git.sesse.net Git - vlc/blob - modules/misc/rtsp.c

   1 /*****************************************************************************
   2  * rtsp.c: rtsp VoD server module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program 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  * This program 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #define _GNU_SOURCE
  29 #include <stdlib.h>
  30
  31 #include <errno.h>
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc_input.h>
  35 #include <vlc_sout.h>
  36
  37 #include "vlc_httpd.h"
  38 #include "vlc_vod.h"
  39 #include "vlc_url.h"
  40 #include <vlc_network.h>
  41 #include <vlc_charset.h>
  42
  43 /*****************************************************************************
  44  * Module descriptor
  45  *****************************************************************************/
  46 static int  Open ( vlc_object_t * );
  47 static void Close( vlc_object_t * );
  48
  49 #define HOST_TEXT N_( "RTSP host address" )
  50 /// \bug [String] extra space
  51 #define HOST_LONGTEXT N_( \
  52     "This defines the address, port and path the RTSP VOD server will listen " \
  53     "on.\nSyntax is address:port/path. The default is to listen on all "\
  54     "interfaces (address 0.0.0.0), on port 554, with no path.\n To listen " \
  55     "only on the local interface, use \"localhost\" as address." )
  56
  57 #define THROTLE_TEXT N_( "Maximum number of connections" )
  58 #define THROTLE_LONGTEXT N_( "This limits the maximum number of clients " \
  59     "that can connect to the RTSP VOD. 0 means no limit."  )
  60
  61 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
  62
  63 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
  64     "session string" )
  65 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
  66     "to the RTSP session ID string. Setting it to a negative number removes " \
  67     "the timeout option entirely. This is needed by some IPTV STBs (such as " \
  68     "those made by HansunTech) which get confused by it. The default is 5." )
  69
  70 vlc_module_begin();
  71     set_shortname( _("RTSP VoD" ) );
  72     set_description( _("RTSP VoD server") );
  73     set_category( CAT_SOUT );
  74     set_subcategory( SUBCAT_SOUT_VOD );
  75     set_capability( "vod server", 1 );
  76     set_callbacks( Open, Close );
  77     add_shortcut( "rtsp" );
  78     add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, VLC_TRUE );
  79     add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT, RAWMUX_TEXT, VLC_TRUE );
  80     add_integer( "rtsp-throttle-users", 0, NULL, THROTLE_TEXT,
  81                                            THROTLE_LONGTEXT, VLC_TRUE );
  82     add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
  83                  SESSION_TIMEOUT_LONGTEXT, VLC_TRUE );
  84 vlc_module_end();
  85
  86 /*****************************************************************************
  87  * Exported prototypes
  88  *****************************************************************************/
  89
  90 typedef struct media_es_t media_es_t;
  91
  92 typedef struct
  93 {
  94     media_es_t *p_media_es;
  95     char *psz_ip;
  96     int i_port;
  97
  98 } rtsp_client_es_t;
  99
 100 typedef struct
 101 {
 102     char *psz_session;
 103     int64_t i_last; /* for timeout */
 104
 105     vlc_bool_t b_playing; /* is it in "play" state */
 106     vlc_bool_t b_paused; /* is it in "pause" state */
 107
 108     int i_es;
 109     rtsp_client_es_t **es;
 110
 111 } rtsp_client_t;
 112
 113 struct media_es_t
 114 {
 115     /* VoD server */
 116     vod_t *p_vod;
 117
 118     /* RTSP server */
 119     httpd_url_t *p_rtsp_url;
 120
 121     vod_media_t *p_media;
 122
 123     es_format_t fmt;
 124     int         i_port;
 125     uint8_t     i_payload_type;
 126     char        *psz_rtpmap;
 127     char        *psz_fmtp;
 128
 129 };
 130
 131 struct vod_media_t
 132 {
 133     /* VoD server */
 134     vod_t *p_vod;
 135
 136     /* RTSP server */
 137     httpd_url_t  *p_rtsp_url;
 138     char         *psz_rtsp_control_v4;
 139     char         *psz_rtsp_control_v6;
 140     char         *psz_rtsp_path;
 141
 142     int  i_port;
 143     int  i_port_audio;
 144     int  i_port_video;
 145     int  i_ttl;
 146     int  i_payload_type;
 147
 148     int64_t i_sdp_id;
 149     int     i_sdp_version;
 150
 151     vlc_bool_t b_multicast;
 152
 153     vlc_mutex_t lock;
 154
 155     /* ES list */
 156     int        i_es;
 157     media_es_t **es;
 158     char       *psz_mux;
 159     vlc_bool_t  b_raw;
 160
 161     /* RTSP client */
 162     int           i_rtsp;
 163     rtsp_client_t **rtsp;
 164
 165     /* Infos */
 166     char *psz_session_name;
 167     char *psz_session_description;
 168     char *psz_session_url;
 169     char *psz_session_email;
 170     mtime_t i_length;
 171 };
 172
 173 struct vod_sys_t
 174 {
 175     /* RTSP server */
 176     httpd_host_t *p_rtsp_host;
 177     char *psz_path;
 178     int i_port;
 179     int i_throttle_users;
 180     int i_connections;
 181
 182     char *psz_raw_mux;
 183
 184     int i_session_timeout;
 185
 186     /* List of media */
 187     int i_media;
 188     vod_media_t **media;
 189 };
 190
 191 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
 192 static void         MediaDel( vod_t *, vod_media_t * );
 193 static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
 194 static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );
 195
 196 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
 197 static rtsp_client_t *RtspClientGet( vod_media_t *, char * );
 198 static void           RtspClientDel( vod_media_t *, rtsp_client_t * );
 199
 200 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
 201                          httpd_message_t *, httpd_message_t * );
 202 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
 203                            httpd_message_t *, httpd_message_t * );
 204
 205 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
 206
 207 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
 208 {
 209     static const char hex[16] = "0123456789abcdef";
 210     int i;
 211
 212     for( i = 0; i < i_data; i++ )
 213     {
 214         s[2*i+0] = hex[(p_data[i]>>4)&0xf];
 215         s[2*i+1] = hex[(p_data[i]   )&0xf];
 216     }
 217     s[2*i_data] = '\0';
 218 }
 219
 220 /*****************************************************************************
 221  * Open: Starts the RTSP server module
 222  *****************************************************************************/
 223 static int Open( vlc_object_t *p_this )
 224 {
 225     vod_t *p_vod = (vod_t *)p_this;
 226     vod_sys_t *p_sys = 0;
 227     char *psz_url = 0;
 228     vlc_url_t url;
 229
 230     psz_url = config_GetPsz( p_vod, "rtsp-host" );
 231     vlc_UrlParse( &url, psz_url, 0 );
 232     if( psz_url ) free( psz_url );
 233
 234     if( url.i_port <= 0 ) url.i_port = 554;
 235
 236     p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
 237     if( !p_sys ) goto error;
 238     p_sys->p_rtsp_host = 0;
 239
 240     var_Create( p_this, "rtsp-session-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 241     p_sys->i_session_timeout = var_GetInteger( p_this, "rtsp-session-timeout" );
