize newSize = CGSizeMake(250, 250);
UIGraphicsBeginImageContext(newSize);
[[artwork imageWithSize:CGSizeMake(100.0, 100.0)] drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
_imageView.image = newImage;
}
if (_imageView.image == nil){
} else {
_tableView.alpha=0.5;
}
}
But this code can get nowplaying infomation from Defautl iPod Application.
How to get nowplaying infomation in Thirdparty music application?
(e.g.: Mobile Safari, Youtube App, gMusic, Melodies etc).
I think this isn't possible. The documentation states that MPNowPlayingInfoCenter is only for setting information on the lock screen.
Here is a related question.
Related
I want to get a NSArray with all the UIImage from a Live Photo to create a GIF of that. I tried to make screenshots while animating the live photo but it doesn't work.
Can anyone help me?
Thanks!
First step, you need convert a Live Photo to Video, using this:
PHAssetResourceManager.defaultManager().writeDataForAssetResource(assetRes,
toFile: fileURL, options: nil, completionHandler:
{
// Video file has been written to path specified via fileURL
}
Finally, using this library to convert this to GIF, or you can search in google for another way: https://github.com/NSRare/NSGIF
Hope this will help you.
This is what I did to achieve the same thing as you requested.
PHFetchOptions *options = [[PHFetchOptions alloc] init];
options.sortDescriptors = #[[NSSortDescriptor sortDescriptorWithKey:#"creationDate" ascending:NO]];
options.predicate = [NSPredicate predicateWithFormat:#"mediaType == %d", PHAssetMediaTypeImage];
options.predicate = [NSPredicate predicateWithFormat:#"mediaSubtype == %d", PHAssetMediaSubtypePhotoLive];
options.includeAllBurstAssets = NO;
PHFetchResult *allLivePhotos = [PHAsset fetchAssetsWithOptions:options];
NSLog(#"Get total live count : %ld",(unsigned long)allLivePhotos.count);
NSMutableArray *arrAllLiveImagesGroups = [NSMutableArray array];
for (PHAsset *asset in allLivePhotos) {
[asset requestContentEditingInputWithOptions:nil
completionHandler:^(PHContentEditingInput *contentEditingInput, NSDictionary *info) {
NSURL *urlMov = [contentEditingInput.livePhoto valueForKey:#"videoURL"];
NSMutableArray *arrLive = [NSMutableArray array];
NSMutableArray *arrSingleLiveImagesGroup = [NSMutableArray array];
AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:urlMov options:nil];
AVAssetImageGenerator *generator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
generator.requestedTimeToleranceAfter = kCMTimeZero;
generator.requestedTimeToleranceBefore = kCMTimeZero;
for (Float64 i = 0; i < CMTimeGetSeconds(asset.duration) * 5 ; i++){
#autoreleasepool {
CMTime time = CMTimeMake(i, 5);
NSError *err;
CMTime actualTime;
CGImageRef image = [generator copyCGImageAtTime:time actualTime:&actualTime error:&err];
UIImage *generatedImage = [[UIImage alloc] initWithCGImage:image scale:1.0 orientation:UIImageOrientationDown];
[arrLive addObject:generatedImage];
CGImageRelease(image);
}
}
[arrSingleLiveImagesGroup addObject:arrLive];
[arrAllLiveImagesGroups addObject:arrSingleLiveImagesGroup];
}];
}
I am trying to overlay a recorded video with AvAssetReader and AvAssetWriter with some images. Following this tutorial, I am able to copy a video (and audio) into a new file. Now my objective is to overlay some of the initial video frames with some images with this code:
while ([assetWriterVideoInput isReadyForMoreMediaData] && !completedOrFailed)
{
// Get the next video sample buffer, and append it to the output file.
CMSampleBufferRef sampleBuffer = [assetReaderVideoOutput copyNextSampleBuffer];
CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
CVPixelBufferLockBaseAddress(pixelBuffer, 0);
EAGLContext *eaglContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
CIContext *ciContext = [CIContext contextWithEAGLContext:eaglContext options:#{kCIContextWorkingColorSpace : [NSNull null]}];
UIFont *font = [UIFont fontWithName:#"Helvetica" size:40];
NSDictionary *attributes = #{NSFontAttributeName:font, NSForegroundColorAttributeName:[UIColor lightTextColor]};
UIImage *img = [self imageFromText:#"test" :attributes];
CIImage *filteredImage = [[CIImage alloc] initWithCGImage:img.CGImage];
[ciContext render:filteredImage toCVPixelBuffer:pixelBuffer bounds:[filteredImage extent] colorSpace:CGColorSpaceCreateDeviceRGB()];
CVPixelBufferUnlockBaseAddress(pixelBuffer, 0);
if (sampleBuffer != NULL)
{
BOOL success = [assetWriterVideoInput appendSampleBuffer:sampleBuffer];
CFRelease(sampleBuffer);
sampleBuffer = NULL;
completedOrFailed = !success;
}
else
{
completedOrFailed = YES;
}
}
And to create image from text:
-(UIImage *)imageFromText:(NSString *)text :(NSDictionary *)attributes{
CGSize size = [text sizeWithAttributes:attributes];
UIGraphicsBeginImageContextWithOptions(size, NO, 0.0);
[text drawAtPoint:CGPointMake(0.0, 0.0) withAttributes:attributes];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
The video and audio are copied, but I haven't any text on my video.
Question 1: Why this code is not working?
Moreover, I want to be able to check the timecode of the current read frame. For example I would like to insert a text with the current timecode in the video.
I try this code following this tutorial:
AVAsset *localAsset = [AVAsset assetWithURL:mURL];
NSError *localError;
AVAssetReader *assetReader = [[AVAssetReader alloc] initWithAsset:localAsset error:&localError];
BOOL success = (assetReader != nil);
// Create asset reader output for the first timecode track of the asset
if (success) {
AVAssetTrack *timecodeTrack = nil;
// Grab first timecode track, if the asset has them
NSArray *timecodeTracks = [localAsset tracksWithMediaType:AVMediaTypeTimecode];
if ([timecodeTracks count] > 0)
timecodeTrack = [timecodeTracks objectAtIndex:0];
if (timecodeTrack) {
AVAssetReaderTrackOutput *timecodeOutput = [AVAssetReaderTrackOutput assetReaderTrackOutputWithTrack:timecodeTrack outputSettings:nil];
[assetReader addOutput:timecodeOutput];
} else {
NSLog(#"%# has no timecode tracks", localAsset);
}
}
But I get the log:
[...] has no timecode tracks
Question 2: Why my video hasn't any AVMediaTypeTimecode? Ad so how can I get the current frame timecode?
Thanks for your help
I found the solutions:
To overlay video frames, you need to fix the decompression settings:
NSString* key = (NSString*)kCVPixelBufferPixelFormatTypeKey;
NSNumber* value = [NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA];
NSDictionary* decompressionVideoSettings = [NSDictionary dictionaryWithObject:value forKey:key];
// If there is a video track to read, set the decompression settings for YUV and create the asset reader output.
assetReaderVideoOutput = [AVAssetReaderTrackOutput assetReaderTrackOutputWithTrack:assetVideoTrack outputSettings:decompressionVideoSettings];
To get the frame timestamp, you have to read the video informations and then use a counter to increment the current timestamp:
durationSeconds = CMTimeGetSeconds(asset.duration);
timePerFrame = 1.0 / (Float64)assetVideoTrack.nominalFrameRate;
totalFrames = durationSeconds * assetVideoTrack.nominalFrameRate;
Then in this loop
while ([assetWriterVideoInput isReadyForMoreMediaData] && !completedOrFailed)
You can found the timestamp:
CMSampleBufferRef sampleBuffer = [assetReaderVideoOutput copyNextSampleBuffer];
if (sampleBuffer != NULL){
CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
if (pixelBuffer) {
Float64 secondsIn = ((float)counter/totalFrames)*durationSeconds;
CMTime imageTimeEstimate = CMTimeMakeWithSeconds(secondsIn, 600);
mergeTime = CMTimeGetSeconds(imageTimeEstimate);
counter++;
}
}
I hope it could help!
i´m trying to obtain the imagen from this url[#"file:///var/mobile/Media/DCIM/100APPLE/IMG_0158.JPG"], but i can´t.
Always is nil.
this is my code:
NSData *data = [NSData dataWithContentsOfURL: #"file:///var/mobile/Media/DCIM/100APPLE/IMG_0158.JPG"];
UIImage *image = [UIImage imageWithData:data];
self.pruebaTmp.image = image;
i obtain the url with this code:
if (asset) {
// get photo info from this asset
PHImageRequestOptions * imageRequestOptions = [[PHImageRequestOptions alloc] init];
imageRequestOptions.synchronous = YES;
[[PHImageManager defaultManager]
requestImageDataForAsset:asset
options:imageRequestOptions
resultHandler:^(NSData *imageData, NSString *dataUTI,
UIImageOrientation orientation,
NSDictionary *info)
{
NSURL *path = [info objectForKey:#"PHImageFileURLKey"];
//asignamos el path de la imágen seleccionada en galeria
self.pathImagen = path;
}];
}
if someone could help i would be very grateful, because i can´t load the image with the url obtained.
you can`t not get UIimage or metadata from that url.
you can get UIImage from local Identifier of access
PHFetchResult *savedAssets = [PHAsset fetchAssetsWithLocalIdentifiers:#[localIdentifier] options:nil];
[savedAssets enumerateObjectsUsingBlock:^(PHAsset *asset, NSUInteger idx, BOOL *stop) {
//this gets called for every asset from its localIdentifier you saved
//PHImageRequestOptionsDeliveryModeHighQualityFormat
PHImageRequestOptions * imageRequestOptions = [[PHImageRequestOptions alloc] init];
imageRequestOptions.synchronous = NO;
imageRequestOptions.deliveryMode = PHImageRequestOptionsResizeModeFast;
imageRequestOptions.resizeMode = PHImageRequestOptionsResizeModeFast;
[[PHImageManager defaultManager]requestImageForAsset:asset targetSize:PHImageManagerMaximumSize contentMode:PHImageContentModeAspectFill options:imageRequestOptions resultHandler:^(UIImage * _Nullable result, NSDictionary * _Nullable info) {
NSLog(#"get image from result");
if (result) {
}
}];
imageRequestOptions = nil;
}];
I have a video that lasts a duration of 5 minutes now I want to add text in that video for a particular time of say 5 - 15 seconds.
Can any one help me out. I have tried below code for adding text to an image
CATextLayer *subtitle1Text = [[CATextLayer alloc] init];
[subtitle1Text setFont:#"Helvetica-Bold"];
[subtitle1Text setFontSize:36];
[subtitle1Text setFrame:CGRectMake(0, 0, size.width, 100)];
[subtitle1Text setString:_subTitle1.text];
[subtitle1Text setAlignmentMode:kCAAlignmentCenter];
[subtitle1Text setForegroundColor:[[UIColor whiteColor] CGColor]];
// 2 - The usual overlay
CALayer *overlayLayer = [CALayer layer];
[overlayLayer addSublayer:subtitle1Text];
overlayLayer.frame = CGRectMake(0, 0, size.width, size.height);
[overlayLayer setMasksToBounds:YES];
CALayer *parentLayer = [CALayer layer];
CALayer *videoLayer = [CALayer layer];
parentLayer.frame = CGRectMake(0, 0, size.width, size.height);
videoLayer.frame = CGRectMake(0, 0, size.width, size.height);
[parentLayer addSublayer:videoLayer];
[parentLayer addSublayer:overlayLayer];
composition.animationTool = [AVVideoCompositionCoreAnimationTool
videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:videoLayer inLayer:parentLayer];
Can one one help me how to do it for videos
Let's try the below method to edit a video frame by frame using AVFoundation.framework,
-(void)startEditingVideoAtURL:(NSURL *)resourceURL
{
NSError * error = nil;
// Temp File path to write the edited movie
NSURL * movieURL = [NSURL fileURLWithPath:[NSString stringWithFormat:#"%#%#", NSTemporaryDirectory(), resourceURL.lastPathComponent]];
NSFileManager * fm = [NSFileManager defaultManager];
NSError * error;
BOOL success = [fm removeItemAtPath:movieURL.path error:&error];
// Create AVAssetWriter to convert the images into movie
AVAssetWriter * videoWriter = [[AVAssetWriter alloc] initWithURL:movieURL fileType:AVFileTypeQuickTimeMovie error:&error];
NSParameterAssert(videoWriter);
AVAsset * avAsset = [[AVURLAsset alloc] initWithURL:resourceURL options:nil];
// Set your out put video frame here
NSDictionary * videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:
AVVideoCodecH264, AVVideoCodecKey,
[NSNumber numberWithInt:480.0], AVVideoWidthKey,
[NSNumber numberWithInt:480.0], AVVideoHeightKey,
nil];
// Create AVAssetWriterInput with video Settings
AVAssetWriterInput* videoWriterInput = [AVAssetWriterInput
assetWriterInputWithMediaType:AVMediaTypeVideo
outputSettings:videoSettings];
NSDictionary * sourcePixelBufferAttributesDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:kCVPixelFormatType_32BGRA], kCVPixelBufferPixelFormatTypeKey,
[NSNumber numberWithInt:480.0], kCVPixelBufferWidthKey,
[NSNumber numberWithInt:480.0], kCVPixelBufferHeightKey,
nil];
AVAssetWriterInputPixelBufferAdaptor * assetWriterPixelBufferAdaptor1 = [[AVAssetWriterInputPixelBufferAdaptor alloc] initWithAssetWriterInput:videoWriterInput sourcePixelBufferAttributes:sourcePixelBufferAttributesDictionary];
NSParameterAssert(videoWriterInput);
NSParameterAssert([videoWriter canAddInput:videoWriterInput]);
videoWriterInput.expectsMediaDataInRealTime = YES;
[videoWriter addInput:videoWriterInput];
NSError *aerror = nil;
// Create AVAssetReader to read the video files frame by frame
AVAssetReader * reader = [[AVAssetReader alloc] initWithAsset:avAsset error:&aerror];
NSArray * vTracks = [avAsset tracksWithMediaType:AVMediaTypeVideo];
AVAssetReaderTrackOutput * asset_reader_output = nil;
if (vTracks.count)
{
AVAssetTrack * videoTrack = [vTracks objectAtIndex:0];
videoWriterInput.transform = videoTrack.preferredTransform;
NSDictionary *videoOptions = [NSDictionary dictionaryWithObject:[NSNumber numberWithInt:kCVPixelFormatType_32BGRA] forKey:(id)kCVPixelBufferPixelFormatTypeKey];
asset_reader_output = [[AVAssetReaderTrackOutput alloc] initWithTrack:videoTrack outputSettings:videoOptions];
[reader addOutput:asset_reader_output];
}
else
{
[[NSNotificationCenter defaultCenter] postNotificationName:EDITOR_FAILED_NOTI object:resourceURL.path];
[reader cancelReading];
queueInProgress = NO;
[self removeCurrentVideo];
return;
}
//audio setup
AVAssetWriterInput * audioWriterInput = [AVAssetWriterInput
assetWriterInputWithMediaType:AVMediaTypeAudio
outputSettings:nil];
AVAssetReader * audioReader = [AVAssetReader assetReaderWithAsset:avAsset error:&error];
NSArray * aTrack = [avAsset tracksWithMediaType:AVMediaTypeAudio];
AVAssetReaderOutput * readerOutput = nil;
if (aTrack.count)
{
AVAssetTrack * audioTrack = [aTrack objectAtIndex:0];
readerOutput = [AVAssetReaderTrackOutput assetReaderTrackOutputWithTrack:audioTrack outputSettings:nil];
[audioReader addOutput:readerOutput];
}
NSParameterAssert(audioWriterInput);
NSParameterAssert([videoWriter canAddInput:audioWriterInput]);
audioWriterInput.expectsMediaDataInRealTime = NO;
[videoWriter addInput:audioWriterInput];
[videoWriter startWriting];
[videoWriter startSessionAtSourceTime:kCMTimeZero];
[reader startReading]; // Here the video reader starts the reading
dispatch_queue_t _processingQueue = dispatch_queue_create("assetAudioWriterQueue", NULL);
[videoWriterInput requestMediaDataWhenReadyOnQueue:_processingQueue usingBlock:
^{
while ([videoWriterInput isReadyForMoreMediaData])
{
CMSampleBufferRef sampleBuffer;
if ([reader status] == AVAssetReaderStatusReading &&
(sampleBuffer = [asset_reader_output copyNextSampleBuffer]))
{
CMTime currentTime = CMSampleBufferGetPresentationTimeStamp(sampleBuffer);
CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
CIImage * _ciImage = [CIImage imageWithCVPixelBuffer:imageBuffer];
CVPixelBufferLockBaseAddress(imageBuffer,0);
size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);
size_t width = CVPixelBufferGetWidth(imageBuffer);
size_t height = CVPixelBufferGetHeight(imageBuffer);
void * baseAddress = CVPixelBufferGetBaseAddress(imageBuffer);
size_t bufferSize = CVPixelBufferGetDataSize(imageBuffer);
CGDataProviderRef dataProvider = CGDataProviderCreateWithData(NULL, baseAddress, bufferSize, NULL);
CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();
CGDataProviderRelease(dataProvider);
// Add your text drawing code here
CVPixelBufferUnlockBaseAddress(imageBuffer, 0);
CGColorSpaceRelease(rgbColorSpace);
BOOL result = [assetWriterPixelBufferAdaptor1 appendPixelBuffer:imageBuffer withPresentationTime:currentTime];
CVPixelBufferRelease(imageBuffer);
CFRelease(sampleBuffer);
if (!result)
{
dispatch_async(dispatch_get_main_queue(), ^
{
[[NSNotificationCenter defaultCenter] postNotificationName:EDITOR_FAILED_NOTI object:resourceURL.path];
[reader cancelReading];
queueInProgress = NO;
[self removeCurrentVideo];
});
break;
}
}
else
{
[videoWriterInput markAsFinished]; // This will called, once video write done
switch ([reader status])
{
case AVAssetReaderStatusReading:
// the reader has more for other tracks, even if this one is done
break;
case AVAssetReaderStatusCompleted:
{
if (!readerOutput)
{
if ([videoWriter respondsToSelector:#selector(finishWritingWithCompletionHandler:)])
[videoWriter finishWritingWithCompletionHandler:^
{
dispatch_async(dispatch_get_main_queue(), ^
{
});
}];
else
{
if ([videoWriter finishWriting])
{
dispatch_async(dispatch_get_main_queue(), ^
{
});
}
}
break;
}
[audioReader startReading];
[videoWriter startSessionAtSourceTime:kCMTimeZero];
dispatch_queue_t mediaInputQueue = dispatch_queue_create("mediaInputQueue", NULL);
[audioWriterInput requestMediaDataWhenReadyOnQueue:mediaInputQueue usingBlock:^
{
while (audioWriterInput.readyForMoreMediaData) {
CMSampleBufferRef nextBuffer;
if ([audioReader status] == AVAssetReaderStatusReading &&
(nextBuffer = [readerOutput copyNextSampleBuffer]))
{
if (nextBuffer)
{
[audioWriterInput appendSampleBuffer:nextBuffer];
}
CFRelease(nextBuffer);
}else
{
[audioWriterInput markAsFinished];
switch ([audioReader status])
{
case AVAssetReaderStatusCompleted:
if ([videoWriter respondsToSelector:#selector(finishWritingWithCompletionHandler:)])
[videoWriter finishWritingWithCompletionHandler:^
{
}];
else
{
if ([videoWriter finishWriting])
{
}
}
break;
}
}
}
}
];
break;
}
// your method for when the conversion is done
// should call finishWriting on the writer
//hook up audio track
case AVAssetReaderStatusFailed:
{
break;
}
}
break;
}
}
}
];
}
Thanks!
