1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
38 #include <vlc_block.h>
40 #include <vlc_httpd.h>
42 #include <vlc_network.h>
43 #include <vlc_charset.h>
45 /*****************************************************************************
47 *****************************************************************************/
51 #define DST_TEXT N_("Destination")
52 #define DST_LONGTEXT N_( \
53 "This is the output URL that will be used." )
54 #define SDP_TEXT N_("SDP")
55 #define SDP_LONGTEXT N_( \
56 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
57 "session will be made available. You must use an url: http://location to " \
58 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
59 "for the SDP to be announced via SAP." )
60 #define MUX_TEXT N_("Muxer")
61 #define MUX_LONGTEXT N_( \
62 "This allows you to specify the muxer used for the streaming output. " \
63 "Default is to use no muxer (standard RTP stream)." )
65 #define NAME_TEXT N_("Session name")
66 #define NAME_LONGTEXT N_( \
67 "This is the name of the session that will be announced in the SDP " \
68 "(Session Descriptor)." )
69 #define DESC_TEXT N_("Session description")
70 #define DESC_LONGTEXT N_( \
71 "This allows you to give a broader description of the stream, that will " \
72 "be announced in the SDP (Session Descriptor)." )
73 #define URL_TEXT N_("Session URL")
74 #define URL_LONGTEXT N_( \
75 "This allows you to give an URL with more details about the stream " \
76 "(often the website of the streaming organization), that will " \
77 "be announced in the SDP (Session Descriptor)." )
78 #define EMAIL_TEXT N_("Session email")
79 #define EMAIL_LONGTEXT N_( \
80 "This allows you to give a contact mail address for the stream, that will " \
81 "be announced in the SDP (Session Descriptor)." )
82 #define PORT_TEXT N_("Port")
83 #define PORT_LONGTEXT N_( \
84 "This allows you to specify the base port for the RTP streaming." )
85 #define PORT_AUDIO_TEXT N_("Audio port")
86 #define PORT_AUDIO_LONGTEXT N_( \
87 "This allows you to specify the default audio port for the RTP streaming." )
88 #define PORT_VIDEO_TEXT N_("Video port")
89 #define PORT_VIDEO_LONGTEXT N_( \
90 "This allows you to specify the default video port for the RTP streaming." )
92 #define TTL_TEXT N_("Hop limit (TTL)")
93 #define TTL_LONGTEXT N_( \
94 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
95 "the multicast packets sent by the stream output (0 = use operating " \
96 "system built-in default).")
98 #define RFC3016_TEXT N_("MP4A LATM")
99 #define RFC3016_LONGTEXT N_( \
100 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
102 static int Open ( vlc_object_t * );
103 static void Close( vlc_object_t * );
105 #define SOUT_CFG_PREFIX "sout-rtp-"
108 set_shortname( _("RTP"));
109 set_description( _("RTP stream output") );
110 set_capability( "sout stream", 0 );
111 add_shortcut( "rtp" );
112 set_category( CAT_SOUT );
113 set_subcategory( SUBCAT_SOUT_STREAM );
115 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
116 DST_LONGTEXT, VLC_TRUE );
117 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
118 SDP_LONGTEXT, VLC_TRUE );
119 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
120 MUX_LONGTEXT, VLC_TRUE );
122 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
123 NAME_LONGTEXT, VLC_TRUE );
124 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
125 DESC_LONGTEXT, VLC_TRUE );
126 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
127 URL_LONGTEXT, VLC_TRUE );
128 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
129 EMAIL_LONGTEXT, VLC_TRUE );
131 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
132 PORT_LONGTEXT, VLC_TRUE );
133 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
134 PORT_AUDIO_LONGTEXT, VLC_TRUE );
135 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
136 PORT_VIDEO_LONGTEXT, VLC_TRUE );
138 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
139 TTL_LONGTEXT, VLC_TRUE );
141 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
142 RFC3016_LONGTEXT, VLC_FALSE );
144 set_callbacks( Open, Close );
147 /*****************************************************************************
148 * Exported prototypes
149 *****************************************************************************/
150 static const char *ppsz_sout_options[] = {
151 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
152 "description", "url","email", "mp4a-latm", NULL
155 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
156 static int Del ( sout_stream_t *, sout_stream_id_t * );
157 static int Send( sout_stream_t *, sout_stream_id_t *,
160 /* For unicast/interleaved streaming */
164 int64_t i_last; /* for timeout */
166 /* is it in "play" state */
167 vlc_bool_t b_playing;
169 /* output (id-access) */
171 sout_stream_id_t **id;
173 sout_access_out_t **access;
176 struct sout_stream_sys_t
182 vlc_mutex_t lock_sdp;
184 char *psz_session_name;
185 char *psz_session_description;
186 char *psz_session_url;
187 char *psz_session_email;
190 vlc_bool_t b_export_sdp_file;
193 vlc_bool_t b_export_sap;
194 session_descriptor_t *p_session;
196 httpd_host_t *p_httpd_host;
197 httpd_file_t *p_httpd_file;
199 httpd_host_t *p_rtsp_host;
200 httpd_url_t *p_rtsp_url;
201 char *psz_rtsp_control;
205 char *psz_destination;
212 /* when need to use a private one or when using muxer */
215 /* in case we do TS/PS over rtp */
217 sout_access_out_t *p_access;
219 sout_access_out_t *p_grab;
221 uint32_t i_timestamp_start;
228 sout_stream_id_t **es;
232 rtsp_client_t **rtsp;
235 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
238 struct sout_stream_id_t
240 sout_stream_t *p_stream;
242 uint8_t i_payload_type;
244 uint32_t i_timestamp_start;
251 char *psz_destination;
256 /* Packetizer specific fields */
257 pf_rtp_packetizer_t pf_packetize;
260 /* for sending the packets */
261 sout_access_out_t *p_access;
263 vlc_mutex_t lock_rtsp;
265 sout_access_out_t **rtsp_access;
268 sout_input_t *p_input;
270 /* RTSP url control */
271 httpd_url_t *p_rtsp_url;
274 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
276 static void SDPHandleUrl( sout_stream_t *, char * );
278 static int SapSetup( sout_stream_t *p_stream );
279 static int FileSetup( sout_stream_t *p_stream );
280 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
281 static int RtspSetup( sout_stream_t *p_stream, vlc_url_t * );
283 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
284 httpd_message_t *, httpd_message_t * );
285 static int RtspCallbackId( httpd_callback_sys_t *, httpd_client_t *,
286 httpd_message_t *, httpd_message_t * );
289 static rtsp_client_t *RtspClientNew( sout_stream_t *, const char *psz_session );
290 static rtsp_client_t *RtspClientGet( sout_stream_t *, const char *psz_session );
291 static void RtspClientDel( sout_stream_t *, rtsp_client_t * );
293 /*****************************************************************************
295 *****************************************************************************/
296 static int Open( vlc_object_t *p_this )
298 sout_stream_t *p_stream = (sout_stream_t*)p_this;
299 sout_instance_t *p_sout = p_stream->p_sout;
300 sout_stream_sys_t *p_sys = NULL;
301 config_chain_t *p_cfg = NULL;
303 vlc_bool_t b_rtsp = VLC_FALSE;
305 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
306 ppsz_sout_options, p_stream->p_cfg );
308 p_sys = malloc( sizeof( sout_stream_sys_t ) );
310 p_sys->psz_destination = var_GetString( p_stream, SOUT_CFG_PREFIX "dst" );
311 if( *p_sys->psz_destination == '\0' )
313 free( p_sys->psz_destination );
314 p_sys->psz_destination = NULL;
317 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
318 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
