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.
void(*	prefetch )(uint8_t *buf, ptrdiff_t stride, int h)
	Prefetch memory into cache (if supported by hardware).

Detailed Description

Definition at line 41 of file videodsp.h.

Field Documentation

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 63 of file videodsp.h.

Referenced by apply_8x8(), chroma_4mv_motion(), chroma_4mv_motion_lowres(), chroma_mc(), encode_mb_internal(), ff_mspel_motion(), ff_snow_pred_block(), ff_videodsp_init(), ff_videodsp_init_x86(), gmc1_motion(), hpel_motion(), hpel_motion_lowres(), luma_mc(), mc_chroma_dir(), mc_dir_part(), mc_luma_dir(), mpeg_motion_internal(), mpeg_motion_lowres(), qpel_motion(), render_slice(), rv34_mc(), svq3_mc_dir_part(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_chroma4(), vc1_mc_4mv_luma(), vp8_mc_chroma(), and vp8_mc_luma().

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 76 of file videodsp.h.

Referenced by ff_videodsp_init(), ff_videodsp_init_armv5te(), ff_videodsp_init_ppc(), ff_videodsp_init_x86(), prefetch_motion(), and vp8_decode_mb_row_no_filter().

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

• libavcodec/videodsp.h