stream/realrtsp/rmff.h

   1 /*
   2  * This file was ported to MPlayer from xine CVS rmff.h,v 1.3 2003/02/10 22:11:10
   3  */
   4
   5 /*
   6  * Copyright (C) 2002 the xine project
   7  *
   8  * This file is part of xine, a free video player.
   9  *
  10  * xine is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * xine is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  23  *
  24  *
  25  * some functions for real media file headers
  26  * adopted from joschkas real tools
  27  */
  28
  29 #ifndef MPLAYER_RMFF_H
  30 #define MPLAYER_RMFF_H
  31
  32 #include <sys/types.h>
  33 #include "config.h"
  34 #if !HAVE_WINSOCK2_H
  35 #include <sys/socket.h>
  36 #include <netinet/in.h>
  37 #include <netdb.h>
  38 #else
  39 #include <winsock2.h>
  40 #endif
  41 #include <unistd.h>
  42 #include <stdio.h>
  43 #include <fcntl.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <inttypes.h>
  47
  48
  49 #define RMFF_HEADER_SIZE 0x12
  50
  51 #define RMFF_FILEHEADER_SIZE 18
  52 #define RMFF_PROPHEADER_SIZE 50
  53 #define RMFF_MDPRHEADER_SIZE 46
  54 #define RMFF_CONTHEADER_SIZE 18
  55 #define RMFF_DATAHEADER_SIZE 18
  56
  57 #define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \
  58         (((long)(unsigned char)(ch3)       ) | \
  59         ( (long)(unsigned char)(ch2) << 8  ) | \
  60         ( (long)(unsigned char)(ch1) << 16 ) | \
  61         ( (long)(unsigned char)(ch0) << 24 ) )
  62
  63
  64 #define RMF_TAG   FOURCC_TAG('.', 'R', 'M', 'F')
  65 #define PROP_TAG  FOURCC_TAG('P', 'R', 'O', 'P')
  66 #define MDPR_TAG  FOURCC_TAG('M', 'D', 'P', 'R')
  67 #define CONT_TAG  FOURCC_TAG('C', 'O', 'N', 'T')
  68 #define DATA_TAG  FOURCC_TAG('D', 'A', 'T', 'A')
  69 #define INDX_TAG  FOURCC_TAG('I', 'N', 'D', 'X')
  70 #define PNA_TAG   FOURCC_TAG('P', 'N', 'A',  0 )
  71
  72 #define MLTI_TAG  FOURCC_TAG('M', 'L', 'T', 'I')
  73
  74 /* prop flags */
  75 #define PN_SAVE_ENABLED         0x01
  76 #define PN_PERFECT_PLAY_ENABLED 0x02
  77 #define PN_LIVE_BROADCAST       0x04
  78
  79 /*
  80  * rm header data structs
  81  */
  82
  83 typedef struct {
  84
  85   uint32_t object_id;
  86   uint32_t size;
  87   uint16_t object_version;
  88
  89   uint32_t file_version;
  90   uint32_t num_headers;
  91 } rmff_fileheader_t;
  92
  93 typedef struct {
  94
  95   uint32_t object_id;
  96   uint32_t size;
  97   uint16_t object_version;
  98
  99   uint32_t max_bit_rate;
 100   uint32_t avg_bit_rate;
 101   uint32_t max_packet_size;
 102   uint32_t avg_packet_size;
 103   uint32_t num_packets;
 104   uint32_t duration;
 105   uint32_t preroll;
 106   uint32_t index_offset;
 107   uint32_t data_offset;
 108   uint16_t num_streams;
 109   uint16_t flags;
 110
 111 } rmff_prop_t;
 112
 113 typedef struct {
 114
 115   uint32_t  object_id;
 116   uint32_t  size;
 117   uint16_t  object_version;
 118
 119   uint16_t  stream_number;
 120   uint32_t  max_bit_rate;
 121   uint32_t  avg_bit_rate;
 122   uint32_t  max_packet_size;
 123   uint32_t  avg_packet_size;
 124   uint32_t  start_time;
 125   uint32_t  preroll;
 126   uint32_t  duration;
 127   uint8_t   stream_name_size;
 128   char      *stream_name;
 129   uint8_t   mime_type_size;
 130   char      *mime_type;
 131   uint32_t  type_specific_len;
 132   char      *type_specific_data;
 133
 134   int       mlti_data_size;
 135   char      *mlti_data;
 136
 137 } rmff_mdpr_t;
 138
 139 typedef struct {
 140
 141   uint32_t  object_id;
 142   uint32_t  size;
