snow.c File Reference

#include <assert.h>
#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"
#include "h264qpel_template.c"

Go to the source code of this file.

Macros
#define	pixeltmp   int16_t
#define	BIT_DEPTH   8
#define	SNOW
#define	MC_STRIDE(x)   (needs[x] ? 64 : stride)
#define	mca(dx, dy, b_w)
#define	mcfh(dx, dy)

Functions
static void	put_snow_qpel2_h_lowpass_8 (uint8_t *dst, const uint8_t *restrict src, int dstStride, int srcStride)
static void	put_snow_qpel2_v_lowpass_8 (uint8_t *dst, const uint8_t *restrict src, int dstStride, int srcStride)
static void	put_snow_qpel2_hv_lowpass_8 (uint8_t *dst, pixeltmp *tmp, const uint8_t *restrict src, int dstStride, int tmpStride, int srcStride)
static av_cold void	init_qpel (SnowContext *const s)
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)
int	ff_snow_frames_prepare (SnowContext *s)
av_cold void	ff_snow_common_end (SnowContext *s)

Macro Definition Documentation

pixeltmp

#define pixeltmp   int16_t

Definition at line 31 of file snow.c.

BIT_DEPTH

#define BIT_DEPTH   8

Definition at line 32 of file snow.c.

SNOW

#define SNOW

Definition at line 33 of file snow.c.

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 460 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

put_snow_qpel2_h_lowpass_8()

static void put_snow_qpel2_h_lowpass_8 ( uint8_t *  dst, const uint8_t *restrict  src, int  dstStride, int  srcStride  )

static

Definition at line 36 of file snow.c.

put_snow_qpel2_v_lowpass_8()

static void put_snow_qpel2_v_lowpass_8 ( uint8_t *  dst, const uint8_t *restrict  src, int  dstStride, int  srcStride  )

static

Definition at line 47 of file snow.c.

put_snow_qpel2_hv_lowpass_8()

static void put_snow_qpel2_hv_lowpass_8 ( uint8_t *  dst, pixeltmp *  tmp, const uint8_t *restrict  src, int  dstStride, int  tmpStride, int  srcStride  )

static

Definition at line 65 of file snow.c.

init_qpel()

static av_cold void init_qpel ( SnowContext *const  s )

static

Definition at line 94 of file snow.c.

Referenced by ff_snow_common_init().

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 117 of file snow.c.

Referenced by ff_dwt_init().

ff_snow_reset_contexts()

void ff_snow_reset_contexts

(

SnowContext *

s

)

Definition at line 150 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 164 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 179 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 372 of file snow.c.

Referenced by add_yblock(), and get_block_rd().

mca()

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

Definition at line 466 of file snow.c.

ff_snow_common_init()

av_cold int ff_snow_common_init

(

AVCodecContext *

avctx

)

Definition at line 482 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 538 of file snow.c.

Referenced by decode_frame(), and encode_frame().

ff_snow_frames_prepare()

int ff_snow_frames_prepare

(

SnowContext *

s

)

Definition at line 602 of file snow.c.

Referenced by decode_frame(), and encode_frame().

ff_snow_common_end()

av_cold void ff_snow_common_end

(

SnowContext *

s

)

Definition at line 633 of file snow.c.

Referenced by decode_end(), and encode_end().