loco.c File Reference

LOCO codec. More...

#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
#include "internal.h"
#include "mathops.h"

Include dependency graph for loco.c:

Go to the source code of this file.

Data Structures
struct	LOCOContext
struct	RICEContext

Macros
#define	ADVANCE_BY_DECODED

Typedefs
typedef struct LOCOContext	LOCOContext
typedef struct RICEContext	RICEContext

Enumerations
enum	LOCO_MODE {   LOCO_UNKN = 0, LOCO_CYUY2 = -1, LOCO_CRGB = -2, LOCO_CRGBA = -3,   LOCO_CYV12 = -4, LOCO_YUY2 = 1, LOCO_UYVY = 2, LOCO_RGB = 3,   LOCO_RGBA = 4, LOCO_YV12 = 5 }

Functions
static int	loco_get_rice_param (RICEContext *r)
static void	loco_update_rice_param (RICEContext *r, int val)
static int	loco_get_rice (RICEContext *r)
static int	loco_predict (uint8_t *data, int stride, int step)
static int	loco_decode_plane (LOCOContext *l, uint8_t *data, int width, int height, int stride, const uint8_t *buf, int buf_size, int step)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)

Variables
AVCodec	ff_loco_decoder

Detailed Description

LOCO codec.

Definition in file loco.c.

Macro Definition Documentation

#define ADVANCE_BY_DECODED

Value:

do { \
    if (decoded < 0 || decoded >= buf_size) goto buf_too_small; \
    buf += decoded; buf_size -= decoded; \
} while(0)

Referenced by decode_frame().

Typedef Documentation

typedef struct LOCOContext LOCOContext

typedef struct RICEContext RICEContext

Enumeration Type Documentation

enum LOCO_MODE

Enumerator
LOCO_UNKN
LOCO_CYUY2
LOCO_CRGB
LOCO_CRGBA
LOCO_CYV12
LOCO_YUY2
LOCO_UYVY
LOCO_RGB
LOCO_RGBA
LOCO_YV12

Definition at line 33 of file loco.c.

Function Documentation

static int decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 171 of file loco.c.

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 250 of file loco.c.

static int loco_decode_plane ( LOCOContext *  l, uint8_t *  data, int  width, int  height, int  stride, const uint8_t *  buf, int  buf_size, int  step  )

static

Definition at line 128 of file loco.c.

Referenced by decode_frame().

static int loco_get_rice ( RICEContext *  r )

inlinestatic

Definition at line 83 of file loco.c.

Referenced by loco_decode_plane().

static int loco_get_rice_param ( RICEContext *  r )

static

Definition at line 59 of file loco.c.

Referenced by loco_get_rice().

static int loco_predict ( uint8_t *  data, int  stride, int  step  )

inlinestatic

Definition at line 117 of file loco.c.

Referenced by loco_decode_plane().

static void loco_update_rice_param ( RICEContext *  r, int  val  )

inlinestatic

Definition at line 72 of file loco.c.

Referenced by loco_get_rice().

Variable Documentation

AVCodec ff_loco_decoder

Initial value:

= {
    .name           = "loco",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_LOCO,
    .priv_data_size = sizeof(LOCOContext),
    .init           = decode_init,
    .decode         = decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .long_name      = NULL_IF_CONFIG_SMALL("LOCO"),
}

Definition at line 303 of file loco.c.