 143   uint16_t  object_version;
 144
 145   uint16_t  title_len;
 146   char      *title;
 147   uint16_t  author_len;
 148   char      *author;
 149   uint16_t  copyright_len;
 150   char      *copyright;
 151   uint16_t  comment_len;
 152   char      *comment;
 153
 154 } rmff_cont_t;
 155
 156 typedef struct {
 157
 158   uint32_t object_id;
 159   uint32_t size;
 160   uint16_t object_version;
 161
 162   uint32_t num_packets;
 163   uint32_t next_data_header; /* rarely used */
 164 } rmff_data_t;
 165
 166 typedef struct {
 167
 168   rmff_fileheader_t *fileheader;
 169   rmff_prop_t *prop;
 170   rmff_mdpr_t **streams;
 171   rmff_cont_t *cont;
 172   rmff_data_t *data;
 173 } rmff_header_t;
 174
 175 typedef struct {
 176
 177   uint16_t object_version;
 178
 179   uint16_t length;
 180   uint16_t stream_number;
 181   uint32_t timestamp;
 182   uint8_t reserved;
 183   uint8_t flags;
 184
 185 } rmff_pheader_t;
 186
 187 /*
 188  * constructors for header structs
 189  */
 190
 191 rmff_fileheader_t *rmff_new_fileheader(uint32_t num_headers);
 192
 193 rmff_prop_t *rmff_new_prop (
 194     uint32_t max_bit_rate,
 195     uint32_t avg_bit_rate,
 196     uint32_t max_packet_size,
 197     uint32_t avg_packet_size,
 198     uint32_t num_packets,
 199     uint32_t duration,
 200     uint32_t preroll,
 201     uint32_t index_offset,
 202     uint32_t data_offset,
 203     uint16_t num_streams,
 204     uint16_t flags );
 205
 206 rmff_mdpr_t *rmff_new_mdpr(
 207     uint16_t   stream_number,
 208     uint32_t   max_bit_rate,
 209     uint32_t   avg_bit_rate,
 210     uint32_t   max_packet_size,
 211     uint32_t   avg_packet_size,
 212     uint32_t   start_time,
 213     uint32_t   preroll,
 214     uint32_t   duration,
 215     const char *stream_name,
 216     const char *mime_type,
 217     uint32_t   type_specific_len,
 218     const char *type_specific_data );
 219
 220 rmff_cont_t *rmff_new_cont(
 221     const char *title,
 222     const char *author,
 223     const char *copyright,
 224     const char *comment);
 225
 226 rmff_data_t *rmff_new_dataheader(
 227     uint32_t num_packets, uint32_t next_data_header);
 228
 229 /*
 230  * reads header infos from data and returns a newly allocated header struct
 231  */
 232 rmff_header_t *rmff_scan_header(const char *data);
 233
 234 /*
 235  * scans a data packet header. Notice, that this function does not allocate
 236  * the header struct itself.
 237  */
 238 void rmff_scan_pheader(rmff_pheader_t *h, char *data);
 239
 240 /*
 241  * reads header infos from stream and returns a newly allocated header struct
 242  */
 243 rmff_header_t *rmff_scan_header_stream(int fd);
 244
 245 /*
 246  * prints header information in human readible form to stdout
 247  */
 248 void rmff_print_header(rmff_header_t *h);
 249
 250 /*
 251  * does some checks and fixes header if possible
 252  */
 253 void rmff_fix_header(rmff_header_t *h);
 254
 255 /*
 256  * returns the size of the header (incl. first data-header)
 257  */
 258 int rmff_get_header_size(rmff_header_t *h);
 259
 260 /*
 261  * dumps the header <h> to <buffer>. <max> is the size of <buffer>
 262  */
 263 int rmff_dump_header(rmff_header_t *h, char *buffer, int max);
 264
 265 /*
 266  * dumps a packet header
 267  */
 268 void rmff_dump_pheader(rmff_pheader_t *h, char *data);
 269
 270 /*
 271  * frees a header struct
 272  */
 273 void rmff_free_header(rmff_header_t *h);
 274
 275 #endif /* MPLAYER_RMFF_H */