libavformat/nut.h File Reference

#include "avformat.h"
#include "riff.h"
#include "metadata.h"

Go to the source code of this file.

Data Structures
struct	Syncpoint
struct	FrameCode
struct	StreamContext
struct	ChapterContext
struct	NUTContext
struct	Dispositions
Defines
#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)
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 Dispositions	ff_nut_dispositions []
const AVMetadataConv	ff_nut_metadata_conv []

---

Define 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().

---

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 126 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 140 of file nut.c.

Referenced by decode_syncpoint(), and nut_write_packet().

void ff_nut_free_sp

(

NUTContext *

nut

)

Definition at line 162 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 115 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 132 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 136 of file nut.c.

Referenced by read_seek().

---

Variable Documentation

const Dispositions ff_nut_dispositions[]

Definition at line 168 of file nut.c.

Referenced by set_disposition_bits(), and write_streaminfo().

const AVMetadataConv ff_nut_metadata_conv[]

Definition at line 178 of file nut.c.

Referenced by nut_read_header(), and write_headers().

const AVCodecTag ff_nut_subtitle_tags[]

Definition at line 27 of file nut.c.

Referenced by decode_stream_header().

const AVCodecTag ff_nut_video_tags[]

Definition at line 36 of file nut.c.

Referenced by decode_stream_header().