VideoDSPContext Struct Reference

#include <videodsp.h>

Data Fields
void(*	emulated_edge_mc )(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
	Copy a rectangular area of samples to a temporary buffer and replicate the border samples. More...
void(*	prefetch )(uint8_t *buf, ptrdiff_t stride, int h)
	Prefetch memory into cache (if supported by hardware). More...

Detailed Description

Definition at line 40 of file videodsp.h.

Field Documentation

emulated_edge_mc

void(* VideoDSPContext::emulated_edge_mc) (uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)

Copy a rectangular area of samples to a temporary buffer and replicate the border samples.

Parameters

dst	destination buffer
dst_stride	number of bytes between 2 vertically adjacent samples in destination buffer
src	source buffer
dst_linesize	number of bytes between 2 vertically adjacent samples in the destination buffer
src_linesize	number of bytes between 2 vertically adjacent samples in both the source buffer
block_w	width of block
block_h	height of block
src_x	x coordinate of the top left sample of the block in the source buffer
src_y	y coordinate of the top left sample of the block in the source buffer
w	width of the source buffer
h	height of the source buffer

Definition at line 62 of file videodsp.h.

Referenced by checkasm_check_videodsp(), and dnxhd_get_blocks().

prefetch

void(* VideoDSPContext::prefetch) (uint8_t *buf, ptrdiff_t stride, int h)

Prefetch memory into cache (if supported by hardware).

Parameters

buf	pointer to buffer to prefetch memory from
stride	distance between two lines of buf (in bytes)
h	number of lines to prefetch

Definition at line 75 of file videodsp.h.

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The documentation for this struct was generated from the following file:

• libavcodec/videodsp.h