You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
160 lines
8.5 KiB
160 lines
8.5 KiB
5 years ago
|
/*
|
||
|
|
* CVImageBuffer.h
|
||
|
|
* CoreVideo
|
||
|
|
*
|
||
|
|
* Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*! @header CVImageBuffer.h
|
||
|
|
@copyright 2004 Apple Computer, Inc. All rights reserved.
|
||
|
|
@availability Mac OS X 10.4 or later
|
||
|
|
@discussion CVImageBufferRef types are abstract and define various attachments and convenience
|
||
|
|
calls for retreiving image related bits of data.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if !defined(__COREVIDEO_CVIMAGEBUFFER_H__)
|
||
|
|
#define __COREVIDEO_CVIMAGEBUFFER_H__ 1
|
||
|
|
|
||
|
|
#include <TargetConditionals.h>
|
||
|
|
|
||
|
|
#if TARGET_OS_MAC
|
||
|
|
#include <ApplicationServices/ApplicationServices.h>
|
||
|
|
#include <QuartzCore/CVBuffer.h>
|
||
|
|
#else
|
||
|
|
#pragma warning (disable: 4068) // ignore unknown pragmas
|
||
|
|
#include <CVBuffer.h>
|
||
|
|
#include <CGGeometry.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#pragma mark CVImageBufferRef attachment keys
|
||
|
|
|
||
|
|
#if TARGET_OS_MAC
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCGColorSpaceKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CGColorSpaceRef
|
||
|
|
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCleanApertureKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFDictionary containing the following four keys
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCleanApertureWidthKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCleanApertureHeightKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCleanApertureHorizontalOffsetKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferCleanApertureVerticalOffsetKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferPreferredCleanApertureKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFDictionary containing same keys as kCVImageBufferCleanApertureKey
|
||
|
|
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldCountKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldDetailKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString with one of the following four values
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldDetailTemporalTopFirst AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldDetailTemporalBottomFirst AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldDetailSpatialFirstLineEarly AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferFieldDetailSpatialFirstLineLate AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferPixelAspectRatioKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFDictionary with the following two keys
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferPixelAspectRatioHorizontalSpacingKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferPixelAspectRatioVerticalSpacingKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferDisplayDimensionsKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFDictionary with the following two keys
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferDisplayWidthKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferDisplayHeightKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber
|
||
|
|
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferGammaLevelKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFNumber describing the gamma level
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferYCbCrMatrixKey AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString describing the color matrix for YCbCr->RGB. This key can be one of the following values:
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferYCbCrMatrix_ITU_R_709_2 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferYCbCrMatrix_ITU_R_601_4 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
CV_EXPORT const CFStringRef kCVImageBufferYCbCrMatrix_SMPTE_240M_1995 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER; // CFString
|
||
|
|
|
||
|
|
#else
|
||
|
|
#define kCVImageBufferCGColorSpaceKey CFSTR("CGColorSpace")
|
||
|
|
|
||
|
|
#define kCVImageBufferCleanApertureKey CFSTR("CVCleanAperture")
|
||
|
|
#define kCVImageBufferCleanApertureWidthKey CFSTR("Width")
|
||
|
|
#define kCVImageBufferCleanApertureHeightKey CFSTR("Height")
|
||
|
|
#define kCVImageBufferCleanApertureHorizontalOffsetKey CFSTR("HorizontalOffset")
|
||
|
|
#define kCVImageBufferCleanApertureVerticalOffsetKey CFSTR("VerticalOffset")
|
||
|
|
#define kCVImageBufferPreferredCleanApertureKey CFSTR("CVPreferredCleanAperture")
