libavformat/matroskadec.c File Reference

Matroska file demuxer by Ronald Bultje <rbultje@ronald.bitfreak.net> with a little help from Moritz Bunkus <moritz@bunkus.org> Specs available on the matroska project page: http://www.matroska.org/. More...

#include "avformat.h"
#include "riff.h"
#include "intfloat_readwrite.h"
#include "matroska.h"

Go to the source code of this file.

Data Structures

struct Track

struct MatroskaVideoTrack

struct MatroskaAudioTrack

struct MatroskaSubtitleTrack

struct MatroskaLevel

struct MatroskaDemuxIndex

struct MatroskaDemuxContext

Defines

#define MAX_TRACK_SIZE

#define ARRAY_SIZE(x) (sizeof(x)/sizeof(*x))

Typedefs

typedef struct Track MatroskaTrack

Functions

static int ebml_read_element_level_up (MatroskaDemuxContext *matroska)

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

static int ebml_read_element_id (MatroskaDemuxContext *matroska, uint32_t *id, int *level_up)

static int ebml_read_element_length (MatroskaDemuxContext *matroska, uint64_t *length)

static uint32_t ebml_peek_id (MatroskaDemuxContext *matroska, int *level_up)

static int ebml_read_seek (MatroskaDemuxContext *matroska, offset_t offset)

static int ebml_read_skip (MatroskaDemuxContext *matroska)

static int ebml_read_uint (MatroskaDemuxContext *matroska, uint32_t *id, uint64_t *num)

static int ebml_read_sint (MatroskaDemuxContext *matroska, uint32_t *id, int64_t *num)

static int ebml_read_float (MatroskaDemuxContext *matroska, uint32_t *id, double *num)

static int ebml_read_ascii (MatroskaDemuxContext *matroska, uint32_t *id, char **str)

static int ebml_read_utf8 (MatroskaDemuxContext *matroska, uint32_t *id, char **str)

static int ebml_read_date (MatroskaDemuxContext *matroska, uint32_t *id, int64_t *date)

static int ebml_read_master (MatroskaDemuxContext *matroska, uint32_t *id)

static int ebml_read_binary (MatroskaDemuxContext *matroska, uint32_t *id, uint8_t **binary, int *size)

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

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

static int ebml_read_header (MatroskaDemuxContext *matroska, char **doctype, int *version)

static int matroska_find_track_by_num (MatroskaDemuxContext *matroska, int num)

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

static void matroska_queue_packet (MatroskaDemuxContext *matroska, AVPacket *pkt)

static void matroska_clear_queue (MatroskaDemuxContext *matroska)

static int matroska_probe (AVProbeData *p)

static int matroska_parse_info (MatroskaDemuxContext *matroska)

static int matroska_add_stream (MatroskaDemuxContext *matroska)

static int matroska_parse_tracks (MatroskaDemuxContext *matroska)

static int matroska_parse_index (MatroskaDemuxContext *matroska)

static int matroska_parse_metadata (MatroskaDemuxContext *matroska)

static int matroska_parse_seekhead (MatroskaDemuxContext *matroska)

static int matroska_parse_attachments (AVFormatContext *s)

static int matroska_aac_profile (char *codec_id)

static int matroska_aac_sri (int samplerate)

static int matroska_read_header (AVFormatContext *s, AVFormatParameters *ap)

static int matroska_parse_block (MatroskaDemuxContext *matroska, uint8_t *data, int size, int64_t pos, uint64_t cluster_time, uint64_t duration, int is_keyframe, int is_bframe)

static int matroska_parse_blockgroup (MatroskaDemuxContext *matroska, uint64_t cluster_time)

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)

Variables

AVInputFormat matroska_demuxer

Detailed Description

Matroska file demuxer by Ronald Bultje <rbultje@ronald.bitfreak.net> with a little help from Moritz Bunkus <moritz@bunkus.org> Specs available on the matroska project page: http://www.matroska.org/.

Definition in file matroskadec.c.

Define Documentation

#define ARRAY_SIZE ( x ) (sizeof(x)/sizeof(*x))

Definition at line 1981 of file matroskadec.c.

Referenced by matroska_aac_profile(), and matroska_aac_sri().

