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 descriptipn")
73 #define DESC_LONGTEXT N_( \
74 "This allows you to give a short description with details about the stream, " \
75 "that will 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 PHONE_TEXT N_("Session phone number")
86 #define PHONE_LONGTEXT N_( \
87 "This allows you to give a contact telephone number for the stream, that will " \
88 "be announced in the SDP (Session Descriptor)." )
90 #define PORT_TEXT N_("Port")
91 #define PORT_LONGTEXT N_( \
92 "This allows you to specify the base port for the RTP streaming." )
93 #define PORT_AUDIO_TEXT N_("Audio port")
94 #define PORT_AUDIO_LONGTEXT N_( \
95 "This allows you to specify the default audio port for the RTP streaming." )
96 #define PORT_VIDEO_TEXT N_("Video port")
97 #define PORT_VIDEO_LONGTEXT N_( \
98 "This allows you to specify the default video port for the RTP streaming." )
100 #define TTL_TEXT N_("Hop limit (TTL)")
101 #define TTL_LONGTEXT N_( \
102 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
103 "the multicast packets sent by the stream output (0 = use operating " \
104 "system built-in default).")
106 #define DCCP_TEXT N_("DCCP transport")
107 #define DCCP_LONGTEXT N_( \
108 "This enables DCCP instead of UDP as a transport for RTP." )
109 #define TCP_TEXT N_("TCP transport")
110 #define TCP_LONGTEXT N_( \
111 "This enables TCP instead of UDP as a transport for RTP." )
112 #define UDP_LITE_TEXT N_("UDP-Lite transport")
113 #define UDP_LITE_LONGTEXT N_( \
114 "This enables UDP-Lite instead of UDP as a transport for RTP." )
116 #define RFC3016_TEXT N_("MP4A LATM")
117 #define RFC3016_LONGTEXT N_( \
118 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
120 static int Open ( vlc_object_t * );
121 static void Close( vlc_object_t * );
123 #define SOUT_CFG_PREFIX "sout-rtp-"
124 #define MAX_EMPTY_BLOCKS 200
127 set_shortname( _("RTP"));
128 set_description( _("RTP stream output") );
129 set_capability( "sout stream", 0 );
130 add_shortcut( "rtp" );
131 set_category( CAT_SOUT );
132 set_subcategory( SUBCAT_SOUT_STREAM );
134 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
135 DST_LONGTEXT, VLC_TRUE );
136 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
137 SDP_LONGTEXT, VLC_TRUE );
138 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
139 MUX_LONGTEXT, VLC_TRUE );
141 add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT,
142 NAME_LONGTEXT, VLC_TRUE );
143 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
144 DESC_LONGTEXT, VLC_TRUE );
145 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
146 URL_LONGTEXT, VLC_TRUE );
147 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
148 EMAIL_LONGTEXT, VLC_TRUE );
149 add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT,
150 PHONE_LONGTEXT, VLC_TRUE );
152 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
153 PORT_LONGTEXT, VLC_TRUE );
154 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
155 PORT_AUDIO_LONGTEXT, VLC_TRUE );
156 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
157 PORT_VIDEO_LONGTEXT, VLC_TRUE );
159 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
160 TTL_LONGTEXT, VLC_TRUE );
162 add_bool( SOUT_CFG_PREFIX "dccp", 0, NULL,
163 DCCP_TEXT, DCCP_LONGTEXT, VLC_FALSE );
164 add_bool( SOUT_CFG_PREFIX "tcp", 0, NULL,
165 TCP_TEXT, TCP_LONGTEXT, VLC_FALSE );
166 add_bool( SOUT_CFG_PREFIX "udplite", 0, NULL,
167 UDP_LITE_TEXT, UDP_LITE_LONGTEXT, VLC_FALSE );
169 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
170 RFC3016_LONGTEXT, VLC_FALSE );
172 set_callbacks( Open, Close );
175 /*****************************************************************************
176 * Exported prototypes
177 *****************************************************************************/
178 static const char *ppsz_sout_options[] = {
179 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
180 "description", "url", "email", "phone",
181 "dccp", "tcp", "udplite",
185 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
186 static int Del ( sout_stream_t *, sout_stream_id_t * );
187 static int Send( sout_stream_t *, sout_stream_id_t *,
189 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
190 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
191 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
194 static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
195 static void ThreadSend( vlc_object_t *p_this );
197 static void SDPHandleUrl( sout_stream_t *, char * );
199 static int SapSetup( sout_stream_t *p_stream );
200 static int FileSetup( sout_stream_t *p_stream );
201 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
203 struct sout_stream_sys_t
209 vlc_mutex_t lock_sdp;
211 char *psz_session_name;
212 char *psz_session_description;
213 char *psz_session_url;
214 char *psz_session_email;
217 vlc_bool_t b_export_sdp_file;
221 vlc_bool_t b_export_sap;
222 session_descriptor_t *p_session;
225 httpd_host_t *p_httpd_host;
226 httpd_file_t *p_httpd_file;
232 char *psz_destination;
236 uint16_t i_port_audio;
237 uint16_t i_port_video;
240 /* when need to use a private one or when using muxer */
243 /* in case we do TS/PS over rtp */
245 sout_access_out_t *p_grab;
251 sout_stream_id_t **es;
254 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
257 typedef struct rtp_sink_t
263 struct sout_stream_id_t
267 sout_stream_t *p_stream;
269 uint32_t i_timestamp_start;
271 uint8_t i_payload_type;
282 /* Packetizer specific fields */
283 pf_rtp_packetizer_t pf_packetize;
287 vlc_mutex_t lock_sink;
290 rtsp_stream_id_t *rtsp_id;
292 block_fifo_t *p_fifo;
297 /*****************************************************************************
299 *****************************************************************************/
300 static int Open( vlc_object_t *p_this )
