FFmpeg: libavcodec/rv34dsp.c File Reference

FFmpeg

libavcodec

#include "rv34dsp.h"
#include "libavutil/common.h"

Go to the source code of this file.

Functions
av_cold void	ff_rv34dsp_init (RV34DSPContext *c)

RV30/40 inverse transform functions
static av_always_inline void	rv34_row_transform (int temp[16], int16_t *block)

static void	rv34_idct_add_c (uint8_t dst, ptrdiff_t stride, int16_t block)
	Real Video 3.0/4.0 inverse transform + sample reconstruction Code is almost the same as in SVQ3, only scaling is different. More...

static void	rv34_inv_transform_noround_c (int16_t *block)
	RealVideo 3.0/4.0 inverse transform for DC block. More...

static void	rv34_idct_dc_add_c (uint8_t *dst, ptrdiff_t stride, int dc)

static void	rv34_inv_transform_dc_noround_c (int16_t *block)

Detailed Description

RV30/40 decoder common dsp functions

Definition in file rv34dsp.c.

Function Documentation

◆ rv34_row_transform()

static av_always_inline void rv34_row_transform	(	int	temp[16],
		int16_t *	block
	)

static

Definition at line 36 of file rv34dsp.c.

Referenced by rv34_idct_add_c(), and rv34_inv_transform_noround_c().

◆ rv34_idct_add_c()

static void rv34_idct_add_c	(	uint8_t *	dst,
		ptrdiff_t	stride,
		int16_t *	block
	)

static

Real Video 3.0/4.0 inverse transform + sample reconstruction Code is almost the same as in SVQ3, only scaling is different.

Definition at line 57 of file rv34dsp.c.

Referenced by ff_rv34dsp_init().

◆ rv34_inv_transform_noround_c()

static void rv34_inv_transform_noround_c ( int16_t * block )

static

RealVideo 3.0/4.0 inverse transform for DC block.

Code is almost the same as rv34_inv_transform() but final coefficients are multiplied by 1.5 and have no rounding.

Definition at line 85 of file rv34dsp.c.

Referenced by ff_rv34dsp_init().

◆ rv34_idct_dc_add_c()

static void rv34_idct_dc_add_c	(	uint8_t *	dst,
		ptrdiff_t	stride,
		int	dc
	)

static

Definition at line 104 of file rv34dsp.c.

Referenced by ff_rv34dsp_init().

◆ rv34_inv_transform_dc_noround_c()

static void rv34_inv_transform_dc_noround_c ( int16_t * block )

static

Definition at line 118 of file rv34dsp.c.

Referenced by ff_rv34dsp_init().

◆ ff_rv34dsp_init()

av_cold void ff_rv34dsp_init ( RV34DSPContext * c )

Definition at line 131 of file rv34dsp.c.

Referenced by ff_rv30dsp_init(), and ff_rv40dsp_init().