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>
47 #ifdef HAVE_LINUX_DCCP_H
48 # include <linux/dccp.h>
51 # define IPPROTO_DCCP 33
53 #ifndef IPPROTO_UDPLITE
54 # define IPPROTO_UDPLITE 136
59 /*****************************************************************************
61 *****************************************************************************/
63 #define DST_TEXT N_("Destination")
64 #define DST_LONGTEXT N_( \
65 "This is the output URL that will be used." )
66 #define SDP_TEXT N_("SDP")
67 #define SDP_LONGTEXT N_( \
68 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
69 "session will be made available. You must use an url: http://location to " \
70 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
71 "for the SDP to be announced via SAP." )
72 #define MUX_TEXT N_("Muxer")
73 #define MUX_LONGTEXT N_( \
74 "This allows you to specify the muxer used for the streaming output. " \
75 "Default is to use no muxer (standard RTP stream)." )
77 #define NAME_TEXT N_("Session name")
78 #define NAME_LONGTEXT N_( \
79 "This is the name of the session that will be announced in the SDP " \
80 "(Session Descriptor)." )
81 #define DESC_TEXT N_("Session descriptipn")
82 #define DESC_LONGTEXT N_( \
83 "This allows you to give a short description with details about the stream, " \
84 "that will be announced in the SDP (Session Descriptor)." )
85 #define URL_TEXT N_("Session URL")
86 #define URL_LONGTEXT N_( \
87 "This allows you to give an URL with more details about the stream " \
88 "(often the website of the streaming organization), that will " \
89 "be announced in the SDP (Session Descriptor)." )
90 #define EMAIL_TEXT N_("Session email")
91 #define EMAIL_LONGTEXT N_( \
92 "This allows you to give a contact mail address for the stream, that will " \
93 "be announced in the SDP (Session Descriptor)." )
94 #define PHONE_TEXT N_("Session phone number")
95 #define PHONE_LONGTEXT N_( \
96 "This allows you to give a contact telephone number for the stream, that will " \
97 "be announced in the SDP (Session Descriptor)." )
99 #define PORT_TEXT N_("Port")
100 #define PORT_LONGTEXT N_( \
101 "This allows you to specify the base port for the RTP streaming." )
102 #define PORT_AUDIO_TEXT N_("Audio port")
103 #define PORT_AUDIO_LONGTEXT N_( \
104 "This allows you to specify the default audio port for the RTP streaming." )
105 #define PORT_VIDEO_TEXT N_("Video port")
106 #define PORT_VIDEO_LONGTEXT N_( \
107 "This allows you to specify the default video port for the RTP streaming." )
109 #define TTL_TEXT N_("Hop limit (TTL)")
110 #define TTL_LONGTEXT N_( \
111 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
112 "the multicast packets sent by the stream output (0 = use operating " \
113 "system built-in default).")
115 #define DCCP_TEXT N_("DCCP transport")
116 #define DCCP_LONGTEXT N_( \
117 "This enables DCCP instead of UDP as a transport for RTP." )
118 #define TCP_TEXT N_("TCP transport")
119 #define TCP_LONGTEXT N_( \
120 "This enables TCP instead of UDP as a transport for RTP." )
121 #define UDP_LITE_TEXT N_("UDP-Lite transport")
122 #define UDP_LITE_LONGTEXT N_( \
123 "This enables UDP-Lite instead of UDP as a transport for RTP." )
125 #define RFC3016_TEXT N_("MP4A LATM")
126 #define RFC3016_LONGTEXT N_( \
127 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
129 static int Open ( vlc_object_t * );
130 static void Close( vlc_object_t * );
132 #define SOUT_CFG_PREFIX "sout-rtp-"
133 #define MAX_EMPTY_BLOCKS 200
136 set_shortname( _("RTP"));
137 set_description( _("RTP stream output") );
138 set_capability( "sout stream", 0 );
139 add_shortcut( "rtp" );
140 set_category( CAT_SOUT );
141 set_subcategory( SUBCAT_SOUT_STREAM );
143 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
144 DST_LONGTEXT, VLC_TRUE );
145 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
146 SDP_LONGTEXT, VLC_TRUE );
147 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
148 MUX_LONGTEXT, VLC_TRUE );
150 add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT,
151 NAME_LONGTEXT, VLC_TRUE );
152 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
153 DESC_LONGTEXT, VLC_TRUE );
154 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
155 URL_LONGTEXT, VLC_TRUE );
156 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
157 EMAIL_LONGTEXT, VLC_TRUE );
158 add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT,
159 PHONE_LONGTEXT, VLC_TRUE );
161 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
162 PORT_LONGTEXT, VLC_TRUE );
163 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
164 PORT_AUDIO_LONGTEXT, VLC_TRUE );
165 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
166 PORT_VIDEO_LONGTEXT, VLC_TRUE );
168 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
169 TTL_LONGTEXT, VLC_TRUE );
171 add_bool( SOUT_CFG_PREFIX "dccp", 0, NULL,
172 DCCP_TEXT, DCCP_LONGTEXT, VLC_FALSE );
173 add_bool( SOUT_CFG_PREFIX "tcp", 0, NULL,
174 TCP_TEXT, TCP_LONGTEXT, VLC_FALSE );
175 add_bool( SOUT_CFG_PREFIX "udplite", 0, NULL,
176 UDP_LITE_TEXT, UDP_LITE_LONGTEXT, VLC_FALSE );
178 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
179 RFC3016_LONGTEXT, VLC_FALSE );
181 set_callbacks( Open, Close );
184 /*****************************************************************************
185 * Exported prototypes
186 *****************************************************************************/
187 static const char *ppsz_sout_options[] = {
188 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
189 "description", "url", "email", "phone",
190 "dccp", "tcp", "udplite",
194 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
195 static int Del ( sout_stream_t *, sout_stream_id_t * );
196 static int Send( sout_stream_t *, sout_stream_id_t *,
198 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
199 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
200 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
203 static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
204 static void ThreadSend( vlc_object_t *p_this );
206 static void SDPHandleUrl( sout_stream_t *, char * );
208 static int SapSetup( sout_stream_t *p_stream );
209 static int FileSetup( sout_stream_t *p_stream );
210 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
212 struct sout_stream_sys_t
216 vlc_mutex_t lock_sdp;
