FFmpeg
Data Structures | Functions
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
srcptrcompressed source buffer, must be padded with at least 5 extra bytes
destptrmust 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.

Referenced by decode_end().

static av_cold int decode_init ( AVCodecContext avctx)
static

Definition at line 471 of file lcldec.c.

Referenced by decode_end().

static av_cold int decode_end ( AVCodecContext avctx)
static

Definition at line 625 of file lcldec.c.