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 "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "lcl.h"
#include "thread.h"

Go to the source code of this file.

Data Structures
struct	LclDecContext

Functions
static unsigned int	mszh_decomp (const unsigned char *srcptr, int srclen, unsigned char *destptr, unsigned int destsize)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

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.

Function Documentation

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

static

Parameters

srcptr	compressed source buffer, must be padded with at least 5 extra bytes
destptr	must be padded sufficiently for av_memcpy_backptr

Definition at line 76 of file lcldec.c.

Referenced by decode_frame().

static int decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 158 of file lcldec.c.

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 472 of file lcldec.c.

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 633 of file lcldec.c.