matroskadec.c File Reference

Matroska file demuxer. More...

#include "config.h"
#include <inttypes.h>
#include <stdio.h>
#include "libavutil/avstring.h"
#include "libavutil/base64.h"
#include "libavutil/dict.h"
#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/lzo.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/time_internal.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/flac.h"
#include "libavcodec/mpeg4audio.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "isom.h"
#include "matroska.h"
#include "oggdec.h"
#include "riff.h"
#include "rmsipr.h"

Go to the source code of this file.

Data Structures
struct	EbmlSyntax
struct	EbmlList
struct	EbmlBin
struct	Ebml
struct	MatroskaTrackCompression
struct	MatroskaTrackEncryption
struct	MatroskaTrackEncoding
struct	MatroskaTrackVideo
struct	MatroskaTrackAudio
struct	MatroskaTrackPlane
struct	MatroskaTrackOperation
struct	MatroskaTrack
struct	MatroskaAttachment
struct	MatroskaChapter
struct	MatroskaIndexPos
struct	MatroskaIndex
struct	MatroskaTag
struct	MatroskaTagTarget
struct	MatroskaTags
struct	MatroskaSeekhead
struct	MatroskaLevel
struct	MatroskaCluster
struct	MatroskaLevel1Element
struct	MatroskaDemuxContext
struct	MatroskaBlock
struct	CueDesc

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

Enumerations
enum	EbmlType {   EBML_NONE, EBML_UINT, EBML_FLOAT, EBML_STR,   EBML_UTF8, EBML_BIN, EBML_NEST, EBML_LEVEL1,   EBML_PASS, EBML_STOP, EBML_SINT, EBML_TYPE_COUNT }

Functions
static int	matroska_resync (MatroskaDemuxContext *matroska, int64_t last_pos)
static int	ebml_level_end (MatroskaDemuxContext *matroska)
static int	ebml_read_num (MatroskaDemuxContext *matroska, AVIOContext *pb, int max_size, uint64_t *number)
static int	ebml_read_length (MatroskaDemuxContext *matroska, AVIOContext *pb, uint64_t *number)
	Read a EBML length value. More...
static int	ebml_read_uint (AVIOContext *pb, int size, uint64_t *num)
static int	ebml_read_sint (AVIOContext *pb, int size, int64_t *num)
static int	ebml_read_float (AVIOContext *pb, int size, double *num)
static int	ebml_read_ascii (AVIOContext *pb, int size, char **str)
static int	ebml_read_binary (AVIOContext *pb, int length, EbmlBin *bin)
static int	ebml_read_master (MatroskaDemuxContext *matroska, uint64_t length)
static int	matroska_ebmlnum_uint (MatroskaDemuxContext *matroska, uint8_t *data, uint32_t size, uint64_t *num)
static int	matroska_ebmlnum_sint (MatroskaDemuxContext *matroska, uint8_t *data, uint32_t size, int64_t *num)
static int	ebml_parse_elem (MatroskaDemuxContext *matroska, EbmlSyntax *syntax, void *data)
static int	ebml_parse_id (MatroskaDemuxContext *matroska, EbmlSyntax *syntax, uint32_t id, void *data)
static int	ebml_parse (MatroskaDemuxContext *matroska, EbmlSyntax *syntax, void *data)
static int	ebml_parse_nest (MatroskaDemuxContext *matroska, EbmlSyntax *syntax, void *data)
static MatroskaLevel1Element *	matroska_find_level1_elem (MatroskaDemuxContext *matroska, uint32_t id)
static void	ebml_free (EbmlSyntax *syntax, void *data)
static int	matroska_probe (AVProbeData *p)
static MatroskaTrack *	matroska_find_track_by_num (MatroskaDemuxContext *matroska, int num)
static int	matroska_decode_buffer (uint8_t **buf, int *buf_size, MatroskaTrack *track)
static void	matroska_convert_tag (AVFormatContext *s, EbmlList *list, AVDictionary **metadata, char *prefix)
static void	matroska_convert_tags (AVFormatContext *s)
static int	matroska_parse_seekhead_entry (MatroskaDemuxContext *matroska, uint64_t pos)
static void	matroska_execute_seekhead (MatroskaDemuxContext *matroska)
static void	matroska_add_index_entries (MatroskaDemuxContext *matroska)
static void	matroska_parse_cues (MatroskaDemuxContext *matroska)
static int	matroska_aac_profile (char *codec_id)
static int	matroska_aac_sri (int samplerate)
static void	matroska_metadata_creation_time (AVDictionary **metadata, int64_t date_utc)
static int	matroska_parse_flac (AVFormatContext *s, MatroskaTrack *track, int *offset)
static int	matroska_parse_tracks (AVFormatContext *s)
static int	matroska_read_header (AVFormatContext *s)
static int	matroska_deliver_packet (MatroskaDemuxContext *matroska, AVPacket *pkt)
static void	matroska_clear_queue (MatroskaDemuxContext *matroska)
static int	matroska_parse_laces (MatroskaDemuxContext *matroska, uint8_t **buf, int *buf_size, int type, uint32_t **lace_buf, int *laces)
static int	matroska_parse_rm_audio (MatroskaDemuxContext *matroska, MatroskaTrack *track, AVStream *st, uint8_t *data, int size, uint64_t timecode, int64_t pos)
static int	matroska_parse_wavpack (MatroskaTrack *track, uint8_t *src, uint8_t **pdst, int *size)
static int	matroska_parse_webvtt (MatroskaDemuxContext *matroska, MatroskaTrack *track, AVStream *st, uint8_t *data, int data_len, uint64_t timecode, uint64_t duration, int64_t pos)
static int	matroska_parse_frame (MatroskaDemuxContext *matroska, MatroskaTrack *track, AVStream *st, uint8_t *data, int pkt_size, uint64_t timecode, uint64_t lace_duration, int64_t pos, int is_keyframe, uint8_t *additional, uint64_t additional_id, int additional_size, int64_t discard_padding)
static int	matroska_parse_block (MatroskaDemuxContext *matroska, uint8_t *data, int size, int64_t pos, uint64_t cluster_time, uint64_t block_duration, int is_keyframe, uint8_t *additional, uint64_t additional_id, int additional_size, int64_t cluster_pos, int64_t discard_padding)
static int	matroska_parse_cluster_incremental (MatroskaDemuxContext *matroska)
static int	matroska_parse_cluster (MatroskaDemuxContext *matroska)
static int	matroska_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	matroska_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int	matroska_read_close (AVFormatContext *s)
static CueDesc	get_cue_desc (AVFormatContext *s, int64_t ts, int64_t cues_start)
static int	webm_clusters_start_with_keyframe (AVFormatContext *s)
static int	buffer_size_after_time_downloaded (int64_t time_ns, double search_sec, int64_t bps, double min_buffer, double *buffer, double *sec_to_download, AVFormatContext *s, int64_t cues_start)
static int64_t	webm_dash_manifest_compute_bandwidth (AVFormatContext *s, int64_t cues_start)
static int	webm_dash_manifest_cues (AVFormatContext *s)
static int	webm_dash_manifest_read_header (AVFormatContext *s)
static int	webm_dash_manifest_read_packet (AVFormatContext *s, AVPacket *pkt)