#define MAX_TRACK_SIZE

Value:

(FFMAX(FFMAX(sizeof(MatroskaVideoTrack), \
                                    sizeof(MatroskaAudioTrack)), \
                                    sizeof(MatroskaSubtitleTrack)))

Definition at line 100 of file matroskadec.c.

Referenced by matroska_add_stream().

Typedef Documentation

typedef struct Track MatroskaTrack

Function Documentation

static uint32_t ebml_peek_id	(	MatroskaDemuxContext *	matroska,
		int *	level_up
	)			`[static]`

Definition at line 306 of file matroskadec.c.

Referenced by ebml_read_header(), matroska_add_stream(), matroska_parse_attachments(), matroska_parse_blockgroup(), matroska_parse_cluster(), matroska_parse_index(), matroska_parse_info(), matroska_parse_metadata(), matroska_parse_seekhead(), matroska_parse_tracks(), matroska_read_header(), and matroska_read_packet().

static int ebml_read_ascii	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		char **	str
	)			`[static]`

Definition at line 469 of file matroskadec.c.

Referenced by ebml_read_header(), ebml_read_utf8(), matroska_add_stream(), and matroska_parse_attachments().

static int ebml_read_binary	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		uint8_t **	binary,
		int *	size
	)			`[static]`

Definition at line 565 of file matroskadec.c.

Referenced by matroska_add_stream(), matroska_parse_attachments(), matroska_parse_blockgroup(), and matroska_parse_cluster().

static int ebml_read_date	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		int64_t *	date
	)			`[static]`

Definition at line 518 of file matroskadec.c.

Referenced by matroska_parse_info().

static int ebml_read_element_id	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		int *	level_up
	)			`[static]`

Definition at line 256 of file matroskadec.c.

Referenced by ebml_peek_id(), ebml_read_ascii(), ebml_read_binary(), ebml_read_float(), ebml_read_master(), ebml_read_sint(), ebml_read_skip(), and ebml_read_uint().

static int ebml_read_element_length	(	MatroskaDemuxContext *	matroska,
		uint64_t *	length
	)			`[static]`

Definition at line 289 of file matroskadec.c.

Referenced by ebml_read_ascii(), ebml_read_binary(), ebml_read_float(), ebml_read_master(), ebml_read_sint(), ebml_read_skip(), and ebml_read_uint().

static int ebml_read_element_level_up ( MatroskaDemuxContext * matroska ) [static]

Definition at line 175 of file matroskadec.c.

Referenced by ebml_read_element_id().

static int ebml_read_float	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		double *	num
	)			`[static]`

Definition at line 435 of file matroskadec.c.

Referenced by matroska_add_stream(), and matroska_parse_info().

static int ebml_read_header	(	MatroskaDemuxContext *	matroska,
		char **	doctype,
		int *	version
	)			`[static]`

Definition at line 670 of file matroskadec.c.

Referenced by matroska_read_header().

static int ebml_read_master	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id
	)			`[static]`

Definition at line 532 of file matroskadec.c.

Referenced by ebml_read_header(), matroska_add_stream(), matroska_parse_attachments(), matroska_parse_cluster(), matroska_parse_index(), matroska_parse_seekhead(), matroska_read_header(), and matroska_read_packet().

static int ebml_read_num	(	MatroskaDemuxContext *	matroska,
		int	max_size,
		uint64_t *	number
	)			`[static]`

Definition at line 205 of file matroskadec.c.

Referenced by ebml_read_element_id(), and ebml_read_element_length().

static int ebml_read_seek	(	MatroskaDemuxContext *	matroska,
		offset_t	offset
	)			`[static]`

Definition at line 323 of file matroskadec.c.

Referenced by matroska_parse_seekhead().

static int ebml_read_sint	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		int64_t *	num
	)			`[static]`

Definition at line 396 of file matroskadec.c.

Referenced by ebml_read_date(), and matroska_parse_blockgroup().

static int ebml_read_skip ( MatroskaDemuxContext * matroska ) [static]

Definition at line 340 of file matroskadec.c.

Referenced by ebml_read_header(), matroska_add_stream(), matroska_parse_attachments(), matroska_parse_blockgroup(), matroska_parse_cluster(), matroska_parse_index(), matroska_parse_info(), matroska_parse_metadata(), matroska_parse_seekhead(), matroska_parse_tracks(), matroska_read_header(), and matroska_read_packet().

static int ebml_read_uint	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		uint64_t *	num
	)			`[static]`

Definition at line 362 of file matroskadec.c.