 242
 243     var_Create( p_this, "rtsp-throttle-users", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 244     p_sys->i_throttle_users = var_GetInteger( p_this, "rtsp-throtle-users" );
 245     msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
 246     p_sys->i_connections = 0;
 247
 248     var_Create( p_this, "rtsp-raw-mux", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 249     p_sys->psz_raw_mux = var_GetString( p_this, "rtsp-raw-mux" );
 250
 251     p_sys->p_rtsp_host =
 252         httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
 253     if( !p_sys->p_rtsp_host )
 254     {
 255         msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
 256                  url.psz_host, url.i_port );
 257         goto error;
 258     }
 259
 260     p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
 261     p_sys->i_port = url.i_port;
 262
 263     vlc_UrlClean( &url );
 264     p_sys->media = NULL;
 265     p_sys->i_media = 0;
 266
 267     p_vod->pf_media_new = MediaNew;
 268     p_vod->pf_media_del = MediaDel;
 269     p_vod->pf_media_add_es = MediaAddES;
 270     p_vod->pf_media_del_es = MediaDelES;
 271
 272     return VLC_SUCCESS;
 273
 274 error:
 275     if( p_sys && p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
 276     if( p_sys && p_sys->psz_raw_mux ) free( p_sys->psz_raw_mux );
 277     if( p_sys ) free( p_sys );
 278     vlc_UrlClean( &url );
 279
 280     return VLC_EGENERIC;
 281 }
 282
 283 /*****************************************************************************
 284  * Close:
 285  *****************************************************************************/
 286 static void Close( vlc_object_t * p_this )
 287 {
 288     vod_t *p_vod = (vod_t *)p_this;
 289     vod_sys_t *p_sys = p_vod->p_sys;
 290
 291     httpd_HostDelete( p_sys->p_rtsp_host );
 292     var_Destroy( p_this, "rtsp-session-timeout" );
 293     var_Destroy( p_this, "rtsp-throttle-users" );
 294     var_Destroy( p_this, "rtsp-raw-mux" );
 295
 296     /* TODO delete medias */
 297     free( p_sys->psz_path );
 298     free( p_sys->psz_raw_mux );
 299     free( p_sys );
 300 }
 301
 302 /*****************************************************************************
 303  * Media handling
 304  *****************************************************************************/
 305 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
 306                               input_item_t *p_item )
 307 {
 308     vod_sys_t *p_sys = p_vod->p_sys;
 309     vod_media_t *p_media = malloc( sizeof(vod_media_t) );
 310     int i;
 311
 312     if( !p_media )
 313     {
 314         msg_Err( p_vod, "not enough memory" );
 315         return NULL;
 316     }
 317
 318     memset( p_media, 0, sizeof(vod_media_t) );
 319     p_media->es = 0;
 320     p_media->psz_mux = 0;
 321     p_media->rtsp = 0;
 322     p_media->b_raw = VLC_FALSE;
 323
 324     asprintf( &p_media->psz_rtsp_path, "%s%s", p_sys->psz_path, psz_name );
 325     p_media->p_rtsp_url =
 326         httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
 327                             NULL, NULL );
 328
 329     if( !p_media->p_rtsp_url )
 330     {
 331         msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
 332         free( p_media->psz_rtsp_path );
 333         free( p_media );
 334         return NULL;
 335     }
 336
 337     msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
 338
 339     asprintf( &p_media->psz_rtsp_control_v4,
 340                "a=control:rtsp://%%s:%d%s/trackID=%%d\r\n",
 341                p_sys->i_port, p_media->psz_rtsp_path );
 342     asprintf( &p_media->psz_rtsp_control_v6,
 343                "a=control:rtsp://[%%s]:%d%s/trackID=%%d\r\n",
 344               p_sys->i_port, p_media->psz_rtsp_path );
 345
 346     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
 347                     RtspCallback, (void*)p_media );
 348     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
 349                     RtspCallback, (void*)p_media );
 350     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
 351                     RtspCallback, (void*)p_media );
 352     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
 353                     RtspCallback, (void*)p_media );
 354     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
 355                     RtspCallback, (void*)p_media );
 356     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 357                     RtspCallback, (void*)p_media );
 358
 359     p_media->p_vod = p_vod;
 360
 361     TAB_APPEND( p_sys->i_media, p_sys->media, p_media );
 362
 363     vlc_mutex_init( p_vod, &p_media->lock );
 364     p_media->psz_session_name = strdup("");
 365     p_media->psz_session_description = strdup("");
 366     p_media->psz_session_url = strdup("");
 367     p_media->psz_session_email = strdup("");
 368
 369     p_media->i_port_audio = 1234;
 370     p_media->i_port_video = 1236;
 371     p_media->i_port       = 1238;
 372     p_media->i_payload_type = 96;
 373
 374     p_media->i_sdp_id = mdate();
 375     p_media->i_sdp_version = 1;
 376     p_media->i_length = p_item->i_duration;
 377
 378     vlc_mutex_lock( &p_item->lock );
 379     msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
 380     for( i = 0; i < p_item->i_es; i++ )
 381     {
 382         MediaAddES( p_vod, p_media, p_item->es[i] );
 383     }
 384     vlc_mutex_unlock( &p_item->lock );
 385
 386     return p_media;
 387 }
 388
 389 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
 390 {
 391     vod_sys_t *p_sys = p_vod->p_sys;
 392
 393     msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
 394
 395     while( p_media->i_rtsp > 0 ) RtspClientDel( p_media, p_media->rtsp[0] );
 396     httpd_UrlDelete( p_media->p_rtsp_url );
 397     if( p_media->psz_rtsp_path ) free( p_media->psz_rtsp_path );
 398     if( p_media->psz_rtsp_control_v6 ) free( p_media->psz_rtsp_control_v6 );
 399     if( p_media->psz_rtsp_control_v4 ) free( p_media->psz_rtsp_control_v4 );
 400
 401     TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
 402
 403     while( p_media->i_es ) MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
 404
 405     vlc_mutex_destroy( &p_media->lock );
 406
 407     if( p_media->psz_session_name ) free( p_media->psz_session_name );
 408     if( p_media->psz_session_description ) free( p_media->psz_session_description );
 409     if( p_media->psz_session_url ) free( p_media->psz_session_url );
 410     if( p_media->psz_session_email ) free( p_media->psz_session_email );
 411     if( p_media->psz_mux ) free( p_media->psz_mux );
 412     free( p_media );
 413 }
 414
 415 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
 416 {
 417     media_es_t *p_es = malloc( sizeof(media_es_t) );
 418     char *psz_urlc;
 419
 420     if( !p_es ) return VLC_ENOMEM;
 421     memset( p_es, 0, sizeof(media_es_t) );
 422
 423     if( p_media->psz_mux ) free( p_media->psz_mux );
 424     p_media->psz_mux = NULL;
 425
 426     /* TODO: update SDP, etc... */
 427     asprintf( &psz_urlc, "%s/trackID=%d",
 428               p_media->psz_rtsp_path, p_media->i_es );
 429     msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
 430
 431     switch( p_fmt->i_codec )
 432     {
 433         case VLC_FOURCC( 's', '1', '6', 'b' ):
