matroskaenc.c File Reference

#include <stdint.h>
#include "config_components.h"
#include "av1.h"
#include "avc.h"
#include "hevc.h"
#include "avformat.h"
#include "avio_internal.h"
#include "avlanguage.h"
#include "dovi_isom.h"
#include "flacenc.h"
#include "internal.h"
#include "isom.h"
#include "matroska.h"
#include "mux.h"
#include "riff.h"
#include "version.h"
#include "vorbiscomment.h"
#include "wv.h"
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/crc.h"
#include "libavutil/dict.h"
#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/lfg.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/random_seed.h"
#include "libavutil/rational.h"
#include "libavutil/samplefmt.h"
#include "libavutil/stereo3d.h"
#include "libavcodec/av1.h"
#include "libavcodec/codec_desc.h"
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"

Go to the source code of this file.

Data Structures
struct	ebml_master
struct	ebml_stored_master
struct	BlockContext
struct	EbmlMaster
struct	EbmlElement
struct	EbmlWriter
struct	mkv_seekhead_entry
struct	mkv_seekhead
struct	mkv_cuepoint
struct	mkv_cues
struct	mkv_track
struct	MatroskaMuxContext

Macros
#define	MAX_SEEKHEAD_ENTRIES   7
#define	MAX_EBML_LENGTH   ((1ULL << 56) - 2)
#define	MAX_SUPPORTED_EBML_LENGTH   FFMIN(MAX_EBML_LENGTH, INT_MAX)
#define	MODE_MATROSKAv2   0x01
#define	MODE_WEBM   0x02
#define	IS_WEBM(mkv)
#define	IS_SEEKABLE(pb, mkv)
#define	EBML_WRITER(max_nb_elems)
#define	MAX_SEEKENTRY_SIZE   21
	2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit offset, 4 bytes for target EBML ID More...
#define	MAX_CUETRACKPOS_SIZE   40
	4 * (1-byte EBML ID, 1-byte EBML size, 8-byte uint max) More...
#define	DURATION_SIMPLETAG_SIZE   (2 + 1 + (2 + 1 + 8) + 23)
	2 + 1 Simpletag header, 2 + 1 + 8 Name "DURATION", 23B for TagString More...
#define	OPUS_SEEK_PREROLL   80000000
	Seek preroll value for opus. More...
#define	MAX_VIDEO_COLOR_ELEMS   20
#define	MAX_VIDEO_PROJECTION_ELEMS   6
#define	MAX_FIELD_ORDER_ELEMS   2
#define	MAX_STEREO_MODE_ELEMS   1
#define	CASE(type, variable)
#define	OFFSET(x)   offsetof(MatroskaMuxContext, x)
#define	FLAGS   AV_OPT_FLAG_ENCODING_PARAM

Enumerations
enum	{ DEFAULT_MODE_INFER, DEFAULT_MODE_INFER_NO_SUBS, DEFAULT_MODE_PASSTHROUGH }
enum	EbmlType {   EBML_NONE, EBML_UINT, EBML_SINT, EBML_FLOAT,   EBML_STR, EBML_UTF8, EBML_BIN, EBML_NEST,   EBML_LEVEL1, EBML_STOP, EBML_TYPE_COUNT, EBML_UINT,   EBML_SINT, EBML_FLOAT, EBML_UID, EBML_STR,   EBML_UTF8 = EBML_STR, EBML_BIN, EBML_BLOCK, EBML_MASTER }