Variables
static const EbmlSyntax	ebml_header []
static const EbmlSyntax	ebml_syntax []
static const EbmlSyntax	matroska_info []
static const EbmlSyntax	matroska_track_video []
static const EbmlSyntax	matroska_track_audio []
static const EbmlSyntax	matroska_track_encoding_compression []
static const EbmlSyntax	matroska_track_encoding_encryption []
static const EbmlSyntax	matroska_track_encoding []
static const EbmlSyntax	matroska_track_encodings []
static const EbmlSyntax	matroska_track_plane []
static const EbmlSyntax	matroska_track_combine_planes []
static const EbmlSyntax	matroska_track_operation []
static const EbmlSyntax	matroska_track []
static const EbmlSyntax	matroska_tracks []
static const EbmlSyntax	matroska_attachment []
static const EbmlSyntax	matroska_attachments []
static const EbmlSyntax	matroska_chapter_display []
static const EbmlSyntax	matroska_chapter_entry []
static const EbmlSyntax	matroska_chapter []
static const EbmlSyntax	matroska_chapters []
static const EbmlSyntax	matroska_index_pos []
static const EbmlSyntax	matroska_index_entry []
static const EbmlSyntax	matroska_index []
static const EbmlSyntax	matroska_simpletag []
static const EbmlSyntax	matroska_tagtargets []
static const EbmlSyntax	matroska_tag []
static const EbmlSyntax	matroska_tags []
static const EbmlSyntax	matroska_seekhead_entry []
static const EbmlSyntax	matroska_seekhead []
static const EbmlSyntax	matroska_segment []
static const EbmlSyntax	matroska_segments []
static const EbmlSyntax	matroska_blockmore []
static const EbmlSyntax	matroska_blockadditions []
static const EbmlSyntax	matroska_blockgroup []
static const EbmlSyntax	matroska_cluster []
static const EbmlSyntax	matroska_clusters []
static const EbmlSyntax	matroska_cluster_incremental_parsing []
static const EbmlSyntax	matroska_cluster_incremental []
static const EbmlSyntax	matroska_clusters_incremental []
static const char *const	matroska_doctypes [] = { "matroska", "webm" }
static const AVOption	options []
static const AVClass	webm_dash_class
AVInputFormat	ff_matroska_demuxer
AVInputFormat	ff_webm_dash_manifest_demuxer

Detailed Description

Matroska file demuxer.

Author

Ronald Bultje rbult.nosp@m.je@r.nosp@m.onald.nosp@m..bit.nosp@m.freak.nosp@m..net

with a little help from Moritz Bunkus morit.nosp@m.z@bu.nosp@m.nkus..nosp@m.org

totally reworked by Aurelien Jacobs aurel.nosp@m.@gnu.nosp@m.age.o.nosp@m.rg

See Also

specs available on the Matroska project page: http://www.matroska.org/

Definition in file matroskadec.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(MatroskaDemuxContext, x)

Definition at line 3462 of file matroskadec.c.

Enumeration Type Documentation

enum EbmlType

Enumerator
EBML_NONE
EBML_UINT
EBML_FLOAT
EBML_STR
EBML_UTF8
EBML_BIN
EBML_NEST
EBML_LEVEL1
EBML_PASS
EBML_STOP
EBML_SINT
EBML_TYPE_COUNT

Definition at line 67 of file matroskadec.c.

Function Documentation

static int matroska_resync ( MatroskaDemuxContext *  matroska, int64_t  last_pos  )

static

Definition at line 661 of file matroskadec.c.

Referenced by matroska_read_header(), and matroska_read_packet().

static int ebml_level_end ( MatroskaDemuxContext *  matroska )

static

Definition at line 694 of file matroskadec.c.

Referenced by ebml_parse_nest(), and matroska_parse_cluster_incremental().

static int ebml_read_num ( MatroskaDemuxContext *  matroska, AVIOContext *  pb, int  max_size, uint64_t *  number  )

static

Definition at line 717 of file matroskadec.c.

Referenced by ebml_parse(), ebml_read_length(), matroska_ebmlnum_uint(), webm_clusters_start_with_keyframe(), and webm_dash_manifest_cues().

static int ebml_read_length ( MatroskaDemuxContext *  matroska, AVIOContext *  pb, uint64_t *  number  )

static

Read a EBML length value.

This needs special handling for the "unknown length" case which has multiple encodings.

Definition at line 763 of file matroskadec.c.

