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vlc/modules/stream_out/rtp.c
Derk-Jan Hartman 06f5e60542 * include/stream_output.h: add a ip_version field to sap_address_t 
This way we can later on set IP6 instead of IP4 in a SDP.
* modules/stream_out/rtp.c: accept sdp=sap as a valid option.
* src/stream_output/sap.c: 
  - Set the SAP packet Hash headerfield to a unique value based on mtime
    Patch by Philippe van Hecke <philippe at belnet dot be>
  - Set SAP packet IPv6 field to 1 if we are a ipv6 session
  - Made some preperations for setting the origin ip address in the header as well,
    anyone any ideas on how to retrieve the current origin IP address???
2004-08-10 15:02:11 +00:00

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/*****************************************************************************
* rtp.c: rtp stream output module
*****************************************************************************
* Copyright (C) 2003-2004 VideoLAN
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <errno.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>
#include "vlc_httpd.h"
#include "network.h"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define DST_TEXT N_("Destination")
#define DST_LONGTEXT N_( \
"Allows you to specify the output URL used for the streaming output." )
#define SDP_TEXT N_("SDP")
#define SDP_LONGTEXT N_( \
"Allows you to specify the SDP used for the streaming output. " \
"You must use an url: http://location to access the SDP via HTTP, " \
"rtsp://location for RTSP access, and sap:// for the SDP to be " \
"announced via SAP." )
#define MUX_TEXT N_("Muxer")
#define MUX_LONGTEXT N_( \
"Allows you to specify the muxer used for the streaming output." )
#define NAME_TEXT N_("Session name")
#define NAME_LONGTEXT N_( \
"Allows you to specify the session name used for the streaming output." )
#define DESC_TEXT N_("Session description")
#define DESC_LONGTEXT N_( \
"Allows you to give a broader description of the stream." )
#define URL_TEXT N_("Session URL")
#define URL_LONGTEXT N_( \
"Allows you to specify a URL with additional information on the stream." )
#define EMAIL_TEXT N_("Session email")
#define EMAIL_LONGTEXT N_( \
"Allows you to specify contact e-mail address for this session." )
#define PORT_TEXT N_("Port")
#define PORT_LONGTEXT N_( \
"Allows you to specify the base port used for the RTP streaming." )
#define PORT_AUDIO_TEXT N_("Audio port")
#define PORT_AUDIO_LONGTEXT N_( \
"Allows you to specify the default audio port used for the RTP streaming." )
#define PORT_VIDEO_TEXT N_("Video port")
#define PORT_VIDEO_LONGTEXT N_( \
"Allows you to specify the default video port used for the RTP streaming." )
#define TTL_TEXT N_("Time to live")
#define TTL_LONGTEXT N_( \
"Allows you to specify the time to live for the output stream." )
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
#define SOUT_CFG_PREFIX "sout-rtp-"
vlc_module_begin();
set_description( _("RTP stream output") );
set_capability( "sout stream", 0 );
add_shortcut( "rtp" );
add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
DST_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
SDP_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
MUX_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
NAME_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
DESC_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
URL_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
EMAIL_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "port-audio", 1234, NULL, PORT_AUDIO_TEXT,
PORT_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "port-video", 1236, NULL, PORT_VIDEO_TEXT,
PORT_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "port", 1238, NULL, PORT_TEXT,
PORT_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
TTL_LONGTEXT, VLC_TRUE );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Exported prototypes
*****************************************************************************/
static const char *ppsz_sout_options[] = {
"dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
"description", "url","email", NULL
};
static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
static int Del ( sout_stream_t *, sout_stream_id_t * );
static int Send( sout_stream_t *, sout_stream_id_t *,
block_t* );
/* For unicast/interleaved streaming */
typedef struct
{
char *psz_session;
int64_t i_last; /* for timeout */