Functions
static int	ebml_id_size (uint32_t id)
static void	put_ebml_id (AVIOContext *pb, uint32_t id)
static void	put_ebml_size_unknown (AVIOContext *pb, int bytes)
	Write an EBML size meaning "unknown size". More...
static int	ebml_num_size (uint64_t num)
	Returns how many bytes are needed to represent a number as EBML variable length integer. More...
static int	ebml_length_size (uint64_t length)
	Calculate how many bytes are needed to represent the length field of an EBML element whose payload has a given length. More...
static void	put_ebml_num (AVIOContext *pb, uint64_t num, int bytes)
	Write a number as EBML variable length integer on bytes bytes. More...
static void	put_ebml_length (AVIOContext *pb, uint64_t length, int bytes)
	Write a length as EBML variable length integer. More...
static void	put_ebml_uid (AVIOContext *pb, uint32_t elementid, uint64_t uid)
	Write a (random) UID with fixed size to make the output more deterministic. More...
static void	put_ebml_uint (AVIOContext *pb, uint32_t elementid, uint64_t val)
static void	put_ebml_float (AVIOContext *pb, uint32_t elementid, double val)
static void	put_ebml_binary (AVIOContext *pb, uint32_t elementid, const void *buf, int size)
static void	put_ebml_string (AVIOContext *pb, uint32_t elementid, const char *str)
static void	put_ebml_void (AVIOContext *pb, int size)
	Write a void element of a given size. More...
static ebml_master	start_ebml_master (AVIOContext *pb, uint32_t elementid, uint64_t expectedsize)
static void	end_ebml_master (AVIOContext *pb, ebml_master master)
static EbmlElement *	ebml_writer_add (EbmlWriter *writer, uint32_t id, EbmlType type)
static void	ebml_writer_open_master (EbmlWriter *writer, uint32_t id)
static void	ebml_writer_close_master (EbmlWriter *writer)
static void	ebml_writer_close_or_discard_master (EbmlWriter *writer)
static void	ebml_writer_add_string (EbmlWriter *writer, uint32_t id, const char *str)
static void	ebml_writer_add_bin (EbmlWriter *writer, uint32_t id, const uint8_t *data, size_t size)
static void	ebml_writer_add_float (EbmlWriter *writer, uint32_t id, double val)
static void	ebml_writer_add_uid (EbmlWriter *writer, uint32_t id, uint64_t val)
static void	ebml_writer_add_uint (EbmlWriter *writer, uint32_t id, uint64_t val)
static void	ebml_writer_add_sint (EbmlWriter *writer, uint32_t id, int64_t val)
static void	ebml_writer_add_block (EbmlWriter *writer, MatroskaMuxContext *mkv)
static int	ebml_writer_str_len (EbmlElement *elem)
static av_const int	uint_size (uint64_t val)
static int	ebml_writer_uint_len (EbmlElement *elem)
static av_const int	sint_size (int64_t val)
static int	ebml_writer_sint_len (EbmlElement *elem)
static int	ebml_writer_elem_len (EbmlWriter *writer, EbmlElement *elem, int remaining_elems)
static int	ebml_writer_master_len (EbmlWriter *writer, EbmlElement *elem, int remaining_elems)
static int	ebml_writer_block_len (EbmlElement *elem)
static void	ebml_writer_write_block (const EbmlElement *elem, AVIOContext *pb)
static int	ebml_writer_elem_write (const EbmlElement *elem, AVIOContext *pb)
static int	ebml_writer_write (EbmlWriter *writer, AVIOContext *pb)
static void	mkv_add_seekhead_entry (MatroskaMuxContext *mkv, uint32_t elementid, uint64_t filepos)
static int	start_ebml_master_crc32 (AVIOContext **dyn_cp, MatroskaMuxContext *mkv)
static int	end_ebml_master_crc32 (AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv, uint32_t id, int length_size, int keep_buffer, int add_seekentry)
static int	end_ebml_master_crc32_tentatively (AVIOContext *pb, ebml_stored_master *elem, MatroskaMuxContext *mkv, uint32_t id)
	Output EBML master. More...
static void	put_xiph_size (AVIOContext *pb, int size)
static void	mkv_deinit (AVFormatContext *s)
	Free the members allocated in the mux context. More...
static void	mkv_start_seekhead (MatroskaMuxContext *mkv, AVIOContext *pb)
	Initialize the SeekHead element to be ready to index level 1 Matroska elements. More...
static int	mkv_write_seekhead (AVIOContext *pb, MatroskaMuxContext *mkv, int error_on_seek_failure, int64_t destpos)
	Write the SeekHead to the file at the location reserved for it and seek to destpos afterwards. More...
static int	mkv_add_cuepoint (MatroskaMuxContext *mkv, int stream, int64_t ts, int64_t cluster_pos, int64_t relative_pos, int64_t duration)
static int	mkv_assemble_cues (AVStream **streams, AVIOContext *dyn_cp, AVIOContext *cuepoint, const mkv_cues *cues, mkv_track *tracks, int num_tracks, uint64_t offset)
static int	put_xiph_codecpriv (AVFormatContext *s, AVIOContext *pb, const AVCodecParameters *par, const uint8_t *extradata, int extradata_size)
static int	mkv_assemble_native_codecprivate (AVFormatContext *s, AVIOContext *dyn_cp, const AVCodecParameters *par, const uint8_t *extradata, int extradata_size, unsigned *size_to_reserve)
static int	mkv_assemble_codecprivate (AVFormatContext *s, AVIOContext *dyn_cp, AVCodecParameters *par, const uint8_t *extradata, int extradata_size, int native_id, int qt_id, uint8_t **codecpriv, int *codecpriv_size, unsigned *max_payload_size)
static void	mkv_put_codecprivate (AVIOContext *pb, unsigned max_payload_size, const uint8_t *codecpriv, unsigned codecpriv_size)
static int	mkv_update_codecprivate (AVFormatContext *s, MatroskaMuxContext *mkv, uint8_t *side_data, int side_data_size, AVCodecParameters *par, AVIOContext *pb, mkv_track *track, unsigned alternative_size)
static void	mkv_write_video_color (EbmlWriter *writer, const AVStream *st, const AVCodecParameters *par)
static void	mkv_write_video_projection (AVFormatContext *s, EbmlWriter *writer, const AVStream *st, uint8_t private[])
static void	mkv_write_field_order (EbmlWriter *writer, int is_webm, enum AVFieldOrder field_order)
static int	mkv_write_stereo_mode (AVFormatContext *s, EbmlWriter *writer, AVStream *st, int is_webm, int *h_width, int *h_height)
static void	mkv_write_dovi (AVFormatContext *s, AVIOContext *pb, AVStream *st)
static int	mkv_write_track_video (AVFormatContext *s, MatroskaMuxContext *mkv, AVStream *st, const AVCodecParameters *par, AVIOContext *pb)
static int	mkv_write_track (AVFormatContext *s, MatroskaMuxContext *mkv, AVStream *st, mkv_track *track, AVIOContext *pb, int is_default)
static int	mkv_write_tracks (AVFormatContext *s)
static int	mkv_write_simpletag (AVIOContext *pb, const AVDictionaryEntry *t)
static void	mkv_write_tag_targets (MatroskaMuxContext *mkv, AVIOContext *pb, uint32_t elementid, uint64_t uid)
static int	mkv_check_tag_name (const char *name, uint32_t elementid)
static int	mkv_write_tag (MatroskaMuxContext *mkv, const AVDictionary *m, AVIOContext **pb, unsigned reserved_size, uint32_t elementid, uint64_t uid)
static int	mkv_write_tags (AVFormatContext *s)
static int	mkv_new_chapter_ids_needed (const AVFormatContext *s)
static int	mkv_write_chapters (AVFormatContext *s)
static const char *	get_mimetype (const AVStream *st)
static int	mkv_write_attachments (AVFormatContext *s)
static int64_t	get_metadata_duration (AVFormatContext *s)
static void	ebml_write_header (AVIOContext *pb, const char *doctype, int version)
static int	mkv_write_info (AVFormatContext *s)
static int	mkv_write_header (AVFormatContext *s)
static int	mkv_reformat_av1 (MatroskaMuxContext *mkv, AVIOContext *pb, const AVPacket *pkt, int *size)
static int	webm_reformat_vtt (MatroskaMuxContext *mkv, AVIOContext *pb, const AVPacket *pkt, int *size)
static int	mkv_write_block (void *logctx, MatroskaMuxContext *mkv, AVIOContext *pb, const AVCodecParameters *par, mkv_track *track, const AVPacket *pkt, int keyframe, int64_t ts, uint64_t duration, int force_blockgroup, int64_t relative_packet_pos)
static int	mkv_end_cluster (AVFormatContext *s)
static int	mkv_check_new_extra_data (AVFormatContext *s, const AVPacket *pkt)
static int	mkv_write_packet_internal (AVFormatContext *s, const AVPacket *pkt)
static int	mkv_write_packet (AVFormatContext *s, const AVPacket *pkt)
static int	mkv_write_flush_packet (AVFormatContext *s, AVPacket *pkt)
static int	mkv_write_trailer (AVFormatContext *s)
static uint64_t	mkv_get_uid (const mkv_track *tracks, int i, AVLFG *c)
static int	mkv_init (struct AVFormatContext *s)
static int	mkv_check_bitstream (AVFormatContext *s, AVStream *st, const AVPacket *pkt)

Variables
static const AVCodecTag	additional_audio_tags []
static const AVCodecTag	additional_video_tags []
static const AVCodecTag	additional_subtitle_tags []
static const AVOption	options []
static const AVClass	matroska_webm_class

Macro Definition Documentation

MAX_SEEKHEAD_ENTRIES

#define MAX_SEEKHEAD_ENTRIES   7

Definition at line 67 of file matroskaenc.c.

MAX_EBML_LENGTH

#define MAX_EBML_LENGTH   ((1ULL << 56) - 2)

Definition at line 70 of file matroskaenc.c.

MAX_SUPPORTED_EBML_LENGTH

#define MAX_SUPPORTED_EBML_LENGTH   FFMIN(MAX_EBML_LENGTH, INT_MAX)

Definition at line 73 of file matroskaenc.c.

MODE_MATROSKAv2

#define MODE_MATROSKAv2   0x01

Definition at line 75 of file matroskaenc.c.

MODE_WEBM

#define MODE_WEBM   0x02

Definition at line 76 of file matroskaenc.c.

IS_WEBM

#define IS_WEBM

(

mkv

)

Value:

                      (CONFIG_WEBM_MUXER && CONFIG_MATROSKA_MUXER ? \
                      ((mkv)->mode == MODE_WEBM) : CONFIG_WEBM_MUXER)

Definition at line 78 of file matroskaenc.c.

IS_SEEKABLE

#define IS_SEEKABLE	(		pb,
			mkv
	)

Value:

                              (((pb)->seekable & AVIO_SEEKABLE_NORMAL) && \
                              !(mkv)->is_live)

Definition at line 80 of file matroskaenc.c.

EBML_WRITER

#define EBML_WRITER

(

max_nb_elems

)

Value:

     EbmlElement elements[max_nb_elems]; \
     EbmlWriter writer = (EbmlWriter){ .elements = elements, \
                                       .current_master_element = -1 }

Definition at line 146 of file matroskaenc.c.

MAX_SEEKENTRY_SIZE

#define MAX_SEEKENTRY_SIZE   21

2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit offset, 4 bytes for target EBML ID

Definition at line 257 of file matroskaenc.c.

MAX_CUETRACKPOS_SIZE

#define MAX_CUETRACKPOS_SIZE   40

4 * (1-byte EBML ID, 1-byte EBML size, 8-byte uint max)

Definition at line 260 of file matroskaenc.c.

DURATION_SIMPLETAG_SIZE

#define DURATION_SIMPLETAG_SIZE   (2 + 1 + (2 + 1 + 8) + 23)

2 + 1 Simpletag header, 2 + 1 + 8 Name "DURATION", 23B for TagString

Definition at line 263 of file matroskaenc.c.

OPUS_SEEK_PREROLL

#define OPUS_SEEK_PREROLL   80000000

Seek preroll value for opus.

Definition at line 266 of file matroskaenc.c.

MAX_VIDEO_COLOR_ELEMS

#define MAX_VIDEO_COLOR_ELEMS   20

Definition at line 1296 of file matroskaenc.c.

MAX_VIDEO_PROJECTION_ELEMS

#define MAX_VIDEO_PROJECTION_ELEMS   6

Definition at line 1379 of file matroskaenc.c.

MAX_FIELD_ORDER_ELEMS

#define MAX_FIELD_ORDER_ELEMS   2

Definition at line 1445 of file matroskaenc.c.

MAX_STEREO_MODE_ELEMS

#define MAX_STEREO_MODE_ELEMS   1

Definition at line 1485 of file matroskaenc.c.

CASE

#define CASE	(		type,
			variable
	)

Value:

            case AVMEDIA_TYPE_ ## type:                       \
                variable ## _idx = i;                         \
                if (st->disposition & AV_DISPOSITION_DEFAULT) \
                    variable ## _default_idx = i;             \
                break;

OFFSET

#define OFFSET

(

x

)

offsetof(MatroskaMuxContext, x)

Definition at line 3280 of file matroskaenc.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 3281 of file matroskaenc.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
DEFAULT_MODE_INFER
DEFAULT_MODE_INFER_NO_SUBS
DEFAULT_MODE_PASSTHROUGH

Definition at line 83 of file matroskaenc.c.

EbmlType

enum EbmlType

Enumerator
EBML_NONE
EBML_UINT
EBML_SINT
EBML_FLOAT
EBML_STR
EBML_UTF8
EBML_BIN
EBML_NEST
EBML_LEVEL1
EBML_STOP
EBML_TYPE_COUNT
EBML_UINT
EBML_SINT
EBML_FLOAT
EBML_UID
EBML_STR
EBML_UTF8
EBML_BIN
EBML_BLOCK	pseudo-type for writing (Simple)Blocks
EBML_MASTER

Definition at line 99 of file matroskaenc.c.

Function Documentation

ebml_id_size()

static int ebml_id_size ( uint32_t  id )

static

Definition at line 268 of file matroskaenc.c.

Referenced by ebml_writer_master_len(), mkv_write_seekhead(), and put_ebml_id().

put_ebml_id()

static void put_ebml_id ( AVIOContext *  pb, uint32_t  id  )

static

Definition at line 273 of file matroskaenc.c.

Referenced by ebml_writer_elem_write(), end_ebml_master_crc32(), end_ebml_master_crc32_tentatively(), mkv_put_codecprivate(), mkv_write_header(), mkv_write_seekhead(), put_ebml_binary(), put_ebml_float(), put_ebml_uid(), put_ebml_uint(), put_ebml_void(), and start_ebml_master().

put_ebml_size_unknown()

static void put_ebml_size_unknown ( AVIOContext *  pb, int  bytes  )

static

Write an EBML size meaning "unknown size".

Parameters

bytes

The number of bytes the size should occupy (maximum: 8).

Definition at line 285 of file matroskaenc.c.

Referenced by mkv_write_header(), and start_ebml_master().

ebml_num_size()

static int ebml_num_size ( uint64_t  num )

static

Returns how many bytes are needed to represent a number as EBML variable length integer.

Definition at line 298 of file matroskaenc.c.

Referenced by ebml_length_size(), and mkv_init().

ebml_length_size()

static int ebml_length_size ( uint64_t  length )

static

Calculate how many bytes are needed to represent the length field of an EBML element whose payload has a given length.

Definition at line 311 of file matroskaenc.c.

Referenced by ebml_writer_elem_len(), mkv_put_codecprivate(), mkv_write_trailer(), put_ebml_length(), and start_ebml_master().

put_ebml_num()

static void put_ebml_num ( AVIOContext *  pb, uint64_t  num, int  bytes  )

static

Write a number as EBML variable length integer on bytes bytes.

bytes is taken literally without checking.

Definition at line 320 of file matroskaenc.c.

Referenced by ebml_writer_elem_write(), ebml_writer_write_block(), and put_ebml_length().

put_ebml_length()

static void put_ebml_length ( AVIOContext *  pb, uint64_t  length, int  bytes  )

static

Write a length as EBML variable length integer.

Parameters

bytes

The number of bytes that need to be used to write the number. If zero, the minimal number of bytes will be used.

Definition at line 333 of file matroskaenc.c.

Referenced by end_ebml_master(), end_ebml_master_crc32(), end_ebml_master_crc32_tentatively(), mkv_put_codecprivate(), mkv_write_seekhead(), mkv_write_trailer(), put_ebml_binary(), put_ebml_float(), put_ebml_uid(), put_ebml_uint(), and put_ebml_void().

put_ebml_uid()

static void put_ebml_uid ( AVIOContext *  pb, uint32_t  elementid, uint64_t  uid  )

static

Write a (random) UID with fixed size to make the output more deterministic.

Definition at line 351 of file matroskaenc.c.

Referenced by mkv_write_tag_targets(), and mkv_write_track().

put_ebml_uint()

static void put_ebml_uint ( AVIOContext *  pb, uint32_t  elementid, uint64_t  val  )

static

Definition at line 358 of file matroskaenc.c.

Referenced by mkv_assemble_cues(), mkv_write_chapters(), mkv_write_dovi(), mkv_write_info(), mkv_write_packet_internal(), mkv_write_seekhead(), and mkv_write_track().

put_ebml_float()

static void put_ebml_float ( AVIOContext *  pb, uint32_t  elementid, double  val  )

static

Definition at line 371 of file matroskaenc.c.

Referenced by mkv_check_new_extra_data(), mkv_write_info(), mkv_write_track(), and mkv_write_trailer().

put_ebml_binary()

static void put_ebml_binary ( AVIOContext *  pb, uint32_t  elementid, const void *  buf, int  size  )

static

Definition at line 378 of file matroskaenc.c.

Referenced by end_ebml_master_crc32(), mkv_assemble_cues(), mkv_write_dovi(), mkv_write_info(), mkv_write_tag(), mkv_write_trailer(), and put_ebml_string().

put_ebml_string()

static void put_ebml_string ( AVIOContext *  pb, uint32_t  elementid, const char *  str  )

static

Definition at line 386 of file matroskaenc.c.

Referenced by mkv_write_dovi(), mkv_write_info(), mkv_write_track(), and mkv_write_trailer().

put_ebml_void()

static void put_ebml_void ( AVIOContext *  pb, int  size  )

static

Write a void element of a given size.

Useful for reserving space in the file to be written to later.

Parameters

size	The number of bytes to reserve, which must be at least 2.

Definition at line 398 of file matroskaenc.c.

Referenced by mkv_put_codecprivate(), mkv_start_seekhead(), mkv_write_header(), mkv_write_info(), mkv_write_seekhead(), mkv_write_tag(), mkv_write_trailer(), and start_ebml_master_crc32().

start_ebml_master()

static ebml_master start_ebml_master ( AVIOContext *  pb, uint32_t  elementid, uint64_t  expectedsize  )

static

Definition at line 416 of file matroskaenc.c.

Referenced by mkv_assemble_cues(), mkv_write_chapters(), mkv_write_dovi(), mkv_write_seekhead(), mkv_write_tag_targets(), mkv_write_track(), and mkv_write_trailer().

end_ebml_master()

static void end_ebml_master ( AVIOContext *  pb, ebml_master  master  )

static

Definition at line 426 of file matroskaenc.c.

Referenced by mkv_assemble_cues(), mkv_write_chapters(), mkv_write_dovi(), mkv_write_seekhead(), mkv_write_tag_targets(), mkv_write_track(), and mkv_write_trailer().

ebml_writer_add()

static EbmlElement* ebml_writer_add ( EbmlWriter *  writer, uint32_t  id, EbmlType  type  )

static

Definition at line 436 of file matroskaenc.c.

