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
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc_input.h>
  35 #include <vlc_sout.h>
  36 #include <vlc_block.h>
  37
  38 #include "vlc_httpd.h"
  39 #include "vlc_vod.h"
  40 #include "vlc_url.h"
  41 #include <vlc_network.h>
  42 #include <vlc_charset.h>
  43 #include <vlc_strings.h>
  44
  45 #include <errno.h>
  46
  47 /*****************************************************************************
  48  * Module descriptor
  49  *****************************************************************************/
  50 static int  Open ( vlc_object_t * );
  51 static void Close( vlc_object_t * );
  52
  53 #define HOST_TEXT N_( "RTSP host address" )
  54 #define HOST_LONGTEXT N_( \
  55     "This defines the address, port and path the RTSP VOD server will listen " \
  56     "on.\nSyntax is address:port/path. The default is to listen on all "\
  57     "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
  58     "only on the local interface, use \"localhost\" as address." )
  59
  60 #define THROTLE_TEXT N_( "Maximum number of connections" )
  61 #define THROTLE_LONGTEXT N_( "This limits the maximum number of clients " \
  62     "that can connect to the RTSP VOD. 0 means no limit."  )
  63
  64 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
  65
  66 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
  67     "session string" )
  68 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
  69     "to the RTSP session ID string. Setting it to a negative number removes " \
  70     "the timeout option entirely. This is needed by some IPTV STBs (such as " \
  71     "those made by HansunTech) which get confused by it. The default is 5." )
  72
  73 vlc_module_begin();
  74     set_shortname( _("RTSP VoD" ) );
  75     set_description( _("RTSP VoD server") );
  76     set_category( CAT_SOUT );
  77     set_subcategory( SUBCAT_SOUT_VOD );
  78     set_capability( "vod server", 1 );
  79     set_callbacks( Open, Close );
  80     add_shortcut( "rtsp" );
  81     add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, true );
  82     add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT,
  83                 RAWMUX_TEXT, true );
  84     add_integer( "rtsp-throttle-users", 0, NULL, THROTLE_TEXT,
  85                                            THROTLE_LONGTEXT, true );
  86     add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
  87                  SESSION_TIMEOUT_LONGTEXT, true );
  88 vlc_module_end();
  89
  90 /*****************************************************************************
  91  * Exported prototypes
  92  *****************************************************************************/
  93
  94 typedef struct media_es_t media_es_t;
  95
  96 typedef struct
  97 {
  98     media_es_t *p_media_es;
  99     char *psz_ip;
 100     int i_port;
 101
 102 } rtsp_client_es_t;
 103
 104 typedef struct
 105 {
 106     char *psz_session;
 107     int64_t i_last; /* for timeout */
 108
 109     bool b_playing; /* is it in "play" state */
 110     bool b_paused; /* is it in "pause" state */
 111
 112     int i_es;
 113     rtsp_client_es_t **es;
 114
 115 } rtsp_client_t;
 116
 117 struct media_es_t
 118 {
 119     /* VoD server */
 120     vod_t *p_vod;
 121
 122     /* RTSP server */
 123     httpd_url_t *p_rtsp_url;
 124
 125     vod_media_t *p_media;
 126
 127     es_format_t fmt;
 128     int         i_port;
 129     uint8_t     i_payload_type;
 130     char        *psz_rtpmap;
 131     char        *psz_fmtp;
 132
 133 };
 134
 135 struct vod_media_t
 136 {
 137     int id;
 138
 139     /* VoD server */
 140     vod_t *p_vod;
 141
 142     /* RTSP server */
 143     httpd_url_t  *p_rtsp_url;
 144     char         *psz_rtsp_control_v4;
 145     char         *psz_rtsp_control_v6;
 146     char         *psz_rtsp_path;
 147
 148     int  i_port;
 149     int  i_port_audio;
 150     int  i_port_video;
 151     int  i_ttl;
 152     int  i_payload_type;
 153
 154     int64_t i_sdp_id;
 155     int     i_sdp_version;
 156
 157     bool b_multicast;
 158
 159     vlc_mutex_t lock;
 160
 161     /* ES list */
 162     int        i_es;
 163     media_es_t **es;
 164     char       *psz_mux;
 165     bool  b_raw;
 166
 167     /* RTSP client */
 168     int           i_rtsp;
 169     rtsp_client_t **rtsp;
 170
 171     /* Infos */
 172     char *psz_session_name;
 173     char *psz_session_description;
 174     char *psz_session_url;
 175     char *psz_session_email;
 176     mtime_t i_length;
 177 };
 178
 179 struct vod_sys_t
 180 {
 181     /* RTSP server */
 182     httpd_host_t *p_rtsp_host;
 183     char *psz_path;
 184     int i_port;
 185     int i_throttle_users;
 186     int i_connections;
 187
 188     char *psz_raw_mux;
 189
 190     int i_session_timeout;
 191
 192     /* List of media */
 193     vlc_mutex_t lock_media;
 194     int i_media_id;
 195     int i_media;
 196     vod_media_t **media;
 197
 198     /* */
 199     block_fifo_t *p_fifo_cmd;
 200 };
 201
 202 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
 203 typedef enum
 204 {
 205     RTSP_CMD_TYPE_NONE,  /* Exit requested */
 206
 207     RTSP_CMD_TYPE_PLAY,
 208     RTSP_CMD_TYPE_PAUSE,
 209     RTSP_CMD_TYPE_STOP,
 210     RTSP_CMD_TYPE_SEEK,
 211     RTSP_CMD_TYPE_REWIND,
 212     RTSP_CMD_TYPE_FORWARD,
 213 } rtsp_cmd_type_t;
 214
 215 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
 216 static void         MediaDel( vod_t *, vod_media_t * );
 217 static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
 218 static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );
 219
 220 static void CommandThread( vlc_object_t *p_this );
 221 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *, const char *psz_session,
 222                          double f_arg, const char *psz_arg );
 223
 224 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
 225 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
 226 static void           RtspClientDel( vod_media_t *, rtsp_client_t * );
 227
 228 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
 229                          httpd_message_t *, const httpd_message_t * );
 230 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
 231                            httpd_message_t *, const httpd_message_t * );
 232
 233 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
 234
 235 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
 236 {
 237     static const char hex[16] = "0123456789abcdef";
 238     int i;
 239
 240     for( i = 0; i < i_data; i++ )
 241     {
 242         s[2*i+0] = hex[(p_data[i]>>4)&0xf];
 243         s[2*i+1] = hex[(p_data[i]   )&0xf];
 244     }
 245     s[2*i_data] = '\0';
 246 }
 247
 248 /*****************************************************************************
 249  * Open: Starts the RTSP server module
 250  *****************************************************************************/
 251 static int Open( vlc_object_t *p_this )
 252 {
 253     vod_t *p_vod = (vod_t *)p_this;
 254     vod_sys_t *p_sys = 0;
 255     char *psz_url = 0;
 256     vlc_url_t url;
 257
 258     psz_url = config_GetPsz( p_vod, "rtsp-host" );
 259     vlc_UrlParse( &url, psz_url, 0 );
 260     free( psz_url );
 261
 262     if( url.i_port <= 0 ) url.i_port = 554;
 263
 264     p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
 265     if( !p_sys ) goto error;
 266     p_sys->p_rtsp_host = 0;
 267
 268     p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
 269
 270     p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
 271     msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
 272     p_sys->i_connections = 0;
 273
 274     p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
 275
 276     p_sys->p_rtsp_host =
 277         httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
 278     if( !p_sys->p_rtsp_host )
 279     {
 280         msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
 281                  url.psz_host, url.i_port );
 282         goto error;
 283     }
 284
 285     p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
 286     p_sys->i_port = url.i_port;
 287
 288     vlc_UrlClean( &url );
 289
 290     vlc_mutex_init( p_vod, &p_sys->lock_media );
 291
 292     TAB_INIT( p_sys->i_media, p_sys->media );
 293     p_sys->i_media_id = 0;
 294
 295     p_vod->pf_media_new = MediaNew;
 296     p_vod->pf_media_del = MediaDel;
 297     p_vod->pf_media_add_es = MediaAddES;
 298     p_vod->pf_media_del_es = MediaDelES;
 299
 300     p_sys->p_fifo_cmd = block_FifoNew( p_vod );
 301     if( vlc_thread_create( p_vod, "rtsp vod thread", CommandThread,
 302                            VLC_THREAD_PRIORITY_LOW, false ) )
 303     {
 304         msg_Err( p_vod, "cannot spawn rtsp vod thread" );
 305         block_FifoRelease( p_sys->p_fifo_cmd );
 306         free( p_sys->psz_path );
 307         goto error;
 308     }
 309
 310     return VLC_SUCCESS;
 311
 312 error:
 313     if( p_sys )
 314     {
 315         if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
 316         free( p_sys->psz_raw_mux );
 317         free( p_sys );
 318     }
 319     vlc_UrlClean( &url );
 320
 321     return VLC_EGENERIC;
 322 }
 323
 324 /*****************************************************************************
 325  * Close:
 326  *****************************************************************************/
 327 static void Close( vlc_object_t * p_this )
 328 {
 329     vod_t *p_vod = (vod_t *)p_this;
 330     vod_sys_t *p_sys = p_vod->p_sys;
 331
 332     /* Stop command thread */
 333     vlc_object_kill( p_vod );
 334     CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0.0, NULL );
 335     vlc_thread_join( p_vod );
 336
 337     block_FifoRelease( p_sys->p_fifo_cmd );
 338
 339     httpd_HostDelete( p_sys->p_rtsp_host );
 340     var_Destroy( p_this, "rtsp-session-timeout" );
 341     var_Destroy( p_this, "rtsp-throttle-users" );
 342     var_Destroy( p_this, "rtsp-raw-mux" );
 343
 344     /* Check VLM is not buggy */
 345     if( p_sys->i_media > 0 )
 346         msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
 347     TAB_CLEAN( p_sys->i_media, p_sys->media );
 348
 349     vlc_mutex_destroy( &p_sys->lock_media );
 350
 351     free( p_sys->psz_path );
 352     free( p_sys->psz_raw_mux );
 353     free( p_sys );
 354 }
 355
 356 /*****************************************************************************
 357  * Media handling
 358  *****************************************************************************/
 359 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
 360                               input_item_t *p_item )
 361 {
 362     vod_sys_t *p_sys = p_vod->p_sys;
 363     vod_media_t *p_media = malloc( sizeof(vod_media_t) );
 364     int i;
 365
 366     if( !p_media )
 367     {
 368         msg_Err( p_vod, "not enough memory" );
 369         return NULL;
 370     }
 371
 372     memset( p_media, 0, sizeof(vod_media_t) );
 373     p_media->id = p_sys->i_media_id++;
 374     TAB_INIT( p_media->i_es, p_media->es );
 375     p_media->psz_mux = 0;
 376     TAB_INIT( p_media->i_rtsp, p_media->rtsp );
 377     p_media->b_raw = false;
 378
 379     if( asprintf( &p_media->psz_rtsp_path, "%s%s",
 380                   p_sys->psz_path, psz_name ) <0 )
 381         return NULL;
 382     p_media->p_rtsp_url =
 383         httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
 384                             NULL, NULL );
 385
 386     if( !p_media->p_rtsp_url )
 387     {
 388         msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
 389         free( p_media->psz_rtsp_path );
 390         free( p_media );
 391         return NULL;
 392     }
 393
 394     msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
 395
 396     if( asprintf( &p_media->psz_rtsp_control_v4,
 397                "a=control:rtsp://%%s:%d%s/trackID=%%d\r\n",
 398                p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
 399         return NULL;
 400     if( asprintf( &p_media->psz_rtsp_control_v6,
 401                "a=control:rtsp://[%%s]:%d%s/trackID=%%d\r\n",
 402               p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
 403         return NULL;
 404
 405     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
 406                     RtspCallback, (void*)p_media );
 407     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
 408                     RtspCallback, (void*)p_media );
 409     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
 410                     RtspCallback, (void*)p_media );
 411     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
 412                     RtspCallback, (void*)p_media );
 413     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
 414                     RtspCallback, (void*)p_media );
 415     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 416                     RtspCallback, (void*)p_media );
 417
 418     p_media->p_vod = p_vod;
 419
 420     vlc_mutex_lock( &p_sys->lock_media );
 421     TAB_APPEND( p_sys->i_media, p_sys->media, p_media );
 422     vlc_mutex_unlock( &p_sys->lock_media );
 423
 424     vlc_mutex_init( p_vod, &p_media->lock );
 425     p_media->psz_session_name = strdup("");
 426     p_media->psz_session_description = strdup("");
 427     p_media->psz_session_url = strdup("");
 428     p_media->psz_session_email = strdup("");
 429
 430     p_media->i_port_audio = 1234;
 431     p_media->i_port_video = 1236;
 432     p_media->i_port       = 1238;
 433     p_media->i_payload_type = 96;
 434
 435     p_media->i_sdp_id = mdate();
 436     p_media->i_sdp_version = 1;
 437     p_media->i_length = input_item_GetDuration( p_item );
 438
 439     vlc_mutex_lock( &p_item->lock );
 440     msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
 441     for( i = 0; i < p_item->i_es; i++ )
 442     {
 443         MediaAddES( p_vod, p_media, p_item->es[i] );
 444     }
 445     vlc_mutex_unlock( &p_item->lock );
 446
 447     return p_media;
 448 }
 449
 450 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
 451 {
 452     vod_sys_t *p_sys = p_vod->p_sys;
 453
 454     msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
 455
 456     vlc_mutex_lock( &p_sys->lock_media );
 457     TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
 458     vlc_mutex_unlock( &p_sys->lock_media );
 459
 460     while( p_media->i_rtsp > 0 )
 461         RtspClientDel( p_media, p_media->rtsp[0] );
 462     TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
 463
 464     httpd_UrlDelete( p_media->p_rtsp_url );
 465     free( p_media->psz_rtsp_path );
 466     free( p_media->psz_rtsp_control_v6 );
 467     free( p_media->psz_rtsp_control_v4 );
 468
 469     while( p_media->i_es )
 470         MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
 471     TAB_CLEAN( p_media->i_es, p_media->es );
 472
 473     vlc_mutex_destroy( &p_media->lock );