302 sout_stream_t *p_stream = (sout_stream_t*)p_this;
303 sout_instance_t *p_sout = p_stream->p_sout;
304 sout_stream_sys_t *p_sys = NULL;
305 config_chain_t *p_cfg = NULL;
307 vlc_bool_t b_rtsp = VLC_FALSE;
309 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
310 ppsz_sout_options, p_stream->p_cfg );
312 p_sys = malloc( sizeof( sout_stream_sys_t ) );
316 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
317 p_sys->psz_session_name = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "name" );
318 p_sys->psz_session_description = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "description" );
319 p_sys->psz_session_url = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "url" );
320 p_sys->psz_session_email = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "email" );
322 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
323 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
324 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
326 p_sys->psz_sdp_file = NULL;
328 if( p_sys->i_port_audio == p_sys->i_port_video )
330 msg_Err( p_stream, "audio and video port cannot be the same" );
331 p_sys->i_port_audio = 0;
332 p_sys->i_port_video = 0;
335 if( !p_sys->psz_session_name )
337 if( p_sys->psz_destination )
338 p_sys->psz_session_name = strdup( p_sys->psz_destination );
340 p_sys->psz_session_name = strdup( "NONE" );
343 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
345 if( !strcmp( p_cfg->psz_name, "sdp" )
346 && ( p_cfg->psz_value != NULL )
347 && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) )
355 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
358 if( !strncasecmp( psz, "rtsp:", 5 ) )
364 /* Transport protocol */
365 p_sys->proto = IPPROTO_UDP;
368 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "dccp" ) )
370 p_sys->sotype = SOCK_DCCP;
371 p_sys->proto = 33 /*IPPROTO_DCCP*/;
374 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "tcp" ) )
376 p_sys->sotype = SOCK_STREAM;
377 p_sys->proto = IPPROTO_TCP;
381 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "udplite" ) )
382 p_sys->proto = 136 /*IPPROTO_UDPLITE*/;
384 if( ( p_sys->psz_destination == NULL ) && !b_rtsp )
386 msg_Err( p_stream, "missing destination and not in RTSP mode" );
391 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
392 if( p_sys->i_ttl == 0 )
394 /* Normally, we should let the default hop limit up to the core,
395 * but we have to know it to build our SDP properly, which is why
396 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
398 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
401 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
403 p_sys->i_payload_type = 96;
407 p_sys->psz_sdp = NULL;
409 p_sys->i_sdp_id = mdate();
410 p_sys->i_sdp_version = 1;
411 p_sys->psz_sdp = NULL;
413 p_sys->b_export_sap = VLC_FALSE;
414 p_sys->b_export_sdp_file = VLC_FALSE;
415 p_sys->p_session = NULL;
417 p_sys->p_httpd_host = NULL;
418 p_sys->p_httpd_file = NULL;
420 p_stream->p_sys = p_sys;
422 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
423 vlc_mutex_init( p_stream, &p_sys->lock_es );
425 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
428 sout_stream_id_t *id;
430 /* Check muxer type */
431 if( strncasecmp( psz, "ps", 2 )
432 && strncasecmp( psz, "mpeg1", 5 )
433 && strncasecmp( psz, "ts", 2 ) )
435 msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" );
437 vlc_mutex_destroy( &p_sys->lock_sdp );
438 vlc_mutex_destroy( &p_sys->lock_es );
443 p_sys->p_grab = GrabberCreate( p_stream );
444 p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab );
447 if( p_sys->p_mux == NULL )
449 msg_Err( p_stream, "cannot create muxer" );
450 sout_AccessOutDelete( p_sys->p_grab );
451 vlc_mutex_destroy( &p_sys->lock_sdp );
452 vlc_mutex_destroy( &p_sys->lock_es );
457 id = Add( p_stream, NULL );
460 sout_MuxDelete( p_sys->p_mux );
461 sout_AccessOutDelete( p_sys->p_grab );
462 vlc_mutex_destroy( &p_sys->lock_sdp );
463 vlc_mutex_destroy( &p_sys->lock_es );
468 p_sys->packet = NULL;
470 p_stream->pf_add = MuxAdd;
471 p_stream->pf_del = MuxDel;
472 p_stream->pf_send = MuxSend;
477 p_sys->p_grab = NULL;
479 p_stream->pf_add = Add;
480 p_stream->pf_del = Del;
481 p_stream->pf_send = Send;
484 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
487 config_chain_t *p_cfg;
489 SDPHandleUrl( p_stream, psz );
491 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
493 if( !strcmp( p_cfg->psz_name, "sdp" ) )
495 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
498 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
499 if( !strcmp( p_cfg->psz_value, psz ) )
502 SDPHandleUrl( p_stream, p_cfg->psz_value );
508 /* update p_sout->i_out_pace_nocontrol */
509 p_stream->p_sout->i_out_pace_nocontrol++;
514 /*****************************************************************************
516 *****************************************************************************/
517 static void Close( vlc_object_t * p_this )
519 sout_stream_t *p_stream = (sout_stream_t*)p_this;
520 sout_stream_sys_t *p_sys = p_stream->p_sys;
522 /* update p_sout->i_out_pace_nocontrol */
523 p_stream->p_sout->i_out_pace_nocontrol--;
527 assert( p_sys->i_es == 1 );
528 Del( p_stream, p_sys->es[0] );
530 sout_MuxDelete( p_sys->p_mux );
531 sout_AccessOutDelete( p_sys->p_grab );
534 block_Release( p_sys->packet );
536 if( p_sys->b_export_sap )
539 SapSetup( p_stream );
543 if( p_sys->rtsp != NULL )
544 RtspUnsetup( p_sys->rtsp );
546 vlc_mutex_destroy( &p_sys->lock_sdp );
547 vlc_mutex_destroy( &p_sys->lock_es );
549 if( p_sys->p_httpd_file )
550 httpd_FileDelete( p_sys->p_httpd_file );
552 if( p_sys->p_httpd_host )
553 httpd_HostDelete( p_sys->p_httpd_host );
555 free( p_sys->psz_session_name );
556 free( p_sys->psz_session_description );
557 free( p_sys->psz_session_url );
558 free( p_sys->psz_session_email );
559 free( p_sys->psz_sdp );
561 if( p_sys->b_export_sdp_file )
564 unlink( p_sys->psz_sdp_file );
566 free( p_sys->psz_sdp_file );
568 free( p_sys->psz_destination );
572 /*****************************************************************************
574 *****************************************************************************/
575 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
577 sout_stream_sys_t *p_sys = p_stream->p_sys;
580 vlc_UrlParse( &url, psz_url, 0 );
581 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
583 if( p_sys->p_httpd_file )
585 msg_Err( p_stream, "you can use sdp=http:// only once" );
589 if( HttpSetup( p_stream, &url ) )
591 msg_Err( p_stream, "cannot export SDP as HTTP" );
594 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
596 if( p_sys->rtsp != NULL )
598 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
602 /* FIXME test if destination is multicast or no destination at all */
603 p_sys->rtsp = RtspSetup( p_stream, &url );
604 if( p_sys->rtsp == NULL )
606 msg_Err( p_stream, "cannot export SDP as RTSP" );
609 if( p_sys->p_mux != NULL )
611 sout_stream_id_t *id = p_sys->es[0];
612 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0,
613 p_sys->psz_destination, p_sys->i_ttl,
614 id->i_port, id->i_port + 1 );
617 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
618 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
620 p_sys->b_export_sap = VLC_TRUE;
621 SapSetup( p_stream );
623 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
625 if( p_sys->b_export_sdp_file )
627 msg_Err( p_stream, "you can use sdp=file:// only once" );
630 p_sys->b_export_sdp_file = VLC_TRUE;
631 psz_url = &psz_url[5];
632 if( psz_url[0] == '/' && psz_url[1] == '/' )
634 p_sys->psz_sdp_file = strdup( psz_url );
638 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
643 vlc_UrlClean( &url );
646 /*****************************************************************************
648 *****************************************************************************/
650 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
652 const sout_stream_sys_t *p_sys = p_stream->p_sys;
654 struct sockaddr_storage dst;
658 * When we have a fixed destination (typically when we do multicast),
659 * we need to put the actual port numbers in the SDP.
660 * When there is no fixed destination, we only support RTSP unicast
661 * on-demand setup, so we should rather let the clients decide which ports
663 * When there is both a fixed destination and RTSP unicast, we need to
664 * put port numbers used by the fixed destination, otherwise the SDP would
665 * become totally incorrect for multicast use. It should be noted that
666 * port numbers from SDP with RTSP are only "recommendation" from the
667 * server to the clients (per RFC2326), so only broken clients will fail
668 * to handle this properly. There is no solution but to use two differents
669 * output chain with two different RTSP URLs if you need to handle this
674 if( p_sys->psz_destination != NULL )
678 /* Oh boy, this is really ugly! (+ race condition on lock_es) */
679 dstlen = sizeof( dst );
680 getpeername( p_sys->es[0]->sinkv[0].rtp_fd, (struct sockaddr *)&dst,
687 /* Dummy destination address for RTSP */
688 memset (&dst, 0, sizeof( struct sockaddr_in ) );
689 dst.ss_family = AF_INET;
693 dstlen = sizeof( struct sockaddr_in );
696 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_stream ), SOUT_CFG_PREFIX,
697 NULL, 0, (struct sockaddr *)&dst, dstlen );
698 if( psz_sdp == NULL )
701 /* TODO: a=source-filter */
703 if( rtsp_url != NULL )
704 sdp_AddAttribute ( &psz_sdp, "control", "%s", rtsp_url );
706 /* FIXME: locking?! */
707 for( i = 0; i < p_sys->i_es; i++ )
709 sout_stream_id_t *id = p_sys->es[i];
710 const char *mime_major; /* major MIME type */
715 mime_major = "video";
718 mime_major = "audio";
727 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", inclport * id->i_port,
728 id->i_payload_type, VLC_FALSE, id->i_bitrate,
729 id->psz_rtpmap, id->psz_fmtp);
731 if( rtsp_url != NULL )
732 sdp_AddAttribute ( &psz_sdp, "control", "%s/trackID=%d",
739 /*****************************************************************************
741 *****************************************************************************/
742 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
743 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
744 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
745 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
746 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
747 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
748 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
749 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
750 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
751 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
752 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
753 static int rtp_packetize_t140 ( sout_stream_t *, sout_stream_id_t *, block_t * );
755 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
757 static const char hex[16] = "0123456789abcdef";
760 for( i = 0; i < i_data; i++ )
762 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
763 s[2*i+1] = hex[(p_data[i] )&0xf];
769 /** Add an ES as a new RTP stream */
770 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
772 /* NOTE: As a special case, if we use a non-RTP
773 * mux (TS/PS), then p_fmt is NULL. */
774 sout_stream_sys_t *p_sys = p_stream->p_sys;
775 sout_stream_id_t *id;
776 int i_port, cscov = -1;
779 id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) );
783 /* Choose the port */
788 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
790 i_port = p_sys->i_port_audio;