 434             if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
 435             {
 436                 p_es->i_payload_type = 11;
 437             }
 438             else if( p_fmt->audio.i_channels == 2 && p_fmt->audio.i_rate == 44100 )
 439             {
 440                 p_es->i_payload_type = 10;
 441             }
 442             else
 443             {
 444                 p_es->i_payload_type = p_media->i_payload_type++;
 445             }
 446             p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
 447             sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
 448                     p_fmt->audio.i_channels );
 449             break;
 450         case VLC_FOURCC( 'u', '8', ' ', ' ' ):
 451             p_es->i_payload_type = p_media->i_payload_type++;
 452             p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
 453             sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
 454                     p_fmt->audio.i_channels );
 455             break;
 456         case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
 457             p_es->i_payload_type = 14;
 458             p_es->psz_rtpmap = strdup( "MPA/90000" );
 459             break;
 460         case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
 461             p_es->i_payload_type = 32;
 462             p_es->psz_rtpmap = strdup( "MPV/90000" );
 463             break;
 464         case VLC_FOURCC( 'a', '5', '2', ' ' ):
 465             p_es->i_payload_type = p_media->i_payload_type++;
 466             p_es->psz_rtpmap = strdup( "ac3/90000" );
 467             break;
 468         case VLC_FOURCC( 'H', '2', '6', '3' ):
 469             p_es->i_payload_type = p_media->i_payload_type++;
 470             p_es->psz_rtpmap = strdup( "H263-1998/90000" );
 471             break;
 472         case VLC_FOURCC( 'h', '2', '6', '4' ):
 473             p_es->i_payload_type = p_media->i_payload_type++;
 474             p_es->psz_rtpmap = strdup( "H264/90000" );
 475             p_es->psz_fmtp = NULL;
 476             /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
 477             if( p_fmt->i_extra > 0 )
 478             {
 479                 uint8_t *p_buffer = p_fmt->p_extra;
 480                 int     i_buffer = p_fmt->i_extra;
 481                 char    *p_64_sps = NULL;
 482                 char    *p_64_pps = NULL;
 483                 char    hexa[6+1];
 484
 485                 while( i_buffer > 4 &&
 486                        p_buffer[0] == 0 && p_buffer[1] == 0 &&
 487                        p_buffer[2] == 0 && p_buffer[3] == 1 )
 488                 {
 489                     const int i_nal_type = p_buffer[4]&0x1f;
 490                     int i_offset;
 491                     int i_size      = 0;
 492
 493                     i_size = i_buffer;
 494                     for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
 495                     {
 496                         if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
 497                         {
 498                             /* we found another startcode */
 499                             i_size = i_offset;
 500                             break;
 501                         }
 502                     }
 503                     if( i_nal_type == 7 )
 504                     {
 505                         p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 506                         sprintf_hexa( hexa, &p_buffer[5], 3 );
 507                     }
 508                     else if( i_nal_type == 8 )
 509                     {
 510                         p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 511                     }
 512                     i_buffer -= i_size;
 513                     p_buffer += i_size;
 514                 }
 515                 /* */
 516                 if( p_64_sps && p_64_pps )
 517                     asprintf( &p_es->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
 518                 if( p_64_sps )
 519                     free( p_64_sps );
 520                 if( p_64_pps )
 521                     free( p_64_pps );
 522             }
 523             if( !p_es->psz_fmtp )
 524                 p_es->psz_fmtp = strdup( "packetization-mode=1" );
 525             break;
 526         case VLC_FOURCC( 'm', 'p', '4', 'v' ):
 527             p_es->i_payload_type = p_media->i_payload_type++;
 528             p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
 529             if( p_fmt->i_extra > 0 )
 530             {
 531                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 532                 p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
 533                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 534                 sprintf( p_es->psz_fmtp,
 535                         "profile-level-id=3; config=%s;", p_hexa );
 536                 free( p_hexa );
 537             }
 538             break;
 539         case VLC_FOURCC( 'm', 'p', '4', 'a' ):
 540             p_es->i_payload_type = p_media->i_payload_type++;
 541             p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
 542             sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
 543             if( p_fmt->i_extra > 0 )
 544             {
 545                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 546                 p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
 547                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 548                 sprintf( p_es->psz_fmtp,
 549                         "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
 550                         "config=%s; SizeLength=13;IndexLength=3; "
 551                         "IndexDeltaLength=3; Profile=1;", p_hexa );
 552                 free( p_hexa );
 553             }
 554             break;
 555         case VLC_FOURCC( 'm', 'p', '2', 't' ):
 556             p_media->psz_mux = strdup("ts");
 557             p_es->i_payload_type = 33;
 558             p_es->psz_rtpmap = strdup( "MP2T/90000" );
 559             break;
 560         case VLC_FOURCC( 'm', 'p', '2', 'p' ):
 561             p_media->psz_mux = strdup("ps");
 562             p_es->i_payload_type = p_media->i_payload_type++;
 563             p_es->psz_rtpmap = strdup( "MP2P/90000" );
 564             break;
 565         case VLC_FOURCC( 's', 'a', 'm', 'r' ):
 566             p_es->i_payload_type = p_media->i_payload_type++;
 567             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 568                                     "AMR/8000/2" : "AMR/8000" );
 569             p_es->psz_fmtp = strdup( "octet-align=1" );
 570             break;
 571         case VLC_FOURCC( 's', 'a', 'w', 'b' ):
 572             p_es->i_payload_type = p_media->i_payload_type++;
 573             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 574                                     "AMR-WB/16000/2" : "AMR-WB/16000" );
 575             p_es->psz_fmtp = strdup( "octet-align=1" );
 576             break;
 577
 578         default:
 579             msg_Err( p_vod, "cannot add this stream (unsupported "
 580                     "codec: %4.4s)", (char*)&p_fmt->i_codec );
 581             free( p_es );
 582             return VLC_EGENERIC;
 583     }
 584
 585     p_es->p_rtsp_url =
 586         httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
 587                             NULL );
 588
 589     if( !p_es->p_rtsp_url )
 590     {
 591         msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
 592         free( psz_urlc );
 593         free( p_es );
 594         return VLC_EGENERIC;
 595     }
 596     free( psz_urlc );
 597
 598     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
 599                     RtspCallbackES, (void*)p_es );
 600     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 601                     RtspCallbackES, (void*)p_es );
 602     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
 603                     RtspCallbackES, (void*)p_es );
 604     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
 605                     RtspCallbackES, (void*)p_es );
 606
 607     es_format_Copy( &p_es->fmt, p_fmt );
 608     p_es->p_vod = p_vod;
 609     p_es->p_media = p_media;
 610
 611 #if 0
 612     /* Choose the port */
 613     if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
 614     {
 615         p_es->i_port = p_media->i_port_audio;
 616         p_media->i_port_audio = 0;
 617     }
 618     else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
 619     {
 620         p_es->i_port = p_media->i_port_video;
 621         p_media->i_port_video = 0;
 622     }
 623     while( !p_es->i_port )
 624     {
 625         if( p_media->i_port != p_media->i_port_audio &&
 626             p_media->i_port != p_media->i_port_video )
 627         {
 628             p_es->i_port = p_media->i_port;
 629             p_media->i_port += 2;
 630             break;
 631         }
 632         p_media->i_port += 2;
 633     }
 634 #else
 635
 636     p_es->i_port = 0;
 637 #endif
 638
 639     vlc_mutex_lock( &p_media->lock );
 640     TAB_APPEND( p_media->i_es, p_media->es, p_es );
 641     vlc_mutex_unlock( &p_media->lock );
 642
 643     p_media->i_sdp_version++;
 644
 645     return VLC_SUCCESS;
 646 }
 647
 648 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
 649 {
 650     media_es_t *p_es = NULL;
 651     int i;
 652
 653     /* Find the ES */
 654     for( i = 0; i < p_media->i_es; i++ )
 655     {
 656         if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
 657             p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
 658             p_media->es[i]->fmt.i_id == p_fmt->i_id )
 659         {
 660             p_es = p_media->es[i];
 661         }
 662     }
 663     if( !p_es ) return;
 664
 665     msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );
 666
 667     vlc_mutex_lock( &p_media->lock );
 668     TAB_REMOVE( p_media->i_es, p_media->es, p_es );
 669     vlc_mutex_unlock( &p_media->lock );
 670
 671     if( p_es->psz_rtpmap ) free( p_es->psz_rtpmap );
 672     if( p_es->psz_fmtp ) free( p_es->psz_fmtp );
 673     p_media->i_sdp_version++;
 674
 675     if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
 676     es_format_Clean( &p_es->fmt );
 677 }
 678
 679 /****************************************************************************
 680  * RTSP server implementation
 681  ****************************************************************************/
 682 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
 683 {
 684     rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
 685
 686     if( !p_rtsp ) return NULL;
 687     memset( p_rtsp, 0, sizeof(rtsp_client_t) );
 688     p_rtsp->es = 0;
 689
 690     p_rtsp->psz_session = psz_session;
 691     TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 692
 693     p_media->p_vod->p_sys->i_connections++;
 694     msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
 695              psz_session, p_media->p_vod->p_sys->i_throttle_users );
 696
 697     return p_rtsp;
 698 }
 699
 700 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, char *psz_session )
 701 {
 702     int i;
 703
 704     for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
 705     {
 706         if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
 707         {
 708             return p_media->rtsp[i];
 709         }
 710     }
 711
 712     return NULL;
 713 }
 714
 715 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
 716 {
 717     p_media->p_vod->p_sys->i_connections--;
 718     msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
 719              p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
 720
 721     while( p_rtsp->i_es-- )
 722     {
 723         if( p_rtsp->es[p_rtsp->i_es]->psz_ip )
 724             free( p_rtsp->es[p_rtsp->i_es]->psz_ip );
 725         free( p_rtsp->es[p_rtsp->i_es] );
 726         if( !p_rtsp->i_es ) free( p_rtsp->es );
 727     }
 728
 729     TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 730
 731     free( p_rtsp->psz_session );
 732     free( p_rtsp );
 733 }
 734
 735 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
 736                          httpd_message_t *answer, httpd_message_t *query )
 737 {
 738     vod_media_t *p_media = (vod_media_t*)p_args;
 739     vod_t *p_vod = p_media->p_vod;
 740     char *psz_transport = NULL;
 741     char *psz_playnow = NULL; /* support option: x-playNow */
 742     char *psz_session = NULL;
 743     char *psz_cseq = NULL;
 744     rtsp_client_t *p_rtsp;
 745     int i_port = 0;
 746     int i_cseq = 0;
 747
 748     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
 749
 750     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
 751
 752     answer->i_proto   = HTTPD_PROTO_RTSP;
 753     answer->i_version = query->i_version;
 754     answer->i_type    = HTTPD_MSG_ANSWER;
 755     answer->i_body    = 0;
 756     answer->p_body    = NULL;
 757
 758     switch( query->i_type )
 759     {
 760         case HTTPD_MSG_SETUP:
 761         {
 762             psz_playnow = httpd_MsgGet( query, "x-playNow" );
 763             psz_transport = httpd_MsgGet( query, "Transport" );
 764             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
 765
 766             if( strstr( psz_transport, "unicast" ) &&
 767                 strstr( psz_transport, "client_port=" ) )
 768             {
 769                 rtsp_client_t *p_rtsp = NULL;
 770                 char ip[NI_MAXNUMERICHOST];
 771                 i_port = atoi( strstr( psz_transport, "client_port=" ) +
 772                                 strlen("client_port=") );
 773
 774                 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
 775                     strstr( psz_transport, "RAW/RAW/UDP" ) )
 776                 {
 777                     if( p_media->psz_mux ) free( p_media->psz_mux );
 778                     p_media->psz_mux = NULL;
 779                     p_media->psz_mux = strdup( p_vod->p_sys->psz_raw_mux );
 780                     p_media->b_raw = VLC_TRUE;
 781                 }
 782
 783                 if( httpd_ClientIP( cl, ip ) == NULL )
 784                 {
 785                     answer->i_status = 500;
 786                     answer->psz_status = strdup( "Internal server error" );
 787                     answer->i_body = 0;
 788                     answer->p_body = NULL;
 789                     break;
 790                 }
 791
 792                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