Referenced by ebml_writer_add_bin(), ebml_writer_add_block(), ebml_writer_add_float(), ebml_writer_add_sint(), ebml_writer_add_string(), ebml_writer_add_uid(), ebml_writer_add_uint(), and ebml_writer_open_master().

ebml_writer_open_master()

static void ebml_writer_open_master ( EbmlWriter *  writer, uint32_t  id  )

static

Definition at line 444 of file matroskaenc.c.

Referenced by ebml_write_header(), mkv_write_attachments(), mkv_write_block(), mkv_write_chapters(), mkv_write_simpletag(), mkv_write_track_video(), mkv_write_video_color(), and mkv_write_video_projection().

ebml_writer_close_master()

static void ebml_writer_close_master ( EbmlWriter *  writer )

static

Definition at line 455 of file matroskaenc.c.

Referenced by ebml_writer_close_or_discard_master(), mkv_write_block(), and mkv_write_video_projection().

ebml_writer_close_or_discard_master()

static void ebml_writer_close_or_discard_master ( EbmlWriter *  writer )

static

Definition at line 469 of file matroskaenc.c.

Referenced by mkv_write_video_color().

ebml_writer_add_string()

static void ebml_writer_add_string ( EbmlWriter *  writer, uint32_t  id, const char *  str  )

static

Definition at line 487 of file matroskaenc.c.

Referenced by ebml_write_header(), mkv_write_attachments(), mkv_write_chapters(), and mkv_write_simpletag().

ebml_writer_add_bin()

static void ebml_writer_add_bin ( EbmlWriter *  writer, uint32_t  id, const uint8_t *  data, size_t  size  )

static

Definition at line 495 of file matroskaenc.c.

Referenced by mkv_write_attachments(), mkv_write_block(), mkv_write_track_video(), and mkv_write_video_projection().

ebml_writer_add_float()

static void ebml_writer_add_float ( EbmlWriter *  writer, uint32_t  id, double  val  )

static

Definition at line 507 of file matroskaenc.c.

Referenced by mkv_write_video_color(), and mkv_write_video_projection().

ebml_writer_add_uid()

static void ebml_writer_add_uid ( EbmlWriter *  writer, uint32_t  id, uint64_t  val  )

static

Definition at line 515 of file matroskaenc.c.

Referenced by mkv_write_attachments().

ebml_writer_add_uint()

static void ebml_writer_add_uint ( EbmlWriter *  writer, uint32_t  id, uint64_t  val  )

static

Definition at line 522 of file matroskaenc.c.

Referenced by ebml_write_header(), mkv_write_block(), mkv_write_chapters(), mkv_write_field_order(), mkv_write_stereo_mode(), mkv_write_track_video(), mkv_write_video_color(), and mkv_write_video_projection().

ebml_writer_add_sint()

static void ebml_writer_add_sint ( EbmlWriter *  writer, uint32_t  id, int64_t  val  )

static

Definition at line 529 of file matroskaenc.c.

Referenced by mkv_write_block().

ebml_writer_add_block()

static void ebml_writer_add_block ( EbmlWriter *  writer, MatroskaMuxContext *  mkv  )

static

Definition at line 536 of file matroskaenc.c.

Referenced by mkv_write_block().

ebml_writer_str_len()

static int ebml_writer_str_len ( EbmlElement *  elem )

static

Definition at line 542 of file matroskaenc.c.

Referenced by ebml_writer_elem_len().

uint_size()

static av_const int uint_size ( uint64_t  val )

static

Definition at line 552 of file matroskaenc.c.

Referenced by ebml_writer_uint_len(), and sint_size().

ebml_writer_uint_len()

static int ebml_writer_uint_len ( EbmlElement *  elem )

static

Definition at line 561 of file matroskaenc.c.

Referenced by ebml_writer_elem_len().

sint_size()

static av_const int sint_size ( int64_t  val )

static

Definition at line 567 of file matroskaenc.c.

Referenced by ebml_writer_sint_len().

ebml_writer_sint_len()

static int ebml_writer_sint_len ( EbmlElement *  elem )

static

Definition at line 573 of file matroskaenc.c.

Referenced by ebml_writer_elem_len().

ebml_writer_elem_len()

static int ebml_writer_elem_len ( EbmlWriter *  writer, EbmlElement *  elem, int  remaining_elems  )

static

Definition at line 654 of file matroskaenc.c.

Referenced by ebml_writer_master_len(), and ebml_writer_write().

ebml_writer_master_len()

static int ebml_writer_master_len ( EbmlWriter *  writer, EbmlElement *  elem, int  remaining_elems  )

static

Definition at line 582 of file matroskaenc.c.

Referenced by ebml_writer_elem_len().

ebml_writer_block_len()

static int ebml_writer_block_len ( EbmlElement *  elem )

static

Definition at line 608 of file matroskaenc.c.

Referenced by ebml_writer_elem_len().

ebml_writer_write_block()

static void ebml_writer_write_block ( const EbmlElement *  elem, AVIOContext *  pb  )

static

Definition at line 633 of file matroskaenc.c.

Referenced by ebml_writer_elem_write().

ebml_writer_elem_write()

static int ebml_writer_elem_write ( const EbmlElement *  elem, AVIOContext *  pb  )

static

Definition at line 688 of file matroskaenc.c.

Referenced by ebml_writer_write().

ebml_writer_write()

static int ebml_writer_write ( EbmlWriter *  writer, AVIOContext *  pb  )

static

Definition at line 731 of file matroskaenc.c.

Referenced by ebml_write_header(), mkv_write_attachments(), mkv_write_block(), mkv_write_chapters(), mkv_write_simpletag(), and mkv_write_track_video().

mkv_add_seekhead_entry()

static void mkv_add_seekhead_entry ( MatroskaMuxContext *  mkv, uint32_t  elementid, uint64_t  filepos  )

static

Definition at line 741 of file matroskaenc.c.

Referenced by end_ebml_master_crc32(), and end_ebml_master_crc32_tentatively().

start_ebml_master_crc32()

static int start_ebml_master_crc32 ( AVIOContext **  dyn_cp, MatroskaMuxContext *  mkv  )

static

Definition at line 752 of file matroskaenc.c.

Referenced by mkv_write_attachments(), mkv_write_chapters(), mkv_write_info(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_tag(), mkv_write_tracks(), and mkv_write_trailer().

end_ebml_master_crc32()

static int end_ebml_master_crc32 ( AVIOContext *  pb, AVIOContext **  dyn_cp, MatroskaMuxContext *  mkv, uint32_t  id, int  length_size, int  keep_buffer, int  add_seekentry  )

static

Definition at line 765 of file matroskaenc.c.

Referenced by end_ebml_master_crc32_tentatively(), mkv_end_cluster(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_seekhead(), and mkv_write_trailer().

end_ebml_master_crc32_tentatively()

static int end_ebml_master_crc32_tentatively ( AVIOContext *  pb, ebml_stored_master *  elem, MatroskaMuxContext *  mkv, uint32_t  id  )

static

Output EBML master.

Keep the buffer if seekable, allowing for later updates. Furthermore always add a SeekHead Entry for this element.

Definition at line 802 of file matroskaenc.c.

Referenced by mkv_write_info(), mkv_write_tags(), and mkv_write_tracks().

put_xiph_size()

static void put_xiph_size ( AVIOContext *  pb, int  size  )

static

Definition at line 825 of file matroskaenc.c.

Referenced by put_xiph_codecpriv().

mkv_deinit()

static void mkv_deinit ( AVFormatContext *  s )

static

Free the members allocated in the mux context.

Definition at line 834 of file matroskaenc.c.

mkv_start_seekhead()

static void mkv_start_seekhead ( MatroskaMuxContext *  mkv, AVIOContext *  pb  )

static

Initialize the SeekHead element to be ready to index level 1 Matroska elements.

Enough space to write MAX_SEEKHEAD_ENTRIES SeekHead entries will be reserved at the current file location.

Definition at line 854 of file matroskaenc.c.

Referenced by mkv_write_header().

mkv_write_seekhead()

static int mkv_write_seekhead ( AVIOContext *  pb, MatroskaMuxContext *  mkv, int  error_on_seek_failure, int64_t  destpos  )

static

Write the SeekHead to the file at the location reserved for it and seek to destpos afterwards.

When error_on_seek_failure is not set, failure to seek to the position designated for the SeekHead is not considered an error and it is presumed that destpos is the current position; failure to seek to destpos afterwards is always an error.

Returns

0 on success, < 0 on error.

Definition at line 874 of file matroskaenc.c.

Referenced by mkv_write_header(), and mkv_write_trailer().

mkv_add_cuepoint()

static int mkv_add_cuepoint ( MatroskaMuxContext *  mkv, int  stream, int64_t  ts, int64_t  cluster_pos, int64_t  relative_pos, int64_t  duration  )

static

Definition at line 915 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

mkv_assemble_cues()

static int mkv_assemble_cues ( AVStream **  streams, AVIOContext *  dyn_cp, AVIOContext *  cuepoint, const mkv_cues *  cues, mkv_track *  tracks, int  num_tracks, uint64_t  offset  )

static

Definition at line 947 of file matroskaenc.c.

Referenced by mkv_write_trailer().

put_xiph_codecpriv()

static int put_xiph_codecpriv ( AVFormatContext *  s, AVIOContext *  pb, const AVCodecParameters *  par, const uint8_t *  extradata, int  extradata_size  )

static

Definition at line 989 of file matroskaenc.c.

Referenced by mkv_assemble_native_codecprivate().

mkv_assemble_native_codecprivate()

static int mkv_assemble_native_codecprivate ( AVFormatContext *  s, AVIOContext *  dyn_cp, const AVCodecParameters *  par, const uint8_t *  extradata, int  extradata_size, unsigned *  size_to_reserve  )

static

Definition at line 1101 of file matroskaenc.c.

Referenced by mkv_assemble_codecprivate().

mkv_assemble_codecprivate()

static int mkv_assemble_codecprivate ( AVFormatContext *  s, AVIOContext *  dyn_cp, AVCodecParameters *  par, const uint8_t *  extradata, int  extradata_size, int  native_id, int  qt_id, uint8_t **  codecpriv, int *  codecpriv_size, unsigned *  max_payload_size  )

static

Definition at line 1157 of file matroskaenc.c.

Referenced by mkv_update_codecprivate(), and mkv_write_track().

mkv_put_codecprivate()

static void mkv_put_codecprivate ( AVIOContext *  pb, unsigned  max_payload_size, const uint8_t *  codecpriv, unsigned  codecpriv_size  )

static

Definition at line 1230 of file matroskaenc.c.

Referenced by mkv_update_codecprivate(), and mkv_write_track().

mkv_update_codecprivate()

static int mkv_update_codecprivate ( AVFormatContext *  s, MatroskaMuxContext *  mkv, uint8_t *  side_data, int  side_data_size, AVCodecParameters *  par, AVIOContext *  pb, mkv_track *  track, unsigned  alternative_size  )

static

Definition at line 1259 of file matroskaenc.c.

Referenced by mkv_check_new_extra_data().

mkv_write_video_color()

static void mkv_write_video_color ( EbmlWriter *  writer, const AVStream *  st, const AVCodecParameters *  par  )

static

Definition at line 1297 of file matroskaenc.c.

Referenced by mkv_write_track_video().

mkv_write_video_projection()

static void mkv_write_video_projection ( AVFormatContext *  s, EbmlWriter *  writer, const AVStream *  st, uint8_t  private[]  )

static

Definition at line 1380 of file matroskaenc.c.

Referenced by mkv_write_track_video().

mkv_write_field_order()

static void mkv_write_field_order ( EbmlWriter *  writer, int  is_webm, enum AVFieldOrder  field_order  )

static

Definition at line 1446 of file matroskaenc.c.

Referenced by mkv_write_track_video().

mkv_write_stereo_mode()

static int mkv_write_stereo_mode ( AVFormatContext *  s, EbmlWriter *  writer, AVStream *  st, int  is_webm, int *  h_width, int *  h_height  )

static

Definition at line 1486 of file matroskaenc.c.

Referenced by mkv_write_track_video().

mkv_write_dovi()

static void mkv_write_dovi ( AVFormatContext *  s, AVIOContext *  pb, AVStream *  st  )

static

Definition at line 1578 of file matroskaenc.c.

Referenced by mkv_write_track().

mkv_write_track_video()

static int mkv_write_track_video ( AVFormatContext *  s, MatroskaMuxContext *  mkv, AVStream *  st, const AVCodecParameters *  par, AVIOContext *  pb  )

static

Definition at line 1611 of file matroskaenc.c.

Referenced by mkv_write_track().

mkv_write_track()

static int mkv_write_track ( AVFormatContext *  s, MatroskaMuxContext *  mkv, AVStream *  st, mkv_track *  track, AVIOContext *  pb, int  is_default  )

static

Definition at line 1691 of file matroskaenc.c.

Referenced by mkv_write_tracks().

mkv_write_tracks()

static int mkv_write_tracks ( AVFormatContext *  s )

static

Definition at line 1927 of file matroskaenc.c.

Referenced by mkv_write_header().

mkv_write_simpletag()

static int mkv_write_simpletag ( AVIOContext *  pb, const AVDictionaryEntry *  t  )

static

Definition at line 1981 of file matroskaenc.c.

Referenced by mkv_write_tag().

mkv_write_tag_targets()

static void mkv_write_tag_targets ( MatroskaMuxContext *  mkv, AVIOContext *  pb, uint32_t  elementid, uint64_t  uid  )

static

Definition at line 2016 of file matroskaenc.c.

Referenced by mkv_write_tag().

mkv_check_tag_name()

static int mkv_check_tag_name ( const char *  name, uint32_t  elementid  )

static

Definition at line 2026 of file matroskaenc.c.

Referenced by mkv_write_tag().

mkv_write_tag()

static int mkv_write_tag ( MatroskaMuxContext *  mkv, const AVDictionary *  m, AVIOContext **  pb, unsigned  reserved_size, uint32_t  elementid, uint64_t  uid  )

static

Definition at line 2040 of file matroskaenc.c.

Referenced by mkv_write_chapters(), and mkv_write_tags().

mkv_write_tags()

static int mkv_write_tags ( AVFormatContext *  s )

static

Definition at line 2081 of file matroskaenc.c.

Referenced by mkv_write_header().

mkv_new_chapter_ids_needed()

static int mkv_new_chapter_ids_needed ( const AVFormatContext *  s )

static

Definition at line 2132 of file matroskaenc.c.

Referenced by mkv_write_chapters().

mkv_write_chapters()

static int mkv_write_chapters ( AVFormatContext *  s )

static

Definition at line 2144 of file matroskaenc.c.

Referenced by mkv_write_header(), and mkv_write_trailer().

get_mimetype()

static const char* get_mimetype ( const AVStream *  st )

static

Definition at line 2229 of file matroskaenc.c.

Referenced by mkv_init(), and mkv_write_attachments().

mkv_write_attachments()

static int mkv_write_attachments ( AVFormatContext *  s )

static

Definition at line 2246 of file matroskaenc.c.

Referenced by mkv_write_header().

get_metadata_duration()

static int64_t get_metadata_duration ( AVFormatContext *  s )

static

Definition at line 2296 of file matroskaenc.c.

Referenced by mkv_write_info().

ebml_write_header()

static void ebml_write_header ( AVIOContext *  pb, const char *  doctype, int  version  )

static

Definition at line 2320 of file matroskaenc.c.

Referenced by mkv_write_header().

mkv_write_info()

static int mkv_write_info ( AVFormatContext *  s )

static

Definition at line 2336 of file matroskaenc.c.

Referenced by mkv_write_header().

mkv_write_header()

static int mkv_write_header ( AVFormatContext *  s )

static

Definition at line 2395 of file matroskaenc.c.

mkv_reformat_av1()

static int mkv_reformat_av1 ( MatroskaMuxContext *  mkv, AVIOContext *  pb, const AVPacket *  pkt, int *  size  )

static

Definition at line 2551 of file matroskaenc.c.

Referenced by mkv_init().

webm_reformat_vtt()

static int webm_reformat_vtt ( MatroskaMuxContext *  mkv, AVIOContext *  pb, const AVPacket *  pkt, int *  size  )

static

Definition at line 2561 of file matroskaenc.c.

Referenced by mkv_init().

mkv_write_block()

static int mkv_write_block ( void *  logctx, MatroskaMuxContext *  mkv, AVIOContext *  pb, const AVCodecParameters *  par, mkv_track *  track, const AVPacket *  pkt, int  keyframe, int64_t  ts, uint64_t  duration, int  force_blockgroup, int64_t  relative_packet_pos  )

static

Definition at line 2588 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

mkv_end_cluster()

static int mkv_end_cluster ( AVFormatContext *  s )

static

Definition at line 2665 of file matroskaenc.c.

Referenced by mkv_write_flush_packet(), mkv_write_packet(), and mkv_write_packet_internal().

mkv_check_new_extra_data()

static int mkv_check_new_extra_data ( AVFormatContext *  s, const AVPacket *  pkt  )

static

Definition at line 2684 of file matroskaenc.c.

Referenced by mkv_write_packet().

mkv_write_packet_internal()

static int mkv_write_packet_internal ( AVFormatContext *  s, const AVPacket *  pkt  )

static

Definition at line 2756 of file matroskaenc.c.

Referenced by mkv_write_packet(), and mkv_write_trailer().

mkv_write_packet()

static int mkv_write_packet ( AVFormatContext *  s, const AVPacket *  pkt  )

static

Definition at line 2831 of file matroskaenc.c.

Referenced by mkv_write_flush_packet().

mkv_write_flush_packet()

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

static

Definition at line 2905 of file matroskaenc.c.

mkv_write_trailer()

static int mkv_write_trailer ( AVFormatContext *  s )

static

Definition at line 2923 of file matroskaenc.c.

mkv_get_uid()

static uint64_t mkv_get_uid ( const mkv_track *  tracks, int  i, AVLFG *  c  )

static

Definition at line 3100 of file matroskaenc.c.

Referenced by mkv_init().

mkv_init()

static int mkv_init ( struct AVFormatContext *  s )

static

Definition at line 3118 of file matroskaenc.c.

mkv_check_bitstream()

static int mkv_check_bitstream ( AVFormatContext *  s, AVStream *  st, const AVPacket *  pkt  )

static

Definition at line 3232 of file matroskaenc.c.

Variable Documentation

additional_audio_tags

const AVCodecTag additional_audio_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_ALAC,      0XFFFFFFFF },
    { AV_CODEC_ID_MLP,       0xFFFFFFFF },
    { AV_CODEC_ID_OPUS,      0xFFFFFFFF },
    { AV_CODEC_ID_PCM_S16BE, 0xFFFFFFFF },
    { AV_CODEC_ID_PCM_S24BE, 0xFFFFFFFF },
    { AV_CODEC_ID_PCM_S32BE, 0xFFFFFFFF },
    { AV_CODEC_ID_QDMC,      0xFFFFFFFF },
    { AV_CODEC_ID_QDM2,      0xFFFFFFFF },
    { AV_CODEC_ID_RA_144,    0xFFFFFFFF },
    { AV_CODEC_ID_RA_288,    0xFFFFFFFF },
    { AV_CODEC_ID_COOK,      0xFFFFFFFF },
    { AV_CODEC_ID_TRUEHD,    0xFFFFFFFF },
    { AV_CODEC_ID_NONE,      0xFFFFFFFF }
}

Definition at line 3250 of file matroskaenc.c.

additional_video_tags

const AVCodecTag additional_video_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_RV10,      0xFFFFFFFF },
    { AV_CODEC_ID_RV20,      0xFFFFFFFF },
    { AV_CODEC_ID_RV30,      0xFFFFFFFF },
    { AV_CODEC_ID_NONE,      0xFFFFFFFF }
}

Definition at line 3266 of file matroskaenc.c.

additional_subtitle_tags

const AVCodecTag additional_subtitle_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_DVB_SUBTITLE,      0xFFFFFFFF },
    { AV_CODEC_ID_DVD_SUBTITLE,      0xFFFFFFFF },
    { AV_CODEC_ID_HDMV_PGS_SUBTITLE, 0xFFFFFFFF },
    { AV_CODEC_ID_NONE,              0xFFFFFFFF }
}

Definition at line 3273 of file matroskaenc.c.

options

const AVOption options[]

static

Initial value:

= {
    { "reserve_index_space", "Reserve a given amount of space (in bytes) at the beginning of the file for the index (cues).", OFFSET(reserve_cues_space), AV_OPT_TYPE_INT,   { .i64 = 0 },   0, INT_MAX,   FLAGS },
    { "cues_to_front", "Move Cues (the index) to the front by shifting data if necessary", OFFSET(move_cues_to_front), AV_OPT_TYPE_BOOL, { .i64 = 0}, 0, 1, FLAGS },
    { "cluster_size_limit",  "Store at most the provided amount of bytes in a cluster. ",                                     OFFSET(cluster_size_limit), AV_OPT_TYPE_INT  , { .i64 = -1 }, -1, INT_MAX,   FLAGS },
    { "cluster_time_limit",  "Store at most the provided number of milliseconds in a cluster.",                               OFFSET(cluster_time_limit), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT64_MAX, FLAGS },
    { "dash", "Create a WebM file conforming to WebM DASH specification", OFFSET(is_dash), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
    { "dash_track_number", "Track number for the DASH stream", OFFSET(dash_track_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, FLAGS },
    { "live", "Write files assuming it is a live stream.", OFFSET(is_live), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
    { "allow_raw_vfw", "allow RAW VFW mode", OFFSET(allow_raw_vfw), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
    { "flipped_raw_rgb", "Raw RGB bitmaps in VFW mode are stored bottom-up", OFFSET(flipped_raw_rgb), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
    { "write_crc32", "write a CRC32 element inside every Level 1 element", OFFSET(write_crc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
    { "default_mode", "Controls how a track's FlagDefault is inferred", OFFSET(default_mode), AV_OPT_TYPE_INT, { .i64 = DEFAULT_MODE_PASSTHROUGH }, DEFAULT_MODE_INFER, DEFAULT_MODE_PASSTHROUGH, FLAGS, "default_mode" },
    { "infer", "For each track type, mark each track of disposition default as default; if none exists, mark the first track as default.", 0, AV_OPT_TYPE_CONST, { .i64 = DEFAULT_MODE_INFER }, 0, 0, FLAGS, "default_mode" },
    { "infer_no_subs", "For each track type, mark each track of disposition default as default; for audio and video: if none exists, mark the first track as default.", 0, AV_OPT_TYPE_CONST, { .i64 = DEFAULT_MODE_INFER_NO_SUBS }, 0, 0, FLAGS, "default_mode" },
    { "passthrough", "Use the disposition flag as-is", 0, AV_OPT_TYPE_CONST, { .i64 = DEFAULT_MODE_PASSTHROUGH }, 0, 0, FLAGS, "default_mode" },
    { NULL },
}

Definition at line 3282 of file matroskaenc.c.

matroska_webm_class

const AVClass matroska_webm_class

static

Initial value:

= {
    .class_name = "matroska/webm muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 3300 of file matroskaenc.c.