FFmpeg: libavformat/nut.h File Reference

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libavformat

Data Structures | Macros | Enumerations | Functions | Variables

nut.h File Reference

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

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 container0円"

#define MAX_DISTANCE (1024*32-1)

#define NUT_VERSION 3

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

Definition at line 29 of file nut.h.

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

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

Definition at line 30 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 31 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().

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

Definition at line 32 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 33 of file nut.h.

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

#define ID_STRING "nut/multimedia container0円"

Definition at line 35 of file nut.h.

#define MAX_DISTANCE (1024*32-1)

Definition at line 37 of file nut.h.

Referenced by nut_write_header().

#define NUT_VERSION 3

Definition at line 39 of file nut.h.

Referenced by decode_main_header(), and write_mainheader().

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 41 of file nut.h.

Function Documentation

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().

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().

int ff_nut_sp_pos_cmp ( const Syncpoint * a,

const Syncpoint * b

)

Definition at line 207 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 212 of file nut.c.

Referenced by read_seek().

void ff_nut_add_sp ( NUTContext * nut,

int64_t pos,

int64_t back_ptr,

int64_t ts

)

Definition at line 217 of file nut.c.

Referenced by decode_syncpoint(), and nut_write_packet().

void ff_nut_free_sp ( NUTContext * nut )

Definition at line 240 of file nut.c.

Referenced by nut_read_close(), and nut_write_trailer().

Variable Documentation

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().

const AVCodecTag ff_nut_audio_tags[]

Definition at line 157 of file nut.c.

Referenced by decode_stream_header().

const AVCodecTag ff_nut_data_tags[]

Definition at line 37 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 Dispositions ff_nut_dispositions[]

Definition at line 246 of file nut.c.

Referenced by set_disposition_bits(), and write_streaminfo().

const AVMetadataConv ff_nut_metadata_conv[]

Definition at line 256 of file nut.c.

Referenced by nut_read_header(), and write_headers().

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