hvirtual/quicktime/ffmpeg/libavcodec/loco.c File Reference

#include "avcodec.h"
#include "common.h"
#include "bitstream.h"
#include "golomb.h"

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Data Structures
struct	LOCOContext
struct	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, uint8_t *buf, int buf_size, int step)
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	decode_init (AVCodecContext *avctx)
Variables
AVCodec	loco_decoder

---

Detailed Description

LOCO codec.

Definition in file loco.c.

---

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 31 of file loco.c.

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Function Documentation

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

Definition at line 158 of file loco.c.

References av_log(), AV_LOG_ERROR, AVCodecContext::get_buffer, AVCodecContext::height, LOCO_CRGB, LOCO_CYUY2, LOCO_CYV12, loco_decode_plane(), LOCO_RGB, LOCO_RGBA, LOCO_UYVY, LOCO_YUY2, LOCO_YV12, LOCOContext::mode, LOCOContext::pic, AVCodecContext::priv_data, AVCodecContext::release_buffer, and AVCodecContext::width.

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static int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 228 of file loco.c.

References av_log(), AV_LOG_ERROR, AV_LOG_INFO, LOCOContext::avctx, AVCodecContext::debug, AVCodecContext::extradata, AVCodecContext::extradata_size, FF_DEBUG_PICT_INFO, LE_32, LOCO_CRGB, LOCO_CRGBA, LOCO_CYUY2, LOCO_CYV12, LOCO_RGB, LOCO_RGBA, LOCO_UYVY, LOCO_YUY2, LOCO_YV12, LOCOContext::lossy, LOCOContext::mode, AVCodecContext::pix_fmt, PIX_FMT_BGR24, PIX_FMT_RGBA32, PIX_FMT_YUV420P, PIX_FMT_YUV422P, and AVCodecContext::priv_data.

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

Definition at line 118 of file loco.c.

References RICEContext::count, RICEContext::gb, get_bits_count(), init_get_bits(), loco_get_rice(), loco_predict(), LOCOContext::lossy, RICEContext::lossy, RICEContext::run, RICEContext::run2, RICEContext::save, and RICEContext::sum.

Referenced by decode_frame().

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static int loco_get_rice

(

RICEContext *

r

)

[inline, static]

Definition at line 72 of file loco.c.

References RICEContext::gb, get_ur_golomb_jpegls(), loco_get_rice_param(), loco_update_rice_param(), RICEContext::lossy, RICEContext::run, RICEContext::run2, and RICEContext::save.

Referenced by loco_decode_plane().

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static int loco_get_rice_param

(

RICEContext *

r

)

[static]

Definition at line 48 of file loco.c.

References RICEContext::count, and RICEContext::sum.

Referenced by loco_get_rice().

static int loco_predict	(	uint8_t *	data,
		int	stride,
		int	step
	)			[inline, static]

Definition at line 107 of file loco.c.

References a, b, and c.

Referenced by loco_decode_plane().

static void loco_update_rice_param	(	RICEContext *	r,
		int	val
	)			[inline, static]

Definition at line 61 of file loco.c.

References RICEContext::count, and RICEContext::sum.

Referenced by loco_get_rice().

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Variable Documentation

AVCodec loco_decoder

Initial value:

 {
    "loco",
    CODEC_TYPE_VIDEO,
    CODEC_ID_LOCO,
    sizeof(LOCOContext),
    decode_init,
    NULL,
    NULL,
    decode_frame,
    CODEC_CAP_DR1,
}

Definition at line 275 of file loco.c.

Referenced by avcodec_register_all().