 474
 475     free( p_media->psz_session_name );
 476     free( p_media->psz_session_description );
 477     free( p_media->psz_session_url );
 478     free( p_media->psz_session_email );
 479     free( p_media->psz_mux );
 480     free( p_media );
 481 }
 482
 483 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
 484 {
 485     media_es_t *p_es = malloc( sizeof(media_es_t) );
 486     char *psz_urlc;
 487
 488     if( !p_es ) return VLC_ENOMEM;
 489     memset( p_es, 0, sizeof(media_es_t) );
 490
 491     free( p_media->psz_mux );
 492     p_media->psz_mux = NULL;
 493
 494     /* TODO: update SDP, etc... */
 495     if( asprintf( &psz_urlc, "%s/trackID=%d",
 496               p_media->psz_rtsp_path, p_media->i_es ) < 0 )
 497         return VLC_ENOMEM;
 498     msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
 499
 500     switch( p_fmt->i_codec )
 501     {
 502         case VLC_FOURCC( 's', '1', '6', 'b' ):
 503             if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
 504             {
 505                 p_es->i_payload_type = 11;
 506             }
 507             else if( p_fmt->audio.i_channels == 2 &&
 508                      p_fmt->audio.i_rate == 44100 )
 509             {
 510                 p_es->i_payload_type = 10;
 511             }
 512             else
 513             {
 514                 p_es->i_payload_type = p_media->i_payload_type++;
 515             }
 516             p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
 517             sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
 518                     p_fmt->audio.i_channels );
 519             break;
 520         case VLC_FOURCC( 'u', '8', ' ', ' ' ):
 521             p_es->i_payload_type = p_media->i_payload_type++;
 522             p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
 523             sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
 524                     p_fmt->audio.i_channels );
 525             break;
 526         case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
 527             p_es->i_payload_type = 14;
 528             p_es->psz_rtpmap = strdup( "MPA/90000" );
 529             break;
 530         case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
 531             p_es->i_payload_type = 32;
 532             p_es->psz_rtpmap = strdup( "MPV/90000" );
 533             break;
 534         case VLC_FOURCC( 'a', '5', '2', ' ' ):
 535             p_es->i_payload_type = p_media->i_payload_type++;
 536             p_es->psz_rtpmap = strdup( "ac3/90000" );
 537             break;
 538         case VLC_FOURCC( 'H', '2', '6', '3' ):
 539             p_es->i_payload_type = p_media->i_payload_type++;
 540             p_es->psz_rtpmap = strdup( "H263-1998/90000" );
 541             break;
 542         case VLC_FOURCC( 'h', '2', '6', '4' ):
 543             p_es->i_payload_type = p_media->i_payload_type++;
 544             p_es->psz_rtpmap = strdup( "H264/90000" );
 545             p_es->psz_fmtp = NULL;
 546             /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
 547             if( p_fmt->i_extra > 0 )
 548             {
 549                 uint8_t *p_buffer = p_fmt->p_extra;
 550                 int     i_buffer = p_fmt->i_extra;
 551                 char    *p_64_sps = NULL;
 552                 char    *p_64_pps = NULL;
 553                 char    hexa[6+1];
 554
 555                 while( i_buffer > 4 &&
 556                        p_buffer[0] == 0 && p_buffer[1] == 0 &&
 557                        p_buffer[2] == 0 && p_buffer[3] == 1 )
 558                 {
 559                     const int i_nal_type = p_buffer[4]&0x1f;
 560                     int i_offset;
 561                     int i_size      = 0;
 562
 563                     i_size = i_buffer;
 564                     for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
 565                     {
 566                         if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
 567                         {
 568                             /* we found another startcode */
 569                             i_size = i_offset;
 570                             break;
 571                         }
 572                     }
 573                     if( i_nal_type == 7 )
 574                     {
 575                         p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 576                         sprintf_hexa( hexa, &p_buffer[5], 3 );
 577                     }
 578                     else if( i_nal_type == 8 )
 579                     {
 580                         p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 581                     }
 582                     i_buffer -= i_size;
 583                     p_buffer += i_size;
 584                 }
 585                 /* */
 586                 if( p_64_sps && p_64_pps )
 587                     if( asprintf( &p_es->psz_fmtp,
 588                                   "packetization-mode=1;profile-level-id=%s;"
 589                                   "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
 590                                   p_64_pps ) < 0 )
 591                         return VLC_ENOMEM;
 592                 free( p_64_sps );
 593                 free( p_64_pps );
 594             }
 595             if( !p_es->psz_fmtp )
 596                 p_es->psz_fmtp = strdup( "packetization-mode=1" );
 597             break;
 598         case VLC_FOURCC( 'm', 'p', '4', 'v' ):
 599             p_es->i_payload_type = p_media->i_payload_type++;
 600             p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
 601             if( p_fmt->i_extra > 0 )
 602             {
 603                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 604                 p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
 605                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 606                 sprintf( p_es->psz_fmtp,
 607                         "profile-level-id=3; config=%s;", p_hexa );
 608                 free( p_hexa );
 609             }
 610             break;
 611         case VLC_FOURCC( 'm', 'p', '4', 'a' ):
 612             p_es->i_payload_type = p_media->i_payload_type++;
 613             p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
 614             sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
 615             if( p_fmt->i_extra > 0 )
 616             {
 617                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 618                 p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
 619                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 620                 sprintf( p_es->psz_fmtp,
 621                         "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
 622                         "config=%s; SizeLength=13;IndexLength=3; "
 623                         "IndexDeltaLength=3; Profile=1;", p_hexa );
 624                 free( p_hexa );
 625             }
 626             break;
 627         case VLC_FOURCC( 'm', 'p', '2', 't' ):
 628             p_media->psz_mux = strdup("ts");
 629             p_es->i_payload_type = 33;
 630             p_es->psz_rtpmap = strdup( "MP2T/90000" );
 631             break;
 632         case VLC_FOURCC( 'm', 'p', '2', 'p' ):
 633             p_media->psz_mux = strdup("ps");
 634             p_es->i_payload_type = p_media->i_payload_type++;
 635             p_es->psz_rtpmap = strdup( "MP2P/90000" );
