FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
matroskaenc.c File Reference
#include <stdint.h>
#include "av1.h"
#include "avc.h"
#include "hevc.h"
#include "avformat.h"
#include "avio_internal.h"
#include "avlanguage.h"
#include "flacenc.h"
#include "internal.h"
#include "isom.h"
#include "matroska.h"
#include "riff.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/random_seed.h"
#include "libavutil/rational.h"
#include "libavutil/samplefmt.h"
#include "libavutil/stereo3d.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  mkv_seekhead_entry
 
struct  mkv_seekhead
 
struct  mkv_cuepoint
 
struct  mkv_cues
 
struct  mkv_track
 
struct  MatroskaMuxContext
 

Macros

#define MAX_SEEKHEAD_ENTRIES   7
 
#define IS_SEEKABLE(pb, mkv)
 
#define MODE_MATROSKAv2   0x01
 
#define MODE_WEBM   0x02
 
#define MAX_EBML_HEADER_SIZE   35
 2 bytes * 7 for EBML IDs, 7 1-byte EBML lengths, 6 1-byte uint, 8 byte for "matroska" doctype string More...
 
#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 OPUS_SEEK_PREROLL   80000000
 Seek preroll value for opus. More...
 
#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 }
 

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_sint (AVIOContext *pb, uint32_t elementid, int64_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 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, mkv_cues *cues, mkv_track *tracks, int num_tracks)
 
static int put_xiph_codecpriv (AVFormatContext *s, AVIOContext *pb, const AVCodecParameters *par)
 
static int put_wv_codecpriv (AVIOContext *pb, const AVCodecParameters *par)
 
static int put_flac_codecpriv (AVFormatContext *s, AVIOContext *pb, const AVCodecParameters *par)
 
static int get_aac_sample_rates (AVFormatContext *s, MatroskaMuxContext *mkv, const uint8_t *extradata, int extradata_size, int *sample_rate, int *output_sample_rate)
 
static int mkv_write_native_codecprivate (AVFormatContext *s, AVIOContext *pb, const AVCodecParameters *par, AVIOContext *dyn_cp)
 
static int mkv_write_codecprivate (AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int native_id, int qt_id)
 
static void mkv_write_video_color (AVIOContext *pb, const AVStream *st, const AVCodecParameters *par)
 
static void mkv_write_video_projection (AVFormatContext *s, AVIOContext *pb, const AVStream *st)
 
static void mkv_write_field_order (AVIOContext *pb, int mode, enum AVFieldOrder field_order)
 
static int mkv_write_stereo_mode (AVFormatContext *s, AVIOContext *pb, AVStream *st, int mode, int *h_width, int *h_height)
 
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 int mkv_write_tag_targets (MatroskaMuxContext *mkv, AVIOContext **pb, ebml_master *tag, 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, ebml_master *tag, uint32_t elementid, uint64_t uid)
 
static int mkv_check_tag (const AVDictionary *m, uint32_t elementid)
 
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 int mkv_write_header (AVFormatContext *s)
 
static int mkv_blockgroup_size (int pkt_size, int track_num_size)
 
static int mkv_strip_wavpack (const uint8_t *src, uint8_t **pdst, int *size)
 
static int mkv_write_block (AVFormatContext *s, AVIOContext *pb, uint32_t blockid, const AVPacket *pkt, int keyframe)
 
static int mkv_write_vtt_blocks (AVFormatContext *s, AVIOContext *pb, const AVPacket *pkt)
 
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 int mkv_query_codec (enum AVCodecID codec_id, int std_compliance)
 
static int webm_query_codec (enum AVCodecID codec_id, int std_compliance)
 
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 (struct AVFormatContext *s, 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 []
 

Macro Definition Documentation

◆ MAX_SEEKHEAD_ENTRIES

#define MAX_SEEKHEAD_ENTRIES   7

Definition at line 59 of file matroskaenc.c.

◆ IS_SEEKABLE

#define IS_SEEKABLE (   pb,
  mkv 
)
Value:
(((pb)->seekable & AVIO_SEEKABLE_NORMAL) && \
!(mkv)->is_live)

Definition at line 61 of file matroskaenc.c.

◆ MODE_MATROSKAv2

#define MODE_MATROSKAv2   0x01

Definition at line 120 of file matroskaenc.c.

◆ MODE_WEBM

#define MODE_WEBM   0x02

Definition at line 121 of file matroskaenc.c.

