imgutils.h File Reference

misc image utilities More...

#include <stddef.h>
#include <stdint.h>
#include "pixdesc.h"
#include "pixfmt.h"
#include "rational.h"

Go to the source code of this file.

Functions
void	av_image_fill_max_pixsteps (int max_pixsteps[4], int max_pixstep_comps[4], const AVPixFmtDescriptor *pixdesc)
	Compute the max pixel step for each plane of an image with a format described by pixdesc. More...
int	av_image_get_linesize (enum AVPixelFormat pix_fmt, int width, int plane)
	Compute the size of an image line with format pix_fmt and width width for the plane plane. More...
int	av_image_fill_linesizes (int linesizes[4], enum AVPixelFormat pix_fmt, int width)
	Fill plane linesizes for an image with pixel format pix_fmt and width width. More...
int	av_image_fill_plane_sizes (size_t size[4], enum AVPixelFormat pix_fmt, int height, const ptrdiff_t linesizes[4])
	Fill plane sizes for an image with pixel format pix_fmt and height height. More...
int	av_image_fill_pointers (uint8_t *data[4], enum AVPixelFormat pix_fmt, int height, uint8_t *ptr, const int linesizes[4])
	Fill plane data pointers for an image with pixel format pix_fmt and height height. More...
int	av_image_alloc (uint8_t *pointers[4], int linesizes[4], int w, int h, enum AVPixelFormat pix_fmt, int align)
	Allocate an image with size w and h and pixel format pix_fmt, and fill pointers and linesizes accordingly. More...
void	av_image_copy_plane (uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
	Copy image plane from src to dst. More...
void	av_image_copy_plane_uc_from (uint8_t *dst, ptrdiff_t dst_linesize, const uint8_t *src, ptrdiff_t src_linesize, ptrdiff_t bytewidth, int height)
	Copy image data located in uncacheable (e.g. More...
void	av_image_copy (uint8_t *dst_data[4], int dst_linesizes[4], const uint8_t *src_data[4], const int src_linesizes[4], enum AVPixelFormat pix_fmt, int width, int height)
	Copy image in src_data to dst_data. More...
void	av_image_copy_uc_from (uint8_t *dst_data[4], const ptrdiff_t dst_linesizes[4], const uint8_t *src_data[4], const ptrdiff_t src_linesizes[4], enum AVPixelFormat pix_fmt, int width, int height)
	Copy image data located in uncacheable (e.g. More...
int	av_image_fill_arrays (uint8_t *dst_data[4], int dst_linesize[4], const uint8_t *src, enum AVPixelFormat pix_fmt, int width, int height, int align)
	Setup the data pointers and linesizes based on the specified image parameters and the provided array. More...
int	av_image_get_buffer_size (enum AVPixelFormat pix_fmt, int width, int height, int align)
	Return the size in bytes of the amount of data required to store an image with the given parameters. More...
int	av_image_copy_to_buffer (uint8_t *dst, int dst_size, const uint8_t *const src_data[4], const int src_linesize[4], enum AVPixelFormat pix_fmt, int width, int height, int align)
	Copy image data from an image into a buffer. More...
int	av_image_check_size (unsigned int w, unsigned int h, int log_offset, void *log_ctx)
	Check if the given dimension of an image is valid, meaning that all bytes of the image can be addressed with a signed int. More...
int	av_image_check_size2 (unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
	Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with the specified pix_fmt can be addressed with a signed int. More...
int	av_image_check_sar (unsigned int w, unsigned int h, AVRational sar)
	Check if the given sample aspect ratio of an image is valid. More...
int	av_image_fill_black (uint8_t *dst_data[4], const ptrdiff_t dst_linesize[4], enum AVPixelFormat pix_fmt, enum AVColorRange range, int width, int height)
	Overwrite the image data with black. More...

Detailed Description

misc image utilities

Definition in file imgutils.h.