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

   1 /*****************************************************************************
   2  * rtsp.c: rtsp VoD server module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #define _GNU_SOURCE
  29
  30 #include <errno.h>
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc_input.h>
  34 #include <vlc_sout.h>
  35 #include <vlc_block.h>
  36
  37 #include "vlc_httpd.h"
  38 #include "vlc_vod.h"
  39 #include "vlc_url.h"
  40 #include <vlc_network.h>
  41 #include <vlc_charset.h>
  42 #include <vlc_strings.h>
  43
  44 /*****************************************************************************
  45  * Module descriptor
  46  *****************************************************************************/
  47 static int  Open ( vlc_object_t * );
  48 static void Close( vlc_object_t * );
  49
  50 #define HOST_TEXT N_( "RTSP host address" )
  51 #define HOST_LONGTEXT N_( \
  52     "This defines the address, port and path the RTSP VOD server will listen " \
  53     "on.\nSyntax is address:port/path. The default is to listen on all "\
  54     "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
  55     "only on the local interface, use \"localhost\" as address." )
  56
  57 #define THROTLE_TEXT N_( "Maximum number of connections" )
  58 #define THROTLE_LONGTEXT N_( "This limits the maximum number of clients " \
  59     "that can connect to the RTSP VOD. 0 means no limit."  )
  60
  61 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
  62
  63 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
  64     "session string" )
  65 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
  66     "to the RTSP session ID string. Setting it to a negative number removes " \
  67     "the timeout option entirely. This is needed by some IPTV STBs (such as " \
  68     "those made by HansunTech) which get confused by it. The default is 5." )
  69
  70 vlc_module_begin();
  71     set_shortname( _("RTSP VoD" ) );
  72     set_description( _("RTSP VoD server") );
  73     set_category( CAT_SOUT );
  74     set_subcategory( SUBCAT_SOUT_VOD );
  75     set_capability( "vod server", 1 );
  76     set_callbacks( Open, Close );
  77     add_shortcut( "rtsp" );
  78     add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, VLC_TRUE );
  79     add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT, RAWMUX_TEXT, VLC_TRUE );
  80     add_integer( "rtsp-throttle-users", 0, NULL, THROTLE_TEXT,
  81                                            THROTLE_LONGTEXT, VLC_TRUE );
  82     add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
  83                  SESSION_TIMEOUT_LONGTEXT, VLC_TRUE );
  84 vlc_module_end();
  85
  86 /*****************************************************************************
  87  * Exported prototypes
  88  *****************************************************************************/
  89
  90 typedef struct media_es_t media_es_t;
  91
  92 typedef struct
  93 {
  94     media_es_t *p_media_es;
  95     char *psz_ip;
  96     int i_port;
  97
  98 } rtsp_client_es_t;
  99
 100 typedef struct
 101 {
 102     char *psz_session;
 103     int64_t i_last; /* for timeout */
 104
 105     vlc_bool_t b_playing; /* is it in "play" state */
 106     vlc_bool_t b_paused; /* is it in "pause" state */
 107
 108     int i_es;
 109     rtsp_client_es_t **es;
 110
 111 } rtsp_client_t;
 112
 113 struct media_es_t
 114 {
 115     /* VoD server */
 116     vod_t *p_vod;
 117
 118     /* RTSP server */
 119     httpd_url_t *p_rtsp_url;
 120
 121     vod_media_t *p_media;
 122
 123     es_format_t fmt;
 124     int         i_port;
 125     uint8_t     i_payload_type;
 126     char        *psz_rtpmap;
 127     char        *psz_fmtp;
 128
 129 };
 130
 131 struct vod_media_t
 132 {
 133     int id;
 134
 135     /* VoD server */
 136     vod_t *p_vod;
 137
 138     /* RTSP server */
 139     httpd_url_t  *p_rtsp_url;
 140     char         *psz_rtsp_control_v4;
 141     char         *psz_rtsp_control_v6;
 142     char         *psz_rtsp_path;
 143
 144     int  i_port;
 145     int  i_port_audio;
 146     int  i_port_video;
 147     int  i_ttl;
 148     int  i_payload_type;
 149
 150     int64_t i_sdp_id;
 151     int     i_sdp_version;
 152
 153     vlc_bool_t b_multicast;
 154
 155     vlc_mutex_t lock;
 156
 157     /* ES list */
 158     int        i_es;
 159     media_es_t **es;
 160     char       *psz_mux;
 161     vlc_bool_t  b_raw;
 162
 163     /* RTSP client */
 164     int           i_rtsp;
 165     rtsp_client_t **rtsp;
 166
 167     /* Infos */
 168     char *psz_session_name;
 169     char *psz_session_description;
 170     char *psz_session_url;
 171     char *psz_session_email;
 172     mtime_t i_length;
 173 };
 174
 175 struct vod_sys_t
 176 {
 177     /* RTSP server */
 178     httpd_host_t *p_rtsp_host;
 179     char *psz_path;
 180     int i_port;
 181     int i_throttle_users;
 182     int i_connections;
 183
 184     char *psz_raw_mux;
 185
 186     int i_session_timeout;
 187
 188     /* List of media */
 189     vlc_mutex_t lock_media;
 190     int i_media_id;
 191     int i_media;
 192     vod_media_t **media;
 193
 194     /* */
 195     block_fifo_t *p_fifo_cmd;
 196 };
 197
 198 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
 199 typedef enum
 200 {
 201     RTSP_CMD_TYPE_NONE,  /* Exit requested */
 202
 203     RTSP_CMD_TYPE_PLAY,
 204     RTSP_CMD_TYPE_PAUSE,
 205     RTSP_CMD_TYPE_STOP,
 206     RTSP_CMD_TYPE_SEEK,
 207     RTSP_CMD_TYPE_REWIND,
 208     RTSP_CMD_TYPE_FORWARD,
 209 } rtsp_cmd_type_t;
 210
 211 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
 212 static void         MediaDel( vod_t *, vod_media_t * );
 213 static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
 214 static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );
 215
 216 static void CommandThread( vlc_object_t *p_this );
 217 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *, const char *psz_session,
 218                          double f_arg, const char *psz_arg );
 219
 220 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
 221 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
 222 static void           RtspClientDel( vod_media_t *, rtsp_client_t * );
 223
 224 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
 225                          httpd_message_t *, httpd_message_t * );
 226 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
 227                            httpd_message_t *, httpd_message_t * );
 228
 229 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
 230
 231 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
 232 {
 233     static const char hex[16] = "0123456789abcdef";
 234     int i;
 235
 236     for( i = 0; i < i_data; i++ )
 237     {
 238         s[2*i+0] = hex[(p_data[i]>>4)&0xf];
 239         s[2*i+1] = hex[(p_data[i]   )&0xf];
 240     }
 241     s[2*i_data] = '\0';
 242 }
 243
 244 /*****************************************************************************
 245  * Open: Starts the RTSP server module
 246  *****************************************************************************/
 247 static int Open( vlc_object_t *p_this )
 248 {
 249     vod_t *p_vod = (vod_t *)p_this;
 250     vod_sys_t *p_sys = 0;
 251     char *psz_url = 0;
 252     vlc_url_t url;
 253
 254     psz_url = config_GetPsz( p_vod, "rtsp-host" );
 255     vlc_UrlParse( &url, psz_url, 0 );
 256     if( psz_url ) free( psz_url );
 257
 258     if( url.i_port <= 0 ) url.i_port = 554;
 259
 260     p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
 261     if( !p_sys ) goto error;
 262     p_sys->p_rtsp_host = 0;
 263
 264     p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
 265
 266     p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
 267     msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
 268     p_sys->i_connections = 0;
 269
 270     p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
 271
 272     p_sys->p_rtsp_host =
 273         httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
 274     if( !p_sys->p_rtsp_host )
 275     {
 276         msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
 277                  url.psz_host, url.i_port );
 278         goto error;
 279     }
 280
 281     p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
 282     p_sys->i_port = url.i_port;
 283
 284     vlc_UrlClean( &url );
 285
 286     vlc_mutex_init( p_vod, &p_sys->lock_media );
 287
 288     TAB_INIT( p_sys->i_media, p_sys->media );
 289     p_sys->i_media_id = 0;
 290
 291     p_vod->pf_media_new = MediaNew;
 292     p_vod->pf_media_del = MediaDel;
 293     p_vod->pf_media_add_es = MediaAddES;
 294     p_vod->pf_media_del_es = MediaDelES;
 295
 296     p_sys->p_fifo_cmd = block_FifoNew( p_vod );
 297     if( vlc_thread_create( p_vod, "rtsp vod thread", CommandThread,
 298                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
 299     {
 300         msg_Err( p_vod, "cannot spawn rtsp vod thread" );
 301         block_FifoRelease( p_sys->p_fifo_cmd );
 302         free( p_sys->psz_path );
 303         goto error;
 304     }
 305
 306     return VLC_SUCCESS;
 307
 308 error:
 309     if( p_sys && p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
 310     if( p_sys && p_sys->psz_raw_mux ) free( p_sys->psz_raw_mux );
 311     if( p_sys ) free( p_sys );
 312     vlc_UrlClean( &url );
 313
 314     return VLC_EGENERIC;
 315 }
 316
 317 /*****************************************************************************
 318  * Close:
 319  *****************************************************************************/
 320 static void Close( vlc_object_t * p_this )
 321 {
 322     vod_t *p_vod = (vod_t *)p_this;
 323     vod_sys_t *p_sys = p_vod->p_sys;
 324
 325     /* Stop command thread */
 326     vlc_object_kill( p_vod );
 327     CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0.0, NULL );
 328     vlc_thread_join( p_vod );
 329
 330     block_FifoRelease( p_sys->p_fifo_cmd );
 331
 332     httpd_HostDelete( p_sys->p_rtsp_host );
 333     var_Destroy( p_this, "rtsp-session-timeout" );
 334     var_Destroy( p_this, "rtsp-throttle-users" );
 335     var_Destroy( p_this, "rtsp-raw-mux" );
 336
 337     /* Check VLM is not buggy */
 338     if( p_sys->i_media > 0 )
 339         msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
 340     TAB_CLEAN( p_sys->i_media, p_sys->media );
 341
 342     vlc_mutex_destroy( &p_sys->lock_media );
 343
 344     free( p_sys->psz_path );
 345     free( p_sys->psz_raw_mux );
 346     free( p_sys );
 347 }
 348
 349 /*****************************************************************************
 350  * Media handling
 351  *****************************************************************************/
 352 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
 353                               input_item_t *p_item )
 354 {
 355     vod_sys_t *p_sys = p_vod->p_sys;
 356     vod_media_t *p_media = malloc( sizeof(vod_media_t) );
 357     int i;
 358
 359     if( !p_media )
 360     {
 361         msg_Err( p_vod, "not enough memory" );
 362         return NULL;
 363     }
 364
 365     memset( p_media, 0, sizeof(vod_media_t) );
 366     p_media->id = p_sys->i_media_id++;
 367     TAB_INIT( p_media->i_es, p_media->es );
 368     p_media->psz_mux = 0;
 369     TAB_INIT( p_media->i_rtsp, p_media->rtsp );
 370     p_media->b_raw = VLC_FALSE;
 371
 372     asprintf( &p_media->psz_rtsp_path, "%s%s", p_sys->psz_path, psz_name );
 373     p_media->p_rtsp_url =
 374         httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
 375                             NULL, NULL );
 376
 377     if( !p_media->p_rtsp_url )
 378     {
 379         msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
 380         free( p_media->psz_rtsp_path );
 381         free( p_media );
 382         return NULL;
 383     }
 384
 385     msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
 386
 387     asprintf( &p_media->psz_rtsp_control_v4,
 388                "a=control:rtsp://%%s:%d%s/trackID=%%d\r\n",
 389                p_sys->i_port, p_media->psz_rtsp_path );
 390     asprintf( &p_media->psz_rtsp_control_v6,
 391                "a=control:rtsp://[%%s]:%d%s/trackID=%%d\r\n",
 392               p_sys->i_port, p_media->psz_rtsp_path );
 393
 394     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
 395                     RtspCallback, (void*)p_media );
 396     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
 397                     RtspCallback, (void*)p_media );
 398     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
 399                     RtspCallback, (void*)p_media );
 400     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
 401                     RtspCallback, (void*)p_media );
 402     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
 403                     RtspCallback, (void*)p_media );
 404     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 405                     RtspCallback, (void*)p_media );
 406
 407     p_media->p_vod = p_vod;
 408
 409     vlc_mutex_lock( &p_sys->lock_media );
 410     TAB_APPEND( p_sys->i_media, p_sys->media, p_media );
 411     vlc_mutex_unlock( &p_sys->lock_media );
 412
 413     vlc_mutex_init( p_vod, &p_media->lock );
 414     p_media->psz_session_name = strdup("");
 415     p_media->psz_session_description = strdup("");
 416     p_media->psz_session_url = strdup("");
 417     p_media->psz_session_email = strdup("");
 418
 419     p_media->i_port_audio = 1234;
 420     p_media->i_port_video = 1236;
 421     p_media->i_port       = 1238;
 422     p_media->i_payload_type = 96;
 423
 424     p_media->i_sdp_id = mdate();
 425     p_media->i_sdp_version = 1;
 426     p_media->i_length = p_item->i_duration;
 427
 428     vlc_mutex_lock( &p_item->lock );
 429     msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
 430     for( i = 0; i < p_item->i_es; i++ )
 431     {
 432         MediaAddES( p_vod, p_media, p_item->es[i] );
 433     }
 434     vlc_mutex_unlock( &p_item->lock );
 435
 436     return p_media;
 437 }
 438
 439 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
 440 {
 441     vod_sys_t *p_sys = p_vod->p_sys;
 442
 443     msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
 444
 445     vlc_mutex_lock( &p_sys->lock_media );
 446     TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
 447     vlc_mutex_unlock( &p_sys->lock_media );
 448
 449     while( p_media->i_rtsp > 0 )
 450         RtspClientDel( p_media, p_media->rtsp[0] );
 451     TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
 452
 453     httpd_UrlDelete( p_media->p_rtsp_url );
 454     if( p_media->psz_rtsp_path ) free( p_media->psz_rtsp_path );
 455     if( p_media->psz_rtsp_control_v6 ) free( p_media->psz_rtsp_control_v6 );
 456     if( p_media->psz_rtsp_control_v4 ) free( p_media->psz_rtsp_control_v4 );
 457
 458     while( p_media->i_es )
 459         MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
 460     TAB_CLEAN( p_media->i_es, p_media->es );
 461
 462     vlc_mutex_destroy( &p_media->lock );
 463
 464     if( p_media->psz_session_name ) free( p_media->psz_session_name );
 465     if( p_media->psz_session_description ) free( p_media->psz_session_description );
 466     if( p_media->psz_session_url ) free( p_media->psz_session_url );
 467     if( p_media->psz_session_email ) free( p_media->psz_session_email );
 468     if( p_media->psz_mux ) free( p_media->psz_mux );
 469     free( p_media );
 470 }
 471
 472 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
 473 {
 474     media_es_t *p_es = malloc( sizeof(media_es_t) );
 475     char *psz_urlc;
 476
 477     if( !p_es ) return VLC_ENOMEM;
 478     memset( p_es, 0, sizeof(media_es_t) );
 479
 480     if( p_media->psz_mux ) free( p_media->psz_mux );
 481     p_media->psz_mux = NULL;
 482
 483     /* TODO: update SDP, etc... */
 484     asprintf( &psz_urlc, "%s/trackID=%d",
 485               p_media->psz_rtsp_path, p_media->i_es );
 486     msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
 487
 488     switch( p_fmt->i_codec )
 489     {
 490         case VLC_FOURCC( 's', '1', '6', 'b' ):
 491             if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
 492             {
 493                 p_es->i_payload_type = 11;
 494             }
 495             else if( p_fmt->audio.i_channels == 2 && p_fmt->audio.i_rate == 44100 )
 496             {
 497                 p_es->i_payload_type = 10;
 498             }
 499             else
 500             {
 501                 p_es->i_payload_type = p_media->i_payload_type++;
 502             }
 503             p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
 504             sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
 505                     p_fmt->audio.i_channels );
 506             break;
 507         case VLC_FOURCC( 'u', '8', ' ', ' ' ):
 508             p_es->i_payload_type = p_media->i_payload_type++;
 509             p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
 510             sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
 511                     p_fmt->audio.i_channels );
 512             break;
 513         case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
 514             p_es->i_payload_type = 14;
 515             p_es->psz_rtpmap = strdup( "MPA/90000" );
 516             break;
 517         case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
 518             p_es->i_payload_type = 32;
 519             p_es->psz_rtpmap = strdup( "MPV/90000" );
 520             break;
 521         case VLC_FOURCC( 'a', '5', '2', ' ' ):
 522             p_es->i_payload_type = p_media->i_payload_type++;
 523             p_es->psz_rtpmap = strdup( "ac3/90000" );
 524             break;
 525         case VLC_FOURCC( 'H', '2', '6', '3' ):
 526             p_es->i_payload_type = p_media->i_payload_type++;
 527             p_es->psz_rtpmap = strdup( "H263-1998/90000" );
 528             break;
 529         case VLC_FOURCC( 'h', '2', '6', '4' ):
 530             p_es->i_payload_type = p_media->i_payload_type++;
 531             p_es->psz_rtpmap = strdup( "H264/90000" );
 532             p_es->psz_fmtp = NULL;
 533             /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
 534             if( p_fmt->i_extra > 0 )
 535             {
 536                 uint8_t *p_buffer = p_fmt->p_extra;
 537                 int     i_buffer = p_fmt->i_extra;
 538                 char    *p_64_sps = NULL;
 539                 char    *p_64_pps = NULL;
 540                 char    hexa[6+1];
 541
 542                 while( i_buffer > 4 &&
 543                        p_buffer[0] == 0 && p_buffer[1] == 0 &&
 544                        p_buffer[2] == 0 && p_buffer[3] == 1 )
 545                 {
 546                     const int i_nal_type = p_buffer[4]&0x1f;
 547                     int i_offset;
 548                     int i_size      = 0;
 549
 550                     i_size = i_buffer;
 551                     for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
 552                     {
 553                         if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
 554                         {
 555                             /* we found another startcode */
 556                             i_size = i_offset;
 557                             break;
 558                         }
 559                     }
 560                     if( i_nal_type == 7 )
 561                     {
 562                         p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 563                         sprintf_hexa( hexa, &p_buffer[5], 3 );
 564                     }
 565                     else if( i_nal_type == 8 )
 566                     {
 567                         p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
 568                     }
 569                     i_buffer -= i_size;
 570                     p_buffer += i_size;
 571                 }
 572                 /* */
 573                 if( p_64_sps && p_64_pps )
 574                     asprintf( &p_es->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
 575                 if( p_64_sps )
 576                     free( p_64_sps );
 577                 if( p_64_pps )
 578                     free( p_64_pps );
 579             }
 580             if( !p_es->psz_fmtp )
 581                 p_es->psz_fmtp = strdup( "packetization-mode=1" );
 582             break;
 583         case VLC_FOURCC( 'm', 'p', '4', 'v' ):
 584             p_es->i_payload_type = p_media->i_payload_type++;
 585             p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
 586             if( p_fmt->i_extra > 0 )
 587             {
 588                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 589                 p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
 590                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 591                 sprintf( p_es->psz_fmtp,
 592                         "profile-level-id=3; config=%s;", p_hexa );
 593                 free( p_hexa );
 594             }
 595             break;
 596         case VLC_FOURCC( 'm', 'p', '4', 'a' ):
 597             p_es->i_payload_type = p_media->i_payload_type++;
 598             p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
 599             sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
 600             if( p_fmt->i_extra > 0 )
 601             {
 602                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
 603                 p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
 604                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
 605                 sprintf( p_es->psz_fmtp,
 606                         "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
 607                         "config=%s; SizeLength=13;IndexLength=3; "
 608                         "IndexDeltaLength=3; Profile=1;", p_hexa );
 609                 free( p_hexa );
 610             }
 611             break;
 612         case VLC_FOURCC( 'm', 'p', '2', 't' ):
 613             p_media->psz_mux = strdup("ts");
 614             p_es->i_payload_type = 33;
 615             p_es->psz_rtpmap = strdup( "MP2T/90000" );
 616             break;
 617         case VLC_FOURCC( 'm', 'p', '2', 'p' ):
 618             p_media->psz_mux = strdup("ps");
 619             p_es->i_payload_type = p_media->i_payload_type++;
 620             p_es->psz_rtpmap = strdup( "MP2P/90000" );
 621             break;
 622         case VLC_FOURCC( 's', 'a', 'm', 'r' ):
 623             p_es->i_payload_type = p_media->i_payload_type++;
 624             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 625                                     "AMR/8000/2" : "AMR/8000" );
 626             p_es->psz_fmtp = strdup( "octet-align=1" );
 627             break;
 628         case VLC_FOURCC( 's', 'a', 'w', 'b' ):
 629             p_es->i_payload_type = p_media->i_payload_type++;
 630             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
 631                                     "AMR-WB/16000/2" : "AMR-WB/16000" );
 632             p_es->psz_fmtp = strdup( "octet-align=1" );
 633             break;
 634
 635         default:
 636             msg_Err( p_vod, "cannot add this stream (unsupported "
 637                     "codec: %4.4s)", (char*)&p_fmt->i_codec );
 638             free( p_es );
 639             return VLC_EGENERIC;
 640     }
 641
 642     p_es->p_rtsp_url =
 643         httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
 644                             NULL );
 645
 646     if( !p_es->p_rtsp_url )
 647     {
 648         msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
 649         free( psz_urlc );
 650         free( p_es );
 651         return VLC_EGENERIC;
 652     }
 653     free( psz_urlc );
 654
 655     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
 656                     RtspCallbackES, (void*)p_es );
 657     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
 658                     RtspCallbackES, (void*)p_es );
 659     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
 660                     RtspCallbackES, (void*)p_es );
 661     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
 662                     RtspCallbackES, (void*)p_es );
 663
 664     es_format_Copy( &p_es->fmt, p_fmt );
 665     p_es->p_vod = p_vod;
 666     p_es->p_media = p_media;
 667
 668 #if 0
 669     /* Choose the port */
 670     if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
 671     {
 672         p_es->i_port = p_media->i_port_audio;
 673         p_media->i_port_audio = 0;
 674     }
 675     else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
 676     {
 677         p_es->i_port = p_media->i_port_video;
 678         p_media->i_port_video = 0;
 679     }
 680     while( !p_es->i_port )
 681     {
 682         if( p_media->i_port != p_media->i_port_audio &&
 683             p_media->i_port != p_media->i_port_video )
 684         {
 685             p_es->i_port = p_media->i_port;
 686             p_media->i_port += 2;
 687             break;
 688         }
 689         p_media->i_port += 2;
 690     }
 691 #else
 692
 693     p_es->i_port = 0;
 694 #endif
 695
 696     vlc_mutex_lock( &p_media->lock );
 697     TAB_APPEND( p_media->i_es, p_media->es, p_es );
 698     vlc_mutex_unlock( &p_media->lock );
 699
 700     p_media->i_sdp_version++;
 701
 702     return VLC_SUCCESS;
 703 }
 704
 705 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
 706 {
 707     media_es_t *p_es = NULL;
 708     int i;
 709
 710     /* Find the ES */
 711     for( i = 0; i < p_media->i_es; i++ )
 712     {
 713         if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
 714             p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
 715             p_media->es[i]->fmt.i_id == p_fmt->i_id )
 716         {
 717             p_es = p_media->es[i];
 718         }
 719     }
 720     if( !p_es ) return;
 721
 722     msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );
 723
 724     vlc_mutex_lock( &p_media->lock );
 725     TAB_REMOVE( p_media->i_es, p_media->es, p_es );
 726     vlc_mutex_unlock( &p_media->lock );
 727
 728     if( p_es->psz_rtpmap ) free( p_es->psz_rtpmap );
 729     if( p_es->psz_fmtp ) free( p_es->psz_fmtp );
 730     p_media->i_sdp_version++;
 731
 732     if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
 733     es_format_Clean( &p_es->fmt );
 734     free( p_es );
 735 }
 736
 737 /* */
 738 typedef struct
 739 {
 740     int i_type;
 741     int i_media_id;
 742     //vod_media_t *p_media;
 743     char *psz_session;
 744     char *psz_arg;
 745     double f_arg;
 746 } rtsp_cmd_t;
 747
 748 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session,
 749                          double f_arg, const char *psz_arg )
 750 {
 751     rtsp_cmd_t cmd;
 752     block_t *p_cmd;
 753
 754     memset( &cmd, 0, sizeof(cmd) );
 755     cmd.i_type = i_type;
 756     if( p_media )
 757         cmd.i_media_id = p_media->id;
 758     if( psz_session )
 759         cmd.psz_session = strdup(psz_session);
 760     cmd.f_arg = f_arg;
 761     if( psz_arg )
 762         cmd.psz_arg = strdup(psz_arg);
 763
 764     p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
 765     memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
 766
 767     block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
 768 }
 769
 770 static void CommandThread( vlc_object_t *p_this )
 771 {
 772     vod_t *p_vod = (vod_t*)p_this;
 773     vod_sys_t *p_sys = p_vod->p_sys;
 774
 775     while( !p_vod->b_die )
 776     {
 777         block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
 778         rtsp_cmd_t cmd;
 779         vod_media_t *p_media = NULL;
 780         int i;
 781
 782         if( !p_block_cmd )
 783             break;
 784
 785         memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
 786         block_Release( p_block_cmd );
 787
 788         if( cmd.i_type == RTSP_CMD_TYPE_NONE )
 789             break;
 790
 791         /* */
 792         vlc_mutex_lock( &p_sys->lock_media );
 793         for( i = 0; i < p_sys->i_media; i++ )
 794         {
 795             if( p_sys->media[i]->id == cmd.i_media_id )
 796                 break;
 797         }
 798         if( i >= p_sys->i_media )
 799             goto next;
 800         p_media = p_sys->media[i];
 801
 802         switch( cmd.i_type )
 803         {
 804         case RTSP_CMD_TYPE_PLAY:
 805             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 806                               VOD_MEDIA_PLAY, cmd.psz_arg );
 807             break;
 808         case RTSP_CMD_TYPE_PAUSE:
 809             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 810                               VOD_MEDIA_PAUSE );
 811             break;
 812
 813         case RTSP_CMD_TYPE_STOP:
 814             vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
 815             break;
 816
 817         case RTSP_CMD_TYPE_SEEK:
 818             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 819                               VOD_MEDIA_SEEK, cmd.f_arg );
 820             break;
 821
 822         case RTSP_CMD_TYPE_REWIND:
 823             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 824                               VOD_MEDIA_REWIND, cmd.f_arg );
 825             break;
 826
 827         case RTSP_CMD_TYPE_FORWARD:
 828             vod_MediaControl( p_vod, p_media, cmd.psz_session,
 829                               VOD_MEDIA_FORWARD, cmd.f_arg );
 830             break;
 831
 832         default:
 833             break;
 834         }
 835
 836     next:
 837         vlc_mutex_unlock( &p_sys->lock_media );
 838         if( cmd.psz_session )
 839             free( cmd.psz_session );
 840         if( cmd.psz_arg )
 841             free( cmd.psz_arg );
 842     }
 843 }
 844
 845 /****************************************************************************
 846  * RTSP server implementation
 847  ****************************************************************************/
 848 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
 849 {
 850     rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
 851
 852     if( !p_rtsp ) return NULL;
 853     memset( p_rtsp, 0, sizeof(rtsp_client_t) );
 854     p_rtsp->es = 0;
 855
 856     p_rtsp->psz_session = psz_session;
 857     TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 858
 859     p_media->p_vod->p_sys->i_connections++;
 860     msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
 861              psz_session, p_media->p_vod->p_sys->i_throttle_users );
 862
 863     return p_rtsp;
 864 }
 865
 866 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
 867 {
 868     int i;
 869
 870     for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
 871     {
 872         if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
 873             return p_media->rtsp[i];
 874     }
 875
 876     return NULL;
 877 }
 878
 879 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
 880 {
 881     p_media->p_vod->p_sys->i_connections--;
 882     msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
 883              p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
 884
 885     while( p_rtsp->i_es-- )
 886     {
 887         if( p_rtsp->es[p_rtsp->i_es]->psz_ip )
 888             free( p_rtsp->es[p_rtsp->i_es]->psz_ip );
 889         free( p_rtsp->es[p_rtsp->i_es] );
 890         if( !p_rtsp->i_es ) free( p_rtsp->es );
 891     }
 892
 893     TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
 894
 895     free( p_rtsp->psz_session );
 896     free( p_rtsp );
 897 }
 898
 899 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
 900                          httpd_message_t *answer, httpd_message_t *query )
 901 {
 902     vod_media_t *p_media = (vod_media_t*)p_args;
 903     vod_t *p_vod = p_media->p_vod;
 904     const char *psz_transport = NULL;
 905     const char *psz_playnow = NULL; /* support option: x-playNow */
 906     const char *psz_session = NULL;
 907     const char *psz_cseq = NULL;
 908     rtsp_client_t *p_rtsp;
 909     int i_port = 0;
 910     int i_cseq = 0;
 911
 912     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
 913
 914     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
 915
 916     answer->i_proto   = HTTPD_PROTO_RTSP;
 917     answer->i_version = query->i_version;
 918     answer->i_type    = HTTPD_MSG_ANSWER;
 919     answer->i_body    = 0;
 920     answer->p_body    = NULL;
 921
 922     switch( query->i_type )
 923     {
 924         case HTTPD_MSG_SETUP:
 925         {
 926             psz_playnow = httpd_MsgGet( query, "x-playNow" );
 927             psz_transport = httpd_MsgGet( query, "Transport" );
 928             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
 929
 930             if( strstr( psz_transport, "unicast" ) &&
 931                 strstr( psz_transport, "client_port=" ) )
 932             {
 933                 rtsp_client_t *p_rtsp = NULL;
 934                 char ip[NI_MAXNUMERICHOST];
 935                 i_port = atoi( strstr( psz_transport, "client_port=" ) +
 936                                 strlen("client_port=") );
 937
 938                 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
 939                     strstr( psz_transport, "RAW/RAW/UDP" ) )
 940                 {
 941                     if( p_media->psz_mux ) free( p_media->psz_mux );
 942                     p_media->psz_mux = NULL;
 943                     p_media->psz_mux = strdup( p_vod->p_sys->psz_raw_mux );
 944                     p_media->b_raw = VLC_TRUE;
 945                 }
 946
 947                 if( httpd_ClientIP( cl, ip ) == NULL )
 948                 {
 949                     answer->i_status = 500;
 950                     answer->psz_status = strdup( "Internal server error" );
 951                     answer->i_body = 0;
 952                     answer->p_body = NULL;
 953                     break;
 954                 }
 955
 956                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
 957                          ip, i_port );
 958
 959                 psz_session = httpd_MsgGet( query, "Session" );
 960                 if( !psz_session || !*psz_session )
 961                 {
 962                     char *psz_new;
 963                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
 964                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
 965                     {
 966                         answer->i_status = 503;
 967                         answer->psz_status = strdup( "Too many connections" );
 968                         answer->i_body = 0;
 969                         answer->p_body = NULL;
 970                         break;
 971                     }
 972                     asprintf( &psz_new, "%d", rand() );
 973                     psz_session = psz_new;
 974
 975                     p_rtsp = RtspClientNew( p_media, psz_new );
 976                     if( !p_rtsp )
 977                     {
 978                         answer->i_status = 454;
 979                         answer->psz_status = strdup( "Unknown session id" );
 980                         answer->i_body = 0;
 981                         answer->p_body = NULL;
 982                         break;
 983                     }
 984                 }
 985                 else
 986                 {
 987                     p_rtsp = RtspClientGet( p_media, psz_session );
 988                     if( !p_rtsp )
 989                     {
 990                         answer->i_status = 454;
 991                         answer->psz_status = strdup( "Unknown session id" );
 992                         answer->i_body = 0;
 993                         answer->p_body = NULL;
 994                         break;
 995                     }
 996                 }
 997
 998                 answer->i_status = 200;
 999                 answer->psz_status = strdup( "OK" );
1000                 answer->i_body = 0;
1001                 answer->p_body = NULL;
1002
1003                 if( p_media->b_raw )
1004                 {
1005                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1006                     {
1007                         httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
1008                                       i_port, i_port + 1 );
1009                     }
1010                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1011                     {
1012                         httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
1013                                       i_port, i_port + 1 );
1014                     }
1015                 }
1016                 else
1017                     httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
1018                                   i_port, i_port + 1 );
1019             }
1020             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1021             {
1022                 answer->i_status = 461;
1023                 answer->psz_status = strdup( "Unsupported Transport" );
1024                 answer->i_body = 0;
1025                 answer->p_body = NULL;
1026             }
1027
1028             /* Intentional fall-through on x-playNow option in RTSP request */
1029             if( !psz_playnow )
1030                 break;
1031         }
1032
1033         case HTTPD_MSG_PLAY:
1034         {
1035             char *psz_output, ip[NI_MAXNUMERICHOST];
1036             int i, i_port_audio = 0, i_port_video = 0;
1037
1038             /* for now only multicast so easy */
1039             if( !psz_playnow )
1040             {
1041                 answer->i_status = 200;
1042                 answer->psz_status = strdup( "OK" );
1043                 answer->i_body = 0;
1044                 answer->p_body = NULL;
1045             }
1046
1047             if( !psz_session )
1048                 psz_session = httpd_MsgGet( query, "Session" );
1049             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1050
1051             p_rtsp = RtspClientGet( p_media, psz_session );
1052             if( !p_rtsp )
1053             {
1054                 answer->i_status = 500;
1055                 answer->psz_status = strdup( "Internal server error" );
1056                 answer->i_body = 0;
1057                 answer->p_body = NULL;
1058                 break;
1059             }
1060
1061             if( p_rtsp->b_playing )
1062             {
1063                 const char *psz_position = httpd_MsgGet( query, "Range" );
1064                 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1065                 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1066                 if( psz_position && !psz_scale )
1067                 {
1068                     double f_pos;
1069                     char *end;
1070
1071                     msg_Dbg( p_vod, "seeking request: %s", psz_position );
1072                     psz_position += 4;
1073                     /* FIXME: npt= is not necessarily formatted as a float */
1074                     f_pos = us_strtod( psz_position, &end );
1075                     if( end > psz_position )
1076                     {
1077                         f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1078                         CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media, psz_session, f_pos, NULL );
1079                     }
1080                     break;
1081                 }
1082                 if( psz_scale )
1083                 {
1084                     double f_scale = 0.0;
1085                     char *end;
1086
1087                     f_scale = us_strtod( psz_scale, &end );
1088                     if( end > psz_scale )
1089                     {
1090                         f_scale = (f_scale * 30.0);
1091                         if( psz_scale[0] == '-' ) /* rewind */
1092                         {
1093                             msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1094                             CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media, psz_session, f_scale, NULL );
1095                         }
1096                         else if(psz_scale[0] != '1' ) /* fast-forward */
1097                         {
1098                             msg_Dbg( p_vod, "fastforward request: %s", psz_scale );
1099                             CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media, psz_session, f_scale, NULL );
1100                         }
1101
1102                         if( p_rtsp->b_paused == VLC_TRUE )
1103                         {
1104                             p_rtsp->b_paused = VLC_FALSE;
1105                             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session, 0, NULL );
1106                         }
1107                     }
1108                     break;
1109                 }
1110             }
1111
1112             if( p_rtsp->b_playing && p_rtsp->b_paused )
1113             {
1114                 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session, 0, NULL );
1115                 p_rtsp->b_paused = VLC_FALSE;
1116                 break;
1117             }
1118             else if( p_rtsp->b_playing ) break;
1119
1120             if( httpd_ClientIP( cl, ip ) == NULL ) break;
1121
1122             p_rtsp->b_playing = VLC_TRUE;
1123
1124             /* FIXME for != 1 video and 1 audio */
1125             for( i = 0; i < p_rtsp->i_es; i++ )
1126             {
1127                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1128                     i_port_audio = p_rtsp->es[i]->i_port;
1129                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1130                     i_port_video = p_rtsp->es[i]->i_port;
1131             }
1132
1133             if( p_media->psz_mux )
1134             {
1135                 if( p_media->b_raw )
1136                 {
1137                     asprintf( &psz_output, "std{access=udp,dst=%s:%i,mux=%s}",
1138                               ip, i_port, p_media->psz_mux );
1139                 }
1140                 else
1141                 {
1142                     asprintf( &psz_output, "rtp{dst=%s,port=%i,mux=%s}",
1143                               ip, i_port_video, p_media->psz_mux );
1144                 }
1145             }
1146             else
1147             {
1148                 asprintf( &psz_output, "rtp{dst=%s,port-video=%i,"
1149                           "port-audio=%i}", ip, i_port_video, i_port_audio );
1150             }
1151
1152             CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session, 0, psz_output );
1153             free( psz_output );
1154             break;
1155         }
1156
1157         case HTTPD_MSG_DESCRIBE:
1158         {
1159             char *psz_sdp =
1160                 SDPGenerate( p_media, cl );
1161
1162             if( psz_sdp != NULL )
1163             {
1164                 answer->i_status = 200;
1165                 answer->psz_status = strdup( "OK" );
1166                 httpd_MsgAdd( answer, "Content-type",  "%s", "application/sdp" );
1167
1168                 answer->p_body = (uint8_t *)psz_sdp;
1169                 answer->i_body = strlen( psz_sdp );
1170             }
1171             else
1172             {
1173                 answer->i_status = 500;
1174                 answer->psz_status = strdup( "Internal server error" );
1175                 answer->p_body = NULL;
1176                 answer->i_body = 0;
1177             }
1178             break;
1179         }
1180
1181         case HTTPD_MSG_PAUSE:
1182             psz_session = httpd_MsgGet( query, "Session" );
1183             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1184
1185             p_rtsp = RtspClientGet( p_media, psz_session );
1186             if( !p_rtsp ) break;
1187
1188             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session, 0, NULL );
1189             p_rtsp->b_paused = VLC_TRUE;
1190
1191             answer->i_status = 200;
1192             answer->psz_status = strdup( "OK" );
1193             answer->i_body = 0;
1194             answer->p_body = NULL;
1195             break;
1196
1197         case HTTPD_MSG_TEARDOWN:
1198             /* for now only multicast so easy again */
1199             answer->i_status = 200;
1200             answer->psz_status = strdup( "OK" );
1201             answer->i_body = 0;
1202             answer->p_body = NULL;
1203
1204             psz_session = httpd_MsgGet( query, "Session" );
1205             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1206
1207             p_rtsp = RtspClientGet( p_media, psz_session );
1208             if( !p_rtsp ) break;
1209
1210             CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session, 0, NULL );
1211             RtspClientDel( p_media, p_rtsp );
1212             break;
1213
1214         case HTTPD_MSG_GETPARAMETER:
1215             answer->i_status = 200;
1216             answer->psz_status = strdup( "OK" );
1217             answer->i_body = 0;
1218             answer->p_body = NULL;
1219             break;
1220
1221         default:
1222             return VLC_EGENERIC;
1223     }
1224
1225     httpd_MsgAdd( answer, "Server", "VLC Server" );
1226     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1227     psz_cseq = httpd_MsgGet( query, "Cseq" );
1228     psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1229     httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1230     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1231
1232     if( psz_session )
1233     {
1234          if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1235              httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1236                p_media->p_vod->p_sys->i_session_timeout );
1237          else
1238               httpd_MsgAdd( answer, "Session", "%s", psz_session );
1239     }
1240
1241     return VLC_SUCCESS;
1242 }
1243
1244 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1245                            httpd_message_t *answer, httpd_message_t *query )
1246 {
1247     media_es_t *p_es = (media_es_t*)p_args;
1248     vod_media_t *p_media = p_es->p_media;
1249     vod_t *p_vod = p_media->p_vod;
1250     rtsp_client_t *p_rtsp = NULL;
1251     const char *psz_transport = NULL;
1252     const char *psz_playnow = NULL; /* support option: x-playNow */
1253     const char *psz_session = NULL;
1254     const char *psz_position = NULL;
1255     const char *psz_cseq = NULL;
1256     int i_cseq = 0;
1257     int i;
1258
1259     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1260
1261     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1262
1263     answer->i_proto   = HTTPD_PROTO_RTSP;
1264     answer->i_version = query->i_version;
1265     answer->i_type    = HTTPD_MSG_ANSWER;
1266     answer->i_body    = 0;
1267     answer->p_body      = NULL;
1268
1269     switch( query->i_type )
1270     {
1271         case HTTPD_MSG_SETUP:
1272             psz_playnow = httpd_MsgGet( query, "x-playNow" );
1273             psz_transport = httpd_MsgGet( query, "Transport" );
1274
1275             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1276
1277             if( strstr( psz_transport, "unicast" ) &&
1278                 strstr( psz_transport, "client_port=" ) )
1279             {
1280                 rtsp_client_t *p_rtsp = NULL;
1281                 rtsp_client_es_t *p_rtsp_es = NULL;
1282                 char ip[NI_MAXNUMERICHOST];
1283                 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1284                                 strlen("client_port=") );
1285
1286                 if( httpd_ClientIP( cl, ip ) == NULL )
1287                 {
1288                     answer->i_status = 500;
1289                     answer->psz_status = strdup( "Internal server error" );
1290                     answer->i_body = 0;
1291                     answer->p_body = NULL;
1292                     break;
1293                 }
1294
1295                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1296                         ip, i_port );
1297
1298                 psz_session = httpd_MsgGet( query, "Session" );
1299                 if( !psz_session || !*psz_session )
1300                 {
1301                     char *psz_new;
1302                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1303                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1304                     {
1305                         answer->i_status = 503;
1306                         answer->psz_status = strdup( "Too many connections" );
1307                         answer->i_body = 0;
1308                         answer->p_body = NULL;
1309                         break;
1310                     }
1311                     asprintf( &psz_new, "%d", rand() );
1312                     psz_session = psz_new;
1313
1314                     p_rtsp = RtspClientNew( p_media, psz_new );
1315                 }
1316                 else
1317                 {
1318                     p_rtsp = RtspClientGet( p_media, psz_session );
1319                     if( !p_rtsp )
1320                     {
1321                         answer->i_status = 454;
1322                         answer->psz_status = strdup( "Unknown session id" );
1323                         answer->i_body = 0;
1324                         answer->p_body = NULL;
1325                         break;
1326                     }
1327                 }
1328
1329                 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1330                 if( !p_rtsp_es )
1331                 {
1332                     answer->i_status = 500;
1333                     answer->psz_status = strdup( "Internal server error" );
1334                     answer->i_body = 0;
1335                     answer->p_body = NULL;
1336                     break;
1337                 }
1338                 p_rtsp_es->i_port = i_port;
1339                 p_rtsp_es->psz_ip = strdup( ip );
1340                 p_rtsp_es->p_media_es = p_es;
1341                 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1342
1343                 answer->i_status = 200;
1344                 answer->psz_status = strdup( "OK" );
1345                 answer->i_body = 0;
1346                 answer->p_body = NULL;
1347
1348                 if( p_media->b_raw )
1349                 {
1350                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1351                     {
1352                         httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
1353                                       p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1354                     }
1355                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1356                     {
1357                         httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
1358                                       p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1359                     }
1360                 }
1361                 else
1362                 {
1363                     httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
1364                                   p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1365                 }
1366             }
1367             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1368             {
1369                 answer->i_status = 461;
1370                 answer->psz_status = strdup( "Unsupported Transport" );
1371                 answer->i_body = 0;
1372                 answer->p_body = NULL;
1373             }
1374
1375             /* Intentional fall-through on x-playNow option in RTSP request */
1376             if( !psz_playnow )
1377                 break;
1378
1379         case HTTPD_MSG_PLAY:
1380             /* This is kind of a kludge. Should we only support Aggregate
1381              * Operations ? */
1382             psz_session = httpd_MsgGet( query, "Session" );
1383             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1384
1385             p_rtsp = RtspClientGet( p_media, psz_session );
1386
1387             psz_position = httpd_MsgGet( query, "Range" );
1388             if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1389             if( psz_position )
1390             {
1391                 double f_pos;
1392                 char *end;
1393
1394                 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1395
1396                 psz_position += 4;
1397                 /* FIXME: npt= is not necessarily formatted as a float */
1398                 f_pos = us_strtod( psz_position, &end );
1399                 if( end > psz_position )
1400                 {
1401                     f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1402                     CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media, psz_session, f_pos, NULL );
1403                 }
1404             }
1405
1406             if( !psz_playnow )
1407             {
1408                 answer->i_status = 200;
1409                 answer->psz_status = strdup( "OK" );
1410                 answer->i_body = 0;
1411                 answer->p_body = NULL;
1412             }
1413             break;
1414
1415         case HTTPD_MSG_TEARDOWN:
1416             answer->i_status = 200;
1417             answer->psz_status = strdup( "OK" );
1418             answer->i_body = 0;
1419             answer->p_body = NULL;
1420
1421             psz_session = httpd_MsgGet( query, "Session" );
1422             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1423
1424             p_rtsp = RtspClientGet( p_media, psz_session );
1425             if( !p_rtsp ) break;
1426
1427             for( i = 0; i < p_rtsp->i_es; i++ )
1428             {
1429                 if( p_rtsp->es[i]->p_media_es == p_es )
1430                 {
1431                     if( p_rtsp->es[i]->psz_ip ) free( p_rtsp->es[i]->psz_ip );
1432                     TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1433                     break;
1434                 }
1435             }
1436
1437             if( !p_rtsp->i_es )
1438             {
1439                 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session, 0, NULL );
1440                 RtspClientDel( p_media, p_rtsp );
1441             }
1442             break;
1443
1444         case HTTPD_MSG_PAUSE:
1445             /* This is kind of a kludge. Should we only support Aggregate
1446              * Operations ? */
1447             psz_session = httpd_MsgGet( query, "Session" );
1448             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1449
1450             p_rtsp = RtspClientGet( p_media, psz_session );
1451             if( !p_rtsp ) break;
1452
1453             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session, 0, NULL );
1454             p_rtsp->b_paused = VLC_TRUE;
1455
1456             answer->i_status = 200;
1457             answer->psz_status = strdup( "OK" );
1458             answer->i_body = 0;
1459             answer->p_body = NULL;
1460             break;
1461
1462         default:
1463             return VLC_EGENERIC;
1464             break;
1465     }
1466
1467     httpd_MsgAdd( answer, "Server", "VLC Server" );
1468     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1469     psz_cseq = httpd_MsgGet( query, "Cseq" );
1470     if (psz_cseq)
1471         i_cseq = atoi( psz_cseq );
1472     else
1473         i_cseq = 0;
1474     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1475     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1476
1477     if( psz_session )
1478         httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1479
1480     return VLC_SUCCESS;
1481 }
1482
1483 /*****************************************************************************
1484  * SDPGenerate: TODO
1485  * FIXME: need to be moved to a common place ?
1486  *****************************************************************************/
1487 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1488 {
1489     int i, i_size;
1490     char *p, *psz_sdp, ip[NI_MAXNUMERICHOST], ipv;
1491     const char *psz_control;
1492
1493     if( httpd_ServerIP( cl, ip ) == NULL )
1494         return NULL;
1495
1496     p = strchr( ip, '%' );
1497     if( p != NULL )
1498         *p = '\0'; /* remove scope if present */
1499
1500     ipv = ( strchr( ip, ':' ) != NULL ) ? '6' : '4';
1501
1502     /* Calculate size */
1503     i_size = sizeof( "v=0\r\n" ) +
1504         sizeof( "o=- * * IN IP4 \r\n" ) + 10 + NI_MAXNUMERICHOST +
1505         sizeof( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
1506         sizeof( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
1507         sizeof( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
1508         sizeof( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
1509         sizeof( "c=IN IP4 0.0.0.0\r\n" ) + 20 + 10 +
1510         sizeof( "t=0 0\r\n" ) + /* FIXME */
1511         sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
1512         sizeof( "a=range:npt=0-1000000000.000\r\n" );
1513
1514     psz_control = (ipv == '6') ? p_media->psz_rtsp_control_v6
1515                                : p_media->psz_rtsp_control_v4;
1516     for( i = 0; i < p_media->i_es; i++ )
1517     {
1518         media_es_t *p_es = p_media->es[i];
1519
1520         i_size += sizeof( "m=**d*o * RTP/AVP *\r\n" ) + 19;
1521         if( p_es->psz_rtpmap )
1522         {
1523             i_size += sizeof( "a=rtpmap:* *\r\n" ) +
1524                 strlen( p_es->psz_rtpmap ) + 9;
1525         }
1526         if( p_es->psz_fmtp )
1527         {
1528             i_size += sizeof( "a=fmtp:* *\r\n" ) +
1529                 strlen( p_es->psz_fmtp ) + 9;
1530         }
1531     }
1532     i_size += (strlen( psz_control ) + strlen( ip ) + 9) * p_media->i_es;
1533
1534     p = psz_sdp = malloc( i_size );
1535     p += sprintf( p, "v=0\r\n" );
1536     p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
1537                   p_media->i_sdp_id, p_media->i_sdp_version, ipv, ip );
1538     if( *p_media->psz_session_name )
1539         p += sprintf( p, "s=%s\r\n", p_media->psz_session_name );
1540     if( *p_media->psz_session_description )
1541         p += sprintf( p, "i=%s\r\n", p_media->psz_session_description );
1542     if( *p_media->psz_session_url )
1543         p += sprintf( p, "u=%s\r\n", p_media->psz_session_url );
1544     if( *p_media->psz_session_email )
1545         p += sprintf( p, "e=%s\r\n", p_media->psz_session_email );
1546
1547     p += sprintf( p, "c=IN IP%c %s\r\n", ipv, ipv == '6' ? "::" : "0.0.0.0" );
1548     p += sprintf( p, "t=0 0\r\n" ); /* FIXME */
1549     p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
1550
1551     if( p_media->i_length > 0 )
1552     {
1553         lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1554         p += sprintf( p, "a=range:npt=0-%lld.%03u\r\n", d.quot,
1555                       (unsigned)d.rem );
1556     }
1557
1558     for( i = 0; i < p_media->i_es; i++ )
1559     {
1560         media_es_t *p_es = p_media->es[i];
1561
1562         if( p_es->fmt.i_cat == AUDIO_ES )
1563         {
1564             p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
1565                           p_es->i_port, p_es->i_payload_type );
1566         }
1567         else if( p_es->fmt.i_cat == VIDEO_ES )
1568         {
1569             p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
1570                           p_es->i_port, p_es->i_payload_type );
1571         }
1572         else
1573         {
1574             continue;
1575         }
1576
1577         if( p_es->psz_rtpmap )
1578         {
1579             p += sprintf( p, "a=rtpmap:%d %s\r\n", p_es->i_payload_type,
1580                           p_es->psz_rtpmap );
1581         }
1582         if( p_es->psz_fmtp )
1583         {
1584             p += sprintf( p, "a=fmtp:%d %s\r\n", p_es->i_payload_type,
1585                           p_es->psz_fmtp );
1586         }
1587
1588         p += sprintf( p, psz_control, ip, i );
1589     }
1590
1591     return psz_sdp;
1592 }