◆ MAX_EBML_HEADER_SIZE

#define MAX_EBML_HEADER_SIZE   35

2 bytes * 7 for EBML IDs, 7 1-byte EBML lengths, 6 1-byte uint, 8 byte for "matroska" doctype string

Definition at line 165 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 169 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 172 of file matroskaenc.c.

◆ OPUS_SEEK_PREROLL

#define OPUS_SEEK_PREROLL   80000000

Seek preroll value for opus.

Definition at line 175 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 2813 of file matroskaenc.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 2814 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 64 of file matroskaenc.c.

Function Documentation

◆ ebml_id_size()

static int ebml_id_size ( uint32_t  id)
static

Definition at line 177 of file matroskaenc.c.

Referenced by mkv_write_seekhead(), and put_ebml_id().

◆ put_ebml_id()

static void put_ebml_id ( AVIOContext pb,
uint32_t  id 
)
static

◆ put_ebml_size_unknown()

static void put_ebml_size_unknown ( AVIOContext pb,
int  bytes 
)
static

Write an EBML size meaning "unknown size".

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

Definition at line 194 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 207 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 220 of file matroskaenc.c.

Referenced by mkv_blockgroup_size(), 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 229 of file matroskaenc.c.

Referenced by mkv_write_block(), mkv_write_vtt_blocks(), 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
bytesThe 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 242 of file matroskaenc.c.

Referenced by end_ebml_master(), end_ebml_master_crc32(), end_ebml_master_crc32_tentatively(), mkv_write_block(), mkv_write_seekhead(), mkv_write_trailer(), mkv_write_vtt_blocks(), put_ebml_binary(), put_ebml_float(), put_ebml_sint(), 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 260 of file matroskaenc.c.

Referenced by mkv_write_attachments(), 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

◆ put_ebml_sint()

static void put_ebml_sint ( AVIOContext pb,
uint32_t  elementid,
int64_t  val 
)
static

Definition at line 280 of file matroskaenc.c.

Referenced by mkv_write_block().

◆ put_ebml_float()

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

◆ put_ebml_binary()

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

◆ put_ebml_string()

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

◆ 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
sizeThe number of bytes to reserve, which must be at least 2.

Definition at line 321 of file matroskaenc.c.

Referenced by mkv_check_new_extra_data(), mkv_start_seekhead(), mkv_write_header(), mkv_write_native_codecprivate(), mkv_write_seekhead(), mkv_write_tags(), 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

◆ end_ebml_master()

static void end_ebml_master ( AVIOContext pb,
ebml_master  master 
)
static

◆ mkv_add_seekhead_entry()

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

Definition at line 359 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

◆ 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

◆ 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 420 of file matroskaenc.c.

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

◆ put_xiph_size()

static void put_xiph_size ( AVIOContext pb,
int  size 
)
static

Definition at line 443 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 452 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 472 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 492 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 533 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

◆ mkv_assemble_cues()

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

Definition at line 556 of file matroskaenc.c.

Referenced by mkv_write_trailer().

◆ put_xiph_codecpriv()

static int put_xiph_codecpriv ( AVFormatContext s,
AVIOContext pb,
const AVCodecParameters par 
)
static

Definition at line 605 of file matroskaenc.c.

Referenced by mkv_write_native_codecprivate().

◆ put_wv_codecpriv()

static int put_wv_codecpriv ( AVIOContext pb,
const AVCodecParameters par 
)
static

Definition at line 635 of file matroskaenc.c.

Referenced by mkv_write_native_codecprivate().

◆ put_flac_codecpriv()

static int put_flac_codecpriv ( AVFormatContext s,
AVIOContext pb,
const AVCodecParameters par 
)
static

Definition at line 644 of file matroskaenc.c.

Referenced by mkv_write_native_codecprivate().

◆ get_aac_sample_rates()

static int get_aac_sample_rates ( AVFormatContext s,
MatroskaMuxContext mkv,
const uint8_t *  extradata,
int  extradata_size,
int sample_rate,
int output_sample_rate 
)
static

Definition at line 680 of file matroskaenc.c.

Referenced by mkv_check_new_extra_data(), and mkv_write_track().

◆ mkv_write_native_codecprivate()

static int mkv_write_native_codecprivate ( AVFormatContext s,
AVIOContext pb,
const AVCodecParameters par,
AVIOContext dyn_cp 
)
static

Definition at line 713 of file matroskaenc.c.

