CGImageRef grayscaleImage;
{
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray();
CGContextRef bitmapCtx = CGBitmapContextCreate(bwbuffer, width, height, 8, width, colorSpace, (CGBitmapInfo)kCGImageAlphaNone);
grayscaleImage = CGBitmapContextCreateImage(bitmapCtx);
CFRelease(bitmapCtx);
CFRelease(colorSpace);
}
UIImage *temp = [[UIImage alloc] initWithCGImage:grayscaleImage];
CFStringRef UTI= (CFStringRef)@"public.heic";
NSMutableData *newImageData = [NSMutableData data];
CGImageDestinationRef destination = CGImageDestinationCreateWithData((__bridge CFMutableDataRef)newImageData,UTI,1,NULL);
CGImageDestinationAddImage(destination, temp.CGImage, (__bridge CFDictionaryRef)metaDataDictNew);
CGImageDestinationFinalize(destination);
This code running on iOS15. However iOS16 can't write grayscale HEIC image file.RGB image file is OK.
The following were error message on console of xcode.
writeImageAtIndex:867: *** CMPhotoCompressionSessionAddImage: err = kCMPhotoError_InvalidData [-17102] (codec: 'hvc1')
I can't find this error code in the Apple Support site also Documentation.
Best regards.
toshihikotambo
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
Hello All.
iOS15 can't play sound sound only Local Notification.
Before iOS15 I can use following code.title, body and subtitle is @"" (No charactor).
UNMutableNotificationContent* content = [[UNMutableNotificationContent alloc] init];
content.title = @"";
content.body = @"";
content.subtitle = @"";
content.sound = [UNNotificationSound soundNamed:@"test"];
When iOS15, I need add content.title for play sound. I don't want display Notification on banner and notification center also Lock Screen.
I want use Sound only Local Notification. Is it a specification of iOS15 or BUGS?