nvbuf_utils.h File Reference

Detailed Description

NVIDIA Multimedia Utilities: Buffering and Transform/Composition/Blending

Definition in file nvbuf_utils.h.

Go to the source code of this file.

Data Structures
struct	NvBufferCompositeBackground
	Defines composition background r,g,b colors. More...
struct	NvBufferRect
	Defines coordinates for rectangle. More...
struct	_NvBufferCreateParams
	Defines input parameters for hardware buffer creation. More...
struct	_NvBufferParams
	Defines parameters related to hardware buffer. More...
struct	_NvBufferCompositeParams
	Defines parameters related to composition/blending. More...
struct	_NvBufferTransformParams
	Defines parameters related to transform. More...

Macros
#define	MAX_NUM_PLANES   3
	Defines maximum number of planes for video frame. More...
#define	MAX_COMPOSITE_FRAME   16
	Defines maximum number of input video frames can be used for composition. More...

Typedefs
typedef struct _NvBufferCreateParams	NvBufferCreateParams
	Defines input parameters for hardware buffer creation. More...
typedef struct _NvBufferParams	NvBufferParams
	Defines parameters related to hardware buffer. More...
typedef struct _NvBufferCompositeParams	NvBufferCompositeParams
	Defines parameters related to composition/blending. More...
typedef struct _NvBufferTransformParams	NvBufferTransformParams
	Defines parameters related to transform. More...

Enumerations
enum	NvBufferPayloadType {   NvBufferPayload_SurfArray,   NvBufferPayload_MemHandle }
	Defines Payload type for NvBuffer. More...
enum	NvBufferLayout {   NvBufferLayout_Pitch,   NvBufferLayout_BlockLinear }
	Defines Layout formats for NvBuffer video planes. More...
enum	NvBufferMemFlags {   NvBufferMem_Read,   NvBufferMem_Write,   NvBufferMem_Read_Write }
	Defines memory access flags for NvBuffer. More...
enum	NvBufferTag {   NvBufferTag_NONE = 0x0,   NvBufferTag_CAMERA = 0x200,   NvBufferTag_JPEG = 0x1500,   NvBufferTag_VIDEO_ENC = 0x1200,   NvBufferTag_VIDEO_DEC = 0x1400,   NvBufferTag_VIDEO_CONVERT = 0xf01 }
	Defines tags to associate, while allocation of NvBuffer. More...
enum	NvBufferColorFormat {   NvBufferColorFormat_YUV420,   NvBufferColorFormat_YVU420,   NvBufferColorFormat_NV12,   NvBufferColorFormat_NV21,   NvBufferColorFormat_UYVY,   NvBufferColorFormat_VYUY,   NvBufferColorFormat_YUYV,   NvBufferColorFormat_YVYU,   NvBufferColorFormat_ABGR32,   NvBufferColorFormat_XRGB32,   NvBufferColorFormat_ARGB32,   NvBufferColorFormat_Invalid }
	Defines color formats for NvBuffer. More...
enum	NvBufferTransform_Flip {   NvBufferTransform_None,   NvBufferTransform_Rotate90,   NvBufferTransform_Rotate180,   NvBufferTransform_Rotate270,   NvBufferTransform_FlipX,   NvBufferTransform_FlipY,   NvBufferTransform_Transpose,   NvBufferTransform_InvTranspose }
	Defines video flip methods. More...
enum	NvBufferTransform_Filter {   NvBufferTransform_Filter_Nearest,   NvBufferTransform_Filter_Bilinear,   NvBufferTransform_Filter_5_Tap,   NvBufferTransform_Filter_10_Tap,   NvBufferTransform_Filter_Smart,   NvBufferTransform_Filter_Nicest }
	Defines transform video filter types. More...
enum	NvBufferTransform_Flag {   NVBUFFER_TRANSFORM_CROP_SRC = 1,   NVBUFFER_TRANSFORM_CROP_DST = 1 << 1,   NVBUFFER_TRANSFORM_FILTER = 1 << 2,   NVBUFFER_TRANSFORM_FLIP = 1 << 3 }
	Defines flags to indicate for valid transform. More...
enum	NvBufferComposite_Flag {   NVBUFFER_COMPOSITE = 1,   NVBUFFER_BLEND = 1 << 1 }
	Defines flags to indicate for valid composition/blending operation. More...

Functions
EGLImageKHR	NvEGLImageFromFd (EGLDisplay display, int dmabuf_fd)
	This method must be used for getting EGLImage from dmabuf-fd. More...
int	NvDestroyEGLImage (EGLDisplay display, EGLImageKHR eglImage)
	This method must be used for destroying EGLImage object. More...
int	NvBufferCreate (int *dmabuf_fd, int width, int height, NvBufferLayout layout, NvBufferColorFormat colorFormat)
	Use this method to allocate HW buffer (Deprecated, instead use NvBufferCreateEx API). More...
int	NvBufferCreateEx (int *dmabuf_fd, NvBufferCreateParams *input_params)
	Use this method to allocate HW buffer. More...
int	NvBufferGetParams (int dmabuf_fd, NvBufferParams *params)
	Use this method to get buffer parameters. More...
int	NvBufferDestroy (int dmabuf_fd)
	This method must be used for destroying hw_buffer. More...
int	ExtractFdFromNvBuffer (void *nvbuf, int *dmabuf_fd)
	This method must be used to extract dmabuf_fd of the hardware buffer. More...
int	NvReleaseFd (int dmabuf_fd)
	This method must be used for releasing dmabuf_fd. More...
int	NvBufferMemSyncForCpu (int dmabuf_fd, unsigned int plane, void **pVirtAddr)
	This method must be used for hw memory cache sync for the CPU. More...
int	NvBufferMemSyncForDevice (int dmabuf_fd, unsigned int plane, void **pVirtAddr)
	This method must be used for hw memory cache sync for device. More...
int	NvBufferMemMap (int dmabuf_fd, unsigned int plane, NvBufferMemFlags memflag, void **pVirtAddr)
	This method must be used for getting mem mapped virtual Address of the plane. More...
int	NvBufferMemUnMap (int dmabuf_fd, unsigned int plane, void **pVirtAddr)
	This method must be used to Unmap the mapped virtual Address of the plane. More...
int	NvBuffer2Raw (int dmabuf_fd, unsigned int plane, unsigned int out_width, unsigned int out_height, unsigned char *ptr)
	This method is used to copy NvBuffer plane contents to raw buffer plane. More...
int	Raw2NvBuffer (unsigned char *ptr, unsigned int plane, unsigned int in_width, unsigned int in_height, int dmabuf_fd)
	This method is used to copy raw buffer plane contents to NvBuffer plane. More...
int	NvBufferTransform (int src_dmabuf_fd, int dst_dmabuf_fd, NvBufferTransformParams *transform_params)
	This method is used to transform one DMA buffer to another DMA buffer. More...
int	NvBufferComposite (int *src_dmabuf_fds, int dst_dmabuf_fd, NvBufferCompositeParams *composite_params)
	This method is used to composite multiple input DMA buffers to one output DMA buffer. More...