Referenced by ebml_parse_elem(), webm_clusters_start_with_keyframe(), and webm_dash_manifest_cues().

static int ebml_read_uint ( AVIOContext *  pb, int  size, uint64_t *  num  )

static

Definition at line 776 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int ebml_read_sint ( AVIOContext *  pb, int  size, int64_t *  num  )

static

Definition at line 795 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int ebml_read_float ( AVIOContext *  pb, int  size, double *  num  )

static

Definition at line 819 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int ebml_read_ascii ( AVIOContext *  pb, int  size, char **  str  )

static

Definition at line 837 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int ebml_read_binary ( AVIOContext *  pb, int  length, EbmlBin *  bin  )

static

Definition at line 860 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int ebml_read_master ( MatroskaDemuxContext *  matroska, uint64_t  length  )

static

Definition at line 882 of file matroskadec.c.

Referenced by ebml_parse_elem().

static int matroska_ebmlnum_uint ( MatroskaDemuxContext *  matroska, uint8_t *  data, uint32_t  size, uint64_t *  num  )

static

Definition at line 904 of file matroskadec.c.

Referenced by matroska_ebmlnum_sint(), matroska_parse_block(), and matroska_parse_laces().

static int matroska_ebmlnum_sint ( MatroskaDemuxContext *  matroska, uint8_t *  data, uint32_t  size, int64_t *  num  )

static

Definition at line 915 of file matroskadec.c.

Referenced by matroska_parse_laces().

static int ebml_parse_elem ( MatroskaDemuxContext *  matroska, EbmlSyntax *  syntax, void *  data  )

static

Definition at line 1034 of file matroskadec.c.

Referenced by ebml_parse_id().

static int ebml_parse_id ( MatroskaDemuxContext *  matroska, EbmlSyntax *  syntax, uint32_t  id, void *  data  )

static

Definition at line 934 of file matroskadec.c.

Referenced by ebml_parse(), and ebml_parse_elem().

static int ebml_parse ( MatroskaDemuxContext *  matroska, EbmlSyntax *  syntax, void *  data  )

static

Definition at line 951 of file matroskadec.c.

Referenced by ebml_parse_nest(), matroska_parse_cluster(), matroska_parse_cluster_incremental(), matroska_parse_seekhead_entry(), and matroska_read_header().

static int ebml_parse_nest ( MatroskaDemuxContext *  matroska, EbmlSyntax *  syntax, void *  data  )

static

Definition at line 967 of file matroskadec.c.

Referenced by ebml_parse_elem().

static MatroskaLevel1Element* matroska_find_level1_elem ( MatroskaDemuxContext *  matroska, uint32_t  id  )

static

Definition at line 1002 of file matroskadec.c.

Referenced by ebml_parse_elem(), and matroska_execute_seekhead().

static void ebml_free ( EbmlSyntax *  syntax, void *  data  )

static

Definition at line 1126 of file matroskadec.c.

Referenced by matroska_parse_cluster(), matroska_parse_cluster_incremental(), matroska_read_close(), and matroska_read_header().

static int matroska_probe ( AVProbeData *  p )

static

Definition at line 1159 of file matroskadec.c.

static MatroskaTrack* matroska_find_track_by_num ( MatroskaDemuxContext *  matroska, int  num  )

static

Definition at line 1201 of file matroskadec.c.

Referenced by matroska_add_index_entries(), and matroska_parse_block().

static int matroska_decode_buffer ( uint8_t **  buf, int *  buf_size, MatroskaTrack *  track  )

static

Definition at line 1215 of file matroskadec.c.

Referenced by matroska_parse_frame(), and matroska_parse_tracks().

static void matroska_convert_tag ( AVFormatContext *  s, EbmlList *  list, AVDictionary **  metadata, char *  prefix  )

static

Definition at line 1351 of file matroskadec.c.

Referenced by matroska_convert_tags().

static void matroska_convert_tags ( AVFormatContext *  s )

static

Definition at line 1386 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_parse_seekhead_entry ( MatroskaDemuxContext *  matroska, uint64_t  pos  )

static

Definition at line 1420 of file matroskadec.c.

Referenced by matroska_execute_seekhead(), and matroska_parse_cues().

static void matroska_execute_seekhead ( MatroskaDemuxContext *  matroska )

static

Definition at line 1465 of file matroskadec.c.

Referenced by matroska_read_header().

static void matroska_add_index_entries ( MatroskaDemuxContext *  matroska )

static

Definition at line 1499 of file matroskadec.c.

Referenced by matroska_parse_cues(), and matroska_read_header().

static void matroska_parse_cues ( MatroskaDemuxContext *  matroska )

static

Definition at line 1531 of file matroskadec.c.

Referenced by matroska_read_seek(), and webm_dash_manifest_cues().

static int matroska_aac_profile ( char *  codec_id )

static

Definition at line 1550 of file matroskadec.c.

Referenced by matroska_parse_tracks().

static int matroska_aac_sri ( int  samplerate )

static

Definition at line 1561 of file matroskadec.c.

Referenced by matroska_parse_tracks().

static void matroska_metadata_creation_time ( AVDictionary **  metadata, int64_t  date_utc  )

static

Definition at line 1571 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_parse_flac ( AVFormatContext *  s, MatroskaTrack *  track, int *  offset  )

static

Definition at line 1582 of file matroskadec.c.

Referenced by matroska_parse_tracks().

static int matroska_parse_tracks ( AVFormatContext *  s )

static

Definition at line 1637 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_read_header ( AVFormatContext *  s )

static

Definition at line 2069 of file matroskadec.c.

Referenced by webm_dash_manifest_read_header().

static int matroska_deliver_packet ( MatroskaDemuxContext *  matroska, AVPacket *  pkt  )

static

Definition at line 2224 of file matroskadec.c.

Referenced by matroska_read_packet().

static void matroska_clear_queue ( MatroskaDemuxContext *  matroska )

static

Definition at line 2253 of file matroskadec.c.

