FFmpeg: libavcodec/wmv2dsp.c File Reference

FFmpeg 4.0

libavcodec

#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "avcodec.h"
#include "idctdsp.h"
#include "mathops.h"
#include "wmv2dsp.h"

Go to the source code of this file.

Macros
#define	W0 2048

#define	W1 2841 /* 2048sqrt (2)cos (1pi/16) /

#define	W2 2676 /* 2048sqrt (2)cos (2pi/16) /

#define	W3 2408 /* 2048sqrt (2)cos (3pi/16) /

#define	W4 2048 /* 2048sqrt (2)cos (4pi/16) /

#define	W5 1609 /* 2048sqrt (2)cos (5pi/16) /

#define	W6 1108 /* 2048sqrt (2)cos (6pi/16) /

#define	W7 565 /* 2048sqrt (2)cos (7pi/16) /

Functions
static void	wmv2_idct_row (short *b)

static void	wmv2_idct_col (short *b)

static void	wmv2_idct_add_c (uint8_t dest, ptrdiff_t line_size, int16_t block)

static void	wmv2_idct_put_c (uint8_t dest, ptrdiff_t line_size, int16_t block)

static void	wmv2_mspel8_h_lowpass (uint8_t dst, const uint8_t src, int dstStride, int srcStride, int h)

static void	wmv2_mspel8_v_lowpass (uint8_t dst, const uint8_t src, int dstStride, int srcStride, int w)

static void	put_mspel8_mc10_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc20_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc30_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc02_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc12_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc32_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

static void	put_mspel8_mc22_c (uint8_t dst, const uint8_t src, ptrdiff_t stride)

av_cold void	ff_wmv2dsp_init (WMV2DSPContext *c)

Macro Definition Documentation

◆ W0

#define W0 2048

Definition at line 26 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W1

#define W1 2841 /* 2048*sqrt (2)*cos (1*pi/16) */

Definition at line 27 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W2

#define W2 2676 /* 2048*sqrt (2)*cos (2*pi/16) */

Definition at line 28 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W3

#define W3 2408 /* 2048*sqrt (2)*cos (3*pi/16) */

Definition at line 29 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W4

#define W4 2048 /* 2048*sqrt (2)*cos (4*pi/16) */

Definition at line 30 of file wmv2dsp.c.

◆ W5

#define W5 1609 /* 2048*sqrt (2)*cos (5*pi/16) */

Definition at line 31 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W6

#define W6 1108 /* 2048*sqrt (2)*cos (6*pi/16) */

Definition at line 32 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

◆ W7

#define W7 565 /* 2048*sqrt (2)*cos (7*pi/16) */

Definition at line 33 of file wmv2dsp.c.

Referenced by wmv2_idct_col(), and wmv2_idct_row().

Function Documentation

◆ wmv2_idct_row()

static void wmv2_idct_row ( short * b )

static

Definition at line 35 of file wmv2dsp.c.

Referenced by wmv2_idct_add_c(), and wmv2_idct_put_c().

◆ wmv2_idct_col()

static void wmv2_idct_col ( short * b )

static

Definition at line 65 of file wmv2dsp.c.

Referenced by wmv2_idct_add_c(), and wmv2_idct_put_c().

◆ wmv2_idct_add_c()

static void wmv2_idct_add_c	(	uint8_t *	dest,
		ptrdiff_t	line_size,
		int16_t *	block
	)

static

Definition at line 96 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ wmv2_idct_put_c()

static void wmv2_idct_put_c	(	uint8_t *	dest,
		ptrdiff_t	line_size,
		int16_t *	block
	)

static

Definition at line 119 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ wmv2_mspel8_h_lowpass()

static void wmv2_mspel8_h_lowpass	(	uint8_t *	dst,
		const uint8_t *	src,
		int	dstStride,
		int	srcStride,
		int	h
	)

static

Definition at line 142 of file wmv2dsp.c.

Referenced by put_mspel8_mc10_c(), put_mspel8_mc12_c(), put_mspel8_mc20_c(), put_mspel8_mc22_c(), put_mspel8_mc30_c(), and put_mspel8_mc32_c().

◆ wmv2_mspel8_v_lowpass()

static void wmv2_mspel8_v_lowpass	(	uint8_t *	dst,
		const uint8_t *	src,
		int	dstStride,
		int	srcStride,
		int	w
	)

static

Definition at line 162 of file wmv2dsp.c.

Referenced by put_mspel8_mc02_c(), put_mspel8_mc12_c(), put_mspel8_mc22_c(), and put_mspel8_mc32_c().

◆ put_mspel8_mc10_c()

static void put_mspel8_mc10_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 193 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc20_c()

static void put_mspel8_mc20_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 201 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc30_c()

static void put_mspel8_mc30_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 206 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc02_c()

static void put_mspel8_mc02_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 214 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc12_c()

static void put_mspel8_mc12_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 219 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc32_c()

static void put_mspel8_mc32_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 231 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ put_mspel8_mc22_c()

static void put_mspel8_mc22_c	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	stride
	)

static

Definition at line 243 of file wmv2dsp.c.

Referenced by ff_wmv2dsp_init().

◆ ff_wmv2dsp_init()

av_cold void ff_wmv2dsp_init ( WMV2DSPContext * c )

Definition at line 251 of file wmv2dsp.c.

Referenced by ff_intrax8_common_init(), and ff_wmv2_common_init().