Referenced by mkv_write_codecprivate().

◆ mkv_write_codecprivate()

static int mkv_write_codecprivate ( AVFormatContext s,
AVIOContext pb,
AVCodecParameters par,
int  native_id,
int  qt_id 
)
static

Definition at line 765 of file matroskaenc.c.

Referenced by mkv_check_new_extra_data(), and mkv_write_track().

◆ mkv_write_video_color()

static void mkv_write_video_color ( AVIOContext pb,
const AVStream st,
const AVCodecParameters par 
)
static

Definition at line 835 of file matroskaenc.c.

Referenced by mkv_write_track().

◆ mkv_write_video_projection()

static void mkv_write_video_projection ( AVFormatContext s,
AVIOContext pb,
const AVStream st 
)
static

Definition at line 920 of file matroskaenc.c.

Referenced by mkv_write_track().

◆ mkv_write_field_order()

static void mkv_write_field_order ( AVIOContext pb,
int  mode,
enum AVFieldOrder  field_order 
)
static

Definition at line 987 of file matroskaenc.c.

Referenced by mkv_write_track().

◆ mkv_write_stereo_mode()

static int mkv_write_stereo_mode ( AVFormatContext s,
AVIOContext pb,
AVStream st,
int  mode,
int h_width,
int h_height 
)
static

Definition at line 1026 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 1117 of file matroskaenc.c.

Referenced by mkv_write_tracks().

◆ mkv_write_tracks()

static int mkv_write_tracks ( AVFormatContext s)
static

Definition at line 1394 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 1452 of file matroskaenc.c.

Referenced by mkv_write_tag().

◆ mkv_write_tag_targets()

static int mkv_write_tag_targets ( MatroskaMuxContext mkv,
AVIOContext **  pb,
ebml_master tag,
uint32_t  elementid,
uint64_t  uid 
)
static

Definition at line 1486 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 1506 of file matroskaenc.c.

Referenced by mkv_check_tag(), and mkv_write_tag().

◆ mkv_write_tag()

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

Definition at line 1520 of file matroskaenc.c.

Referenced by mkv_write_chapters(), and mkv_write_tags().

◆ mkv_check_tag()

static int mkv_check_tag ( const AVDictionary m,
uint32_t  elementid 
)
static

Definition at line 1546 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 1557 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 1630 of file matroskaenc.c.

Referenced by mkv_write_chapters().

◆ mkv_write_chapters()

static int mkv_write_chapters ( AVFormatContext s)
static

Definition at line 1642 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 1723 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 1740 of file matroskaenc.c.

Referenced by mkv_write_header().

◆ get_metadata_duration()

static int64_t get_metadata_duration ( AVFormatContext s)
static

Definition at line 1785 of file matroskaenc.c.

Referenced by mkv_write_header().

◆ mkv_write_header()

static int mkv_write_header ( AVFormatContext s)
static

Definition at line 1809 of file matroskaenc.c.

◆ mkv_blockgroup_size()

static int mkv_blockgroup_size ( int  pkt_size,
int  track_num_size 
)
static

Definition at line 1964 of file matroskaenc.c.

Referenced by mkv_write_packet_internal(), and mkv_write_vtt_blocks().

◆ mkv_strip_wavpack()

static int mkv_strip_wavpack ( const uint8_t *  src,
uint8_t **  pdst,
int size 
)
static

Definition at line 1973 of file matroskaenc.c.

Referenced by mkv_write_block().

◆ mkv_write_block()

static int mkv_write_block ( AVFormatContext s,
AVIOContext pb,
uint32_t  blockid,
const AVPacket pkt,
int  keyframe 
)
static

Definition at line 2026 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

◆ mkv_write_vtt_blocks()

static int mkv_write_vtt_blocks ( AVFormatContext s,
AVIOContext pb,
const AVPacket pkt 
)
static

Definition at line 2139 of file matroskaenc.c.

Referenced by mkv_write_packet_internal().

◆ mkv_end_cluster()

static int mkv_end_cluster ( AVFormatContext s)
static

◆ mkv_check_new_extra_data()

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

Definition at line 2211 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 2302 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 2391 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 2465 of file matroskaenc.c.

◆ mkv_write_trailer()

static int mkv_write_trailer ( AVFormatContext s)
static

Definition at line 2483 of file matroskaenc.c.

