zmbvenc.c File Reference

Zip Motion Blocks Video encoder. More...

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

Go to the source code of this file.

Data Structures
struct	ZmbvEncContext
	Encoder context. More...

Macros
#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, AVPacket *pkt, const AVFrame *pict, int *got_packet)
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.

Macro Definition Documentation

#define ZMBV_KEYFRAME   1

Definition at line 37 of file zmbvenc.c.

Referenced by encode_frame().

#define ZMBV_DELTAPAL   2

Definition at line 38 of file zmbvenc.c.

Referenced by encode_frame().

#define ZMBV_BLOCK   16

Definition at line 40 of file zmbvenc.c.

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

Function Documentation

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

inlinestatic

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

Definition at line 66 of file zmbvenc.c.

Referenced by zmbv_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  )

static

Motion estimation function TODO make better ME decisions.

Definition at line 93 of file zmbvenc.c.

Referenced by encode_frame().

static int encode_frame ( AVCodecContext *  avctx, AVPacket *  pkt, const AVFrame *  pict, int *  got_packet  )

static

Definition at line 120 of file zmbvenc.c.

static av_cold int encode_init ( AVCodecContext *  avctx )

static

Init zmbv encoder.

Definition at line 258 of file zmbvenc.c.

static av_cold int encode_end ( AVCodecContext *  avctx )

static

Uninit zmbv encoder.

Definition at line 325 of file zmbvenc.c.

Variable Documentation

int score_tab[256]

static

Definition at line 60 of file zmbvenc.c.

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

AVCodec ff_zmbv_encoder

Initial value:

= {
    .name           = "zmbv",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_ZMBV,
    .priv_data_size = sizeof(ZmbvEncContext),
    .init           = encode_init,
    .encode2        = encode_frame,
    .close          = encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_PAL8, AV_PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
}

Definition at line 338 of file zmbvenc.c.