791 p_sys->i_port_audio = 0;
794 if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
796 i_port = p_sys->i_port_video;
797 p_sys->i_port_video = 0;
802 if( p_sys->i_port != p_sys->i_port_audio
803 && p_sys->i_port != p_sys->i_port_video )
805 i_port = p_sys->i_port;
812 id->p_stream = p_stream;
814 id->i_timestamp_start = rand()&0xffffffff;
815 id->i_sequence = rand()&0xffff;
816 id->i_payload_type = p_sys->i_payload_type;
817 id->ssrc[0] = rand()&0xff;
818 id->ssrc[1] = rand()&0xff;
819 id->ssrc[2] = rand()&0xff;
820 id->ssrc[3] = rand()&0xff;
822 id->psz_rtpmap = NULL;
824 id->i_clock_rate = 90000; /* most common case */
828 id->i_cat = p_fmt->i_cat;
829 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
833 id->i_cat = VIDEO_ES;
837 id->pf_packetize = NULL;
838 id->i_mtu = config_GetInt( p_stream, "mtu" );
839 if( id->i_mtu <= 12 + 16 )
840 id->i_mtu = 576 - 20 - 8; /* pessimistic */
842 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
844 vlc_mutex_init( p_stream, &id->lock_sink );
850 (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching");
851 id->p_fifo = block_FifoNew( p_stream );
853 if( vlc_thread_create( id, "RTP send thread", ThreadSend,
854 VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
856 vlc_mutex_destroy( &id->lock_sink );
857 vlc_object_destroy( id );
861 if( p_sys->psz_destination != NULL )
863 int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1;
864 int fd = net_ConnectDgram( p_stream, p_sys->psz_destination,
865 i_port, ttl, p_sys->proto );
869 msg_Err( p_stream, "cannot create RTP socket" );
870 vlc_thread_join( id );
871 vlc_mutex_destroy( &id->lock_sink );
872 vlc_object_destroy( id );
875 rtp_add_sink( id, fd );
880 char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
882 if( psz == NULL ) /* Uho! */
885 if( strncmp( psz, "ts", 2 ) == 0 )
887 id->i_payload_type = 33;
888 id->psz_rtpmap = strdup( "MP2T/90000" );
892 id->psz_rtpmap = strdup( "MP2P/90000" );
896 switch( p_fmt->i_codec )
898 case VLC_FOURCC( 's', '1', '6', 'b' ):
899 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
901 id->i_payload_type = 11;
903 else if( p_fmt->audio.i_channels == 2 &&
904 p_fmt->audio.i_rate == 44100 )
906 id->i_payload_type = 10;
908 if( asprintf( &id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
909 p_fmt->audio.i_channels ) == -1 )
910 id->psz_rtpmap = NULL;
911 id->i_clock_rate = p_fmt->audio.i_rate;
912 id->pf_packetize = rtp_packetize_l16;
914 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
915 if( asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
916 p_fmt->audio.i_channels ) == -1 )
917 id->psz_rtpmap = NULL;
918 id->i_clock_rate = p_fmt->audio.i_rate;
919 id->pf_packetize = rtp_packetize_l8;
921 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
922 id->i_payload_type = 14;
923 id->psz_rtpmap = strdup( "MPA/90000" );
924 id->pf_packetize = rtp_packetize_mpa;
926 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
927 id->i_payload_type = 32;
928 id->psz_rtpmap = strdup( "MPV/90000" );
929 id->pf_packetize = rtp_packetize_mpv;
931 case VLC_FOURCC( 'a', '5', '2', ' ' ):
932 id->psz_rtpmap = strdup( "ac3/90000" );
933 id->pf_packetize = rtp_packetize_ac3;
935 case VLC_FOURCC( 'H', '2', '6', '3' ):
936 id->psz_rtpmap = strdup( "H263-1998/90000" );
937 id->pf_packetize = rtp_packetize_h263;
939 case VLC_FOURCC( 'h', '2', '6', '4' ):
940 id->psz_rtpmap = strdup( "H264/90000" );
941 id->pf_packetize = rtp_packetize_h264;
944 if( p_fmt->i_extra > 0 )
946 uint8_t *p_buffer = p_fmt->p_extra;
947 int i_buffer = p_fmt->i_extra;
948 char *p_64_sps = NULL;
949 char *p_64_pps = NULL;
952 while( i_buffer > 4 &&
953 p_buffer[0] == 0 && p_buffer[1] == 0 &&
954 p_buffer[2] == 0 && p_buffer[3] == 1 )
956 const int i_nal_type = p_buffer[4]&0x1f;
960 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
963 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
965 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
967 /* we found another startcode */
972 if( i_nal_type == 7 )
974 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
975 sprintf_hexa( hexa, &p_buffer[5], 3 );
977 else if( i_nal_type == 8 )
979 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
985 if( p_64_sps && p_64_pps &&
986 ( asprintf( &id->psz_fmtp,
987 "packetization-mode=1;profile-level-id=%s;"
988 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
995 id->psz_fmtp = strdup( "packetization-mode=1" );
998 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1000 char hexa[2*p_fmt->i_extra +1];
1002 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1003 id->pf_packetize = rtp_packetize_split;
1004 if( p_fmt->i_extra > 0 )
1006 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1007 if( asprintf( &id->psz_fmtp,
1008 "profile-level-id=3; config=%s;", hexa ) == -1 )
1009 id->psz_fmtp = NULL;
1013 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1015 id->i_clock_rate = p_fmt->audio.i_rate;
1019 char hexa[2*p_fmt->i_extra +1];
1021 if( asprintf( &id->psz_rtpmap, "mpeg4-generic/%d",
1022 p_fmt->audio.i_rate ) == -1 )
1023 id->psz_rtpmap = NULL;
1024 id->pf_packetize = rtp_packetize_mp4a;
1025 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1026 if( asprintf( &id->psz_fmtp,
1027 "streamtype=5; profile-level-id=15; "
1028 "mode=AAC-hbr; config=%s; SizeLength=13; "
1029 "IndexLength=3; IndexDeltaLength=3; Profile=1;",
1031 id->psz_fmtp = NULL;
1037 unsigned char config[6];
1038 unsigned int aacsrates[15] = {
1039 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1040 16000, 12000, 11025, 8000, 7350, 0, 0 };
1042 for( i = 0; i < 15; i++ )
1043 if( p_fmt->audio.i_rate == aacsrates[i] )
1049 config[3]=p_fmt->audio.i_channels<<4;
1053 if( asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1054 p_fmt->audio.i_rate,
1055 p_fmt->audio.i_channels ) == -1)
1056 id->psz_rtpmap = NULL;
1057 id->pf_packetize = rtp_packetize_mp4a_latm;
1058 sprintf_hexa( hexa, config, 6 );
1059 if( asprintf( &id->psz_fmtp, "profile-level-id=15; "
1060 "object=2; cpresent=0; config=%s", hexa ) == -1 )
1061 id->psz_fmtp = NULL;
1065 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1066 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1067 "AMR/8000/2" : "AMR/8000" );
1068 id->psz_fmtp = strdup( "octet-align=1" );
1069 id->i_clock_rate = p_fmt->audio.i_rate;
1070 id->pf_packetize = rtp_packetize_amr;
1072 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1073 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1074 "AMR-WB/16000/2" : "AMR-WB/16000" );
1075 id->psz_fmtp = strdup( "octet-align=1" );
1076 id->i_clock_rate = p_fmt->audio.i_rate;
1077 id->pf_packetize = rtp_packetize_amr;
1079 case VLC_FOURCC( 't', '1', '4', '0' ):
1080 id->psz_rtpmap = strdup( "t140/1000" );
1081 id->i_clock_rate = 1000;
1082 id->pf_packetize = rtp_packetize_t140;
1086 msg_Err( p_stream, "cannot add this stream (unsupported "
1087 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1089 rtp_del_sink( id, id->sinkv[0].rtp_fd );
1090 vlc_thread_join( id );
1091 vlc_mutex_destroy( &id->lock_sink );
1092 vlc_object_destroy( id );
1097 cscov += 8 /* UDP */ + 12 /* RTP */;
1099 net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 );
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;
1200 /* Remove the previous session */
1201 if( p_sys->p_session != NULL)
1203 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1204 p_sys->p_session = NULL;
1207 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1209 announce_method_t *p_method = sout_SAPMethod();
1210 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1212 p_sys->psz_destination,
1214 sout_MethodRelease( p_method );
1220 /****************************************************************************
1222 ****************************************************************************/
1223 static int FileSetup( sout_stream_t *p_stream )
1225 sout_stream_sys_t *p_sys = p_stream->p_sys;
1228 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1230 msg_Err( p_stream, "cannot open file '%s' (%s)",
1231 p_sys->psz_sdp_file, strerror(errno) );
1232 return VLC_EGENERIC;
1235 fputs( p_sys->psz_sdp, f );
1241 /****************************************************************************
1243 ****************************************************************************/
1244 static int HttpCallback( httpd_file_sys_t *p_args,
1245 httpd_file_t *, uint8_t *p_request,
1246 uint8_t **pp_data, int *pi_data );
1248 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1250 sout_stream_sys_t *p_sys = p_stream->p_sys;
1252 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host,
1253 url->i_port > 0 ? url->i_port : 80 );
1254 if( p_sys->p_httpd_host )
1256 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1257 url->psz_path ? url->psz_path : "/",
1260 HttpCallback, (void*)p_sys );
1262 if( p_sys->p_httpd_file == NULL )
1264 return VLC_EGENERIC;
1269 static int HttpCallback( httpd_file_sys_t *p_args,
1270 httpd_file_t *f, uint8_t *p_request,
1271 uint8_t **pp_data, int *pi_data )
1273 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1275 vlc_mutex_lock( &p_sys->lock_sdp );
1276 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1278 *pi_data = strlen( p_sys->psz_sdp );
1279 *pp_data = malloc( *pi_data );
1280 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1287 vlc_mutex_unlock( &p_sys->lock_sdp );
1292 /****************************************************************************
1294 ****************************************************************************/
1295 static void ThreadSend( vlc_object_t *p_this )
1297 sout_stream_id_t *id = (sout_stream_id_t *)p_this;
1298 unsigned i_caching = id->i_caching;
1300 int fd[5] = { -1, -1, -1, -1, -1 };
1308 fd[4] = open( "/dev/null", O_WRONLY );
1313 block_t *out = block_FifoGet( id->p_fifo );
1314 mtime_t i_date = out->i_dts + i_caching;
1315 ssize_t len = out->i_buffer;
1319 len = write( fd[1], out->p_buffer, len);
1321 continue; /* Uho - should not happen */
1325 vlc_mutex_lock( &id->lock_sink );
1326 for( int i = 0; i < id->sinkc; i++ )
1328 SendRTCP( id->sinkv[i].rtcp, out );
1331 tee( fd[0], fd[3], len, 0 );
1332 if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len,
1333 SPLICE_F_NONBLOCK ) >= 0 )
1337 splice( fd[2], NULL, fd[4], NULL, len, 0 );
1339 send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 );
1341 vlc_mutex_unlock( &id->lock_sink );
1343 block_Release( out );
1345 splice( fd[0], NULL, fd[4], NULL, len, 0 );
1350 for( unsigned i = 0; i < 5; i++ )
1355 static inline void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1357 block_FifoPut( id->p_fifo, out );
1360 int rtp_add_sink( sout_stream_id_t *id, int fd )
1362 rtp_sink_t sink = { fd, NULL };
1363 sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP );
1364 if( sink.rtcp == NULL )
1365 msg_Err( id, "RTCP failed!" );
1367 vlc_mutex_lock( &id->lock_sink );
1368 INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink );
1369 vlc_mutex_unlock( &id->lock_sink );
1373 void rtp_del_sink( sout_stream_id_t *id, int fd )
1375 rtp_sink_t sink = { fd, NULL };
1377 /* NOTE: must be safe to use if fd is not included */
1378 vlc_mutex_lock( &id->lock_sink );
1379 for( int i = 0; i < id->sinkc; i++ )
1381 if (id->sinkv[i].rtp_fd == fd)
1383 sink = id->sinkv[i];
1384 REMOVE_ELEM( id->sinkv, id->sinkc, i );
1388 vlc_mutex_unlock( &id->lock_sink );
1390 CloseRTCP( sink.rtcp );
1391 net_Close( sink.rtp_fd );
1394 /****************************************************************************
1396 ****************************************************************************/
