#include <stdint.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/tree.h"
#include "libavutil/dict.h"
#include "libavutil/avassert.h"
#include "libavutil/time.h"
#include "libavutil/opt.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/mpegaudiodata.h"
#include "nut.h"
#include "internal.h"
#include "avio_internal.h"
#include "riff.h"

Macros
#define	OFFSET(x) offsetof(NUTContext, x)

#define	E AV_OPT_FLAG_ENCODING_PARAM

Functions
static int	find_expected_header (AVCodecParameters *p, int size, int key_frame, uint8_t out[64])

static int	find_header_idx (AVFormatContext s, AVCodecParameters p, int size, int frame_type)

static void	build_elision_headers (AVFormatContext *s)

static void	build_frame_code (AVFormatContext *s)

static int	get_v_length (uint64_t val)
	Get the length in bytes which is needed to store val as v. More...

static void	put_v (AVIOContext *bc, uint64_t val)
	Put val using a variable number of bytes. More...

static void	put_tt (NUTContext nut, AVRational time_base, AVIOContext *bc, uint64_t val)

static void	put_str (AVIOContext bc, const char string)
	Store a string as vb. More...

static void	put_s (AVIOContext *bc, int64_t val)

static void	put_packet (NUTContext nut, AVIOContext bc, AVIOContext *dyn_bc, uint64_t startcode)

static void	write_mainheader (NUTContext nut, AVIOContext bc)

static int	write_streamheader (AVFormatContext avctx, AVIOContext bc, AVStream *st, int i)

static int	add_info (AVIOContext bc, const char type, const char *value)

static int	write_globalinfo (NUTContext nut, AVIOContext bc)

static int	write_streaminfo (NUTContext nut, AVIOContext bc, int stream_id)

static int	write_chapter (NUTContext nut, AVIOContext bc, int id)

static int	write_index (NUTContext nut, AVIOContext bc)

static int	write_headers (AVFormatContext avctx, AVIOContext bc)

static int	nut_write_header (AVFormatContext *s)

static int	get_needed_flags (NUTContext nut, StreamContext nus, FrameCode fc, AVPacket pkt)

static int	find_best_header_idx (NUTContext nut, AVPacket pkt)

static int	write_sm_data (AVFormatContext s, AVIOContext bc, AVPacket *pkt, int is_meta)

static int	nut_write_packet (AVFormatContext s, AVPacket pkt)

static int	nut_write_trailer (AVFormatContext *s)

static void	nut_write_deinit (AVFormatContext *s)

Variables
static const AVOption	options []

class {
class_name = "nutenc"

item_name = av_default_item_name

option = options

version = LIBAVUTIL_VERSION_INT

};

const AVOutputFormat	ff_nut_muxer

Macro Definition Documentation

◆ OFFSET

#define OFFSET ( x ) offsetof(NUTContext, x)

Definition at line 1214 of file nutenc.c.

◆ E

#define E AV_OPT_FLAG_ENCODING_PARAM

Definition at line 1215 of file nutenc.c.

Function Documentation

◆ find_expected_header()

static int find_expected_header	(	AVCodecParameters *	p,
		int	size,
		int	key_frame,
		uint8_t	out[64]
	)

static

Definition at line 38 of file nutenc.c.

Referenced by find_header_idx().

◆ find_header_idx()

static int find_header_idx	(	AVFormatContext *	s,
		AVCodecParameters *	p,
		int	size,
		int	frame_type
	)

static

Definition at line 105 of file nutenc.c.

Referenced by build_frame_code().

◆ build_elision_headers()

static void build_elision_headers ( AVFormatContext * s )

static

Definition at line 122 of file nutenc.c.

Referenced by nut_write_header().

◆ build_frame_code()

static void build_frame_code ( AVFormatContext * s )

static

Definition at line 144 of file nutenc.c.

Referenced by nut_write_header().

◆ get_v_length()

static int get_v_length ( uint64_t val )

static

Get the length in bytes which is needed to store val as v.