/* is it in "play" state */
vlc_bool_t b_playing;
/* output (id-access) */
int i_id;
sout_stream_id_t **id;
int i_access;
sout_access_out_t **access;
} rtsp_client_t;
struct sout_stream_sys_t
{
/* sdp */
int64_t i_sdp_id;
int i_sdp_version;
char *psz_sdp;
vlc_mutex_t lock_sdp;
char *psz_session_name;
char *psz_session_description;
char *psz_session_url;
char *psz_session_email;
/* */
vlc_bool_t b_export_sdp_file;
char *psz_sdp_file;
/* sap */
vlc_bool_t b_export_sap;
session_descriptor_t *p_session;
httpd_host_t *p_httpd_host;
httpd_file_t *p_httpd_file;
httpd_host_t *p_rtsp_host;
httpd_url_t *p_rtsp_url;
char *psz_rtsp_control;
char *psz_rtsp_path;
/* */
char *psz_destination;
int i_port;
int i_port_audio;
int i_port_video;
int i_ttl;
/* when need to use a private one or when using muxer */
int i_payload_type;
/* in case we do TS/PS over rtp */
sout_mux_t *p_mux;
sout_access_out_t *p_access;
int i_mtu;
sout_access_out_t *p_grab;
uint16_t i_sequence;
uint32_t i_timestamp_start;
uint8_t ssrc[4];
block_t *packet;
/* */
vlc_mutex_t lock_es;
int i_es;
sout_stream_id_t **es;
/* */
int i_rtsp;
rtsp_client_t **rtsp;
};
typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
block_t * );
struct sout_stream_id_t
{
sout_stream_t *p_stream;
/* rtp field */
uint8_t i_payload_type;
uint16_t i_sequence;
uint32_t i_timestamp_start;
uint8_t ssrc[4];
/* for sdp */
int i_clock_rate;
char *psz_rtpmap;
char *psz_fmtp;
char *psz_destination;
int i_port;
int i_cat;
/* Packetizer specific fields */
pf_rtp_packetizer_t pf_packetize;
int i_mtu;
/* for sending the packets */
sout_access_out_t *p_access;
vlc_mutex_t lock_rtsp;
int i_rtsp_access;
sout_access_out_t **rtsp_access;
/* */
sout_input_t *p_input;
/* RTSP url control */
httpd_url_t *p_rtsp_url;
};
static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
static void SDPHandleUrl( sout_stream_t *, char * );
static int SapSetup( sout_stream_t *p_stream );
static int FileSetup( sout_stream_t *p_stream );
static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
static int RtspSetup( sout_stream_t *p_stream, vlc_url_t * );
static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
httpd_message_t *, httpd_message_t * );
static int RtspCallbackId( httpd_callback_sys_t *, httpd_client_t *,
httpd_message_t *, httpd_message_t * );
static rtsp_client_t *RtspClientNew( sout_stream_t *, char *psz_session );
static rtsp_client_t *RtspClientGet( sout_stream_t *, char *psz_session );
static void RtspClientDel( sout_stream_t *, rtsp_client_t * );
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_instance_t *p_sout = p_stream->p_sout;
sout_stream_sys_t *p_sys;
vlc_value_t val;
sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options, p_stream->p_cfg );
p_sys = malloc( sizeof( sout_stream_sys_t ) );
p_sys->psz_destination = var_GetString( p_stream, SOUT_CFG_PREFIX "dst" );
if( *p_sys->psz_destination == '\0' )
{
free( p_sys->psz_destination );
p_sys->psz_destination = NULL;
}
p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
p_sys->psz_sdp_file = NULL;
if( p_sys->i_port_audio == p_sys->i_port_video )
{
msg_Err( p_stream, "audio and video port cannot be the same" );
p_sys->i_port_audio = 0;
p_sys->i_port_video = 0;
}
if( !p_sys->psz_session_name )
{
if( p_sys->psz_destination )
p_sys->psz_session_name = strdup( p_sys->psz_destination );
else
p_sys->psz_session_name = strdup( "NONE" );
}
if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
{
sout_cfg_t *p_cfg;
vlc_bool_t b_ok = VLC_FALSE;
for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
{
if( !strcmp( p_cfg->psz_name, "sdp" ) )
{
if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
{
b_ok = VLC_TRUE;
break;
}
}
}
if( !b_ok )
{
vlc_value_t val2;
var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
b_ok = VLC_TRUE;
free( val2.psz_string );
}
if( !b_ok )
{
msg_Err( p_stream, "missing destination and not in rtsp mode" );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->psz_destination = NULL;
}
else if( p_sys->i_port <= 0 )
{
msg_Err( p_stream, "invalid port" );
free( p_sys );
return VLC_EGENERIC;
}
var_Get( p_stream, SOUT_CFG_PREFIX "ttl", &val );
p_sys->i_ttl = val.i_int;
p_sys->i_payload_type = 96;
p_sys->i_es = 0;
p_sys->es = NULL;
p_sys->i_rtsp = 0;
p_sys->rtsp = NULL;
p_sys->psz_sdp = NULL;
p_sys->i_sdp_id = mdate();
p_sys->i_sdp_version = 1;
p_sys->psz_sdp = NULL;
p_sys->b_export_sap = VLC_FALSE;
p_sys->b_export_sdp_file = VLC_FALSE;
p_sys->p_session = NULL;
p_sys->p_httpd_host = NULL;
p_sys->p_httpd_file = NULL;
p_sys->p_rtsp_host = NULL;
p_sys->p_rtsp_url = NULL;
p_sys->psz_rtsp_control = NULL;
p_sys->psz_rtsp_path = NULL;
vlc_mutex_init( p_stream, &p_sys->lock_sdp );
vlc_mutex_init( p_stream, &p_sys->lock_es );
p_stream->pf_add = Add;
p_stream->pf_del = Del;
p_stream->pf_send = Send;
p_stream->p_sys = p_sys;
var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
if( *val.psz_string )
{
sout_access_out_t *p_grab;
char *psz_rtpmap;
char access[100];
char url[strlen( p_sys->psz_destination ) + 1 + 12 + 1];
/* Check muxer type */
if( !strncasecmp( val.psz_string, "ps", 2 ) || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
{
psz_rtpmap = "MP2P/90000";
}
else if( !strncasecmp( val.psz_string, "ts", 2 ) )
{
psz_rtpmap = "MP2T/90000";
p_sys->i_payload_type = 33;
}
else
{
msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
return VLC_EGENERIC;
}
/* create the access out */
if( p_sys->i_ttl > 0 )
{
sprintf( access, "udp{raw,ttl=%d}", p_sys->i_ttl );
}
else
{
sprintf( access, "udp{raw}" );
}
sprintf( url, "%s:%d", p_sys->psz_destination, p_sys->i_port );
if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
{
msg_Err( p_stream, "cannot create the access out for %s://%s",
access, url );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
if( p_sys->i_mtu <= 16 )
{
/* better than nothing */
p_sys->i_mtu = 1500;
}
/* the access out grabber TODO export it as sout_AccessOutGrabberNew */
p_grab = p_sys->p_grab =
vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
p_grab->p_module = NULL;
p_grab->p_sout = p_sout;
p_grab->psz_access = strdup( "grab" );
p_grab->p_cfg = NULL;
p_grab->psz_name = strdup( "" );
p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
p_grab->pf_seek = NULL;
p_grab->pf_write = AccessOutGrabberWrite;
/* the muxer */
if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
{
msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
sout_AccessOutDelete( p_sys->p_grab );
sout_AccessOutDelete( p_sys->p_access );
free( p_sys );
return VLC_EGENERIC;
}
/* create the SDP for a muxed stream (only once) */
/* FIXME http://www.faqs.org/rfcs/rfc2327.html
All text fields should be UTF-8 encoded. Use global a:charset to announce this.
o= - should be local username (no spaces allowed)
o= time should be hashed with some other value to garantue uniqueness
o= we need IP6 support?
o= don't use the localhost address. use fully qualified domain name or IP4 address
p= international phone number (pass via vars?)
c= IP6 support
c= /ttl should only be added in case of multicast
a= recvonly (missing)
a= type:broadcast (missing)
a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
a= x-plgroup: (missing)
RTP packets need to get the correct src IP address */
p_sys->psz_sdp =
malloc( 10 + 30 + 10 + strlen( p_sys->psz_session_name ) +
10 + strlen( p_sys->psz_session_description ) + 10 + strlen( p_sys->psz_session_url ) +
10 + strlen( p_sys->psz_session_email ) + 10 + strlen( p_sys->psz_destination ) +
10 + 10 + strlen( PACKAGE_STRING ) +
20 + 10 + 20 + 10 + strlen( psz_rtpmap ) );
sprintf( p_sys->psz_sdp,
"v=0\r\n"
"o=- "I64Fd" %d IN IP4 127.0.0.1\r\n"
"s=%s\r\n"
"i=%s\r\n"
"u=%s\r\n"
"e=%s\r\n"
"t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
"a=tool:"PACKAGE_STRING"\r\n"
"c=IN IP4 %s/%d\r\n"
"m=video %d RTP/AVP %d\r\n"
"a=rtpmap:%d %s\r\n",
p_sys->i_sdp_id, p_sys->i_sdp_version,
p_sys->psz_session_name,
p_sys->psz_session_description,
p_sys->psz_session_url,
p_sys->psz_session_email,
p_sys->psz_destination, p_sys->i_ttl,
p_sys->i_port, p_sys->i_payload_type,
p_sys->i_payload_type, psz_rtpmap );
fprintf( stderr, "sdp=%s", p_sys->psz_sdp );
/* create the rtp context */
p_sys->ssrc[0] = rand()&0xff;
p_sys->ssrc[1] = rand()&0xff;
p_sys->ssrc[2] = rand()&0xff;
p_sys->ssrc[3] = rand()&0xff;
p_sys->i_sequence = rand()&0xffff;
p_sys->i_timestamp_start = rand()&0xffffffff;
p_sys->packet = NULL;
}
else
{
p_sys->p_mux = NULL;
p_sys->p_access = NULL;
p_sys->p_grab = NULL;
}
free( val.psz_string );
var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
if( *val.psz_string )
{
sout_cfg_t *p_cfg;
SDPHandleUrl( p_stream, val.psz_string );
for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
{
if( !strcmp( p_cfg->psz_name, "sdp" ) )
{
if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
continue;
