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2014/10/15 ¤U¤È 10:04:32

iphone Programming Glossary: baseaddress

how to convert a CVImageBufferRef to UIImage

http://stackoverflow.com/questions/3152259/how-to-convert-a-cvimagebufferref-to-uiimage

sampleBuffer Lock the image buffer CVPixelBufferLockBaseAddress imageBuffer 0 Get information about the image uint8_t baseAddress uint8_t CVPixelBufferGetBaseAddress imageBuffer size_t bytesPerRow CVPixelBufferGetBytesPerRow imageBuffer size_t width.. CVImageBufferRef CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst CGImageRef newImage CGBitmapContextCreateImage.. returns null. i have no idea why. iphone uiimage share improve this question The way that you are passing on the baseAddress presumes that the image data is in the form ACCC where C is some color component R G B . If you've set up your AVCaptureSession..

UIImage created from CMSampleBufferRef not displayed in UIImageView?

http://stackoverflow.com/questions/3305862/uiimage-created-from-cmsamplebufferref-not-displayed-in-uiimageview

CMSampleBufferGetImageBuffer sampleBuffer CVPixelBufferLockBaseAddress imageBuffer 0 Lock the image buffer uint8_t baseAddress uint8_t CVPixelBufferGetBaseAddressOfPlane imageBuffer 0 Get information of the image size_t bytesPerRow CVPixelBufferGetBytesPerRow.. imageBuffer CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst CGImageRef newImage CGBitmapContextCreateImage..

iPhone Watermark on recorded Video.

http://stackoverflow.com/questions/7205820/iphone-watermark-on-recorded-video

CMSampleBufferGetImageBuffer sampleBuffer CVPixelBufferLockBaseAddress imageBuffer 0 Lock the image buffer uint8_t baseAddress uint8_t CVPixelBufferGetBaseAddressOfPlane imageBuffer 0 Get information of the image size_t bytesPerRow CVPixelBufferGetBytesPerRow.. imageBuffer CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst CGImageRef newImage CGBitmapContextCreateImage..

kCVPixelFormatType_420YpCbCr8BiPlanarFullRange frame to UIImage conversion

http://stackoverflow.com/questions/8838481/kcvpixelformattype-420ypcbcr8biplanarfullrange-frame-to-uiimage-conversion

the pixel buffer CVPixelBufferLockBaseAddress imageBuffer 0 Get the number of bytes per row for the pixel buffer void baseAddress CVPixelBufferGetBaseAddress imageBuffer Get the number of bytes per row for the pixel buffer size_t bytesPerRow CVPixelBufferGetBytesPerRow.. Create a bitmap graphics context with the sample buffer data CGContextRef context CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst Create a Quartz image from.. imageBuffer 0 size_t width CVPixelBufferGetWidth imageBuffer size_t height CVPixelBufferGetHeight imageBuffer uint8_t baseAddress CVPixelBufferGetBaseAddress imageBuffer CVPlanarPixelBufferInfo_YCbCrBiPlanar bufferInfo CVPlanarPixelBufferInfo_YCbCrBiPlanar..

iPhone take augmented reality screenshot with AVCaptureVideoPreviewLayer

http://stackoverflow.com/questions/8980847/iphone-take-augmented-reality-screenshot-with-avcapturevideopreviewlayer

imageBuffer kCVPixelFormatType_32BGRA return CVPixelBufferLockBaseAddress imageBuffer 0 uint8_t baseAddress uint8_t CVPixelBufferGetBaseAddress imageBuffer size_t bytesPerRow CVPixelBufferGetBytesPerRow imageBuffer size_t width.. CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst newImage CGBitmapContextCreateImage.. colorSpace CGContextRelease newContext else uint8_t tempAddress malloc 640 4 480 memcpy tempAddress baseAddress bytesPerRow height baseAddress tempAddress CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext..

AVCaptureSession specify resolution and quality of captured images obj-c iphone app

http://stackoverflow.com/questions/9312832/avcapturesession-specify-resolution-and-quality-of-captured-images-obj-c-iphone

the pixel buffer CVPixelBufferLockBaseAddress imageBuffer 0 Get the number of bytes per row for the pixel buffer void baseAddress CVPixelBufferGetBaseAddress imageBuffer Get the number of bytes per row for the pixel buffer size_t bytesPerRow CVPixelBufferGetBytesPerRow.. Create a bitmap graphics context with the sample buffer data CGContextRef context CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst Create a Quartz image from..

How can I mute the capture sound in AVFoundation?

http://stackoverflow.com/questions/9557081/how-can-i-mute-the-capture-sound-in-avfoundation

sampleBuffer Lock the image buffer CVPixelBufferLockBaseAddress imageBuffer 0 Get information about the image uint8_t baseAddress uint8_t CVPixelBufferGetBaseAddress imageBuffer size_t bytesPerRow CVPixelBufferGetBytesPerRow imageBuffer size_t width.. CVImageBufferRef CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef newContext CGBitmapContextCreate baseAddress width height 8 bytesPerRow colorSpace kCGBitmapByteOrder32Little kCGImageAlphaPremultipliedFirst CGImageRef newImage CGBitmapContextCreateImage..