Windows Television (WTV) demuxer. More...

#include "libavutil/intreadwrite.h"
#include "libavutil/avassert.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "wtv.h"
#include "asf.h"

Go to the source code of this file.

Data Structures
struct	WtvFile

struct	WtvChunkEntry

struct	WtvSyncEntry

struct	WtvContext

struct	WTVRootEntryTable

Macros
#define	WTV_BIGSECTOR_SIZE (1 << WTV_BIGSECTOR_BITS)

#define	INDEX_BASE 0x2

#define	MAX_NB_INDEX 10

#define	_ , 0,

#define	write_pad(pb, size) ffio_fill(pb, 0, size)

Typedefs
typedef int	WTVHeaderWriteFunc (AVIOContext *pb)

Enumerations
enum	WtvFileIndex { WTV_TIMELINE_TABLE_0_HEADER_EVENTS = 0, WTV_TIMELINE_TABLE_0_ENTRIES_EVENTS, WTV_TIMELINE, WTV_TABLE_0_HEADER_LEGACY_ATTRIB, WTV_TABLE_0_ENTRIES_LEGACY_ATTRIB, WTV_TABLE_0_REDIRECTOR_LEGACY_ATTRIB, WTV_TABLE_0_HEADER_TIME, WTV_TABLE_0_ENTRIES_TIME, WTV_FILES }

Functions
static void	add_serial_pair (WtvSyncEntry *list, int count, int64_t serial, int64_t value)

static const ff_asf_guid *	get_codec_guid (enum AVCodecID id, const AVCodecGuid *av_guid)

static void	write_chunk_header (AVFormatContext s, const ff_asf_guid guid, int length, int stream_id)
	Write chunk header.

static void	write_chunk_header2 (AVFormatContext s, const ff_asf_guid guid, int stream_id)

static void	finish_chunk_noindex (AVFormatContext *s)

static void	write_index (AVFormatContext *s)

static void	finish_chunk (AVFormatContext *s)

static void	put_videoinfoheader2 (AVIOContext pb, AVStream st)

static int	write_stream_codec_info (AVFormatContext s, AVStream st)

static int	write_stream_codec (AVFormatContext s, AVStream st)

static void	write_sync (AVFormatContext *s)

static int	write_stream_data (AVFormatContext s, AVStream st)

static int	write_header (AVFormatContext *s)

static void	write_timestamp (AVFormatContext s, AVPacket pkt)

static int	write_packet (AVFormatContext s, AVPacket pkt)

static int	write_table0_header_events (AVIOContext *pb)

static int	write_table0_header_legacy_attrib (AVIOContext *pb)

static int	write_table0_header_time (AVIOContext *pb)

static int	write_root_table (AVFormatContext *s, int64_t sector_pos)

static void	write_fat (AVIOContext *pb, int start_sector, int nb_sectors, int shift)

static int64_t	write_fat_sector (AVFormatContext *s, int64_t start_pos, int nb_sectors, int sector_bits, int depth)

static void	write_table_entries_events (AVFormatContext *s)

static void	write_table_entries_time (AVFormatContext *s)

static void	write_metadata_header (AVIOContext pb, int type, const char key, int value_size)

static int	metadata_header_size (const char *key)

static void	write_tag_int32 (AVIOContext pb, const char key, int value)

static void	write_tag (AVIOContext pb, const char key, const char *value)

static int	attachment_value_size (const AVPacket pkt, const AVDictionaryEntry e)

static void	write_table_entries_attrib (AVFormatContext *s)

static void	write_table_redirector_legacy_attrib (AVFormatContext *s)

static int	finish_file (AVFormatContext *s, enum WtvFileIndex index, int64_t start_pos)
	Pad the remainder of a file Write out fat table.

static int	write_trailer (AVFormatContext *s)

Variables
static const uint8_t	timeline_table_0_header_events []

static const uint8_t	table_0_header_legacy_attrib []

static const uint8_t	table_0_redirector_legacy_attrib []

static const uint8_t	table_0_header_time []

static const uint8_t	legacy_attrib []

static const ff_asf_guid	sub_wtv_guid

static const WTVRootEntryTable	wtv_root_entry_table []

AVOutputFormat	ff_wtv_muxer

Detailed Description

Windows Television (WTV) demuxer.

