dnxhddec.c File Reference
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dnxhddata.h"
#include "dsputil.h"

Go to the source code of this file.

Data Structures

struct  DNXHDContext

Macros

#define DNXHD_VLC_BITS   9
#define DNXHD_DC_VLC_BITS   7

Typedefs

typedef struct DNXHDContext DNXHDContext

Functions

static void dnxhd_decode_dct_block_8 (DNXHDContext *ctx, DCTELEM *block, int n, int qscale)
static void dnxhd_decode_dct_block_10 (DNXHDContext *ctx, DCTELEM *block, int n, int qscale)
static av_cold int dnxhd_decode_init (AVCodecContext *avctx)
static int dnxhd_init_vlc (DNXHDContext *ctx, int cid)
static int dnxhd_decode_header (DNXHDContext *ctx, const uint8_t *buf, int buf_size, int first_field)
static av_always_inline void dnxhd_decode_dct_block (DNXHDContext *ctx, DCTELEM *block, int n, int qscale, int index_bits, int level_bias, int level_shift)
static int dnxhd_decode_macroblock (DNXHDContext *ctx, int x, int y)
static int dnxhd_decode_macroblocks (DNXHDContext *ctx, const uint8_t *buf, int buf_size)
static int dnxhd_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int dnxhd_decode_close (AVCodecContext *avctx)

Variables

AVCodec ff_dnxhd_decoder

Macro Definition Documentation

#define DNXHD_DC_VLC_BITS   7

Definition at line 55 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().

#define DNXHD_VLC_BITS   9

Definition at line 54 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().

Typedef Documentation

typedef struct DNXHDContext DNXHDContext

Function Documentation

static av_cold int dnxhd_decode_close ( AVCodecContext avctx)
static

Definition at line 388 of file dnxhddec.c.

static av_always_inline void dnxhd_decode_dct_block ( DNXHDContext ctx,
DCTELEM block,
int  n,
int  qscale,
int  index_bits,
int  level_bias,
int  level_shift 
)
static

Definition at line 181 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block_10(), and dnxhd_decode_dct_block_8().

static void dnxhd_decode_dct_block_10 ( DNXHDContext ctx,
DCTELEM block,
int  n,
int  qscale 
)
static

Definition at line 265 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

static void dnxhd_decode_dct_block_8 ( DNXHDContext ctx,
DCTELEM block,
int  n,
int  qscale 
)
static

Definition at line 259 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

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

Definition at line 339 of file dnxhddec.c.

static int dnxhd_decode_header ( DNXHDContext ctx,
const uint8_t *  buf,
int  buf_size,
int  first_field 
)
static

Definition at line 102 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

static av_cold int dnxhd_decode_init ( AVCodecContext avctx)
static

Definition at line 60 of file dnxhddec.c.

static int dnxhd_decode_macroblock ( DNXHDContext ctx,
int  x,
int  y 
)
static

Definition at line 271 of file dnxhddec.c.

Referenced by dnxhd_decode_macroblocks().

static int dnxhd_decode_macroblocks ( DNXHDContext ctx,
const uint8_t *  buf,
int  buf_size 
)
static

Definition at line 322 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

static int dnxhd_init_vlc ( DNXHDContext ctx,
int  cid 
)
static

Definition at line 71 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

Variable Documentation

AVCodec ff_dnxhd_decoder
Initial value:
{
.name = "dnxhd",
.priv_data_size = sizeof(DNXHDContext),
.capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
}

Definition at line 400 of file dnxhddec.c.