Referenced by matroska_read_close(), matroska_read_seek(), and webm_clusters_start_with_keyframe().

static int matroska_parse_laces ( MatroskaDemuxContext *  matroska, uint8_t **  buf, int *  buf_size, int  type, uint32_t **  lace_buf, int *  laces  )

static

Definition at line 2267 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_parse_rm_audio ( MatroskaDemuxContext *  matroska, MatroskaTrack *  track, AVStream *  st, uint8_t *  data, int  size, uint64_t  timecode, int64_t  pos  )

static

Definition at line 2376 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_parse_wavpack ( MatroskaTrack *  track, uint8_t *  src, uint8_t **  pdst, int *  size  )

static

Definition at line 2453 of file matroskadec.c.

Referenced by matroska_parse_frame().

static int matroska_parse_webvtt ( MatroskaDemuxContext *  matroska, MatroskaTrack *  track, AVStream *  st, uint8_t *  data, int  data_len, uint64_t  timecode, uint64_t  duration, int64_t  pos  )

static

Definition at line 2533 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_parse_frame ( MatroskaDemuxContext *  matroska, MatroskaTrack *  track, AVStream *  st, uint8_t *  data, int  pkt_size, uint64_t  timecode, uint64_t  lace_duration, int64_t  pos, int  is_keyframe, uint8_t *  additional, uint64_t  additional_id, int  additional_size, int64_t  discard_padding  )

static

Definition at line 2649 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_parse_block ( MatroskaDemuxContext *  matroska, uint8_t *  data, int  size, int64_t  pos, uint64_t  cluster_time, uint64_t  block_duration, int  is_keyframe, uint8_t *  additional, uint64_t  additional_id, int  additional_size, int64_t  cluster_pos, int64_t  discard_padding  )

static

Definition at line 2780 of file matroskadec.c.

Referenced by matroska_parse_cluster(), and matroska_parse_cluster_incremental().

static int matroska_parse_cluster_incremental ( MatroskaDemuxContext *  matroska )

static

Definition at line 2913 of file matroskadec.c.

Referenced by matroska_parse_cluster().

static int matroska_parse_cluster ( MatroskaDemuxContext *  matroska )

static

Definition at line 2971 of file matroskadec.c.

Referenced by matroska_read_packet(), matroska_read_seek(), and webm_clusters_start_with_keyframe().

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

static

Definition at line 3001 of file matroskadec.c.

static int matroska_read_seek ( AVFormatContext *  s, int  stream_index, int64_t  timestamp, int  flags  )

static

Definition at line 3016 of file matroskadec.c.

static int matroska_read_close ( AVFormatContext *  s )

static

Definition at line 3095 of file matroskadec.c.

static CueDesc get_cue_desc ( AVFormatContext *  s, int64_t  ts, int64_t  cues_start  )

static

Definition at line 3123 of file matroskadec.c.

Referenced by buffer_size_after_time_downloaded(), and webm_dash_manifest_compute_bandwidth().

static int webm_clusters_start_with_keyframe ( AVFormatContext *  s )

static

Definition at line 3152 of file matroskadec.c.

Referenced by webm_dash_manifest_cues().

static int buffer_size_after_time_downloaded ( int64_t  time_ns, double  search_sec, int64_t  bps, double  min_buffer, double *  buffer, double *  sec_to_download, AVFormatContext *  s, int64_t  cues_start  )

static

Definition at line 3191 of file matroskadec.c.

Referenced by webm_dash_manifest_compute_bandwidth().

static int64_t webm_dash_manifest_compute_bandwidth ( AVFormatContext *  s, int64_t  cues_start  )

static

Definition at line 3272 of file matroskadec.c.

Referenced by webm_dash_manifest_cues().

static int webm_dash_manifest_cues ( AVFormatContext *  s )

static

Definition at line 3359 of file matroskadec.c.

Referenced by webm_dash_manifest_read_header().

static int webm_dash_manifest_read_header ( AVFormatContext *  s )

static

Definition at line 3423 of file matroskadec.c.

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

static

Definition at line 3457 of file matroskadec.c.

Variable Documentation

const EbmlSyntax ebml_header[]

static

Initial value:

= {
    { EBML_ID_EBMLREADVERSION,    EBML_UINT, 0, 0x42,         { .u = EBML_VERSION } },
    { EBML_ID_EBMLMAXSIZELENGTH,  EBML_UINT, 0, 0x42,        { .u = 8 } },
    { EBML_ID_EBMLMAXIDLENGTH,    EBML_UINT, 0, 0x42,       { .u = 4 } },
    { EBML_ID_DOCTYPE,            EBML_STR,  0, 0x42,         { .s = "(none)" } },
    { EBML_ID_DOCTYPEREADVERSION, EBML_UINT, 0, 0x42, { .u = 1 } },
    { EBML_ID_EBMLVERSION,        EBML_NONE },
    { EBML_ID_DOCTYPEVERSION,     EBML_NONE },
    { 0 }
}

Definition at line 327 of file matroskadec.c.

