nut.h File Reference

#include "avformat.h"
#include "internal.h"
#include "metadata.h"

Include dependency graph for nut.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	Syncpoint
struct	FrameCode
struct	StreamContext
struct	ChapterContext
struct	NUTContext
struct	Dispositions

Macros
#define	MAIN_STARTCODE   (0x7A561F5F04ADULL + (((uint64_t)('N'<<8) + 'M')<<48))
#define	STREAM_STARTCODE   (0x11405BF2F9DBULL + (((uint64_t)('N'<<8) + 'S')<<48))
#define	SYNCPOINT_STARTCODE   (0xE4ADEECA4569ULL + (((uint64_t)('N'<<8) + 'K')<<48))
#define	INDEX_STARTCODE   (0xDD672F23E64EULL + (((uint64_t)('N'<<8) + 'X')<<48))
#define	INFO_STARTCODE   (0xAB68B596BA78ULL + (((uint64_t)('N'<<8) + 'I')<<48))
#define	ID_STRING   "nut/multimedia container\0"
#define	MAX_DISTANCE   (1024*32-1)

Typedefs
typedef struct Syncpoint	Syncpoint
typedef struct FrameCode	FrameCode
typedef struct StreamContext	StreamContext
typedef struct ChapterContext	ChapterContext
typedef struct NUTContext	NUTContext
typedef struct Dispositions	Dispositions

Enumerations
enum	Flag {   FLAG_KEY = 1, FLAG_EOR = 2, FLAG_CODED_PTS = 8, FLAG_STREAM_ID = 16,   FLAG_SIZE_MSB = 32, FLAG_CHECKSUM = 64, FLAG_RESERVED = 128, FLAG_HEADER_IDX =1024,   FLAG_MATCH_TIME =2048, FLAG_CODED =4096, FLAG_INVALID =8192 }

Functions
void	ff_nut_reset_ts (NUTContext *nut, AVRational time_base, int64_t val)
int64_t	ff_lsb2full (StreamContext *stream, int64_t lsb)
int	ff_nut_sp_pos_cmp (const Syncpoint *a, const Syncpoint *b)
int	ff_nut_sp_pts_cmp (const Syncpoint *a, const Syncpoint *b)
void	ff_nut_add_sp (NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
void	ff_nut_free_sp (NUTContext *nut)

Variables
const AVCodecTag	ff_nut_subtitle_tags []
const AVCodecTag	ff_nut_video_tags []
const AVCodecTag	ff_nut_audio_tags []
const AVCodecTag	ff_nut_data_tags []
const AVCodecTag *const	ff_nut_codec_tags []
const Dispositions	ff_nut_dispositions []
const AVMetadataConv	ff_nut_metadata_conv []

Macro Definition Documentation

#define ID_STRING   "nut/multimedia container\0"

Definition at line 38 of file nut.h.

#define INDEX_STARTCODE   (0xDD672F23E64EULL + (((uint64_t)('N'<<8) + 'X')<<48))

Definition at line 35 of file nut.h.

Referenced by find_and_decode_index(), find_any_startcode(), nut_read_packet(), and nut_write_trailer().

#define INFO_STARTCODE   (0xAB68B596BA78ULL + (((uint64_t)('N'<<8) + 'I')<<48))

Definition at line 36 of file nut.h.

Referenced by decode_info_header(), find_any_startcode(), nut_read_header(), nut_read_packet(), and write_headers().

#define MAIN_STARTCODE   (0x7A561F5F04ADULL + (((uint64_t)('N'<<8) + 'M')<<48))

Definition at line 32 of file nut.h.

Referenced by decode_main_header(), find_any_startcode(), nut_probe(), nut_read_header(), nut_read_packet(), and write_headers().

#define MAX_DISTANCE   (1024*32-1)

Definition at line 40 of file nut.h.

Referenced by nut_write_header().

#define STREAM_STARTCODE   (0x11405BF2F9DBULL + (((uint64_t)('N'<<8) + 'S')<<48))

Definition at line 33 of file nut.h.

Referenced by decode_stream_header(), find_any_startcode(), nut_read_header(), nut_read_packet(), and write_headers().

#define SYNCPOINT_STARTCODE   (0xE4ADEECA4569ULL + (((uint64_t)('N'<<8) + 'K')<<48))

Definition at line 34 of file nut.h.

Referenced by decode_syncpoint(), find_any_startcode(), nut_read_header(), nut_read_packet(), nut_read_timestamp(), nut_write_packet(), and read_seek().

Typedef Documentation

typedef struct ChapterContext ChapterContext

typedef struct Dispositions Dispositions

typedef struct FrameCode FrameCode

typedef struct NUTContext NUTContext

typedef struct StreamContext StreamContext

typedef struct Syncpoint Syncpoint

Enumeration Type Documentation

enum Flag

Enumerator
FLAG_KEY	if set, frame is keyframe
FLAG_EOR	if set, stream has no relevance on presentation. (EOR)
FLAG_CODED_PTS	if set, coded_pts is in the frame header
FLAG_STREAM_ID	if set, stream_id is coded in the frame header
FLAG_SIZE_MSB	if set, data_size_msb is at frame header, otherwise data_size_msb is 0
FLAG_CHECKSUM	if set, the frame header contains a checksum
FLAG_RESERVED	if set, reserved_count is coded in the frame header
FLAG_HEADER_IDX	If set, header_idx is coded in the frame header.
FLAG_MATCH_TIME	If set, match_time_delta is coded in the frame header.
FLAG_CODED	if set, coded_flags are stored in the frame header
FLAG_INVALID	if set, frame_code is invalid

Definition at line 42 of file nut.h.

Function Documentation

int64_t ff_lsb2full	(	StreamContext *	stream,
		int64_t	lsb
	)

Definition at line 200 of file nut.c.

Referenced by decode_frame_header(), and nut_write_packet().

void ff_nut_add_sp	(	NUTContext *	nut,
		int64_t	pos,
		int64_t	back_ptr,
		int64_t	ts
	)

Definition at line 214 of file nut.c.

Referenced by decode_syncpoint(), and nut_write_packet().

void ff_nut_free_sp

(

NUTContext *

nut

)

Definition at line 236 of file nut.c.

Referenced by nut_read_close(), and nut_write_trailer().

void ff_nut_reset_ts	(	NUTContext *	nut,
		AVRational	time_base,
		int64_t	val
	)

Definition at line 189 of file nut.c.

Referenced by decode_syncpoint(), and nut_write_packet().

int ff_nut_sp_pos_cmp	(	const Syncpoint *	a,
		const Syncpoint *	b
	)

Definition at line 206 of file nut.c.

Referenced by ff_nut_add_sp(), nut_write_packet(), read_seek(), and write_index().

int ff_nut_sp_pts_cmp	(	const Syncpoint *	a,
		const Syncpoint *	b
	)

Definition at line 210 of file nut.c.

Referenced by read_seek().

Variable Documentation

const AVCodecTag ff_nut_audio_tags[]

Definition at line 157 of file nut.c.

Referenced by decode_stream_header().

const AVCodecTag* const ff_nut_codec_tags[]

Definition at line 184 of file nut.c.

const AVCodecTag ff_nut_data_tags[]

Definition at line 37 of file nut.c.

Referenced by decode_stream_header().

const Dispositions ff_nut_dispositions[]

Definition at line 242 of file nut.c.

Referenced by set_disposition_bits(), and write_streaminfo().

const AVMetadataConv ff_nut_metadata_conv[]

Definition at line 252 of file nut.c.

Referenced by nut_read_header(), and write_headers().

const AVCodecTag ff_nut_subtitle_tags[]

Definition at line 28 of file nut.c.

Referenced by decode_stream_header().

const AVCodecTag ff_nut_video_tags[]

Definition at line 42 of file nut.c.

Referenced by decode_stream_header().