zmbv.c File Reference

Zip Motion Blocks Video decoder. More...

#include <stddef.h>
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "zlib_wrapper.h"
#include <zlib.h>

Go to the source code of this file.

Data Structures
struct	ZmbvContext

Macros
#define	ZMBV_KEYFRAME   1
#define	ZMBV_DELTAPAL   2

Enumerations
enum	ZmbvFormat {   ZMBV_FMT_NONE = 0 , ZMBV_FMT_1BPP = 1 , ZMBV_FMT_2BPP = 2 , ZMBV_FMT_4BPP = 3 ,   ZMBV_FMT_8BPP = 4 , ZMBV_FMT_15BPP = 5 , ZMBV_FMT_16BPP = 6 , ZMBV_FMT_24BPP = 7 ,   ZMBV_FMT_32BPP = 8 }

Functions
static int	zmbv_decode_xor_8 (ZmbvContext *c)
	Decode XOR'ed frame - 8bpp version.
static int	zmbv_decode_xor_16 (ZmbvContext *c)
	Decode XOR'ed frame - 15bpp and 16bpp version.
static int	zmbv_decode_xor_32 (ZmbvContext *c)
	Decode XOR'ed frame - 32bpp version.
static int	zmbv_decode_intra (ZmbvContext *c)
	Decode intraframe.
static int	decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
const FFCodec	ff_zmbv_decoder

Detailed Description

Zip Motion Blocks Video decoder.

Definition in file zmbv.c.

Macro Definition Documentation

ZMBV_KEYFRAME

#define ZMBV_KEYFRAME   1

Definition at line 41 of file zmbv.c.

Referenced by decode_frame(), and encode_frame().

ZMBV_DELTAPAL

#define ZMBV_DELTAPAL   2

Definition at line 42 of file zmbv.c.

Referenced by decode_frame(), encode_frame(), and zmbv_decode_xor_8().

Enumeration Type Documentation

ZmbvFormat

enum ZmbvFormat

Enumerator
ZMBV_FMT_NONE
ZMBV_FMT_1BPP
ZMBV_FMT_2BPP
ZMBV_FMT_4BPP
ZMBV_FMT_8BPP
ZMBV_FMT_15BPP
ZMBV_FMT_16BPP
ZMBV_FMT_24BPP
ZMBV_FMT_32BPP

Definition at line 44 of file zmbv.c.

Function Documentation

zmbv_decode_xor_8()

static int zmbv_decode_xor_8 ( ZmbvContext * c )

static

Decode XOR'ed frame - 8bpp version.

Definition at line 84 of file zmbv.c.

Referenced by decode_frame().

zmbv_decode_xor_16()

static int zmbv_decode_xor_16 ( ZmbvContext * c )

static

Decode XOR'ed frame - 15bpp and 16bpp version.

Definition at line 165 of file zmbv.c.

Referenced by decode_frame().

zmbv_decode_xor_32()

static int zmbv_decode_xor_32 ( ZmbvContext * c )

static

Decode XOR'ed frame - 32bpp version.

Definition at line 331 of file zmbv.c.

Referenced by decode_frame().

zmbv_decode_intra()

static int zmbv_decode_intra ( ZmbvContext * c )

static

Decode intraframe.

Definition at line 408 of file zmbv.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext * avctx, AVFrame * frame, int * got_frame, AVPacket * avpkt )

static

Definition at line 422 of file zmbv.c.

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 618 of file zmbv.c.

decode_end()

static av_cold int decode_end ( AVCodecContext * avctx )

static

Definition at line 647 of file zmbv.c.

Variable Documentation

ff_zmbv_decoder

const FFCodec ff_zmbv_decoder

Initial value:

= {
    .p.name         = "zmbv",
    CODEC_LONG_NAME("Zip Motion Blocks Video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_ZMBV,
    .priv_data_size = sizeof(ZmbvContext),
    .init           = decode_init,
    .close          = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 660 of file zmbv.c.