#include "config.h"
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/rational.h"
#include "libavutil/time.h"
#include "libavutil/time_internal.h"
#include "av1.h"
#include "avc.h"
#include "avformat.h"
#include "avio_internal.h"
#include "hlsplaylist.h"
#include "internal.h"
#include "isom.h"
#include "os_support.h"
#include "url.h"
#include "vpcc.h"
#include "dash.h"

Data Structures
struct	Segment

struct	AdaptationSet

struct	OutputStream

struct	DASHContext

struct	codec_string

struct	format_string

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

#define	E AV_OPT_FLAG_ENCODING_PARAM

Enumerations
enum	SegmentType { PALETTE_SEGMENT = 0x14, OBJECT_SEGMENT = 0x15, PRESENTATION_SEGMENT = 0x16, WINDOW_SEGMENT = 0x17, DISPLAY_SEGMENT = 0x80, SEGMENT_TYPE_AUTO = 0, SEGMENT_TYPE_MP4, SEGMENT_TYPE_WEBM, SEGMENT_TYPE_NB, SEGMENT_TYPE_MPEGTS, SEGMENT_TYPE_FMP4 }

Functions
static int	dashenc_io_open (AVFormatContext s, AVIOContext pb, char filename, AVDictionary **options)

static void	dashenc_io_close (AVFormatContext s, AVIOContext pb, char filename)

static const char *	get_format_str (SegmentType segment_type)

static const char *	get_extension_str (SegmentType type, int single_file)

static int	handle_io_open_error (AVFormatContext s, int err, char url)

static SegmentType	select_segment_type (SegmentType segment_type, enum AVCodecID codec_id)

static int	init_segment_types (AVFormatContext *s)

static int	check_file_extension (const char filename, const char extension)

static void	set_vp9_codec_str (AVFormatContext s, AVCodecParameters par, AVRational frame_rate, char str, int size)

static void	set_codec_str (AVFormatContext s, AVCodecParameters par, AVRational frame_rate, char str, int size)

static int	flush_dynbuf (DASHContext c, OutputStream os, int *range_length)

static void	set_http_options (AVDictionary *options, DASHContext c)

static void	get_hls_playlist_name (char playlist_name, int string_size, const char base_url, int id)

static void	get_start_index_number (OutputStream os, DASHContext c, int start_index, int start_number)

static void	write_hls_media_playlist (OutputStream os, AVFormatContext s, int representation_id, int final, char *prefetch_url)

static int	flush_init_segment (AVFormatContext s, OutputStream os)

static void	dash_free (AVFormatContext *s)

static void	output_segment_list (OutputStream os, AVIOContext out, AVFormatContext *s, int representation_id, int final)

static char *	xmlescape (const char *str)

static void	write_time (AVIOContext *out, int64_t time)

static void	format_date_now (char *buf, int size)

static int	write_adaptation_set (AVFormatContext s, AVIOContext out, int as_index, int final)

static int	add_adaptation_set (AVFormatContext s, AdaptationSet *as, enum AVMediaType type)

static int	adaptation_set_add_stream (AVFormatContext *s, int as_idx, int i)

static int	parse_adaptation_sets (AVFormatContext *s)

static int	write_manifest (AVFormatContext *s, int final)

static int	dict_copy_entry (AVDictionary *dst, const AVDictionary src, const char *key)

static int	dash_init (AVFormatContext *s)

static int	dash_write_header (AVFormatContext *s)

static int	add_segment (OutputStream os, const char file, int64_t time, int64_t duration, int64_t start_pos, int64_t range_length, int64_t index_length, int next_exp_index)

static void	write_styp (AVIOContext *pb)

static void	find_index_range (AVFormatContext s, const char full_path, int64_t pos, int *index_length)

static int	update_stream_extradata (AVFormatContext s, OutputStream os, AVPacket pkt, AVRational frame_rate)

static void	dashenc_delete_file (AVFormatContext s, char filename)

static int	dashenc_delete_segment_file (AVFormatContext s, const char file)

static void	dashenc_delete_media_segments (AVFormatContext s, OutputStream os, int remove_count)

static int	dash_flush (AVFormatContext *s, int final, int stream)

static int	dash_write_packet (AVFormatContext s, AVPacket pkt)

static int	dash_write_trailer (AVFormatContext *s)

static int	dash_check_bitstream (struct AVFormatContext s, const AVPacket avpkt)

Variables
static struct codec_string	codecs []

static struct format_string	formats []

static const AVOption	options []

static const AVClass	dash_class

AVOutputFormat	ff_dash_muxer

Macro Definition Documentation

◆ OFFSET

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

Definition at line 1890 of file dashenc.c.