 793                          ip, i_port );
 794
 795                 psz_session = httpd_MsgGet( query, "Session" );
 796                 if( !psz_session || !*psz_session )
 797                 {
 798                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
 799                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
 800                     {
 801                         answer->i_status = 503;
 802                         answer->psz_status = strdup( "Too many connections" );
 803                         answer->i_body = 0;
 804                         answer->p_body = NULL;
 805                         break;
 806                     }
 807                     asprintf( &psz_session, "%d", rand() );
 808                     p_rtsp = RtspClientNew( p_media, psz_session );
 809                     if( !p_rtsp )
 810                     {
 811                         answer->i_status = 454;
 812                         answer->psz_status = strdup( "Unknown session id" );
 813                         answer->i_body = 0;
 814                         answer->p_body = NULL;
 815                         break;
 816                     }
 817                 }
 818                 else
 819                 {
 820                     p_rtsp = RtspClientGet( p_media, psz_session );
 821                     if( !p_rtsp )
 822                     {
 823                         answer->i_status = 454;
 824                         answer->psz_status = strdup( "Unknown session id" );
 825                         answer->i_body = 0;
 826                         answer->p_body = NULL;
 827                         break;
 828                     }
 829                 }
 830
 831                 answer->i_status = 200;
 832                 answer->psz_status = strdup( "OK" );
 833                 answer->i_body = 0;
 834                 answer->p_body = NULL;
 835
 836                 if( p_media->b_raw )
 837                 {
 838                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
 839                     {
 840                         httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
 841                                       i_port, i_port + 1 );
 842                     }
 843                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
 844                     {
 845                         httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
 846                                       i_port, i_port + 1 );
 847                     }
 848                 }
 849                 else
 850                     httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
 851                                   i_port, i_port + 1 );
 852             }
 853             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
 854             {
 855                 answer->i_status = 461;
 856                 answer->psz_status = strdup( "Unsupported Transport" );
 857                 answer->i_body = 0;
 858                 answer->p_body = NULL;
 859             }
 860
 861             /* Intentional fall-through on x-playNow option in RTSP request */
 862             if( !psz_playnow )
 863                 break;
 864         }
 865
 866         case HTTPD_MSG_PLAY:
 867         {
 868             char *psz_output, ip[NI_MAXNUMERICHOST];
 869             int i, i_port_audio = 0, i_port_video = 0;
 870
 871             /* for now only multicast so easy */
 872             if( !psz_playnow )
 873             {
 874                 answer->i_status = 200;
 875                 answer->psz_status = strdup( "OK" );
 876                 answer->i_body = 0;
 877                 answer->p_body = NULL;
 878             }
 879
 880             if( !psz_session )
 881                 psz_session = httpd_MsgGet( query, "Session" );
 882             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
 883
 884             p_rtsp = RtspClientGet( p_media, psz_session );
 885             if( !p_rtsp )
 886             {
 887                 answer->i_status = 500;
 888                 answer->psz_status = strdup( "Internal server error" );
 889                 answer->i_body = 0;
 890                 answer->p_body = NULL;
 891                 break;
 892             }
 893
 894             if( p_rtsp->b_playing )
 895             {
 896                 char *psz_position = httpd_MsgGet( query, "Range" );
 897                 char *psz_scale = httpd_MsgGet( query, "Scale" );
 898                 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
 899                 if( psz_position && !psz_scale )
 900                 {
 901                     double f_pos;
 902                     char *end;
 903
 904                     msg_Dbg( p_vod, "seeking request: %s", psz_position );
 905                     psz_position += 4;
 906                     /* FIXME: npt= is not necessarily formatted as a float */
 907                     f_pos = us_strtod( psz_position, &end );
 908                     if( end > psz_position )
 909                     {
 910                         f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
 911                         vod_MediaControl( p_vod, p_media, psz_session,
 912                                       VOD_MEDIA_SEEK, f_pos );
 913                     }
 914                     break;
 915                 }
 916                 if( psz_scale )
 917                 {
 918                     double f_scale = 0.0;
 919                     char *end;
 920
 921                     f_scale = us_strtod( psz_scale, &end );
 922                     if( end > psz_scale )
 923                     {
 924                         f_scale = (f_scale * 30.0);
 925                         if( psz_scale[0] == '-' ) /* rewind */
 926                         {
 927                             msg_Dbg( p_vod, "rewind request: %s", psz_scale );
 928                             vod_MediaControl( p_vod, p_media, psz_session,
 929                                                 VOD_MEDIA_REWIND, f_scale );
 930                         }
 931                         else if(psz_scale[0] != '1' ) /* fast-forward */
 932                         {
 933                             msg_Dbg( p_vod, "fastforward request: %s", psz_scale );
 934                             vod_MediaControl( p_vod, p_media, psz_session,
 935                                                 VOD_MEDIA_FORWARD, f_scale );
 936                         }
 937
 938                         if( p_rtsp->b_paused == VLC_TRUE )
 939                         {
 940                             p_rtsp->b_paused = VLC_FALSE;
 941                             vod_MediaControl( p_vod, p_media, psz_session,
 942                                                 VOD_MEDIA_PAUSE, psz_output );
 943                         }
 944                     }
 945                     break;
 946                 }
 947             }
 948
 949             if( p_rtsp->b_playing && p_rtsp->b_paused )
 950             {
 951                 vod_MediaControl( p_vod, p_media, psz_session,
 952                                   VOD_MEDIA_PAUSE );
 953                 p_rtsp->b_paused = VLC_FALSE;
 954                 break;
 955             }
 956             else if( p_rtsp->b_playing ) break;
 957