Author: Zhentan Feng <spyfeng at="" gmail="" dot="" com>="">

Definition in file wtvenc.c.

Macro Definition Documentation

#define WTV_BIGSECTOR_SIZE (1 << WTV_BIGSECTOR_BITS)

Definition at line 36 of file wtvenc.c.

Referenced by finish_file().

#define INDEX_BASE 0x2

Definition at line 37 of file wtvenc.c.

Referenced by write_packet(), write_stream_data(), and write_timestamp().

#define MAX_NB_INDEX 10

Definition at line 38 of file wtvenc.c.

Referenced by finish_chunk(), and write_chunk_header().

#define _ , 0,

Definition at line 41 of file wtvenc.c.

#define write_pad	(	pb,
		size
	)	ffio_fill(pb, 0, size)

Definition at line 131 of file wtvenc.c.

Referenced by finish_chunk_noindex(), finish_file(), write_fat(), write_header(), write_packet(), write_root_table(), write_stream_codec(), write_stream_codec_info(), write_stream_data(), write_table0_header_events(), write_table0_header_legacy_attrib(), write_table0_header_time(), and write_timestamp().

Typedef Documentation

typedef int WTVHeaderWriteFunc(AVIOContext *pb)

Definition at line 123 of file wtvenc.c.

Enumeration Type Documentation

enum WtvFileIndex

Enumerator:

WTV_TIMELINE_TABLE_0_HEADER_EVENTS
WTV_TIMELINE_TABLE_0_ENTRIES_EVENTS
WTV_TIMELINE
WTV_TABLE_0_HEADER_LEGACY_ATTRIB
WTV_TABLE_0_ENTRIES_LEGACY_ATTRIB
WTV_TABLE_0_REDIRECTOR_LEGACY_ATTRIB
WTV_TABLE_0_HEADER_TIME
WTV_TABLE_0_ENTRIES_TIME
WTV_FILES

Definition at line 57 of file wtvenc.c.

Function Documentation

static void add_serial_pair	(	WtvSyncEntry **	list,
		int *	count,
		int64_t	serial,
		int64_t	value
	)

static

Definition at line 112 of file wtvenc.c.

Referenced by write_packet(), and write_sync().

static const ff_asf_guid* get_codec_guid	(	enum AVCodecID	id,
		const AVCodecGuid *	av_guid
	)

static

Definition at line 133 of file wtvenc.c.

Referenced by write_stream_codec_info().

static void write_chunk_header	(	AVFormatContext *	s,
		const ff_asf_guid *	guid,
		int	length,
		int	stream_id
	)

static

Write chunk header.

If header chunk (0x80000000 set) then add to list of header chunks

Definition at line 146 of file wtvenc.c.

Referenced by write_chunk_header2(), write_packet(), write_sync(), and write_timestamp().

static void write_chunk_header2	(	AVFormatContext *	s,
		const ff_asf_guid *	guid,
		int	stream_id
	)

static

Definition at line 168 of file wtvenc.c.

Referenced by write_index(), write_stream_codec(), and write_stream_data().

static void finish_chunk_noindex ( AVFormatContext * s )

static

Definition at line 178 of file wtvenc.c.

Referenced by finish_chunk(), and write_index().

static void write_index ( AVFormatContext * s )

static

Definition at line 193 of file wtvenc.c.

Referenced by finish_chunk(), and write_header().

static void finish_chunk ( AVFormatContext * s )

static

Definition at line 218 of file wtvenc.c.

Referenced by write_stream_codec(), write_stream_data(), and write_sync().

static void put_videoinfoheader2	(	AVIOContext *	pb,
		AVStream *	st
	)

static

Definition at line 226 of file wtvenc.c.

Referenced by write_stream_codec_info().

static int write_stream_codec_info	(	AVFormatContext *	s,
		AVStream *	st
	)

static

Definition at line 268 of file wtvenc.c.

Referenced by write_stream_codec(), and write_stream_data().

static int write_stream_codec	(	AVFormatContext *	s,
		AVStream *	st
	)

static

Definition at line 317 of file wtvenc.c.

Referenced by write_header().

static void write_sync ( AVFormatContext * s )

static

Definition at line 337 of file wtvenc.c.

Referenced by write_header(), and write_packet().

static int write_stream_data	(	AVFormatContext *	s,
		AVStream *	st
	)

static

Definition at line 354 of file wtvenc.c.

Referenced by write_header().

static int write_header ( AVFormatContext * s )

static

Definition at line 377 of file wtvenc.c.

static void write_timestamp	(	AVFormatContext *	s,
		AVPacket *	pkt
	)

static

Definition at line 442 of file wtvenc.c.

Referenced by write_packet().

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

static

Definition at line 460 of file wtvenc.c.

static int write_table0_header_events ( AVIOContext * pb )

static

Definition at line 494 of file wtvenc.c.

static int write_table0_header_legacy_attrib ( AVIOContext * pb )

static

Definition at line 502 of file wtvenc.c.

static int write_table0_header_time ( AVIOContext * pb )

static

Definition at line 514 of file wtvenc.c.

static int write_root_table	(	AVFormatContext *	s,
		int64_t	sector_pos
	)

static

Definition at line 533 of file wtvenc.c.

Referenced by write_trailer().

static void write_fat	(	AVIOContext *	pb,
		int	start_sector,
		int	nb_sectors,
		int	shift
	)

static

Definition at line 580 of file wtvenc.c.

Referenced by write_fat_sector().

static int64_t write_fat_sector	(	AVFormatContext *	s,
		int64_t	start_pos,
		int	nb_sectors,
		int	sector_bits,
		int	depth
	)

static

Definition at line 590 of file wtvenc.c.

Referenced by finish_file().

static void write_table_entries_events ( AVFormatContext * s )

static

Definition at line 610 of file wtvenc.c.

Referenced by write_trailer().

static void write_table_entries_time ( AVFormatContext * s )

static

Definition at line 621 of file wtvenc.c.

Referenced by write_trailer().

static void write_metadata_header	(	AVIOContext *	pb,
		int	type,
		const char *	key,
		int	value_size
	)

static

Definition at line 634 of file wtvenc.c.

Referenced by write_table_entries_attrib(), write_tag(), and write_tag_int32().

static int metadata_header_size ( const char * key )

static

Definition at line 642 of file wtvenc.c.

Referenced by write_table_redirector_legacy_attrib().

static void write_tag_int32	(	AVIOContext *	pb,
		const char *	key,
		int	value
	)

static

Definition at line 647 of file wtvenc.c.

Referenced by write_table_entries_attrib().

static void write_tag	(	AVIOContext *	pb,
		const char *	key,
		const char *	value
	)

static

Definition at line 653 of file wtvenc.c.

Referenced by write_table_entries_attrib().

static int attachment_value_size	(	const AVPacket *	pkt,
		const AVDictionaryEntry *	e
	)

static

Definition at line 659 of file wtvenc.c.

Referenced by write_table_entries_attrib(), and write_table_redirector_legacy_attrib().

static void write_table_entries_attrib ( AVFormatContext * s )

static

Definition at line 664 of file wtvenc.c.

Referenced by write_trailer().

static void write_table_redirector_legacy_attrib ( AVFormatContext * s )

static

Definition at line 691 of file wtvenc.c.

Referenced by write_trailer().

static int finish_file	(	AVFormatContext *	s,
		enum WtvFileIndex	index,
		int64_t	start_pos
	)

static

Pad the remainder of a file Write out fat table.