◆ E

#define E AV_OPT_FLAG_ENCODING_PARAM

Definition at line 1891 of file dashenc.c.

Enumeration Type Documentation

◆ SegmentType

enum SegmentType

Enumerator
PALETTE_SEGMENT
OBJECT_SEGMENT
PRESENTATION_SEGMENT
WINDOW_SEGMENT
DISPLAY_SEGMENT
SEGMENT_TYPE_AUTO
SEGMENT_TYPE_MP4
SEGMENT_TYPE_WEBM
SEGMENT_TYPE_NB
SEGMENT_TYPE_MPEGTS
SEGMENT_TYPE_FMP4

Definition at line 53 of file dashenc.c.

Function Documentation

◆ dashenc_io_open()

static int dashenc_io_open	(	AVFormatContext *	s,
		AVIOContext **	pb,
		char *	filename,
		AVDictionary **	options
	)

static

Definition at line 176 of file dashenc.c.

Referenced by dash_write_packet(), dashenc_delete_file(), write_hls_media_playlist(), and write_manifest().

◆ dashenc_io_close()

static void dashenc_io_close	(	AVFormatContext *	s,
		AVIOContext **	pb,
		char *	filename
	)

static

Definition at line 195 of file dashenc.c.

Referenced by dash_flush(), flush_init_segment(), write_hls_media_playlist(), and write_manifest().

◆ get_format_str()

static const char* get_format_str ( SegmentType segment_type )

static

Definition at line 214 of file dashenc.c.

Referenced by init_segment_types().

◆ get_extension_str()

static const char* get_extension_str	(	SegmentType	type,
		int	single_file
	)

static

Definition at line 222 of file dashenc.c.

Referenced by init_segment_types().

◆ handle_io_open_error()

static int handle_io_open_error	(	AVFormatContext *	s,
		int	err,
		char *	url
	)

static

Definition at line 232 of file dashenc.c.

Referenced by dash_write_packet(), write_hls_media_playlist(), and write_manifest().

◆ select_segment_type()

static SegmentType select_segment_type	(	SegmentType	segment_type,
		enum AVCodecID	codec_id
	)

inlinestatic

Definition at line 241 of file dashenc.c.

Referenced by init_segment_types().

◆ init_segment_types()

static int init_segment_types ( AVFormatContext * s )

static

Definition at line 255 of file dashenc.c.

Referenced by dash_init().

◆ check_file_extension()

static int check_file_extension	(	const char *	filename,
		const char *	extension
	)

static

Definition at line 286 of file dashenc.c.

Referenced by dash_init().

◆ set_vp9_codec_str()

static void set_vp9_codec_str	(	AVFormatContext *	s,
		AVCodecParameters *	par,
		AVRational *	frame_rate,
		char *	str,
		int	size
	)

static

Definition at line 296 of file dashenc.c.

Referenced by set_codec_str().

◆ set_codec_str()

static void set_codec_str	(	AVFormatContext *	s,
		AVCodecParameters *	par,
		AVRational *	frame_rate,
		char *	str,
		int	size
	)

static

Definition at line 311 of file dashenc.c.

Referenced by dash_init(), and update_stream_extradata().

◆ flush_dynbuf()

static int flush_dynbuf	(	DASHContext *	c,
		OutputStream *	os,
		int *	range_length
	)

static

Definition at line 407 of file dashenc.c.

Referenced by dash_flush(), and flush_init_segment().

◆ set_http_options()

static void set_http_options	(	AVDictionary **	options,
		DASHContext *	c
	)

static

Definition at line 436 of file dashenc.c.

Referenced by dash_init(), dash_write_packet(), dashenc_delete_file(), write_hls_media_playlist(), and write_manifest().

◆ get_hls_playlist_name()

static void get_hls_playlist_name	(	char *	playlist_name,
		int	string_size,
		const char *	base_url,
		int	id
	)

static

Definition at line 448 of file dashenc.c.

Referenced by dash_write_trailer(), write_hls_media_playlist(), and write_manifest().

◆ get_start_index_number()

static void get_start_index_number	(	OutputStream *	os,
		DASHContext *	c,
		int *	start_index,
		int *	start_number
	)

static

Definition at line 456 of file dashenc.c.

Referenced by dash_flush(), output_segment_list(), and write_hls_media_playlist().

◆ write_hls_media_playlist()

static void write_hls_media_playlist	(	OutputStream *	os,
		AVFormatContext *	s,
		int	representation_id,
		int	final,
		char *	prefetch_url
	)

static

Definition at line 466 of file dashenc.c.

Referenced by dash_write_packet(), and output_segment_list().

◆ flush_init_segment()

static int flush_init_segment	(	AVFormatContext *	s,
		OutputStream *	os
	)

static

Definition at line 547 of file dashenc.c.

Referenced by dash_write_header(), and dash_write_packet().

◆ dash_free()

static void dash_free ( AVFormatContext * s )

static

Definition at line 565 of file dashenc.c.

◆ output_segment_list()

static void output_segment_list	(	OutputStream *	os,
		AVIOContext *	out,
		AVFormatContext *	s,
		int	representation_id,
		int	final
	)

static

Definition at line 603 of file dashenc.c.

Referenced by write_adaptation_set().

◆ xmlescape()

static char* xmlescape ( const char * str )

static

Definition at line 672 of file dashenc.c.

Referenced by write_manifest().

◆ write_time()

static void write_time	(	AVIOContext *	out,
		int64_t	time
	)

static

Definition at line 712 of file dashenc.c.

Referenced by write_manifest().

◆ format_date_now()

static void format_date_now	(	char *	buf,
		int	size
	)

static

Definition at line 728 of file dashenc.c.

Referenced by dash_write_packet(), and write_manifest().

◆ write_adaptation_set()

static int write_adaptation_set	(	AVFormatContext *	s,
		AVIOContext *	out,
		int	as_index,
		int	final
	)

static

Definition at line 747 of file dashenc.c.

Referenced by write_manifest().

◆ add_adaptation_set()

static int add_adaptation_set	(	AVFormatContext *	s,
		AdaptationSet **	as,
		enum AVMediaType	type
	)

static

Definition at line 800 of file dashenc.c.

Referenced by parse_adaptation_sets().

◆ adaptation_set_add_stream()

static int adaptation_set_add_stream	(	AVFormatContext *	s,
		int	as_idx,
		int	i
	)

static

Definition at line 817 of file dashenc.c.

Referenced by parse_adaptation_sets().

◆ parse_adaptation_sets()

static int parse_adaptation_sets ( AVFormatContext * s )

static

Definition at line 835 of file dashenc.c.

Referenced by dash_init().

◆ write_manifest()

static int write_manifest	(	AVFormatContext *	s,
		int	final
	)

static

Definition at line 934 of file dashenc.c.

Referenced by dash_flush().

◆ dict_copy_entry()

static int dict_copy_entry	(	AVDictionary **	dst,
		const AVDictionary *	src,
		const char *	key
	)

static

Definition at line 1112 of file dashenc.c.

Referenced by dash_init().

◆ dash_init()

static int dash_init ( AVFormatContext * s )

static

Definition at line 1120 of file dashenc.c.

◆ dash_write_header()

static int dash_write_header ( AVFormatContext * s )

static

Definition at line 1360 of file dashenc.c.

◆ add_segment()

static int add_segment	(	OutputStream *	os,
		const char *	file,
		int64_t	time,
		int64_t	duration,
		int64_t	start_pos,
		int64_t	range_length,
		int64_t	index_length,
		int	next_exp_index
	)

static

Definition at line 1379 of file dashenc.c.

Referenced by dash_flush().

◆ write_styp()

static void write_styp ( AVIOContext * pb )

static

Definition at line 1419 of file dashenc.c.

Referenced by dash_flush(), and dash_write_packet().

◆ find_index_range()

static void find_index_range	(	AVFormatContext *	s,
		const char *	full_path,
		int64_t	pos,
		int *	index_length
	)

static

Definition at line 1429 of file dashenc.c.

Referenced by dash_flush().

◆ update_stream_extradata()

static int update_stream_extradata	(	AVFormatContext *	s,
		OutputStream *	os,
		AVPacket *	pkt,
		AVRational *	frame_rate
	)

static

Definition at line 1452 of file dashenc.c.

Referenced by dash_write_packet().

◆ dashenc_delete_file()

static void dashenc_delete_file	(	AVFormatContext *	s,
		char *	filename
	)

static

Definition at line 1477 of file dashenc.c.

Referenced by dash_write_trailer(), and dashenc_delete_segment_file().

◆ dashenc_delete_segment_file()

static int dashenc_delete_segment_file	(	AVFormatContext *	s,
		const char *	file
	)

static

Definition at line 1504 of file dashenc.c.