219 vlc_bool_t b_export_sdp_file;
223 vlc_bool_t b_export_sap;
224 session_descriptor_t *p_session;
227 httpd_host_t *p_httpd_host;
228 httpd_file_t *p_httpd_file;
234 char *psz_destination;
238 uint16_t i_port_audio;
239 uint16_t i_port_video;
242 /* when need to use a private one or when using muxer */
245 /* in case we do TS/PS over rtp */
247 sout_access_out_t *p_grab;
253 sout_stream_id_t **es;
256 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
259 typedef struct rtp_sink_t
265 struct sout_stream_id_t
269 sout_stream_t *p_stream;
271 uint32_t i_timestamp_start;
273 uint8_t i_payload_type;
284 /* Packetizer specific fields */
285 pf_rtp_packetizer_t pf_packetize;
289 vlc_mutex_t lock_sink;
292 rtsp_stream_id_t *rtsp_id;
295 block_fifo_t *p_fifo;
300 /*****************************************************************************
302 *****************************************************************************/
303 static int Open( vlc_object_t *p_this )
305 sout_stream_t *p_stream = (sout_stream_t*)p_this;
306 sout_instance_t *p_sout = p_stream->p_sout;
307 sout_stream_sys_t *p_sys = NULL;
308 config_chain_t *p_cfg = NULL;
310 vlc_bool_t b_rtsp = VLC_FALSE;
312 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
313 ppsz_sout_options, p_stream->p_cfg );
315 p_sys = malloc( sizeof( sout_stream_sys_t ) );
319 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
321 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
322 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
323 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
325 p_sys->psz_sdp_file = NULL;
327 if( p_sys->i_port_audio == p_sys->i_port_video )
329 msg_Err( p_stream, "audio and video port cannot be the same" );
330 p_sys->i_port_audio = 0;
331 p_sys->i_port_video = 0;
334 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
336 if( !strcmp( p_cfg->psz_name, "sdp" )
337 && ( p_cfg->psz_value != NULL )
338 && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) )
346 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
349 if( !strncasecmp( psz, "rtsp:", 5 ) )
355 /* Transport protocol */
356 p_sys->proto = IPPROTO_UDP;
358 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "dccp" ) )
360 p_sys->proto = IPPROTO_DCCP;
364 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "tcp" ) )
366 p_sys->proto = IPPROTO_TCP;
370 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "udplite" ) )
371 p_sys->proto = IPPROTO_UDPLITE;
373 if( ( p_sys->psz_destination == NULL ) && !b_rtsp )
375 msg_Err( p_stream, "missing destination and not in RTSP mode" );
380 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
381 if( p_sys->i_ttl == 0 )
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 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
390 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
392 p_sys->i_payload_type = 96;
396 p_sys->psz_sdp = NULL;
398 p_sys->b_export_sap = VLC_FALSE;
399 p_sys->b_export_sdp_file = VLC_FALSE;
400 p_sys->p_session = NULL;
402 p_sys->p_httpd_host = NULL;
403 p_sys->p_httpd_file = NULL;
405 p_stream->p_sys = p_sys;
407 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
408 vlc_mutex_init( p_stream, &p_sys->lock_es );
410 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
413 sout_stream_id_t *id;
415 /* Check muxer type */
416 if( strncasecmp( psz, "ps", 2 )
417 && strncasecmp( psz, "mpeg1", 5 )
418 && strncasecmp( psz, "ts", 2 ) )
420 msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" );
422 vlc_mutex_destroy( &p_sys->lock_sdp );
423 vlc_mutex_destroy( &p_sys->lock_es );
428 p_sys->p_grab = GrabberCreate( p_stream );
429 p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab );
432 if( p_sys->p_mux == NULL )
434 msg_Err( p_stream, "cannot create muxer" );
435 sout_AccessOutDelete( p_sys->p_grab );
436 vlc_mutex_destroy( &p_sys->lock_sdp );
437 vlc_mutex_destroy( &p_sys->lock_es );
442 id = Add( p_stream, NULL );
445 sout_MuxDelete( p_sys->p_mux );
446 sout_AccessOutDelete( p_sys->p_grab );
447 vlc_mutex_destroy( &p_sys->lock_sdp );
448 vlc_mutex_destroy( &p_sys->lock_es );
453 p_sys->packet = NULL;
455 p_stream->pf_add = MuxAdd;
456 p_stream->pf_del = MuxDel;
457 p_stream->pf_send = MuxSend;
462 p_sys->p_grab = NULL;
464 p_stream->pf_add = Add;
465 p_stream->pf_del = Del;
466 p_stream->pf_send = Send;
469 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
472 config_chain_t *p_cfg;
474 SDPHandleUrl( p_stream, psz );
476 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
478 if( !strcmp( p_cfg->psz_name, "sdp" ) )
480 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
483 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
484 if( !strcmp( p_cfg->psz_value, psz ) )
487 SDPHandleUrl( p_stream, p_cfg->psz_value );
493 /* update p_sout->i_out_pace_nocontrol */
494 p_stream->p_sout->i_out_pace_nocontrol++;
499 /*****************************************************************************
501 *****************************************************************************/
502 static void Close( vlc_object_t * p_this )
504 sout_stream_t *p_stream = (sout_stream_t*)p_this;
505 sout_stream_sys_t *p_sys = p_stream->p_sys;
507 /* update p_sout->i_out_pace_nocontrol */
508 p_stream->p_sout->i_out_pace_nocontrol--;
512 assert( p_sys->i_es == 1 );
513 Del( p_stream, p_sys->es[0] );
515 sout_MuxDelete( p_sys->p_mux );
516 sout_AccessOutDelete( p_sys->p_grab );
519 block_Release( p_sys->packet );
521 if( p_sys->b_export_sap )
524 SapSetup( p_stream );
528 if( p_sys->rtsp != NULL )
529 RtspUnsetup( p_sys->rtsp );
531 vlc_mutex_destroy( &p_sys->lock_sdp );
532 vlc_mutex_destroy( &p_sys->lock_es );
534 if( p_sys->p_httpd_file )
535 httpd_FileDelete( p_sys->p_httpd_file );
537 if( p_sys->p_httpd_host )
538 httpd_HostDelete( p_sys->p_httpd_host );
540 free( p_sys->psz_sdp );
542 if( p_sys->b_export_sdp_file )
545 unlink( p_sys->psz_sdp_file );
547 free( p_sys->psz_sdp_file );
549 free( p_sys->psz_destination );
553 /*****************************************************************************
555 *****************************************************************************/
556 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
558 sout_stream_sys_t *p_sys = p_stream->p_sys;
561 vlc_UrlParse( &url, psz_url, 0 );
562 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
