hvirtual/libmpeg3/mpeg3ifo.c File Reference

#include <byteswap.h>
#include <dirent.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "ifo.h"
#include "mpeg3private.h"
#include "mpeg3protos.h"

Include dependency graph for mpeg3ifo.c:

Go to the source code of this file.

Data Structures
struct	mpeg3ifo_cell_t
struct	mpeg3ifo_celltable_t
struct	cell_addr_hdr_t
struct	audio_hdr_t
struct	pgci_sub_t
Defines
#define	CADDR_HDR_LEN   8
#define	AUDIO_HDR_LEN   4
#define	PGCI_SUB_LEN   8
#define	PGCI_COLOR_LEN   4
#define	OFF_PTT   get4bytes (ifo->data[ID_MAT] + 0xC8)
#define	OFF_TITLE_PGCI   get4bytes (ifo->data[ID_MAT] + 0xCC)
#define	OFF_MENU_PGCI   get4bytes (ifo->data[ID_MAT] + 0xD0)
#define	OFF_TMT   get4bytes (ifo->data[ID_MAT] + 0xD4)
#define	OFF_MENU_CELL_ADDR   get4bytes (ifo->data[ID_MAT] + 0xD8)
#define	OFF_MENU_VOBU_ADDR_MAP   get4bytes (ifo->data[ID_MAT] + 0xDC)
#define	OFF_TITLE_CELL_ADDR   get4bytes (ifo->data[ID_MAT] + 0xE0)
#define	OFF_TITLE_VOBU_ADDR_MAP   get4bytes (ifo->data[ID_MAT] + 0xE4)
#define	OFF_VMG_TSP   get4bytes (ifo->data[ID_MAT] + 0xC4)
#define	OFF_VMG_MENU_PGCI   get4bytes (ifo->data[ID_MAT] + 0xC8)
#define	OFF_VMG_TMT   get4bytes (ifo->data[ID_MAT] + 0xD0)
#define	TEST_START   0x1000000
#define	TEST_LEN   0x1000000
Functions
static u_int	get4bytes (u_char *buf)
static u_int	get2bytes (u_char *buf)
static int	ifo_read (int fd, long pos, long count, unsigned char *data)
static int	ifo_vts (ifo_t *ifo)
static int	ifo_vmg (ifo_t *ifo)
static int	ifo_table (ifo_t *ifo, int64_t offset, unsigned long tbl_id)
static ifo_t *	ifo_open (int fd, long pos)
static int	ifo_close (ifo_t *ifo)
static int	ifo_audio (char *_hdr, char **ptr)
static int	pgci (ifo_hdr_t *hdr, int title, char **ptr)
static int	program_map (mpeg3_t *file, char *pgc, unsigned char **ptr)
static u_int	get_cellplayinfo (u_char *pgc, u_char **ptr)
static void	get_ifo_playlist (mpeg3_t *file, mpeg3_demuxer_t *demuxer)
static void	get_ifo_header (mpeg3_demuxer_t *demuxer, ifo_t *ifo)
static mpeg3ifo_cell_t *	append_cell (mpeg3ifo_celltable_t *table)
static void	delete_celltable (mpeg3ifo_celltable_t *table)
static void	cellplayinfo (mpeg3_t *file, ifo_t *ifo, mpeg3ifo_celltable_t *cells)
static void	celladdresses (ifo_t *ifo, mpeg3ifo_celltable_t *cell_addresses)
static void	finaltable (mpeg3ifo_celltable_t *final_cells, mpeg3ifo_celltable_t *cells, mpeg3ifo_celltable_t *cell_addresses)
int	mpeg3_read_ifo (mpeg3_t *file, int read_cells)

---

Define Documentation

#define AUDIO_HDR_LEN   4

Definition at line 48 of file mpeg3ifo.c.

Referenced by ifo_audio().

#define CADDR_HDR_LEN   8

Definition at line 35 of file mpeg3ifo.c.

Referenced by celladdresses().