Referenced by dash_write_trailer(), and dashenc_delete_media_segments().

◆ dashenc_delete_media_segments()

static void dashenc_delete_media_segments	(	AVFormatContext *	s,
		OutputStream *	os,
		int	remove_count
	)

inlinestatic

Definition at line 1532 of file dashenc.c.

Referenced by dash_flush(), and dash_write_trailer().

◆ dash_flush()

static int dash_flush	(	AVFormatContext *	s,
		int	final,
		int	stream
	)

static

Definition at line 1545 of file dashenc.c.

Referenced by dash_write_packet(), and dash_write_trailer().

◆ dash_write_packet()

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

static

Definition at line 1679 of file dashenc.c.

◆ dash_write_trailer()

static int dash_write_trailer ( AVFormatContext * s )

static

Definition at line 1825 of file dashenc.c.

◆ dash_check_bitstream()

static int dash_check_bitstream	(	struct AVFormatContext *	s,
		const AVPacket *	avpkt
	)

static

Definition at line 1867 of file dashenc.c.

Variable Documentation

◆ codecs

struct codec_string codecs[]

static

Initial value:

= {
    { AV_CODEC_ID_VP8, "vp8" },
    { AV_CODEC_ID_VP9, "vp9" },
    { AV_CODEC_ID_VORBIS, "vorbis" },
    { AV_CODEC_ID_OPUS, "opus" },
    { AV_CODEC_ID_FLAC, "flac" },
    { 0, NULL }
}

Referenced by ff_hls_write_stream_info(), get_codecs_sorted(), print_codecs(), set_codec_str(), and show_codecs().

◆ formats

struct format_string formats[]

static

Initial value:

= {
    { SEGMENT_TYPE_AUTO, "auto" },
    { SEGMENT_TYPE_MP4, "mp4" },
    { SEGMENT_TYPE_WEBM, "webm" },
    { 0, NULL }
}

◆ options

const AVOption options[]

static

Definition at line 1892 of file dashenc.c.

Referenced by dashenc_io_open(), and set_http_options().

◆ dash_class

const AVClass dash_class

static

Initial value:

= {
    .class_name = "dash muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 1927 of file dashenc.c.

◆ ff_dash_muxer

AVOutputFormat ff_dash_muxer

Initial value:

= {
    .name           = "dash",
    .long_name      = NULL_IF_CONFIG_SMALL("DASH Muxer"),
    .extensions     = "mpd",
    .priv_data_size = sizeof(DASHContext),
    .audio_codec    = AV_CODEC_ID_AAC,
    .video_codec    = AV_CODEC_ID_H264,
    .flags          = AVFMT_GLOBALHEADER | AVFMT_NOFILE | AVFMT_TS_NEGATIVE,
    .init           = dash_init,
    .write_header   = dash_write_header,
    .write_packet   = dash_write_packet,
    .write_trailer  = dash_write_trailer,
    .deinit         = dash_free,
    .check_bitstream = dash_check_bitstream,
    .priv_class     = &dash_class,
}

Definition at line 1934 of file dashenc.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ OFFSET

◆ E

Enumeration Type Documentation

◆ SegmentType

Function Documentation

◆ dashenc_io_open()

◆ dashenc_io_close()

◆ get_format_str()

◆ get_extension_str()

◆ handle_io_open_error()

◆ select_segment_type()

◆ init_segment_types()

◆ check_file_extension()

◆ set_vp9_codec_str()

◆ set_codec_str()

◆ flush_dynbuf()

◆ set_http_options()

◆ get_hls_playlist_name()

◆ get_start_index_number()

◆ write_hls_media_playlist()

◆ flush_init_segment()

◆ dash_free()

◆ output_segment_list()

◆ xmlescape()

◆ write_time()

◆ format_date_now()

◆ write_adaptation_set()

◆ add_adaptation_set()

◆ adaptation_set_add_stream()

◆ parse_adaptation_sets()

◆ write_manifest()

◆ dict_copy_entry()

◆ dash_init()

◆ dash_write_header()

◆ add_segment()

◆ write_styp()

◆ find_index_range()

◆ update_stream_extradata()

◆ dashenc_delete_file()

◆ dashenc_delete_segment_file()

◆ dashenc_delete_media_segments()

◆ dash_flush()

◆ dash_write_packet()

◆ dash_write_trailer()

◆ dash_check_bitstream()

Variable Documentation

◆ codecs

◆ formats

◆ options

◆ dash_class

◆ ff_dash_muxer