564 if( p_sys->p_httpd_file )
566 msg_Err( p_stream, "you can use sdp=http:// only once" );
570 if( HttpSetup( p_stream, &url ) )
572 msg_Err( p_stream, "cannot export SDP as HTTP" );
575 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
577 if( p_sys->rtsp != NULL )
579 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
583 /* FIXME test if destination is multicast or no destination at all */
584 p_sys->rtsp = RtspSetup( p_stream, &url );
585 if( p_sys->rtsp == NULL )
587 msg_Err( p_stream, "cannot export SDP as RTSP" );
590 if( p_sys->p_mux != NULL )
592 sout_stream_id_t *id = p_sys->es[0];
593 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0,
594 p_sys->psz_destination, p_sys->i_ttl,
595 id->i_port, id->i_port + 1 );
598 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
599 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
601 p_sys->b_export_sap = VLC_TRUE;
602 SapSetup( p_stream );
604 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
606 if( p_sys->b_export_sdp_file )
608 msg_Err( p_stream, "you can use sdp=file:// only once" );
611 p_sys->b_export_sdp_file = VLC_TRUE;
612 psz_url = &psz_url[5];
613 if( psz_url[0] == '/' && psz_url[1] == '/' )
615 p_sys->psz_sdp_file = strdup( psz_url );
619 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
624 vlc_UrlClean( &url );
627 /*****************************************************************************
629 *****************************************************************************/
631 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
633 const sout_stream_sys_t *p_sys = p_stream->p_sys;
635 struct sockaddr_storage dst;
639 * When we have a fixed destination (typically when we do multicast),
640 * we need to put the actual port numbers in the SDP.
641 * When there is no fixed destination, we only support RTSP unicast
642 * on-demand setup, so we should rather let the clients decide which ports
644 * When there is both a fixed destination and RTSP unicast, we need to
645 * put port numbers used by the fixed destination, otherwise the SDP would
646 * become totally incorrect for multicast use. It should be noted that
647 * port numbers from SDP with RTSP are only "recommendation" from the
648 * server to the clients (per RFC2326), so only broken clients will fail
649 * to handle this properly. There is no solution but to use two differents
650 * output chain with two different RTSP URLs if you need to handle this
655 if( p_sys->psz_destination != NULL )
659 /* Oh boy, this is really ugly! (+ race condition on lock_es) */
660 dstlen = sizeof( dst );
661 if( p_sys->es[0]->listen_fd != NULL )
662 getsockname( p_sys->es[0]->listen_fd[0],
663 (struct sockaddr *)&dst, &dstlen );
665 getpeername( p_sys->es[0]->sinkv[0].rtp_fd,
666 (struct sockaddr *)&dst, &dstlen );
672 /* Dummy destination address for RTSP */
673 memset (&dst, 0, sizeof( struct sockaddr_in ) );
674 dst.ss_family = AF_INET;
678 dstlen = sizeof( struct sockaddr_in );
681 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_stream ), SOUT_CFG_PREFIX,
682 NULL, 0, (struct sockaddr *)&dst, dstlen );
683 if( psz_sdp == NULL )
686 /* TODO: a=source-filter */
688 if( rtsp_url != NULL )
689 sdp_AddAttribute ( &psz_sdp, "control", "%s", rtsp_url );
691 /* FIXME: locking?! */
692 for( i = 0; i < p_sys->i_es; i++ )
694 sout_stream_id_t *id = p_sys->es[i];
695 const char *mime_major; /* major MIME type */
696 const char *proto = "RTP/AVP"; /* protocol */
697 const char *scode; /* DCCP service code */
702 mime_major = "video";
706 mime_major = "audio";
714 mime_major = "application";
719 if( rtsp_url == NULL )
721 switch( p_sys->proto )
726 proto = "TCP/RTP/AVP";
729 proto = "DCCP/RTP/AVP";
731 case IPPROTO_UDPLITE:
736 sdp_AddMedia( &psz_sdp, mime_major, proto, inclport * id->i_port,
737 id->i_payload_type, VLC_FALSE, id->i_bitrate,
738 id->psz_rtpmap, id->psz_fmtp);
740 if( rtsp_url != NULL )
742 assert( strlen( rtsp_url ) > 0 );
743 vlc_bool_t addslash = ( rtsp_url[strlen( rtsp_url ) - 1] != '/' );
744 sdp_AddAttribute ( &psz_sdp, "control",
745 addslash ? "%s/trackID=%u" : "%strackID=%u",
750 if( id->listen_fd != NULL )
751 sdp_AddAttribute( &psz_sdp, "setup", "passive" );
752 if( p_sys->proto == IPPROTO_DCCP )
753 sdp_AddAttribute( &psz_sdp, "dccp-service-code", scode );
760 /*****************************************************************************
762 *****************************************************************************/
763 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
764 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
765 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
766 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
767 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
768 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
769 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
770 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
771 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
772 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
773 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
774 static int rtp_packetize_t140 ( sout_stream_t *, sout_stream_id_t *, block_t * );
776 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
778 static const char hex[16] = "0123456789abcdef";
781 for( i = 0; i < i_data; i++ )
783 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
784 s[2*i+1] = hex[(p_data[i] )&0xf];
790 /** Add an ES as a new RTP stream */
791 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
793 /* NOTE: As a special case, if we use a non-RTP
794 * mux (TS/PS), then p_fmt is NULL. */
795 sout_stream_sys_t *p_sys = p_stream->p_sys;
796 sout_stream_id_t *id;
797 int i_port, cscov = -1;
800 id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) );
803 vlc_object_attach( id, p_stream );
805 /* Choose the port */
810 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
812 i_port = p_sys->i_port_audio;
813 p_sys->i_port_audio = 0;
816 if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
818 i_port = p_sys->i_port_video;
819 p_sys->i_port_video = 0;
824 if( p_sys->i_port != p_sys->i_port_audio
825 && p_sys->i_port != p_sys->i_port_video )
827 i_port = p_sys->i_port;
834 id->p_stream = p_stream;
836 id->i_timestamp_start = rand()&0xffffffff;
837 id->i_sequence = rand()&0xffff;