319 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
320 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
322 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
323 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
324 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
326 p_sys->psz_sdp_file = NULL;
328 if( p_sys->i_port_audio == p_sys->i_port_video )
330 msg_Err( p_stream, "audio and video port cannot be the same" );
331 p_sys->i_port_audio = 0;
332 p_sys->i_port_video = 0;
335 if( !p_sys->psz_session_name )
337 if( p_sys->psz_destination )
338 p_sys->psz_session_name = strdup( p_sys->psz_destination );
340 p_sys->psz_session_name = strdup( "NONE" );
343 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
345 if( !strcmp( p_cfg->psz_name, "sdp" ) )
347 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
357 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
358 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
360 free( val2.psz_string );
363 if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
367 msg_Err( p_stream, "missing destination and not in rtsp mode" );
371 p_sys->psz_destination = NULL;
373 else if( p_sys->i_port <= 0 )
375 msg_Err( p_stream, "invalid port" );
380 var_Get( p_stream, SOUT_CFG_PREFIX "ttl", &val );
383 /* Normally, we should let the default hop limit up to the core,
384 * but we have to know it to build our SDP properly, which is why
385 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
387 val.i_int = config_GetInt( p_stream, "ttl" );
389 if( val.i_int > 255 ) val.i_int = 255;
390 /* must not exceed 999 once formatted */
393 msg_Warn( p_stream, "illegal TTL %d, the SDP advertised value will be faked", val.i_int );
394 p_sys->i_ttl = val.i_int;
396 var_Get( p_stream, SOUT_CFG_PREFIX "mp4a-latm", &val );
397 p_sys->b_latm = val.b_bool;
399 p_sys->i_payload_type = 96;
404 p_sys->psz_sdp = NULL;
406 p_sys->i_sdp_id = mdate();
407 p_sys->i_sdp_version = 1;
408 p_sys->psz_sdp = NULL;
410 p_sys->b_export_sap = VLC_FALSE;
411 p_sys->b_export_sdp_file = VLC_FALSE;
412 p_sys->p_session = NULL;
414 p_sys->p_httpd_host = NULL;
415 p_sys->p_httpd_file = NULL;
416 p_sys->p_rtsp_host = NULL;
417 p_sys->p_rtsp_url = NULL;
418 p_sys->psz_rtsp_control = NULL;
419 p_sys->psz_rtsp_path = NULL;
421 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
422 vlc_mutex_init( p_stream, &p_sys->lock_es );
424 p_stream->pf_add = Add;
425 p_stream->pf_del = Del;
426 p_stream->pf_send = Send;
428 p_stream->p_sys = p_sys;
430 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
431 if( *val.psz_string )
433 sout_access_out_t *p_grab;
434 const char *psz_rtpmap;
435 char url[NI_MAXHOST + 8], access[17], psz_ttl[5], ipv;
439 msg_Err( p_stream, "muxing is not supported in RTSP mode" );
443 else if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
445 msg_Err( p_stream, "rtp needs a destination when muxing" );
450 /* Check muxer type */
451 if( !strncasecmp( val.psz_string, "ps", 2 ) || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
453 psz_rtpmap = "MP2P/90000";
455 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
457 psz_rtpmap = "MP2T/90000";
458 p_sys->i_payload_type = 33;
462 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
467 /* create the access out */
468 if( p_sys->i_ttl > 0 )
470 sprintf( access, "udp{raw,ttl=%d}", p_sys->i_ttl );
474 sprintf( access, "udp{raw}" );
477 /* IPv6 needs brackets if not already present */
478 snprintf( url, sizeof( url ),
479 ( ( p_sys->psz_destination[0] != '[' )
480 && ( strchr( p_sys->psz_destination, ':' ) != NULL ) )
481 ? "[%s]:%d" : "%s:%d", p_sys->psz_destination,
483 url[sizeof( url ) - 1] = '\0';
484 /* FIXME: we should check that url is a numerical address, otherwise
485 * the SDP will be quite broken (regardless of the IP protocol version)
486 * Also it might be IPv6 with no ':' if it is a DNS name.
488 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
490 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
492 msg_Err( p_stream, "cannot create the access out for %s://%s",
497 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
498 if( p_sys->i_mtu <= 16 + MTU_REDUCE )
500 /* better than nothing */
503 p_sys->i_mtu -= MTU_REDUCE;
505 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
506 p_grab = p_sys->p_grab =
507 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
508 p_grab->p_module = NULL;
509 p_grab->p_sout = p_sout;
510 p_grab->psz_access = strdup( "grab" );
511 p_grab->p_cfg = NULL;
512 p_grab->psz_path = strdup( "" );
513 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
514 p_grab->pf_seek = NULL;
515 p_grab->pf_write = AccessOutGrabberWrite;
518 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
520 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
521 sout_AccessOutDelete( p_sys->p_grab );
522 sout_AccessOutDelete( p_sys->p_access );
527 /* create the SDP for a muxed stream (only once) */
528 /* FIXME http://www.faqs.org/rfcs/rfc4566.html
529 o= - should be local username (no spaces allowed)
530 o= time should be hashed with some other value to garantee uniqueness
531 o= don't use the localhost address. use fully qualified domain name or IP4 address
532 a= source-filter: we need our source address
533 a= x-plgroup: (missing)
534 RTP packets need to get the correct src IP address */
535 if( ipv == 4 && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) )
537 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
538 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
545 asprintf( &p_sys->psz_sdp,
547 /* FIXME: source address not known :( */
548 "o=- "I64Fd" %d IN IP%c %s\r\n"
554 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
555 "a=tool:"PACKAGE_STRING"\r\n"
557 "a=type:broadcast\r\n"
558 "m=video %d RTP/AVP %d\r\n"
559 "a=rtpmap:%d %s\r\n",
560 p_sys->i_sdp_id, p_sys->i_sdp_version,
561 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
562 p_sys->psz_session_name,
563 p_sys->psz_session_description,
564 p_sys->psz_session_url,
565 p_sys->psz_session_email,
566 ipv, p_sys->psz_destination, psz_ttl,
567 p_sys->i_port, p_sys->i_payload_type,
568 p_sys->i_payload_type, psz_rtpmap );
569 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
571 /* create the rtp context */
572 p_sys->ssrc[0] = rand()&0xff;
573 p_sys->ssrc[1] = rand()&0xff;
574 p_sys->ssrc[2] = rand()&0xff;
575 p_sys->ssrc[3] = rand()&0xff;
576 p_sys->i_sequence = rand()&0xffff;
577 p_sys->i_timestamp_start = rand()&0xffffffff;
578 p_sys->packet = NULL;
583 p_sys->p_access = NULL;
584 p_sys->p_grab = NULL;
586 free( val.psz_string );
589 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
590 if( *val.psz_string )
592 config_chain_t *p_cfg;
594 SDPHandleUrl( p_stream, val.psz_string );
596 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
598 if( !strcmp( p_cfg->psz_name, "sdp" ) )
600 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
603 if( !strcmp( p_cfg->psz_value, val.psz_string ) ) /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
606 SDPHandleUrl( p_stream, p_cfg->psz_value );
610 free( val.psz_string );
612 /* update p_sout->i_out_pace_nocontrol */
613 p_stream->p_sout->i_out_pace_nocontrol++;
618 /*****************************************************************************
620 *****************************************************************************/
621 static void Close( vlc_object_t * p_this )
623 sout_stream_t *p_stream = (sout_stream_t*)p_this;
624 sout_stream_sys_t *p_sys = p_stream->p_sys;
626 /* update p_sout->i_out_pace_nocontrol */
627 p_stream->p_sout->i_out_pace_nocontrol--;
631 sout_MuxDelete( p_sys->p_mux );
632 sout_AccessOutDelete( p_sys->p_access );
633 sout_AccessOutDelete( p_sys->p_grab );
636 block_Release( p_sys->packet );
638 if( p_sys->b_export_sap )
641 SapSetup( p_stream );
645 while( p_sys->i_rtsp > 0 )
647 RtspClientDel( p_stream, p_sys->rtsp[0] );
650 vlc_mutex_destroy( &p_sys->lock_sdp );
652 if( p_sys->p_httpd_file )
654 httpd_FileDelete( p_sys->p_httpd_file );
656 if( p_sys->p_httpd_host )
658 httpd_HostDelete( p_sys->p_httpd_host );
660 if( p_sys->p_rtsp_url )
662 httpd_UrlDelete( p_sys->p_rtsp_url );
664 if( p_sys->p_rtsp_host )
666 httpd_HostDelete( p_sys->p_rtsp_host );
668 if( p_sys->psz_session_name )
670 free( p_sys->psz_session_name );
671 p_sys->psz_session_name = NULL;
673 if( p_sys->psz_session_description )
675 free( p_sys->psz_session_description );
676 p_sys->psz_session_description = NULL;
678 if( p_sys->psz_session_url )
680 free( p_sys->psz_session_url );
681 p_sys->psz_session_url = NULL;
683 if( p_sys->psz_session_email )
685 free( p_sys->psz_session_email );
686 p_sys->psz_session_email = NULL;
690 free( p_sys->psz_sdp );
691 p_sys->psz_sdp = NULL;
693 if( p_sys->b_export_sdp_file )
696 unlink( p_sys->psz_sdp_file );
698 free( p_sys->psz_sdp_file );
703 /*****************************************************************************
705 *****************************************************************************/
706 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
708 sout_stream_sys_t *p_sys = p_stream->p_sys;
711 vlc_UrlParse( &url, psz_url, 0 );
712 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
714 if( p_sys->p_httpd_file )
716 msg_Err( p_stream, "you can use sdp=http:// only once" );
720 if( HttpSetup( p_stream, &url ) )
722 msg_Err( p_stream, "cannot export sdp as http" );
725 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
727 if( p_sys->p_rtsp_url )
729 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
733 /* FIXME test if destination is multicast or no destination at all FIXME */
734 if( RtspSetup( p_stream, &url ) )
736 msg_Err( p_stream, "cannot export sdp as rtsp" );
739 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
740 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
742 p_sys->b_export_sap = VLC_TRUE;
743 SapSetup( p_stream );
745 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
747 if( p_sys->b_export_sdp_file )
749 msg_Err( p_stream, "you can use sdp=file:// only once" );
752 p_sys->b_export_sdp_file = VLC_TRUE;
753 psz_url = &psz_url[5];
754 if( psz_url[0] == '/' && psz_url[1] == '/' )
756 p_sys->psz_sdp_file = strdup( psz_url );
760 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
763 vlc_UrlClean( &url );
766 /*****************************************************************************
768 *****************************************************************************/
769 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
770 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
771 o= - should be local username (no spaces allowed)
772 o= time should be hashed with some other value to garantue uniqueness
773 o= we need IP6 support?
774 o= don't use the localhost address. use fully qualified domain name or IP4 address
775 p= international phone number (pass via vars?)
777 a= recvonly (missing)
778 a= type:broadcast (missing)
779 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
780 a= x-plgroup: (missing)
781 RTP packets need to get the correct src IP address */
782 static char *SDPGenerate( const sout_stream_t *p_stream,
783 const char *psz_destination, vlc_bool_t b_rtsp )
785 sout_stream_sys_t *p_sys = p_stream->p_sys;
787 char *psz_sdp, *p, ipv;
790 /* FIXME: breaks IP version check on unknown destination */
791 if( psz_destination == NULL )
792 psz_destination = "0.0.0.0";
794 i_size = sizeof( "v=0\r\n" ) +
795 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
796 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
797 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
798 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
799 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
800 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
801 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
802 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
803 strlen( psz_destination ) ;
804 for( i = 0; i < p_sys->i_es; i++ )
806 sout_stream_id_t *id = p_sys->es[i];
808 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
811 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
815 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
819 i_size += strlen( "b=AS: *\r\n") + 10;
823 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
828 i_size += strlen( "m=video %d RTP/AVP %d\r\n" ) +10 +10;
831 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
833 p = psz_sdp = malloc( i_size );
834 p += sprintf( p, "v=0\r\n" );
835 p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
836 p_sys->i_sdp_id, p_sys->i_sdp_version,
837 ipv, ipv == '6' ? "::" : "127.0.0.1" );
838 if( *p_sys->psz_session_name )
839 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
840 if( *p_sys->psz_session_description )
841 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
842 if( *p_sys->psz_session_url )
843 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
844 if( *p_sys->psz_session_email )
845 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
847 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
848 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
850 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
852 if( net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
854 /* Add the ttl if it is a multicast address */
855 /* FIXME: 1 is not a correct default value in the case of IPv6 */
856 p += sprintf( p, "/%d\r\n", p_sys->i_ttl ? p_sys->i_ttl : 1 );
860 p += sprintf( p, "\r\n" );
863 for( i = 0; i < p_sys->i_es; i++ )
865 sout_stream_id_t *id = p_sys->es[i];
867 if( id->i_cat == AUDIO_ES )
869 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
870 id->i_port, id->i_payload_type );
872 else if( id->i_cat == VIDEO_ES )
874 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
875 id->i_port, id->i_payload_type );
883 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
888 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
893 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
897 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
902 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
903 p_sys->i_port, p_sys->i_payload_type );
909 /*****************************************************************************
911 *****************************************************************************/
912 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
913 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
914 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
915 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
916 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
917 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
918 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
919 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
920 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
921 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
922 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
924 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
926 static const char hex[16] = "0123456789abcdef";
929 for( i = 0; i < i_data; i++ )
931 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
932 s[2*i+1] = hex[(p_data[i] )&0xf];
937 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
939 sout_instance_t *p_sout = p_stream->p_sout;
940 sout_stream_sys_t *p_sys = p_stream->p_sys;
941 sout_stream_id_t *id;
942 sout_access_out_t *p_access = NULL;
946 if( p_sys->p_mux != NULL )
948 sout_input_t *p_input = NULL;
949 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
951 msg_Err( p_stream, "cannot add this stream to the muxer" );
955 id = malloc( sizeof( sout_stream_id_t ) );
956 memset( id, 0, sizeof( sout_stream_id_t ) );
958 id->p_input = p_input;
959 id->pf_packetize= NULL;
960 id->p_rtsp_url = NULL;
966 /* Choose the port */
968 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
970 i_port = p_sys->i_port_audio;
971 p_sys->i_port_audio = 0;
973 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
975 i_port = p_sys->i_port_video;
976 p_sys->i_port_video = 0;
980 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
982 i_port = p_sys->i_port;
989 if( p_sys->psz_destination )
992 char url[NI_MAXHOST + 8];
994 /* first try to create the access out */
997 snprintf( access, sizeof( access ), "udp{raw,ttl=%d}",
999 access[sizeof( access ) - 1] = '\0';
1002 strcpy( access, "udp{raw}" );
1004 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
1005 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
1006 p_sys->psz_destination, i_port );
1007 url[sizeof( url ) - 1] = '\0';
1009 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
1011 msg_Err( p_stream, "cannot create the access out for %s://%s",
1015 msg_Dbg( p_stream, "access out %s:%s", access, url );
1018 /* not create the rtp specific stuff */
1019 id = malloc( sizeof( sout_stream_id_t ) );
1020 memset( id, 0, sizeof( sout_stream_id_t ) );
1021 id->p_stream = p_stream;
1022 id->p_access = p_access;
1024 id->psz_rtpmap = NULL;
1025 id->psz_fmtp = NULL;
1026 id->psz_destination = p_sys->psz_destination ? strdup( p_sys->psz_destination ) : NULL;
1027 id->i_port = i_port;
1028 id->p_rtsp_url = NULL;
1029 vlc_mutex_init( p_stream, &id->lock_rtsp );
1030 id->i_rtsp_access = 0;
1031 id->rtsp_access = NULL;
1033 switch( p_fmt->i_codec )
1035 case VLC_FOURCC( 's', '1', '6', 'b' ):
1036 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
1038 id->i_payload_type = 11;
1040 else if( p_fmt->audio.i_channels == 2 &&
1041 p_fmt->audio.i_rate == 44100 )
1043 id->i_payload_type = 10;
1047 id->i_payload_type = p_sys->i_payload_type++;
1049 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
1050 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
1051 p_fmt->audio.i_channels );
1052 id->i_clock_rate = p_fmt->audio.i_rate;
1053 id->pf_packetize = rtp_packetize_l16;
1055 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
1056 id->i_payload_type = p_sys->i_payload_type++;
1057 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
1058 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
1059 p_fmt->audio.i_channels );
1060 id->i_clock_rate = p_fmt->audio.i_rate;
1061 id->pf_packetize = rtp_packetize_l8;
1063 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
1064 id->i_payload_type = 14;
1065 id->i_clock_rate = 90000;
1066 id->psz_rtpmap = strdup( "MPA/90000" );
1067 id->pf_packetize = rtp_packetize_mpa;
1069 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
1070 id->i_payload_type = 32;
1071 id->i_clock_rate = 90000;
1072 id->psz_rtpmap = strdup( "MPV/90000" );
1073 id->pf_packetize = rtp_packetize_mpv;
1075 case VLC_FOURCC( 'a', '5', '2', ' ' ):
1076 id->i_payload_type = p_sys->i_payload_type++;
1077 id->i_clock_rate = 90000;
1078 id->psz_rtpmap = strdup( "ac3/90000" );
1079 id->pf_packetize = rtp_packetize_ac3;
1081 case VLC_FOURCC( 'H', '2', '6', '3' ):
1082 id->i_payload_type = p_sys->i_payload_type++;
1083 id->i_clock_rate = 90000;
1084 id->psz_rtpmap = strdup( "H263-1998/90000" );
1085 id->pf_packetize = rtp_packetize_h263;
1087 case VLC_FOURCC( 'h', '2', '6', '4' ):
1088 id->i_payload_type = p_sys->i_payload_type++;
1089 id->i_clock_rate = 90000;
1090 id->psz_rtpmap = strdup( "H264/90000" );
1091 id->pf_packetize = rtp_packetize_h264;
1092 id->psz_fmtp = NULL;
1094 if( p_fmt->i_extra > 0 )
1096 uint8_t *p_buffer = p_fmt->p_extra;
1097 int i_buffer = p_fmt->i_extra;
1098 char *p_64_sps = NULL;
1099 char *p_64_pps = NULL;
1102 while( i_buffer > 4 &&
1103 p_buffer[0] == 0 && p_buffer[1] == 0 &&
1104 p_buffer[2] == 0 && p_buffer[3] == 1 )
1106 const int i_nal_type = p_buffer[4]&0x1f;
1110 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1113 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1115 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
1117 /* we found another startcode */
1122 if( i_nal_type == 7 )
1124 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1125 sprintf_hexa( hexa, &p_buffer[5], 3 );
1127 else if( i_nal_type == 8 )
1129 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1135 if( p_64_sps && p_64_pps )
1136 asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
1143 id->psz_fmtp = strdup( "packetization-mode=1" );
1146 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1148 char hexa[2*p_fmt->i_extra +1];
1150 id->i_payload_type = p_sys->i_payload_type++;
1151 id->i_clock_rate = 90000;
1152 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1153 id->pf_packetize = rtp_packetize_split;
1154 if( p_fmt->i_extra > 0 )
1156 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1157 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1158 sprintf( id->psz_fmtp,
1159 "profile-level-id=3; config=%s;", hexa );
1163 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1165 id->i_payload_type = p_sys->i_payload_type++;
1166 id->i_clock_rate = p_fmt->audio.i_rate;
1170 char hexa[2*p_fmt->i_extra +1];
1172 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1173 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1174 id->pf_packetize = rtp_packetize_mp4a;
1175 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1176 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1177 sprintf( id->psz_fmtp,
1178 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1179 "config=%s; SizeLength=13;IndexLength=3; "
1180 "IndexDeltaLength=3; Profile=1;", hexa );
1186 unsigned char config[6];
1187 unsigned int aacsrates[15] = {
1188 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1189 16000, 12000, 11025, 8000, 7350, 0, 0 };
1191 for( i = 0; i < 15; i++ )
1192 if( p_fmt->audio.i_rate == aacsrates[i] )
1198 config[3]=p_fmt->audio.i_channels<<4;
1202 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1203 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1204 id->pf_packetize = rtp_packetize_mp4a_latm;
1205 sprintf_hexa( hexa, config, 6 );
1206 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1207 "object=2; cpresent=0; config=%s", hexa );
1211 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1212 id->i_payload_type = p_sys->i_payload_type++;
1213 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1214 "AMR/8000/2" : "AMR/8000" );
1215 id->psz_fmtp = strdup( "octet-align=1" );
1216 id->i_clock_rate = p_fmt->audio.i_rate;
1217 id->pf_packetize = rtp_packetize_amr;
1219 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1220 id->i_payload_type = p_sys->i_payload_type++;
1221 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1222 "AMR-WB/16000/2" : "AMR-WB/16000" );
1223 id->psz_fmtp = strdup( "octet-align=1" );
1224 id->i_clock_rate = p_fmt->audio.i_rate;
1225 id->pf_packetize = rtp_packetize_amr;
1229 msg_Err( p_stream, "cannot add this stream (unsupported "
1230 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1233 sout_AccessOutDelete( p_access );
1238 id->i_cat = p_fmt->i_cat;
1240 id->ssrc[0] = rand()&0xff;
1241 id->ssrc[1] = rand()&0xff;
1242 id->ssrc[2] = rand()&0xff;
1243 id->ssrc[3] = rand()&0xff;
1244 id->i_sequence = rand()&0xffff;
1245 id->i_timestamp_start = rand()&0xffffffff;
1246 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1248 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1249 if( id->i_mtu <= 16 + MTU_REDUCE )
1251 /* better than nothing */
1254 id->i_mtu -= MTU_REDUCE;
1255 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1257 if( p_sys->p_rtsp_url )
1259 char psz_urlc[strlen( p_sys->psz_rtsp_control ) + 1 + 10];
1261 sprintf( psz_urlc, "%s/trackID=%d", p_sys->psz_rtsp_path, p_sys->i_es );
1262 msg_Dbg( p_stream, "rtsp: adding %s\n", psz_urlc );
1263 id->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, psz_urlc, NULL, NULL, NULL );
1265 if( id->p_rtsp_url )
1267 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallbackId, (void*)id );
1268 //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
1269 //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
1274 /* Update p_sys context */
1275 vlc_mutex_lock( &p_sys->lock_es );
1276 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1277 vlc_mutex_unlock( &p_sys->lock_es );
1279 psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE );
1281 vlc_mutex_lock( &p_sys->lock_sdp );
1282 free( p_sys->psz_sdp );
1283 p_sys->psz_sdp = psz_sdp;
1284 vlc_mutex_unlock( &p_sys->lock_sdp );
1286 p_sys->i_sdp_version++;
1288 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
1290 /* Update SDP (sap/file) */
1291 if( p_sys->b_export_sap ) SapSetup( p_stream );
1292 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1297 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1299 sout_stream_sys_t *p_sys = p_stream->p_sys;
1301 vlc_mutex_lock( &p_sys->lock_es );
1302 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1303 vlc_mutex_unlock( &p_sys->lock_es );
1306 if( id->i_port > 0 )
1308 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1309 p_sys->i_port_audio = id->i_port;
1310 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1311 p_sys->i_port_video = id->i_port;
1316 if( id->psz_rtpmap )
1318 free( id->psz_rtpmap );
1322 free( id->psz_fmtp );
1324 if( id->psz_destination )
1325 free( id->psz_destination );
1326 sout_AccessOutDelete( id->p_access );
1328 else if( id->p_input )
1330 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1332 if( id->p_rtsp_url )
1334 httpd_UrlDelete( id->p_rtsp_url );
1336 vlc_mutex_destroy( &id->lock_rtsp );
1337 if( id->rtsp_access ) free( id->rtsp_access );
1339 /* Update SDP (sap/file) */
1340 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1341 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1347 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1352 if( p_stream->p_sys->p_mux )
1354 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1360 p_next = p_buffer->p_next;
1361 if( id->pf_packetize( p_stream, id, p_buffer ) )
1365 block_Release( p_buffer );
1373 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1376 sout_stream_sys_t *p_sys = p_stream->p_sys;
1378 int64_t i_dts = p_buffer->i_dts;
1379 uint32_t i_timestamp = i_dts * 9 / 100;
1381 uint8_t *p_data = p_buffer->p_buffer;
1382 unsigned int i_data = p_buffer->i_buffer;
1383 unsigned int i_max = p_sys->i_mtu - 12;
1385 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1389 unsigned int i_size;
1391 /* output complete packet */
1392 if( p_sys->packet &&
1393 p_sys->packet->i_buffer + i_data > i_max )
1395 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1396 p_sys->packet = NULL;
1399 if( p_sys->packet == NULL )
1401 /* allocate a new packet */
1402 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1403 p_sys->packet->p_buffer[ 0] = 0x80;
1404 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1405 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1406 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1407 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1408 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1409 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1410 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1411 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1412 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1413 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1414 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1415 p_sys->packet->i_buffer = 12;
1417 p_sys->packet->i_dts = i_dts;
1418 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1419 i_dts += p_sys->packet->i_length;
1421 p_sys->i_sequence++;
1424 i_size = __MIN( i_data,
1425 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1427 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1430 p_sys->packet->i_buffer += i_size;
1438 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1441 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1443 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1449 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1451 p_next = p_buffer->p_next;
1452 block_Release( p_buffer );
1459 /****************************************************************************
1461 ****************************************************************************/
1462 static int SapSetup( sout_stream_t *p_stream )
1464 sout_stream_sys_t *p_sys = p_stream->p_sys;
1465 sout_instance_t *p_sout = p_stream->p_sout;
1466 announce_method_t *p_method = sout_SAPMethod();
1468 /* Remove the previous session */
1469 if( p_sys->p_session != NULL)
1471 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1472 sout_AnnounceSessionDestroy( p_sys->p_session );
1473 p_sys->p_session = NULL;
1476 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1478 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1480 p_sys->psz_destination,
1484 sout_MethodRelease( p_method );
1488 /****************************************************************************
1490 ****************************************************************************/
1491 static int FileSetup( sout_stream_t *p_stream )
1493 sout_stream_sys_t *p_sys = p_stream->p_sys;
1496 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1498 msg_Err( p_stream, "cannot open file '%s' (%s)",
1499 p_sys->psz_sdp_file, strerror(errno) );
1500 return VLC_EGENERIC;
1503 fprintf( f, "%s", p_sys->psz_sdp );
1509 /****************************************************************************
1511 ****************************************************************************/
1512 static int HttpCallback( httpd_file_sys_t *p_args,
1513 httpd_file_t *, uint8_t *p_request,
1514 uint8_t **pp_data, int *pi_data );
1516 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1518 sout_stream_sys_t *p_sys = p_stream->p_sys;
1520 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1521 if( p_sys->p_httpd_host )
1523 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1524 url->psz_path ? url->psz_path : "/",
1527 HttpCallback, (void*)p_sys );
1529 if( p_sys->p_httpd_file == NULL )
1531 return VLC_EGENERIC;
1536 static int HttpCallback( httpd_file_sys_t *p_args,
1537 httpd_file_t *f, uint8_t *p_request,
1538 uint8_t **pp_data, int *pi_data )
1540 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1542 vlc_mutex_lock( &p_sys->lock_sdp );
1543 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1545 *pi_data = strlen( p_sys->psz_sdp );
1546 *pp_data = malloc( *pi_data );
1547 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1554 vlc_mutex_unlock( &p_sys->lock_sdp );
1559 /****************************************************************************
1561 ****************************************************************************/
1562 static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, const char *psz_session )
1564 rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t ));
1566 rtsp->psz_session = strdup( psz_session );
1568 rtsp->b_playing = VLC_FALSE;
1572 rtsp->access = NULL;
1574 TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
1578 static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, const char *psz_session )
1582 if( !psz_session ) return NULL;
1584 for( i = 0; i < p_stream->p_sys->i_rtsp; i++ )
1586 if( !strcmp( p_stream->p_sys->rtsp[i]->psz_session, psz_session ) )
1588 return p_stream->p_sys->rtsp[i];
1594 static void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp )
1597 TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
1599 for( i = 0; i < rtsp->i_access; i++ )
1601 sout_AccessOutDelete( rtsp->access[i] );
1603 if( rtsp->id ) free( rtsp->id );
1604 if( rtsp->access ) free( rtsp->access );
1606 free( rtsp->psz_session );
1610 static int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url )
1612 sout_stream_sys_t *p_sys = p_stream->p_sys;
1614 msg_Dbg( p_stream, "rtsp setup: %s : %d / %s\n", url->psz_host, url->i_port, url->psz_path );
1616 p_sys->p_rtsp_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 554 );
1617 if( p_sys->p_rtsp_host == NULL )
1619 return VLC_EGENERIC;
1622 p_sys->psz_rtsp_path = strdup( url->psz_path ? url->psz_path : "/" );
1623 p_sys->psz_rtsp_control = malloc (strlen( url->psz_host ) + 20 + strlen( p_sys->psz_rtsp_path ) + 1 );
1624 sprintf( p_sys->psz_rtsp_control, "rtsp://%s:%d%s",
1625 url->psz_host, url->i_port > 0 ? url->i_port : 554, p_sys->psz_rtsp_path );
1627 p_sys->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, p_sys->psz_rtsp_path, NULL, NULL, NULL );
1628 if( p_sys->p_rtsp_url == 0 )
1630 return VLC_EGENERIC;
1632 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_DESCRIBE, RtspCallback, (void*)p_stream );
1633 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
1634 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
1635 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)p_stream );
1640 static int RtspCallback( httpd_callback_sys_t *p_args,
1642 httpd_message_t *answer, httpd_message_t *query )
1644 sout_stream_t *p_stream = (sout_stream_t*)p_args;
1645 sout_stream_sys_t *p_sys = p_stream->p_sys;
1646 char *psz_destination = p_sys->psz_destination;
1647 const char *psz_session = NULL;
1648 const char *psz_cseq = NULL;
1651 if( answer == NULL || query == NULL )
1655 //fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
1657 answer->i_proto = HTTPD_PROTO_RTSP;
1658 answer->i_version= query->i_version;
1659 answer->i_type = HTTPD_MSG_ANSWER;
1661 switch( query->i_type )
1663 case HTTPD_MSG_DESCRIBE:
1665 char *psz_sdp = SDPGenerate( p_stream, psz_destination ? psz_destination : "0.0.0.0", VLC_TRUE );
1667 answer->i_status = 200;
1668 answer->psz_status = strdup( "OK" );
1669 httpd_MsgAdd( answer, "Content-type", "%s", "application/sdp" );
1670 httpd_MsgAdd( answer, "Content-Base", "%s", p_sys->psz_rtsp_control );
1671 answer->p_body = (uint8_t *)psz_sdp;
1672 answer->i_body = strlen( psz_sdp );
1676 case HTTPD_MSG_PLAY:
1678 rtsp_client_t *rtsp;
1679 /* for now only multicast so easy */
1680 answer->i_status = 200;
1681 answer->psz_status = strdup( "OK" );
1683 answer->p_body = NULL;
1685 psz_session = httpd_MsgGet( query, "Session" );
1686 rtsp = RtspClientGet( p_stream, psz_session );
1687 if( rtsp && !rtsp->b_playing )
1691 rtsp->b_playing = VLC_TRUE;
1693 vlc_mutex_lock( &p_sys->lock_es );
1694 for( i_id = 0; i_id < rtsp->i_id; i_id++ )
1696 sout_stream_id_t *id = rtsp->id[i_id];
1699 for( i = 0; i < p_sys->i_es; i++ )
1701 if( id == p_sys->es[i] )
1704 if( i >= p_sys->i_es ) continue;
1706 vlc_mutex_lock( &id->lock_rtsp );
1707 TAB_APPEND( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
1708 vlc_mutex_unlock( &id->lock_rtsp );
1710 vlc_mutex_unlock( &p_sys->lock_es );
1714 case HTTPD_MSG_PAUSE:
1716 return VLC_EGENERIC;
1717 case HTTPD_MSG_TEARDOWN:
1719 rtsp_client_t *rtsp;
1721 /* for now only multicast so easy again */
1722 answer->i_status = 200;
1723 answer->psz_status = strdup( "OK" );
1725 answer->p_body = NULL;
1727 psz_session = httpd_MsgGet( query, "Session" );
1728 rtsp = RtspClientGet( p_stream, psz_session );
1733 vlc_mutex_lock( &p_sys->lock_es );
1734 for( i_id = 0; i_id < rtsp->i_id; i_id++ )
1736 sout_stream_id_t *id = rtsp->id[i_id];
1739 for( i = 0; i < p_sys->i_es; i++ )
1741 if( id == p_sys->es[i] )
1744 if( i >= p_sys->i_es ) continue;
1746 vlc_mutex_lock( &id->lock_rtsp );
1747 TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
1748 vlc_mutex_unlock( &id->lock_rtsp );
1750 vlc_mutex_unlock( &p_sys->lock_es );
1752 RtspClientDel( p_stream, rtsp );
1758 return VLC_EGENERIC;
1760 httpd_MsgAdd( answer, "Server", PACKAGE_STRING );
1761 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1762 psz_cseq = httpd_MsgGet( query, "Cseq" );
1764 i_cseq = atoi( psz_cseq );
1767 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1768 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1771 httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session );
1775 static int RtspCallbackId( httpd_callback_sys_t *p_args,
1777 httpd_message_t *answer, httpd_message_t *query )
1779 sout_stream_id_t *id = (sout_stream_id_t*)p_args;
1780 sout_stream_t *p_stream = id->p_stream;
1781 sout_stream_sys_t *p_sys = p_stream->p_sys;
1782 char psz_session_init[100];
1783 const char *psz_session = NULL;
1784 const char *psz_cseq = NULL;
1788 if( answer == NULL || query == NULL )
1790 //fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
1793 snprintf( psz_session_init, sizeof(psz_session_init), "%d", rand() );
1796 answer->i_proto = HTTPD_PROTO_RTSP;
1797 answer->i_version= query->i_version;
1798 answer->i_type = HTTPD_MSG_ANSWER;
1800 switch( query->i_type )
1802 case HTTPD_MSG_SETUP:
1804 const char *psz_transport = httpd_MsgGet( query, "Transport" );
1806 //fprintf( stderr, "HTTPD_MSG_SETUP: transport=%s\n", psz_transport );
1808 if( strstr( psz_transport, "multicast" ) && id->psz_destination )
1810 //fprintf( stderr, "HTTPD_MSG_SETUP: multicast\n" );
1811 answer->i_status = 200;
1812 answer->psz_status = strdup( "OK" );
1814 answer->p_body = NULL;
1816 psz_session = httpd_MsgGet( query, "Session" );
1818 psz_session = psz_session_init;
1820 httpd_MsgAdd( answer, "Transport",
1821 "RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d",
1822 id->psz_destination, id->i_port,id->i_port+1,
1823 p_sys->i_ttl > 0 ? p_sys->i_ttl : 1);
1825 else if( strstr( psz_transport, "unicast" ) && strstr( psz_transport, "client_port=" ) )
1827 int i_port = atoi( strstr( psz_transport, "client_port=" ) + strlen("client_port=") );
1828 char ip[NI_MAXNUMERICHOST], psz_access[17], psz_url[NI_MAXNUMERICHOST + 8];
1830 sout_access_out_t *p_access;
1832 rtsp_client_t *rtsp = NULL;
1834 if( httpd_ClientIP( cl, ip ) == NULL )
1836 answer->i_status = 500;
1837 answer->psz_status = strdup( "Internal server error" );
1839 answer->p_body = NULL;
1843 //fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%d\n", ip, i_port );
1845 psz_session = httpd_MsgGet( query, "Session" );
1848 psz_session = psz_session_init;
1849 rtsp = RtspClientNew( p_stream, psz_session_init );
1853 rtsp = RtspClientGet( p_stream, psz_session );
1856 answer->i_status = 454;
1857 answer->psz_status = strdup( "Unknown session id" );
1859 answer->p_body = NULL;
1864 /* first try to create the access out */
1866 snprintf( psz_access, sizeof( psz_access ),
1867 "udp{raw,ttl=%d}", p_sys->i_ttl );
1869 strlcpy( psz_access, "udp{raw}", sizeof( psz_access ) );
1871 snprintf( psz_url, sizeof( psz_url ),
1872 ( strchr( ip, ':' ) != NULL ) ? "[%s]:%d" : "%s:%d",
1875 if( ( p_access = sout_AccessOutNew( p_stream->p_sout, psz_access, psz_url ) ) == NULL )
1877 msg_Err( p_stream, "cannot create the access out for %s://%s",
1878 psz_access, psz_url );
1879 answer->i_status = 500;
1880 answer->psz_status = strdup( "Internal server error" );
1882 answer->p_body = NULL;
1886 TAB_APPEND( rtsp->i_id, rtsp->id, id );
1887 TAB_APPEND( rtsp->i_access, rtsp->access, p_access );
1889 answer->i_status = 200;
1890 answer->psz_status = strdup( "OK" );
1892 answer->p_body = NULL;
1894 httpd_MsgAdd( answer, "Transport",
1895 "RTP/AVP/UDP;client_port=%d-%d", i_port, i_port + 1 );
1897 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1899 answer->i_status = 461;
1900 answer->psz_status = strdup( "Unsupported Transport" );
1902 answer->p_body = NULL;
1908 return VLC_EGENERIC;
1910 httpd_MsgAdd( answer, "Server", "VLC Server" );
1911 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1912 psz_cseq = httpd_MsgGet( query, "Cseq" );
1914 i_cseq = atoi( psz_cseq );
1917 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1918 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1921 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1925 /****************************************************************************
1927 ****************************************************************************/
1928 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1929 int b_marker, int64_t i_pts )
1931 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1933 out->p_buffer[0] = 0x80;
1934 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1935 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1936 out->p_buffer[3] = ( id->i_sequence )&0xff;
1937 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1938 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1939 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1940 out->p_buffer[7] = ( i_timestamp )&0xff;
1942 out->p_buffer[ 8] = id->ssrc[0];
1943 out->p_buffer[ 9] = id->ssrc[1];
1944 out->p_buffer[10] = id->ssrc[2];
1945 out->p_buffer[11] = id->ssrc[3];
1951 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1954 vlc_mutex_lock( &id->lock_rtsp );
1955 for( i = 0; i < id->i_rtsp_access; i++ )
1957 sout_AccessOutWrite( id->rtsp_access[i], block_Duplicate( out ) );
1959 vlc_mutex_unlock( &id->lock_rtsp );
1963 sout_AccessOutWrite( id->p_access, out );
1967 block_Release( out );
1971 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1974 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1975 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1977 uint8_t *p_data = in->p_buffer;
1978 int i_data = in->i_buffer;
1981 for( i = 0; i < i_count; i++ )
1983 int i_payload = __MIN( i_max, i_data );
1984 block_t *out = block_New( p_stream, 16 + i_payload );
1986 /* rtp common header */
1987 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1989 out->p_buffer[12] = 0;
1990 out->p_buffer[13] = 0;
1991 /* fragment offset in the current frame */
1992 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1993 out->p_buffer[15] = ( (i*i_max) )&0xff;
1994 memcpy( &out->p_buffer[16], p_data, i_payload );
1996 out->i_buffer = 16 + i_payload;
1997 out->i_dts = in->i_dts + i * in->i_length / i_count;
1998 out->i_length = in->i_length / i_count;
2000 rtp_packetize_send( id, out );
2002 p_data += i_payload;
2003 i_data -= i_payload;
2010 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
2013 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
2014 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2016 uint8_t *p_data = in->p_buffer;
2017 int i_data = in->i_buffer;
2019 int b_sequence_start = 0;
2020 int i_temporal_ref = 0;
2021 int i_picture_coding_type = 0;
2022 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
2023 int b_start_slice = 0;
2025 /* preparse this packet to get some info */
2026 if( in->i_buffer > 4 )
2028 uint8_t *p = p_data;
2029 int i_rest = in->i_buffer;
2033 while( i_rest > 4 &&
2034 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
2048 /* sequence start code */
2049 b_sequence_start = 1;
2051 else if( *p == 0x00 && i_rest >= 4 )
2054 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
2055 i_picture_coding_type = (p[2] >> 3)&0x07;
2057 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
2058 i_picture_coding_type == 3 ) )
2060 i_ffv = (p[3] >> 2)&0x01;
2061 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
2062 if( i_rest > 4 && i_picture_coding_type == 3 )
2064 i_fbv = (p[4]>>6)&0x01;
2065 i_bfc = (p[4]>>3)&0x07;
2069 else if( *p <= 0xaf )
2076 for( i = 0; i < i_count; i++ )
2078 int i_payload = __MIN( i_max, i_data );
2079 block_t *out = block_New( p_stream,
2081 uint32_t h = ( i_temporal_ref << 16 )|
2082 ( b_sequence_start << 13 )|
2083 ( b_start_slice << 12 )|
2084 ( i == i_count - 1 ? 1 << 11 : 0 )|
2085 ( i_picture_coding_type << 8 )|
2086 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
2088 /* rtp common header */
2089 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
2090 in->i_pts > 0 ? in->i_pts : in->i_dts );
2092 /* MBZ:5 T:1 TR:10 AN:1 N:1 S:1 B:1 E:1 P:3 FBV:1 BFC:3 FFV:1 FFC:3 */
2093 out->p_buffer[12] = ( h >> 24 )&0xff;
2094 out->p_buffer[13] = ( h >> 16 )&0xff;
2095 out->p_buffer[14] = ( h >> 8 )&0xff;
2096 out->p_buffer[15] = ( h )&0xff;
2098 memcpy( &out->p_buffer[16], p_data, i_payload );
2100 out->i_buffer = 16 + i_payload;
2101 out->i_dts = in->i_dts + i * in->i_length / i_count;
2102 out->i_length = in->i_length / i_count;
2104 rtp_packetize_send( id, out );
2106 p_data += i_payload;
2107 i_data -= i_payload;
2113 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
2116 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
2117 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2119 uint8_t *p_data = in->p_buffer;
2120 int i_data = in->i_buffer;
2123 for( i = 0; i < i_count; i++ )
2125 int i_payload = __MIN( i_max, i_data );
2126 block_t *out = block_New( p_stream, 14 + i_payload );
2128 /* rtp common header */
2129 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
2131 out->p_buffer[12] = 1;
2133 out->p_buffer[13] = 0x00;
2135 memcpy( &out->p_buffer[14], p_data, i_payload );
2137 out->i_buffer = 14 + i_payload;
2138 out->i_dts = in->i_dts + i * in->i_length / i_count;
2139 out->i_length = in->i_length / i_count;
2141 rtp_packetize_send( id, out );
2143 p_data += i_payload;
2144 i_data -= i_payload;
2150 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
2153 int i_max = id->i_mtu - 12; /* payload max in one packet */
2154 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2156 uint8_t *p_data = in->p_buffer;
2157 int i_data = in->i_buffer;
2160 for( i = 0; i < i_count; i++ )
2162 int i_payload = __MIN( i_max, i_data );
2163 block_t *out = block_New( p_stream, 12 + i_payload );
2165 /* rtp common header */
2166 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2167 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2168 memcpy( &out->p_buffer[12], p_data, i_payload );
2170 out->i_buffer = 12 + i_payload;
2171 out->i_dts = in->i_dts + i * in->i_length / i_count;
2172 out->i_length = in->i_length / i_count;
2174 rtp_packetize_send( id, out );
2176 p_data += i_payload;
2177 i_data -= i_payload;
2184 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
2187 int i_max = id->i_mtu - 14; /* payload max in one packet */
2188 int latmhdrsize = in->i_buffer / 0xff + 1;
2189 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2191 uint8_t *p_data = in->p_buffer, *p_header = NULL;
2192 int i_data = in->i_buffer;
2195 for( i = 0; i < i_count; i++ )
2197 int i_payload = __MIN( i_max, i_data );
2202 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
2204 /* rtp common header */
2205 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
2206 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2210 int tmp = in->i_buffer;
2212 p_header=out->p_buffer+12;
2222 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
2224 out->i_buffer = 12 + latmhdrsize + i_payload;
2225 out->i_dts = in->i_dts + i * in->i_length / i_count;
2226 out->i_length = in->i_length / i_count;
2228 rtp_packetize_send( id, out );
2230 p_data += i_payload;
2231 i_data -= i_payload;
2237 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
2240 int i_max = id->i_mtu - 12; /* payload max in one packet */
2241 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2243 uint8_t *p_data = in->p_buffer;
2244 int i_data = in->i_buffer;
2249 int i_payload = (__MIN( i_max, i_data )/4)*4;
2250 block_t *out = block_New( p_stream, 12 + i_payload );
2252 /* rtp common header */
2253 rtp_packetize_common( id, out, 0,
2254 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2255 memcpy( &out->p_buffer[12], p_data, i_payload );
2257 out->i_buffer = 12 + i_payload;
2258 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
2259 out->i_length = in->i_length / i_count;
2261 rtp_packetize_send( id, out );
2263 p_data += i_payload;
2264 i_data -= i_payload;
2271 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
2274 int i_max = id->i_mtu - 12; /* payload max in one packet */
2275 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2277 uint8_t *p_data = in->p_buffer;
2278 int i_data = in->i_buffer;
2283 int i_payload = (__MIN( i_max, i_data )/2)*2;
2284 block_t *out = block_New( p_stream, 12 + i_payload );
2286 /* rtp common header */
2287 rtp_packetize_common( id, out, 0,
2288 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2289 memcpy( &out->p_buffer[12], p_data, i_payload );
2291 out->i_buffer = 12 + i_payload;
2292 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
2293 out->i_length = in->i_length / i_count;
2295 rtp_packetize_send( id, out );
2297 p_data += i_payload;
2298 i_data -= i_payload;
2304 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
2307 int i_max = id->i_mtu - 16; /* payload max in one packet */
2308 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2310 uint8_t *p_data = in->p_buffer;
2311 int i_data = in->i_buffer;
2314 for( i = 0; i < i_count; i++ )
2316 int i_payload = __MIN( i_max, i_data );
2317 block_t *out = block_New( p_stream, 16 + i_payload );
2319 /* rtp common header */
2320 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2321 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2323 /* AU headers length (bits) */
2324 out->p_buffer[12] = 0;
2325 out->p_buffer[13] = 2*8;
2326 /* for each AU length 13 bits + idx 3bits, */
2327 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
2328 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
2330 memcpy( &out->p_buffer[16], p_data, i_payload );
2332 out->i_buffer = 16 + i_payload;
2333 out->i_dts = in->i_dts + i * in->i_length / i_count;
2334 out->i_length = in->i_length / i_count;
2336 rtp_packetize_send( id, out );
2338 p_data += i_payload;
2339 i_data -= i_payload;
2347 #define RTP_H263_HEADER_SIZE (2) // plen = 0
2348 #define RTP_H263_PAYLOAD_START (14) // plen = 0
2349 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
2352 uint8_t *p_data = in->p_buffer;
2353 int i_data = in->i_buffer;
2355 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
2358 int b_v_bit = 0; // no pesky error resilience
2359 int i_plen = 0; // normally plen=0 for PSC packet
2360 int i_pebit = 0; // because plen=0
2365 return VLC_EGENERIC;
2367 if( p_data[0] || p_data[1] )
2369 return VLC_EGENERIC;
2371 /* remove 2 leading 0 bytes */
2374 i_count = ( i_data + i_max - 1 ) / i_max;
2376 for( i = 0; i < i_count; i++ )
2378 int i_payload = __MIN( i_max, i_data );
2379 block_t *out = block_New( p_stream,
2380 RTP_H263_PAYLOAD_START + i_payload );
2381 b_p_bit = (i == 0) ? 1 : 0;
2382 h = ( b_p_bit << 10 )|
2387 /* rtp common header */
2388 //b_m_bit = 1; // always contains end of frame
2389 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
2390 in->i_pts > 0 ? in->i_pts : in->i_dts );
2393 out->p_buffer[12] = ( h >> 8 )&0xff;
2394 out->p_buffer[13] = ( h )&0xff;
2395 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
2397 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
2398 out->i_dts = in->i_dts + i * in->i_length / i_count;
2399 out->i_length = in->i_length / i_count;
2401 rtp_packetize_send( id, out );
2403 p_data += i_payload;
2404 i_data -= i_payload;
2411 static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
2412 const uint8_t *p_data, int i_data, int64_t i_pts, int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
2414 const int i_max = id->i_mtu - 12; /* payload max in one packet */
2421 i_nal_hdr = p_data[3];
2422 i_nal_type = i_nal_hdr&0x1f;
2423 if( i_nal_type == 7 || i_nal_type == 8 )
2425 /* XXX Why do you want to remove them ? It will break streaming with
2426 * SPS/PPS change (broadcast) ? */
2430 /* Skip start code */
2435 if( i_data <= i_max )
2437 /* Single NAL unit packet */
2438 block_t *out = block_New( p_stream, 12 + i_data );
2440 out->i_length = i_length;
2443 rtp_packetize_common( id, out, b_last, i_pts );
2444 out->i_buffer = 12 + i_data;
2446 memcpy( &out->p_buffer[12], p_data, i_data );
2448 rtp_packetize_send( id, out );
2452 /* FU-A Fragmentation Unit without interleaving */
2453 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
2459 for( i = 0; i < i_count; i++ )
2461 const int i_payload = __MIN( i_data, i_max-2 );
2462 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
2463 out->i_dts = i_dts + i * i_length / i_count;
2464 out->i_length = i_length / i_count;
2467 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
2468 out->i_buffer = 14 + i_payload;
2471 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
2473 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
2474 memcpy( &out->p_buffer[14], p_data, i_payload );
2476 rtp_packetize_send( id, out );
2478 i_data -= i_payload;
2479 p_data += i_payload;
2485 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
2488 const uint8_t *p_buffer = in->p_buffer;
2489 int i_buffer = in->i_buffer;
2491 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
2497 /* Split nal units */
2498 while( i_buffer > 4 )
2501 int i_size = i_buffer;
2502 int i_skip = i_buffer;
2504 /* search nal end */
2505 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
2507 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
2509 /* we found another startcode */
2510 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
2515 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
2516 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
2517 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
2518 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2526 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2529 int i_max = id->i_mtu - 14; /* payload max in one packet */
2530 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2532 uint8_t *p_data = in->p_buffer;
2533 int i_data = in->i_buffer;
2536 /* Only supports octet-aligned mode */
2537 for( i = 0; i < i_count; i++ )
2539 int i_payload = __MIN( i_max, i_data );
2540 block_t *out = block_New( p_stream, 14 + i_payload );
2542 /* rtp common header */
2543 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2544 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2545 /* Payload header */
2546 out->p_buffer[12] = 0xF0; /* CMR */
2547 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2549 /* FIXME: are we fed multiple frames ? */
2550 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2552 out->i_buffer = 14 + i_payload-1;
2553 out->i_dts = in->i_dts + i * in->i_length / i_count;
2554 out->i_length = in->i_length / i_count;
2556 rtp_packetize_send( id, out );
2558 p_data += i_payload;
2559 i_data -= i_payload;