#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "snow_dwt.h"
#include "snow.h"
#include "snowdata.h"

Macros
#define	MC_STRIDE(x) (needs[x] ? 64 : stride)

#define	mca(dx, dy, b_w)

#define	mcfh(dx, dy)

Functions
void	ff_snow_inner_add_yblock (const uint8_t obmc, const int obmc_stride, uint8_t block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer sb, int add, uint8_t *dst8)

void	ff_snow_reset_contexts (SnowContext *s)

int	ff_snow_alloc_blocks (SnowContext *s)

static void	mc_block (Plane p, uint8_t dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy)

void	ff_snow_pred_block (SnowContext s, uint8_t dst, uint8_t tmp, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, const BlockNode block, int plane_index, int w, int h)

	mca (mca(0, mca(0, 16)

av_cold int	ff_snow_common_init (AVCodecContext *avctx)

int	ff_snow_common_init_after_header (AVCodecContext *avctx)

void	ff_snow_release_buffer (AVCodecContext *avctx)

int	ff_snow_frames_prepare (SnowContext *s)

av_cold void	ff_snow_common_end (SnowContext *s)

Macro Definition Documentation

◆ MC_STRIDE

#define MC_STRIDE ( x ) (needs[x] ? 64 : stride)

◆ mca

#define mca	(	dx,
		dy,
		b_w
	)

Value:

static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h){\
    av_assert2(h==b_w);\
    mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
}

Definition at line 373 of file snow.c.

◆ mcfh

#define mcfh	(	dx,
		dy
	)

Value:

    s->hdsp.put_pixels_tab       [0][dy/4+dx/8]=\
    s->hdsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 16;\
    s->hdsp.put_pixels_tab       [1][dy/4+dx/8]=\
    s->hdsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 8;

Function Documentation

◆ ff_snow_inner_add_yblock()

void ff_snow_inner_add_yblock	(	const uint8_t *	obmc,
		const int	obmc_stride,
		uint8_t **	block,
		int	b_w,
		int	b_h,
		int	src_x,
		int	src_y,
		int	src_stride,
		slice_buffer *	sb,
		int	add,
		uint8_t *	dst8
	)

Definition at line 30 of file snow.c.

Referenced by ff_dwt_init().

◆ ff_snow_reset_contexts()

void ff_snow_reset_contexts ( SnowContext * s )

Definition at line 63 of file snow.c.

Referenced by decode_header(), and encode_header().

◆ ff_snow_alloc_blocks()

int ff_snow_alloc_blocks ( SnowContext * s )

Definition at line 77 of file snow.c.

Referenced by decode_frame(), and encode_init().

◆ mc_block()

static void mc_block	(	Plane *	p,
		uint8_t *	dst,
		const uint8_t *	src,
		int	stride,
		int	b_w,
		int	b_h,
		int	dx,
		int	dy
	)

static

Definition at line 92 of file snow.c.

Referenced by ff_snow_pred_block().

◆ ff_snow_pred_block()

void ff_snow_pred_block	(	SnowContext *	s,
		uint8_t *	dst,
		uint8_t *	tmp,
		ptrdiff_t	stride,
		int	sx,
		int	sy,
		int	b_w,
		int	b_h,
		const BlockNode *	block,
		int	plane_index,
		int	w,
		int	h
	)

Definition at line 285 of file snow.c.

Referenced by add_yblock(), and get_block_rd().

◆ mca()

mca	(	mca(	0,
		mca(	0,
		16
	)

Definition at line 379 of file snow.c.

◆ ff_snow_common_init()

av_cold int ff_snow_common_init ( AVCodecContext * avctx )

Definition at line 395 of file snow.c.

Referenced by encode_init().

◆ ff_snow_common_init_after_header()

int ff_snow_common_init_after_header ( AVCodecContext * avctx )

Definition at line 450 of file snow.c.

Referenced by decode_frame(), and encode_frame().

◆ ff_snow_release_buffer()

void ff_snow_release_buffer ( AVCodecContext * avctx )

Definition at line 514 of file snow.c.

Referenced by decode_frame(), encode_frame(), and ff_snow_frames_prepare().

◆ ff_snow_frames_prepare()

int ff_snow_frames_prepare ( SnowContext * s )

Definition at line 523 of file snow.c.