libavcodec/proresdsp.c File Reference

#include "proresdsp.h"
#include "simple_idct.h"

Go to the source code of this file.

Defines
#define	BIAS   (1 << (PRORES_BITS_PER_SAMPLE - 1))
	bias value for converting signed pixels into unsigned ones
#define	CLIP_MIN   (1 << (PRORES_BITS_PER_SAMPLE - 8))
	minimum value for clipping resulting pixels
#define	CLIP_MAX   (1 << PRORES_BITS_PER_SAMPLE) - CLIP_MIN - 1
	maximum value for clipping resulting pixels
#define	CLIP_AND_BIAS(x)   (av_clip((x) + BIAS, CLIP_MIN, CLIP_MAX))
Functions
static void	put_pixels (uint16_t *dst, int stride, const DCTELEM *in)
	Add bias value, clamp and output pixels of a slice.
static void	prores_idct_put_c (uint16_t *out, int linesize, DCTELEM *block, const int16_t *qmat)
void	ff_proresdsp_init (ProresDSPContext *dsp, AVCodecContext *avctx)

---

Define Documentation

#define BIAS   (1 << (PRORES_BITS_PER_SAMPLE - 1))

bias value for converting signed pixels into unsigned ones

Definition at line 26 of file proresdsp.c.

#define CLIP_AND_BIAS

(

x

)

(av_clip((x) + BIAS, CLIP_MIN, CLIP_MAX))

Definition at line 30 of file proresdsp.c.

Referenced by put_pixels().

#define CLIP_MAX   (1 << PRORES_BITS_PER_SAMPLE) - CLIP_MIN - 1

maximum value for clipping resulting pixels

Definition at line 28 of file proresdsp.c.

#define CLIP_MIN   (1 << (PRORES_BITS_PER_SAMPLE - 8))

minimum value for clipping resulting pixels

Definition at line 27 of file proresdsp.c.

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Function Documentation

void ff_proresdsp_init	(	ProresDSPContext *	dsp,
		AVCodecContext *	avctx
	)

Definition at line 54 of file proresdsp.c.

Referenced by decode_init().

static void prores_idct_put_c	(	uint16_t *	out,
		int	linesize,
		DCTELEM *	block,
		const int16_t *	qmat
	)			[static]

Definition at line 48 of file proresdsp.c.

Referenced by ff_proresdsp_init().

static void put_pixels	(	uint16_t *	dst,
		int	stride,
		const DCTELEM *	in
	)			[static]

Add bias value, clamp and output pixels of a slice.

Definition at line 35 of file proresdsp.c.

Referenced by prores_idct_put_c().