utvideodec.c File Reference

#include <inttypes.h>
#include <stdlib.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "bswapdsp.h"
#include "bytestream.h"
#include "get_bits.h"
#include "internal.h"
#include "thread.h"
#include "utvideo.h"

Go to the source code of this file.

Data Structures
struct	HuffEntry

Macros
#define	CACHED_BITSTREAM_READER   !ARCH_X86_32
#define	UNCHECKED_BITSTREAM_READER   1
#define	VLC_BITS   11

Functions
static int	build_huff (UtvideoContext *c, const uint8_t *src, VLC *vlc, int *fsym, unsigned nb_elems)
static int	decode_plane10 (UtvideoContext *c, int plane_no, uint16_t *dst, ptrdiff_t stride, int width, int height, const uint8_t *src, const uint8_t *huff, int use_pred)
static int	compute_cmask (int plane_no, int interlaced, enum AVPixelFormat pix_fmt)
static int	decode_plane (UtvideoContext *c, int plane_no, uint8_t *dst, ptrdiff_t stride, int width, int height, const uint8_t *src, int use_pred)
static void	restore_median_planar (UtvideoContext *c, uint8_t *src, ptrdiff_t stride, int width, int height, int slices, int rmode)
static void	restore_median_planar_il (UtvideoContext *c, uint8_t *src, ptrdiff_t stride, int width, int height, int slices, int rmode)
static void	restore_gradient_planar (UtvideoContext *c, uint8_t *src, ptrdiff_t stride, int width, int height, int slices, int rmode)
static void	restore_gradient_planar_il (UtvideoContext *c, uint8_t *src, ptrdiff_t stride, int width, int height, int slices, int rmode)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
const AVCodec	ff_utvideo_decoder

Detailed Description

Ut Video decoder

Definition in file utvideodec.c.

Macro Definition Documentation

CACHED_BITSTREAM_READER

#define CACHED_BITSTREAM_READER   !ARCH_X86_32

Definition at line 30 of file utvideodec.c.

UNCHECKED_BITSTREAM_READER

#define UNCHECKED_BITSTREAM_READER   1

Definition at line 31 of file utvideodec.c.

VLC_BITS

#define VLC_BITS   11

Function Documentation

build_huff()

static int build_huff ( UtvideoContext *  c, const uint8_t *  src, VLC *  vlc, int *  fsym, unsigned  nb_elems  )

static

Definition at line 48 of file utvideodec.c.

Referenced by decode_plane(), and decode_plane10().

decode_plane10()

static int decode_plane10 ( UtvideoContext *  c, int  plane_no, uint16_t *  dst, ptrdiff_t  stride, int  width, int  height, const uint8_t *  src, const uint8_t *  huff, int  use_pred  )

static

Definition at line 90 of file utvideodec.c.

Referenced by decode_frame().

compute_cmask()

static int compute_cmask ( int  plane_no, int  interlaced, enum AVPixelFormat  pix_fmt  )

static

Definition at line 193 of file utvideodec.c.

Referenced by decode_plane().

decode_plane()

static int decode_plane ( UtvideoContext *  c, int  plane_no, uint8_t *  dst, ptrdiff_t  stride, int  width, int  height, const uint8_t *  src, int  use_pred  )

static

Definition at line 203 of file utvideodec.c.

Referenced by decode_frame().

restore_median_planar()

static void restore_median_planar ( UtvideoContext *  c, uint8_t *  src, ptrdiff_t  stride, int  width, int  height, int  slices, int  rmode  )

static

Definition at line 357 of file utvideodec.c.

Referenced by decode_frame().

restore_median_planar_il()

static void restore_median_planar_il ( UtvideoContext *  c, uint8_t *  src, ptrdiff_t  stride, int  width, int  height, int  slices, int  rmode  )

static

Definition at line 409 of file utvideodec.c.

Referenced by decode_frame().

restore_gradient_planar()

static void restore_gradient_planar ( UtvideoContext *  c, uint8_t *  src, ptrdiff_t  stride, int  width, int  height, int  slices, int  rmode  )

static

Definition at line 464 of file utvideodec.c.

Referenced by decode_frame().

restore_gradient_planar_il()

static void restore_gradient_planar_il ( UtvideoContext *  c, uint8_t *  src, ptrdiff_t  stride, int  width, int  height, int  slices, int  rmode  )

static

Definition at line 505 of file utvideodec.c.

Referenced by decode_frame().

decode_frame()

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

static

Definition at line 560 of file utvideodec.c.

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 883 of file utvideodec.c.

decode_end()

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 1045 of file utvideodec.c.

Variable Documentation

ff_utvideo_decoder

const AVCodec ff_utvideo_decoder

Initial value:

= {
    .name           = "utvideo",
    .long_name      = NULL_IF_CONFIG_SMALL("Ut Video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_UTVIDEO,
    .priv_data_size = sizeof(UtvideoContext),
    .init           = decode_init,
    .close          = decode_end,
    .decode         = decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
}

Definition at line 1054 of file utvideodec.c.