 958             if( httpd_ClientIP( cl, ip ) == NULL ) break;
 959
 960             p_rtsp->b_playing = VLC_TRUE;
 961
 962             /* FIXME for != 1 video and 1 audio */
 963             for( i = 0; i < p_rtsp->i_es; i++ )
 964             {
 965                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
 966                     i_port_audio = p_rtsp->es[i]->i_port;
 967                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
 968                     i_port_video = p_rtsp->es[i]->i_port;
 969             }
 970
 971             if( p_media->psz_mux )
 972             {
 973                 if( p_media->b_raw )
 974                 {
 975                     asprintf( &psz_output, "std{access=udp,dst=%s:%i,mux=%s}",
 976                               ip, i_port, p_media->psz_mux );
 977                 }
 978                 else
 979                 {
 980                     asprintf( &psz_output, "rtp{dst=%s,port=%i,mux=%s}",
 981                               ip, i_port_video, p_media->psz_mux );
 982                 }
 983             }
 984             else
 985             {
 986                 asprintf( &psz_output, "rtp{dst=%s,port-video=%i,"
 987                           "port-audio=%i}", ip, i_port_video, i_port_audio );
 988             }
 989
 990             vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PLAY,
 991                               psz_output );
 992             free( psz_output );
 993             break;
 994         }
 995
 996         case HTTPD_MSG_DESCRIBE:
 997         {
 998             char *psz_sdp =
 999                 SDPGenerate( p_media, cl );
1000
1001             if( psz_sdp != NULL )
1002             {
1003                 answer->i_status = 200;
1004                 answer->psz_status = strdup( "OK" );
1005                 httpd_MsgAdd( answer, "Content-type",  "%s", "application/sdp" );
1006
1007                 answer->p_body = (uint8_t *)psz_sdp;
1008                 answer->i_body = strlen( psz_sdp );
1009             }
1010             else
1011             {
1012                 answer->i_status = 500;
1013                 answer->psz_status = strdup( "Internal server error" );
1014                 answer->p_body = NULL;
1015                 answer->i_body = 0;
1016             }
1017             break;
1018         }
1019
1020         case HTTPD_MSG_PAUSE:
1021             psz_session = httpd_MsgGet( query, "Session" );
1022             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1023
1024             p_rtsp = RtspClientGet( p_media, psz_session );
1025             if( !p_rtsp ) break;
1026
1027             vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PAUSE );
1028             p_rtsp->b_paused = VLC_TRUE;
1029
1030             answer->i_status = 200;
1031             answer->psz_status = strdup( "OK" );
1032             answer->i_body = 0;
1033             answer->p_body = NULL;
1034             break;
1035
1036         case HTTPD_MSG_TEARDOWN:
1037             /* for now only multicast so easy again */
1038             answer->i_status = 200;
1039             answer->psz_status = strdup( "OK" );
1040             answer->i_body = 0;
1041             answer->p_body = NULL;
1042
1043             psz_session = httpd_MsgGet( query, "Session" );
1044             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1045
1046             p_rtsp = RtspClientGet( p_media, psz_session );
1047             if( !p_rtsp ) break;
1048
1049             vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_STOP );
1050             RtspClientDel( p_media, p_rtsp );
1051             break;
1052
1053         case HTTPD_MSG_GETPARAMETER:
1054             answer->i_status = 200;
1055             answer->psz_status = strdup( "OK" );
1056             answer->i_body = 0;
1057             answer->p_body = NULL;
1058             break;
1059
1060         default:
1061             return VLC_EGENERIC;
1062     }
1063
1064     httpd_MsgAdd( answer, "Server", "VLC Server" );
1065     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1066     psz_cseq = httpd_MsgGet( query, "Cseq" );
1067     psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1068     httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1069     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1070
1071     if( psz_session )
1072     {
1073          if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1074              httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1075                p_media->p_vod->p_sys->i_session_timeout );
1076          else
1077               httpd_MsgAdd( answer, "Session", "%s", psz_session );
1078     }
1079
1080     return VLC_SUCCESS;
1081 }
1082
1083 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1084                            httpd_message_t *answer, httpd_message_t *query )
1085 {
1086     media_es_t *p_es = (media_es_t*)p_args;
1087     vod_media_t *p_media = p_es->p_media;
1088     vod_t *p_vod = p_media->p_vod;
1089     rtsp_client_t *p_rtsp = NULL;
1090     char *psz_transport = NULL;
1091     char *psz_playnow = NULL; /* support option: x-playNow */
1092     char *psz_session = NULL;
1093     char *psz_position = NULL;
1094     char *psz_cseq = NULL;
1095     int i_cseq = 0;
1096     int i;
1097
1098     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1099
1100     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1101
1102     answer->i_proto   = HTTPD_PROTO_RTSP;
1103     answer->i_version = query->i_version;
1104     answer->i_type    = HTTPD_MSG_ANSWER;
1105     answer->i_body    = 0;
1106     answer->p_body      = NULL;
1107
1108     switch( query->i_type )
1109     {
1110         case HTTPD_MSG_SETUP:
1111             psz_playnow = httpd_MsgGet( query, "x-playNow" );
1112             psz_transport = httpd_MsgGet( query, "Transport" );
1113
1114             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1115
1116             if( strstr( psz_transport, "unicast" ) &&
1117                 strstr( psz_transport, "client_port=" ) )
1118             {
1119                 rtsp_client_t *p_rtsp = NULL;
1120                 rtsp_client_es_t *p_rtsp_es = NULL;
1121                 char ip[NI_MAXNUMERICHOST];
1122                 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1123                                 strlen("client_port=") );
1124
1125                 if( httpd_ClientIP( cl, ip ) == NULL )
1126                 {
1127                     answer->i_status = 500;
1128                     answer->psz_status = strdup( "Internal server error" );
1129                     answer->i_body = 0;
1130                     answer->p_body = NULL;
1131                     break;
1132                 }
1133
1134                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1135                         ip, i_port );
1136
1137                 psz_session = httpd_MsgGet( query, "Session" );
1138                 if( !psz_session || !*psz_session )
1139                 {
1140                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1141                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1142                     {
1143                         answer->i_status = 503;
1144                         answer->psz_status = strdup( "Too many connections" );
