dnxhddec.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "blockdsp.h"
#include "get_bits.h"
#include "dnxhddata.h"
#include "idctdsp.h"
#include "internal.h"
#include "thread.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

Functions
static void	dnxhd_decode_dct_block_8 (DNXHDContext *ctx, int16_t *block, int n, int qscale)
static void	dnxhd_decode_dct_block_10 (DNXHDContext *ctx, int16_t *block, int n, int qscale)
static void	dnxhd_decode_dct_block_10_444 (DNXHDContext *ctx, int16_t *block, int n, int qscale)
static av_cold int	dnxhd_decode_init (AVCodecContext *avctx)
static int	dnxhd_init_vlc (DNXHDContext *ctx, uint32_t cid)
static int	dnxhd_decode_header (DNXHDContext *ctx, AVFrame *frame, const uint8_t *buf, int buf_size, int first_field)
static av_always_inline void	dnxhd_decode_dct_block (DNXHDContext *ctx, int16_t *block, int n, int qscale, int index_bits, int level_bias, int level_shift)
static int	dnxhd_decode_macroblock (DNXHDContext *ctx, AVFrame *frame, int x, int y)
static int	dnxhd_decode_macroblocks (DNXHDContext *ctx, AVFrame *frame, const uint8_t *buf, int buf_size)
static int	dnxhd_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	dnxhd_decode_close (AVCodecContext *avctx)

Variables
AVCodec	ff_dnxhd_decoder

Macro Definition Documentation

#define DNXHD_VLC_BITS   9

Definition at line 60 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().

#define DNXHD_DC_VLC_BITS   7

Definition at line 61 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block(), and dnxhd_init_vlc().

Function Documentation

static void dnxhd_decode_dct_block_8 ( DNXHDContext *  ctx, int16_t *  block, int  n, int  qscale  )

static

Definition at line 317 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

static void dnxhd_decode_dct_block_10 ( DNXHDContext *  ctx, int16_t *  block, int  n, int  qscale  )

static

Definition at line 323 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

static void dnxhd_decode_dct_block_10_444 ( DNXHDContext *  ctx, int16_t *  block, int  n, int  qscale  )

static

Definition at line 329 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

static av_cold int dnxhd_decode_init ( AVCodecContext *  avctx )

static

Definition at line 70 of file dnxhddec.c.

static int dnxhd_init_vlc ( DNXHDContext *  ctx, uint32_t  cid  )

static

Definition at line 79 of file dnxhddec.c.

Referenced by dnxhd_decode_header().

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

static

Definition at line 115 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

static av_always_inline void dnxhd_decode_dct_block ( DNXHDContext *  ctx, int16_t *  block, int  n, int  qscale, int  index_bits, int  level_bias, int  level_shift  )

static

Definition at line 223 of file dnxhddec.c.

Referenced by dnxhd_decode_dct_block_10(), dnxhd_decode_dct_block_10_444(), and dnxhd_decode_dct_block_8().

static int dnxhd_decode_macroblock ( DNXHDContext *  ctx, AVFrame *  frame, int  x, int  y  )

static

Definition at line 335 of file dnxhddec.c.

Referenced by dnxhd_decode_macroblocks().

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

static

Definition at line 419 of file dnxhddec.c.

Referenced by dnxhd_decode_frame().

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

static

Definition at line 437 of file dnxhddec.c.

static av_cold int dnxhd_decode_close ( AVCodecContext *  avctx )

static

Definition at line 491 of file dnxhddec.c.

Variable Documentation

AVCodec ff_dnxhd_decoder

Initial value:

= {
    .name           = "dnxhd",
    .long_name      = NULL_IF_CONFIG_SMALL("VC3/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,
}

Definition at line 501 of file dnxhddec.c.