dv.c File Reference

DV codec. More...

#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dsputil.h"
#include "get_bits.h"
#include "put_bits.h"
#include "simple_idct.h"
#include "dvdata.h"
#include "dv_tablegen.h"

Go to the source code of this file.

Data Structures
struct	DVVideoContext
struct	BlockInfo
struct	EncBlockInfo

Macros
#define	TEX_VLC_BITS   9

Typedefs
typedef struct DVVideoContext	DVVideoContext
typedef struct BlockInfo	BlockInfo
typedef struct EncBlockInfo	EncBlockInfo

Functions
static int	dv_work_pool_size (const DVprofile *d)
static void	dv_calc_mb_coordinates (const DVprofile *d, int chan, int seq, int slot, uint16_t *tbl)
static int	dv_init_dynamic_tables (const DVprofile *d)
static av_cold int	dvvideo_init (AVCodecContext *avctx)
static av_cold int	dvvideo_init_encoder (AVCodecContext *avctx)
static int	put_bits_left (PutBitContext *s)
static void	dv_decode_ac (GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
static void	bit_copy (PutBitContext *pb, GetBitContext *gb)
static void	dv_calculate_mb_xy (DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y)
static int	dv_decode_video_segment (AVCodecContext *avctx, void *arg)
static av_always_inline int	dv_rl2vlc (int run, int l, int sign, uint32_t *vlc)
static av_always_inline int	dv_rl2vlc_size (int run, int l)
static av_always_inline PutBitContext *	dv_encode_ac (EncBlockInfo *bi, PutBitContext *pb_pool, PutBitContext *pb_end)
static av_always_inline int	dv_guess_dct_mode (DVVideoContext *s, uint8_t *data, int linesize)
static av_always_inline int	dv_init_enc_block (EncBlockInfo *bi, uint8_t *data, int linesize, DVVideoContext *s, int bias)
static void	dv_guess_qnos (EncBlockInfo *blks, int *qnos)
static int	dv_encode_video_segment (AVCodecContext *avctx, void *arg)
static int	dv_write_pack (enum dv_pack_type pack_id, DVVideoContext *c, uint8_t *buf)
static int	dvvideo_close (AVCodecContext *c)

Variables
static RL_VLC_ELEM	dv_rl_vlc [1184]
static const int	vs_total_ac_bits = (100 * 4 + 68*2) * 5
static const int	mb_area_start [5] = { 1, 6, 21, 43, 64 }

Detailed Description

DV codec.

Definition in file dv.c.

Macro Definition Documentation

#define TEX_VLC_BITS   9

Definition at line 67 of file dv.c.

Referenced by decode_block_intra(), dv_decode_ac(), dvvideo_init(), h263_decode_block(), mdec_decode_block_intra(), mpeg1_decode_block_inter(), mpeg1_decode_block_intra(), mpeg1_fast_decode_block_inter(), mpeg2_decode_block_intra(), mpeg2_decode_block_non_intra(), mpeg2_fast_decode_block_intra(), mpeg2_fast_decode_block_non_intra(), and mpeg4_decode_block().

Typedef Documentation

typedef struct BlockInfo BlockInfo

typedef struct DVVideoContext DVVideoContext

typedef struct EncBlockInfo EncBlockInfo

Function Documentation

static void bit_copy ( PutBitContext *  pb, GetBitContext *  gb  )

inlinestatic

Definition at line 438 of file dv.c.

Referenced by dv_decode_video_segment().

static void dv_calc_mb_coordinates ( const DVprofile *  d, int  chan, int  seq, int  slot, uint16_t *  tbl  )

inlinestatic

Definition at line 82 of file dv.c.

Referenced by dv_init_dynamic_tables().

static void dv_calculate_mb_xy ( DVVideoContext *  s, DVwork_chunk *  work_chunk, int  m, int *  mb_x, int *  mb_y  )

inlinestatic

Definition at line 450 of file dv.c.

Referenced by dv_decode_video_segment(), and dv_encode_video_segment().

static void dv_decode_ac ( GetBitContext *  gb, BlockInfo *  mb, DCTELEM *  block  )

static

Definition at line 381 of file dv.c.

Referenced by dv_decode_video_segment().

static int dv_decode_video_segment ( AVCodecContext *  avctx, void *  arg  )

static

Definition at line 462 of file dv.c.

static av_always_inline PutBitContext* dv_encode_ac ( EncBlockInfo *  bi, PutBitContext *  pb_pool, PutBitContext *  pb_end  )

static

Definition at line 711 of file dv.c.

Referenced by dv_encode_video_segment().

static int dv_encode_video_segment ( AVCodecContext *  avctx, void *  arg  )

static

Definition at line 930 of file dv.c.

static av_always_inline int dv_guess_dct_mode ( DVVideoContext *  s, uint8_t *  data, int  linesize  )

static

Definition at line 754 of file dv.c.

Referenced by dv_init_enc_block().

static void dv_guess_qnos ( EncBlockInfo *  blks, int *  qnos  )

inlinestatic

Definition at line 861 of file dv.c.

Referenced by dv_encode_video_segment().

static int dv_init_dynamic_tables ( const DVprofile *  d )

static

Definition at line 197 of file dv.c.

static av_always_inline int dv_init_enc_block ( EncBlockInfo *  bi, uint8_t *  data, int  linesize, DVVideoContext *  s, int  bias  )

static

Definition at line 767 of file dv.c.

Referenced by dv_encode_video_segment().

static av_always_inline int dv_rl2vlc ( int  run, int  l, int  sign, uint32_t *  vlc  )

static

Definition at line 685 of file dv.c.

Referenced by dv_encode_ac().

static av_always_inline int dv_rl2vlc_size ( int  run, int  l  )

static

Definition at line 691 of file dv.c.

Referenced by dv_guess_qnos(), and dv_init_enc_block().

static int dv_work_pool_size ( const DVprofile *  d )

inlinestatic

Definition at line 72 of file dv.c.

Referenced by dv_init_dynamic_tables().

static int dv_write_pack ( enum dv_pack_type  pack_id, DVVideoContext *  c, uint8_t *  buf  )

inlinestatic

Definition at line 1119 of file dv.c.

static int dvvideo_close ( AVCodecContext *  c )

static

Definition at line 1268 of file dv.c.

static av_cold int dvvideo_init ( AVCodecContext *  avctx )

static

Definition at line 258 of file dv.c.

Referenced by dvvideo_init_encoder().

static av_cold int dvvideo_init_encoder ( AVCodecContext *  avctx )

static

Definition at line 350 of file dv.c.

static int put_bits_left ( PutBitContext *  s )

inlinestatic

Definition at line 375 of file dv.c.

Referenced by dv_encode_ac().

Variable Documentation

RL_VLC_ELEM dv_rl_vlc[1184]

static

Definition at line 70 of file dv.c.

const int mb_area_start[5] = { 1, 6, 21, 43, 64 }

static

Definition at line 373 of file dv.c.

Referenced by dv_guess_qnos(), and dv_init_enc_block().

const int vs_total_ac_bits = (100 * 4 + 68*2) * 5

static

Definition at line 372 of file dv.c.

Referenced by dv_encode_video_segment(), and dv_guess_qnos().