838 id->i_payload_type = p_sys->i_payload_type;
839 id->ssrc[0] = rand()&0xff;
840 id->ssrc[1] = rand()&0xff;
841 id->ssrc[2] = rand()&0xff;
842 id->ssrc[3] = rand()&0xff;
844 id->psz_rtpmap = NULL;
846 id->i_clock_rate = 90000; /* most common case */
850 id->i_cat = p_fmt->i_cat;
851 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
855 id->i_cat = VIDEO_ES;
859 id->pf_packetize = NULL;
860 id->i_mtu = config_GetInt( p_stream, "mtu" );
861 if( id->i_mtu <= 12 + 16 )
862 id->i_mtu = 576 - 20 - 8; /* pessimistic */
864 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
866 vlc_mutex_init( p_stream, &id->lock_sink );
871 id->listen_fd = NULL;
874 (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching");
876 if( p_sys->psz_destination != NULL )
877 switch( p_sys->proto )
881 id->listen_fd = net_Listen( VLC_OBJECT(p_stream),
882 p_sys->psz_destination, i_port,
884 if( id->listen_fd == NULL )
886 msg_Err( p_stream, "passive COMEDIA RTP socket failed" );
893 int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1;
894 int fd = net_ConnectDgram( p_stream, p_sys->psz_destination,
895 i_port, ttl, p_sys->proto );
898 msg_Err( p_stream, "cannot create RTP socket" );
901 rtp_add_sink( id, fd );
907 char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
909 if( psz == NULL ) /* Uho! */
912 if( strncmp( psz, "ts", 2 ) == 0 )
914 id->i_payload_type = 33;
915 id->psz_rtpmap = strdup( "MP2T/90000" );
919 id->psz_rtpmap = strdup( "MP2P/90000" );
923 switch( p_fmt->i_codec )
925 case VLC_FOURCC( 's', '1', '6', 'b' ):
926 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
928 id->i_payload_type = 11;
930 else if( p_fmt->audio.i_channels == 2 &&
931 p_fmt->audio.i_rate == 44100 )
933 id->i_payload_type = 10;
935 if( asprintf( &id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
936 p_fmt->audio.i_channels ) == -1 )
937 id->psz_rtpmap = NULL;
938 id->i_clock_rate = p_fmt->audio.i_rate;
939 id->pf_packetize = rtp_packetize_l16;
941 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
942 if( asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
943 p_fmt->audio.i_channels ) == -1 )
944 id->psz_rtpmap = NULL;
945 id->i_clock_rate = p_fmt->audio.i_rate;
946 id->pf_packetize = rtp_packetize_l8;
948 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
949 id->i_payload_type = 14;
950 id->psz_rtpmap = strdup( "MPA/90000" );
951 id->pf_packetize = rtp_packetize_mpa;
953 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
954 id->i_payload_type = 32;
955 id->psz_rtpmap = strdup( "MPV/90000" );
956 id->pf_packetize = rtp_packetize_mpv;
958 case VLC_FOURCC( 'a', '5', '2', ' ' ):
959 id->psz_rtpmap = strdup( "ac3/90000" );
960 id->pf_packetize = rtp_packetize_ac3;
962 case VLC_FOURCC( 'H', '2', '6', '3' ):
963 id->psz_rtpmap = strdup( "H263-1998/90000" );
964 id->pf_packetize = rtp_packetize_h263;
966 case VLC_FOURCC( 'h', '2', '6', '4' ):
967 id->psz_rtpmap = strdup( "H264/90000" );
968 id->pf_packetize = rtp_packetize_h264;
971 if( p_fmt->i_extra > 0 )
973 uint8_t *p_buffer = p_fmt->p_extra;
974 int i_buffer = p_fmt->i_extra;
975 char *p_64_sps = NULL;
976 char *p_64_pps = NULL;
979 while( i_buffer > 4 &&
980 p_buffer[0] == 0 && p_buffer[1] == 0 &&
981 p_buffer[2] == 0 && p_buffer[3] == 1 )
983 const int i_nal_type = p_buffer[4]&0x1f;
987 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
990 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
992 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
994 /* we found another startcode */
999 if( i_nal_type == 7 )
1001 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1002 sprintf_hexa( hexa, &p_buffer[5], 3 );
1004 else if( i_nal_type == 8 )
1006 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1012 if( p_64_sps && p_64_pps &&
1013 ( asprintf( &id->psz_fmtp,
1014 "packetization-mode=1;profile-level-id=%s;"
1015 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1016 p_64_pps ) == -1 ) )
1017 id->psz_fmtp = NULL;
1022 id->psz_fmtp = strdup( "packetization-mode=1" );
1025 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1027 char hexa[2*p_fmt->i_extra +1];
1029 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1030 id->pf_packetize = rtp_packetize_split;
1031 if( p_fmt->i_extra > 0 )
1033 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1034 if( asprintf( &id->psz_fmtp,
1035 "profile-level-id=3; config=%s;", hexa ) == -1 )
1036 id->psz_fmtp = NULL;
1040 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1042 id->i_clock_rate = p_fmt->audio.i_rate;
1046 char hexa[2*p_fmt->i_extra +1];
1048 if( asprintf( &id->psz_rtpmap, "mpeg4-generic/%d",
1049 p_fmt->audio.i_rate ) == -1 )
1050 id->psz_rtpmap = NULL;
1051 id->pf_packetize = rtp_packetize_mp4a;
1052 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1053 if( asprintf( &id->psz_fmtp,
1054 "streamtype=5; profile-level-id=15; "
1055 "mode=AAC-hbr; config=%s; SizeLength=13; "
1056 "IndexLength=3; IndexDeltaLength=3; Profile=1;",
1058 id->psz_fmtp = NULL;
1064 unsigned char config[6];
1065 unsigned int aacsrates[15] = {
1066 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1067 16000, 12000, 11025, 8000, 7350, 0, 0 };
1069 for( i = 0; i < 15; i++ )
1070 if( p_fmt->audio.i_rate == aacsrates[i] )
1076 config[3]=p_fmt->audio.i_channels<<4;
1080 if( asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1081 p_fmt->audio.i_rate,
1082 p_fmt->audio.i_channels ) == -1)
1083 id->psz_rtpmap = NULL;
1084 id->pf_packetize = rtp_packetize_mp4a_latm;
1085 sprintf_hexa( hexa, config, 6 );
1086 if( asprintf( &id->psz_fmtp, "profile-level-id=15; "
1087 "object=2; cpresent=0; config=%s", hexa ) == -1 )
1088 id->psz_fmtp = NULL;
1092 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1093 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1094 "AMR/8000/2" : "AMR/8000" );
1095 id->psz_fmtp = strdup( "octet-align=1" );
1096 id->i_clock_rate = p_fmt->audio.i_rate;
1097 id->pf_packetize = rtp_packetize_amr;
1099 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1100 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1101 "AMR-WB/16000/2" : "AMR-WB/16000" );
1102 id->psz_fmtp = strdup( "octet-align=1" );
1103 id->i_clock_rate = p_fmt->audio.i_rate;
1104 id->pf_packetize = rtp_packetize_amr;
1106 case VLC_FOURCC( 't', '1', '4', '0' ):
1107 id->psz_rtpmap = strdup( "t140/1000" );
1108 id->i_clock_rate = 1000;
1109 id->pf_packetize = rtp_packetize_t140;
1113 msg_Err( p_stream, "cannot add this stream (unsupported "
1114 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1119 cscov += 8 /* UDP */ + 12 /* RTP */;
1121 net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 );
1123 if( id->i_payload_type == p_sys->i_payload_type )
1124 p_sys->i_payload_type++;
1126 if( p_sys->rtsp != NULL )
1127 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1128 p_sys->psz_destination,
1129 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1131 id->p_fifo = block_FifoNew( p_stream );
1132 if( vlc_thread_create( id, "RTP send thread", ThreadSend,
1133 VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
1136 /* Update p_sys context */
1137 vlc_mutex_lock( &p_sys->lock_es );
1138 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1139 vlc_mutex_unlock( &p_sys->lock_es );
1141 psz_sdp = SDPGenerate( p_stream, NULL );
1143 vlc_mutex_lock( &p_sys->lock_sdp );
1144 free( p_sys->psz_sdp );
1145 p_sys->psz_sdp = psz_sdp;
1146 vlc_mutex_unlock( &p_sys->lock_sdp );
1148 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1150 /* Update SDP (sap/file) */
1151 if( p_sys->b_export_sap ) SapSetup( p_stream );
1152 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1157 Del( p_stream, id );
1161 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1163 sout_stream_sys_t *p_sys = p_stream->p_sys;
1165 if( id->p_fifo != NULL )
1167 vlc_object_kill( id );
1168 block_FifoWake( id->p_fifo );
1169 vlc_thread_join( id );
1170 block_FifoRelease( id->p_fifo );
1173 vlc_mutex_lock( &p_sys->lock_es );
1174 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1175 vlc_mutex_unlock( &p_sys->lock_es );
1178 if( id->i_port > 0 )
1180 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1181 p_sys->i_port_audio = id->i_port;
1182 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1183 p_sys->i_port_video = id->i_port;
1186 free( id->psz_rtpmap );
1187 free( id->psz_fmtp );
1190 RtspDelId( p_sys->rtsp, id->rtsp_id );
1192 rtp_del_sink( id, id->sinkv[0].rtp_fd ); /* sink for explicit dst= */
1193 if( id->listen_fd != NULL )
1194 net_ListenClose( id->listen_fd );
1196 vlc_mutex_destroy( &id->lock_sink );
1198 /* Update SDP (sap/file) */
1199 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1200 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1202 vlc_object_detach( id );
1203 vlc_object_destroy( id );
1207 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1212 assert( p_stream->p_sys->p_mux == NULL );
1214 while( p_buffer != NULL )
1216 p_next = p_buffer->p_next;
1217 if( id->pf_packetize( p_stream, id, p_buffer ) )
1220 block_Release( p_buffer );
1226 /****************************************************************************
1228 ****************************************************************************/
1229 static int SapSetup( sout_stream_t *p_stream )
1231 sout_stream_sys_t *p_sys = p_stream->p_sys;
1232 sout_instance_t *p_sout = p_stream->p_sout;
1234 /* Remove the previous session */
1235 if( p_sys->p_session != NULL)
1237 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1238 p_sys->p_session = NULL;
1241 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1243 announce_method_t *p_method = sout_SAPMethod();
1244 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1246 p_sys->psz_destination,
1248 sout_MethodRelease( p_method );
1254 /****************************************************************************
1256 ****************************************************************************/
1257 static int FileSetup( sout_stream_t *p_stream )
1259 sout_stream_sys_t *p_sys = p_stream->p_sys;
1262 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1264 msg_Err( p_stream, "cannot open file '%s' (%m)",
1265 p_sys->psz_sdp_file );
1266 return VLC_EGENERIC;
1269 fputs( p_sys->psz_sdp, f );
1275 /****************************************************************************
1277 ****************************************************************************/
1278 static int HttpCallback( httpd_file_sys_t *p_args,
1279 httpd_file_t *, uint8_t *p_request,
1280 uint8_t **pp_data, int *pi_data );
1282 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1284 sout_stream_sys_t *p_sys = p_stream->p_sys;
1286 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host,
1287 url->i_port > 0 ? url->i_port : 80 );
1288 if( p_sys->p_httpd_host )
1290 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1291 url->psz_path ? url->psz_path : "/",
1294 HttpCallback, (void*)p_sys );
1296 if( p_sys->p_httpd_file == NULL )
1298 return VLC_EGENERIC;
1303 static int HttpCallback( httpd_file_sys_t *p_args,
1304 httpd_file_t *f, uint8_t *p_request,
1305 uint8_t **pp_data, int *pi_data )
1307 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1309 vlc_mutex_lock( &p_sys->lock_sdp );
1310 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1312 *pi_data = strlen( p_sys->psz_sdp );
1313 *pp_data = malloc( *pi_data );
1314 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1321 vlc_mutex_unlock( &p_sys->lock_sdp );
1326 /****************************************************************************
1328 ****************************************************************************/
1329 static void ThreadSend( vlc_object_t *p_this )
1331 sout_stream_id_t *id = (sout_stream_id_t *)p_this;
1332 unsigned i_caching = id->i_caching;
1334 int fd[5] = { -1, -1, -1, -1, -1 };
1342 fd[4] = open( "/dev/null", O_WRONLY );
1347 block_t *out = block_FifoGet( id->p_fifo );
1349 continue; /* Forced wakeup */
1351 mtime_t i_date = out->i_dts + i_caching;
1352 ssize_t len = out->i_buffer;
1356 len = write( fd[1], out->p_buffer, len);
1358 continue; /* Uho - should not happen */
1362 vlc_mutex_lock( &id->lock_sink );
1364 unsigned deadc = 0; /* How many dead sockets? */
1365 int deadv[id->sinkc]; /* Dead sockets list */
1368 for( int i = 0; i < id->sinkc; i++ )
1370 SendRTCP( id->sinkv[i].rtcp, out );
1373 tee( fd[0], fd[3], len, 0 );
1374 if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len,
1375 SPLICE_F_NONBLOCK ) >= 0 )
1379 splice( fd[2], NULL, fd[4], NULL, len, 0 );
1381 if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) < 0 )
1382 /*deadv[deadc++] = id->sinkv[i].rtp_fd*/;
1384 vlc_mutex_unlock( &id->lock_sink );
1386 block_Release( out );
1388 splice( fd[0], NULL, fd[4], NULL, len, 0 );
1392 for( unsigned i = 0; i < deadc; i++ )
1394 msg_Dbg( id, "removing socket %d", deadv[i] );
1395 rtp_del_sink( id, deadv[i] );
1399 /* Hopefully we won't overflow the SO_MAXCONN accept queue */
1400 while( id->listen_fd != NULL )
1402 int fd = net_Accept( id, id->listen_fd, 0 );
1405 msg_Dbg( id, "adding socket %d", fd );
1406 rtp_add_sink( id, fd );
1411 for( unsigned i = 0; i < 5; i++ )
1416 static inline void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1418 block_FifoPut( id->p_fifo, out );
1421 int rtp_add_sink( sout_stream_id_t *id, int fd )
1423 rtp_sink_t sink = { fd, NULL };
1424 sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP, 0 );
1425 if( sink.rtcp == NULL )
1426 msg_Err( id, "RTCP failed!" );
1428 vlc_mutex_lock( &id->lock_sink );
1429 INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink );
1430 vlc_mutex_unlock( &id->lock_sink );
1434 void rtp_del_sink( sout_stream_id_t *id, int fd )
1436 rtp_sink_t sink = { fd, NULL };
1438 /* NOTE: must be safe to use if fd is not included */
1439 vlc_mutex_lock( &id->lock_sink );
1440 for( int i = 0; i < id->sinkc; i++ )
1442 if (id->sinkv[i].rtp_fd == fd)
1444 sink = id->sinkv[i];
1445 REMOVE_ELEM( id->sinkv, id->sinkc, i );
1449 vlc_mutex_unlock( &id->lock_sink );
1451 CloseRTCP( sink.rtcp );
1452 net_Close( sink.rtp_fd );
1455 /****************************************************************************
1457 ****************************************************************************/
1458 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1459 int b_marker, int64_t i_pts )
1461 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1463 out->p_buffer[0] = 0x80;
1464 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1465 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1466 out->p_buffer[3] = ( id->i_sequence )&0xff;
1467 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1468 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1469 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1470 out->p_buffer[7] = ( i_timestamp )&0xff;
1472 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1478 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1481 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1482 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1484 uint8_t *p_data = in->p_buffer;
1485 int i_data = in->i_buffer;
1488 for( i = 0; i < i_count; i++ )
1490 int i_payload = __MIN( i_max, i_data );
1491 block_t *out = block_New( p_stream, 16 + i_payload );
1493 /* rtp common header */
1494 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1496 out->p_buffer[12] = 0;
1497 out->p_buffer[13] = 0;
1498 /* fragment offset in the current frame */
1499 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1500 out->p_buffer[15] = ( (i*i_max) )&0xff;
1501 memcpy( &out->p_buffer[16], p_data, i_payload );
1503 out->i_buffer = 16 + i_payload;
1504 out->i_dts = in->i_dts + i * in->i_length / i_count;
1505 out->i_length = in->i_length / i_count;
1507 rtp_packetize_send( id, out );
1509 p_data += i_payload;
1510 i_data -= i_payload;
1517 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1520 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1521 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1523 uint8_t *p_data = in->p_buffer;
1524 int i_data = in->i_buffer;
1526 int b_sequence_start = 0;
1527 int i_temporal_ref = 0;
1528 int i_picture_coding_type = 0;
1529 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1530 int b_start_slice = 0;
1532 /* preparse this packet to get some info */
1533 if( in->i_buffer > 4 )
1535 uint8_t *p = p_data;
1536 int i_rest = in->i_buffer;
1540 while( i_rest > 4 &&
1541 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1555 /* sequence start code */
1556 b_sequence_start = 1;
1558 else if( *p == 0x00 && i_rest >= 4 )
1561 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1562 i_picture_coding_type = (p[2] >> 3)&0x07;
1564 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1565 i_picture_coding_type == 3 ) )
1567 i_ffv = (p[3] >> 2)&0x01;
1568 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1569 if( i_rest > 4 && i_picture_coding_type == 3 )
1571 i_fbv = (p[4]>>6)&0x01;
1572 i_bfc = (p[4]>>3)&0x07;
1576 else if( *p <= 0xaf )
1583 for( i = 0; i < i_count; i++ )
1585 int i_payload = __MIN( i_max, i_data );
1586 block_t *out = block_New( p_stream,
1588 uint32_t h = ( i_temporal_ref << 16 )|
1589 ( b_sequence_start << 13 )|
1590 ( b_start_slice << 12 )|
1591 ( i == i_count - 1 ? 1 << 11 : 0 )|
1592 ( i_picture_coding_type << 8 )|
1593 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1595 /* rtp common header */
1596 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1597 in->i_pts > 0 ? in->i_pts : in->i_dts );
1599 /* 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 */
1600 out->p_buffer[12] = ( h >> 24 )&0xff;
1601 out->p_buffer[13] = ( h >> 16 )&0xff;
1602 out->p_buffer[14] = ( h >> 8 )&0xff;
1603 out->p_buffer[15] = ( h )&0xff;
1605 memcpy( &out->p_buffer[16], p_data, i_payload );
1607 out->i_buffer = 16 + i_payload;
1608 out->i_dts = in->i_dts + i * in->i_length / i_count;
1609 out->i_length = in->i_length / i_count;
1611 rtp_packetize_send( id, out );
1613 p_data += i_payload;
1614 i_data -= i_payload;
1620 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1623 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1624 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1626 uint8_t *p_data = in->p_buffer;
1627 int i_data = in->i_buffer;
1630 for( i = 0; i < i_count; i++ )
1632 int i_payload = __MIN( i_max, i_data );
1633 block_t *out = block_New( p_stream, 14 + i_payload );
1635 /* rtp common header */
1636 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1638 out->p_buffer[12] = 1;
1640 out->p_buffer[13] = 0x00;
1642 memcpy( &out->p_buffer[14], p_data, i_payload );
1644 out->i_buffer = 14 + i_payload;
1645 out->i_dts = in->i_dts + i * in->i_length / i_count;
1646 out->i_length = in->i_length / i_count;
1648 rtp_packetize_send( id, out );
1650 p_data += i_payload;
1651 i_data -= i_payload;
1657 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1660 int i_max = id->i_mtu - 12; /* payload max in one packet */
1661 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1663 uint8_t *p_data = in->p_buffer;
1664 int i_data = in->i_buffer;
1667 for( i = 0; i < i_count; i++ )
1669 int i_payload = __MIN( i_max, i_data );
1670 block_t *out = block_New( p_stream, 12 + i_payload );
1672 /* rtp common header */
1673 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1674 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1675 memcpy( &out->p_buffer[12], p_data, i_payload );
1677 out->i_buffer = 12 + i_payload;
1678 out->i_dts = in->i_dts + i * in->i_length / i_count;
1679 out->i_length = in->i_length / i_count;
1681 rtp_packetize_send( id, out );
1683 p_data += i_payload;
1684 i_data -= i_payload;
1691 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1694 int i_max = id->i_mtu - 14; /* payload max in one packet */
1695 int latmhdrsize = in->i_buffer / 0xff + 1;
1696 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1698 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1699 int i_data = in->i_buffer;
1702 for( i = 0; i < i_count; i++ )
1704 int i_payload = __MIN( i_max, i_data );
1709 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1711 /* rtp common header */
1712 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1713 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1717 int tmp = in->i_buffer;
1719 p_header=out->p_buffer+12;
1729 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1731 out->i_buffer = 12 + latmhdrsize + i_payload;
1732 out->i_dts = in->i_dts + i * in->i_length / i_count;
1733 out->i_length = in->i_length / i_count;
1735 rtp_packetize_send( id, out );
1737 p_data += i_payload;
1738 i_data -= i_payload;
1744 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1747 int i_max = id->i_mtu - 12; /* payload max in one packet */
1748 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1750 uint8_t *p_data = in->p_buffer;
1751 int i_data = in->i_buffer;
1756 int i_payload = (__MIN( i_max, i_data )/4)*4;
1757 block_t *out = block_New( p_stream, 12 + i_payload );
1759 /* rtp common header */
1760 rtp_packetize_common( id, out, 0,
1761 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1762 memcpy( &out->p_buffer[12], p_data, i_payload );
1764 out->i_buffer = 12 + i_payload;
1765 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1766 out->i_length = in->i_length / i_count;
1768 rtp_packetize_send( id, out );
1770 p_data += i_payload;
1771 i_data -= i_payload;
1778 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1781 int i_max = id->i_mtu - 12; /* payload max in one packet */
1782 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1784 uint8_t *p_data = in->p_buffer;
1785 int i_data = in->i_buffer;
1790 int i_payload = (__MIN( i_max, i_data )/2)*2;
1791 block_t *out = block_New( p_stream, 12 + i_payload );
1793 /* rtp common header */
1794 rtp_packetize_common( id, out, 0,
1795 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1796 memcpy( &out->p_buffer[12], p_data, i_payload );
1798 out->i_buffer = 12 + i_payload;
1799 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1800 out->i_length = in->i_length / i_count;
1802 rtp_packetize_send( id, out );
1804 p_data += i_payload;
1805 i_data -= i_payload;
1812 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1815 int i_max = id->i_mtu - 16; /* payload max in one packet */
1816 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1818 uint8_t *p_data = in->p_buffer;
1819 int i_data = in->i_buffer;
1822 for( i = 0; i < i_count; i++ )
1824 int i_payload = __MIN( i_max, i_data );
1825 block_t *out = block_New( p_stream, 16 + i_payload );
1827 /* rtp common header */
1828 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1829 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1831 /* AU headers length (bits) */
1832 out->p_buffer[12] = 0;
1833 out->p_buffer[13] = 2*8;
1834 /* for each AU length 13 bits + idx 3bits, */
1835 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1836 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1838 memcpy( &out->p_buffer[16], p_data, i_payload );
1840 out->i_buffer = 16 + i_payload;
1841 out->i_dts = in->i_dts + i * in->i_length / i_count;
1842 out->i_length = in->i_length / i_count;
1844 rtp_packetize_send( id, out );
1846 p_data += i_payload;
1847 i_data -= i_payload;
1855 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1856 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1857 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1860 uint8_t *p_data = in->p_buffer;
1861 int i_data = in->i_buffer;
1863 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1866 int b_v_bit = 0; // no pesky error resilience
1867 int i_plen = 0; // normally plen=0 for PSC packet
1868 int i_pebit = 0; // because plen=0
1873 return VLC_EGENERIC;
1875 if( p_data[0] || p_data[1] )
1877 return VLC_EGENERIC;
1879 /* remove 2 leading 0 bytes */
1882 i_count = ( i_data + i_max - 1 ) / i_max;
1884 for( i = 0; i < i_count; i++ )
1886 int i_payload = __MIN( i_max, i_data );
1887 block_t *out = block_New( p_stream,
1888 RTP_H263_PAYLOAD_START + i_payload );
1889 b_p_bit = (i == 0) ? 1 : 0;
1890 h = ( b_p_bit << 10 )|
1895 /* rtp common header */
1896 //b_m_bit = 1; // always contains end of frame
1897 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1898 in->i_pts > 0 ? in->i_pts : in->i_dts );
1901 out->p_buffer[12] = ( h >> 8 )&0xff;
1902 out->p_buffer[13] = ( h )&0xff;
1903 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1905 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1906 out->i_dts = in->i_dts + i * in->i_length / i_count;
1907 out->i_length = in->i_length / i_count;
1909 rtp_packetize_send( id, out );
1911 p_data += i_payload;
1912 i_data -= i_payload;
1920 rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1921 const uint8_t *p_data, int i_data, int64_t i_pts,
1922 int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1924 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1931 i_nal_hdr = p_data[3];
1932 i_nal_type = i_nal_hdr&0x1f;
1934 /* Skip start code */
1939 if( i_data <= i_max )
1941 /* Single NAL unit packet */
1942 block_t *out = block_New( p_stream, 12 + i_data );
1944 out->i_length = i_length;
1947 rtp_packetize_common( id, out, b_last, i_pts );
1948 out->i_buffer = 12 + i_data;
1950 memcpy( &out->p_buffer[12], p_data, i_data );
1952 rtp_packetize_send( id, out );
