libavcodec/utvideo.c File Reference

Ut Video decoder. More...

#include <stdlib.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "dsputil.h"
#include "thread.h"

Go to the source code of this file.

Data Structures
struct	UtvideoContext
struct	HuffEntry
Typedefs
typedef struct UtvideoContext	UtvideoContext
typedef struct HuffEntry	HuffEntry
Enumerations
enum	{ PRED_NONE = 0, PRED_LEFT, PRED_GRADIENT, PRED_MEDIAN }
Functions
static int	huff_cmp (const void *a, const void *b)
static int	build_huff (const uint8_t *src, VLC *vlc, int *fsym)
static int	decode_plane (UtvideoContext *c, int plane_no, uint8_t *dst, int step, int stride, int width, int height, const uint8_t *src, int src_size, int use_pred)
static void	restore_rgb_planes (uint8_t *src, int step, int stride, int width, int height)
static void	restore_median (uint8_t *src, int step, int stride, int width, int height, int slices, int rmode)
static void	restore_median_il (uint8_t *src, int step, int stride, int width, int height, int slices, int rmode)
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)
Variables
static const int	rgb_order [4] = { 1, 2, 0, 3 }
AVCodec	ff_utvideo_decoder

---

Detailed Description

Ut Video decoder.

Definition in file utvideo.c.

---

Typedef Documentation

typedef struct HuffEntry HuffEntry

typedef struct UtvideoContext UtvideoContext

---

Enumeration Type Documentation

anonymous enum

Enumerator:

PRED_NONE
PRED_LEFT
PRED_GRADIENT
PRED_MEDIAN

Definition at line 36 of file utvideo.c.

---

Function Documentation

static int build_huff	(	const uint8_t *	src,
		VLC *	vlc,
		int *	fsym
	)			[static]

Definition at line 70 of file utvideo.c.

Referenced by decode_plane().

static av_cold int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 554 of file utvideo.c.

static int decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 357 of file utvideo.c.

static av_cold int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 498 of file utvideo.c.

static int decode_plane	(	UtvideoContext *	c,
		int	plane_no,
		uint8_t *	dst,
		int	step,
		int	stride,
		int	width,
		int	height,
		const uint8_t *	src,
		int	src_size,
		int	use_pred
	)			[static]

Definition at line 112 of file utvideo.c.

Referenced by decode_frame().

static int huff_cmp	(	const void *	a,
		const void *	b
	)			[static]

Definition at line 64 of file utvideo.c.

Referenced by build_huff().

static void restore_median	(	uint8_t *	src,
		int	step,
		int	stride,
		int	width,
		int	height,
		int	slices,
		int	rmode
	)			[static]

Definition at line 237 of file utvideo.c.

Referenced by decode_frame().

static void restore_median_il	(	uint8_t *	src,
		int	step,
		int	stride,
		int	width,
		int	height,
		int	slices,
		int	rmode
	)			[static]

Definition at line 290 of file utvideo.c.

Referenced by decode_frame().

static void restore_rgb_planes	(	uint8_t *	src,
		int	step,
		int	stride,
		int	width,
		int	height
	)			[static]

Definition at line 220 of file utvideo.c.

Referenced by decode_frame().

---

Variable Documentation

AVCodec ff_utvideo_decoder

Initial value:

 {
    .name           = "utvideo",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_UTVIDEO,
    .priv_data_size = sizeof(UtvideoContext),
    .init           = decode_init,
    .close          = decode_end,
    .decode         = decode_frame,
    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
    .long_name      = NULL_IF_CONFIG_SMALL("Ut Video"),
}

Definition at line 566 of file utvideo.c.

const int rgb_order[4] = { 1, 2, 0, 3 } [static]

Definition at line 218 of file utvideo.c.

Referenced by decode_frame().