1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
5 * Copyright © 2007 Rémi Denis-Courmont
8 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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.
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.
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 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc_block.h>
33 #include <vlc_httpd.h>
35 #include <vlc_network.h>
36 #include <vlc_charset.h>
37 #include <vlc_strings.h>
42 # include <sys/types.h>
45 # include <sys/stat.h>
50 /*****************************************************************************
52 *****************************************************************************/
54 #define DST_TEXT N_("Destination")
55 #define DST_LONGTEXT N_( \
56 "This is the output URL that will be used." )
57 #define SDP_TEXT N_("SDP")
58 #define SDP_LONGTEXT N_( \
59 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
60 "session will be made available. You must use an url: http://location to " \
61 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
62 "for the SDP to be announced via SAP." )
63 #define MUX_TEXT N_("Muxer")
64 #define MUX_LONGTEXT N_( \
65 "This allows you to specify the muxer used for the streaming output. " \
66 "Default is to use no muxer (standard RTP stream)." )
68 #define NAME_TEXT N_("Session name")
69 #define NAME_LONGTEXT N_( \
70 "This is the name of the session that will be announced in the SDP " \
71 "(Session Descriptor)." )
72 #define DESC_TEXT N_("Session description")
73 #define DESC_LONGTEXT N_( \
74 "This allows you to give a broader description of the stream, that will " \
75 "be announced in the SDP (Session Descriptor)." )
76 #define URL_TEXT N_("Session URL")
77 #define URL_LONGTEXT N_( \
78 "This allows you to give an URL with more details about the stream " \
79 "(often the website of the streaming organization), that will " \
80 "be announced in the SDP (Session Descriptor)." )
81 #define EMAIL_TEXT N_("Session email")
82 #define EMAIL_LONGTEXT N_( \
83 "This allows you to give a contact mail address for the stream, that will " \
84 "be announced in the SDP (Session Descriptor)." )
85 #define PORT_TEXT N_("Port")
86 #define PORT_LONGTEXT N_( \
87 "This allows you to specify the base port for the RTP streaming." )
88 #define PORT_AUDIO_TEXT N_("Audio port")
89 #define PORT_AUDIO_LONGTEXT N_( \
90 "This allows you to specify the default audio port for the RTP streaming." )
91 #define PORT_VIDEO_TEXT N_("Video port")
92 #define PORT_VIDEO_LONGTEXT N_( \
93 "This allows you to specify the default video port for the RTP streaming." )
95 #define TTL_TEXT N_("Hop limit (TTL)")
96 #define TTL_LONGTEXT N_( \
97 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
98 "the multicast packets sent by the stream output (0 = use operating " \
99 "system built-in default).")
101 #define RFC3016_TEXT N_("MP4A LATM")
102 #define RFC3016_LONGTEXT N_( \
103 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
105 static int Open ( vlc_object_t * );
106 static void Close( vlc_object_t * );
108 #define SOUT_CFG_PREFIX "sout-rtp-"
109 #define MAX_EMPTY_BLOCKS 200
112 set_shortname( _("RTP"));
113 set_description( _("RTP stream output") );
114 set_capability( "sout stream", 0 );
115 add_shortcut( "rtp" );
116 set_category( CAT_SOUT );
117 set_subcategory( SUBCAT_SOUT_STREAM );
119 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
120 DST_LONGTEXT, VLC_TRUE );
121 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
122 SDP_LONGTEXT, VLC_TRUE );
123 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
124 MUX_LONGTEXT, VLC_TRUE );
126 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
127 NAME_LONGTEXT, VLC_TRUE );
128 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
129 DESC_LONGTEXT, VLC_TRUE );
130 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
131 URL_LONGTEXT, VLC_TRUE );
132 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
133 EMAIL_LONGTEXT, VLC_TRUE );
135 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
136 PORT_LONGTEXT, VLC_TRUE );
137 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
138 PORT_AUDIO_LONGTEXT, VLC_TRUE );
139 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
140 PORT_VIDEO_LONGTEXT, VLC_TRUE );
142 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
143 TTL_LONGTEXT, VLC_TRUE );
145 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
146 RFC3016_LONGTEXT, VLC_FALSE );
148 set_callbacks( Open, Close );
151 /*****************************************************************************
152 * Exported prototypes
153 *****************************************************************************/
154 static const char *ppsz_sout_options[] = {
155 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
156 "description", "url","email", "mp4a-latm", NULL
159 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
160 static int Del ( sout_stream_t *, sout_stream_id_t * );
161 static int Send( sout_stream_t *, sout_stream_id_t *,
163 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
164 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
165 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
168 static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
169 static void ThreadSend( vlc_object_t *p_this );
171 static void SDPHandleUrl( sout_stream_t *, char * );
173 static int SapSetup( sout_stream_t *p_stream );
174 static int FileSetup( sout_stream_t *p_stream );
175 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
177 struct sout_stream_sys_t
183 vlc_mutex_t lock_sdp;
185 char *psz_session_name;
186 char *psz_session_description;
187 char *psz_session_url;
188 char *psz_session_email;
191 vlc_bool_t b_export_sdp_file;
194 vlc_bool_t b_export_sap;
195 session_descriptor_t *p_session;
197 httpd_host_t *p_httpd_host;
198 httpd_file_t *p_httpd_file;
203 char *psz_destination;
210 /* when need to use a private one or when using muxer */
213 /* in case we do TS/PS over rtp */
215 sout_access_out_t *p_grab;
221 sout_stream_id_t **es;
224 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
227 typedef struct rtp_sink_t
233 struct sout_stream_id_t
237 sout_stream_t *p_stream;
239 uint32_t i_timestamp_start;
241 uint8_t i_payload_type;
252 /* Packetizer specific fields */
253 pf_rtp_packetizer_t pf_packetize;
257 vlc_mutex_t lock_sink;
260 rtsp_stream_id_t *rtsp_id;
262 block_fifo_t *p_fifo;
267 /*****************************************************************************
269 *****************************************************************************/
270 static int Open( vlc_object_t *p_this )
272 sout_stream_t *p_stream = (sout_stream_t*)p_this;
273 sout_instance_t *p_sout = p_stream->p_sout;
274 sout_stream_sys_t *p_sys = NULL;
275 config_chain_t *p_cfg = NULL;
277 vlc_bool_t b_rtsp = VLC_FALSE;
279 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
280 ppsz_sout_options, p_stream->p_cfg );
282 p_sys = malloc( sizeof( sout_stream_sys_t ) );
286 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
287 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
288 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
289 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
290 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
292 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
293 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
294 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
296 p_sys->psz_sdp_file = NULL;
298 if( p_sys->i_port_audio == p_sys->i_port_video )
300 msg_Err( p_stream, "audio and video port cannot be the same" );
301 p_sys->i_port_audio = 0;
302 p_sys->i_port_video = 0;
305 if( !p_sys->psz_session_name )
307 if( p_sys->psz_destination )
308 p_sys->psz_session_name = strdup( p_sys->psz_destination );
310 p_sys->psz_session_name = strdup( "NONE" );
313 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
315 if( !strcmp( p_cfg->psz_name, "sdp" )
316 && ( p_cfg->psz_value != NULL )
317 && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) )
325 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
328 if( !strncasecmp( psz, "rtsp:", 5 ) )
334 if( ( p_sys->psz_destination == NULL ) && !b_rtsp )
336 msg_Err( p_stream, "missing destination and not in RTSP mode" );
341 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
342 if( p_sys->i_ttl == 0 )
344 /* Normally, we should let the default hop limit up to the core,
345 * but we have to know it to build our SDP properly, which is why
346 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
348 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
350 if( p_sys->i_ttl > 255 )
352 /* must not exceed 999 once formatted */
354 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
356 p_sys->i_payload_type = 96;
360 p_sys->psz_sdp = NULL;
362 p_sys->i_sdp_id = mdate();
363 p_sys->i_sdp_version = 1;
364 p_sys->psz_sdp = NULL;
366 p_sys->b_export_sap = VLC_FALSE;
367 p_sys->b_export_sdp_file = VLC_FALSE;
368 p_sys->p_session = NULL;
370 p_sys->p_httpd_host = NULL;
371 p_sys->p_httpd_file = NULL;
373 p_stream->p_sys = p_sys;
375 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
376 vlc_mutex_init( p_stream, &p_sys->lock_es );
378 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
381 sout_stream_id_t *id;
382 const char *psz_rtpmap;
385 /* Check muxer type */
386 if( !strncasecmp( psz, "ps", 2 )
387 || !strncasecmp( psz, "mpeg1", 5 ) )
389 psz_rtpmap = "MP2P/90000";
391 else if( !strncasecmp( psz, "ts", 2 ) )
393 psz_rtpmap = "MP2T/90000";
398 msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" );
400 vlc_mutex_destroy( &p_sys->lock_sdp );
401 vlc_mutex_destroy( &p_sys->lock_es );
406 p_sys->p_grab = GrabberCreate( p_stream );
407 p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab );
410 if( p_sys->p_mux == NULL )
412 msg_Err( p_stream, "cannot create muxer" );
413 sout_AccessOutDelete( p_sys->p_grab );
414 vlc_mutex_destroy( &p_sys->lock_sdp );
415 vlc_mutex_destroy( &p_sys->lock_es );
420 id = Add( p_stream, NULL );
423 sout_MuxDelete( p_sys->p_mux );
424 sout_AccessOutDelete( p_sys->p_grab );
425 vlc_mutex_destroy( &p_sys->lock_sdp );
426 vlc_mutex_destroy( &p_sys->lock_es );
431 id->psz_rtpmap = strdup( psz_rtpmap );
432 id->i_payload_type = i_payload_type;
434 p_sys->packet = NULL;
436 p_stream->pf_add = MuxAdd;
437 p_stream->pf_del = MuxDel;
438 p_stream->pf_send = MuxSend;
443 p_sys->p_grab = NULL;
445 p_stream->pf_add = Add;
446 p_stream->pf_del = Del;
447 p_stream->pf_send = Send;
450 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
453 config_chain_t *p_cfg;
455 SDPHandleUrl( p_stream, psz );
457 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
459 if( !strcmp( p_cfg->psz_name, "sdp" ) )
461 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
464 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
465 if( !strcmp( p_cfg->psz_value, psz ) )
468 SDPHandleUrl( p_stream, p_cfg->psz_value );
474 /* update p_sout->i_out_pace_nocontrol */
475 p_stream->p_sout->i_out_pace_nocontrol++;
480 /*****************************************************************************
482 *****************************************************************************/
483 static void Close( vlc_object_t * p_this )
485 sout_stream_t *p_stream = (sout_stream_t*)p_this;
486 sout_stream_sys_t *p_sys = p_stream->p_sys;
488 /* update p_sout->i_out_pace_nocontrol */
489 p_stream->p_sout->i_out_pace_nocontrol--;
493 assert( p_sys->i_es == 1 );
494 Del( p_stream, p_sys->es[0] );
496 sout_MuxDelete( p_sys->p_mux );
497 sout_AccessOutDelete( p_sys->p_grab );
500 block_Release( p_sys->packet );
502 if( p_sys->b_export_sap )
505 SapSetup( p_stream );
509 if( p_sys->rtsp != NULL )
510 RtspUnsetup( p_sys->rtsp );
512 vlc_mutex_destroy( &p_sys->lock_sdp );
513 vlc_mutex_destroy( &p_sys->lock_es );
515 if( p_sys->p_httpd_file )
516 httpd_FileDelete( p_sys->p_httpd_file );
518 if( p_sys->p_httpd_host )
519 httpd_HostDelete( p_sys->p_httpd_host );
521 free( p_sys->psz_session_name );
522 free( p_sys->psz_session_description );
523 free( p_sys->psz_session_url );
524 free( p_sys->psz_session_email );
525 free( p_sys->psz_sdp );
527 if( p_sys->b_export_sdp_file )
530 unlink( p_sys->psz_sdp_file );
532 free( p_sys->psz_sdp_file );
534 free( p_sys->psz_destination );
538 /*****************************************************************************
540 *****************************************************************************/
541 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
543 sout_stream_sys_t *p_sys = p_stream->p_sys;
546 vlc_UrlParse( &url, psz_url, 0 );
547 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
549 if( p_sys->p_httpd_file )
551 msg_Err( p_stream, "you can use sdp=http:// only once" );
555 if( HttpSetup( p_stream, &url ) )
557 msg_Err( p_stream, "cannot export SDP as HTTP" );
560 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
562 if( p_sys->rtsp != NULL )
564 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
568 /* FIXME test if destination is multicast or no destination at all */
569 p_sys->rtsp = RtspSetup( p_stream, &url );
570 if( p_sys->rtsp == NULL )
572 msg_Err( p_stream, "cannot export SDP as RTSP" );
575 if( p_sys->p_mux != NULL )
577 sout_stream_id_t *id = p_sys->es[0];
578 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0,
579 p_sys->psz_destination, p_sys->i_ttl,
580 id->i_port, id->i_port + 1 );
583 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
584 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
586 p_sys->b_export_sap = VLC_TRUE;
587 SapSetup( p_stream );
589 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
591 if( p_sys->b_export_sdp_file )
593 msg_Err( p_stream, "you can use sdp=file:// only once" );
596 p_sys->b_export_sdp_file = VLC_TRUE;
597 psz_url = &psz_url[5];
598 if( psz_url[0] == '/' && psz_url[1] == '/' )
600 p_sys->psz_sdp_file = strdup( psz_url );
604 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
609 vlc_UrlClean( &url );
612 /*****************************************************************************
614 *****************************************************************************/
615 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
616 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
617 o= - should be local username (no spaces allowed)
618 o= time should be hashed with some other value to garantue uniqueness
619 o= we need IP6 support?
620 o= don't use the localhost address. use fully qualified domain name or IP4 address
621 p= international phone number (pass via vars?)
623 a= recvonly (missing)
624 a= type:broadcast (missing)
625 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
626 a= x-plgroup: (missing)
627 RTP packets need to get the correct src IP address */
629 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
631 const sout_stream_sys_t *p_sys = p_stream->p_sys;
633 const char *psz_destination = p_sys->psz_destination;
634 char *psz_sdp, *p, ipv;
637 * When we have a fixed destination (typically when we do multicast),
638 * we need to put the actual port numbers in the SDP.
639 * When there is no fixed destination, we only support RTSP unicast
640 * on-demand setup, so we should rather let the clients decide which ports
642 * When there is both a fixed destination and RTSP unicast, we need to
643 * put port numbers used by the fixed destination, otherwise the SDP would
644 * become totally incorrect for multicast use. It should be noted that
645 * port numbers from SDP with RTSP are only "recommendation" from the
646 * server to the clients (per RFC2326), so only broken clients will fail
647 * to handle this properly. There is no solution but to use two differents
648 * output chain with two different RTSP URLs if you need to handle this
651 int inclport = (psz_destination != NULL);
653 /* FIXME: breaks IP version check on unknown destination */
654 if( psz_destination == NULL )
655 psz_destination = "0.0.0.0";
657 i_size = sizeof( "v=0\r\n" ) +
658 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
659 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
660 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
661 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
662 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
663 sizeof( "t=0 0\r\n" ) +
664 sizeof( "b=RR:0\r\n" ) +
665 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
666 sizeof( "a=recvonly\r\n" ) +
667 sizeof( "a=type:broadcast\r\n" ) +
668 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
669 strlen( psz_destination ) ;
670 for( i = 0; i < p_sys->i_es; i++ )
672 sout_stream_id_t *id = p_sys->es[i];
674 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
677 i_size += strlen( "b=AS: *\r\n") + 10;
681 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
685 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
687 if( rtsp_url != NULL )
689 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( rtsp_url ) + 10;
693 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
695 p = psz_sdp = malloc( i_size );
696 p += sprintf( p, "v=0\r\n" );
697 p += sprintf( p, "o=- "I64Fu" %d IN IP%c %s\r\n",
698 p_sys->i_sdp_id, p_sys->i_sdp_version,
699 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
700 if( *p_sys->psz_session_name )
701 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
702 if( *p_sys->psz_session_description )
703 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
704 if( *p_sys->psz_session_url )
705 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
706 if( *p_sys->psz_session_email )
707 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
709 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */
710 /* when scheduled from vlm, we should set this info correctly */
711 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
712 p += sprintf( p, "a=recvonly\r\n" );
713 p += sprintf( p, "a=type:broadcast\r\n" );
715 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
718 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
720 /* Add the deprecated TTL field if it is an IPv4 multicast address */
721 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
723 p += sprintf( p, "\r\n" );
724 p += sprintf( p, "b=RR:0\r\n" );
726 for( i = 0; i < p_sys->i_es; i++ )
728 sout_stream_id_t *id = p_sys->es[i];
729 const char *mime_major; /* major MIME type */
731 if( id->i_cat == AUDIO_ES )
732 mime_major = "audio";
734 if( id->i_cat == VIDEO_ES )
735 mime_major = "video";
739 p += sprintf( p, "m=%s %d RTP/AVP %d\r\n", mime_major,
740 inclport * id->i_port, id->i_payload_type );
744 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
748 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
753 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
756 if( rtsp_url != NULL )
758 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
765 /*****************************************************************************
767 *****************************************************************************/
768 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
769 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
770 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
771 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
772 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
773 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
774 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
775 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
776 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
777 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
778 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
780 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
782 static const char hex[16] = "0123456789abcdef";
785 for( i = 0; i < i_data; i++ )
787 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
788 s[2*i+1] = hex[(p_data[i] )&0xf];
794 /** Add an ES as a new RTP stream */
795 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
797 /* NOTE: As a special case, if we use a non-RTP
798 * mux (TS/PS), then p_fmt is NULL. */
799 sout_stream_sys_t *p_sys = p_stream->p_sys;
800 sout_stream_id_t *id;
804 id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) );
808 /* Choose the port */
813 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
815 i_port = p_sys->i_port_audio;
816 p_sys->i_port_audio = 0;
819 if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
821 i_port = p_sys->i_port_video;
822 p_sys->i_port_video = 0;
827 if( p_sys->i_port != p_sys->i_port_audio
828 && p_sys->i_port != p_sys->i_port_video )
830 i_port = p_sys->i_port;
837 id->p_stream = p_stream;
839 id->i_timestamp_start = rand()&0xffffffff;
840 id->i_sequence = rand()&0xffff;
841 id->i_payload_type = p_sys->i_payload_type;
842 id->ssrc[0] = rand()&0xff;
843 id->ssrc[1] = rand()&0xff;
844 id->ssrc[2] = rand()&0xff;
845 id->ssrc[3] = rand()&0xff;
847 id->psz_rtpmap = NULL;
849 id->i_clock_rate = 90000; /* most common case */
853 id->i_cat = p_fmt->i_cat;
854 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
858 id->i_cat = VIDEO_ES;
862 id->pf_packetize = NULL;
863 id->i_mtu = config_GetInt( p_stream, "mtu" );
864 if( id->i_mtu <= 12 + 16 )
865 id->i_mtu = 576 - 20 - 8; /* pessimistic */
867 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
869 vlc_mutex_init( p_stream, &id->lock_sink );
875 (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching");
876 id->p_fifo = block_FifoNew( p_stream );
878 if( vlc_thread_create( id, "RTP send thread", ThreadSend,
879 VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
881 vlc_mutex_destroy( &id->lock_sink );
882 vlc_object_destroy( id );
886 if( p_sys->psz_destination != NULL )
888 int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1;
889 int fd = net_ConnectDgram( p_stream, p_sys->psz_destination,
890 i_port, ttl, IPPROTO_UDP );
894 msg_Err( p_stream, "cannot create RTP socket" );
895 vlc_thread_join( id );
896 vlc_mutex_destroy( &id->lock_sink );
897 vlc_object_destroy( id );
900 rtp_add_sink( id, fd );
906 switch( p_fmt->i_codec )
908 case VLC_FOURCC( 's', '1', '6', 'b' ):
909 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
911 id->i_payload_type = 11;
913 else if( p_fmt->audio.i_channels == 2 &&
914 p_fmt->audio.i_rate == 44100 )
916 id->i_payload_type = 10;
918 if( asprintf( &id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
919 p_fmt->audio.i_channels ) == -1 )
920 id->psz_rtpmap = NULL;
921 id->i_clock_rate = p_fmt->audio.i_rate;
922 id->pf_packetize = rtp_packetize_l16;
924 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
925 if( asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
926 p_fmt->audio.i_channels ) == -1 )
927 id->psz_rtpmap = NULL;
928 id->i_clock_rate = p_fmt->audio.i_rate;
929 id->pf_packetize = rtp_packetize_l8;
931 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
932 id->i_payload_type = 14;
933 id->psz_rtpmap = strdup( "MPA/90000" );
934 id->pf_packetize = rtp_packetize_mpa;
936 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
937 id->i_payload_type = 32;
938 id->psz_rtpmap = strdup( "MPV/90000" );
939 id->pf_packetize = rtp_packetize_mpv;
941 case VLC_FOURCC( 'a', '5', '2', ' ' ):
942 id->psz_rtpmap = strdup( "ac3/90000" );
943 id->pf_packetize = rtp_packetize_ac3;
945 case VLC_FOURCC( 'H', '2', '6', '3' ):
946 id->psz_rtpmap = strdup( "H263-1998/90000" );
947 id->pf_packetize = rtp_packetize_h263;
949 case VLC_FOURCC( 'h', '2', '6', '4' ):
950 id->psz_rtpmap = strdup( "H264/90000" );
951 id->pf_packetize = rtp_packetize_h264;
954 if( p_fmt->i_extra > 0 )
956 uint8_t *p_buffer = p_fmt->p_extra;
957 int i_buffer = p_fmt->i_extra;
958 char *p_64_sps = NULL;
959 char *p_64_pps = NULL;
962 while( i_buffer > 4 &&
963 p_buffer[0] == 0 && p_buffer[1] == 0 &&
964 p_buffer[2] == 0 && p_buffer[3] == 1 )
966 const int i_nal_type = p_buffer[4]&0x1f;
970 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
973 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
975 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
977 /* we found another startcode */
982 if( i_nal_type == 7 )
984 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
985 sprintf_hexa( hexa, &p_buffer[5], 3 );
987 else if( i_nal_type == 8 )
989 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
995 if( p_64_sps && p_64_pps &&
996 ( asprintf( &id->psz_fmtp,
997 "packetization-mode=1;profile-level-id=%s;"
998 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1000 id->psz_fmtp = NULL;
1005 id->psz_fmtp = strdup( "packetization-mode=1" );
1008 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1010 char hexa[2*p_fmt->i_extra +1];
1012 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1013 id->pf_packetize = rtp_packetize_split;
1014 if( p_fmt->i_extra > 0 )
1016 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1017 if( asprintf( &id->psz_fmtp,
1018 "profile-level-id=3; config=%s;", hexa ) == -1 )
1019 id->psz_fmtp = NULL;
1023 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1025 id->i_clock_rate = p_fmt->audio.i_rate;
1029 char hexa[2*p_fmt->i_extra +1];
1031 if( asprintf( &id->psz_rtpmap, "mpeg4-generic/%d",
1032 p_fmt->audio.i_rate ) == -1 )
1033 id->psz_rtpmap = NULL;
1034 id->pf_packetize = rtp_packetize_mp4a;
1035 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1036 if( asprintf( &id->psz_fmtp,
1037 "streamtype=5; profile-level-id=15; "
1038 "mode=AAC-hbr; config=%s; SizeLength=13; "
1039 "IndexLength=3; IndexDeltaLength=3; Profile=1;",
1041 id->psz_fmtp = NULL;
1047 unsigned char config[6];
1048 unsigned int aacsrates[15] = {
1049 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1050 16000, 12000, 11025, 8000, 7350, 0, 0 };
1052 for( i = 0; i < 15; i++ )
1053 if( p_fmt->audio.i_rate == aacsrates[i] )
1059 config[3]=p_fmt->audio.i_channels<<4;
1063 if( asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1064 p_fmt->audio.i_rate,
1065 p_fmt->audio.i_channels ) == -1)
1066 id->psz_rtpmap = NULL;
1067 id->pf_packetize = rtp_packetize_mp4a_latm;
1068 sprintf_hexa( hexa, config, 6 );
1069 if( asprintf( &id->psz_fmtp, "profile-level-id=15; "
1070 "object=2; cpresent=0; config=%s", hexa ) == -1 )
1071 id->psz_fmtp = NULL;
1075 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1076 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1077 "AMR/8000/2" : "AMR/8000" );
1078 id->psz_fmtp = strdup( "octet-align=1" );
1079 id->i_clock_rate = p_fmt->audio.i_rate;
1080 id->pf_packetize = rtp_packetize_amr;
1082 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1083 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1084 "AMR-WB/16000/2" : "AMR-WB/16000" );
1085 id->psz_fmtp = strdup( "octet-align=1" );
1086 id->i_clock_rate = p_fmt->audio.i_rate;
1087 id->pf_packetize = rtp_packetize_amr;
1091 msg_Err( p_stream, "cannot add this stream (unsupported "
1092 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1094 rtp_del_sink( id, id->sinkv[0].rtp_fd );
1095 vlc_thread_join( id );
1096 vlc_mutex_destroy( &id->lock_sink );
1097 vlc_object_destroy( id );
1101 if( id->i_payload_type == p_sys->i_payload_type )
1102 p_sys->i_payload_type++;
1104 if( p_sys->rtsp != NULL )
1105 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1106 p_sys->psz_destination,
1107 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1109 /* Update p_sys context */
1110 vlc_mutex_lock( &p_sys->lock_es );
1111 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1112 vlc_mutex_unlock( &p_sys->lock_es );
1114 psz_sdp = SDPGenerate( p_stream, NULL );
1116 vlc_mutex_lock( &p_sys->lock_sdp );
1117 free( p_sys->psz_sdp );
1118 p_sys->psz_sdp = psz_sdp;
1119 vlc_mutex_unlock( &p_sys->lock_sdp );
1121 p_sys->i_sdp_version++;
1123 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1125 /* Update SDP (sap/file) */
1126 if( p_sys->b_export_sap ) SapSetup( p_stream );
1127 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1129 vlc_object_attach( id, p_stream );
1133 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1135 sout_stream_sys_t *p_sys = p_stream->p_sys;
1137 vlc_object_kill( id );
1139 vlc_mutex_lock( &p_sys->lock_es );
1140 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1141 vlc_mutex_unlock( &p_sys->lock_es );
1144 if( id->i_port > 0 )
1146 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1147 p_sys->i_port_audio = id->i_port;
1148 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1149 p_sys->i_port_video = id->i_port;
1152 free( id->psz_rtpmap );
1153 free( id->psz_fmtp );
1156 RtspDelId( p_sys->rtsp, id->rtsp_id );
1158 rtp_del_sink( id, id->sinkv[0].rtp_fd ); /* sink for explicit dst= */
1160 vlc_thread_join( id );
1161 vlc_mutex_destroy( &id->lock_sink );
1162 block_FifoRelease( id->p_fifo );
1164 /* Update SDP (sap/file) */
1165 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1166 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1168 vlc_object_detach( id );
1169 vlc_object_destroy( id );
1173 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1178 assert( p_stream->p_sys->p_mux == NULL );
1180 while( p_buffer != NULL )
1182 p_next = p_buffer->p_next;
1183 if( id->pf_packetize( p_stream, id, p_buffer ) )
1186 block_Release( p_buffer );
1192 /****************************************************************************
1194 ****************************************************************************/
1195 static int SapSetup( sout_stream_t *p_stream )
1197 sout_stream_sys_t *p_sys = p_stream->p_sys;
1198 sout_instance_t *p_sout = p_stream->p_sout;
1199 announce_method_t *p_method = sout_SAPMethod();
1201 /* Remove the previous session */
1202 if( p_sys->p_session != NULL)
1204 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1205 sout_AnnounceSessionDestroy( p_sys->p_session );
1206 p_sys->p_session = NULL;
1209 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1211 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1213 p_sys->psz_destination,
1217 sout_MethodRelease( p_method );
1221 /****************************************************************************
1223 ****************************************************************************/
1224 static int FileSetup( sout_stream_t *p_stream )
1226 sout_stream_sys_t *p_sys = p_stream->p_sys;
1229 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1231 msg_Err( p_stream, "cannot open file '%s' (%s)",
1232 p_sys->psz_sdp_file, strerror(errno) );
1233 return VLC_EGENERIC;
1236 fputs( p_sys->psz_sdp, f );
1242 /****************************************************************************
1244 ****************************************************************************/
1245 static int HttpCallback( httpd_file_sys_t *p_args,
1246 httpd_file_t *, uint8_t *p_request,
1247 uint8_t **pp_data, int *pi_data );
1249 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1251 sout_stream_sys_t *p_sys = p_stream->p_sys;
1253 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host,
1254 url->i_port > 0 ? url->i_port : 80 );
1255 if( p_sys->p_httpd_host )
1257 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1258 url->psz_path ? url->psz_path : "/",
1261 HttpCallback, (void*)p_sys );
1263 if( p_sys->p_httpd_file == NULL )
1265 return VLC_EGENERIC;
1270 static int HttpCallback( httpd_file_sys_t *p_args,
1271 httpd_file_t *f, uint8_t *p_request,
1272 uint8_t **pp_data, int *pi_data )
1274 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1276 vlc_mutex_lock( &p_sys->lock_sdp );
1277 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1279 *pi_data = strlen( p_sys->psz_sdp );
1280 *pp_data = malloc( *pi_data );
1281 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1288 vlc_mutex_unlock( &p_sys->lock_sdp );
1293 /****************************************************************************
1295 ****************************************************************************/
1296 static void ThreadSend( vlc_object_t *p_this )
1298 sout_stream_id_t *id = (sout_stream_id_t *)p_this;
1299 unsigned i_caching = id->i_caching;
1301 int fd[5] = { -1, -1, -1, -1, -1 };
1309 fd[4] = open( "/dev/null", O_WRONLY );
1314 block_t *out = block_FifoGet( id->p_fifo );
1315 mtime_t i_date = out->i_dts + i_caching;
1316 ssize_t len = out->i_buffer;
1320 len = write( fd[1], out->p_buffer, len);
1322 continue; /* Uho - should not happen */
1326 vlc_mutex_lock( &id->lock_sink );
1327 for( int i = 0; i < id->sinkc; i++ )
1329 SendRTCP( id->sinkv[i].rtcp, out );
1332 tee( fd[0], fd[3], len, 0 );
1333 if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len,
1334 SPLICE_F_NONBLOCK ) >= 0 )
1338 splice( fd[2], NULL, fd[4], NULL, len, 0 );
1340 send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 );
1342 vlc_mutex_unlock( &id->lock_sink );
1344 block_Release( out );
1346 splice( fd[0], NULL, fd[4], NULL, len, 0 );
1351 for( unsigned i = 0; i < 5; i++ )
1356 static inline void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1358 block_FifoPut( id->p_fifo, out );
1361 int rtp_add_sink( sout_stream_id_t *id, int fd )
1363 rtp_sink_t sink = { fd, NULL };
1364 sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP );
1365 if( sink.rtcp == NULL )
1366 msg_Err( id, "RTCP failed!" );
1368 vlc_mutex_lock( &id->lock_sink );
1369 INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink );
1370 vlc_mutex_unlock( &id->lock_sink );
1374 void rtp_del_sink( sout_stream_id_t *id, int fd )
1376 rtp_sink_t sink = { fd, NULL };
1378 /* NOTE: must be safe to use if fd is not included */
1379 vlc_mutex_lock( &id->lock_sink );
1380 for( int i = 0; i < id->sinkc; i++ )
1382 if (id->sinkv[i].rtp_fd == fd)
1384 sink = id->sinkv[i];
1385 REMOVE_ELEM( id->sinkv, id->sinkc, i );
1389 vlc_mutex_unlock( &id->lock_sink );
1391 CloseRTCP( sink.rtcp );
1392 net_Close( sink.rtp_fd );
1395 /****************************************************************************
1397 ****************************************************************************/
1398 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1399 int b_marker, int64_t i_pts )
1401 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1403 out->p_buffer[0] = 0x80;
1404 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1405 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1406 out->p_buffer[3] = ( id->i_sequence )&0xff;
1407 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1408 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1409 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1410 out->p_buffer[7] = ( i_timestamp )&0xff;
1412 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1418 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1421 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1422 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1424 uint8_t *p_data = in->p_buffer;
1425 int i_data = in->i_buffer;
1428 for( i = 0; i < i_count; i++ )
1430 int i_payload = __MIN( i_max, i_data );
1431 block_t *out = block_New( p_stream, 16 + i_payload );
1433 /* rtp common header */
1434 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1436 out->p_buffer[12] = 0;
1437 out->p_buffer[13] = 0;
1438 /* fragment offset in the current frame */
1439 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1440 out->p_buffer[15] = ( (i*i_max) )&0xff;
1441 memcpy( &out->p_buffer[16], p_data, i_payload );
1443 out->i_buffer = 16 + i_payload;
1444 out->i_dts = in->i_dts + i * in->i_length / i_count;
1445 out->i_length = in->i_length / i_count;
1447 rtp_packetize_send( id, out );
1449 p_data += i_payload;
1450 i_data -= i_payload;
1457 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1460 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1461 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1463 uint8_t *p_data = in->p_buffer;
1464 int i_data = in->i_buffer;
1466 int b_sequence_start = 0;
1467 int i_temporal_ref = 0;
1468 int i_picture_coding_type = 0;
1469 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1470 int b_start_slice = 0;
1472 /* preparse this packet to get some info */
1473 if( in->i_buffer > 4 )
1475 uint8_t *p = p_data;
1476 int i_rest = in->i_buffer;
1480 while( i_rest > 4 &&
1481 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1495 /* sequence start code */
1496 b_sequence_start = 1;
1498 else if( *p == 0x00 && i_rest >= 4 )
1501 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1502 i_picture_coding_type = (p[2] >> 3)&0x07;
1504 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1505 i_picture_coding_type == 3 ) )
1507 i_ffv = (p[3] >> 2)&0x01;
1508 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1509 if( i_rest > 4 && i_picture_coding_type == 3 )
1511 i_fbv = (p[4]>>6)&0x01;
1512 i_bfc = (p[4]>>3)&0x07;
1516 else if( *p <= 0xaf )
1523 for( i = 0; i < i_count; i++ )
1525 int i_payload = __MIN( i_max, i_data );
1526 block_t *out = block_New( p_stream,
1528 uint32_t h = ( i_temporal_ref << 16 )|
1529 ( b_sequence_start << 13 )|
1530 ( b_start_slice << 12 )|
1531 ( i == i_count - 1 ? 1 << 11 : 0 )|
1532 ( i_picture_coding_type << 8 )|
1533 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1535 /* rtp common header */
1536 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1537 in->i_pts > 0 ? in->i_pts : in->i_dts );
1539 /* 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 */
1540 out->p_buffer[12] = ( h >> 24 )&0xff;
1541 out->p_buffer[13] = ( h >> 16 )&0xff;
1542 out->p_buffer[14] = ( h >> 8 )&0xff;
1543 out->p_buffer[15] = ( h )&0xff;
1545 memcpy( &out->p_buffer[16], p_data, i_payload );
1547 out->i_buffer = 16 + i_payload;
1548 out->i_dts = in->i_dts + i * in->i_length / i_count;
1549 out->i_length = in->i_length / i_count;
1551 rtp_packetize_send( id, out );
1553 p_data += i_payload;
1554 i_data -= i_payload;
1560 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1563 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1564 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1566 uint8_t *p_data = in->p_buffer;
1567 int i_data = in->i_buffer;
1570 for( i = 0; i < i_count; i++ )
1572 int i_payload = __MIN( i_max, i_data );
1573 block_t *out = block_New( p_stream, 14 + i_payload );
1575 /* rtp common header */
1576 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1578 out->p_buffer[12] = 1;
1580 out->p_buffer[13] = 0x00;
1582 memcpy( &out->p_buffer[14], p_data, i_payload );
1584 out->i_buffer = 14 + i_payload;
1585 out->i_dts = in->i_dts + i * in->i_length / i_count;
1586 out->i_length = in->i_length / i_count;
1588 rtp_packetize_send( id, out );
1590 p_data += i_payload;
1591 i_data -= i_payload;
1597 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1600 int i_max = id->i_mtu - 12; /* payload max in one packet */
1601 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1603 uint8_t *p_data = in->p_buffer;
1604 int i_data = in->i_buffer;
1607 for( i = 0; i < i_count; i++ )
1609 int i_payload = __MIN( i_max, i_data );
1610 block_t *out = block_New( p_stream, 12 + i_payload );
1612 /* rtp common header */
1613 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1614 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1615 memcpy( &out->p_buffer[12], p_data, i_payload );
1617 out->i_buffer = 12 + i_payload;
1618 out->i_dts = in->i_dts + i * in->i_length / i_count;
1619 out->i_length = in->i_length / i_count;
1621 rtp_packetize_send( id, out );
1623 p_data += i_payload;
1624 i_data -= i_payload;
1631 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1634 int i_max = id->i_mtu - 14; /* payload max in one packet */
1635 int latmhdrsize = in->i_buffer / 0xff + 1;
1636 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1638 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1639 int i_data = in->i_buffer;
1642 for( i = 0; i < i_count; i++ )
1644 int i_payload = __MIN( i_max, i_data );
1649 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1651 /* rtp common header */
1652 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1653 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1657 int tmp = in->i_buffer;
1659 p_header=out->p_buffer+12;
1669 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1671 out->i_buffer = 12 + latmhdrsize + i_payload;
1672 out->i_dts = in->i_dts + i * in->i_length / i_count;
1673 out->i_length = in->i_length / i_count;
1675 rtp_packetize_send( id, out );
1677 p_data += i_payload;
1678 i_data -= i_payload;
1684 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1687 int i_max = id->i_mtu - 12; /* payload max in one packet */
1688 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1690 uint8_t *p_data = in->p_buffer;
1691 int i_data = in->i_buffer;
1696 int i_payload = (__MIN( i_max, i_data )/4)*4;
1697 block_t *out = block_New( p_stream, 12 + i_payload );
1699 /* rtp common header */
1700 rtp_packetize_common( id, out, 0,
1701 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1702 memcpy( &out->p_buffer[12], p_data, i_payload );
1704 out->i_buffer = 12 + i_payload;
1705 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1706 out->i_length = in->i_length / i_count;
1708 rtp_packetize_send( id, out );
1710 p_data += i_payload;
1711 i_data -= i_payload;
1718 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1721 int i_max = id->i_mtu - 12; /* payload max in one packet */
1722 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1724 uint8_t *p_data = in->p_buffer;
1725 int i_data = in->i_buffer;
1730 int i_payload = (__MIN( i_max, i_data )/2)*2;
1731 block_t *out = block_New( p_stream, 12 + i_payload );
1733 /* rtp common header */
1734 rtp_packetize_common( id, out, 0,
1735 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1736 memcpy( &out->p_buffer[12], p_data, i_payload );
1738 out->i_buffer = 12 + i_payload;
1739 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1740 out->i_length = in->i_length / i_count;
1742 rtp_packetize_send( id, out );
1744 p_data += i_payload;
1745 i_data -= i_payload;
1752 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1755 int i_max = id->i_mtu - 16; /* payload max in one packet */
1756 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1758 uint8_t *p_data = in->p_buffer;
1759 int i_data = in->i_buffer;
1762 for( i = 0; i < i_count; i++ )
1764 int i_payload = __MIN( i_max, i_data );
1765 block_t *out = block_New( p_stream, 16 + i_payload );
1767 /* rtp common header */
1768 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1769 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1771 /* AU headers length (bits) */
1772 out->p_buffer[12] = 0;
1773 out->p_buffer[13] = 2*8;
1774 /* for each AU length 13 bits + idx 3bits, */
1775 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1776 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1778 memcpy( &out->p_buffer[16], p_data, i_payload );
1780 out->i_buffer = 16 + i_payload;
1781 out->i_dts = in->i_dts + i * in->i_length / i_count;
1782 out->i_length = in->i_length / i_count;
1784 rtp_packetize_send( id, out );
1786 p_data += i_payload;
1787 i_data -= i_payload;
1795 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1796 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1797 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1800 uint8_t *p_data = in->p_buffer;
1801 int i_data = in->i_buffer;
1803 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1806 int b_v_bit = 0; // no pesky error resilience
1807 int i_plen = 0; // normally plen=0 for PSC packet
1808 int i_pebit = 0; // because plen=0
1813 return VLC_EGENERIC;
1815 if( p_data[0] || p_data[1] )
1817 return VLC_EGENERIC;
1819 /* remove 2 leading 0 bytes */
1822 i_count = ( i_data + i_max - 1 ) / i_max;
1824 for( i = 0; i < i_count; i++ )
1826 int i_payload = __MIN( i_max, i_data );
1827 block_t *out = block_New( p_stream,
1828 RTP_H263_PAYLOAD_START + i_payload );
1829 b_p_bit = (i == 0) ? 1 : 0;
1830 h = ( b_p_bit << 10 )|
1835 /* rtp common header */
1836 //b_m_bit = 1; // always contains end of frame
1837 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1838 in->i_pts > 0 ? in->i_pts : in->i_dts );
1841 out->p_buffer[12] = ( h >> 8 )&0xff;
1842 out->p_buffer[13] = ( h )&0xff;
1843 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1845 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1846 out->i_dts = in->i_dts + i * in->i_length / i_count;
1847 out->i_length = in->i_length / i_count;
1849 rtp_packetize_send( id, out );
1851 p_data += i_payload;
1852 i_data -= i_payload;
1860 rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1861 const uint8_t *p_data, int i_data, int64_t i_pts,
1862 int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1864 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1871 i_nal_hdr = p_data[3];
1872 i_nal_type = i_nal_hdr&0x1f;
1874 /* Skip start code */
1879 if( i_data <= i_max )
1881 /* Single NAL unit packet */
1882 block_t *out = block_New( p_stream, 12 + i_data );
1884 out->i_length = i_length;
1887 rtp_packetize_common( id, out, b_last, i_pts );
1888 out->i_buffer = 12 + i_data;
1890 memcpy( &out->p_buffer[12], p_data, i_data );
1892 rtp_packetize_send( id, out );
1896 /* FU-A Fragmentation Unit without interleaving */
1897 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1903 for( i = 0; i < i_count; i++ )
1905 const int i_payload = __MIN( i_data, i_max-2 );
1906 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1907 out->i_dts = i_dts + i * i_length / i_count;
1908 out->i_length = i_length / i_count;
1911 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1912 out->i_buffer = 14 + i_payload;
1915 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1917 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1918 memcpy( &out->p_buffer[14], p_data, i_payload );
1920 rtp_packetize_send( id, out );
1922 i_data -= i_payload;
1923 p_data += i_payload;
1929 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1932 const uint8_t *p_buffer = in->p_buffer;
1933 int i_buffer = in->i_buffer;
1935 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
1941 /* Split nal units */
1942 while( i_buffer > 4 )
1945 int i_size = i_buffer;
1946 int i_skip = i_buffer;
1948 /* search nal end */
1949 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
1951 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
1953 /* we found another startcode */
1954 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
1959 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
1960 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
1961 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
1962 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
1970 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
1973 int i_max = id->i_mtu - 14; /* payload max in one packet */
1974 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1976 uint8_t *p_data = in->p_buffer;
1977 int i_data = in->i_buffer;
1980 /* Only supports octet-aligned mode */
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, 14 + i_payload );
1986 /* rtp common header */
1987 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1988 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1989 /* Payload header */
1990 out->p_buffer[12] = 0xF0; /* CMR */
1991 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
1993 /* FIXME: are we fed multiple frames ? */
1994 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
1996 out->i_buffer = 14 + i_payload-1;
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;
2009 /*****************************************************************************
2011 *****************************************************************************/
2013 /** Add an ES to a non-RTP muxed stream */
2014 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
2016 sout_input_t *p_input;
2017 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2018 assert( p_mux != NULL );
2020 p_input = sout_MuxAddStream( p_mux, p_fmt );
2021 if( p_input == NULL )
2023 msg_Err( p_stream, "cannot add this stream to the muxer" );
2027 return (sout_stream_id_t *)p_input;
2031 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
2034 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2035 assert( p_mux != NULL );
2037 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
2042 /** Remove an ES from a non-RTP muxed stream */
2043 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
2045 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2046 assert( p_mux != NULL );
2048 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
2053 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
2054 const block_t *p_buffer )
2056 sout_stream_sys_t *p_sys = p_stream->p_sys;
2057 sout_stream_id_t *id = p_sys->es[0];
2059 int64_t i_dts = p_buffer->i_dts;
2061 uint8_t *p_data = p_buffer->p_buffer;
2062 unsigned int i_data = p_buffer->i_buffer;
2063 unsigned int i_max = id->i_mtu - 12;
2065 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
2069 unsigned int i_size;
2071 /* output complete packet */
2072 if( p_sys->packet &&
2073 p_sys->packet->i_buffer + i_data > i_max )
2075 rtp_packetize_send( id, p_sys->packet );
2076 p_sys->packet = NULL;
2079 if( p_sys->packet == NULL )
2081 /* allocate a new packet */
2082 p_sys->packet = block_New( p_stream, id->i_mtu );
2083 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
2084 p_sys->packet->i_dts = i_dts;
2085 p_sys->packet->i_length = p_buffer->i_length / i_packet;
2086 i_dts += p_sys->packet->i_length;
2089 i_size = __MIN( i_data,
2090 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
2092 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
2095 p_sys->packet->i_buffer += i_size;
2104 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
2107 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
2113 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
2115 p_next = p_buffer->p_next;
2116 block_Release( p_buffer );
2124 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
2126 sout_access_out_t *p_grab;
2128 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
2129 if( p_grab == NULL )
2132 p_grab->p_module = NULL;
2133 p_grab->p_sout = p_stream->p_sout;
2134 p_grab->psz_access = strdup( "grab" );
2135 p_grab->p_cfg = NULL;
2136 p_grab->psz_path = strdup( "" );
2137 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
2138 p_grab->pf_seek = NULL;
2139 p_grab->pf_write = AccessOutGrabberWrite;