libavcodec/h264idct.c File Reference

H.264 IDCT. More...

#include "dsputil.h"

Go to the source code of this file.

Functions
static av_always_inline void	idct_internal (uint8_t *dst, DCTELEM *block, int stride, int block_stride, int shift, int add)
void	ff_h264_idct_add_c (uint8_t *dst, DCTELEM *block, int stride)
void	ff_h264_lowres_idct_add_c (uint8_t *dst, int stride, DCTELEM *block)
void	ff_h264_lowres_idct_put_c (uint8_t *dst, int stride, DCTELEM *block)
void	ff_h264_idct8_add_c (uint8_t *dst, DCTELEM *block, int stride)
void	ff_h264_idct_dc_add_c (uint8_t *dst, DCTELEM *block, int stride)
void	ff_h264_idct8_dc_add_c (uint8_t *dst, DCTELEM *block, int stride)
void	ff_h264_idct_add16_c (uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6 *8])
void	ff_h264_idct_add16intra_c (uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6 *8])
void	ff_h264_idct8_add4_c (uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6 *8])
void	ff_h264_idct_add8_c (uint8_t **dest, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6 *8])
Variables
static const uint8_t	scan8 [16+2 *4]

---

Detailed Description

H.264 IDCT.

Author:

Michael Niedermayer <michaelni@gmx.at>

Definition in file h264idct.c.

---

Function Documentation

void ff_h264_idct8_add4_c	(	uint8_t *	dst,
		const int *	block_offset,
		DCTELEM *	block,
		int	stride,
		const uint8_t	nnzc[6 *8]
	)

Definition at line 199 of file h264idct.c.

Referenced by ff_h264dsp_init().

void ff_h264_idct8_add_c	(	uint8_t *	dst,
		DCTELEM *	block,
		int	stride
	)

Definition at line 73 of file h264idct.c.

Referenced by ff_h264_idct8_add4_c(), ff_h264dsp_init(), init_dequant8_coeff_table(), and init_scan_tables().

void ff_h264_idct8_dc_add_c	(	uint8_t *	dst,
		DCTELEM *	block,
		int	stride
	)

Definition at line 156 of file h264idct.c.

Referenced by ff_h264_idct8_add4_c(), and ff_h264dsp_init().

void ff_h264_idct_add16_c	(	uint8_t *	dst,
		const int *	block_offset,
		DCTELEM *	block,
		int	stride,
		const uint8_t	nnzc[6 *8]
	)

Definition at line 180 of file h264idct.c.

Referenced by ff_h264dsp_init().

void ff_h264_idct_add16intra_c	(	uint8_t *	dst,
		const int *	block_offset,
		DCTELEM *	block,
		int	stride,
		const uint8_t	nnzc[6 *8]
	)

Definition at line 191 of file h264idct.c.

Referenced by ff_h264dsp_init().

void ff_h264_idct_add8_c	(	uint8_t **	dest,
		const int *	block_offset,
		DCTELEM *	block,
		int	stride,
		const uint8_t	nnzc[6 *8]
	)

Definition at line 210 of file h264idct.c.

Referenced by ff_h264dsp_init().

void ff_h264_idct_add_c	(	uint8_t *	dst,
		DCTELEM *	block,
		int	stride
	)

Definition at line 61 of file h264idct.c.

Referenced by ff_h264_idct_add8_c(), ff_h264dsp_init(), init_dequant4_coeff_table(), and init_scan_tables().

void ff_h264_idct_dc_add_c	(	uint8_t *	dst,
		DCTELEM *	block,
		int	stride
	)

Definition at line 144 of file h264idct.c.

Referenced by ff_h264_idct_add16_c(), ff_h264_idct_add16intra_c(), ff_h264_idct_add8_c(), and ff_h264dsp_init().

void ff_h264_lowres_idct_add_c	(	uint8_t *	dst,
		int	stride,
		DCTELEM *	block
	)

Definition at line 65 of file h264idct.c.

Referenced by dsputil_init().

void ff_h264_lowres_idct_put_c	(	uint8_t *	dst,
		int	stride,
		DCTELEM *	block
	)

Definition at line 69 of file h264idct.c.

Referenced by dsputil_init().

static av_always_inline void idct_internal	(	uint8_t *	dst,
		DCTELEM *	block,
		int	stride,
		int	block_stride,
		int	shift,
		int	add
	)			[static]

Definition at line 30 of file h264idct.c.

Referenced by ff_h264_idct_add16_c(), ff_h264_idct_add16intra_c(), ff_h264_idct_add_c(), ff_h264_lowres_idct_add_c(), and ff_h264_lowres_idct_put_c().

---

Variable Documentation

const uint8_t scan8[16+2 *4] [static]

Initial value:

{
 4+1*8, 5+1*8, 4+2*8, 5+2*8,
 6+1*8, 7+1*8, 6+2*8, 7+2*8,
 4+3*8, 5+3*8, 4+4*8, 5+4*8,
 6+3*8, 7+3*8, 6+4*8, 7+4*8,
 1+1*8, 2+1*8,
 1+2*8, 2+2*8,
 1+4*8, 2+4*8,
 1+5*8, 2+5*8,
}

Definition at line 169 of file h264idct.c.