 636             break;
 637         case VLC_FOURCC( 's', 'a', 'm', 'r' ):
 638             p_es->i_payload_type = p_media->i_payload_type++;
 639             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 640                                     "AMR/8000/2" : "AMR/8000" );
 641             p_es->psz_fmtp = strdup( "octet-align=1" );
 642             break;
 643         case VLC_FOURCC( 's', 'a', 'w', 'b' ):
 644             p_es->i_payload_type = p_media->i_payload_type++;
 645             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 646                                     "AMR-WB/16000/2" : "AMR-WB/16000" );
 647             p_es->psz_fmtp = strdup( "octet-align=1" );
 648             break;
 649
 650         default:
 651             msg_Err( p_vod, "cannot add this stream (unsupported "
 652                     "codec: %4.4s)", (char*)&p_fmt->i_codec );
 653             free( p_es );
 654             return VLC_EGENERIC;
 655     }
 656
 657     p_es->p_rtsp_url =
 658         httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
 659                             NULL );
 660
 661     if( !p_es->p_rtsp_url )
 662     {
 663         msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
 664         free( psz_urlc );
 665         free( p_es );
 666         return VLC_EGENERIC;
 667     }
 668     free( psz_urlc );
 669
 670     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
 671                     RtspCallbackES, (void*)p_es );
 672     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 673                     RtspCallbackES, (void*)p_es );
 674     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
 675                     RtspCallbackES, (void*)p_es );
 676     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
 677                     RtspCallbackES, (void*)p_es );
 678
 679     es_format_Copy( &p_es->fmt, p_fmt );
 680     p_es->p_vod = p_vod;
 681     p_es->p_media = p_media;
 682
 683 #if 0
 684     /* Choose the port */
 685     if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
 686     {
 687         p_es->i_port = p_media->i_port_audio;
 688         p_media->i_port_audio = 0;
 689     }
 690     else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
 691     {
 692         p_es->i_port = p_media->i_port_video;
 693         p_media->i_port_video = 0;
 694     }
 695     while( !p_es->i_port )
 696     {
 697         if( p_media->i_port != p_media->i_port_audio &&
 698             p_media->i_port != p_media->i_port_video )
 699         {
 700             p_es->i_port = p_media->i_port;
 701             p_media->i_port += 2;
 702             break;
 703         }
 704         p_media->i_port += 2;
 705     }
 706 #else
 707
 708     p_es->i_port = 0;
 709 #endif
 710
 711     vlc_mutex_lock( &p_media->lock );
 712     TAB_APPEND( p_media->i_es, p_media->es, p_es );
 713     vlc_mutex_unlock( &p_media->lock );
 714
 715     p_media->i_sdp_version++;
 716
 717     return VLC_SUCCESS;
 718 }
 719
 720 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
 721 {
 722     media_es_t *p_es = NULL;
 723     int i;
 724
 725     /* Find the ES */
 726     for( i = 0; i < p_media->i_es; i++ )
 727     {
 728         if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
 729             p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
 730             p_media->es[i]->fmt.i_id == p_fmt->i_id )
 731         {
 732             p_es = p_media->es[i];
 733         }
 734     }
 735     if( !p_es ) return;
 736
 737     msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );
 738
 739     vlc_mutex_lock( &p_media->lock );
 740     TAB_REMOVE( p_media->i_es, p_media->es, p_es );
 741     vlc_mutex_unlock( &p_media->lock );
 742
 743     free( p_es->psz_rtpmap );
 744     free( p_es->psz_fmtp );
 745     p_media->i_sdp_version++;
 746
 747     if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
 748     es_format_Clean( &p_es->fmt );
 749     free( p_es );
 750 }
 751
 752 /* */
 753 typedef struct
 754 {
 755     int i_type;
 756     int i_media_id;
 757     //vod_media_t *p_media;
 758     char *psz_session;
 759     char *psz_arg;
 760     double f_arg;
 761 } rtsp_cmd_t;
 762
 763 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session,
 764                          double f_arg, const char *psz_arg )
 765 {
 766     rtsp_cmd_t cmd;
 767     block_t *p_cmd;
 768
 769     memset( &cmd, 0, sizeof(cmd) );
 770     cmd.i_type = i_type;
 771     if( p_media )
 772         cmd.i_media_id = p_media->id;
 773     if( psz_session )
 774         cmd.psz_session = strdup(psz_session);
 775     cmd.f_arg = f_arg;
 776     if( psz_arg )
 777         cmd.psz_arg = strdup(psz_arg);
 778
 779     p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
 780     memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
 781
 782     block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
 783 }
 784
 785 static void CommandThread( vlc_object_t *p_this )
 786 {
 787     vod_t *p_vod = (vod_t*)p_this;
 788     vod_sys_t *p_sys = p_vod->p_sys;
 789
 790     while( !p_vod->b_die )
 791     {
 792         block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
 793         rtsp_cmd_t cmd;
 794         vod_media_t *p_media = NULL;
 795         int i;
 796
 797         if( !p_block_cmd )
 798             break;
 799
 800         memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
 801         block_Release( p_block_cmd );
 802
 803         if( cmd.i_type == RTSP_CMD_TYPE_NONE )
 804             break;
 805
 806         /* */
 807         vlc_mutex_lock( &p_sys->lock_media );
 808         for( i = 0; i < p_sys->i_media; i++ )
 809         {
 810             if( p_sys->media[i]->id == cmd.i_media_id )
 811                 break;
 812         }
 813         if( i >= p_sys->i_media )
 814             goto next;
 815         p_media = p_sys->media[i];
 816
 817         switch( cmd.i_type )
 818         {
 819         case RTSP_CMD_TYPE_PLAY:
 820             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 821                               VOD_MEDIA_PLAY, cmd.psz_arg );
 822             break;
 823         case RTSP_CMD_TYPE_PAUSE:
 824             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 825                               VOD_MEDIA_PAUSE );
 826             break;
 827
 828         case RTSP_CMD_TYPE_STOP:
 829             vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
 830             break;
 831
 832         case RTSP_CMD_TYPE_SEEK:
 833             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 834                               VOD_MEDIA_SEEK, cmd.f_arg );
 835             break;
 836
 837         case RTSP_CMD_TYPE_REWIND:
 838             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 839                               VOD_MEDIA_REWIND, cmd.f_arg );
 840             break;
 841
 842         case RTSP_CMD_TYPE_FORWARD:
 843             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 844                               VOD_MEDIA_FORWARD, cmd.f_arg );
 845             break;
 846
 847         default:
 848             break;
 849         }
 850
 851     next:
 852         vlc_mutex_unlock( &p_sys->lock_media );
 853         free( cmd.psz_session );
 854         free( cmd.psz_arg );
 855     }
 856 }
 857
 858 /****************************************************************************
 859  * RTSP server implementation
 860  ****************************************************************************/
 861 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
 862 {
 863     rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
 864
 865     if( !p_rtsp ) return NULL;
 866     memset( p_rtsp, 0, sizeof(rtsp_client_t) );
 867     p_rtsp->es = 0;
 868
 869     p_rtsp->psz_session = psz_session;
 870     TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 871
 872     p_media->p_vod->p_sys->i_connections++;
 873     msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
 874              psz_session, p_media->p_vod->p_sys->i_throttle_users );
 875
 876     return p_rtsp;
 877 }
 878
 879 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
 880 {
 881     int i;
 882
 883     for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
 884     {
 885         if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
 886             return p_media->rtsp[i];
 887     }
 888
 889     return NULL;
 890 }
 891
 892 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
 893 {
 894     p_media->p_vod->p_sys->i_connections--;
 895     msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
 896              p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
 897
 898     while( p_rtsp->i_es-- )
 899     {
 900         free( p_rtsp->es[p_rtsp->i_es]->psz_ip );
 901         free( p_rtsp->es[p_rtsp->i_es] );
 902         if( !p_rtsp->i_es ) free( p_rtsp->es );
 903     }
 904
 905     TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 906
 907     free( p_rtsp->psz_session );
 908     free( p_rtsp );
 909 }
 910
 911 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
 912                          httpd_message_t *answer, const httpd_message_t *query )
 913 {
 914     vod_media_t *p_media = (vod_media_t*)p_args;
 915     vod_t *p_vod = p_media->p_vod;
 916     const char *psz_transport = NULL;
 917     const char *psz_playnow = NULL; /* support option: x-playNow */
 918     const char *psz_session = NULL;
 919     const char *psz_cseq = NULL;
 920     rtsp_client_t *p_rtsp;
 921     int i_port = 0;
 922     int i_cseq = 0;
 923
 924     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
 925
 926     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
 927
 928     answer->i_proto   = HTTPD_PROTO_RTSP;
 929     answer->i_version = query->i_version;
 930     answer->i_type    = HTTPD_MSG_ANSWER;
 931     answer->i_body    = 0;
 932     answer->p_body    = NULL;
 933
 934     switch( query->i_type )
 935     {
 936         case HTTPD_MSG_SETUP:
 937         {
 938             psz_playnow = httpd_MsgGet( query, "x-playNow" );
 939             psz_transport = httpd_MsgGet( query, "Transport" );
 940             if( psz_transport == NULL )
 941             {
 942                 answer->i_status = 400;
 943                 break;
 944             }
 945             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
 946
 947             if( strstr( psz_transport, "unicast" ) &&
 948                 strstr( psz_transport, "client_port=" ) )
 949             {
 950                 rtsp_client_t *p_rtsp = NULL;
 951                 char ip[NI_MAXNUMERICHOST];
 952                 i_port = atoi( strstr( psz_transport, "client_port=" ) +
 953                                 strlen("client_port=") );
 954
 955                 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
 956                     strstr( psz_transport, "RAW/RAW/UDP" ) )
 957                 {
 958                     free( p_media->psz_mux );
 959                     p_media->psz_mux = NULL;
 960                     p_media->psz_mux = strdup( p_vod->p_sys->psz_raw_mux );
 961                     p_media->b_raw = true;
 962                 }
 963
 964                 if( httpd_ClientIP( cl, ip ) == NULL )
 965                 {
 966                     answer->i_status = 500;
 967                     answer->i_body = 0;
 968                     answer->p_body = NULL;
 969                     break;
 970                 }
 971
 972                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
 973                          ip, i_port );
 974
 975                 psz_session = httpd_MsgGet( query, "Session" );
 976                 if( !psz_session || !*psz_session )
 977                 {
 978                     char *psz_new;
 979                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
 980                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
 981                     {
 982                         answer->i_status = 503;
 983                         answer->i_body = 0;
 984                         answer->p_body = NULL;
 985                         break;
 986                     }
 987                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
 988                         return VLC_ENOMEM;
 989                     psz_session = psz_new;
 990
 991                     p_rtsp = RtspClientNew( p_media, psz_new );
 992                     if( !p_rtsp )
 993                     {
 994                         answer->i_status = 454;
 995                         answer->i_body = 0;
 996                         answer->p_body = NULL;
 997                         break;
 998                     }
 999                 }
1000                 else
1001                 {
1002                     p_rtsp = RtspClientGet( p_media, psz_session );
1003                     if( !p_rtsp )
1004                     {
1005                         answer->i_status = 454;
1006                         answer->i_body = 0;
1007                         answer->p_body = NULL;
1008                         break;
1009                     }
1010                 }
1011
1012                 answer->i_status = 200;
1013                 answer->i_body = 0;
1014                 answer->p_body = NULL;
1015
1016                 if( p_media->b_raw )
1017                 {
1018                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1019                     {
1020                         httpd_MsgAdd( answer, "Transport",
1021                                       "MP2T/H2221/UDP;client_port=%d-%d",
1022                                       i_port, i_port + 1 );
1023                     }
1024                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1025                     {
1026                         httpd_MsgAdd( answer, "Transport",
1027                                       "RAW/RAW/UDP;client_port=%d-%d",
1028                                       i_port, i_port + 1 );
1029                     }
1030                 }
1031                 else
1032                     httpd_MsgAdd( answer, "Transport",
1033                                   "RTP/AVP/UDP;client_port=%d-%d",
1034                                   i_port, i_port + 1 );
1035             }
1036             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1037             {
1038                 answer->i_status = 461;
1039                 answer->i_body = 0;
1040                 answer->p_body = NULL;
1041             }
1042
1043             /* Intentional fall-through on x-playNow option in RTSP request */
1044             if( !psz_playnow )
1045                 break;
1046         }
1047
1048         case HTTPD_MSG_PLAY:
1049         {
1050             char *psz_output, ip[NI_MAXNUMERICHOST];
1051             int i, i_port_audio = 0, i_port_video = 0;
1052
1053             /* for now only multicast so easy */
1054             if( !psz_playnow )
1055             {
1056                 answer->i_status = 200;
1057                 answer->i_body = 0;
1058                 answer->p_body = NULL;
1059             }
1060
1061             if( !psz_session )
1062                 psz_session = httpd_MsgGet( query, "Session" );
1063             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1064
1065             p_rtsp = RtspClientGet( p_media, psz_session );
1066             if( !p_rtsp )
1067             {
1068                 answer->i_status = 500;
1069                 answer->i_body = 0;
1070                 answer->p_body = NULL;
1071                 break;
1072             }
1073
1074             if( p_rtsp->b_playing )
1075             {
1076                 const char *psz_position = httpd_MsgGet( query, "Range" );
1077                 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1078                 if( psz_position )
1079                     psz_position = strstr( psz_position, "npt=" );
1080                 if( psz_position && !psz_scale )
1081                 {
1082                     double f_pos;
1083                     char *end;
1084
1085                     msg_Dbg( p_vod, "seeking request: %s", psz_position );
1086                     psz_position += 4;
1087                     /* FIXME: npt= is not necessarily formatted as a float */
1088                     f_pos = us_strtod( psz_position, &end );
1089                     if( end > psz_position )
1090                     {
1091                         f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1092                         CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1093                                      psz_session, f_pos, NULL );
1094                     }
1095                     break;
1096                 }
1097                 if( psz_scale )
1098                 {
1099                     double f_scale = 0.0;
1100                     char *end;
1101
1102                     f_scale = us_strtod( psz_scale, &end );
1103                     if( end > psz_scale )
1104                     {
1105                         f_scale = (f_scale * 30.0);
1106                         if( psz_scale[0] == '-' ) /* rewind */
1107                         {
1108                             msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1109                             CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1110                                          psz_session, f_scale, NULL );
1111                         }
1112                         else if(psz_scale[0] != '1' ) /* fast-forward */
1113                         {
1114                             msg_Dbg( p_vod, "fastforward request: %s",
1115                                      psz_scale );
1116                             CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1117                                          psz_session, f_scale, NULL );
1118                         }
1119
1120                         if( p_rtsp->b_paused == true )
1121                         {
1122                             p_rtsp->b_paused = false;
1123                             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1124                                          psz_session, 0, NULL );
1125                         }
1126                     }
1127                     break;
1128                 }
1129             }
1130
1131             if( p_rtsp->b_playing && p_rtsp->b_paused )
1132             {
1133                 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1134                              psz_session, 0, NULL );
1135                 p_rtsp->b_paused = false;
1136                 break;
1137             }
1138             else if( p_rtsp->b_playing ) break;
1139
1140             if( httpd_ClientIP( cl, ip ) == NULL ) break;
1141
1142             p_rtsp->b_playing = true;
1143
1144             /* FIXME for != 1 video and 1 audio */
1145             for( i = 0; i < p_rtsp->i_es; i++ )
1146             {
1147                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1148                     i_port_audio = p_rtsp->es[i]->i_port;
1149                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1150                     i_port_video = p_rtsp->es[i]->i_port;
1151             }
1152
1153             if( p_media->psz_mux )
1154             {
1155                 if( p_media->b_raw )
1156                 {
1157                     if( asprintf( &psz_output,
1158                               "std{access=udp,dst=%s:%i,mux=%s}",
1159                               ip, i_port, p_media->psz_mux ) < 0 )
1160                         return VLC_ENOMEM;
1161                 }
1162                 else
1163                 {
1164                     if( asprintf( &psz_output,
1165                               "rtp{dst=%s,port=%i,mux=%s}",
1166                               ip, i_port_video, p_media->psz_mux ) < 0 )
1167                         return VLC_ENOMEM;
1168                 }
1169             }
1170             else
1171             {
1172                 if( asprintf( &psz_output,
1173                               "rtp{dst=%s,port-video=%i,port-audio=%i}",
1174                               ip, i_port_video, i_port_audio ) < 0 )
1175                     return VLC_ENOMEM;
1176             }
1177
1178             CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1179                          0, psz_output );
1180             free( psz_output );
1181             break;
1182         }
1183
1184         case HTTPD_MSG_DESCRIBE:
1185         {
1186             char *psz_sdp =
1187                 SDPGenerate( p_media, cl );
1188
1189             if( psz_sdp != NULL )
1190             {
1191                 answer->i_status = 200;
1192                 httpd_MsgAdd( answer, "Content-type",  "%s",
1193                               "application/sdp" );
1194
1195                 answer->p_body = (uint8_t *)psz_sdp;
1196                 answer->i_body = strlen( psz_sdp );
1197             }
1198             else
1199             {
1200                 answer->i_status = 500;
1201                 answer->p_body = NULL;
1202                 answer->i_body = 0;
1203             }
1204             break;
1205         }
1206
1207         case HTTPD_MSG_PAUSE:
1208             psz_session = httpd_MsgGet( query, "Session" );
1209             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1210
1211             p_rtsp = RtspClientGet( p_media, psz_session );
1212             if( !p_rtsp ) break;
1213
1214             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1215                          0, NULL );
1216             p_rtsp->b_paused = true;
1217
1218             answer->i_status = 200;
1219             answer->i_body = 0;
1220             answer->p_body = NULL;
1221             break;
1222
1223         case HTTPD_MSG_TEARDOWN:
1224             /* for now only multicast so easy again */
1225             answer->i_status = 200;
1226             answer->i_body = 0;
1227             answer->p_body = NULL;
1228
1229             psz_session = httpd_MsgGet( query, "Session" );
1230             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1231
1232             p_rtsp = RtspClientGet( p_media, psz_session );
1233             if( !p_rtsp ) break;
1234
1235             CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1236                          0, NULL );
1237             RtspClientDel( p_media, p_rtsp );
1238             break;
1239
1240         case HTTPD_MSG_GETPARAMETER:
1241             answer->i_status = 200;
1242             answer->i_body = 0;
1243             answer->p_body = NULL;
1244             break;
1245
1246         default:
1247             return VLC_EGENERIC;
1248     }
1249
1250     httpd_MsgAdd( answer, "Server", "VLC Server" );
1251     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1252     psz_cseq = httpd_MsgGet( query, "Cseq" );
1253     psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1254     httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1255     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1256
1257     if( psz_session )
1258     {
1259          if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1260              httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1261                p_media->p_vod->p_sys->i_session_timeout );
1262          else
1263               httpd_MsgAdd( answer, "Session", "%s", psz_session );
1264     }
1265
1266     return VLC_SUCCESS;
1267 }
1268
1269 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1270                            httpd_message_t *answer,
1271                            const httpd_message_t *query )
1272 {
1273     media_es_t *p_es = (media_es_t*)p_args;
1274     vod_media_t *p_media = p_es->p_media;
1275     vod_t *p_vod = p_media->p_vod;
1276     rtsp_client_t *p_rtsp = NULL;
1277     const char *psz_transport = NULL;
1278     const char *psz_playnow = NULL; /* support option: x-playNow */
1279     const char *psz_session = NULL;
1280     const char *psz_position = NULL;
1281     const char *psz_cseq = NULL;
1282     int i_cseq = 0;
1283     int i;
1284
1285     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1286
1287     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1288
1289     answer->i_proto   = HTTPD_PROTO_RTSP;
1290     answer->i_version = query->i_version;
1291     answer->i_type    = HTTPD_MSG_ANSWER;
1292     answer->i_body    = 0;
1293     answer->p_body      = NULL;
1294
1295     switch( query->i_type )
1296     {
1297         case HTTPD_MSG_SETUP:
1298             psz_playnow = httpd_MsgGet( query, "x-playNow" );
1299             psz_transport = httpd_MsgGet( query, "Transport" );
1300
1301             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1302
1303             if( strstr( psz_transport, "unicast" ) &&
1304                 strstr( psz_transport, "client_port=" ) )
1305             {
1306                 rtsp_client_t *p_rtsp = NULL;
1307                 rtsp_client_es_t *p_rtsp_es = NULL;
1308                 char ip[NI_MAXNUMERICHOST];
1309                 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1310                                    strlen("client_port=") );
1311
1312                 if( httpd_ClientIP( cl, ip ) == NULL )
1313                 {
1314                     answer->i_status = 500;
1315                     answer->i_body = 0;
1316                     answer->p_body = NULL;
1317                     break;
1318                 }
1319
1320                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1321                         ip, i_port );
1322
1323                 psz_session = httpd_MsgGet( query, "Session" );
1324                 if( !psz_session || !*psz_session )
1325                 {
1326                     char *psz_new;
1327                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1328                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1329                     {
1330                         answer->i_status = 503;
1331                         answer->i_body = 0;
1332                         answer->p_body = NULL;
1333                         break;
1334                     }
1335                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
1336                         return VLC_ENOMEM;
1337                     psz_session = psz_new;
1338
1339                     p_rtsp = RtspClientNew( p_media, psz_new );
1340                 }
1341                 else
1342                 {
1343                     p_rtsp = RtspClientGet( p_media, psz_session );
1344                     if( !p_rtsp )
1345                     {
1346                         answer->i_status = 454;
1347                         answer->i_body = 0;
1348                         answer->p_body = NULL;
1349                         break;
1350                     }
1351                 }
1352
1353                 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1354                 if( !p_rtsp_es )
1355                 {
1356                     answer->i_status = 500;
1357                     answer->i_body = 0;
1358                     answer->p_body = NULL;
1359                     break;
1360                 }
1361                 p_rtsp_es->i_port = i_port;
1362                 p_rtsp_es->psz_ip = strdup( ip );
1363                 p_rtsp_es->p_media_es = p_es;
1364                 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1365
1366                 answer->i_status = 200;
1367                 answer->i_body = 0;
1368                 answer->p_body = NULL;
1369
1370                 if( p_media->b_raw )
1371                 {
1372                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1373                     {
1374                         httpd_MsgAdd( answer, "Transport",
1375                                      "MP2T/H2221/UDP;client_port=%d-%d",
1376                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1377                     }
1378                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1379                     {
1380                         httpd_MsgAdd( answer, "Transport",
1381                                      "RAW/RAW/UDP;client_port=%d-%d",
1382                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1383                     }
1384                 }
1385                 else
1386                 {
1387                     httpd_MsgAdd( answer, "Transport",
1388                                   "RTP/AVP/UDP;client_port=%d-%d",
1389                                   p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1390                 }
1391             }
1392             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1393             {
1394                 answer->i_status = 461;
1395                 answer->i_body = 0;
1396                 answer->p_body = NULL;
1397             }
1398
1399             /* Intentional fall-through on x-playNow option in RTSP request */
1400             if( !psz_playnow )
1401                 break;
1402
1403         case HTTPD_MSG_PLAY:
1404             /* This is kind of a kludge. Should we only support Aggregate
1405              * Operations ? */
1406             psz_session = httpd_MsgGet( query, "Session" );
1407             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1408
1409             p_rtsp = RtspClientGet( p_media, psz_session );
1410
1411             psz_position = httpd_MsgGet( query, "Range" );
1412             if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1413             if( psz_position )
1414             {
1415                 double f_pos;
1416                 char *end;
1417
1418                 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1419
1420                 psz_position += 4;
1421                 /* FIXME: npt= is not necessarily formatted as a float */
1422                 f_pos = us_strtod( psz_position, &end );
1423                 if( end > psz_position )
1424                 {
1425                     f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1426                     CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1427                                  psz_session, f_pos, NULL );
1428                 }
1429             }
1430
1431             if( !psz_playnow )
1432             {
1433                 answer->i_status = 200;
1434                 answer->i_body = 0;
1435                 answer->p_body = NULL;
1436             }
1437             break;
1438
1439         case HTTPD_MSG_TEARDOWN:
1440             answer->i_status = 200;
1441             answer->i_body = 0;
1442             answer->p_body = NULL;
1443
1444             psz_session = httpd_MsgGet( query, "Session" );
1445             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1446
1447             p_rtsp = RtspClientGet( p_media, psz_session );
1448             if( !p_rtsp ) break;
1449
1450             for( i = 0; i < p_rtsp->i_es; i++ )
1451             {
1452                 if( p_rtsp->es[i]->p_media_es == p_es )
1453                 {
1454                     free( p_rtsp->es[i]->psz_ip );
1455                     TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1456                     break;
1457                 }
1458             }
1459
1460             if( !p_rtsp->i_es )
1461             {
1462                 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1463                              0, NULL );
1464                 RtspClientDel( p_media, p_rtsp );
1465             }
1466             break;
1467
1468         case HTTPD_MSG_PAUSE:
1469             /* This is kind of a kludge. Should we only support Aggregate
1470              * Operations ? */
1471             psz_session = httpd_MsgGet( query, "Session" );
1472             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1473
1474             p_rtsp = RtspClientGet( p_media, psz_session );
1475             if( !p_rtsp ) break;
1476
1477             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1478                          0, NULL );
1479             p_rtsp->b_paused = true;
1480
1481             answer->i_status = 200;
1482             answer->i_body = 0;
1483             answer->p_body = NULL;
1484             break;
1485
1486         default:
1487             return VLC_EGENERIC;
1488             break;
1489     }
1490
1491     httpd_MsgAdd( answer, "Server", "VLC Server" );
1492     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1493     psz_cseq = httpd_MsgGet( query, "Cseq" );
1494     if (psz_cseq)
1495         i_cseq = atoi( psz_cseq );
1496     else
1497         i_cseq = 0;
1498     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1499     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1500
1501     if( psz_session )
1502         httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1503
1504     return VLC_SUCCESS;
1505 }
1506
1507 /*****************************************************************************
1508  * SDPGenerate: TODO
1509  * FIXME: need to be moved to a common place ?
1510  *****************************************************************************/
1511 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1512 {
1513     int i, i_size;
1514     char *p, *psz_sdp, ip[NI_MAXNUMERICHOST], ipv;
1515     const char *psz_control;
1516
1517     if( httpd_ServerIP( cl, ip ) == NULL )
1518         return NULL;
1519
1520     p = strchr( ip, '%' );
1521     if( p != NULL )
1522         *p = '\0'; /* remove scope if present */
1523
1524     ipv = ( strchr( ip, ':' ) != NULL ) ? '6' : '4';
1525
1526     /* Calculate size */
1527     i_size = sizeof( "v=0\r\n" ) +
1528         sizeof( "o=- * * IN IP4 \r\n" ) + 10 + NI_MAXNUMERICHOST +
1529         sizeof( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
1530         sizeof( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
1531         sizeof( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
1532         sizeof( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
1533         sizeof( "c=IN IP4 0.0.0.0\r\n" ) + 20 + 10 +
1534         sizeof( "t=0 0\r\n" ) + /* FIXME */
1535         sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
1536         sizeof( "a=range:npt=0-1000000000.000\r\n" );
1537
1538     psz_control = (ipv == '6') ? p_media->psz_rtsp_control_v6
1539                                : p_media->psz_rtsp_control_v4;
1540     for( i = 0; i < p_media->i_es; i++ )
1541     {
1542         media_es_t *p_es = p_media->es[i];
1543
1544         i_size += sizeof( "m=**d*o * RTP/AVP *\r\n" ) + 19;
1545         if( p_es->psz_rtpmap )
1546         {
1547             i_size += sizeof( "a=rtpmap:* *\r\n" ) +
1548                 strlen( p_es->psz_rtpmap ) + 9;
1549         }
1550         if( p_es->psz_fmtp )
1551         {
1552             i_size += sizeof( "a=fmtp:* *\r\n" ) +
1553                 strlen( p_es->psz_fmtp ) + 9;
1554         }
1555     }
1556     i_size += (strlen( psz_control ) + strlen( ip ) + 9) * p_media->i_es;
1557
1558     p = psz_sdp = malloc( i_size );
1559     p += sprintf( p, "v=0\r\n" );
1560     p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
1561                   p_media->i_sdp_id, p_media->i_sdp_version, ipv, ip );
1562     if( *p_media->psz_session_name )
1563         p += sprintf( p, "s=%s\r\n", p_media->psz_session_name );
1564     if( *p_media->psz_session_description )
1565         p += sprintf( p, "i=%s\r\n", p_media->psz_session_description );
1566     if( *p_media->psz_session_url )
1567         p += sprintf( p, "u=%s\r\n", p_media->psz_session_url );
1568     if( *p_media->psz_session_email )
1569         p += sprintf( p, "e=%s\r\n", p_media->psz_session_email );
1570
1571     p += sprintf( p, "c=IN IP%c %s\r\n", ipv, ipv == '6' ? "::" : "0.0.0.0" );
1572     p += sprintf( p, "t=0 0\r\n" ); /* FIXME */
1573     p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
1574
1575     if( p_media->i_length > 0 )
1576     {
1577         lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1578         p += sprintf( p, "a=range:npt=0-%lld.%03u\r\n", d.quot,
1579                       (unsigned)d.rem );
1580     }
1581
1582     for( i = 0; i < p_media->i_es; i++ )
1583     {
1584         media_es_t *p_es = p_media->es[i];
1585
1586         if( p_es->fmt.i_cat == AUDIO_ES )
1587         {
1588             p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
1589                           p_es->i_port, p_es->i_payload_type );
1590         }
1591         else if( p_es->fmt.i_cat == VIDEO_ES )
1592         {
1593             p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
1594                           p_es->i_port, p_es->i_payload_type );
1595         }
1596         else
1597         {
1598             continue;
1599         }
1600
1601         if( p_es->psz_rtpmap )
1602         {
1603             p += sprintf( p, "a=rtpmap:%d %s\r\n", p_es->i_payload_type,
1604                           p_es->psz_rtpmap );
1605         }
1606         if( p_es->psz_fmtp )
1607         {
1608             p += sprintf( p, "a=fmtp:%d %s\r\n", p_es->i_payload_type,
1609                           p_es->psz_fmtp );
1610         }
1611
1612         p += sprintf( p, psz_control, ip, i );
1613     }
1614
1615     return psz_sdp;
1616 }