libavcodec/dnxhddec.c File Reference

#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dnxhddata.h"
#include "dsputil.h"
#include "thread.h"

Go to the source code of this file.

Data Structures

struct  DNXHDContext

Defines

#define DNXHD_VLC_BITS   9
#define DNXHD_DC_VLC_BITS   7

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


Define Documentation

#define DNXHD_DC_VLC_BITS   7

Definition at line 59 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().

#define DNXHD_VLC_BITS   9

Definition at line 58 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().


Function Documentation

static av_cold int dnxhd_decode_close ( AVCodecContext avctx  )  [static]

Definition at line 415 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 190 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 283 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 277 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 365 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 111 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

static av_cold int dnxhd_decode_init ( AVCodecContext avctx  )  [static]

Definition at line 64 of file dnxhddec.c.

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

Definition at line 289 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 348 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

static int dnxhd_init_vlc ( DNXHDContext ctx,
int  cid 
) [static]

Definition at line 76 of file dnxhddec.c.

Referenced by dnxhd_decode_header(), and dnxhd_encode_init().


Variable Documentation

Initial value:

 {
    .name           = "dnxhd",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_DNXHD,
    .priv_data_size = sizeof(DNXHDContext),
    .init           = dnxhd_decode_init,
    .close          = dnxhd_decode_close,
    .decode         = dnxhd_decode_frame,
    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
    .long_name      = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
}

Definition at line 427 of file dnxhddec.c.


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