1956 /* FU-A Fragmentation Unit without interleaving */
1957 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1963 for( i = 0; i < i_count; i++ )
1965 const int i_payload = __MIN( i_data, i_max-2 );
1966 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1967 out->i_dts = i_dts + i * i_length / i_count;
1968 out->i_length = i_length / i_count;
1971 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1972 out->i_buffer = 14 + i_payload;
1975 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1977 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1978 memcpy( &out->p_buffer[14], p_data, i_payload );
1980 rtp_packetize_send( id, out );
1982 i_data -= i_payload;
1983 p_data += i_payload;
1989 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1992 const uint8_t *p_buffer = in->p_buffer;
1993 int i_buffer = in->i_buffer;
1995 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
2001 /* Split nal units */
2002 while( i_buffer > 4 )
2005 int i_size = i_buffer;
2006 int i_skip = i_buffer;
2008 /* search nal end */
2009 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
2011 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
2013 /* we found another startcode */
2014 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
2019 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
2020 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
2021 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
2022 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2030 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2033 int i_max = id->i_mtu - 14; /* payload max in one packet */
2034 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2036 uint8_t *p_data = in->p_buffer;
2037 int i_data = in->i_buffer;
2040 /* Only supports octet-aligned mode */
2041 for( i = 0; i < i_count; i++ )
2043 int i_payload = __MIN( i_max, i_data );
2044 block_t *out = block_New( p_stream, 14 + i_payload );
2046 /* rtp common header */
2047 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2048 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2049 /* Payload header */
2050 out->p_buffer[12] = 0xF0; /* CMR */
2051 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2053 /* FIXME: are we fed multiple frames ? */
2054 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2056 out->i_buffer = 14 + i_payload-1;
2057 out->i_dts = in->i_dts + i * in->i_length / i_count;
2058 out->i_length = in->i_length / i_count;
2060 rtp_packetize_send( id, out );
2062 p_data += i_payload;
2063 i_data -= i_payload;
2069 static int rtp_packetize_t140( sout_stream_t *p_stream, sout_stream_id_t *id,
2072 const size_t i_max = id->i_mtu - 12;
2073 const uint8_t *p_data = in->p_buffer;
2074 size_t i_data = in->i_buffer;
2076 for( unsigned i_packet = 0; i_data > 0; i_packet++ )
2078 size_t i_payload = i_data;
2080 /* Make sure we stop on an UTF-8 character boundary
2081 * (assuming the input is valid UTF-8) */
2082 if( i_data > i_max )
2086 while( ( p_data[i_payload] & 0xC0 ) == 0x80 )
2088 if( i_payload == 0 )
2089 return VLC_SUCCESS; /* fishy input! */
2095 block_t *out = block_New( p_stream, 12 + i_payload );
2099 rtp_packetize_common( id, out, 0, in->i_pts + i_packet );
2100 memcpy( out->p_buffer + 12, p_data, i_payload );
2102 out->i_buffer = 12 + i_payload;
2103 out->i_dts = out->i_pts;
2106 rtp_packetize_send( id, out );
2108 p_data += i_payload;
2109 i_data -= i_payload;
2115 /*****************************************************************************
2117 *****************************************************************************/
2119 /** Add an ES to a non-RTP muxed stream */
2120 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
2122 sout_input_t *p_input;
2123 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2124 assert( p_mux != NULL );
2126 p_input = sout_MuxAddStream( p_mux, p_fmt );
2127 if( p_input == NULL )
2129 msg_Err( p_stream, "cannot add this stream to the muxer" );
2133 return (sout_stream_id_t *)p_input;
2137 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
2140 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2141 assert( p_mux != NULL );
2143 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
2148 /** Remove an ES from a non-RTP muxed stream */
2149 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
2151 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2152 assert( p_mux != NULL );
2154 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
2159 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
2160 const block_t *p_buffer )
2162 sout_stream_sys_t *p_sys = p_stream->p_sys;
2163 sout_stream_id_t *id = p_sys->es[0];
2165 int64_t i_dts = p_buffer->i_dts;
2167 uint8_t *p_data = p_buffer->p_buffer;
2168 unsigned int i_data = p_buffer->i_buffer;
2169 unsigned int i_max = id->i_mtu - 12;
2171 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
2175 unsigned int i_size;
2177 /* output complete packet */
2178 if( p_sys->packet &&
2179 p_sys->packet->i_buffer + i_data > i_max )
2181 rtp_packetize_send( id, p_sys->packet );
2182 p_sys->packet = NULL;
2185 if( p_sys->packet == NULL )
2187 /* allocate a new packet */
2188 p_sys->packet = block_New( p_stream, id->i_mtu );
2189 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
2190 p_sys->packet->i_dts = i_dts;
2191 p_sys->packet->i_length = p_buffer->i_length / i_packet;
2192 i_dts += p_sys->packet->i_length;
2195 i_size = __MIN( i_data,
2196 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
2198 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
2201 p_sys->packet->i_buffer += i_size;
2210 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
2213 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
2219 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
2221 p_next = p_buffer->p_next;
2222 block_Release( p_buffer );
2230 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
2232 sout_access_out_t *p_grab;
2234 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
2235 if( p_grab == NULL )
2238 p_grab->p_module = NULL;
2239 p_grab->p_sout = p_stream->p_sout;
2240 p_grab->psz_access = strdup( "grab" );
2241 p_grab->p_cfg = NULL;
2242 p_grab->psz_path = strdup( "" );
2243 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
2244 p_grab->pf_seek = NULL;
2245 p_grab->pf_write = AccessOutGrabberWrite;