1145                         answer->i_body = 0;
1146                         answer->p_body = NULL;
1147                         break;
1148                     }
1149                     asprintf( &psz_session, "%d", rand() );
1150                     p_rtsp = RtspClientNew( p_media, psz_session );
1151                 }
1152                 else
1153                 {
1154                     p_rtsp = RtspClientGet( p_media, psz_session );
1155                     if( !p_rtsp )
1156                     {
1157                         answer->i_status = 454;
1158                         answer->psz_status = strdup( "Unknown session id" );
1159                         answer->i_body = 0;
1160                         answer->p_body = NULL;
1161                         break;
1162                     }
1163                 }
1164
1165                 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1166                 if( !p_rtsp_es )
1167                 {
1168                     answer->i_status = 500;
1169                     answer->psz_status = strdup( "Internal server error" );
1170                     answer->i_body = 0;
1171                     answer->p_body = NULL;
1172                     break;
1173                 }
1174                 p_rtsp_es->i_port = i_port;
1175                 p_rtsp_es->psz_ip = strdup( ip );
1176                 p_rtsp_es->p_media_es = p_es;
1177                 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1178
1179                 answer->i_status = 200;
1180                 answer->psz_status = strdup( "OK" );
1181                 answer->i_body = 0;
1182                 answer->p_body = NULL;
1183
1184                 if( p_media->b_raw )
1185                 {
1186                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1187                     {
1188                         httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
1189                                       p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1190                     }
1191                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1192                     {
1193                         httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
1194                                       p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1195                     }
1196                 }
1197                 else
1198                 {
1199                     httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
1200                                   p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1201                 }
1202             }
1203             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1204             {
1205                 answer->i_status = 461;
1206                 answer->psz_status = strdup( "Unsupported Transport" );
1207                 answer->i_body = 0;
1208                 answer->p_body = NULL;
1209             }
1210
1211             /* Intentional fall-through on x-playNow option in RTSP request */
1212             if( !psz_playnow )
1213                 break;
1214
1215         case HTTPD_MSG_PLAY:
1216             /* This is kind of a kludge. Should we only support Aggregate
1217              * Operations ? */
1218             psz_session = httpd_MsgGet( query, "Session" );
1219             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1220
1221             p_rtsp = RtspClientGet( p_media, psz_session );
1222
1223             psz_position = httpd_MsgGet( query, "Range" );
1224             if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1225             if( psz_position )
1226             {
1227                 double f_pos;
1228                 char *end;
1229
1230                 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1231
1232                 psz_position += 4;
1233                 /* FIXME: npt= is not necessarily formatted as a float */
1234                 f_pos = us_strtod( psz_position, &end );
1235                 if( end > psz_position )
1236                 {
1237                     f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1238                     vod_MediaControl( p_vod, p_media, psz_session,
1239                                       VOD_MEDIA_SEEK, f_pos );
1240                 }
1241             }
1242
1243             if( !psz_playnow )
1244             {
1245                 answer->i_status = 200;
1246                 answer->psz_status = strdup( "OK" );
1247                 answer->i_body = 0;
1248                 answer->p_body = NULL;
1249             }
1250             break;
1251
1252         case HTTPD_MSG_TEARDOWN:
1253             answer->i_status = 200;
1254             answer->psz_status = strdup( "OK" );
1255             answer->i_body = 0;
1256             answer->p_body = NULL;
1257
1258             psz_session = httpd_MsgGet( query, "Session" );
1259             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1260
1261             p_rtsp = RtspClientGet( p_media, psz_session );
1262             if( !p_rtsp ) break;
1263
1264             for( i = 0; i < p_rtsp->i_es; i++ )
1265             {
1266                 if( p_rtsp->es[i]->p_media_es == p_es )
1267                 {
1268                     if( p_rtsp->es[i]->psz_ip ) free( p_rtsp->es[i]->psz_ip );
1269                     TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1270                     break;
1271                 }
1272             }
1273
1274             if( !p_rtsp->i_es )
1275             {
1276                 vod_MediaControl( p_vod, p_media, psz_session,
1277                                   VOD_MEDIA_STOP );
1278                 RtspClientDel( p_media, p_rtsp );
1279             }
1280             break;
1281
1282         case HTTPD_MSG_PAUSE:
1283             /* This is kind of a kludge. Should we only support Aggregate
1284              * Operations ? */
1285             psz_session = httpd_MsgGet( query, "Session" );
1286             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1287
1288             p_rtsp = RtspClientGet( p_media, psz_session );
1289             if( !p_rtsp ) break;
1290
1291             vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PAUSE );
1292             p_rtsp->b_paused = VLC_TRUE;
1293
1294             answer->i_status = 200;
1295             answer->psz_status = strdup( "OK" );
1296             answer->i_body = 0;
1297             answer->p_body = NULL;
1298             break;
1299
1300         default:
1301             return VLC_EGENERIC;
1302             break;
1303     }
1304
1305     httpd_MsgAdd( answer, "Server", "VLC Server" );
1306     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1307     psz_cseq = httpd_MsgGet( query, "Cseq" );
1308     if (psz_cseq)
1309         i_cseq = atoi( psz_cseq );
1310     else
1311         i_cseq = 0;
1312     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1313     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1314
1315     if( psz_session )
1316         httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1317
1318     return VLC_SUCCESS;
1319 }
1320
1321 /*****************************************************************************
1322  * SDPGenerate: TODO
1323  * FIXME: need to be moved to a common place ?