Referenced by ebml_read_header(), matroska_add_stream(), matroska_parse_blockgroup(), matroska_parse_cluster(), matroska_parse_index(), matroska_parse_info(), and matroska_parse_seekhead().

static int ebml_read_utf8	(	MatroskaDemuxContext *	matroska,
		uint32_t *	id,
		char **	str
	)			`[static]`

Definition at line 505 of file matroskadec.c.

Referenced by matroska_add_stream(), matroska_parse_attachments(), and matroska_parse_info().

static int matroska_aac_profile ( char * codec_id ) [static]

Definition at line 1984 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_aac_sri ( int samplerate ) [static]

Definition at line 1998 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_add_stream ( MatroskaDemuxContext * matroska ) [static]

Definition at line 1001 of file matroskadec.c.

Referenced by matroska_parse_tracks().

static void matroska_clear_queue ( MatroskaDemuxContext * matroska ) [static]

Definition at line 851 of file matroskadec.c.

Referenced by matroska_read_close(), and matroska_read_seek().

static int matroska_deliver_packet	(	MatroskaDemuxContext *	matroska,
		AVPacket *	pkt
	)			`[static]`

Definition at line 809 of file matroskadec.c.

Referenced by matroska_read_packet().

static int matroska_ebmlnum_sint	(	uint8_t *	data,
		uint32_t	size,
		int64_t *	num
	)			`[static]`

Definition at line 644 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_ebmlnum_uint	(	uint8_t *	data,
		uint32_t	size,
		uint64_t *	num
	)			`[static]`

Definition at line 602 of file matroskadec.c.

Referenced by matroska_ebmlnum_sint(), and matroska_parse_block().

static int matroska_find_track_by_num	(	MatroskaDemuxContext *	matroska,
		int	num
	)			`[static]`

Definition at line 790 of file matroskadec.c.

Referenced by matroska_parse_block(), and matroska_read_header().

static int matroska_parse_attachments ( AVFormatContext * s ) [static]

Definition at line 1869 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_parse_block	(	MatroskaDemuxContext *	matroska,
		uint8_t *	data,
		int	size,
		int64_t	pos,
		uint64_t	cluster_time,
		uint64_t	duration,
		int	is_keyframe,
		int	is_bframe
	)			`[static]`

Definition at line 2367 of file matroskadec.c.

Referenced by matroska_parse_blockgroup(), and matroska_parse_cluster().

static int matroska_parse_blockgroup	(	MatroskaDemuxContext *	matroska,
		uint64_t	cluster_time
	)			`[static]`

Definition at line 2583 of file matroskadec.c.

Referenced by matroska_parse_cluster().

static int matroska_parse_cluster ( MatroskaDemuxContext * matroska ) [static]

Definition at line 2663 of file matroskadec.c.

Referenced by matroska_read_packet().

static int matroska_parse_index ( MatroskaDemuxContext * matroska ) [static]

Definition at line 1497 of file matroskadec.c.

Referenced by matroska_parse_seekhead(), and matroska_read_header().

static int matroska_parse_info ( MatroskaDemuxContext * matroska ) [static]

Definition at line 913 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_parse_metadata ( MatroskaDemuxContext * matroska ) [static]

Definition at line 1655 of file matroskadec.c.

Referenced by matroska_parse_seekhead(), and matroska_read_header().

static int matroska_parse_seekhead ( MatroskaDemuxContext * matroska ) [static]

Definition at line 1691 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_parse_tracks ( MatroskaDemuxContext * matroska ) [static]

Definition at line 1455 of file matroskadec.c.

Referenced by matroska_read_header().

static int matroska_probe ( AVProbeData * p ) [static]

Definition at line 871 of file matroskadec.c.

static void matroska_queue_packet	(	MatroskaDemuxContext *	matroska,
		AVPacket *	pkt
	)			`[static]`

Definition at line 837 of file matroskadec.c.

Referenced by matroska_parse_block().

static int matroska_read_close ( AVFormatContext * s ) [static]

Definition at line 2804 of file matroskadec.c.

static int matroska_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			`[static]`

Definition at line 2013 of file matroskadec.c.

static int matroska_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			`[static]`

Definition at line 2730 of file matroskadec.c.

