libavcodec/zmbvenc.c File Reference

Zip Motion Blocks Video encoder. More...

#include <stdio.h>
#include <stdlib.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include <zlib.h>

Go to the source code of this file.

Data Structures
struct	ZmbvEncContext
	Encoder context. More...
Defines
#define	ZMBV_KEYFRAME   1
#define	ZMBV_DELTAPAL   2
#define	ZMBV_BLOCK   16
Functions
static int	block_cmp (uint8_t *src, int stride, uint8_t *src2, int stride2, int bw, int bh, int *xored)
	Block comparing function XXX should be optimized and moved to DSPContext TODO handle out of edge ME.
static int	zmbv_me (ZmbvEncContext *c, uint8_t *src, int sstride, uint8_t *prev, int pstride, int x, int y, int *mx, int *my, int *xored)
	Motion estimation function TODO make better ME decisions.
static int	encode_frame (AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)
static av_cold int	encode_init (AVCodecContext *avctx)
	Init zmbv encoder.
static av_cold int	encode_end (AVCodecContext *avctx)
	Uninit zmbv encoder.
Variables
static int	score_tab [256]
AVCodec	ff_zmbv_encoder

---

Detailed Description

Zip Motion Blocks Video encoder.

Definition in file zmbvenc.c.

---

Define Documentation

#define ZMBV_BLOCK   16

Definition at line 38 of file zmbvenc.c.

Referenced by encode_frame(), encode_init(), and zmbv_me().

#define ZMBV_DELTAPAL   2

Definition at line 36 of file zmbvenc.c.

#define ZMBV_KEYFRAME   1

Definition at line 35 of file zmbvenc.c.

---

Function Documentation

static int block_cmp	(	uint8_t *	src,
		int	stride,
		uint8_t *	src2,
		int	stride2,
		int	bw,
		int	bh,
		int *	xored
	)			[inline, static]

Block comparing function XXX should be optimized and moved to DSPContext TODO handle out of edge ME.

Definition at line 64 of file zmbvenc.c.

Referenced by zmbv_me().

static av_cold int encode_end

(

AVCodecContext *

avctx

)

[static]

Uninit zmbv encoder.

Definition at line 313 of file zmbvenc.c.

static int encode_frame	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		void *	data
	)			[static]

Definition at line 118 of file zmbvenc.c.

static av_cold int encode_init

(

AVCodecContext *

avctx

)

[static]

Init zmbv encoder.

Definition at line 246 of file zmbvenc.c.

static int zmbv_me	(	ZmbvEncContext *	c,
		uint8_t *	src,
		int	sstride,
		uint8_t *	prev,
		int	pstride,
		int	x,
		int	y,
		int *	mx,
		int *	my,
		int *	xored
	)			[static]

Motion estimation function TODO make better ME decisions.

Definition at line 91 of file zmbvenc.c.

Referenced by encode_frame().

---

Variable Documentation

AVCodec ff_zmbv_encoder

Initial value:

 {
    .name           = "zmbv",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_ZMBV,
    .priv_data_size = sizeof(ZmbvEncContext),
    .init           = encode_init,
    .encode         = encode_frame,
    .close          = encode_end,
    .pix_fmts = (const enum PixelFormat[]){PIX_FMT_PAL8, PIX_FMT_NONE},
    .long_name = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
}

Definition at line 326 of file zmbvenc.c.

int score_tab[256] [static]

Definition at line 58 of file zmbvenc.c.

Referenced by block_cmp(), dct_quantize_trellis_c(), and encode_init().