#include "avformat.h"
#include "internal.h"
#include "riff.h"
#include "isom.h"
#include "matroska.h"
#include "avc.h"
#include "flacenc.h"
#include "avlanguage.h"
#include "libavutil/samplefmt.h"
#include "libavutil/sha.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat.h"
#include "libavutil/mathematics.h"
#include "libavutil/random_seed.h"
#include "libavutil/lfg.h"
#include "libavutil/dict.h"
#include "libavutil/avstring.h"
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"

Include dependency graph for matroskaenc.c:

Data Structures
struct	ebml_master

struct	mkv_seekhead_entry

struct	mkv_seekhead

struct	mkv_cuepoint

struct	mkv_cues

struct	mkv_track

struct	MatroskaMuxContext

Macros
#define	MODE_MATROSKAv2 0x01

#define	MODE_WEBM 0x02

#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 22
	per-cuepoint-track - 3 1-byte EBML IDs, 3 1-byte EBML sizes, 2 8-byte uint max More...

#define	MAX_CUEPOINT_SIZE(num_tracks) 12 + MAX_CUETRACKPOS_SIZE*num_tracks
	per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max More...

Typedefs
typedef struct ebml_master	ebml_master

typedef struct mkv_seekhead_entry	mkv_seekhead_entry

typedef struct mkv_seekhead	mkv_seekhead

typedef struct MatroskaMuxContext	MatroskaMuxContext

Functions
static int	ebml_id_size (unsigned int id)

static void	put_ebml_id (AVIOContext *pb, unsigned int 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)
	Calculate how many bytes are needed to represent a given number in EBML. More...

static void	put_ebml_num (AVIOContext *pb, uint64_t num, int bytes)
	Write a number in EBML variable length format. More...

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

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

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

static void	put_ebml_string (AVIOContext pb, unsigned int elementid, const char str)

static void	put_ebml_void (AVIOContext *pb, uint64_t size)
	Write a void element of a given size. More...

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

static void	end_ebml_master (AVIOContext *pb, ebml_master master)

static void	put_xiph_size (AVIOContext *pb, int size)

static mkv_seekhead *	mkv_start_seekhead (AVIOContext *pb, int64_t segment_offset, int numelements)
	Initialize a mkv_seekhead element to be ready to index level 1 Matroska elements. More...

static int	mkv_add_seekhead_entry (mkv_seekhead *seekhead, unsigned int elementid, uint64_t filepos)

static int64_t	mkv_write_seekhead (AVIOContext pb, mkv_seekhead seekhead)
	Write the seek head to the file and free it. More...

static mkv_cues *	mkv_start_cues (int64_t segment_offset)

static int	mkv_add_cuepoint (mkv_cues *cues, int stream, int64_t ts, int64_t cluster_pos)

static int64_t	mkv_write_cues (AVIOContext pb, mkv_cues cues, mkv_track *tracks, int num_tracks)

static int	put_xiph_codecpriv (AVFormatContext s, AVIOContext pb, AVCodecContext *codec)

static void	get_aac_sample_rates (AVFormatContext s, AVCodecContext codec, int sample_rate, int output_sample_rate)

static int	mkv_write_codecprivate (AVFormatContext s, AVIOContext pb, AVCodecContext *codec, int native_id, int qt_id)

static int	mkv_write_tracks (AVFormatContext *s)

static int	mkv_write_chapters (AVFormatContext *s)

static void	mkv_write_simpletag (AVIOContext pb, AVDictionaryEntry t)

static int	mkv_write_tag (AVFormatContext s, AVDictionary m, unsigned int elementid, unsigned int uid, ebml_master *tags)

static int	mkv_write_tags (AVFormatContext *s)

static int	mkv_write_attachments (AVFormatContext *s)

static int	mkv_write_header (AVFormatContext *s)

static int	mkv_blockgroup_size (int pkt_size)

static int	ass_get_duration (const uint8_t *p)

static void	mkv_write_block (AVFormatContext s, AVIOContext pb, unsigned int blockid, AVPacket *pkt, int flags)

static int	srt_get_duration (uint8_t **buf)

static int	mkv_write_srt_blocks (AVFormatContext s, AVIOContext pb, AVPacket *pkt)

static void	mkv_flush_dynbuf (AVFormatContext *s)

static int	mkv_write_packet_internal (AVFormatContext s, AVPacket pkt)

static int	mkv_write_packet (AVFormatContext s, AVPacket pkt)

static int	mkv_write_trailer (AVFormatContext *s)

static int	mkv_query_codec (enum AVCodecID codec_id, int std_compliance)

Variables
const AVCodecTag	additional_audio_tags []

const AVCodecTag	additional_video_tags []

Macro Definition Documentation

#define MAX_CUEPOINT_SIZE ( num_tracks ) 12 + MAX_CUETRACKPOS_SIZE*num_tracks

per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max

Definition at line 110 of file matroskaenc.c.

Referenced by mkv_write_cues().

#define MAX_CUETRACKPOS_SIZE 22

per-cuepoint-track - 3 1-byte EBML IDs, 3 1-byte EBML sizes, 2 8-byte uint max

Definition at line 107 of file matroskaenc.c.

Referenced by mkv_write_cues().

#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 103 of file matroskaenc.c.

Referenced by mkv_start_seekhead(), and mkv_write_seekhead().

#define MODE_MATROSKAv2 0x01

Definition at line 78 of file matroskaenc.c.

Referenced by mkv_write_header().

#define MODE_WEBM 0x02

Definition at line 79 of file matroskaenc.c.

Referenced by mkv_write_header(), and mkv_write_tracks().

Typedef Documentation

typedef struct ebml_master ebml_master

typedef struct MatroskaMuxContext MatroskaMuxContext

typedef struct mkv_seekhead mkv_seekhead

typedef struct mkv_seekhead_entry mkv_seekhead_entry

Function Documentation

static int ass_get_duration ( const uint8_t * p )

static

Definition at line 1062 of file matroskaenc.c.

static int ebml_id_size ( unsigned int id )

static

Definition at line 113 of file matroskaenc.c.

Referenced by mkv_write_seekhead(), and put_ebml_id().

static int ebml_num_size ( uint64_t num )

static

Calculate how many bytes are needed to represent a given number in EBML.

Definition at line 141 of file matroskaenc.c.

Referenced by mkv_blockgroup_size(), put_ebml_num(), and start_ebml_master().

static void end_ebml_master	(	AVIOContext *	pb,
		ebml_master	master
	)

static

Definition at line 237 of file matroskaenc.c.

Referenced by ass_get_duration(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_simpletag(), mkv_write_srt_blocks(), mkv_write_tag(), mkv_write_tags(), mkv_write_tracks(), and mkv_write_trailer().

static void get_aac_sample_rates	(	AVFormatContext *	s,
		AVCodecContext *	codec,
		int *	sample_rate,
		int *	output_sample_rate
	)

static

Definition at line 455 of file matroskaenc.c.

Referenced by mkv_write_tracks().

static int mkv_add_cuepoint	(	mkv_cues *	cues,
		int	stream,
		int64_t	ts,
		int64_t	cluster_pos
	)

static

Definition at line 368 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

static int mkv_add_seekhead_entry	(	mkv_seekhead *	seekhead,
		unsigned int	elementid,
		uint64_t	filepos
	)

static

Definition at line 286 of file matroskaenc.c.

Referenced by mkv_write_attachments(), mkv_write_chapters(), mkv_write_header(), mkv_write_tag(), mkv_write_tracks(), and mkv_write_trailer().

static int mkv_blockgroup_size ( int pkt_size )

static

Definition at line 1051 of file matroskaenc.c.

Referenced by ass_get_duration(), mkv_write_packet_internal(), and mkv_write_srt_blocks().

static void mkv_flush_dynbuf ( AVFormatContext * s )

static

Definition at line 1192 of file matroskaenc.c.

Referenced by mkv_write_packet(), and mkv_write_trailer().

static int mkv_query_codec	(	enum AVCodecID	codec_id,
		int	std_compliance
	)

static

Definition at line 1362 of file matroskaenc.c.

static mkv_cues* mkv_start_cues ( int64_t segment_offset )

static

Definition at line 358 of file matroskaenc.c.

Referenced by mkv_write_header().

static mkv_seekhead* mkv_start_seekhead	(	AVIOContext *	pb,
		int64_t	segment_offset,
		int	numelements
	)

static

Initialize a mkv_seekhead element to be ready to index level 1 Matroska elements.

If a maximum number of elements is specified, enough space will be reserved at the current file location to write a seek head of that size.

Parameters

segment_offset	The absolute offset to the position in the file where the segment begins.
numelements	The maximum number of elements that will be indexed by this seek head, 0 if unlimited.

Definition at line 266 of file matroskaenc.c.

Referenced by mkv_write_header().

static int mkv_write_attachments ( AVFormatContext * s )

static

Definition at line 855 of file matroskaenc.c.

Referenced by mkv_write_header().

static void mkv_write_block	(	AVFormatContext *	s,
		AVIOContext *	pb,
		unsigned int	blockid,
		AVPacket *	pkt,
		int	flags
	)

static

Definition at line 1122 of file matroskaenc.c.

Referenced by mkv_write_packet_internal(), and mkv_write_srt_blocks().

static int mkv_write_chapters ( AVFormatContext * s )

static

Definition at line 715 of file matroskaenc.c.

Referenced by mkv_write_header().

static int mkv_write_codecprivate	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVCodecContext *	codec,
		int	native_id,
		int	qt_id
	)

static

Definition at line 469 of file matroskaenc.c.

Referenced by mkv_write_tracks().

static int64_t mkv_write_cues	(	AVIOContext *	pb,
		mkv_cues *	cues,
		mkv_track *	tracks,
		int	num_tracks
	)

static

Definition at line 387 of file matroskaenc.c.

Referenced by mkv_write_trailer().

static int mkv_write_header ( AVFormatContext * s )

static

Definition at line 934 of file matroskaenc.c.

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

static

Definition at line 1267 of file matroskaenc.c.

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

static

Definition at line 1207 of file matroskaenc.c.

