libavcodec/lcldec.c File Reference

LCL (LossLess Codec Library) Video Codec Decoder for MSZH and ZLIB codecs Experimental encoder for ZLIB RGB24. More...

#include <stdio.h>
#include <stdlib.h>
#include "avcodec.h"
#include "bitstream.h"
#include "lcl.h"

Go to the source code of this file.

Data Structures
struct	LclDecContext
Typedefs
typedef struct LclDecContext	LclDecContext
Functions
static unsigned char	fix (int pix14)
static unsigned char	get_b (unsigned char yq, signed char bq)
static unsigned char	get_g (unsigned char yq, signed char bq, signed char rq)
static unsigned char	get_r (unsigned char yq, signed char rq)
static unsigned int	mszh_decomp (unsigned char *srcptr, int srclen, unsigned char *destptr, unsigned int destsize)
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

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Detailed Description

LCL (LossLess Codec Library) Video Codec Decoder for MSZH and ZLIB codecs Experimental encoder for ZLIB RGB24.

Fourcc: MSZH, ZLIB

Original Win32 dll: Ver2.23 By Kenji Oshima 2000.09.20 avimszh.dll, avizlib.dll

A description of the decoding algorithm can be found here: http://www.pcisys.net/~melanson/codecs

Supports: BGR24 (RGB 24bpp)

Definition in file lcldec.c.

---

Typedef Documentation

typedef struct LclDecContext LclDecContext

---

Function Documentation

static av_cold int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 676 of file lcldec.c.

static int decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 164 of file lcldec.c.

static av_cold int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 517 of file lcldec.c.

static unsigned char fix

(

int

pix14

)

[inline, static]

Definition at line 79 of file lcldec.c.

Referenced by get_b(), get_g(), and get_r().

static unsigned char get_b	(	unsigned char	yq,
		signed char	bq
	)			[inline, static]

Definition at line 93 of file lcldec.c.

Referenced by decode_frame().

static unsigned char get_g	(	unsigned char	yq,
		signed char	bq,
		signed char	rq
	)			[inline, static]

Definition at line 100 of file lcldec.c.

Referenced by decode_frame().

static unsigned char get_r	(	unsigned char	yq,
		signed char	rq
	)			[inline, static]

Definition at line 107 of file lcldec.c.

Referenced by decode_frame().

static unsigned int mszh_decomp	(	unsigned char *	srcptr,
		int	srclen,
		unsigned char *	destptr,
		unsigned int	destsize
	)			[static]

Definition at line 114 of file lcldec.c.

Referenced by decode_frame().