◆ mkv_query_codec()

static int mkv_query_codec ( enum AVCodecID  codec_id,
int  std_compliance 
)
static

Definition at line 2639 of file matroskaenc.c.

◆ webm_query_codec()

static int webm_query_codec ( enum AVCodecID  codec_id,
int  std_compliance 
)
static

Definition at line 2656 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 2666 of file matroskaenc.c.

Referenced by mkv_init().

◆ mkv_init()

static int mkv_init ( struct AVFormatContext s)
static

Definition at line 2684 of file matroskaenc.c.

◆ mkv_check_bitstream()

static int mkv_check_bitstream ( struct AVFormatContext s,
const AVPacket pkt 
)
static

Definition at line 2768 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 2783 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 2799 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_NONE, 0xFFFFFFFF }
}

Definition at line 2806 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 },
{ "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_INFER }, DEFAULT_MODE_INFER, DEFAULT_MODE_PASSTHROUGH, FLAGS, "default_mode" },
{ "infer", "For each track type, mark the first 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 the first 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 2815 of file matroskaenc.c.

AV_DISPOSITION_DEFAULT
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:777
AV_CODEC_ID_RA_144
@ AV_CODEC_ID_RA_144
Definition: codec_id.h:408
AV_CODEC_ID_ALAC
@ AV_CODEC_ID_ALAC
Definition: codec_id.h:437
AV_CODEC_ID_HDMV_PGS_SUBTITLE
@ AV_CODEC_ID_HDMV_PGS_SUBTITLE
Definition: codec_id.h:525
AV_CODEC_ID_TRUEHD
@ AV_CODEC_ID_TRUEHD
Definition: codec_id.h:465
AV_CODEC_ID_PCM_S16BE
@ AV_CODEC_ID_PCM_S16BE
Definition: codec_id.h:313
DEFAULT_MODE_INFER
@ DEFAULT_MODE_INFER
Definition: matroskaenc.c:65
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AV_CODEC_ID_DVB_SUBTITLE
@ AV_CODEC_ID_DVB_SUBTITLE
Definition: codec_id.h:520
DEFAULT_MODE_PASSTHROUGH
@ DEFAULT_MODE_PASSTHROUGH
Definition: matroskaenc.c:67
AV_OPT_TYPE_INT64
@ AV_OPT_TYPE_INT64
Definition: opt.h:226
NULL
#define NULL
Definition: coverity.c:32
AV_CODEC_ID_DVD_SUBTITLE
@ AV_CODEC_ID_DVD_SUBTITLE
Definition: codec_id.h:519
AV_CODEC_ID_QDM2
@ AV_CODEC_ID_QDM2
Definition: codec_id.h:440
DEFAULT_MODE_INFER_NO_SUBS
@ DEFAULT_MODE_INFER_NO_SUBS
Definition: matroskaenc.c:66
AV_CODEC_ID_QDMC
@ AV_CODEC_ID_QDMC
Definition: codec_id.h:471
AV_CODEC_ID_OPUS
@ AV_CODEC_ID_OPUS
Definition: codec_id.h:481
AV_CODEC_ID_RV30
@ AV_CODEC_ID_RV30
Definition: codec_id.h:117
AV_CODEC_ID_RA_288
@ AV_CODEC_ID_RA_288
Definition: codec_id.h:409
i
int i
Definition: input.c:407
AV_CODEC_ID_RV10
@ AV_CODEC_ID_RV10
Definition: codec_id.h:54
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:47
AV_CODEC_ID_RV20
@ AV_CODEC_ID_RV20
Definition: codec_id.h:55
AV_CODEC_ID_PCM_S32BE
@ AV_CODEC_ID_PCM_S32BE
Definition: codec_id.h:321
OFFSET
#define OFFSET(x)
Definition: matroskaenc.c:2813
FLAGS
#define FLAGS
Definition: matroskaenc.c:2814
AVIO_SEEKABLE_NORMAL
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:40
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
AV_CODEC_ID_COOK
@ AV_CODEC_ID_COOK
Definition: codec_id.h:441
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
AV_CODEC_ID_PCM_S24BE
@ AV_CODEC_ID_PCM_S24BE
Definition: codec_id.h:325
AV_CODEC_ID_MLP
@ AV_CODEC_ID_MLP
Definition: codec_id.h:450