1397 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1398 int b_marker, int64_t i_pts )
1400 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1402 out->p_buffer[0] = 0x80;
1403 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1404 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1405 out->p_buffer[3] = ( id->i_sequence )&0xff;
1406 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1407 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1408 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1409 out->p_buffer[7] = ( i_timestamp )&0xff;
1411 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1417 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1420 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1421 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1423 uint8_t *p_data = in->p_buffer;
1424 int i_data = in->i_buffer;
1427 for( i = 0; i < i_count; i++ )
1429 int i_payload = __MIN( i_max, i_data );
1430 block_t *out = block_New( p_stream, 16 + i_payload );
1432 /* rtp common header */
1433 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1435 out->p_buffer[12] = 0;
1436 out->p_buffer[13] = 0;
1437 /* fragment offset in the current frame */
1438 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1439 out->p_buffer[15] = ( (i*i_max) )&0xff;
1440 memcpy( &out->p_buffer[16], p_data, i_payload );
1442 out->i_buffer = 16 + i_payload;
1443 out->i_dts = in->i_dts + i * in->i_length / i_count;
1444 out->i_length = in->i_length / i_count;
1446 rtp_packetize_send( id, out );
1448 p_data += i_payload;
1449 i_data -= i_payload;
1456 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1459 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1460 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1462 uint8_t *p_data = in->p_buffer;
1463 int i_data = in->i_buffer;
1465 int b_sequence_start = 0;
1466 int i_temporal_ref = 0;
1467 int i_picture_coding_type = 0;
1468 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1469 int b_start_slice = 0;
1471 /* preparse this packet to get some info */
1472 if( in->i_buffer > 4 )
1474 uint8_t *p = p_data;
1475 int i_rest = in->i_buffer;
1479 while( i_rest > 4 &&
1480 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1494 /* sequence start code */
1495 b_sequence_start = 1;
1497 else if( *p == 0x00 && i_rest >= 4 )
1500 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1501 i_picture_coding_type = (p[2] >> 3)&0x07;
1503 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1504 i_picture_coding_type == 3 ) )
1506 i_ffv = (p[3] >> 2)&0x01;
1507 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1508 if( i_rest > 4 && i_picture_coding_type == 3 )
1510 i_fbv = (p[4]>>6)&0x01;
1511 i_bfc = (p[4]>>3)&0x07;
1515 else if( *p <= 0xaf )
1522 for( i = 0; i < i_count; i++ )
1524 int i_payload = __MIN( i_max, i_data );
1525 block_t *out = block_New( p_stream,
1527 uint32_t h = ( i_temporal_ref << 16 )|
1528 ( b_sequence_start << 13 )|
1529 ( b_start_slice << 12 )|
1530 ( i == i_count - 1 ? 1 << 11 : 0 )|
1531 ( i_picture_coding_type << 8 )|
1532 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1534 /* rtp common header */
1535 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1536 in->i_pts > 0 ? in->i_pts : in->i_dts );
1538 /* 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 */
1539 out->p_buffer[12] = ( h >> 24 )&0xff;
1540 out->p_buffer[13] = ( h >> 16 )&0xff;
1541 out->p_buffer[14] = ( h >> 8 )&0xff;
1542 out->p_buffer[15] = ( h )&0xff;
1544 memcpy( &out->p_buffer[16], p_data, i_payload );
1546 out->i_buffer = 16 + i_payload;
1547 out->i_dts = in->i_dts + i * in->i_length / i_count;
1548 out->i_length = in->i_length / i_count;
1550 rtp_packetize_send( id, out );
1552 p_data += i_payload;
1553 i_data -= i_payload;
1559 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1562 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1563 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1565 uint8_t *p_data = in->p_buffer;
1566 int i_data = in->i_buffer;
1569 for( i = 0; i < i_count; i++ )
1571 int i_payload = __MIN( i_max, i_data );
1572 block_t *out = block_New( p_stream, 14 + i_payload );
1574 /* rtp common header */
1575 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1577 out->p_buffer[12] = 1;
1579 out->p_buffer[13] = 0x00;
1581 memcpy( &out->p_buffer[14], p_data, i_payload );
1583 out->i_buffer = 14 + i_payload;
1584 out->i_dts = in->i_dts + i * in->i_length / i_count;
1585 out->i_length = in->i_length / i_count;
1587 rtp_packetize_send( id, out );
1589 p_data += i_payload;
1590 i_data -= i_payload;
1596 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1599 int i_max = id->i_mtu - 12; /* payload max in one packet */
1600 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1602 uint8_t *p_data = in->p_buffer;
1603 int i_data = in->i_buffer;
1606 for( i = 0; i < i_count; i++ )
1608 int i_payload = __MIN( i_max, i_data );
1609 block_t *out = block_New( p_stream, 12 + i_payload );
1611 /* rtp common header */
1612 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1613 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1614 memcpy( &out->p_buffer[12], p_data, i_payload );
1616 out->i_buffer = 12 + i_payload;
1617 out->i_dts = in->i_dts + i * in->i_length / i_count;
1618 out->i_length = in->i_length / i_count;
1620 rtp_packetize_send( id, out );
1622 p_data += i_payload;
1623 i_data -= i_payload;
1630 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1633 int i_max = id->i_mtu - 14; /* payload max in one packet */
1634 int latmhdrsize = in->i_buffer / 0xff + 1;
1635 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1637 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1638 int i_data = in->i_buffer;
1641 for( i = 0; i < i_count; i++ )
1643 int i_payload = __MIN( i_max, i_data );
1648 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1650 /* rtp common header */
1651 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1652 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1656 int tmp = in->i_buffer;
1658 p_header=out->p_buffer+12;
1668 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1670 out->i_buffer = 12 + latmhdrsize + i_payload;
1671 out->i_dts = in->i_dts + i * in->i_length / i_count;
1672 out->i_length = in->i_length / i_count;
1674 rtp_packetize_send( id, out );
1676 p_data += i_payload;
1677 i_data -= i_payload;
1683 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1686 int i_max = id->i_mtu - 12; /* payload max in one packet */
1687 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1689 uint8_t *p_data = in->p_buffer;
1690 int i_data = in->i_buffer;
1695 int i_payload = (__MIN( i_max, i_data )/4)*4;
1696 block_t *out = block_New( p_stream, 12 + i_payload );
1698 /* rtp common header */
1699 rtp_packetize_common( id, out, 0,
1700 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1701 memcpy( &out->p_buffer[12], p_data, i_payload );
1703 out->i_buffer = 12 + i_payload;
1704 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1705 out->i_length = in->i_length / i_count;
1707 rtp_packetize_send( id, out );
1709 p_data += i_payload;
1710 i_data -= i_payload;
1717 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1720 int i_max = id->i_mtu - 12; /* payload max in one packet */
1721 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1723 uint8_t *p_data = in->p_buffer;
1724 int i_data = in->i_buffer;
1729 int i_payload = (__MIN( i_max, i_data )/2)*2;
1730 block_t *out = block_New( p_stream, 12 + i_payload );
1732 /* rtp common header */
1733 rtp_packetize_common( id, out, 0,
1734 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1735 memcpy( &out->p_buffer[12], p_data, i_payload );
1737 out->i_buffer = 12 + i_payload;
1738 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1739 out->i_length = in->i_length / i_count;
1741 rtp_packetize_send( id, out );
1743 p_data += i_payload;
1744 i_data -= i_payload;
1751 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1754 int i_max = id->i_mtu - 16; /* payload max in one packet */
1755 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1757 uint8_t *p_data = in->p_buffer;
1758 int i_data = in->i_buffer;
1761 for( i = 0; i < i_count; i++ )
1763 int i_payload = __MIN( i_max, i_data );
1764 block_t *out = block_New( p_stream, 16 + i_payload );
1766 /* rtp common header */
1767 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1768 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1770 /* AU headers length (bits) */
1771 out->p_buffer[12] = 0;
1772 out->p_buffer[13] = 2*8;
1773 /* for each AU length 13 bits + idx 3bits, */
1774 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1775 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1777 memcpy( &out->p_buffer[16], p_data, i_payload );
1779 out->i_buffer = 16 + i_payload;
1780 out->i_dts = in->i_dts + i * in->i_length / i_count;
1781 out->i_length = in->i_length / i_count;
1783 rtp_packetize_send( id, out );
1785 p_data += i_payload;
1786 i_data -= i_payload;
1794 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1795 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1796 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1799 uint8_t *p_data = in->p_buffer;
1800 int i_data = in->i_buffer;
1802 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1805 int b_v_bit = 0; // no pesky error resilience
1806 int i_plen = 0; // normally plen=0 for PSC packet
1807 int i_pebit = 0; // because plen=0
1812 return VLC_EGENERIC;
1814 if( p_data[0] || p_data[1] )
1816 return VLC_EGENERIC;
1818 /* remove 2 leading 0 bytes */
1821 i_count = ( i_data + i_max - 1 ) / i_max;
1823 for( i = 0; i < i_count; i++ )
1825 int i_payload = __MIN( i_max, i_data );
1826 block_t *out = block_New( p_stream,
1827 RTP_H263_PAYLOAD_START + i_payload );
1828 b_p_bit = (i == 0) ? 1 : 0;
1829 h = ( b_p_bit << 10 )|
1834 /* rtp common header */
1835 //b_m_bit = 1; // always contains end of frame
1836 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1837 in->i_pts > 0 ? in->i_pts : in->i_dts );
1840 out->p_buffer[12] = ( h >> 8 )&0xff;
1841 out->p_buffer[13] = ( h )&0xff;
1842 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1844 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1845 out->i_dts = in->i_dts + i * in->i_length / i_count;
1846 out->i_length = in->i_length / i_count;
1848 rtp_packetize_send( id, out );
1850 p_data += i_payload;
1851 i_data -= i_payload;
1859 rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1860 const uint8_t *p_data, int i_data, int64_t i_pts,
1861 int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1863 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1870 i_nal_hdr = p_data[3];
1871 i_nal_type = i_nal_hdr&0x1f;
1873 /* Skip start code */
1878 if( i_data <= i_max )
1880 /* Single NAL unit packet */
1881 block_t *out = block_New( p_stream, 12 + i_data );
1883 out->i_length = i_length;
1886 rtp_packetize_common( id, out, b_last, i_pts );
1887 out->i_buffer = 12 + i_data;
1889 memcpy( &out->p_buffer[12], p_data, i_data );
1891 rtp_packetize_send( id, out );
1895 /* FU-A Fragmentation Unit without interleaving */
1896 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1902 for( i = 0; i < i_count; i++ )
1904 const int i_payload = __MIN( i_data, i_max-2 );
1905 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1906 out->i_dts = i_dts + i * i_length / i_count;
1907 out->i_length = i_length / i_count;
1910 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1911 out->i_buffer = 14 + i_payload;