#define OFF_MENU_CELL_ADDR   get4bytes (ifo->data[ID_MAT] + 0xD8)

Definition at line 86 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_MENU_PGCI   get4bytes (ifo->data[ID_MAT] + 0xD0)

Definition at line 84 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_MENU_VOBU_ADDR_MAP   get4bytes (ifo->data[ID_MAT] + 0xDC)

Definition at line 87 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_PTT   get4bytes (ifo->data[ID_MAT] + 0xC8)

Definition at line 82 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_TITLE_CELL_ADDR   get4bytes (ifo->data[ID_MAT] + 0xE0)

Definition at line 88 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_TITLE_PGCI   get4bytes (ifo->data[ID_MAT] + 0xCC)

Definition at line 83 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_TITLE_VOBU_ADDR_MAP   get4bytes (ifo->data[ID_MAT] + 0xE4)

Definition at line 89 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_TMT   get4bytes (ifo->data[ID_MAT] + 0xD4)

Definition at line 85 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_VMG_MENU_PGCI   get4bytes (ifo->data[ID_MAT] + 0xC8)

Definition at line 92 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_VMG_TMT   get4bytes (ifo->data[ID_MAT] + 0xD0)

Definition at line 93 of file mpeg3ifo.c.

Referenced by ifo_open().

#define OFF_VMG_TSP   get4bytes (ifo->data[ID_MAT] + 0xC4)

Definition at line 91 of file mpeg3ifo.c.

Referenced by ifo_open().

#define PGCI_COLOR_LEN   4

Definition at line 58 of file mpeg3ifo.c.

Referenced by get_cellplayinfo().

#define PGCI_SUB_LEN   8

Definition at line 56 of file mpeg3ifo.c.

#define TEST_LEN   0x1000000

Referenced by get_ifo_header().

#define TEST_START   0x1000000

Referenced by get_ifo_header().

---

Function Documentation

static mpeg3ifo_cell_t* append_cell

(

mpeg3ifo_celltable_t *

table

)

[static]

Definition at line 477 of file mpeg3ifo.c.

References mpeg3ifo_celltable_t::cells, mpeg3ifo_celltable_t::cells_allocated, memcpy, and mpeg3ifo_celltable_t::total_cells.

Referenced by celladdresses(), and cellplayinfo().

static void celladdresses	(	ifo_t *	ifo,
		mpeg3ifo_celltable_t *	cell_addresses
	)			[static]

Definition at line 572 of file mpeg3ifo.c.

References append_cell(), bswap_16(), bswap_32(), CADDR_HDR_LEN, ifo_cell_addr_t::cell_id, mpeg3ifo_cell_t::cell_id, mpeg3ifo_celltable_t::cells, ifo_t::data, ifo_cell_addr_t::end, mpeg3ifo_cell_t::end_byte, ID_TITLE_CELL_ADDR, ifo_cell_addr_t::start, mpeg3ifo_cell_t::start_byte, ifo_cell_addr_t::vob_id, and mpeg3ifo_cell_t::vob_id.

Referenced by mpeg3_read_ifo().

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static void cellplayinfo	(	mpeg3_t *	file,
		ifo_t *	ifo,
		mpeg3ifo_celltable_t *	cells
	)			[static]

Definition at line 504 of file mpeg3ifo.c.

References append_cell(), bswap_16(), bswap_32(), mpeg3ifo_cell_t::cell_type, mpeg3ifo_celltable_t::cells, ifo_pgci_cell_addr_t::chain_info, ifo_t::data, mpeg3ifo_cell_t::end_byte, get_cellplayinfo(), ID_TITLE_PGCI, ifo_hdr_t::num, pgci(), PGCI_CELL_ADDR_LEN, program_map(), mpeg3ifo_cell_t::start_byte, mpeg3ifo_celltable_t::total_cells, ifo_pgci_cell_addr_t::vobu_last_end, and ifo_pgci_cell_addr_t::vobu_start.

Referenced by mpeg3_read_ifo().

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static void delete_celltable

(

mpeg3ifo_celltable_t *

table

)

[static]

Definition at line 498 of file mpeg3ifo.c.

References mpeg3ifo_celltable_t::cells.

Referenced by mpeg3_read_ifo().

static void finaltable	(	mpeg3ifo_celltable_t *	final_cells,
		mpeg3ifo_celltable_t *	cells,
		mpeg3ifo_celltable_t *	cell_addresses
	)			[static]

Definition at line 624 of file mpeg3ifo.c.

References mpeg3ifo_cell_t::cell_id, mpeg3ifo_celltable_t::cells, mpeg3ifo_celltable_t::cells_allocated, mpeg3ifo_cell_t::end_byte, input, output, mpeg3ifo_cell_t::program, mpeg3ifo_cell_t::start_byte, mpeg3ifo_celltable_t::total_cells, and mpeg3ifo_cell_t::vob_id.

Referenced by mpeg3_read_ifo().

static u_int get2bytes

(

u_char *

buf

)

[static]

Definition at line 66 of file mpeg3ifo.c.

References bswap_16().

Referenced by get_cellplayinfo(), and program_map().

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static u_int get4bytes

(

u_char *

buf

)

[static]

Definition at line 61 of file mpeg3ifo.c.

References bswap_32().

Referenced by ifo_open(), and ifo_table().

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static u_int get_cellplayinfo	(	u_char *	pgc,
		u_char **	ptr
	)			[static]

Definition at line 319 of file mpeg3ifo.c.

References get2bytes(), and PGCI_COLOR_LEN.

Referenced by cellplayinfo().

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static void get_ifo_header	(	mpeg3_demuxer_t *	demuxer,
		ifo_t *	ifo
	)			[static]

Definition at line 421 of file mpeg3ifo.c.

References mpeg3_demuxer_t::astream_table, ifo_t::data, ID_MAT, ifo_audio(), IFO_OFFSET_AUDIO, ifo_vmg(), ifo_vts(), MPEG3_MAX_STREAMS, mpeg3_read_next_packet(), mpeg3demux_eof(), mpeg3demux_open_title(), mpeg3demux_seek_byte(), mpeg3demux_tell_byte(), TEST_LEN, TEST_START, and mpeg3_demuxer_t::vstream_table.

Referenced by mpeg3_read_ifo().

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static void get_ifo_playlist	(	mpeg3_t *	file,
		mpeg3_demuxer_t *	demuxer
	)			[static]

Definition at line 342 of file mpeg3ifo.c.

References complete_path(), mpeg3_title_t::end_byte, mpeg3_title_t::fs, mpeg3_t::fs, mpeg3_new_cell(), mpeg3_new_title(), MPEG3_STRLEN, mpeg3io_complete_path(), mpeg3io_get_directory(), mpeg3io_get_filename(), mpeg3io_joinpath(), mpeg3io_path_total_bytes(), mpeg3_fs_t::path, mpeg3_title_t::start_byte, strrchr, mpeg3_demuxer_t::titles, mpeg3_title_t::total_bytes, and mpeg3_demuxer_t::total_titles.

Referenced by mpeg3_read_ifo().

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static int ifo_audio	(	char *	_hdr,
		char **	ptr
	)			[static]

Definition at line 230 of file mpeg3ifo.c.

References AUDIO_HDR_LEN, bswap_16(), and audio_hdr_t::num.

Referenced by get_ifo_header().

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static int ifo_close

(

ifo_t *

ifo

)

[static]

Definition at line 213 of file mpeg3ifo.c.

References ifo_t::data, ID_MAT, ID_MENU_CELL_ADDR, ID_MENU_PGCI, ID_MENU_VOBU_ADDR_MAP, ID_PTT, ID_TITLE_CELL_ADDR, ID_TITLE_PGCI, ID_TITLE_VOBU_ADDR_MAP, and ID_TMT.

Referenced by mpeg3_read_ifo().

static ifo_t* ifo_open	(	int	fd,
		long	pos
	)			[static]

Definition at line 162 of file mpeg3ifo.c.

