Propagate rgb mask/shift values on render format/heap too.
[vlc.git] / 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 #include <errno.h>
47
48 /*****************************************************************************
49  * Module descriptor
50  *****************************************************************************/
51 static int  Open ( vlc_object_t * );
52 static void Close( vlc_object_t * );
53
54 #define HOST_TEXT N_( "RTSP host address" )
55 #define HOST_LONGTEXT N_( \
56     "This defines the address, port and path the RTSP VOD server will listen " \
57     "on.\nSyntax is address:port/path. The default is to listen on all "\
58     "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
59     "only on the local interface, use \"localhost\" as address." )
60
61 #define THROTLE_TEXT N_( "Maximum number of connections" )
62 #define THROTLE_LONGTEXT N_( "This limits the maximum number of clients " \
63     "that can connect to the RTSP VOD. 0 means no limit."  )
64
65 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
66
67 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
68     "session string" )
69 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
70     "to the RTSP session ID string. Setting it to a negative number removes " \
71     "the timeout option entirely. This is needed by some IPTV STBs (such as " \
72     "those made by HansunTech) which get confused by it. The default is 5." )
73
74 vlc_module_begin();
75     set_shortname( N_("RTSP VoD" ) );
76     set_description( N_("RTSP VoD server") );
77     set_category( CAT_SOUT );
78     set_subcategory( SUBCAT_SOUT_VOD );
79     set_capability( "vod server", 1 );
80     set_callbacks( Open, Close );
81     add_shortcut( "rtsp" );
82     add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, true );
83     add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT,
84                 RAWMUX_TEXT, true );
85     add_integer( "rtsp-throttle-users", 0, NULL, THROTLE_TEXT,
86                                            THROTLE_LONGTEXT, true );
87     add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
88                  SESSION_TIMEOUT_LONGTEXT, true );
89 vlc_module_end();
90
91 /*****************************************************************************
92  * Exported prototypes
93  *****************************************************************************/
94
95 typedef struct media_es_t media_es_t;
96
97 typedef struct
98 {
99     media_es_t *p_media_es;
100     char *psz_ip;
101     int i_port;
102
103 } rtsp_client_es_t;
104
105 typedef struct
106 {
107     char *psz_session;
108     int64_t i_last; /* for timeout */
109
110     bool b_playing; /* is it in "play" state */
111     bool b_paused; /* is it in "pause" state */
112
113     int i_es;
114     rtsp_client_es_t **es;
115
116 } rtsp_client_t;
117
118 struct media_es_t
119 {
120     /* VoD server */
121     vod_t *p_vod;
122
123     /* RTSP server */
124     httpd_url_t *p_rtsp_url;
125
126     vod_media_t *p_media;
127
128     es_format_t fmt;
129     int         i_port;
130     uint8_t     i_payload_type;
131     char        *psz_rtpmap;
132     char        *psz_fmtp;
133
134 };
135
136 struct vod_media_t
137 {
138     int id;
139
140     /* VoD server */
141     vod_t *p_vod;
142
143     /* RTSP server */
144     httpd_url_t  *p_rtsp_url;
145     char         *psz_rtsp_control_v4;
146     char         *psz_rtsp_control_v6;
147     char         *psz_rtsp_path;
148
149     int  i_port;
150     int  i_port_audio;
151     int  i_port_video;
152     int  i_ttl;
153     int  i_payload_type;
154
155     int64_t i_sdp_id;
156     int     i_sdp_version;
157
158     bool b_multicast;
159
160     vlc_mutex_t lock;
161
162     /* ES list */
163     int        i_es;
164     media_es_t **es;
165     char       *psz_mux;
166     bool  b_raw;
167
168     /* RTSP client */
169     int           i_rtsp;
170     rtsp_client_t **rtsp;
171
172     /* Infos */
173     char *psz_session_name;
174     char *psz_session_description;
175     char *psz_session_url;
176     char *psz_session_email;
177     mtime_t i_length;
178 };
179
180 struct vod_sys_t
181 {
182     /* RTSP server */
183     httpd_host_t *p_rtsp_host;
184     char *psz_path;
185     int i_port;
186     int i_throttle_users;
187     int i_connections;
188
189     char *psz_raw_mux;
190
191     int i_session_timeout;
192
193     /* List of media */
194     vlc_mutex_t lock_media;
195     int i_media_id;
196     int i_media;
197     vod_media_t **media;
198
199     /* */
200     block_fifo_t *p_fifo_cmd;
201 };
202
203 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
204 typedef enum
205 {
206     RTSP_CMD_TYPE_NONE,  /* Exit requested */
207
208     RTSP_CMD_TYPE_PLAY,
209     RTSP_CMD_TYPE_PAUSE,
210     RTSP_CMD_TYPE_STOP,
211     RTSP_CMD_TYPE_SEEK,
212     RTSP_CMD_TYPE_REWIND,
213     RTSP_CMD_TYPE_FORWARD,
214 } rtsp_cmd_type_t;
215
216 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
217 static void         MediaDel( vod_t *, vod_media_t * );
218 static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
219 static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );
220
221 static void CommandThread( vlc_object_t *p_this );
222 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *, const char *psz_session,
223                          double f_arg, const char *psz_arg );
224
225 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
226 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
227 static void           RtspClientDel( vod_media_t *, rtsp_client_t * );
228
229 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
230                          httpd_message_t *, const httpd_message_t * );
231 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
232                            httpd_message_t *, const httpd_message_t * );
233
234 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
235
236 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
237 {
238     static const char hex[16] = "0123456789abcdef";
239     int i;
240
241     for( i = 0; i < i_data; i++ )
242     {
243         s[2*i+0] = hex[(p_data[i]>>4)&0xf];
244         s[2*i+1] = hex[(p_data[i]   )&0xf];
245     }
246     s[2*i_data] = '\0';
247 }
248
249 /*****************************************************************************
250  * Open: Starts the RTSP server module
251  *****************************************************************************/
252 static int Open( vlc_object_t *p_this )
253 {
254     vod_t *p_vod = (vod_t *)p_this;
255     vod_sys_t *p_sys = 0;
256     char *psz_url = 0;
257     vlc_url_t url;
258
259     psz_url = config_GetPsz( p_vod, "rtsp-host" );
260     vlc_UrlParse( &url, psz_url, 0 );
261     free( psz_url );
262
263     if( url.i_port <= 0 ) url.i_port = 554;
264
265     p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
266     if( !p_sys ) goto error;
267     p_sys->p_rtsp_host = 0;
268
269     p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
270
271     p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
272     msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
273     p_sys->i_connections = 0;
274
275     p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
276
277     p_sys->p_rtsp_host =
278         httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
279     if( !p_sys->p_rtsp_host )
280     {
281         msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
282                  url.psz_host, url.i_port );
283         goto error;
284     }
285
286     p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
287     p_sys->i_port = url.i_port;
288
289     vlc_UrlClean( &url );
290
291     vlc_mutex_init( &p_sys->lock_media );
292
293     TAB_INIT( p_sys->i_media, p_sys->media );
294     p_sys->i_media_id = 0;
295
296     p_vod->pf_media_new = MediaNew;
297     p_vod->pf_media_del = MediaDel;
298     p_vod->pf_media_add_es = MediaAddES;
299     p_vod->pf_media_del_es = MediaDelES;
300
301     p_sys->p_fifo_cmd = block_FifoNew();
302     if( vlc_thread_create( p_vod, "rtsp vod thread", CommandThread,
303                            VLC_THREAD_PRIORITY_LOW, false ) )
304     {
305         msg_Err( p_vod, "cannot spawn rtsp vod thread" );
306         block_FifoRelease( p_sys->p_fifo_cmd );
307         free( p_sys->psz_path );
308         goto error;
309     }
310
311     return VLC_SUCCESS;
312
313 error:
314     if( p_sys )
315     {
316         if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
317         free( p_sys->psz_raw_mux );
318         free( p_sys );
319     }
320     vlc_UrlClean( &url );
321
322     return VLC_EGENERIC;
323 }
324
325 /*****************************************************************************
326  * Close:
327  *****************************************************************************/
328 static void Close( vlc_object_t * p_this )
329 {
330     vod_t *p_vod = (vod_t *)p_this;
331     vod_sys_t *p_sys = p_vod->p_sys;
332
333     /* Stop command thread */
334     vlc_object_kill( p_vod );
335     CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0.0, NULL );
336     vlc_thread_join( p_vod );
337
338     block_FifoRelease( p_sys->p_fifo_cmd );
339
340     httpd_HostDelete( p_sys->p_rtsp_host );
341     var_Destroy( p_this, "rtsp-session-timeout" );
342     var_Destroy( p_this, "rtsp-throttle-users" );
343     var_Destroy( p_this, "rtsp-raw-mux" );
344
345     /* Check VLM is not buggy */
346     if( p_sys->i_media > 0 )
347         msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
348     TAB_CLEAN( p_sys->i_media, p_sys->media );
349
350     vlc_mutex_destroy( &p_sys->lock_media );
351
352     free( p_sys->psz_path );
353     free( p_sys->psz_raw_mux );
354     free( p_sys );
355 }
356
357 /*****************************************************************************
358  * Media handling
359  *****************************************************************************/
360 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
361                               input_item_t *p_item )
362 {
363     vod_sys_t *p_sys = p_vod->p_sys;
364     vod_media_t *p_media = malloc( sizeof(vod_media_t) );
365     int i;
366
367     if( !p_media )
368         return NULL;
369
370     memset( p_media, 0, sizeof(vod_media_t) );
371     p_media->id = p_sys->i_media_id++;
372     TAB_INIT( p_media->i_es, p_media->es );
373     p_media->psz_mux = 0;
374     TAB_INIT( p_media->i_rtsp, p_media->rtsp );
375     p_media->b_raw = false;
376
377     if( asprintf( &p_media->psz_rtsp_path, "%s%s",
378                   p_sys->psz_path, psz_name ) <0 )
379         return NULL;
380     p_media->p_rtsp_url =
381         httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
382                             NULL, NULL );
383
384     if( !p_media->p_rtsp_url )
385     {
386         msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
387         free( p_media->psz_rtsp_path );
388         free( p_media );
389         return NULL;
390     }
391
392     msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
393
394     if( asprintf( &p_media->psz_rtsp_control_v4,
395                "a=control:rtsp://%%s:%d%s/trackID=%%d\r\n",
396                p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
397         return NULL;
398     if( asprintf( &p_media->psz_rtsp_control_v6,
399                "a=control:rtsp://[%%s]:%d%s/trackID=%%d\r\n",
400               p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
401         return NULL;
402
403     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
404                     RtspCallback, (void*)p_media );
405     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
406                     RtspCallback, (void*)p_media );
407     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
408                     RtspCallback, (void*)p_media );
409     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
410                     RtspCallback, (void*)p_media );
411     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
412                     RtspCallback, (void*)p_media );
413     httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
414                     RtspCallback, (void*)p_media );
415
416     p_media->p_vod = p_vod;
417
418     vlc_mutex_lock( &p_sys->lock_media );
419     TAB_APPEND( p_sys->i_media, p_sys->media, p_media );
420     vlc_mutex_unlock( &p_sys->lock_media );
421
422     vlc_mutex_init( &p_media->lock );
423     p_media->psz_session_name = strdup("");
424     p_media->psz_session_description = strdup("");
425     p_media->psz_session_url = strdup("");
426     p_media->psz_session_email = strdup("");
427
428     p_media->i_port_audio = 1234;
429     p_media->i_port_video = 1236;
430     p_media->i_port       = 1238;
431     p_media->i_payload_type = 96;
432
433     p_media->i_sdp_id = mdate();
434     p_media->i_sdp_version = 1;
435     p_media->i_length = input_item_GetDuration( p_item );
436
437     vlc_mutex_lock( &p_item->lock );
438     msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
439     for( i = 0; i < p_item->i_es; i++ )
440     {
441         MediaAddES( p_vod, p_media, p_item->es[i] );
442     }
443     vlc_mutex_unlock( &p_item->lock );
444
445     return p_media;
446 }
447
448 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
449 {
450     vod_sys_t *p_sys = p_vod->p_sys;
451
452     msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
453
454     vlc_mutex_lock( &p_sys->lock_media );
455     TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
456     vlc_mutex_unlock( &p_sys->lock_media );
457
458     while( p_media->i_rtsp > 0 )
459         RtspClientDel( p_media, p_media->rtsp[0] );
460     TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
461
462     httpd_UrlDelete( p_media->p_rtsp_url );
463     free( p_media->psz_rtsp_path );
464     free( p_media->psz_rtsp_control_v6 );
465     free( p_media->psz_rtsp_control_v4 );
466
467     while( p_media->i_es )
468         MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
469     TAB_CLEAN( p_media->i_es, p_media->es );
470
471     vlc_mutex_destroy( &p_media->lock );
472
473     free( p_media->psz_session_name );
474     free( p_media->psz_session_description );
475     free( p_media->psz_session_url );
476     free( p_media->psz_session_email );
477     free( p_media->psz_mux );
478     free( p_media );
479 }
480
481 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
482 {
483     media_es_t *p_es = malloc( sizeof(media_es_t) );
484     char *psz_urlc;
485
486     if( !p_es ) return VLC_ENOMEM;
487     memset( p_es, 0, sizeof(media_es_t) );
488
489     free( p_media->psz_mux );
490     p_media->psz_mux = NULL;
491
492     /* TODO: update SDP, etc... */
493     if( asprintf( &psz_urlc, "%s/trackID=%d",
494               p_media->psz_rtsp_path, p_media->i_es ) < 0 )
495         return VLC_ENOMEM;
496     msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
497
498     switch( p_fmt->i_codec )
499     {
500         case VLC_FOURCC( 's', '1', '6', 'b' ):
501             if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
502             {
503                 p_es->i_payload_type = 11;
504             }
505             else if( p_fmt->audio.i_channels == 2 &&
506                      p_fmt->audio.i_rate == 44100 )
507             {
508                 p_es->i_payload_type = 10;
509             }
510             else
511             {
512                 p_es->i_payload_type = p_media->i_payload_type++;
513             }
514             p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
515             sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
516                     p_fmt->audio.i_channels );
517             break;
518         case VLC_FOURCC( 'u', '8', ' ', ' ' ):
519             p_es->i_payload_type = p_media->i_payload_type++;
520             p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
521             sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
522                     p_fmt->audio.i_channels );
523             break;
524         case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
525             p_es->i_payload_type = 14;
526             p_es->psz_rtpmap = strdup( "MPA/90000" );
527             break;
528         case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
529             p_es->i_payload_type = 32;
530             p_es->psz_rtpmap = strdup( "MPV/90000" );
531             break;
532         case VLC_FOURCC( 'a', '5', '2', ' ' ):
533             p_es->i_payload_type = p_media->i_payload_type++;
534             p_es->psz_rtpmap = strdup( "ac3/90000" );
535             break;
536         case VLC_FOURCC( 'H', '2', '6', '3' ):
537             p_es->i_payload_type = p_media->i_payload_type++;
538             p_es->psz_rtpmap = strdup( "H263-1998/90000" );
539             break;
540         case VLC_FOURCC( 'h', '2', '6', '4' ):
541             p_es->i_payload_type = p_media->i_payload_type++;
542             p_es->psz_rtpmap = strdup( "H264/90000" );
543             p_es->psz_fmtp = NULL;
544             /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
545             if( p_fmt->i_extra > 0 )
546             {
547                 uint8_t *p_buffer = p_fmt->p_extra;
548                 int     i_buffer = p_fmt->i_extra;
549                 char    *p_64_sps = NULL;
550                 char    *p_64_pps = NULL;
551                 char    hexa[6+1];
552
553                 while( i_buffer > 4 &&
554                        p_buffer[0] == 0 && p_buffer[1] == 0 &&
555                        p_buffer[2] == 0 && p_buffer[3] == 1 )
556                 {
557                     const int i_nal_type = p_buffer[4]&0x1f;
558                     int i_offset;
559                     int i_size      = 0;
560
561                     i_size = i_buffer;
562                     for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
563                     {
564                         if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
565                         {
566                             /* we found another startcode */
567                             i_size = i_offset;
568                             break;
569                         }
570                     }
571                     if( i_nal_type == 7 )
572                     {
573                         p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
574                         sprintf_hexa( hexa, &p_buffer[5], 3 );
575                     }
576                     else if( i_nal_type == 8 )
577                     {
578                         p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
579                     }
580                     i_buffer -= i_size;
581                     p_buffer += i_size;
582                 }
583                 /* */
584                 if( p_64_sps && p_64_pps )
585                     if( asprintf( &p_es->psz_fmtp,
586                                   "packetization-mode=1;profile-level-id=%s;"
587                                   "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
588                                   p_64_pps ) < 0 )
589                         return VLC_ENOMEM;
590                 free( p_64_sps );
591                 free( p_64_pps );
592             }
593             if( !p_es->psz_fmtp )
594                 p_es->psz_fmtp = strdup( "packetization-mode=1" );
595             break;
596         case VLC_FOURCC( 'm', 'p', '4', 'v' ):
597             p_es->i_payload_type = p_media->i_payload_type++;
598             p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
599             if( p_fmt->i_extra > 0 )
600             {
601                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
602                 p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
603                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
604                 sprintf( p_es->psz_fmtp,
605                         "profile-level-id=3; config=%s;", p_hexa );
606                 free( p_hexa );
607             }
608             break;
609         case VLC_FOURCC( 'm', 'p', '4', 'a' ):
610             p_es->i_payload_type = p_media->i_payload_type++;
611             p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
612             sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
613             if( p_fmt->i_extra > 0 )
614             {
615                 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
616                 p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
617                 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
618                 sprintf( p_es->psz_fmtp,
619                         "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
620                         "config=%s; SizeLength=13;IndexLength=3; "
621                         "IndexDeltaLength=3; Profile=1;", p_hexa );
622                 free( p_hexa );
623             }
624             break;
625         case VLC_FOURCC( 'm', 'p', '2', 't' ):
626             p_media->psz_mux = strdup("ts");
627             p_es->i_payload_type = 33;
628             p_es->psz_rtpmap = strdup( "MP2T/90000" );
629             break;
630         case VLC_FOURCC( 'm', 'p', '2', 'p' ):
631             p_media->psz_mux = strdup("ps");
632             p_es->i_payload_type = p_media->i_payload_type++;
633             p_es->psz_rtpmap = strdup( "MP2P/90000" );
634             break;
635         case VLC_FOURCC( 's', 'a', 'm', 'r' ):
636             p_es->i_payload_type = p_media->i_payload_type++;
637             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
638                                     "AMR/8000/2" : "AMR/8000" );
639             p_es->psz_fmtp = strdup( "octet-align=1" );
640             break;
641         case VLC_FOURCC( 's', 'a', 'w', 'b' ):
642             p_es->i_payload_type = p_media->i_payload_type++;
643             p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
644                                     "AMR-WB/16000/2" : "AMR-WB/16000" );
645             p_es->psz_fmtp = strdup( "octet-align=1" );
646             break;
647
648         default:
649             msg_Err( p_vod, "cannot add this stream (unsupported "
650                     "codec: %4.4s)", (char*)&p_fmt->i_codec );
651             free( p_es );
652             return VLC_EGENERIC;
653     }
654
655     p_es->p_rtsp_url =
656         httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
657                             NULL );
658
659     if( !p_es->p_rtsp_url )
660     {
661         msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
662         free( psz_urlc );
663         free( p_es );
664         return VLC_EGENERIC;
665     }
666     free( psz_urlc );
667
668     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
669                     RtspCallbackES, (void*)p_es );
670     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
671                     RtspCallbackES, (void*)p_es );
672     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
673                     RtspCallbackES, (void*)p_es );
674     httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
675                     RtspCallbackES, (void*)p_es );
676
677     es_format_Copy( &p_es->fmt, p_fmt );
678     p_es->p_vod = p_vod;
679     p_es->p_media = p_media;
680
681 #if 0
682     /* Choose the port */
683     if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
684     {
685         p_es->i_port = p_media->i_port_audio;
686         p_media->i_port_audio = 0;
687     }
688     else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
689     {
690         p_es->i_port = p_media->i_port_video;
691         p_media->i_port_video = 0;
692     }
693     while( !p_es->i_port )
694     {
695         if( p_media->i_port != p_media->i_port_audio &&
696             p_media->i_port != p_media->i_port_video )
697         {
698             p_es->i_port = p_media->i_port;
699             p_media->i_port += 2;
700             break;
701         }
702         p_media->i_port += 2;
703     }
704 #else
705
706     p_es->i_port = 0;
707 #endif
708
709     vlc_mutex_lock( &p_media->lock );
710     TAB_APPEND( p_media->i_es, p_media->es, p_es );
711     vlc_mutex_unlock( &p_media->lock );
712
713     p_media->i_sdp_version++;
714
715     return VLC_SUCCESS;
716 }
717
718 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
719 {
720     media_es_t *p_es = NULL;
721     int i;
722
723     /* Find the ES */
724     for( i = 0; i < p_media->i_es; i++ )
725     {
726         if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
727             p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
728             p_media->es[i]->fmt.i_id == p_fmt->i_id )
729         {
730             p_es = p_media->es[i];
731         }
732     }
733     if( !p_es ) return;
734
735     msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );
736
737     vlc_mutex_lock( &p_media->lock );
738     TAB_REMOVE( p_media->i_es, p_media->es, p_es );
739     vlc_mutex_unlock( &p_media->lock );
740
741     free( p_es->psz_rtpmap );
742     free( p_es->psz_fmtp );
743     p_media->i_sdp_version++;
744
745     if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
746     es_format_Clean( &p_es->fmt );
747     free( p_es );
748 }
749
750 /* */
751 typedef struct
752 {
753     int i_type;
754     int i_media_id;
755     //vod_media_t *p_media;
756     char *psz_session;
757     char *psz_arg;
758     double f_arg;
759 } rtsp_cmd_t;
760
761 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session,
762                          double f_arg, const char *psz_arg )
763 {
764     rtsp_cmd_t cmd;
765     block_t *p_cmd;
766
767     memset( &cmd, 0, sizeof(cmd) );
768     cmd.i_type = i_type;
769     if( p_media )
770         cmd.i_media_id = p_media->id;
771     if( psz_session )
772         cmd.psz_session = strdup(psz_session);
773     cmd.f_arg = f_arg;
774     if( psz_arg )
775         cmd.psz_arg = strdup(psz_arg);
776
777     p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
778     memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
779
780     block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
781 }
782
783 static void CommandThread( vlc_object_t *p_this )
784 {
785     vod_t *p_vod = (vod_t*)p_this;
786     vod_sys_t *p_sys = p_vod->p_sys;
787
788     while( !p_vod->b_die )
789     {
790         block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
791         rtsp_cmd_t cmd;
792         vod_media_t *p_media = NULL;
793         int i;
794
795         if( !p_block_cmd )
796             break;
797
798         memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
799         block_Release( p_block_cmd );
800
801         if( cmd.i_type == RTSP_CMD_TYPE_NONE )
802             break;
803
804         /* */
805         vlc_mutex_lock( &p_sys->lock_media );
806         for( i = 0; i < p_sys->i_media; i++ )
807         {
808             if( p_sys->media[i]->id == cmd.i_media_id )
809                 break;
810         }
811         if( i >= p_sys->i_media )
812             goto next;
813         p_media = p_sys->media[i];
814
815         switch( cmd.i_type )
816         {
817         case RTSP_CMD_TYPE_PLAY:
818             vod_MediaControl( p_vod, p_media, cmd.psz_session,
819                               VOD_MEDIA_PLAY, cmd.psz_arg );
820             break;
821         case RTSP_CMD_TYPE_PAUSE:
822             vod_MediaControl( p_vod, p_media, cmd.psz_session,
823                               VOD_MEDIA_PAUSE );
824             break;
825
826         case RTSP_CMD_TYPE_STOP:
827             vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
828             break;
829
830         case RTSP_CMD_TYPE_SEEK:
831             vod_MediaControl( p_vod, p_media, cmd.psz_session,
832                               VOD_MEDIA_SEEK, cmd.f_arg );
833             break;
834
835         case RTSP_CMD_TYPE_REWIND:
836             vod_MediaControl( p_vod, p_media, cmd.psz_session,
837                               VOD_MEDIA_REWIND, cmd.f_arg );
838             break;
839
840         case RTSP_CMD_TYPE_FORWARD:
841             vod_MediaControl( p_vod, p_media, cmd.psz_session,
842                               VOD_MEDIA_FORWARD, cmd.f_arg );
843             break;
844
845         default:
846             break;
847         }
848
849     next:
850         vlc_mutex_unlock( &p_sys->lock_media );
851         free( cmd.psz_session );
852         free( cmd.psz_arg );
853     }
854 }
855
856 /****************************************************************************
857  * RTSP server implementation
858  ****************************************************************************/
859 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
860 {
861     rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
862
863     if( !p_rtsp ) return NULL;
864     memset( p_rtsp, 0, sizeof(rtsp_client_t) );
865     p_rtsp->es = 0;
866
867     p_rtsp->psz_session = psz_session;
868     TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
869
870     p_media->p_vod->p_sys->i_connections++;
871     msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
872              psz_session, p_media->p_vod->p_sys->i_throttle_users );
873
874     return p_rtsp;
875 }
876
877 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
878 {
879     int i;
880
881     for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
882     {
883         if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
884             return p_media->rtsp[i];
885     }
886
887     return NULL;
888 }
889
890 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
891 {
892     p_media->p_vod->p_sys->i_connections--;
893     msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
894              p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
895
896     while( p_rtsp->i_es-- )
897     {
898         free( p_rtsp->es[p_rtsp->i_es]->psz_ip );
899         free( p_rtsp->es[p_rtsp->i_es] );
900         if( !p_rtsp->i_es ) free( p_rtsp->es );
901     }
902
903     TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
904
905     free( p_rtsp->psz_session );
906     free( p_rtsp );
907 }
908
909 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
910                          httpd_message_t *answer, const httpd_message_t *query )
911 {
912     vod_media_t *p_media = (vod_media_t*)p_args;
913     vod_t *p_vod = p_media->p_vod;
914     const char *psz_transport = NULL;
915     const char *psz_playnow = NULL; /* support option: x-playNow */
916     const char *psz_session = NULL;
917     const char *psz_cseq = NULL;
918     rtsp_client_t *p_rtsp;
919     int i_port = 0;
920     int i_cseq = 0;
921
922     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
923
924     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
925
926     answer->i_proto   = HTTPD_PROTO_RTSP;
927     answer->i_version = query->i_version;
928     answer->i_type    = HTTPD_MSG_ANSWER;
929     answer->i_body    = 0;
930     answer->p_body    = NULL;
931
932     switch( query->i_type )
933     {
934         case HTTPD_MSG_SETUP:
935         {
936             psz_playnow = httpd_MsgGet( query, "x-playNow" );
937             psz_transport = httpd_MsgGet( query, "Transport" );
938             if( psz_transport == NULL )
939             {
940                 answer->i_status = 400;
941                 break;
942             }
943             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
944
945             if( strstr( psz_transport, "unicast" ) &&
946                 strstr( psz_transport, "client_port=" ) )
947             {
948                 rtsp_client_t *p_rtsp = NULL;
949                 char ip[NI_MAXNUMERICHOST];
950                 i_port = atoi( strstr( psz_transport, "client_port=" ) +
951                                 strlen("client_port=") );
952
953                 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
954                     strstr( psz_transport, "RAW/RAW/UDP" ) )
955                 {
956                     free( p_media->psz_mux );
957                     p_media->psz_mux = NULL;
958                     p_media->psz_mux = strdup( p_vod->p_sys->psz_raw_mux );
959                     p_media->b_raw = true;
960                 }
961
962                 if( httpd_ClientIP( cl, ip ) == NULL )
963                 {
964                     answer->i_status = 500;
965                     answer->i_body = 0;
966                     answer->p_body = NULL;
967                     break;
968                 }
969
970                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
971                          ip, i_port );
972
973                 psz_session = httpd_MsgGet( query, "Session" );
974                 if( !psz_session || !*psz_session )
975                 {
976                     char *psz_new;
977                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
978                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
979                     {
980                         answer->i_status = 503;
981                         answer->i_body = 0;
982                         answer->p_body = NULL;
983                         break;
984                     }
985                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
986                         return VLC_ENOMEM;
987                     psz_session = psz_new;
988
989                     p_rtsp = RtspClientNew( p_media, psz_new );
990                     if( !p_rtsp )
991                     {
992                         answer->i_status = 454;
993                         answer->i_body = 0;
994                         answer->p_body = NULL;
995                         break;
996                     }
997                 }
998                 else
999                 {
1000                     p_rtsp = RtspClientGet( p_media, psz_session );
1001                     if( !p_rtsp )
1002                     {
1003                         answer->i_status = 454;
1004                         answer->i_body = 0;
1005                         answer->p_body = NULL;
1006                         break;
1007                     }
1008                 }
1009
1010                 answer->i_status = 200;
1011                 answer->i_body = 0;
1012                 answer->p_body = NULL;
1013
1014                 if( p_media->b_raw )
1015                 {
1016                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1017                     {
1018                         httpd_MsgAdd( answer, "Transport",
1019                                       "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1020                                       i_port, i_port + 1 );
1021                     }
1022                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1023                     {
1024                         httpd_MsgAdd( answer, "Transport",
1025                                       "RAW/RAW/UDP;unicast;client_port=%d-%d",
1026                                       i_port, i_port + 1 );
1027                     }
1028                 }
1029                 else
1030                     httpd_MsgAdd( answer, "Transport",
1031                                   "RTP/AVP/UDP;unicast;client_port=%d-%d",
1032                                   i_port, i_port + 1 );
1033             }
1034             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1035             {
1036                 answer->i_status = 461;
1037                 answer->i_body = 0;
1038                 answer->p_body = NULL;
1039             }
1040
1041             /* Intentional fall-through on x-playNow option in RTSP request */
1042             if( !psz_playnow )
1043                 break;
1044         }
1045
1046         case HTTPD_MSG_PLAY:
1047         {
1048             char *psz_output, ip[NI_MAXNUMERICHOST];
1049             int i, i_port_audio = 0, i_port_video = 0;
1050
1051             /* for now only multicast so easy */
1052             if( !psz_playnow )
1053             {
1054                 answer->i_status = 200;
1055                 answer->i_body = 0;
1056                 answer->p_body = NULL;
1057             }
1058
1059             if( !psz_session )
1060                 psz_session = httpd_MsgGet( query, "Session" );
1061             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1062
1063             p_rtsp = RtspClientGet( p_media, psz_session );
1064             if( !p_rtsp )
1065             {
1066                 answer->i_status = 500;
1067                 answer->i_body = 0;
1068                 answer->p_body = NULL;
1069                 break;
1070             }
1071
1072             if( p_rtsp->b_playing )
1073             {
1074                 const char *psz_position = httpd_MsgGet( query, "Range" );
1075                 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1076                 if( psz_position )
1077                     psz_position = strstr( psz_position, "npt=" );
1078                 if( psz_position && !psz_scale )
1079                 {
1080                     double f_pos;
1081                     char *end;
1082
1083                     msg_Dbg( p_vod, "seeking request: %s", psz_position );
1084                     psz_position += 4;
1085                     /* FIXME: npt= is not necessarily formatted as a float */
1086                     f_pos = us_strtod( psz_position, &end );
1087                     if( end > psz_position )
1088                     {
1089                         f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1090                         CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1091                                      psz_session, f_pos, NULL );
1092                     }
1093                     break;
1094                 }
1095                 if( psz_scale )
1096                 {
1097                     double f_scale = 0.0;
1098                     char *end;
1099
1100                     f_scale = us_strtod( psz_scale, &end );
1101                     if( end > psz_scale )
1102                     {
1103                         f_scale = (f_scale * 30.0);
1104                         if( psz_scale[0] == '-' ) /* rewind */
1105                         {
1106                             msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1107                             CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1108                                          psz_session, f_scale, NULL );
1109                         }
1110                         else if(psz_scale[0] != '1' ) /* fast-forward */
1111                         {
1112                             msg_Dbg( p_vod, "fastforward request: %s",
1113                                      psz_scale );
1114                             CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1115                                          psz_session, f_scale, NULL );
1116                         }
1117
1118                         if( p_rtsp->b_paused == true )
1119                         {
1120                             p_rtsp->b_paused = false;
1121                             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1122                                          psz_session, 0, NULL );
1123                         }
1124                     }
1125                     break;
1126                 }
1127             }
1128
1129             if( p_rtsp->b_playing && p_rtsp->b_paused )
1130             {
1131                 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1132                              psz_session, 0, NULL );
1133                 p_rtsp->b_paused = false;
1134                 break;
1135             }
1136             else if( p_rtsp->b_playing ) break;
1137
1138             if( httpd_ClientIP( cl, ip ) == NULL ) break;
1139
1140             p_rtsp->b_playing = true;
1141
1142             /* FIXME for != 1 video and 1 audio */
1143             for( i = 0; i < p_rtsp->i_es; i++ )
1144             {
1145                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1146                     i_port_audio = p_rtsp->es[i]->i_port;
1147                 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1148                     i_port_video = p_rtsp->es[i]->i_port;
1149             }
1150
1151             if( p_media->psz_mux )
1152             {
1153                 if( p_media->b_raw )
1154                 {
1155                     if( asprintf( &psz_output,
1156                               "std{access=udp,dst=%s:%i,mux=%s}",
1157                               ip, i_port, p_media->psz_mux ) < 0 )
1158                         return VLC_ENOMEM;
1159                 }
1160                 else
1161                 {
1162                     if( asprintf( &psz_output,
1163                               "rtp{dst=%s,port=%i,mux=%s}",
1164                               ip, i_port_video, p_media->psz_mux ) < 0 )
1165                         return VLC_ENOMEM;
1166                 }
1167             }
1168             else
1169             {
1170                 if( asprintf( &psz_output,
1171                               "rtp{dst=%s,port-video=%i,port-audio=%i}",
1172                               ip, i_port_video, i_port_audio ) < 0 )
1173                     return VLC_ENOMEM;
1174             }
1175
1176             CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1177                          0, psz_output );
1178             free( psz_output );
1179             break;
1180         }
1181
1182         case HTTPD_MSG_DESCRIBE:
1183         {
1184             char *psz_sdp =
1185                 SDPGenerate( p_media, cl );
1186
1187             if( psz_sdp != NULL )
1188             {
1189                 answer->i_status = 200;
1190                 httpd_MsgAdd( answer, "Content-type",  "%s",
1191                               "application/sdp" );
1192
1193                 answer->p_body = (uint8_t *)psz_sdp;
1194                 answer->i_body = strlen( psz_sdp );
1195             }
1196             else
1197             {
1198                 answer->i_status = 500;
1199                 answer->p_body = NULL;
1200                 answer->i_body = 0;
1201             }
1202             break;
1203         }
1204
1205         case HTTPD_MSG_PAUSE:
1206             psz_session = httpd_MsgGet( query, "Session" );
1207             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1208
1209             p_rtsp = RtspClientGet( p_media, psz_session );
1210             if( !p_rtsp ) break;
1211
1212             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1213                          0, NULL );
1214             p_rtsp->b_paused = true;
1215
1216             answer->i_status = 200;
1217             answer->i_body = 0;
1218             answer->p_body = NULL;
1219             break;
1220
1221         case HTTPD_MSG_TEARDOWN:
1222             /* for now only multicast so easy again */
1223             answer->i_status = 200;
1224             answer->i_body = 0;
1225             answer->p_body = NULL;
1226
1227             psz_session = httpd_MsgGet( query, "Session" );
1228             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1229
1230             p_rtsp = RtspClientGet( p_media, psz_session );
1231             if( !p_rtsp ) break;
1232
1233             CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1234                          0, NULL );
1235             RtspClientDel( p_media, p_rtsp );
1236             break;
1237
1238         case HTTPD_MSG_GETPARAMETER:
1239             answer->i_status = 200;
1240             answer->i_body = 0;
1241             answer->p_body = NULL;
1242             break;
1243
1244         default:
1245             return VLC_EGENERIC;
1246     }
1247
1248     httpd_MsgAdd( answer, "Server", "VLC Server" );
1249     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1250     psz_cseq = httpd_MsgGet( query, "Cseq" );
1251     psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1252     httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1253     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1254
1255     if( psz_session )
1256     {
1257          if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1258              httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1259                p_media->p_vod->p_sys->i_session_timeout );
1260          else
1261               httpd_MsgAdd( answer, "Session", "%s", psz_session );
1262     }
1263
1264     return VLC_SUCCESS;
1265 }
1266
1267 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1268                            httpd_message_t *answer,
1269                            const httpd_message_t *query )
1270 {
1271     media_es_t *p_es = (media_es_t*)p_args;
1272     vod_media_t *p_media = p_es->p_media;
1273     vod_t *p_vod = p_media->p_vod;
1274     rtsp_client_t *p_rtsp = NULL;
1275     const char *psz_transport = NULL;
1276     const char *psz_playnow = NULL; /* support option: x-playNow */
1277     const char *psz_session = NULL;
1278     const char *psz_position = NULL;
1279     const char *psz_cseq = NULL;
1280     int i_cseq = 0;
1281     int i;
1282
1283     if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1284
1285     msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1286
1287     answer->i_proto   = HTTPD_PROTO_RTSP;
1288     answer->i_version = query->i_version;
1289     answer->i_type    = HTTPD_MSG_ANSWER;
1290     answer->i_body    = 0;
1291     answer->p_body      = NULL;
1292
1293     switch( query->i_type )
1294     {
1295         case HTTPD_MSG_SETUP:
1296             psz_playnow = httpd_MsgGet( query, "x-playNow" );
1297             psz_transport = httpd_MsgGet( query, "Transport" );
1298
1299             msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1300
1301             if( strstr( psz_transport, "unicast" ) &&
1302                 strstr( psz_transport, "client_port=" ) )
1303             {
1304                 rtsp_client_t *p_rtsp = NULL;
1305                 rtsp_client_es_t *p_rtsp_es = NULL;
1306                 char ip[NI_MAXNUMERICHOST];
1307                 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1308                                    strlen("client_port=") );
1309
1310                 if( httpd_ClientIP( cl, ip ) == NULL )
1311                 {
1312                     answer->i_status = 500;
1313                     answer->i_body = 0;
1314                     answer->p_body = NULL;
1315                     break;
1316                 }
1317
1318                 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1319                         ip, i_port );
1320
1321                 psz_session = httpd_MsgGet( query, "Session" );
1322                 if( !psz_session || !*psz_session )
1323                 {
1324                     char *psz_new;
1325                     if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1326                         ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1327                     {
1328                         answer->i_status = 503;
1329                         answer->i_body = 0;
1330                         answer->p_body = NULL;
1331                         break;
1332                     }
1333                     if( asprintf( &psz_new, "%d", rand() ) < 0 )
1334                         return VLC_ENOMEM;
1335                     psz_session = psz_new;
1336
1337                     p_rtsp = RtspClientNew( p_media, psz_new );
1338                 }
1339                 else
1340                 {
1341                     p_rtsp = RtspClientGet( p_media, psz_session );
1342                     if( !p_rtsp )
1343                     {
1344                         answer->i_status = 454;
1345                         answer->i_body = 0;
1346                         answer->p_body = NULL;
1347                         break;
1348                     }
1349                 }
1350
1351                 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1352                 if( !p_rtsp_es )
1353                 {
1354                     answer->i_status = 500;
1355                     answer->i_body = 0;
1356                     answer->p_body = NULL;
1357                     break;
1358                 }
1359                 p_rtsp_es->i_port = i_port;
1360                 p_rtsp_es->psz_ip = strdup( ip );
1361                 p_rtsp_es->p_media_es = p_es;
1362                 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1363
1364                 answer->i_status = 200;
1365                 answer->i_body = 0;
1366                 answer->p_body = NULL;
1367
1368                 if( p_media->b_raw )
1369                 {
1370                     if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1371                     {
1372                         httpd_MsgAdd( answer, "Transport",
1373                                      "MP2T/H2221/UDP;client_port=%d-%d",
1374                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1375                     }
1376                     else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1377                     {
1378                         httpd_MsgAdd( answer, "Transport",
1379                                      "RAW/RAW/UDP;client_port=%d-%d",
1380                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1381                     }
1382                 }
1383                 else
1384                 {
1385                     httpd_MsgAdd( answer, "Transport",
1386                                   "RTP/AVP/UDP;client_port=%d-%d",
1387                                   p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1388                 }
1389             }
1390             else /* TODO  strstr( psz_transport, "interleaved" ) ) */
1391             {
1392                 answer->i_status = 461;
1393                 answer->i_body = 0;
1394                 answer->p_body = NULL;
1395             }
1396
1397             /* Intentional fall-through on x-playNow option in RTSP request */
1398             if( !psz_playnow )
1399                 break;
1400
1401         case HTTPD_MSG_PLAY:
1402             /* This is kind of a kludge. Should we only support Aggregate
1403              * Operations ? */
1404             psz_session = httpd_MsgGet( query, "Session" );
1405             msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1406
1407             p_rtsp = RtspClientGet( p_media, psz_session );
1408
1409             psz_position = httpd_MsgGet( query, "Range" );
1410             if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1411             if( psz_position )
1412             {
1413                 double f_pos;
1414                 char *end;
1415
1416                 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1417
1418                 psz_position += 4;
1419                 /* FIXME: npt= is not necessarily formatted as a float */
1420                 f_pos = us_strtod( psz_position, &end );
1421                 if( end > psz_position )
1422                 {
1423                     f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1424                     CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1425                                  psz_session, f_pos, NULL );
1426                 }
1427             }
1428
1429             if( !psz_playnow )
1430             {
1431                 answer->i_status = 200;
1432                 answer->i_body = 0;
1433                 answer->p_body = NULL;
1434             }
1435             break;
1436
1437         case HTTPD_MSG_TEARDOWN:
1438             answer->i_status = 200;
1439             answer->i_body = 0;
1440             answer->p_body = NULL;
1441
1442             psz_session = httpd_MsgGet( query, "Session" );
1443             msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1444
1445             p_rtsp = RtspClientGet( p_media, psz_session );
1446             if( !p_rtsp ) break;
1447
1448             for( i = 0; i < p_rtsp->i_es; i++ )
1449             {
1450                 if( p_rtsp->es[i]->p_media_es == p_es )
1451                 {
1452                     free( p_rtsp->es[i]->psz_ip );
1453                     TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1454                     break;
1455                 }
1456             }
1457
1458             if( !p_rtsp->i_es )
1459             {
1460                 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1461                              0, NULL );
1462                 RtspClientDel( p_media, p_rtsp );
1463             }
1464             break;
1465
1466         case HTTPD_MSG_PAUSE:
1467             /* This is kind of a kludge. Should we only support Aggregate
1468              * Operations ? */
1469             psz_session = httpd_MsgGet( query, "Session" );
1470             msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1471
1472             p_rtsp = RtspClientGet( p_media, psz_session );
1473             if( !p_rtsp ) break;
1474
1475             CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1476                          0, NULL );
1477             p_rtsp->b_paused = true;
1478
1479             answer->i_status = 200;
1480             answer->i_body = 0;
1481             answer->p_body = NULL;
1482             break;
1483
1484         default:
1485             return VLC_EGENERIC;
1486             break;
1487     }
1488
1489     httpd_MsgAdd( answer, "Server", "VLC Server" );
1490     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1491     psz_cseq = httpd_MsgGet( query, "Cseq" );
1492     if (psz_cseq)
1493         i_cseq = atoi( psz_cseq );
1494     else
1495         i_cseq = 0;
1496     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1497     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1498
1499     if( psz_session )
1500         httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1501
1502     return VLC_SUCCESS;
1503 }
1504
1505 /*****************************************************************************
1506  * SDPGenerate: TODO
1507  * FIXME: need to be moved to a common place ?
1508  *****************************************************************************/
1509 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1510 {
1511     int i, i_size;
1512     char *p, *psz_sdp, ip[NI_MAXNUMERICHOST], ipv;
1513     const char *psz_control;
1514
1515     if( httpd_ServerIP( cl, ip ) == NULL )
1516         return NULL;
1517
1518     p = strchr( ip, '%' );
1519     if( p != NULL )
1520         *p = '\0'; /* remove scope if present */
1521
1522     ipv = ( strchr( ip, ':' ) != NULL ) ? '6' : '4';
1523
1524     /* Calculate size */
1525     i_size = sizeof( "v=0\r\n" ) +
1526         sizeof( "o=- * * IN IP4 \r\n" ) + 10 + NI_MAXNUMERICHOST +
1527         sizeof( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
1528         sizeof( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
1529         sizeof( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
1530         sizeof( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
1531         sizeof( "c=IN IP4 0.0.0.0\r\n" ) + 20 + 10 +
1532         sizeof( "t=0 0\r\n" ) + /* FIXME */
1533         sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
1534         sizeof( "a=range:npt=0-1000000000.000\r\n" );
1535
1536     psz_control = (ipv == '6') ? p_media->psz_rtsp_control_v6
1537                                : p_media->psz_rtsp_control_v4;
1538     for( i = 0; i < p_media->i_es; i++ )
1539     {
1540         media_es_t *p_es = p_media->es[i];
1541
1542         i_size += sizeof( "m=**d*o * RTP/AVP *\r\n" ) + 19;
1543         if( p_es->psz_rtpmap )
1544         {
1545             i_size += sizeof( "a=rtpmap:* *\r\n" ) +
1546                 strlen( p_es->psz_rtpmap ) + 9;
1547         }
1548         if( p_es->psz_fmtp )
1549         {
1550             i_size += sizeof( "a=fmtp:* *\r\n" ) +
1551                 strlen( p_es->psz_fmtp ) + 9;
1552         }
1553     }
1554     i_size += (strlen( psz_control ) + strlen( ip ) + 9) * p_media->i_es;
1555
1556     p = psz_sdp = malloc( i_size );
1557     p += sprintf( p, "v=0\r\n" );
1558     p += sprintf( p, "o=- %"PRId64" %d IN IP%c %s\r\n",
1559                   p_media->i_sdp_id, p_media->i_sdp_version, ipv, ip );
1560     if( *p_media->psz_session_name )
1561         p += sprintf( p, "s=%s\r\n", p_media->psz_session_name );
1562     if( *p_media->psz_session_description )
1563         p += sprintf( p, "i=%s\r\n", p_media->psz_session_description );
1564     if( *p_media->psz_session_url )
1565         p += sprintf( p, "u=%s\r\n", p_media->psz_session_url );
1566     if( *p_media->psz_session_email )
1567         p += sprintf( p, "e=%s\r\n", p_media->psz_session_email );
1568
1569     p += sprintf( p, "c=IN IP%c %s\r\n", ipv, ipv == '6' ? "::" : "0.0.0.0" );
1570     p += sprintf( p, "t=0 0\r\n" ); /* FIXME */
1571     p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
1572
1573     if( p_media->i_length > 0 )
1574     {
1575         lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1576         p += sprintf( p, "a=range:npt=0-%lld.%03u\r\n", d.quot,
1577                       (unsigned)d.rem );
1578     }
1579
1580     for( i = 0; i < p_media->i_es; i++ )
1581     {
1582         media_es_t *p_es = p_media->es[i];
1583
1584         if( p_es->fmt.i_cat == AUDIO_ES )
1585         {
1586             p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
1587                           p_es->i_port, p_es->i_payload_type );
1588         }
1589         else if( p_es->fmt.i_cat == VIDEO_ES )
1590         {
1591             p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
1592                           p_es->i_port, p_es->i_payload_type );
1593         }
1594         else
1595         {
1596             continue;
1597         }
1598
1599         if( p_es->psz_rtpmap )
1600         {
1601             p += sprintf( p, "a=rtpmap:%d %s\r\n", p_es->i_payload_type,
1602                           p_es->psz_rtpmap );
1603         }
1604         if( p_es->psz_fmtp )
1605         {
1606             p += sprintf( p, "a=fmtp:%d %s\r\n", p_es->i_payload_type,
1607                           p_es->psz_fmtp );
1608         }
1609
1610         p += sprintf( p, psz_control, ip, i );
1611     }
1612
1613     return psz_sdp;
1614 }