wtvenc.c File Reference

Windows Television (WTV) demuxer. More...

#include "libavutil/intreadwrite.h"
#include "libavutil/avassert.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "mpegts.h"
#include "wtv.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 void	write_chunk_header (AVFormatContext *s, const ff_asf_guid *guid, int length, int stream_id)
	Write chunk header. More...
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. More...
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

WTV_BIGSECTOR_SIZE

#define WTV_BIGSECTOR_SIZE   (1 << WTV_BIGSECTOR_BITS)

Definition at line 36 of file wtvenc.c.

Referenced by finish_file().

INDEX_BASE

#define INDEX_BASE   0x2

Definition at line 37 of file wtvenc.c.

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

MAX_NB_INDEX

#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.

write_pad

#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

WTVHeaderWriteFunc

typedef int WTVHeaderWriteFunc(AVIOContext *pb)

Definition at line 123 of file wtvenc.c.

Enumeration Type Documentation

WtvFileIndex

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

add_serial_pair()

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().

write_chunk_header()

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 136 of file wtvenc.c.

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

write_chunk_header2()

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

static

Definition at line 158 of file wtvenc.c.

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

finish_chunk_noindex()

static void finish_chunk_noindex ( AVFormatContext *  s )

static

Definition at line 168 of file wtvenc.c.

Referenced by finish_chunk(), and write_index().

write_index()

static void write_index ( AVFormatContext *  s )

static

Definition at line 183 of file wtvenc.c.

Referenced by finish_chunk(), and write_header().

finish_chunk()

static void finish_chunk ( AVFormatContext *  s )

static

Definition at line 208 of file wtvenc.c.

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

put_videoinfoheader2()

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

static

Definition at line 216 of file wtvenc.c.

Referenced by write_stream_codec_info().

write_stream_codec_info()

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

static

Definition at line 259 of file wtvenc.c.

Referenced by write_stream_codec(), and write_stream_data().

write_stream_codec()

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

static

Definition at line 317 of file wtvenc.c.

Referenced by write_header().

write_sync()

static void write_sync ( AVFormatContext *  s )

static

Definition at line 337 of file wtvenc.c.

Referenced by write_header(), and write_packet().

write_stream_data()

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

static

Definition at line 354 of file wtvenc.c.

Referenced by write_header().

write_header()

static int write_header ( AVFormatContext *  s )

static

Definition at line 377 of file wtvenc.c.

write_timestamp()

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

static

Definition at line 442 of file wtvenc.c.

Referenced by write_packet().

write_packet()

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

static

Definition at line 460 of file wtvenc.c.

write_table0_header_events()

static int write_table0_header_events ( AVIOContext *  pb )

static

Definition at line 499 of file wtvenc.c.

write_table0_header_legacy_attrib()

static int write_table0_header_legacy_attrib ( AVIOContext *  pb )

static

Definition at line 507 of file wtvenc.c.

write_table0_header_time()

static int write_table0_header_time ( AVIOContext *  pb )

static

Definition at line 519 of file wtvenc.c.

write_root_table()

static int write_root_table ( AVFormatContext *  s, int64_t  sector_pos  )

static

Definition at line 538 of file wtvenc.c.

Referenced by write_trailer().

write_fat()

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

static

Definition at line 585 of file wtvenc.c.

Referenced by write_fat_sector().

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 595 of file wtvenc.c.

Referenced by finish_file().

write_table_entries_events()

static void write_table_entries_events ( AVFormatContext *  s )

static

Definition at line 615 of file wtvenc.c.

Referenced by write_trailer().

write_table_entries_time()

static void write_table_entries_time ( AVFormatContext *  s )

static

Definition at line 626 of file wtvenc.c.

Referenced by write_trailer().

write_metadata_header()

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

static

Definition at line 639 of file wtvenc.c.

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

metadata_header_size()

static int metadata_header_size ( const char *  key )

static

Definition at line 647 of file wtvenc.c.

Referenced by write_table_redirector_legacy_attrib().

write_tag_int32()

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

static

Definition at line 652 of file wtvenc.c.

Referenced by write_table_entries_attrib().

write_tag()

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

static

Definition at line 658 of file wtvenc.c.

Referenced by write_table_entries_attrib().

attachment_value_size()

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

static

Definition at line 664 of file wtvenc.c.

Referenced by write_table_entries_attrib(), and write_table_redirector_legacy_attrib().

write_table_entries_attrib()

static void write_table_entries_attrib ( AVFormatContext *  s )

static

Definition at line 669 of file wtvenc.c.

Referenced by write_trailer().

write_table_redirector_legacy_attrib()

static void write_table_redirector_legacy_attrib ( AVFormatContext *  s )

static

Definition at line 697 of file wtvenc.c.

Referenced by write_trailer().

finish_file()

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 725 of file wtvenc.c.

Referenced by write_trailer().

write_trailer()

static int write_trailer ( AVFormatContext *  s )

static

Definition at line 782 of file wtvenc.c.

Variable Documentation

timeline_table_0_header_events

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.

table_0_header_legacy_attrib

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.

table_0_redirector_legacy_attrib

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.

table_0_header_time

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.

legacy_attrib

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().

sub_wtv_guid

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().

wtv_root_entry_table

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 527 of file wtvenc.c.

Referenced by write_root_table().

ff_wtv_muxer

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 834 of file wtvenc.c.