i want to take a screenshot of a video on my ipad app.
I searched on SO, and i found a lot of sample code. I tried everything but nothing seem to work.
I tried all of this methods:
1) Try with : MPMoviePlayerController
- (void) previewWithPlayer:(NSString*)path image:(UIImageView*)imView
{
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:path]];
UIImage *thumbnail = [player thumbnailImageAtTime:1.0 timeOption:MPMovieTimeOptionNearestKeyFrame];
[player stop];
[player release];
imView.image = thumbnail;
}
2) Try with : AVAssetImageGenerator - v1
- (void) generateImage:(NSString*)path image:(UIImageView*)imView
{
AVAsset *asset = [AVAsset assetWithURL:[NSURL URLWithString:path]];
AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc]initWithAsset:asset];
CMTime time = CMTimeMake(1, 1);
UIImage *thumbnail = [UIImage imageWithCGImage:[imageGenerator copyCGImageAtTime:time actualTime:NULL error:NULL]];
imView.image = thumbnail;
}
13) Try with : AVAssetImageGenerator - v2
- (void) generateImage:(NSString*)path image:(UIImageView*)imView
{
AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:[NSURL URLWithString:path] options:nil];
AVAssetImageGenerator *generator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
generator.appliesPreferredTrackTransform=TRUE;
[asset release];
CMTime thumbTime = CMTimeMakeWithSeconds(2,30);
AVAssetImageGeneratorCompletionHandler handler = ^(CMTime requestedTime, CGImageRef im, CMTime actualTime, AVAssetImageGeneratorResult result, NSError *error){
if (result != AVAssetImageGeneratorSucceeded) {
NSLog(#"couldn't generate thumbnail, error:%#", error);
}
UIImage *thumbImg = [[UIImage imageWithCGImage:im] retain];
imView.image = thumbImg;
[generator release];
};
CGSize maxSize = CGSizeMake(320, 180);
generator.maximumSize = maxSize;
[generator generateCGImagesAsynchronouslyForTimes:[NSArray arrayWithObject:[NSValue valueWithCMTime:thumbTime]] completionHandler:handler];
}
But nothig works.
I tried with MOV, MP4, nothing.
Path is correct, video is working.
NSString *fPath = [[NSBundle mainBundle] pathForResource:#"VideoA" ofType:#"mp4"];
NSLog(#"%#", fPath);
[self generateImage:fPath image:_ImgA];
What's could be the problem? My image view show nothing and no error are returned.
iOS is 6.0/5.1, on iPad simulator/device.
Video is 854×480 pixels, H.264, AAC. About 30Mb of size.
please help me because i'm going crazy with this issue.
thanks.
edit
on device return this error:
couldn't generate thumbnail, error:Error Domain=NSURLErrorDomain
Code=-1 "unknown error" UserInfo=0x1e0a2f30
{NSUnderlyingError=0x1e0a3900 "The operation couldn’t be completed.
(OSStatus error -12935.)", NSLocalizedDescription=unknown error}
Solved.
The trick: use fileURLWithPath:, not URLWithString:. Apparently the difference is really, really significant.
thanks to Noah. https://stackoverflow.com/a/4201419/88461