Returns: <0 on error

Definition at line 719 of file wtvenc.c.

Referenced by write_trailer().

static int write_trailer ( AVFormatContext * s )

static

Definition at line 776 of file wtvenc.c.

Variable Documentation

const uint8_t timeline_table_0_header_events[]

static

Initial value:

=

{'t'_'i'_'m'_'e'_'l'_'i'_'n'_'e'_'.'_'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'h'_'e'_'a'_'d'_'e'_'r'_'.'_'E'_'v'_'e'_'n'_'t'_'s', 0}

Definition at line 42 of file wtvenc.c.

const uint8_t table_0_header_legacy_attrib[]

static

Initial value:

=

{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'h'_'e'_'a'_'d'_'e'_'r'_'.'_'l'_'e'_'g'_'a'_'c'_'y'_'_'_'a'_'t'_'t'_'r'_'i'_'b', 0}

Definition at line 44 of file wtvenc.c.

const uint8_t table_0_redirector_legacy_attrib[]

static

Initial value:

=

{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'r'_'e'_'d'_'i'_'r'_'e'_'c'_'t'_'o'_'r'_'.'_'l'_'e'_'g'_'a'_'c'_'y'_'_'_'a'_'t'_'t'_'r'_'i'_'b', 0}

Definition at line 46 of file wtvenc.c.

const uint8_t table_0_header_time[]

static

Initial value:

=

{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'h'_'e'_'a'_'d'_'e'_'r'_'.'_'t'_'i'_'m'_'e', 0}

Definition at line 48 of file wtvenc.c.

const uint8_t legacy_attrib[]

static

Initial value:

=

{'l'_'e'_'g'_'a'_'c'_'y'_'_'_'a'_'t'_'t'_'r'_'i'_'b', 0}

Definition at line 50 of file wtvenc.c.

Referenced by write_table0_header_legacy_attrib().

const ff_asf_guid sub_wtv_guid

static

Initial value:

=

{0x8C,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D}

Definition at line 54 of file wtvenc.c.

Referenced by write_header().

const WTVRootEntryTable wtv_root_entry_table[]

static

Initial value:

= {
    { timeline_table_0_header_events,          sizeof(timeline_table_0_header_events),          write_table0_header_events},
    { ff_timeline_table_0_entries_Events_le16, sizeof(ff_timeline_table_0_entries_Events_le16), NULL},
    { ff_timeline_le16,                        sizeof(ff_timeline_le16),                        NULL},
    { table_0_header_legacy_attrib,            sizeof(table_0_header_legacy_attrib),            write_table0_header_legacy_attrib},
    { ff_table_0_entries_legacy_attrib_le16,   sizeof(ff_table_0_entries_legacy_attrib_le16),   NULL},
    { table_0_redirector_legacy_attrib,        sizeof(table_0_redirector_legacy_attrib),        NULL},
    { table_0_header_time,                     sizeof(table_0_header_time),                     write_table0_header_time},
    { ff_table_0_entries_time_le16,            sizeof(ff_table_0_entries_time_le16),            NULL},
}

Definition at line 522 of file wtvenc.c.

Referenced by write_root_table().

AVOutputFormat ff_wtv_muxer

Initial value:

= {
    .name           = "wtv",
    .long_name      = NULL_IF_CONFIG_SMALL("Windows Television (WTV)"),
    .extensions     = "wtv",
    .priv_data_size = sizeof(WtvContext),
    .audio_codec    = AV_CODEC_ID_AC3,
    .video_codec    = AV_CODEC_ID_MPEG2VIDEO,
    .write_header   = write_header,
    .write_packet   = write_packet,
    .write_trailer  = write_trailer,
    .codec_tag      = (const AVCodecTag* const []){ ff_codec_bmp_tags,
                                                    ff_codec_wav_tags, 0 },
}

Definition at line 828 of file wtvenc.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation