libavcodec/dvdata.h File Reference

Constants for DV codec. More...

#include "avcodec.h"
#include "dsputil.h"
#include "get_bits.h"
#include "dv_profile.h"

Go to the source code of this file.

Data Structures
struct	DVVideoContext
Defines
#define	DV_PROFILE_IS_HD(p)   ((p)->video_stype & 0x10)
#define	DV_PROFILE_IS_1080i50(p)   (((p)->video_stype == 0x14) && ((p)->dsf == 1))
#define	DV_PROFILE_IS_720p50(p)   (((p)->video_stype == 0x18) && ((p)->dsf == 1))
#define	DV_MAX_FRAME_SIZE   576000
	largest possible DV frame, in bytes (1080i50)
#define	DV_MAX_BPM   8
	maximum number of blocks per macroblock in any DV format
#define	TEX_VLC_BITS   9
Enumerations
enum	dv_section_type {   dv_sect_header = 0x1f, dv_sect_subcode = 0x3f, dv_sect_vaux = 0x56, dv_sect_audio = 0x76,   dv_sect_video = 0x96 }
enum	dv_pack_type {   dv_header525 = 0x3f, dv_header625 = 0xbf, dv_timecode = 0x13, dv_audio_source = 0x50,   dv_audio_control = 0x51, dv_audio_recdate = 0x52, dv_audio_rectime = 0x53, dv_video_source = 0x60,   dv_video_control = 0x61, dv_video_recdate = 0x62, dv_video_rectime = 0x63, dv_unknown_pack = 0xff }
Functions
int	ff_dv_init_dynamic_tables (const DVprofile *d)
int	ff_dvvideo_init (AVCodecContext *avctx)
static int	dv_work_pool_size (const DVprofile *d)
static void	dv_calculate_mb_xy (DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y)
Variables
const uint8_t	ff_dv_quant_shifts [22][4]
const uint8_t	ff_dv_quant_offset [4]
const int	ff_dv_iweight_88 [64]
const int	ff_dv_iweight_248 [64]
const int	ff_dv_iweight_1080_y [64]
	The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
const int	ff_dv_iweight_1080_c [64]
const int	ff_dv_iweight_720_y [64]
const int	ff_dv_iweight_720_c [64]
RL_VLC_ELEM	ff_dv_rl_vlc [1184]

---

Detailed Description

Constants for DV codec.

Definition in file dvdata.h.

---

Define Documentation

#define DV_MAX_BPM   8

maximum number of blocks per macroblock in any DV format

Definition at line 94 of file dvdata.h.

Referenced by dv_decode_video_segment(), and dv_encode_video_segment().

#define DV_MAX_FRAME_SIZE   576000

largest possible DV frame, in bytes (1080i50)

Definition at line 89 of file dvdata.h.

#define DV_PROFILE_IS_1080i50

(

p

)

(((p)->video_stype == 0x14) && ((p)->dsf == 1))

Definition at line 83 of file dvdata.h.

Referenced by dv_work_pool_size(), and ff_dv_init_dynamic_tables().

#define DV_PROFILE_IS_720p50

(

p

)

(((p)->video_stype == 0x18) && ((p)->dsf == 1))

Definition at line 84 of file dvdata.h.

Referenced by dv_work_pool_size(), and ff_dv_init_dynamic_tables().

#define DV_PROFILE_IS_HD

(

p

)

((p)->video_stype & 0x10)

Definition at line 82 of file dvdata.h.

Referenced by dv_decode_video_segment(), and ff_dv_init_dynamic_tables().

#define TEX_VLC_BITS   9

Definition at line 96 of file dvdata.h.

Referenced by decode_block_intra(), dv_decode_ac(), ff_dvvideo_init(), ff_msmpeg4_decode_block(), 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().

---

Enumeration Type Documentation

enum dv_pack_type

Enumerator:

dv_header525
dv_header625
dv_timecode
dv_audio_source
dv_audio_control
dv_audio_recdate
dv_audio_rectime
dv_video_source
dv_video_control
dv_video_recdate
dv_video_rectime
dv_unknown_pack

Definition at line 57 of file dvdata.h.

enum dv_section_type

Enumerator:

dv_sect_header
dv_sect_subcode
dv_sect_vaux
dv_sect_audio
dv_sect_video

Definition at line 49 of file dvdata.h.

---

Function Documentation

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

Definition at line 113 of file dvdata.h.

Referenced by dv_decode_video_segment(), and dv_encode_video_segment().

static int dv_work_pool_size

(

const DVprofile *

d

)

[inline, static]

Definition at line 103 of file dvdata.h.

Referenced by dvvideo_decode_frame(), and ff_dv_init_dynamic_tables().

int ff_dv_init_dynamic_tables

(

const DVprofile *

d

)

Definition at line 178 of file dv.c.

Referenced by dvvideo_decode_frame().

int ff_dvvideo_init

(

AVCodecContext *

avctx

)

Definition at line 239 of file dv.c.

Referenced by dvvideo_init_encoder().

---

Variable Documentation

const int ff_dv_iweight_1080_c[64]

Definition at line 92 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const int ff_dv_iweight_1080_y[64]

The "inverse" DV100 weights are actually just the spec weights (zig-zagged).

Definition at line 82 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const int ff_dv_iweight_248[64]

Definition at line 68 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const int ff_dv_iweight_720_c[64]

Definition at line 112 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const int ff_dv_iweight_720_y[64]

Definition at line 102 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const int ff_dv_iweight_88[64]

Definition at line 58 of file dvdata.c.

Referenced by ff_dv_init_dynamic_tables().

const uint8_t ff_dv_quant_offset[4]

Definition at line 56 of file dvdata.c.

Referenced by dv_decode_video_segment(), and dv_guess_qnos().

const uint8_t ff_dv_quant_shifts[22][4]

Definition at line 31 of file dvdata.c.

Referenced by dv_guess_qnos(), and ff_dv_init_dynamic_tables().

RL_VLC_ELEM ff_dv_rl_vlc[1184]

Definition at line 52 of file dv.c.

Referenced by dv_decode_ac().