References ifo_t::data, DVD_VIDEO_LB_LEN, ifo_t::fd, get4bytes(), ID_MAT, ID_MENU_CELL_ADDR, ID_MENU_PGCI, ID_MENU_VOBU_ADDR_MAP, ID_PTT, ID_TITLE_CELL_ADDR, ID_TITLE_PGCI, ID_TITLE_VOBU_ADDR_MAP, ID_TMT, ID_TSP, ifo_read(), ifo_table(), ifo_vmg(), ifo_vts(), NULL, ifo_t::num_menu_vobs, OFF_MENU_CELL_ADDR, OFF_MENU_PGCI, OFF_MENU_VOBU_ADDR_MAP, OFF_PTT, OFF_TITLE_CELL_ADDR, OFF_TITLE_PGCI, OFF_TITLE_VOBU_ADDR_MAP, OFF_TMT, OFF_VMG_MENU_PGCI, OFF_VMG_TMT, OFF_VMG_TSP, ifo_t::pos, and ifo_t::vob_start.

Referenced by mpeg3_read_ifo().

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static int ifo_read	(	int	fd,
		long	pos,
		long	count,
		unsigned char *	data
	)			[static]

Definition at line 71 of file mpeg3ifo.c.

Referenced by ifo_open(), and ifo_table().

static int ifo_table	(	ifo_t *	ifo,
		int64_t	offset,
		unsigned long	tbl_id
	)			[static]

Definition at line 113 of file mpeg3ifo.c.

References bswap_32(), ifo_t::data, DVD_VIDEO_LB_LEN, ifo_t::fd, get4bytes(), ID_MENU_VOBU_ADDR_MAP, ID_TITLE_VOBU_ADDR_MAP, ID_TMT, ifo_read(), ifo_hdr_t::len, and ifo_t::pos.

Referenced by ifo_open().

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static int ifo_vmg

(

ifo_t *

ifo

)

[static]

Definition at line 105 of file mpeg3ifo.c.

References ifo_t::data, and ID_MAT.

Referenced by get_ifo_header(), and ifo_open().

static int ifo_vts

(

ifo_t *

ifo

)

[static]

Definition at line 96 of file mpeg3ifo.c.

References ifo_t::data, and ID_MAT.

Referenced by get_ifo_header(), and ifo_open().

int mpeg3_read_ifo	(	mpeg3_t *	file,
		int	read_cells
	)

Definition at line 705 of file mpeg3ifo.c.

References mpeg3_title_t::cell_table, mpeg3_title_t::cell_table_size, celladdresses(), cellplayinfo(), mpeg3ifo_celltable_t::cells, delete_celltable(), mpeg3_t::demuxer, mpeg3ifo_cell_t::end_byte, finaltable(), fprintf, mpeg3_t::fs, get_ifo_header(), get_ifo_playlist(), ifo_close(), ifo_open(), mpeg3_new_cell(), mpeg3io_get_fd, mpeg3ifo_cell_t::program, mpeg3_demuxer_t::read_all, mpeg3ifo_cell_t::start_byte, mpeg3_demuxer_t::titles, mpeg3_title_t::total_bytes, mpeg3ifo_celltable_t::total_cells, and mpeg3_demuxer_t::total_titles.

Referenced by mpeg3_get_file_type().

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static int pgci	(	ifo_hdr_t *	hdr,
		int	title,
		char **	ptr
	)			[static]

Definition at line 242 of file mpeg3ifo.c.

References bswap_32(), IFO_HDR_LEN, ifo_hdr_t::num, and pgci_sub_t::start.

Referenced by cellplayinfo().

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static int program_map	(	mpeg3_t *	file,
		char *	pgc,
		unsigned char **	ptr
	)			[static]

Definition at line 261 of file mpeg3ifo.c.

References b, CLAMP, get2bytes(), mpeg3_t::have_palette, mpeg3_t::palette, and r.

Referenced by cellplayinfo().

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