Definition at line 283 of file nutenc.c.

Referenced by nut_write_packet(), and put_v().

◆ put_v()

static void put_v	(	AVIOContext *	bc,
		uint64_t	val
	)

static

Put val using a variable number of bytes.

Definition at line 296 of file nutenc.c.

Referenced by nut_write_packet(), put_packet(), put_s(), put_str(), put_tt(), write_chapter(), write_globalinfo(), write_index(), write_mainheader(), write_sm_data(), write_streamheader(), and write_streaminfo().

◆ put_tt()

static void put_tt	(	NUTContext *	nut,
		AVRational *	time_base,
		AVIOContext *	bc,
		uint64_t	val
	)

static

Definition at line 306 of file nutenc.c.

Referenced by nut_write_packet(), write_chapter(), and write_index().

◆ put_str()

static void put_str	(	AVIOContext *	bc,
		const char *	string
	)

static

Store a string as vb.

Definition at line 315 of file nutenc.c.

Referenced by add_info(), and write_sm_data().

◆ put_s()

static void put_s	(	AVIOContext *	bc,
		int64_t	val
	)

static

Definition at line 323 of file nutenc.c.

Referenced by add_info(), write_chapter(), write_mainheader(), and write_sm_data().

◆ put_packet()

static void put_packet	(	NUTContext *	nut,
		AVIOContext *	bc,
		AVIOContext *	dyn_bc,
		uint64_t	startcode
	)

static

Definition at line 328 of file nutenc.c.

Referenced by nut_write_packet(), nut_write_trailer(), and write_headers().

◆ write_mainheader()

static void write_mainheader	(	NUTContext *	nut,
		AVIOContext *	bc
	)

static

Definition at line 349 of file nutenc.c.

Referenced by write_headers().

◆ write_streamheader()

static int write_streamheader	(	AVFormatContext *	avctx,
		AVIOContext *	bc,
		AVStream *	st,
		int	i
	)

static

Definition at line 429 of file nutenc.c.

Referenced by write_headers().

◆ add_info()

static int add_info	(	AVIOContext *	bc,
		const char *	type,
		const char *	value
	)

static

Definition at line 486 of file nutenc.c.

Referenced by write_chapter(), write_globalinfo(), and write_streaminfo().

◆ write_globalinfo()

static int write_globalinfo	(	NUTContext *	nut,
		AVIOContext *	bc
	)

static

Definition at line 494 of file nutenc.c.

Referenced by write_headers().

◆ write_streaminfo()

static int write_streaminfo	(	NUTContext *	nut,
		AVIOContext *	bc,
		int	stream_id
	)

static

Definition at line 522 of file nutenc.c.

Referenced by write_headers().

◆ write_chapter()

static int write_chapter	(	NUTContext *	nut,
		AVIOContext *	bc,
		int	id
	)

static

Definition at line 564 of file nutenc.c.

Referenced by write_headers().

◆ write_index()

static int write_index	(	NUTContext *	nut,
		AVIOContext *	bc
	)

static

Definition at line 592 of file nutenc.c.

Referenced by nut_write_trailer().

◆ write_headers()

static int write_headers	(	AVFormatContext *	avctx,
		AVIOContext *	bc
	)

static

Definition at line 644 of file nutenc.c.

Referenced by nut_write_header(), nut_write_packet(), and nut_write_trailer().

◆ nut_write_header()

static int nut_write_header ( AVFormatContext * s )

static

Definition at line 696 of file nutenc.c.

◆ get_needed_flags()

static int get_needed_flags	(	NUTContext *	nut,
		StreamContext *	nus,
		FrameCode *	fc,
		AVPacket *	pkt
	)

static

Definition at line 782 of file nutenc.c.

Referenced by nut_write_packet().

◆ find_best_header_idx()

static int find_best_header_idx	(	NUTContext *	nut,
		AVPacket *	pkt
	)

static

Definition at line 811 of file nutenc.c.

Referenced by nut_write_packet().

