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/*
* This file was ported to MPlayer from xine CVS rmff.h,v 1.3 2003/02/10 22:11:10
*/
/*
* Copyright (C) 2002 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
*
* some functions for real media file headers
* adopted from joschkas real tools
*/
#include <sys/types.h>
#include "config.h"
#ifndef HAVE_WINSOCK2
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#else
#include <winsock2.h>
#endif
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#ifndef HAVE_RMFF_H
#define HAVE_RMFF_H
#define RMFF_HEADER_SIZE 0x12
#define RMFF_FILEHEADER_SIZE 18
#define RMFF_PROPHEADER_SIZE 50
#define RMFF_MDPRHEADER_SIZE 46
#define RMFF_CONTHEADER_SIZE 18
#define RMFF_DATAHEADER_SIZE 18
#define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \
(((long)(unsigned char)(ch3) ) | \
( (long)(unsigned char)(ch2) << 8 ) | \
( (long)(unsigned char)(ch1) << 16 ) | \
( (long)(unsigned char)(ch0) << 24 ) )
#define RMF_TAG FOURCC_TAG('.', 'R', 'M', 'F')
#define PROP_TAG FOURCC_TAG('P', 'R', 'O', 'P')
#define MDPR_TAG FOURCC_TAG('M', 'D', 'P', 'R')
#define CONT_TAG FOURCC_TAG('C', 'O', 'N', 'T')
#define DATA_TAG FOURCC_TAG('D', 'A', 'T', 'A')
#define INDX_TAG FOURCC_TAG('I', 'N', 'D', 'X')
#define PNA_TAG FOURCC_TAG('P', 'N', 'A', 0 )
#define MLTI_TAG FOURCC_TAG('M', 'L', 'T', 'I')
/* prop flags */
#define PN_SAVE_ENABLED 0x01
#define PN_PERFECT_PLAY_ENABLED 0x02
#define PN_LIVE_BROADCAST 0x04
/*
* rm header data structs
*/
typedef struct {
uint32_t object_id;
uint32_t size;
uint16_t object_version;
uint32_t file_version;
uint32_t num_headers;
} rmff_fileheader_t;
typedef struct {
uint32_t object_id;
uint32_t size;
uint16_t object_version;
uint32_t max_bit_rate;
uint32_t avg_bit_rate;
uint32_t max_packet_size;
uint32_t avg_packet_size;
uint32_t num_packets;
uint32_t duration;
uint32_t preroll;
uint32_t index_offset;
uint32_t data_offset;
uint16_t num_streams;
uint16_t flags;
} rmff_prop_t;
typedef struct {
uint32_t object_id;
uint32_t size;
uint16_t object_version;
uint16_t stream_number;
uint32_t max_bit_rate;
uint32_t avg_bit_rate;
uint32_t max_packet_size;
uint32_t avg_packet_size;
uint32_t start_time;
uint32_t preroll;
uint32_t duration;
uint8_t stream_name_size;
char *stream_name;
uint8_t mime_type_size;
char *mime_type;
uint32_t type_specific_len;
char *type_specific_data;
int mlti_data_size;
char *mlti_data;
} rmff_mdpr_t;
typedef struct {
uint32_t object_id;
uint32_t size;
uint16_t object_version;
uint16_t title_len;
char *title;
uint16_t author_len;
char *author;
uint16_t copyright_len;
char *copyright;
uint16_t comment_len;
char *comment;
} rmff_cont_t;
typedef struct {
uint32_t object_id;
uint32_t size;
uint16_t object_version;
uint32_t num_packets;
uint32_t next_data_header; /* rarely used */
} rmff_data_t;
typedef struct {
rmff_fileheader_t *fileheader;
rmff_prop_t *prop;
rmff_mdpr_t **streams;
rmff_cont_t *cont;
rmff_data_t *data;
} rmff_header_t;
typedef struct {
uint16_t object_version;
uint16_t length;
uint16_t stream_number;
uint32_t timestamp;
uint8_t reserved;
uint8_t flags;
} rmff_pheader_t;
/*
* constructors for header structs
*/
rmff_fileheader_t *rmff_new_fileheader(uint32_t num_headers);
rmff_prop_t *rmff_new_prop (
uint32_t max_bit_rate,
uint32_t avg_bit_rate,
uint32_t max_packet_size,
uint32_t avg_packet_size,
uint32_t num_packets,
uint32_t duration,
uint32_t preroll,
uint32_t index_offset,
uint32_t data_offset,
uint16_t num_streams,
uint16_t flags );
rmff_mdpr_t *rmff_new_mdpr(
uint16_t stream_number,
uint32_t max_bit_rate,
uint32_t avg_bit_rate,
uint32_t max_packet_size,
uint32_t avg_packet_size,
uint32_t start_time,
uint32_t preroll,
uint32_t duration,
const char *stream_name,
const char *mime_type,
uint32_t type_specific_len,
const char *type_specific_data );
rmff_cont_t *rmff_new_cont(
const char *title,
const char *author,
const char *copyright,
const char *comment);
rmff_data_t *rmff_new_dataheader(
uint32_t num_packets, uint32_t next_data_header);
/*
* reads header infos from data and returns a newly allocated header struct
*/
rmff_header_t *rmff_scan_header(const char *data);
/*
* scans a data packet header. Notice, that this function does not allocate
* the header struct itself.
*/
void rmff_scan_pheader(rmff_pheader_t *h, char *data);
/*
* reads header infos from stream and returns a newly allocated header struct
*/
rmff_header_t *rmff_scan_header_stream(int fd);
/*
* prints header information in human readible form to stdout
*/
void rmff_print_header(rmff_header_t *h);
/*
* does some checks and fixes header if possible
*/
void rmff_fix_header(rmff_header_t *h);
/*
* returns the size of the header (incl. first data-header)
*/
int rmff_get_header_size(rmff_header_t *h);
/*
* dumps the header <h> to <buffer>. <max> is the size of <buffer>
*/
int rmff_dump_header(rmff_header_t *h, char *buffer, int max);
/*
* dumps a packet header
*/
void rmff_dump_pheader(rmff_pheader_t *h, char *data);
/*
* frees a header struct
*/
void rmff_free_header(rmff_header_t *h);
#endif /* HAVE_RMFF_H */
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