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

Definition at line 2781 of file matroskadec.c.

Variable Documentation

AVInputFormat matroska_demuxer

Initial value:

 {
    "matroska",
    "Matroska file format",
    sizeof(MatroskaDemuxContext),
    matroska_probe,
    matroska_read_header,
    matroska_read_packet,
    matroska_read_close,
    matroska_read_seek,
}

Definition at line 2833 of file matroskadec.c.


Data Structures
struct	Track
struct	MatroskaVideoTrack
struct	MatroskaAudioTrack
struct	MatroskaSubtitleTrack
struct	MatroskaLevel
struct	MatroskaDemuxIndex
struct	MatroskaDemuxContext
Defines
#define	MAX_TRACK_SIZE
#define	ARRAY_SIZE(x) (sizeof(x)/sizeof(*x))
Typedefs
typedef struct Track	MatroskaTrack
Functions
static int	ebml_read_element_level_up (MatroskaDemuxContext *matroska)
static int	ebml_read_num (MatroskaDemuxContext matroska, int max_size, uint64_t number)
static int	ebml_read_element_id (MatroskaDemuxContext matroska, uint32_t id, int *level_up)
static int	ebml_read_element_length (MatroskaDemuxContext matroska, uint64_t length)
static uint32_t	ebml_peek_id (MatroskaDemuxContext matroska, int level_up)
static int	ebml_read_seek (MatroskaDemuxContext *matroska, offset_t offset)
static int	ebml_read_skip (MatroskaDemuxContext *matroska)
static int	ebml_read_uint (MatroskaDemuxContext matroska, uint32_t id, uint64_t *num)
static int	ebml_read_sint (MatroskaDemuxContext matroska, uint32_t id, int64_t *num)
static int	ebml_read_float (MatroskaDemuxContext matroska, uint32_t id, double *num)
static int	ebml_read_ascii (MatroskaDemuxContext matroska, uint32_t id, char **str)
static int	ebml_read_utf8 (MatroskaDemuxContext matroska, uint32_t id, char **str)
static int	ebml_read_date (MatroskaDemuxContext matroska, uint32_t id, int64_t *date)
static int	ebml_read_master (MatroskaDemuxContext matroska, uint32_t id)
static int	ebml_read_binary (MatroskaDemuxContext matroska, uint32_t id, uint8_t *binary, int size)
static int	matroska_ebmlnum_uint (uint8_t data, uint32_t size, uint64_t num)
static int	matroska_ebmlnum_sint (uint8_t data, uint32_t size, int64_t num)
static int	ebml_read_header (MatroskaDemuxContext matroska, char doctype, int version)
static int	matroska_find_track_by_num (MatroskaDemuxContext *matroska, int num)
static int	matroska_deliver_packet (MatroskaDemuxContext matroska, AVPacket pkt)
static void	matroska_queue_packet (MatroskaDemuxContext matroska, AVPacket pkt)
static void	matroska_clear_queue (MatroskaDemuxContext *matroska)
static int	matroska_probe (AVProbeData *p)
static int	matroska_parse_info (MatroskaDemuxContext *matroska)
static int	matroska_add_stream (MatroskaDemuxContext *matroska)
static int	matroska_parse_tracks (MatroskaDemuxContext *matroska)
static int	matroska_parse_index (MatroskaDemuxContext *matroska)
static int	matroska_parse_metadata (MatroskaDemuxContext *matroska)
static int	matroska_parse_seekhead (MatroskaDemuxContext *matroska)
static int	matroska_parse_attachments (AVFormatContext *s)
static int	matroska_aac_profile (char *codec_id)
static int	matroska_aac_sri (int samplerate)
static int	matroska_read_header (AVFormatContext s, AVFormatParameters ap)
static int	matroska_parse_block (MatroskaDemuxContext matroska, uint8_t data, int size, int64_t pos, uint64_t cluster_time, uint64_t duration, int is_keyframe, int is_bframe)
static int	matroska_parse_blockgroup (MatroskaDemuxContext *matroska, uint64_t cluster_time)
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)
Variables
AVInputFormat	matroska_demuxer