|
||
|
|
|
||
|
|
#define kCVImageBufferFieldCountKey CFSTR("CVFieldCount")
|
||
|
|
#define kCVImageBufferFieldDetailKey CFSTR("CVFieldDetail")
|
||
|
|
#define kCVImageBufferFieldDetailTemporalTopFirst CFSTR("TemporalTopFirst")
|
||
|
|
#define kCVImageBufferFieldDetailTemporalBottomFirst CFSTR("TemporalBottomFirst")
|
||
|
|
#define kCVImageBufferFieldDetailSpatialFirstLineEarly CFSTR("SpatialFirstLineEarly")
|
||
|
|
#define kCVImageBufferFieldDetailSpatialFirstLineLate CFSTR("SpatialFirstLineLate")
|
||
|
|
|
||
|
|
#define kCVImageBufferPixelAspectRatioKey CFSTR("CVPixelAspectRatio")
|
||
|
|
#define kCVImageBufferPixelAspectRatioHorizontalSpacingKey CFSTR("HorizontalSpacing")
|
||
|
|
#define kCVImageBufferPixelAspectRatioVerticalSpacingKey CFSTR("VerticalSpacing")
|
||
|
|
|
||
|
|
#define kCVImageBufferDisplayDimensionsKey CFSTR("CVDisplayDimensions")
|
||
|
|
#define kCVImageBufferDisplayWidthKey CFSTR("Width")
|
||
|
|
#define kCVImageBufferDisplayHeightKey CFSTR("Height")
|
||
|
|
|
||
|
|
|
||
|
|
#define kCVImageBufferGammaLevelKey CFSTR("CVImageBufferGammaLevel")
|
||
|
|
#define kCVImageBufferYCbCrMatrixKey CFSTR("CVImageBufferYCbCrMatrix")
|
||
|
|
#define kCVImageBufferYCbCrMatrix_ITU_R_709_2 CFSTR("CVImageBufferYCbCrMatrix_ITU_R_709_2")
|
||
|
|
#define kCVImageBufferYCbCrMatrix_ITU_R_601_4 CFSTR("CVImageBufferYCbCrMatrix_ITU_R_601_4")
|
||
|
|
#define kCVImageBufferYCbCrMatrix_SMPTE_240M_1995 CFSTR("CVImageBufferYCbCrMatrix_SMPTE_240M_1995")
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#pragma mark CVImageBufferRef
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@typedef CVImageBufferRef
|
||
|
|
@abstract Base type for all CoreVideo image buffers
|
||
|
|
|
||
|
|
*/
|
||
|
|
typedef CVBufferRef CVImageBufferRef;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function CVImageBufferGetEncodedSize
|
||
|
|
@abstract Returns the full encoded dimensions of a CVImageBuffer. For example, for an NTSC DV frame this would be 720x480
|
||
|
|
@discussion Note: When creating a CIImage from a CVImageBuffer, this is the call you should use for retrieving the image size.
|
||
|
|
@param imageBuffer A CVImageBuffer that you wish to retrieve the encoded size from.
|
||
|
|
@result A CGSize returning the full encoded size of the buffer
|
||
|
|
Returns zero size if called with a non-CVImageBufferRef type or NULL.
|
||
|
|
*/
|
||
|
|
CV_EXPORT CGSize CVImageBufferGetEncodedSize(CVImageBufferRef imageBuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function CVImageBufferGetDisplaySize
|
||
|
|
@abstract Returns the nominal output display size (in square pixels) of a CVImageBuffer.
|
||
|
|
For example, for an NTSC DV frame this would be 640x480
|
||
|
|
@param imageBuffer A CVImageBuffer that you wish to retrieve the display size from.
|
||
|
|
@result A CGSize returning the nominal display size of the buffer
|
||
|
|
Returns zero size if called with a non-CVImageBufferRef type or NULL.
|
||
|
|
*/
|
||
|
|
CV_EXPORT CGSize CVImageBufferGetDisplaySize(CVImageBufferRef imageBuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function CVImageBufferGetCleanRect
|
||
|
|
@abstract Returns the source rectangle of a CVImageBuffer that represents the clean aperture
|
||
|
|
of the buffer in encoded pixels. For example, an NTSC DV frame would return a CGRect with an
|
||
|
|
origin of 8,0 and a size of 704,480.
|
||
|
|
Note that the origin of this rect always the lower left corner. This is the same coordinate system as
|
||
|
|
used by CoreImage.
|
||
|
|
@param imageBuffer A CVImageBuffer that you wish to retrieve the display size from.
|
||
|
|
@result A CGSize returning the nominal display size of the buffer
|
||
|
|
Returns zero rect if called with a non-CVImageBufferRef type or NULL.
|
||
|
|
*/
|
||
|
|
CV_EXPORT CGRect CVImageBufferGetCleanRect(CVImageBufferRef imageBuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
|
||
|
|
|
||
|
|
#if TARGET_OS_MAC
|
||
|
|
/*!
|
||
|
|
@function CVImageBufferGetColorSpace
|
||
|
|
@abstract Returns the color space of a CVImageBuffer.
|
||
|
|
@param imageBuffer A CVImageBuffer that you wish to retrieve the color space from.
|
||
|
|
@result A CGColorSpaceRef representing the color space of the buffer.
|
||
|
|
Returns NULL if called with a non-CVImageBufferRef type or NULL.
|
||
|
|
*/
|
||
|
|
CV_EXPORT CGColorSpaceRef CVImageBufferGetColorSpace(CVImageBufferRef imageBuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|