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_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_sout.h>
  37 #include <vlc_block.h>
  38
  39 #include <vlc_httpd.h>
  40 #include <vlc_vod.h>
  41 #include <vlc_url.h>
  42 #include <vlc_network.h>
  43 #include <vlc_charset.h>
  44 #include <vlc_strings.h>
  45
  46 #ifndef WIN32
  47 # include <locale.h>
  48 #endif
  49
  50 #ifdef HAVE_XLOCALE_H
  51 # include <xlocale.h>
  52 #endif
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 static int  Open ( vlc_object_t * );
  58 static void Close( vlc_object_t * );
  59
  60 #define HOST_TEXT N_( "RTSP host address" )
  61 #define HOST_LONGTEXT N_( \
  62     "This defines the address, port and path the RTSP VOD server will listen " \
  63     "on.\nSyntax is address:port/path. The default is to listen on all "\
  64     "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
  65     "only on the local interface, use \"localhost\" as address." )
  66
  67 #define THROTTLE_TEXT N_( "Maximum number of connections" )
  68 #define THROTTLE_LONGTEXT N_( "This limits the maximum number of clients " \
  69     "that can connect to the RTSP VOD. 0 means no limit."  )
  70
  71 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
  72
  73 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
  74     "session string" )
  75 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
  76     "to the RTSP session ID string. Setting it to a negative number removes " \
  77     "the timeout option entirely. This is needed by some IPTV STBs (such as " \
  78     "those made by HansunTech) which get confused by it. The default is 5." )
  79
  80 vlc_module_begin ()
  81     set_shortname( N_("RTSP VoD" ) )
  82     set_description( N_("RTSP VoD server") )
  83     set_category( CAT_SOUT )
  84     set_subcategory( SUBCAT_SOUT_VOD )
  85     set_capability( "vod server", 1 )
  86     set_callbacks( Open, Close )
  87     add_shortcut( "rtsp" )
  88     add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, true )
  89     add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT,
  90                 RAWMUX_TEXT, true )
  91     add_integer( "rtsp-throttle-users", 0, NULL, THROTTLE_TEXT,
  92                  THROTTLE_LONGTEXT, true )
  93     add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
  94                  SESSION_TIMEOUT_LONGTEXT, true )
  95 vlc_module_end ()
  96
  97 /*****************************************************************************
  98  * Exported prototypes
  99  *****************************************************************************/
 100
 101 typedef struct media_es_t media_es_t;
 102
 103 typedef struct
 104 {
 105     media_es_t *p_media_es;
 106     int i_port;
 107
 108 } rtsp_client_es_t;
 109
 110 typedef struct
 111 {
 112     char *psz_session;
 113
 114     bool b_playing; /* is it in "play" state */
 115     bool b_paused; /* is it in "pause" state */
 116
 117     int i_es;
 118     rtsp_client_es_t **es;
 119
 120 } rtsp_client_t;
 121
 122 struct media_es_t
 123 {
 124     /* VoD server */
 125     vod_t *p_vod;
 126
 127     /* RTSP server */
 128     httpd_url_t *p_rtsp_url;
 129
 130     vod_media_t *p_media;
 131
 132     es_format_t fmt;
 133     uint8_t     i_payload_type;
 134     const char  *psz_ptname;
 135     unsigned    i_clock_rate;
 136     unsigned    i_channels;
 137     char        *psz_fmtp;
 138
 139 };
 140
 141 struct vod_media_t
 142 {
 143     int id;
 144
 145     /* VoD server */
 146     vod_t *p_vod;
 147
 148     /* RTSP server */
 149     httpd_url_t  *p_rtsp_url;
 150     char         *psz_rtsp_control_v4;
 151     char         *psz_rtsp_control_v6;
 152     char         *psz_rtsp_path;
 153
 154     int  i_payload_type;
 155
 156     vlc_mutex_t lock;
 157
 158     /* ES list */
 159     int        i_es;
 160     media_es_t **es;
 161     const char *psz_mux;
 162     bool  b_raw;
 163
 164     /* RTSP client */
 165     int           i_rtsp;
 166     rtsp_client_t **rtsp;
 167
 168     /* Infos */
 169     mtime_t i_length;
 170 };
 171
 172 struct vod_sys_t
 173 {
 174     /* RTSP server */
 175     httpd_host_t *p_rtsp_host;
 176     char *psz_path;
 177     int i_port;
 178     int i_throttle_users;
 179     int i_connections;
 180
 181     char *psz_raw_mux;
 182
 183     int i_session_timeout;
 184
 185     /* List of media */
 186     vlc_mutex_t lock_media;
 187     int i_media_id;
 188     int i_media;
 189     vod_media_t **media;
 190
 191     /* */
 192     block_fifo_t *p_fifo_cmd;
 193 };
 194
 195 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
 196 typedef enum
 197 {
 198     RTSP_CMD_TYPE_NONE,  /* Exit requested */
 199
 200     RTSP_CMD_TYPE_PLAY,
 201     RTSP_CMD_TYPE_PAUSE,
 202     RTSP_CMD_TYPE_STOP,
 203     RTSP_CMD_TYPE_SEEK,
 204     RTSP_CMD_TYPE_REWIND,
 205     RTSP_CMD_TYPE_FORWARD,
 206
 207     RTSP_CMD_TYPE_ADD,
 208     RTSP_CMD_TYPE_DEL,
 209 } rtsp_cmd_type_t;
 210
 211 /* */
 212 typedef struct
 213 {
 214     int i_type;
 215     int i_media_id;
 216     vod_media_t *p_media;
 217     char *psz_session;
 218     char *psz_arg;
 219     double f_arg;
 220 } rtsp_cmd_t;
 221
 222 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
 223 static void         MediaDel( vod_t *, vod_media_t * );
 224 static void         MediaAskDel ( vod_t *, vod_media_t * );
 225 static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
 226 static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );
 227
 228 static void* CommandThread( vlc_object_t *p_this );
 229 static void  CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *, const char *psz_session,
 230                           double f_arg, const char *psz_arg );
 231
 232 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
 233 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
 234 static void           RtspClientDel( vod_media_t *, rtsp_client_t * );
 235
 236 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
 237                          httpd_message_t *, const httpd_message_t * );
 238 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
 239                            httpd_message_t *, const httpd_message_t * );
 240
 241 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
 242
 243 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
 244 {
 245     static const char hex[16] = "0123456789abcdef";
 246     int i;
 247
 248     for( i = 0; i < i_data; i++ )
 249     {
 250         s[2*i+0] = hex[(p_data[i]>>4)&0xf];
 251         s[2*i+1] = hex[(p_data[i]   )&0xf];
 252     }
 253     s[2*i_data] = '\0';
 254 }
 255
 256 /*****************************************************************************
 257  * Open: Starts the RTSP server module
 258  *****************************************************************************/
 259 static int Open( vlc_object_t *p_this )
 260 {
 261     vod_t *p_vod = (vod_t *)p_this;
 262     vod_sys_t *p_sys = NULL;
 263     char *psz_url = NULL;
 264     vlc_url_t url;
 265
 266     psz_url = var_InheritString( p_vod, "rtsp-host" );
 267     vlc_UrlParse( &url, psz_url, 0 );
 268     free( psz_url );
 269
 270     if( url.i_port <= 0 ) url.i_port = 554;
 271
 272     p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
 273     if( !p_sys ) goto error;
 274     p_sys->p_rtsp_host = 0;
 275
 276     p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
 277
 278     p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
 279     msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
 280     p_sys->i_connections = 0;
 281
 282     p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
 283
 284     p_sys->p_rtsp_host =
 285         httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
 286     if( !p_sys->p_rtsp_host )
 287     {
 288         msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
 289                  url.psz_host, url.i_port );
 290         goto error;
 291     }
 292
 293     p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
 294     p_sys->i_port = url.i_port;
 295
 296     vlc_UrlClean( &url );
 297
 298     vlc_mutex_init( &p_sys->lock_media );
 299
 300     TAB_INIT( p_sys->i_media, p_sys->media );
 301     p_sys->i_media_id = 0;
 302
 303     p_vod->pf_media_new = MediaNew;
 304     p_vod->pf_media_del = MediaAskDel;
 305     p_vod->pf_media_add_es = MediaAddES;
 306     p_vod->pf_media_del_es = MediaDelES;
 307
 308     p_sys->p_fifo_cmd = block_FifoNew();
 309     if( vlc_thread_create( p_vod, "rtsp vod thread", CommandThread,
 310                            VLC_THREAD_PRIORITY_LOW ) )
 311     {
 312         msg_Err( p_vod, "cannot spawn rtsp vod thread" );
 313         block_FifoRelease( p_sys->p_fifo_cmd );
 314         free( p_sys->psz_path );
 315         goto error;
 316     }
 317
 318     return VLC_SUCCESS;
 319
 320 error:
 321     if( p_sys )
 322     {
 323         if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
 324         free( p_sys->psz_raw_mux );
 325         free( p_sys );
 326     }
 327     vlc_UrlClean( &url );
 328
 329     return VLC_EGENERIC;
 330 }
 331
 332 /*****************************************************************************
 333  * Close:
 334  *****************************************************************************/
 335 static void Close( vlc_object_t * p_this )
 336 {
 337     vod_t *p_vod = (vod_t *)p_this;
 338     vod_sys_t *p_sys = p_vod->p_sys;
 339     block_t *p_block_cmd;
 340     rtsp_cmd_t cmd;
 341
 342     /* Stop command thread */
 343     vlc_object_kill( p_vod );
 344     CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0.0, NULL );
 345     vlc_thread_join( p_vod );
 346
 347     while( block_FifoCount( p_sys->p_fifo_cmd ) > 0 )
 348     {
 349          p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
 350          memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
 351          block_Release( p_block_cmd );
 352          if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
 353              MediaDel(p_vod, cmd.p_media);
 354          free( cmd.psz_session );
 355          free( cmd.psz_arg );
 356     }
 357     block_FifoRelease( p_sys->p_fifo_cmd );
 358
 359     httpd_HostDelete( p_sys->p_rtsp_host );
 360     var_Destroy( p_this, "rtsp-session-timeout" );
 361     var_Destroy( p_this, "rtsp-throttle-users" );
 362     var_Destroy( p_this, "rtsp-raw-mux" );
 363
 364     /* Check VLM is not buggy */
 365     if( p_sys->i_media > 0 )
 366         msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
 367     TAB_CLEAN( p_sys->i_media, p_sys->media );
 368
 369     vlc_mutex_destroy( &p_sys->lock_media );
 370
 371     free( p_sys->psz_path );
 372     free( p_sys->psz_raw_mux );
 373     free( p_sys );
 374 }
 375
 376 /*****************************************************************************
 377  * Media handling
 378  *****************************************************************************/
 379 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
 380                               input_item_t *p_item )
 381 {
 382     int i;
 383     vod_sys_t *p_sys = p_vod->p_sys;
 384
 385     vod_media_t *p_media = calloc( 1, sizeof(vod_media_t) );
 386     if( !p_media )
 387         return NULL;
 388
 389     p_media->id = p_sys->i_media_id++;
 390     TAB_INIT( p_media->i_es, p_media->es );
 391     p_media->psz_mux = NULL;
 392     TAB_INIT( p_media->i_rtsp, p_media->rtsp );
 393     p_media->b_raw = false;
 394
 395     if( asprintf( &p_media->psz_rtsp_path, "%s%s",
 396                   p_sys->psz_path, psz_name ) <0 )
 397         return NULL;
 398     p_media->p_rtsp_url =
 399         httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
 400                             NULL, NULL );
 401
 402     if( !p_media->p_rtsp_url )
 403     {
 404         msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
 405         free( p_media->psz_rtsp_path );
 406         free( p_media );
 407         return NULL;
 408     }
 409
 410     msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
 411
 412     if( asprintf( &p_media->psz_rtsp_control_v4,
 413                "rtsp://%%s:%d%s/trackID=%%d",
 414                p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
 415     {
 416         httpd_UrlDelete( p_media->p_rtsp_url );
 417         free( p_media->psz_rtsp_path );
 418         free( p_media );
 419         return NULL;
 420     }
 421     if( asprintf( &p_media->psz_rtsp_control_v6,
 422                "rtsp://[%%s]:%d%s/trackID=%%d",
 423               p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
 424     {
 425         httpd_UrlDelete( p_media->p_rtsp_url );
 426         free( p_media->psz_rtsp_path );
 427         free( p_media );
 428         return NULL;
 429     }
 430
 431     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
 432                     RtspCallback, (void*)p_media );
 433     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
 434                     RtspCallback, (void*)p_media );
 435     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
 436                     RtspCallback, (void*)p_media );
 437     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
 438                     RtspCallback, (void*)p_media );
 439     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
 440                     RtspCallback, (void*)p_media );
 441     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 442                     RtspCallback, (void*)p_media );
 443
 444     p_media->p_vod = p_vod;
 445
 446     vlc_mutex_init( &p_media->lock );
 447
 448     p_media->i_payload_type = 96;
 449
 450     p_media->i_length = input_item_GetDuration( p_item );
 451
 452     vlc_mutex_lock( &p_item->lock );
 453     msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
 454     for( i = 0; i < p_item->i_es; i++ )
 455     {
 456         MediaAddES( p_vod, p_media, p_item->es[i] );
 457     }
 458     vlc_mutex_unlock( &p_item->lock );
 459
 460     CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0.0, NULL );
 461     return p_media;
 462 }
 463
 464 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
 465 {
 466     CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0.0, NULL );
 467 }
 468
 469 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
 470 {
 471     vod_sys_t *p_sys = p_vod->p_sys;
 472
 473     msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
 474
 475     vlc_mutex_lock( &p_sys->lock_media );
 476     TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
 477     vlc_mutex_unlock( &p_sys->lock_media );
 478
 479     httpd_UrlDelete( p_media->p_rtsp_url );
 480
 481     while( p_media->i_rtsp > 0 )
 482         RtspClientDel( p_media, p_media->rtsp[0] );
 483     TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
 484
 485     free( p_media->psz_rtsp_path );
 486     free( p_media->psz_rtsp_control_v6 );
 487     free( p_media->psz_rtsp_control_v4 );
 488
 489     while( p_media->i_es )
 490         MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
 491     TAB_CLEAN( p_media->i_es, p_media->es );
 492
 493     vlc_mutex_destroy( &p_media->lock );
 494
 495     free( p_media );
 496 }
 497
 498 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
 499 {
 500     char *psz_urlc;
 501     media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
 502     if( !p_es )
 503         return VLC_ENOMEM;
 504
 505     p_media->psz_mux = NULL;
 506
 507     /* TODO: update SDP, etc... */
 508     if( asprintf( &psz_urlc, "%s/trackID=%d",
 509               p_media->psz_rtsp_path, p_media->i_es ) < 0 )
 510     {
 511         free( p_es );
 512         return VLC_ENOMEM;
 513     }
 514     msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
 515
 516     p_es->i_clock_rate = 90000;
 517     p_es->i_channels = 1;
 518
 519     switch( p_fmt->i_codec )
 520     {
 521         case VLC_CODEC_S16B:
 522             if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
 523             {
 524                 p_es->i_payload_type = 11;
 525             }
 526             else if( p_fmt->audio.i_channels == 2 &&
 527                      p_fmt->audio.i_rate == 44100 )
 528             {
 529                 p_es->i_payload_type = 10;
 530             }
 531             else
 532             {
 533                 p_es->i_payload_type = p_media->i_payload_type++;
 534             }
 535             p_es->psz_ptname = "L16";
 536             p_es->i_clock_rate = p_fmt->audio.i_rate;
 537             p_es->i_channels = p_fmt->audio.i_channels;
 538             break;
 539         case VLC_CODEC_U8:
 540             p_es->i_payload_type = p_media->i_payload_type++;
 541             p_es->psz_ptname = "L8";
 542             p_es->i_clock_rate = p_fmt->audio.i_rate;
 543             p_es->i_channels = p_fmt->audio.i_channels;
 544             break;
 545         case VLC_CODEC_MPGA:
 546             p_es->i_payload_type = 14;
 547             p_es->psz_ptname = "MPA";
 548             break;
 549         case VLC_CODEC_MPGV:
 550             p_es->i_payload_type = 32;
 551             p_es->psz_ptname = "MPV";
 552             break;
 553         case VLC_CODEC_A52:
 554             p_es->i_payload_type = p_media->i_payload_type++;
 555             p_es->psz_ptname = "ac3";
 556             p_es->i_clock_rate = p_fmt->audio.i_rate;
 557             break;
 558         case VLC_CODEC_H263:
 559             p_es->i_payload_type = p_media->i_payload_type++;
 560             p_es->psz_ptname = "H263-1998";
 561             break;
 562         case VLC_CODEC_H264:
 563             p_es->i_payload_type = p_media->i_payload_type++;
 564             p_es->psz_ptname = "H264";
 565             p_es->psz_fmtp = NULL;
 566             /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
 567             if( p_fmt->i_extra > 0 )
 568             {
 569                 uint8_t *p_buffer = p_fmt->p_extra;
 570                 int     i_buffer = p_fmt->i_extra;
 571                 char    *p_64_sps = NULL;
 572                 char    *p_64_pps = NULL;
 573                 char    hexa[6+1];
 574
 575                 while( i_buffer > 4 &&
 576                        p_buffer[0] == 0 && p_buffer[1] == 0 &&
 577                        p_buffer[2] == 0 && p_buffer[3] == 1 )
 578                 {
 579                     const int i_nal_type = p_buffer[4]&0x1f;
 580                     int i_offset;
 581                     int i_size      = 0;
 582
 583                     i_size = i_buffer;
 584                     for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
 585                     {
 586                         if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
 587                         {
 588                             /* we found another startcode */
 589                             i_size = i_offset;
 590                             break;
 591                         }
 592                     }
 593                     if( i_nal_type == 7 )
 594                     {
 595                         free( p_64_sps );
 596                         p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 597                         sprintf_hexa( hexa, &p_buffer[5], 3 );
 598                     }
 599                     else if( i_nal_type == 8 )
 600                     {
 601                         free( p_64_pps );
 602                         p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 603                     }
 604                     i_buffer -= i_size;
 605                     p_buffer += i_size;
 606                 }
 607                 /* */
 608                 if( p_64_sps && p_64_pps )
 609                 {
 610                     if( asprintf( &p_es->psz_fmtp,
 611                                   "packetization-mode=1;profile-level-id=%s;"
 612                                   "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
 613                                   p_64_pps ) < 0 )
 614                     {
 615                         free( p_64_sps );
 616                         free( p_64_pps );
 617                         free( psz_urlc );
 618                         free( p_es );
 619                         return VLC_ENOMEM;
 620                     }
 621                 }
 622                 free( p_64_sps );
 623                 free( p_64_pps );
 624             }
 625             if( !p_es->psz_fmtp )
 626                 p_es->psz_fmtp = strdup( "packetization-mode=1" );
 627             break;
 628         case VLC_CODEC_MP4V:
 629             p_es->i_payload_type = p_media->i_payload_type++;
 630             p_es->psz_ptname = "MP4V-ES";
 631             if( p_fmt->i_extra > 0 )
 632             {
 633                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 634                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 635                 if( asprintf( &p_es->psz_fmtp,
 636                               "profile-level-id=3; config=%s;", p_hexa ) == -1 )
 637                     p_es->psz_fmtp = NULL;
 638                 free( p_hexa );
 639             }
 640             break;
 641         case VLC_CODEC_MP4A:
 642             p_es->i_payload_type = p_media->i_payload_type++;
 643             p_es->psz_ptname = "mpeg4-generic";
 644             p_es->i_clock_rate = p_fmt->audio.i_rate;
 645             if( p_fmt->i_extra > 0 )
 646             {
 647                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 648                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 649                 if( asprintf( &p_es->psz_fmtp,
 650                               "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
 651                               "config=%s; SizeLength=13;IndexLength=3; "
 652                               "IndexDeltaLength=3; Profile=1;", p_hexa ) == -1 )
 653                     p_es->psz_fmtp = NULL;
 654                 free( p_hexa );
 655             }
 656             break;
 657         case VLC_FOURCC( 'm', 'p', '2', 't' ):
 658             p_media->psz_mux = "ts";
 659             p_es->i_payload_type = 33;
 660             p_es->psz_ptname = "MP2T";
 661             break;
 662         case VLC_FOURCC( 'm', 'p', '2', 'p' ):
 663             p_media->psz_mux = "ps";
 664             p_es->i_payload_type = p_media->i_payload_type++;
 665             p_es->psz_ptname = "MP2P";
 666             break;
 667         case VLC_CODEC_AMR_NB:
 668             p_es->i_payload_type = p_media->i_payload_type++;
 669             p_es->psz_ptname = "AMR";
 670             p_es->i_clock_rate = 8000;
 671             if(p_fmt->audio.i_channels == 2 )
 672                 p_es->i_channels = 2;
 673             p_es->psz_fmtp = strdup( "octet-align=1" );
 674             break;
 675         case VLC_CODEC_AMR_WB:
 676             p_es->i_payload_type = p_media->i_payload_type++;
 677             p_es->psz_ptname = "AMR-WB";
 678             p_es->i_clock_rate = 16000;
 679             if(p_fmt->audio.i_channels == 2 )
 680                 p_es->i_channels = 2;
 681             p_es->psz_fmtp = strdup( "octet-align=1" );
 682             break;
 683
 684         default:
 685             msg_Err( p_vod, "cannot add this stream (unsupported "
 686                     "codec: %4.4s)", (char*)&p_fmt->i_codec );
 687             free( psz_urlc );
 688             free( p_es );
 689             return VLC_EGENERIC;
 690     }
 691
 692     p_es->p_rtsp_url =
 693         httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
 694                             NULL );
 695
 696     if( !p_es->p_rtsp_url )
 697     {
 698         msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
 699         free( psz_urlc );
 700         free( p_es );
 701         return VLC_EGENERIC;
 702     }
 703     free( psz_urlc );
 704
 705     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
 706                     RtspCallbackES, (void*)p_es );
 707     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 708                     RtspCallbackES, (void*)p_es );
 709     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
 710                     RtspCallbackES, (void*)p_es );
 711     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
 712                     RtspCallbackES, (void*)p_es );
 713
 714     es_format_Copy( &p_es->fmt, p_fmt );
 715     p_es->p_vod = p_vod;
 716     p_es->p_media = p_media;
 717
 718     vlc_mutex_lock( &p_media->lock );
 719     TAB_APPEND( p_media->i_es, p_media->es, p_es );
 720     vlc_mutex_unlock( &p_media->lock );
 721
 722     return VLC_SUCCESS;
 723 }
 724
 725 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
 726 {
 727     media_es_t *p_es = NULL;
 728     int i;
 729
 730     /* Find the ES */
 731     for( i = 0; i < p_media->i_es; i++ )
 732     {
 733         if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
 734             p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
 735             p_media->es[i]->fmt.i_id == p_fmt->i_id )
 736         {
 737             p_es = p_media->es[i];
 738         }
 739     }
 740     if( !p_es ) return;
 741
 742     msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );
 743
 744     vlc_mutex_lock( &p_media->lock );
 745     TAB_REMOVE( p_media->i_es, p_media->es, p_es );
 746     vlc_mutex_unlock( &p_media->lock );
 747
 748     free( p_es->psz_fmtp );
 749
 750     if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
 751     es_format_Clean( &p_es->fmt );
 752     free( p_es );
 753 }
 754
 755 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session,
 756                          double f_arg, const char *psz_arg )
 757 {
 758     rtsp_cmd_t cmd;
 759     block_t *p_cmd;
 760
 761     memset( &cmd, 0, sizeof(cmd) );
 762     cmd.i_type = i_type;
 763     cmd.p_media = p_media;
 764     if( p_media )
 765         cmd.i_media_id = p_media->id;
 766     if( psz_session )
 767         cmd.psz_session = strdup(psz_session);
 768     cmd.f_arg = f_arg;
 769     if( psz_arg )
 770         cmd.psz_arg = strdup(psz_arg);
 771
 772     p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
 773     memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
 774
 775     block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
 776 }
 777
 778 static void* CommandThread( vlc_object_t *p_this )
 779 {
 780     vod_t *p_vod = (vod_t*)p_this;
 781     vod_sys_t *p_sys = p_vod->p_sys;
 782     int canc = vlc_savecancel ();
 783
 784     while( vlc_object_alive (p_vod) )
 785     {
 786         block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
 787         rtsp_cmd_t cmd;
 788         vod_media_t *p_media = NULL;
 789         int i;
 790
 791         if( !p_block_cmd )
 792             break;
 793
 794         memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
 795         block_Release( p_block_cmd );
 796
 797         if( cmd.i_type == RTSP_CMD_TYPE_NONE )
 798             break;
 799
 800         if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
 801         {
 802             vlc_mutex_lock( &p_sys->lock_media );
 803             TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
 804             vlc_mutex_unlock( &p_sys->lock_media );
 805             goto next;
 806         }
 807
 808         if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
 809         {
 810             MediaDel(p_vod, cmd.p_media);
 811             goto next;
 812         }
 813
 814         /* */
 815         vlc_mutex_lock( &p_sys->lock_media );
 816         for( i = 0; i < p_sys->i_media; i++ )
 817         {
 818             if( p_sys->media[i]->id == cmd.i_media_id )
 819                 break;
 820         }
 821         if( i >= p_sys->i_media )
 822         {
 823             vlc_mutex_unlock( &p_sys->lock_media );
 824             goto next;
 825         }
 826         p_media = p_sys->media[i];
 827
 828         switch( cmd.i_type )
 829         {
 830         case RTSP_CMD_TYPE_PLAY:
 831             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 832                               VOD_MEDIA_PLAY, cmd.psz_arg );
 833             break;
 834         case RTSP_CMD_TYPE_PAUSE:
 835             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 836                               VOD_MEDIA_PAUSE );
 837             break;
 838
 839         case RTSP_CMD_TYPE_STOP:
 840             vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
 841             break;
 842
 843         case RTSP_CMD_TYPE_SEEK:
 844             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 845                               VOD_MEDIA_SEEK, cmd.f_arg );
 846             break;
 847
 848         case RTSP_CMD_TYPE_REWIND:
 849             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 850                               VOD_MEDIA_REWIND, cmd.f_arg );
 851             break;
 852
 853         case RTSP_CMD_TYPE_FORWARD:
 854             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 855                               VOD_MEDIA_FORWARD, cmd.f_arg );
 856             break;
 857
 858         default:
 859             break;
 860         }
 861         vlc_mutex_unlock( &p_sys->lock_media );
 862
 863     next:
 864         free( cmd.psz_session );
 865         free( cmd.psz_arg );
 866     }
 867
 868     vlc_restorecancel (canc);
 869     return NULL;
 870 }
 871
 872 /****************************************************************************
 873  * RTSP server implementation
 874  ****************************************************************************/
 875 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
 876 {
 877     rtsp_client_t *p_rtsp = calloc( 1, sizeof(rtsp_client_t) );
 878
 879     if( !p_rtsp )
 880         return NULL;
 881     p_rtsp->es = 0;
 882
 883     p_rtsp->psz_session = psz_session;
 884     TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 885
 886     p_media->p_vod->p_sys->i_connections++;
 887     msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
 888              psz_session, p_media->p_vod->p_sys->i_throttle_users );
 889
 890     return p_rtsp;
 891 }
 892
 893 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
 894 {
 895     int i;
 896
 897     for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
 898     {
 899         if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
 900             return p_media->rtsp[i];
 901     }
 902
 903     return NULL;
 904 }
 905
 906 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
 907 {
 908     p_media->p_vod->p_sys->i_connections--;
 909     msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
 910              p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
 911
 912     while( p_rtsp->i_es )
 913     {
 914         p_rtsp->i_es--;
 915         free( p_rtsp->es[p_rtsp->i_es] );
 916     }
 917     free( p_rtsp->es );
 918
 919     TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 920
 921     free( p_rtsp->psz_session );
 922     free( p_rtsp );
 923 }
 924
 925
 926 static float ParseNPT (const char *str)
 927 {
 928      locale_t loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
 929      locale_t oldloc = uselocale (loc);
 930      unsigned hour, min;
 931      float sec;
 932
 933      if (sscanf (str, "%u:%u:%f", &hour, &min, &sec) == 3)
 934          sec += ((hour * 60) + min) * 60;
 935      else
 936      if (sscanf (str, "%f", &sec) != 1)
 937          sec = 0.;
 938
 939      if (loc != (locale_t)0)
 940      {
 941          uselocale (oldloc);
 942          freelocale (loc);
 943      }
 944      return sec;
 945 }
 946
 947
 948 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
 949                          httpd_message_t *answer, const httpd_message_t *query )
 950 {
 951     vod_media_t *p_media = (vod_media_t*)p_args;
 952     vod_t *p_vod = p_media->p_vod;
 953     const char *psz_transport = NULL;
 954     const char *psz_playnow = NULL; /* support option: x-playNow */
 955     const char *psz_session = NULL;
 956     const char *psz_cseq = NULL;
 957     rtsp_client_t *p_rtsp;
 958     int i_port = 0;
 959     int i_cseq = 0;
 960
 961     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
 962
 963     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
 964
 965     answer->i_proto   = HTTPD_PROTO_RTSP;
 966     answer->i_version = query->i_version;
 967     answer->i_type    = HTTPD_MSG_ANSWER;
 968     answer->i_body    = 0;
 969     answer->p_body    = NULL;
 970
 971     switch( query->i_type )
 972     {
 973         case HTTPD_MSG_SETUP:
 974         {
 975             psz_playnow = httpd_MsgGet( query, "x-playNow" );
 976             psz_transport = httpd_MsgGet( query, "Transport" );
 977             if( psz_transport == NULL )
 978             {
 979                 answer->i_status = 400;
 980                 break;
 981             }
 982             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
 983
 984             if( strstr( psz_transport, "unicast" ) &&
 985                 strstr( psz_transport, "client_port=" ) )
 986             {
 987                 rtsp_client_t *p_rtsp = NULL;
 988                 char ip[NI_MAXNUMERICHOST];
 989                 i_port = atoi( strstr( psz_transport, "client_port=" ) +
 990                                 strlen("client_port=") );
 991
 992                 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
 993                     strstr( psz_transport, "RAW/RAW/UDP" ) )
 994                 {
 995                     p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
 996                     p_media->b_raw = true;
 997                 }
 998
 999                 if( httpd_ClientIP( cl, ip ) == NULL )
1000                 {
1001                     answer->i_status = 500;
1002                     answer->i_body = 0;
1003                     answer->p_body = NULL;
1004                     break;
1005                 }
1006
1007                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1008                          ip, i_port );
1009
1010                 psz_session = httpd_MsgGet( query, "Session" );
1011                 if( !psz_session || !*psz_session )
1012                 {
1013                     char *psz_new;
1014                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1015                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1016                     {
1017                         answer->i_status = 503;
1018                         answer->i_body = 0;
1019                         answer->p_body = NULL;
1020                         break;
1021                     }
1022                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
1023                         return VLC_ENOMEM;
1024                     psz_session = psz_new;
1025
1026                     p_rtsp = RtspClientNew( p_media, psz_new );
1027                     if( !p_rtsp )
1028                     {
1029                         answer->i_status = 454;
1030                         answer->i_body = 0;
1031                         answer->p_body = NULL;
1032                         break;
1033                     }
1034                 }
1035                 else
1036                 {
1037                     p_rtsp = RtspClientGet( p_media, psz_session );
1038                     if( !p_rtsp )
1039                     {
1040                         answer->i_status = 454;
1041                         answer->i_body = 0;
1042                         answer->p_body = NULL;
1043                         break;
1044                     }
1045                 }
1046
1047                 answer->i_status = 200;
1048                 answer->i_body = 0;
1049                 answer->p_body = NULL;
1050
1051                 if( p_media->b_raw )
1052                 {
1053                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1054                     {
1055                         httpd_MsgAdd( answer, "Transport",
1056                                       "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1057                                       i_port, i_port + 1 );
1058                     }
1059                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1060                     {
1061                         httpd_MsgAdd( answer, "Transport",
1062                                       "RAW/RAW/UDP;unicast;client_port=%d-%d",
1063                                       i_port, i_port + 1 );
1064                     }
1065                 }
1066                 else
1067                     httpd_MsgAdd( answer, "Transport",
1068                                   "RTP/AVP/UDP;unicast;client_port=%d-%d",
1069                                   i_port, i_port + 1 );
1070             }
1071             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1072             {
1073                 answer->i_status = 461;
1074                 answer->i_body = 0;
1075                 answer->p_body = NULL;
1076             }
1077
1078             /* Intentional fall-through on x-playNow option in RTSP request */
1079             if( !psz_playnow )
1080                 break;
1081         }
1082
1083         case HTTPD_MSG_PLAY:
1084         {
1085             char *psz_output, ip[NI_MAXNUMERICHOST];
1086             int i, i_port_audio = 0, i_port_video = 0;
1087
1088             /* for now only multicast so easy */
1089             if( !psz_playnow )
1090             {
1091                 answer->i_status = 200;
1092                 answer->i_body = 0;
1093                 answer->p_body = NULL;
1094             }
1095
1096             if( !psz_session )
1097                 psz_session = httpd_MsgGet( query, "Session" );
1098             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1099
1100             p_rtsp = RtspClientGet( p_media, psz_session );
1101             if( !p_rtsp )
1102             {
1103                 answer->i_status = 500;
1104                 answer->i_body = 0;
1105                 answer->p_body = NULL;
1106                 break;
1107             }
1108
1109             if( p_rtsp->b_playing )
1110             {
1111                 const char *psz_position = httpd_MsgGet( query, "Range" );
1112                 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1113                 if( psz_position )
1114                     psz_position = strstr( psz_position, "npt=" );
1115                 if( psz_position && !psz_scale )
1116                 {
1117                     double f_pos = ParseNPT (psz_position + 4);
1118                     msg_Dbg( p_vod, "seeking request: %s", psz_position );
1119                     f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1120                     CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1121                                  psz_session, f_pos, NULL );
1122                 }
1123                 else if( psz_scale )
1124                 {
1125                     double f_scale = 0.0;
1126                     char *end;
1127
1128                     f_scale = us_strtod( psz_scale, &end );
1129                     if( end > psz_scale )
1130                     {
1131                         f_scale = (f_scale * 30.0);
1132                         if( psz_scale[0] == '-' ) /* rewind */
1133                         {
1134                             msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1135                             CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1136                                          psz_session, f_scale, NULL );
1137                         }
1138                         else if(psz_scale[0] != '1' ) /* fast-forward */
1139                         {
1140                             msg_Dbg( p_vod, "fastforward request: %s",
1141                                      psz_scale );
1142                             CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1143                                          psz_session, f_scale, NULL );
1144                         }
1145
1146                         if( p_rtsp->b_paused == true )
1147                         {
1148                             p_rtsp->b_paused = false;
1149                             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1150                                          psz_session, 0, NULL );
1151                         }
1152                     }
1153                     break;
1154                 }
1155             }
1156
1157             if( p_rtsp->b_playing && p_rtsp->b_paused )
1158             {
1159                 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1160                              psz_session, 0, NULL );
1161                 p_rtsp->b_paused = false;
1162                 break;
1163             }
1164             else if( p_rtsp->b_playing ) break;
1165
1166             if( httpd_ClientIP( cl, ip ) == NULL ) break;
1167
1168             p_rtsp->b_playing = true;
1169
1170             /* FIXME for != 1 video and 1 audio */
1171             for( i = 0; i < p_rtsp->i_es; i++ )
1172             {
1173                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1174                     i_port_audio = p_rtsp->es[i]->i_port;
1175                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1176                     i_port_video = p_rtsp->es[i]->i_port;
1177             }
1178
1179             if( p_media->psz_mux )
1180             {
1181                 if( p_media->b_raw )
1182                 {
1183                     if( asprintf( &psz_output,
1184                               "std{access=udp,dst=%s:%i,mux=%s}",
1185                               ip, i_port, p_media->psz_mux ) < 0 )
1186                         return VLC_ENOMEM;
1187                 }
1188                 else
1189                 {
1190                     if( asprintf( &psz_output,
1191                               "rtp{dst=%s,port=%i,mux=%s}",
1192                               ip, i_port_video, p_media->psz_mux ) < 0 )
1193                         return VLC_ENOMEM;
1194                 }
1195             }
1196             else
1197             {
1198                 if( asprintf( &psz_output,
1199                               "rtp{dst=%s,port-video=%i,port-audio=%i}",
1200                               ip, i_port_video, i_port_audio ) < 0 )
1201                     return VLC_ENOMEM;
1202             }
1203
1204             CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1205                          0, psz_output );
1206             free( psz_output );
1207             break;
1208         }
1209
1210         case HTTPD_MSG_DESCRIBE:
1211         {
1212             char *psz_sdp =
1213                 SDPGenerate( p_media, cl );
1214
1215             if( psz_sdp != NULL )
1216             {
1217                 answer->i_status = 200;
1218                 httpd_MsgAdd( answer, "Content-type",  "%s",
1219                               "application/sdp" );
1220
1221                 answer->p_body = (uint8_t *)psz_sdp;
1222                 answer->i_body = strlen( psz_sdp );
1223             }
1224             else
1225             {
1226                 answer->i_status = 500;
1227                 answer->p_body = NULL;
1228                 answer->i_body = 0;
1229             }
1230             break;
1231         }
1232
1233         case HTTPD_MSG_PAUSE:
1234             psz_session = httpd_MsgGet( query, "Session" );
1235             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1236
1237             p_rtsp = RtspClientGet( p_media, psz_session );
1238             if( !p_rtsp ) break;
1239
1240             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1241                          0, NULL );
1242             p_rtsp->b_paused = true;
1243
1244             answer->i_status = 200;
1245             answer->i_body = 0;
1246             answer->p_body = NULL;
1247             break;
1248
1249         case HTTPD_MSG_TEARDOWN:
1250             /* for now only multicast so easy again */
1251             answer->i_status = 200;
1252             answer->i_body = 0;
1253             answer->p_body = NULL;
1254
1255             psz_session = httpd_MsgGet( query, "Session" );
1256             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1257
1258             p_rtsp = RtspClientGet( p_media, psz_session );
1259             if( !p_rtsp ) break;
1260
1261             CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1262                          0, NULL );
1263             RtspClientDel( p_media, p_rtsp );
1264             break;
1265
1266         case HTTPD_MSG_GETPARAMETER:
1267             answer->i_status = 200;
1268             answer->i_body = 0;
1269             answer->p_body = NULL;
1270             break;
1271
1272         default:
1273             return VLC_EGENERIC;
1274     }
1275
1276     httpd_MsgAdd( answer, "Server", "VLC Server" );
1277     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1278     psz_cseq = httpd_MsgGet( query, "Cseq" );
1279     psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1280     httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1281     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1282
1283     if( psz_session )
1284     {
1285          if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1286              httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1287                p_media->p_vod->p_sys->i_session_timeout );
1288          else
1289               httpd_MsgAdd( answer, "Session", "%s", psz_session );
1290     }
1291
1292     return VLC_SUCCESS;
1293 }
1294
1295 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1296                            httpd_message_t *answer,
1297                            const httpd_message_t *query )
1298 {
1299     media_es_t *p_es = (media_es_t*)p_args;
1300     vod_media_t *p_media = p_es->p_media;
1301     vod_t *p_vod = p_media->p_vod;
1302     rtsp_client_t *p_rtsp = NULL;
1303     const char *psz_transport = NULL;
1304     const char *psz_playnow = NULL; /* support option: x-playNow */
1305     const char *psz_session = NULL;
1306     const char *psz_position = NULL;
1307     const char *psz_cseq = NULL;
1308     int i_cseq = 0;
1309     int i;
1310
1311     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1312
1313     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1314
1315     answer->i_proto   = HTTPD_PROTO_RTSP;
1316     answer->i_version = query->i_version;
1317     answer->i_type    = HTTPD_MSG_ANSWER;
1318     answer->i_body    = 0;
1319     answer->p_body      = NULL;
1320
1321     switch( query->i_type )
1322     {
1323         case HTTPD_MSG_SETUP:
1324             psz_playnow = httpd_MsgGet( query, "x-playNow" );
1325             psz_transport = httpd_MsgGet( query, "Transport" );
1326
1327             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1328
1329             if( strstr( psz_transport, "unicast" ) &&
1330                 strstr( psz_transport, "client_port=" ) )
1331             {
1332                 rtsp_client_t *p_rtsp = NULL;
1333                 rtsp_client_es_t *p_rtsp_es = NULL;
1334                 char ip[NI_MAXNUMERICHOST];
1335                 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1336                                    strlen("client_port=") );
1337
1338                 if( httpd_ClientIP( cl, ip ) == NULL )
1339                 {
1340                     answer->i_status = 500;
1341                     answer->i_body = 0;
1342                     answer->p_body = NULL;
1343                     break;
1344                 }
1345
1346                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1347                         ip, i_port );
1348
1349                 psz_session = httpd_MsgGet( query, "Session" );
1350                 if( !psz_session || !*psz_session )
1351                 {
1352                     char *psz_new;
1353                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1354                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1355                     {
1356                         answer->i_status = 503;
1357                         answer->i_body = 0;
1358                         answer->p_body = NULL;
1359                         break;
1360                     }
1361                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
1362                         return VLC_ENOMEM;
1363                     psz_session = psz_new;
1364
1365                     p_rtsp = RtspClientNew( p_media, psz_new );
1366                     if( !p_rtsp )
1367                     {
1368                         answer->i_status = 454;
1369                         answer->i_body = 0;
1370                         answer->p_body = NULL;
1371                         break;
1372                     }
1373                 }
1374                 else
1375                 {
1376                     p_rtsp = RtspClientGet( p_media, psz_session );
1377                     if( !p_rtsp )
1378                     {
1379                         answer->i_status = 454;
1380                         answer->i_body = 0;
1381                         answer->p_body = NULL;
1382                         break;
1383                     }
1384                 }
1385
1386                 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1387                 if( !p_rtsp_es )
1388                 {
1389                     answer->i_status = 500;
1390                     answer->i_body = 0;
1391                     answer->p_body = NULL;
1392                     break;
1393                 }
1394                 p_rtsp_es->i_port = i_port;
1395                 p_rtsp_es->p_media_es = p_es;
1396                 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1397
1398                 answer->i_status = 200;
1399                 answer->i_body = 0;
1400                 answer->p_body = NULL;
1401
1402                 if( p_media->b_raw )
1403                 {
1404                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1405                     {
1406                         httpd_MsgAdd( answer, "Transport",
1407                                      "MP2T/H2221/UDP;client_port=%d-%d",
1408                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1409                     }
1410                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1411                     {
1412                         httpd_MsgAdd( answer, "Transport",
1413                                      "RAW/RAW/UDP;client_port=%d-%d",
1414                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1415                     }
1416                 }
1417                 else
1418                 {
1419                     httpd_MsgAdd( answer, "Transport",
1420                                   "RTP/AVP/UDP;client_port=%d-%d",
1421                                   p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1422                 }
1423             }
1424             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1425             {
1426                 answer->i_status = 461;
1427                 answer->i_body = 0;
1428                 answer->p_body = NULL;
1429             }
1430
1431             /* Intentional fall-through on x-playNow option in RTSP request */
1432             if( !psz_playnow )
1433                 break;
1434
1435         case HTTPD_MSG_PLAY:
1436             /* This is kind of a kludge. Should we only support Aggregate
1437              * Operations ? */
1438             psz_session = httpd_MsgGet( query, "Session" );
1439             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1440
1441             p_rtsp = RtspClientGet( p_media, psz_session );
1442
1443             psz_position = httpd_MsgGet( query, "Range" );
1444             if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1445             if( psz_position )
1446             {
1447                 double f_pos = ParseNPT (psz_position + 4);
1448                 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1449                 f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1450                 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1451                              psz_session, f_pos, NULL );
1452             }
1453
1454             if( !psz_playnow )
1455             {
1456                 answer->i_status = 200;
1457                 answer->i_body = 0;
1458                 answer->p_body = NULL;
1459             }
1460             break;
1461
1462         case HTTPD_MSG_TEARDOWN:
1463             answer->i_status = 200;
1464             answer->i_body = 0;
1465             answer->p_body = NULL;
1466
1467             psz_session = httpd_MsgGet( query, "Session" );
1468             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1469
1470             p_rtsp = RtspClientGet( p_media, psz_session );
1471             if( !p_rtsp ) break;
1472
1473             for( i = 0; i < p_rtsp->i_es; i++ )
1474             {
1475                 if( p_rtsp->es[i]->p_media_es == p_es )
1476                 {
1477                     TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1478                     break;
1479                 }
1480             }
1481
1482             if( !p_rtsp->i_es )
1483             {
1484                 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1485                              0, NULL );
1486                 RtspClientDel( p_media, p_rtsp );
1487             }
1488             break;
1489
1490         case HTTPD_MSG_PAUSE:
1491             /* This is kind of a kludge. Should we only support Aggregate
1492              * Operations ? */
1493             psz_session = httpd_MsgGet( query, "Session" );
1494             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1495
1496             p_rtsp = RtspClientGet( p_media, psz_session );
1497             if( !p_rtsp ) break;
1498
1499             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1500                          0, NULL );
1501             p_rtsp->b_paused = true;
1502
1503             answer->i_status = 200;
1504             answer->i_body = 0;
1505             answer->p_body = NULL;
1506             break;
1507
1508         default:
1509             return VLC_EGENERIC;
1510             break;
1511     }
1512
1513     httpd_MsgAdd( answer, "Server", "VLC Server" );
1514     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1515     psz_cseq = httpd_MsgGet( query, "Cseq" );
1516     if (psz_cseq)
1517         i_cseq = atoi( psz_cseq );
1518     else
1519         i_cseq = 0;
1520     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1521     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1522
1523     if( psz_session )
1524         httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1525
1526     return VLC_SUCCESS;
1527 }
1528
1529 /*****************************************************************************
1530  * SDPGenerate: TODO
1531  * FIXME: need to be moved to a common place ?
1532  *****************************************************************************/
1533 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1534 {
1535     char *psz_sdp, ip[NI_MAXNUMERICHOST];
1536     const char *psz_control;
1537
1538     if( httpd_ServerIP( cl, ip ) == NULL )
1539         return NULL;
1540
1541     bool ipv6 = ( strchr( ip, ':' ) != NULL );
1542
1543     psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1544                        : p_media->psz_rtsp_control_v4;
1545
1546     /* Dummy destination address for RTSP */
1547     struct sockaddr_storage dst;
1548     socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1549                             : sizeof( struct sockaddr_in );
1550     memset (&dst, 0, dstlen);
1551     dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1552 #ifdef HAVE_SA_LEN
1553     dst.ss_len = dstlen;
1554 #endif
1555
1556     psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1557                              NULL, 0, (struct sockaddr *)&dst, dstlen );
1558     if( psz_sdp == NULL )
1559         return NULL;
1560
1561     if( p_media->i_length > 0 )
1562     {
1563         lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1564         sdp_AddAttribute( &psz_sdp, "range"," npt=0-%lld.%03u", d.quot,
1565                           (unsigned)d.rem );
1566     }
1567
1568     for( int i = 0; i < p_media->i_es; i++ )
1569     {
1570         media_es_t *p_es = p_media->es[i];
1571         const char *mime_major; /* major MIME type */
1572
1573         switch( p_es->fmt.i_cat )
1574         {
1575             case VIDEO_ES:
1576                 mime_major = "video";
1577                 break;
1578             case AUDIO_ES:
1579                 mime_major = "audio";
1580                 break;
1581             case SPU_ES:
1582                 mime_major = "text";
1583                 break;
1584             default:
1585                 continue;
1586         }
1587
1588         sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1589                       p_es->i_payload_type, false, 0,
1590                       p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1591                       p_es->psz_fmtp );
1592
1593         sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, i );
1594     }
1595
1596     return psz_sdp;
1597 }