1914 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1916 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1917 memcpy( &out->p_buffer[14], p_data, i_payload );
1919 rtp_packetize_send( id, out );
1921 i_data -= i_payload;
1922 p_data += i_payload;
1928 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1931 const uint8_t *p_buffer = in->p_buffer;
1932 int i_buffer = in->i_buffer;
1934 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
1940 /* Split nal units */
1941 while( i_buffer > 4 )
1944 int i_size = i_buffer;
1945 int i_skip = i_buffer;
1947 /* search nal end */
1948 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
1950 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
1952 /* we found another startcode */
1953 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
1958 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
1959 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
1960 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
1961 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
1969 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
1972 int i_max = id->i_mtu - 14; /* payload max in one packet */
1973 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1975 uint8_t *p_data = in->p_buffer;
1976 int i_data = in->i_buffer;
1979 /* Only supports octet-aligned mode */
1980 for( i = 0; i < i_count; i++ )
1982 int i_payload = __MIN( i_max, i_data );
1983 block_t *out = block_New( p_stream, 14 + i_payload );
1985 /* rtp common header */
1986 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1987 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1988 /* Payload header */
1989 out->p_buffer[12] = 0xF0; /* CMR */
1990 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
1992 /* FIXME: are we fed multiple frames ? */
1993 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
1995 out->i_buffer = 14 + i_payload-1;
1996 out->i_dts = in->i_dts + i * in->i_length / i_count;
1997 out->i_length = in->i_length / i_count;
1999 rtp_packetize_send( id, out );
2001 p_data += i_payload;
2002 i_data -= i_payload;
2008 static int rtp_packetize_t140( sout_stream_t *p_stream, sout_stream_id_t *id,
2011 const size_t i_max = id->i_mtu - 12;
2012 const uint8_t *p_data = in->p_buffer;
2013 size_t i_data = in->i_buffer;
2015 for( unsigned i_packet = 0; i_data > 0; i_packet++ )
2017 size_t i_payload = i_data;
2019 /* Make sure we stop on an UTF-8 character boundary
2020 * (assuming the input is valid UTF-8) */
2021 if( i_data > i_max )
2025 while( ( p_data[i_payload] & 0xC0 ) == 0x80 )
2027 if( i_payload == 0 )
2028 return VLC_SUCCESS; /* fishy input! */
2034 block_t *out = block_New( p_stream, 12 + i_payload );
2038 rtp_packetize_common( id, out, 0, in->i_pts + i_packet );
2039 memcpy( out->p_buffer + 12, p_data, i_payload );
2041 out->i_buffer = 12 + i_payload;
2042 out->i_dts = out->i_pts;
2045 rtp_packetize_send( id, out );
2047 p_data += i_payload;
2048 i_data -= i_payload;
2054 /*****************************************************************************
2056 *****************************************************************************/
2058 /** Add an ES to a non-RTP muxed stream */
2059 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
2061 sout_input_t *p_input;
2062 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2063 assert( p_mux != NULL );
2065 p_input = sout_MuxAddStream( p_mux, p_fmt );
2066 if( p_input == NULL )
2068 msg_Err( p_stream, "cannot add this stream to the muxer" );
2072 return (sout_stream_id_t *)p_input;
2076 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
2079 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2080 assert( p_mux != NULL );
2082 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
2087 /** Remove an ES from a non-RTP muxed stream */
2088 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
2090 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2091 assert( p_mux != NULL );
2093 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
2098 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
2099 const block_t *p_buffer )
2101 sout_stream_sys_t *p_sys = p_stream->p_sys;
2102 sout_stream_id_t *id = p_sys->es[0];
2104 int64_t i_dts = p_buffer->i_dts;
2106 uint8_t *p_data = p_buffer->p_buffer;
2107 unsigned int i_data = p_buffer->i_buffer;
2108 unsigned int i_max = id->i_mtu - 12;
2110 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
2114 unsigned int i_size;
2116 /* output complete packet */
2117 if( p_sys->packet &&
2118 p_sys->packet->i_buffer + i_data > i_max )
2120 rtp_packetize_send( id, p_sys->packet );
2121 p_sys->packet = NULL;
2124 if( p_sys->packet == NULL )
2126 /* allocate a new packet */
2127 p_sys->packet = block_New( p_stream, id->i_mtu );
2128 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
2129 p_sys->packet->i_dts = i_dts;
2130 p_sys->packet->i_length = p_buffer->i_length / i_packet;
2131 i_dts += p_sys->packet->i_length;
2134 i_size = __MIN( i_data,
2135 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
2137 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
2140 p_sys->packet->i_buffer += i_size;
2149 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
2152 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
2158 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
2160 p_next = p_buffer->p_next;
2161 block_Release( p_buffer );
2169 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
2171 sout_access_out_t *p_grab;
2173 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
2174 if( p_grab == NULL )
2177 p_grab->p_module = NULL;
2178 p_grab->p_sout = p_stream->p_sout;
2179 p_grab->psz_access = strdup( "grab" );
2180 p_grab->p_cfg = NULL;
2181 p_grab->psz_path = strdup( "" );
2182 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
2183 p_grab->pf_seek = NULL;
2184 p_grab->pf_write = AccessOutGrabberWrite;