1324  *****************************************************************************/
1325 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1326 {
1327     int i, i_size;
1328     char *p, *psz_sdp, ip[NI_MAXNUMERICHOST], ipv;
1329     const char *psz_control;
1330
1331     if( httpd_ServerIP( cl, ip ) == NULL )
1332         return NULL;
1333
1334     p = strchr( ip, '%' );
1335     if( p != NULL )
1336         *p = '\0'; /* remove scope if present */
1337
1338     ipv = ( strchr( ip, ':' ) != NULL ) ? '6' : '4';
1339
1340     /* Calculate size */
1341     i_size = sizeof( "v=0\r\n" ) +
1342         sizeof( "o=- * * IN IP4 \r\n" ) + 10 + NI_MAXNUMERICHOST +
1343         sizeof( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
1344         sizeof( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
1345         sizeof( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
1346         sizeof( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
1347         sizeof( "c=IN IP4 0.0.0.0\r\n" ) + 20 + 10 +
1348         sizeof( "t=0 0\r\n" ) + /* FIXME */
1349         sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
1350         sizeof( "a=range:npt=0-1000000000.000\r\n" );
1351
1352     psz_control = (ipv == '6') ? p_media->psz_rtsp_control_v6
1353                                : p_media->psz_rtsp_control_v4;
1354     for( i = 0; i < p_media->i_es; i++ )
1355     {
1356         media_es_t *p_es = p_media->es[i];
1357
1358         i_size += sizeof( "m=**d*o * RTP/AVP *\r\n" ) + 19;
1359         if( p_es->psz_rtpmap )
1360         {
1361             i_size += sizeof( "a=rtpmap:* *\r\n" ) +
1362                 strlen( p_es->psz_rtpmap ) + 9;
1363         }
1364         if( p_es->psz_fmtp )
1365         {
1366             i_size += sizeof( "a=fmtp:* *\r\n" ) +
1367                 strlen( p_es->psz_fmtp ) + 9;
1368         }
1369     }
1370     i_size += (strlen( psz_control ) + strlen( ip ) + 9) * p_media->i_es;
1371
1372     p = psz_sdp = malloc( i_size );
1373     p += sprintf( p, "v=0\r\n" );
1374     p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
1375                   p_media->i_sdp_id, p_media->i_sdp_version, ipv, ip );
1376     if( *p_media->psz_session_name )
1377         p += sprintf( p, "s=%s\r\n", p_media->psz_session_name );
1378     if( *p_media->psz_session_description )
1379         p += sprintf( p, "i=%s\r\n", p_media->psz_session_description );
1380     if( *p_media->psz_session_url )
1381         p += sprintf( p, "u=%s\r\n", p_media->psz_session_url );
1382     if( *p_media->psz_session_email )
1383         p += sprintf( p, "e=%s\r\n", p_media->psz_session_email );
1384
1385     p += sprintf( p, "c=IN IP%c %s\r\n", ipv, ipv == '6' ? "::" : "0.0.0.0" );
1386     p += sprintf( p, "t=0 0\r\n" ); /* FIXME */
1387     p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
1388
1389     if( p_media->i_length > 0 )
1390     {
1391         lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1392         p += sprintf( p, "a=range:npt=0-%lld.%03u\r\n", d.quot,
1393                       (unsigned)d.rem );
1394     }
1395
1396     for( i = 0; i < p_media->i_es; i++ )
1397     {
1398         media_es_t *p_es = p_media->es[i];
1399
1400         if( p_es->fmt.i_cat == AUDIO_ES )
1401         {
1402             p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
1403                           p_es->i_port, p_es->i_payload_type );
1404         }
1405         else if( p_es->fmt.i_cat == VIDEO_ES )
1406         {
1407             p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
1408                           p_es->i_port, p_es->i_payload_type );
1409         }
1410         else
1411         {
1412             continue;
1413         }
1414
1415         if( p_es->psz_rtpmap )
1416         {
1417             p += sprintf( p, "a=rtpmap:%d %s\r\n", p_es->i_payload_type,
1418                           p_es->psz_rtpmap );
1419         }
1420         if( p_es->psz_fmtp )
1421         {
1422             p += sprintf( p, "a=fmtp:%d %s\r\n", p_es->i_payload_type,
1423                           p_es->psz_fmtp );
1424         }
1425
1426         p += sprintf( p, psz_control, ip, i );
1427     }
1428
1429     return psz_sdp;
1430 }