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Error Corrupt Jpeg Data Premature End Of Data Segment Iphone

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Caffe Corrupt Jpeg Data Premature End Of Data Segment

helping each other. Join them; it only takes a minute: Sign up ImageIO: JPEG Corrupt JPEG data: premature end of data segment iphone - how to catch this? up vote 8 down vote favorite 3 I get this error by downloading an image by HTTP. I have looked at the answer here but even the valid images don't return YES from the function. Any other ideas? The code to get the image is simple enough. This happens in a background thread. NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlString]]; UIImage *image = [UIImage imageWithData:data]; This is the function from that thread: - (BOOL)isJPEGValid:(NSData *)jpeg { if ([jpeg length] < 4) return NO; const char * bytes = (const char *)[jpeg bytes]; if (bytes[0] != 0xFF || bytes[1] != 0xD8) return NO; if (bytes[[jpeg length] - 2] != 0xFF || bytes[[jpeg length] - 1] != 0xD9) return NO; return YES; } iphone ios ios4 uiimage javax.imageio share|improve this question edited Feb 13 '12 at 20:28 iHunter 5,38232855 asked Feb 13 '12 at 17:50 jmosesman 46111023 add a comment| 1 Answer 1 active oldest votes up vote 12 down vote accepted Use an unsigned char. Then comparing should work. const unsigned char * bytes = (const unsigned char *)[jpeg bytes]; instead of const char * bytes = (const char *)[jpeg bytes]; share|improve this answer answered Apr 3 '12 at 9:55 Sigi 193110 +1 thank you, Sigi! –Jean Aug 9 '12 at 14:30 Yep this appears to work. Thanks! –jmosesman Sep 28 '12 at 23:01 It still shows the error: : ImageIO: JPEG Corrupt JPEG data: premature end of data segment. :( –Nikita P Aug 5 '13 at 8:44 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not

Sign in Pricing Blog Support Search GitHub This repository Watch 61 Star 1,713 Fork 162 Haneke/Haneke Code Issues 44 Pull requests 5 Projects 0 Pulse Graphs New issue : ImageIO: JPEG Corrupt JPEG data: premature end of data segment #4 Closed nullproduction opened this Issue Mar 8, 2014 · 6 comments Projects None yet Labels bug Milestone No milestone Assignees No one assigned 2 participants nullproduction commented Mar http://stackoverflow.com/questions/9265343/imageio-error-jpeg-corrupt-jpeg-data-premature-end-of-data-segment-iphone 8, 2014 Hi. Thank you for the lib. I get error for image : http://www.radio-t.com/images/cover.jpg : ImageIO: JPEG Corrupt JPEG data: premature end of data segment My device - IOS 7.0.4 / iphone 4s Screenshot with bug: https://www.dropbox.com/s/x4x7ljz7ef7pyg5/2014-03-08%2012.51.13.png nullproduction commented Mar 8, 2014 The simulator does not have this problem Haneke member hpique commented https://github.com/Haneke/Haneke/issues/4 Mar 8, 2014 Thanks for reporting this. I'll give it a look shortly. … On Mar 8, 2014 10:13 AM, "nullproduction" ***@***.***> wrote: The simulator does not have this problem -- Reply to this email directly or view it on GitHub<#4 (comment)> . Haneke member hpique commented Mar 8, 2014 I have an inkling of what might be going on. Can you reproduce this problem consistently? nullproduction commented Mar 8, 2014 I did something like this: - (void)viewDidLoad { [super viewDidLoad]; HNKCacheFormat *format = [[HNKCacheFormat alloc] initWithName:@"thumbnail"]; format.compressionQuality = 1; format.allowUpscaling = YES; format.diskCapacity = 50 * 1024 * 1024; format.preloadPolicy = HNKPreloadPolicyLastSession; format.scaleMode = HNKScaleModeAspectFill; [[HNKCache sharedCache] registerFormat:format]; UIImageView *img = [[UIImageView alloc] initWithFrame:CGRectMake(100, 100, 60, 60)]; [self.view addSubview:img]; [img hnk_setImageFromURL:[NSURL URLWithString:@"http://www.radio-t.com/images/cover.jpg"]]; } But now I was not able to repeat the problem, although it has been repeated several times in a row hpique pushed a commit that closed this issue Mar 8, 2014 Hermes Pique https://recalll.co/app/?q=ios%20-%20ImageIO:%20%3CERROR%3E%20JPEG%20Corrupt%20JPEG%20data:%20premature%20end%20of%20data%20segment%20iphone%20-%20how%20to%20catch%20this? of data s... View More at http://stackoverflow.com/questions/9265343/imageio-error-jpeg-cor... As said in comments https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=34327 '@' doesn't suppress this kind of error : "Corrupt JPEG data: premature end of data segment". However, it's work for other error like bad file passed to imagecreatefromjpeg. $output = exec("jpeginfo -c $imgDestinationPath"); $size = filesize($imgDestinationPath); if( strpos($output, (string)$size) !== false ) { corrupt jpeg $error = ""; $arrayTemp = explode($size, $output); $message = $arrayTemp[1]; if( strpos($message, "[OK]") === false ) { $error = trim($message); } } php - ob_start doesn't work with some functions - Stack Overflow View More at http://stackoverflow.com/questions/27817635/ob-start-doesnt-work-... A simple way to check if the JPEG data is complete or not is to check the corrupt jpeg data first and last two bytes for FF D8 and FF D9 respectively. Those two bytes identify the start and end of a JPEG file respectively. This would work as a solution for my purpose. But I am still curious how the error can be catch. so if I have the JPG represented as NSData from the iOS disk how would I check the last 2 digits? iphone - Catching error: Corrupt JPEG data: premature end of data segm... View More at http://stackoverflow.com/questions/3848280/catching-error-corrupt... In response to Slee's question above, this is the method I use: -(BOOL)dataIsValidJPEG:(NSData *)data { if (!data || data.length < 2) return NO; NSInteger totalBytes = data.length; const char *bytes = (const char*)[data bytes]; return (bytes[0] == (char)0xff && bytes[1] == (char)0xd8 && bytes[totalBytes-2] == (char)0xff && bytes[totalBytes-1] == (char)0xd9); } iphone - Catching error: Corrupt JPEG data: premature end of data segm... View More at http://stackoverflow.com/questions/3848280/catching-error-corrupt... Your code assumes all goes well, but you should really check so

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