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utvideodec.c File Reference

Ut Video decoder. More...

#include <inttypes.h>
#include <stdlib.h>
#include "libavutil/intreadwrite.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.

Macros

#define UNCHECKED_BITSTREAM_READER   1
 
#define VLC_BITS   11
 

Functions

static int build_huff10 (const uint8_t *src, VLC *vlc, int *fsym)
 
static int build_huff (const uint8_t *src, VLC *vlc, int *fsym)
 
static int decode_plane10 (UtvideoContext *c, int plane_no, uint16_t *dst, int step, ptrdiff_t stride, int width, int height, const uint8_t *src, const uint8_t *huff, int use_pred)
 
static int decode_plane (UtvideoContext *c, int plane_no, uint8_t *dst, int step, 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

AVCodec ff_utvideo_decoder
 

Detailed Description

Ut Video decoder.

Definition in file utvideodec.c.

Macro Definition Documentation

#define UNCHECKED_BITSTREAM_READER   1

Definition at line 30 of file utvideodec.c.

#define VLC_BITS   11

Function Documentation

static int build_huff10 ( const uint8_t src,
VLC vlc,
int fsym 
)
static

Definition at line 41 of file utvideodec.c.

Referenced by decode_plane10().

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

Definition at line 85 of file utvideodec.c.

Referenced by decode_plane().

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

Definition at line 128 of file utvideodec.c.

Referenced by decode_frame().

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

Definition at line 232 of file utvideodec.c.

Referenced by decode_frame().

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 340 of file utvideodec.c.

Referenced by decode_frame().

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 388 of file utvideodec.c.

Referenced by decode_frame().

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 439 of file utvideodec.c.

Referenced by decode_frame().

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 477 of file utvideodec.c.

Referenced by decode_frame().

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

Definition at line 528 of file utvideodec.c.

static av_cold int decode_init ( AVCodecContext avctx)
static

Definition at line 789 of file utvideodec.c.

static av_cold int decode_end ( AVCodecContext avctx)
static

Definition at line 892 of file utvideodec.c.

Variable Documentation

AVCodec ff_utvideo_decoder
Initial value:
= {
.name = "utvideo",
.long_name = NULL_IF_CONFIG_SMALL("Ut Video"),
.priv_data_size = sizeof(UtvideoContext),
.close = decode_end,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
}
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static av_cold int decode_end(AVCodecContext *avctx)
Definition: utvideodec.c:892
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
static av_cold int decode_init(AVCodecContext *avctx)
Definition: utvideodec.c:789
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1064
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: utvideodec.c:528
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:1001

Definition at line 901 of file utvideodec.c.