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 558 of file utvideo.c.

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

static

Definition at line 361 of file utvideo.c.

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 502 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 292 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 570 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().