Referenced by mkv_write_packet(), and mkv_write_trailer().

static int64_t mkv_write_seekhead	(	AVIOContext *	pb,
		mkv_seekhead *	seekhead
	)

static

Write the seek head to the file and free it.

If a maximum number of elements was specified to mkv_start_seekhead(), the seek head will be written at the location reserved for it. Otherwise, it is written at the current location in the file.

Returns: The file offset where the seekhead was written, -1 if an error occurred.

Definition at line 314 of file matroskaenc.c.

Referenced by mkv_write_header(), and mkv_write_trailer().

static void mkv_write_simpletag	(	AVIOContext *	pb,
		AVDictionaryEntry *	t
	)

static

Definition at line 759 of file matroskaenc.c.

Referenced by mkv_write_tag().

static int mkv_write_srt_blocks	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVPacket *	pkt
	)

static

Definition at line 1176 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

static int mkv_write_tag	(	AVFormatContext *	s,
		AVDictionary *	m,
		unsigned int	elementid,
		unsigned int	uid,
		ebml_master *	tags
	)

static

Definition at line 789 of file matroskaenc.c.

Referenced by mkv_write_tags().

static int mkv_write_tags ( AVFormatContext * s )

static

Definition at line 818 of file matroskaenc.c.

Referenced by mkv_write_header().

static int mkv_write_tracks ( AVFormatContext * s )

static

Definition at line 537 of file matroskaenc.c.

Referenced by mkv_write_header().

static int mkv_write_trailer ( AVFormatContext * s )

static

Definition at line 1311 of file matroskaenc.c.

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

static

Definition at line 192 of file matroskaenc.c.

Referenced by mkv_write_attachments(), mkv_write_codecprivate(), mkv_write_header(), mkv_write_tracks(), and put_ebml_string().

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

static

Definition at line 185 of file matroskaenc.c.

Referenced by mkv_write_tracks(), and mkv_write_trailer().

static void put_ebml_id	(	AVIOContext *	pb,
		unsigned int	id
	)

static

Definition at line 118 of file matroskaenc.c.

Referenced by ass_get_duration(), mkv_write_block(), mkv_write_seekhead(), put_ebml_binary(), put_ebml_float(), put_ebml_uint(), put_ebml_void(), and start_ebml_master().

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

static

Write a number in EBML variable length format.

Parameters

bytes The number of bytes that need to be used to write the number. If zero, any number of bytes can be used.

Definition at line 154 of file matroskaenc.c.

Referenced by ass_get_duration(), end_ebml_master(), mkv_write_block(), mkv_write_seekhead(), put_ebml_binary(), put_ebml_float(), put_ebml_uint(), and put_ebml_void().

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 130 of file matroskaenc.c.

Referenced by start_ebml_master().

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

static

Definition at line 200 of file matroskaenc.c.

Referenced by mkv_write_attachments(), mkv_write_chapters(), mkv_write_header(), mkv_write_simpletag(), and mkv_write_tracks().

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

static

Definition at line 173 of file matroskaenc.c.

Referenced by ass_get_duration(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_srt_blocks(), mkv_write_tag(), and mkv_write_tracks().

static void put_ebml_void	(	AVIOContext *	pb,
		uint64_t	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 211 of file matroskaenc.c.

Referenced by mkv_start_seekhead(), mkv_write_header(), and mkv_write_seekhead().

static int put_xiph_codecpriv	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVCodecContext *	codec
	)

static

Definition at line 427 of file matroskaenc.c.

Referenced by mkv_write_codecprivate().

static void put_xiph_size	(	AVIOContext *	pb,
		int	size
	)

static

Definition at line 247 of file matroskaenc.c.

Referenced by put_xiph_codecpriv().

static int srt_get_duration ( uint8_t ** buf )

static

Definition at line 1157 of file matroskaenc.c.

Referenced by mkv_write_srt_blocks().

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

static

Definition at line 229 of file matroskaenc.c.

Referenced by ass_get_duration(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_simpletag(), mkv_write_srt_blocks(), mkv_write_tag(), and mkv_write_tracks().

Variable Documentation

const AVCodecTag additional_audio_tags[]

Initial value:

= {
    { AV_CODEC_ID_ALAC,      0XFFFFFFFF },
    { AV_CODEC_ID_EAC3,      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_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_WAVPACK,   0xFFFFFFFF },
    { AV_CODEC_ID_NONE,      0xFFFFFFFF }
}

Definition at line 1378 of file matroskaenc.c.

const AVCodecTag additional_video_tags[]

Initial value:

= {
    { AV_CODEC_ID_PRORES,    0xFFFFFFFF },
    { AV_CODEC_ID_RV10,      0xFFFFFFFF },
    { AV_CODEC_ID_RV20,      0xFFFFFFFF },
    { AV_CODEC_ID_RV30,      0xFFFFFFFF },
    { AV_CODEC_ID_RV40,      0xFFFFFFFF },
    { AV_CODEC_ID_VP9,       0xFFFFFFFF },
    { AV_CODEC_ID_NONE,      0xFFFFFFFF }
}

Definition at line 1395 of file matroskaenc.c.

Paris Hackday Code

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation