imgutils.h File Reference

misc image utilities More...

#include "avutil.h"
#include "pixdesc.h"
#include "rational.h"

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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.

Detailed Description

misc image utilities

Definition in file imgutils.h.