◆ write_sm_data()

static int write_sm_data	(	AVFormatContext *	s,
		AVIOContext *	bc,
		AVPacket *	pkt,
		int	is_meta
	)

static

Definition at line 830 of file nutenc.c.

Referenced by nut_write_packet().

◆ nut_write_packet()

static int nut_write_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)

static

Definition at line 953 of file nutenc.c.

◆ nut_write_trailer()

static int nut_write_trailer ( AVFormatContext * s )

static

Definition at line 1176 of file nutenc.c.

◆ nut_write_deinit()

static void nut_write_deinit ( AVFormatContext * s )

static

Definition at line 1199 of file nutenc.c.

Variable Documentation

◆ options

const AVOption options[]

static

Initial value:

= {
    { "syncpoints",  "NUT syncpoint behaviour",                         OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0},             INT_MIN, INT_MAX, E, "syncpoints" },
    { "default",     "",                                                0,             AV_OPT_TYPE_CONST, {.i64 = 0},             INT_MIN, INT_MAX, E, "syncpoints" },
    { "none",        "Disable syncpoints, low overhead and unseekable", 0,             AV_OPT_TYPE_CONST, {.i64 = NUT_PIPE},      INT_MIN, INT_MAX, E, "syncpoints" },
    { "timestamped", "Extend syncpoints with a wallclock timestamp",    0,             AV_OPT_TYPE_CONST, {.i64 = NUT_BROADCAST}, INT_MIN, INT_MAX, E, "syncpoints" },
    { "write_index", "Write index",                               OFFSET(write_index), AV_OPT_TYPE_BOOL,  {.i64 = 1},                   0,       1, E, },
    { NULL },
}

Definition at line 1216 of file nutenc.c.

◆ class_name

class_name = "nutenc"

private

Definition at line 1226 of file nutenc.c.

◆ item_name

item_name = av_default_item_name

private

Definition at line 1227 of file nutenc.c.

◆ option

option = options

private

Definition at line 1228 of file nutenc.c.

◆ version

version = LIBAVUTIL_VERSION_INT

private

Definition at line 1229 of file nutenc.c.

◆ @279

const { ... }

◆ ff_nut_muxer

const AVOutputFormat ff_nut_muxer

Initial value:

= {
    .name           = "nut",
    .long_name      = NULL_IF_CONFIG_SMALL("NUT"),
    .mime_type      = "video/x-nut",
    .extensions     = "nut",
    .priv_data_size = sizeof(NUTContext),
    .audio_codec    = CONFIG_LIBVORBIS ? AV_CODEC_ID_VORBIS :
                      CONFIG_LIBMP3LAME ? AV_CODEC_ID_MP3 : AV_CODEC_ID_MP2,
    .video_codec    = AV_CODEC_ID_MPEG4,
    .write_header   = nut_write_header,
    .write_packet   = nut_write_packet,
    .write_trailer  = nut_write_trailer,
    .deinit         = nut_write_deinit,
    .flags          = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
    .codec_tag      = ff_nut_codec_tags,
    .priv_class     = &class,
}

Definition at line 1232 of file nutenc.c.

Macros

Functions

Variables

Macro Definition Documentation

◆ OFFSET

◆ E

Function Documentation

◆ find_expected_header()

◆ find_header_idx()

◆ build_elision_headers()

◆ build_frame_code()

◆ get_v_length()

◆ put_v()

◆ put_tt()

◆ put_str()

◆ put_s()

◆ put_packet()

◆ write_mainheader()

◆ write_streamheader()

◆ add_info()

◆ write_globalinfo()

◆ write_streaminfo()

◆ write_chapter()

◆ write_index()

◆ write_headers()

◆ nut_write_header()

◆ get_needed_flags()

◆ find_best_header_idx()

◆ write_sm_data()

◆ nut_write_packet()

◆ nut_write_trailer()

◆ nut_write_deinit()

Variable Documentation

◆ options

◆ class_name

◆ item_name

◆ option

◆ version

◆ @279

◆ ff_nut_muxer