Referenced by mkv_write_header().

const EbmlSyntax ebml_syntax[]

static

Initial value:

= {
    { EBML_ID_HEADER, EBML_NEST, 0, 0, { .n = ebml_header } },
    { 0 }
}

Definition at line 338 of file matroskadec.c.

const EbmlSyntax matroska_info[]

static

Initial value:

= {
    { MATROSKA_ID_TIMECODESCALE, EBML_UINT,  0, 0x42, { .u = 1000000 } },
    { MATROSKA_ID_DURATION,      EBML_FLOAT, 0, 0x42 },
    { MATROSKA_ID_TITLE,         EBML_UTF8,  0, 0x42 },
    { MATROSKA_ID_WRITINGAPP,    EBML_NONE },
    { MATROSKA_ID_MUXINGAPP,     EBML_UTF8, 0, 0x42 },
    { MATROSKA_ID_DATEUTC,       EBML_BIN,  0, 0x42 },
    { MATROSKA_ID_SEGMENTUID,    EBML_NONE },
    { 0 }
}

Definition at line 343 of file matroskadec.c.

const EbmlSyntax matroska_track_video[]

static

Initial value:

= {
    { MATROSKA_ID_VIDEOFRAMERATE,      EBML_FLOAT, 0, 0x42 },
    { MATROSKA_ID_VIDEODISPLAYWIDTH,   EBML_UINT,  0, 0x42, { .u=-1 } },
    { MATROSKA_ID_VIDEODISPLAYHEIGHT,  EBML_UINT,  0, 0x42, { .u=-1 } },
    { MATROSKA_ID_VIDEOPIXELWIDTH,     EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_VIDEOPIXELHEIGHT,    EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_VIDEOCOLORSPACE,     EBML_BIN,   0, 0x42 },
    { MATROSKA_ID_VIDEOALPHAMODE,      EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_VIDEOPIXELCROPB,     EBML_NONE },
    { MATROSKA_ID_VIDEOPIXELCROPT,     EBML_NONE },
    { MATROSKA_ID_VIDEOPIXELCROPL,     EBML_NONE },
    { MATROSKA_ID_VIDEOPIXELCROPR,     EBML_NONE },
    { MATROSKA_ID_VIDEODISPLAYUNIT,    EBML_NONE },
    { MATROSKA_ID_VIDEOFLAGINTERLACED, EBML_NONE },
    { MATROSKA_ID_VIDEOSTEREOMODE,     EBML_UINT,  0, 0x42, { .u = MATROSKA_VIDEO_STEREOMODE_TYPE_NB } },
    { MATROSKA_ID_VIDEOASPECTRATIO,    EBML_NONE },
    { 0 }
}

Definition at line 354 of file matroskadec.c.

const EbmlSyntax matroska_track_audio[]

static

Initial value:

= {
    { MATROSKA_ID_AUDIOSAMPLINGFREQ,    EBML_FLOAT, 0, 0x42, { .f = 8000.0 } },
    { MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, EBML_FLOAT, 0, 0x42 },
    { MATROSKA_ID_AUDIOBITDEPTH,        EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_AUDIOCHANNELS,        EBML_UINT,  0, 0x42,   { .u = 1 } },
    { 0 }
}

Definition at line 373 of file matroskadec.c.

const EbmlSyntax matroska_track_encoding_compression[]

static

Initial value:

= {
    { MATROSKA_ID_ENCODINGCOMPALGO,     EBML_UINT, 0, 0x42, { .u = 0 } },
    { MATROSKA_ID_ENCODINGCOMPSETTINGS, EBML_BIN,  0, 0x42 },
    { 0 }
}

Definition at line 381 of file matroskadec.c.

const EbmlSyntax matroska_track_encoding_encryption[]

static

Initial value:

= {
    { MATROSKA_ID_ENCODINGENCALGO,        EBML_UINT, 0, 0x42, {.u = 0} },
    { MATROSKA_ID_ENCODINGENCKEYID,       EBML_BIN, 0, 0x42 },
    { MATROSKA_ID_ENCODINGENCAESSETTINGS, EBML_NONE },
    { MATROSKA_ID_ENCODINGSIGALGO,        EBML_NONE },
    { MATROSKA_ID_ENCODINGSIGHASHALGO,    EBML_NONE },
    { MATROSKA_ID_ENCODINGSIGKEYID,       EBML_NONE },
    { MATROSKA_ID_ENCODINGSIGNATURE,      EBML_NONE },
    { 0 }
}

Definition at line 387 of file matroskadec.c.

const EbmlSyntax matroska_track_encoding[]

static

Initial value:

= {
    { MATROSKA_ID_ENCODINGSCOPE,       EBML_UINT, 0, 0x42,       { .u = 1 } },
    { MATROSKA_ID_ENCODINGTYPE,        EBML_UINT, 0, 0x42,        { .u = 0 } },
    { MATROSKA_ID_ENCODINGCOMPRESSION, EBML_NEST, 0, 0x42, { .n = matroska_track_encoding_compression } },
    { MATROSKA_ID_ENCODINGENCRYPTION,  EBML_NEST, 0, 0x42,  { .n = matroska_track_encoding_encryption } },
    { MATROSKA_ID_ENCODINGORDER,       EBML_NONE },
    { 0 }
}

Definition at line 397 of file matroskadec.c.

const EbmlSyntax matroska_track_encodings[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKCONTENTENCODING, EBML_NEST, sizeof(MatroskaTrackEncoding), 0x42, { .n = matroska_track_encoding } },
    { 0 }
}

Definition at line 406 of file matroskadec.c.

const EbmlSyntax matroska_track_plane[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKPLANEUID,  EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_TRACKPLANETYPE, EBML_UINT, 0, 0x42 },
    { 0 }
}

Definition at line 411 of file matroskadec.c.

const EbmlSyntax matroska_track_combine_planes[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKPLANE, EBML_NEST, sizeof(MatroskaTrackPlane), 0x42, {.n = matroska_track_plane} },
    { 0 }
}

Definition at line 417 of file matroskadec.c.

const EbmlSyntax matroska_track_operation[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKCOMBINEPLANES, EBML_NEST, 0, 0, {.n = matroska_track_combine_planes} },
    { 0 }
}

Definition at line 422 of file matroskadec.c.

const EbmlSyntax matroska_track[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKNUMBER,           EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_TRACKNAME,             EBML_UTF8,  0, 0x42 },
    { MATROSKA_ID_TRACKUID,              EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_TRACKTYPE,             EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_CODECID,               EBML_STR,   0, 0x42 },
    { MATROSKA_ID_CODECPRIVATE,          EBML_BIN,   0, 0x42 },
    { MATROSKA_ID_CODECDELAY,            EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_TRACKLANGUAGE,         EBML_UTF8,  0, 0x42,     { .s = "eng" } },
    { MATROSKA_ID_TRACKDEFAULTDURATION,  EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_TRACKTIMECODESCALE,    EBML_FLOAT, 0, 0x42,   { .f = 1.0 } },
    { MATROSKA_ID_TRACKFLAGDEFAULT,      EBML_UINT,  0, 0x42, { .u = 1 } },
    { MATROSKA_ID_TRACKFLAGFORCED,       EBML_UINT,  0, 0x42,  { .u = 0 } },
    { MATROSKA_ID_TRACKVIDEO,            EBML_NEST,  0, 0x42,        { .n = matroska_track_video } },
    { MATROSKA_ID_TRACKAUDIO,            EBML_NEST,  0, 0x42,        { .n = matroska_track_audio } },
    { MATROSKA_ID_TRACKOPERATION,        EBML_NEST,  0, 0x42,    { .n = matroska_track_operation } },
    { MATROSKA_ID_TRACKCONTENTENCODINGS, EBML_NEST,  0, 0,                                     { .n = matroska_track_encodings } },
    { MATROSKA_ID_TRACKMAXBLKADDID,      EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_SEEKPREROLL,           EBML_UINT,  0, 0x42 },
    { MATROSKA_ID_TRACKFLAGENABLED,      EBML_NONE },
    { MATROSKA_ID_TRACKFLAGLACING,       EBML_NONE },
    { MATROSKA_ID_CODECNAME,             EBML_NONE },
    { MATROSKA_ID_CODECDECODEALL,        EBML_NONE },
    { MATROSKA_ID_CODECINFOURL,          EBML_NONE },
    { MATROSKA_ID_CODECDOWNLOADURL,      EBML_NONE },
    { MATROSKA_ID_TRACKMINCACHE,         EBML_NONE },
    { MATROSKA_ID_TRACKMAXCACHE,         EBML_NONE },
    { 0 }
}

Definition at line 427 of file matroskadec.c.

const EbmlSyntax matroska_tracks[]

static

Initial value:

= {
    { MATROSKA_ID_TRACKENTRY, EBML_NEST, sizeof(MatroskaTrack), 0x42, { .n = matroska_track } },
    { 0 }
}

Definition at line 457 of file matroskadec.c.

const EbmlSyntax matroska_attachment[]

static

Initial value:

= {
    { MATROSKA_ID_FILEUID,      EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_FILENAME,     EBML_UTF8, 0, 0x42 },
    { MATROSKA_ID_FILEMIMETYPE, EBML_STR,  0, 0x42 },
    { MATROSKA_ID_FILEDATA,     EBML_BIN,  0, 0x42 },
    { MATROSKA_ID_FILEDESC,     EBML_NONE },
    { 0 }
}

Definition at line 462 of file matroskadec.c.

const EbmlSyntax matroska_attachments[]

static

Initial value:

= {
    { MATROSKA_ID_ATTACHEDFILE, EBML_NEST, sizeof(MatroskaAttachment), 0x42, { .n = matroska_attachment } },
    { 0 }
}

Definition at line 471 of file matroskadec.c.

const EbmlSyntax matroska_chapter_display[]

static

Initial value:

= {
    { MATROSKA_ID_CHAPSTRING, EBML_UTF8, 0, 0x42 },
    { MATROSKA_ID_CHAPLANG,   EBML_NONE },
    { 0 }
}

Definition at line 476 of file matroskadec.c.

const EbmlSyntax matroska_chapter_entry[]

static

Initial value:

= {
    { MATROSKA_ID_CHAPTERTIMESTART,   EBML_UINT, 0, 0x42, { .u = AV_NOPTS_VALUE } },
    { MATROSKA_ID_CHAPTERTIMEEND,     EBML_UINT, 0, 0x42,   { .u = AV_NOPTS_VALUE } },
    { MATROSKA_ID_CHAPTERUID,         EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_CHAPTERDISPLAY,     EBML_NEST, 0,                        0,         { .n = matroska_chapter_display } },
    { MATROSKA_ID_CHAPTERFLAGHIDDEN,  EBML_NONE },
    { MATROSKA_ID_CHAPTERFLAGENABLED, EBML_NONE },
    { MATROSKA_ID_CHAPTERPHYSEQUIV,   EBML_NONE },
    { MATROSKA_ID_CHAPTERATOM,        EBML_NONE },
    { 0 }
}

Definition at line 482 of file matroskadec.c.

const EbmlSyntax matroska_chapter[]

static

Initial value:

= {
    { MATROSKA_ID_CHAPTERATOM,        EBML_NEST, sizeof(MatroskaChapter), 0x42, { .n = matroska_chapter_entry } },
    { MATROSKA_ID_EDITIONUID,         EBML_NONE },
    { MATROSKA_ID_EDITIONFLAGHIDDEN,  EBML_NONE },
    { MATROSKA_ID_EDITIONFLAGDEFAULT, EBML_NONE },
    { MATROSKA_ID_EDITIONFLAGORDERED, EBML_NONE },
    { 0 }
}

Definition at line 494 of file matroskadec.c.

const EbmlSyntax matroska_chapters[]

static

Initial value:

= {
    { MATROSKA_ID_EDITIONENTRY, EBML_NEST, 0, 0, { .n = matroska_chapter } },
    { 0 }
}

Definition at line 503 of file matroskadec.c.

const EbmlSyntax matroska_index_pos[]

static

Initial value:

= {
    { MATROSKA_ID_CUETRACK,           EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_CUECLUSTERPOSITION, EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_CUERELATIVEPOSITION,EBML_NONE },
    { MATROSKA_ID_CUEDURATION,        EBML_NONE },
    { MATROSKA_ID_CUEBLOCKNUMBER,     EBML_NONE },
    { 0 }
}

Definition at line 508 of file matroskadec.c.

const EbmlSyntax matroska_index_entry[]

static

Initial value:

= {
    { MATROSKA_ID_CUETIME,          EBML_UINT, 0,                        0x42 },
    { MATROSKA_ID_CUETRACKPOSITION, EBML_NEST, sizeof(MatroskaIndexPos), 0x42, { .n = matroska_index_pos } },
    { 0 }
}

Definition at line 517 of file matroskadec.c.

const EbmlSyntax matroska_index[]

static

Initial value:

= {
    { MATROSKA_ID_POINTENTRY, EBML_NEST, sizeof(MatroskaIndex), 0x42, { .n = matroska_index_entry } },
    { 0 }
}

Definition at line 523 of file matroskadec.c.

const EbmlSyntax matroska_simpletag[]

static

Initial value:

= {
    { MATROSKA_ID_TAGNAME,        EBML_UTF8, 0,                   0x42 },
    { MATROSKA_ID_TAGSTRING,      EBML_UTF8, 0,                   0x42 },
    { MATROSKA_ID_TAGLANG,        EBML_STR,  0,                   0x42, { .s = "und" } },
    { MATROSKA_ID_TAGDEFAULT,     EBML_UINT, 0,                   0x42 },
    { MATROSKA_ID_TAGDEFAULT_BUG, EBML_UINT, 0,                   0x42 },
    { MATROSKA_ID_SIMPLETAG,      EBML_NEST, sizeof(MatroskaTag), 0x42,  { .n = matroska_simpletag } },
    { 0 }
}

Definition at line 528 of file matroskadec.c.

const EbmlSyntax matroska_tagtargets[]

static

Initial value:

= {
    { MATROSKA_ID_TAGTARGETS_TYPE,       EBML_STR,  0, 0x42 },
    { MATROSKA_ID_TAGTARGETS_TYPEVALUE,  EBML_UINT, 0, 0x42, { .u = 50 } },
    { MATROSKA_ID_TAGTARGETS_TRACKUID,   EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_TAGTARGETS_CHAPTERUID, EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_TAGTARGETS_ATTACHUID,  EBML_UINT, 0, 0x42 },
    { 0 }
}

Definition at line 538 of file matroskadec.c.

const EbmlSyntax matroska_tag[]

static

Initial value:

= {
    { MATROSKA_ID_SIMPLETAG,  EBML_NEST, sizeof(MatroskaTag), 0x42,    { .n = matroska_simpletag } },
    { MATROSKA_ID_TAGTARGETS, EBML_NEST, 0,                   0x42, { .n = matroska_tagtargets } },
    { 0 }
}

Definition at line 547 of file matroskadec.c.

const EbmlSyntax matroska_tags[]

static

Initial value:

= {
    { MATROSKA_ID_TAG, EBML_NEST, sizeof(MatroskaTags), 0x42, { .n = matroska_tag } },
    { 0 }
}

Definition at line 553 of file matroskadec.c.

const EbmlSyntax matroska_seekhead_entry[]

static

Initial value:

= {
    { MATROSKA_ID_SEEKID,       EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_SEEKPOSITION, EBML_UINT, 0, 0x42, { .u = -1 } },
    { 0 }
}

Definition at line 558 of file matroskadec.c.

const EbmlSyntax matroska_seekhead[]

static

Initial value:

= {
    { MATROSKA_ID_SEEKENTRY, EBML_NEST, sizeof(MatroskaSeekhead), 0x42, { .n = matroska_seekhead_entry } },
    { 0 }
}

Definition at line 564 of file matroskadec.c.

const EbmlSyntax matroska_segment[]

static

Initial value:

= {
    { MATROSKA_ID_INFO,        EBML_LEVEL1, 0, 0, { .n = matroska_info } },
    { MATROSKA_ID_TRACKS,      EBML_LEVEL1, 0, 0, { .n = matroska_tracks } },
    { MATROSKA_ID_ATTACHMENTS, EBML_LEVEL1, 0, 0, { .n = matroska_attachments } },
    { MATROSKA_ID_CHAPTERS,    EBML_LEVEL1, 0, 0, { .n = matroska_chapters } },
    { MATROSKA_ID_CUES,        EBML_LEVEL1, 0, 0, { .n = matroska_index } },
    { MATROSKA_ID_TAGS,        EBML_LEVEL1, 0, 0, { .n = matroska_tags } },
    { MATROSKA_ID_SEEKHEAD,    EBML_LEVEL1, 0, 0, { .n = matroska_seekhead } },
    { MATROSKA_ID_CLUSTER,     EBML_STOP },
    { 0 }
}

Definition at line 569 of file matroskadec.c.

const EbmlSyntax matroska_segments[]

static

Initial value:

= {
    { MATROSKA_ID_SEGMENT, EBML_NEST, 0, 0, { .n = matroska_segment } },
    { 0 }
}

Definition at line 581 of file matroskadec.c.

const EbmlSyntax matroska_blockmore[]

static

Initial value:

= {
    { MATROSKA_ID_BLOCKADDID,      EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_BLOCKADDITIONAL, EBML_BIN,  0, 0x42 },
    { 0 }
}

Definition at line 586 of file matroskadec.c.

const EbmlSyntax matroska_blockadditions[]

static

Initial value:

= {
    { MATROSKA_ID_BLOCKMORE, EBML_NEST, 0, 0, {.n = matroska_blockmore} },
    { 0 }
}

Definition at line 592 of file matroskadec.c.

const EbmlSyntax matroska_blockgroup[]

static

Initial value:

