kmvc.c File Reference

Karl Morton's Video Codec decoder. More...

#include <stdio.h>
#include <stdlib.h>
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "libavutil/common.h"

Classes
struct	KmvcContext
struct	BitBuf

Macros
#define	KMVC_KEYFRAME   0x80
#define	KMVC_PALETTE   0x40
#define	KMVC_METHOD   0x0F
#define	MAX_PALSIZE   256
#define	BLK(data, x, y)   data[av_clip((x) + (y) * 320, 0, 320 * 200 -1)]
#define	kmvc_init_getbits(bb, g)   bb.bits = 7; bb.bitbuf = bytestream2_get_byte(g);
#define	kmvc_getbit(bb, g, res)

Typedefs
typedef struct KmvcContext	KmvcContext
typedef struct BitBuf	BitBuf

Variables
AVCodec	ff_kmvc_decoder

Detailed Description

Karl Morton's Video Codec decoder.

Macro Definition Documentation

kmvc_getbit

#define kmvc_getbit	(		bb,
			g,
			res
	)

Value:

{\
    res = 0; \
    if (bb.bitbuf & (1 << bb.bits)) res = 1; \
    bb.bits--; \
    if(bb.bits == -1) { \
        bb.bitbuf = bytestream2_get_byte(g); \
        bb.bits = 7; \
    } \
}

Variable Documentation

ff_kmvc_decoder

AVCodec ff_kmvc_decoder

Initial value:

= {
    .name           = "kmvc",
    .long_name      = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_KMVC,
    .priv_data_size = sizeof(KmvcContext),
    .init           = decode_init,
    .decode         = decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}