= {
    { MATROSKA_ID_BLOCK,          EBML_BIN,  0, 0x42 },
    { MATROSKA_ID_BLOCKADDITIONS, EBML_NEST, 0, 0, { .n = matroska_blockadditions} },
    { MATROSKA_ID_SIMPLEBLOCK,    EBML_BIN,  0, 0x42 },
    { MATROSKA_ID_BLOCKDURATION,  EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_DISCARDPADDING, EBML_SINT, 0, 0x42 },
    { MATROSKA_ID_BLOCKREFERENCE, EBML_SINT, 0, 0x42 },
    { MATROSKA_ID_CODECSTATE,     EBML_NONE },
    {                          1, EBML_UINT, 0, 0x42, { .u = 1 } },
    { 0 }
}

Definition at line 597 of file matroskadec.c.

const EbmlSyntax matroska_cluster[]

static

Initial value:

= {
    { MATROSKA_ID_CLUSTERTIMECODE, EBML_UINT, 0,                     0x42 },
    { MATROSKA_ID_BLOCKGROUP,      EBML_NEST, sizeof(MatroskaBlock), 0x42, { .n = matroska_blockgroup } },
    { MATROSKA_ID_SIMPLEBLOCK,     EBML_PASS, sizeof(MatroskaBlock), 0x42, { .n = matroska_blockgroup } },
    { MATROSKA_ID_CLUSTERPOSITION, EBML_NONE },
    { MATROSKA_ID_CLUSTERPREVSIZE, EBML_NONE },
    { 0 }
}

Definition at line 609 of file matroskadec.c.

const EbmlSyntax matroska_clusters[]

static

Initial value:

= {
    { MATROSKA_ID_CLUSTER,  EBML_NEST, 0, 0, { .n = matroska_cluster } },
    { MATROSKA_ID_INFO,     EBML_NONE },
    { MATROSKA_ID_CUES,     EBML_NONE },
    { MATROSKA_ID_TAGS,     EBML_NONE },
    { MATROSKA_ID_SEEKHEAD, EBML_NONE },
    { 0 }
}

Definition at line 618 of file matroskadec.c.

const EbmlSyntax matroska_cluster_incremental_parsing[]

static

Initial value:

= {
    { MATROSKA_ID_CLUSTERTIMECODE, EBML_UINT, 0,                     0x42 },
    { MATROSKA_ID_BLOCKGROUP,      EBML_NEST, sizeof(MatroskaBlock), 0x42, { .n = matroska_blockgroup } },
    { MATROSKA_ID_SIMPLEBLOCK,     EBML_PASS, sizeof(MatroskaBlock), 0x42, { .n = matroska_blockgroup } },
    { MATROSKA_ID_CLUSTERPOSITION, EBML_NONE },
    { MATROSKA_ID_CLUSTERPREVSIZE, EBML_NONE },
    { MATROSKA_ID_INFO,            EBML_NONE },
    { MATROSKA_ID_CUES,            EBML_NONE },
    { MATROSKA_ID_TAGS,            EBML_NONE },
    { MATROSKA_ID_SEEKHEAD,        EBML_NONE },
    { MATROSKA_ID_CLUSTER,         EBML_STOP },
    { 0 }
}

Definition at line 627 of file matroskadec.c.

const EbmlSyntax matroska_cluster_incremental[]

static

Initial value:

= {
    { MATROSKA_ID_CLUSTERTIMECODE, EBML_UINT, 0, 0x42 },
    { MATROSKA_ID_BLOCKGROUP,      EBML_STOP },
    { MATROSKA_ID_SIMPLEBLOCK,     EBML_STOP },
    { MATROSKA_ID_CLUSTERPOSITION, EBML_NONE },
    { MATROSKA_ID_CLUSTERPREVSIZE, EBML_NONE },
    { 0 }
}

Definition at line 641 of file matroskadec.c.

const EbmlSyntax matroska_clusters_incremental[]

static

Initial value:

= {
    { MATROSKA_ID_CLUSTER,  EBML_NEST, 0, 0, { .n = matroska_cluster_incremental } },
    { MATROSKA_ID_INFO,     EBML_NONE },
    { MATROSKA_ID_CUES,     EBML_NONE },
    { MATROSKA_ID_TAGS,     EBML_NONE },
    { MATROSKA_ID_SEEKHEAD, EBML_NONE },
    { 0 }
}

Definition at line 650 of file matroskadec.c.

const char* const matroska_doctypes[] = { "matroska", "webm" }

static

Definition at line 659 of file matroskadec.c.

Referenced by matroska_probe(), and matroska_read_header().

const AVOption options[]

static

Initial value:

= {
    { "live", "flag indicating that the input is a live file that only has the headers.", OFFSET(is_live), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
    { NULL },
}

Definition at line 3463 of file matroskadec.c.

const AVClass webm_dash_class

static

Initial value:

= {
    .class_name = "WebM DASH Manifest demuxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 3468 of file matroskadec.c.

AVInputFormat ff_matroska_demuxer

Initial value:

= {
    .name           = "matroska,webm",
    .long_name      = NULL_IF_CONFIG_SMALL("Matroska / WebM"),
    .extensions     = "mkv,mk3d,mka,mks",
    .priv_data_size = sizeof(MatroskaDemuxContext),
    .read_probe     = matroska_probe,
    .read_header    = matroska_read_header,
    .read_packet    = matroska_read_packet,
    .read_close     = matroska_read_close,
    .read_seek      = matroska_read_seek,
    .mime_type      = "audio/webm,audio/x-matroska,video/webm,video/x-matroska"
}

Definition at line 3475 of file matroskadec.c.

AVInputFormat ff_webm_dash_manifest_demuxer

Initial value:

= {
    .name           = "webm_dash_manifest",
    .long_name      = NULL_IF_CONFIG_SMALL("WebM DASH Manifest"),
    .priv_data_size = sizeof(MatroskaDemuxContext),
    .read_header    = webm_dash_manifest_read_header,
    .read_packet    = webm_dash_manifest_read_packet,
    .read_close     = matroska_read_close,
    .priv_class     = &webm_dash_class,
}

Definition at line 3488 of file matroskadec.c.