if( !strcmp( p_cfg->psz_value, val.psz_string ) ) /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
continue;
SDPHandleUrl( p_stream, p_cfg->psz_value );
}
}
}
free( val.psz_string );
/* update p_sout->i_out_pace_nocontrol */
p_stream->p_sout->i_out_pace_nocontrol++;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys = p_stream->p_sys;
/* update p_sout->i_out_pace_nocontrol */
p_stream->p_sout->i_out_pace_nocontrol--;
if( p_sys->p_mux )
{
sout_MuxDelete( p_sys->p_mux );
sout_AccessOutDelete( p_sys->p_access );
sout_AccessOutDelete( p_sys->p_grab );
if( p_sys->packet )
{
block_Release( p_sys->packet );
}
}
while( p_sys->i_rtsp > 0 )
{
RtspClientDel( p_stream, p_sys->rtsp[0] );
}
vlc_mutex_destroy( &p_sys->lock_sdp );
if( p_sys->p_httpd_file )
{
httpd_FileDelete( p_sys->p_httpd_file );
}
if( p_sys->p_httpd_host )
{
httpd_HostDelete( p_sys->p_httpd_host );
}
if( p_sys->p_rtsp_url )
{
httpd_UrlDelete( p_sys->p_rtsp_url );
}
if( p_sys->p_rtsp_host )
{
httpd_HostDelete( p_sys->p_rtsp_host );
}
#if 0
/* why? is this disabled? */
if( p_sys->psz_session_name )
{
free( p_sys->psz_session_name );
p_sys->psz_session_name = NULL;
}
if( p_sys->psz_session_description )
{
free( p_sys->psz_session_description );
p_sys->psz_session_description = NULL;
}
if( p_sys->psz_session_url )
{
free( p_sys->psz_session_url );
p_sys->psz_session_url = NULL;
}
if( p_sys->psz_session_email )
{
free( p_sys->psz_session_email );
p_sys->psz_session_email = NULL;
}
#endif
if( p_sys->psz_sdp )
{
free( p_sys->psz_sdp );
}
free( p_sys );
}
/*****************************************************************************
* SDPHandleUrl:
*****************************************************************************/
static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
vlc_url_t url;
vlc_UrlParse( &url, psz_url, 0 );
if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
{
if( p_sys->p_httpd_file )
{
msg_Err( p_stream, "You can used sdp=http:// only once" );
return;
}
if( HttpSetup( p_stream, &url ) )
{
msg_Err( p_stream, "cannot export sdp as http" );
}
}
else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
{
if( p_sys->p_rtsp_url )
{
msg_Err( p_stream, "You can used sdp=rtsp:// only once" );
return;
}
/* FIXME test if destination is multicast or no destination at all FIXME */
if( RtspSetup( p_stream, &url ) )
{
msg_Err( p_stream, "cannot export sdp as rtsp" );
}
}
else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
{
p_sys->b_export_sap = VLC_TRUE;
SapSetup( p_stream );
}
else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
{
if( p_sys->b_export_sdp_file )
{
msg_Err( p_stream, "You can used sdp=file:// only once" );
return;
}
p_sys->b_export_sdp_file = VLC_TRUE;
psz_url = &psz_url[5];
if( psz_url[0] == '/' && psz_url[1] == '/' )
psz_url += 2;
p_sys->psz_sdp_file = strdup( psz_url );
}
else
{
msg_Warn( p_stream, "unknown protocol for SDP (%s)",
url.psz_protocol );
}
vlc_UrlClean( &url );
}
/*****************************************************************************
* SDPGenerate
*****************************************************************************/
/* FIXME http://www.faqs.org/rfcs/rfc2327.html
All text fields should be UTF-8 encoded. Use global a:charset to announce this.
o= - should be local username (no spaces allowed)
o= time should be hashed with some other value to garantue uniqueness
o= we need IP6 support?
o= don't use the localhost address. use fully qualified domain name or IP4 address
p= international phone number (pass via vars?)
c= IP6 support
c= /ttl should only be added in case of multicast
a= recvonly (missing)
a= type:broadcast (missing)
a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
a= x-plgroup: (missing)
RTP packets need to get the correct src IP address */
static char *SDPGenerate( sout_stream_t *p_stream, char *psz_destination, vlc_bool_t b_rtsp )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
int i_size;
char *psz_sdp, *p;
int i;
i_size = strlen( "v=0\r\n" ) +
strlen( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
strlen( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
strlen( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
strlen( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
strlen( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
strlen( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
strlen( "a=tool:"PACKAGE_STRING"\r\n" ) +
strlen( "c=IN IP4 */*\r\n" ) + 20 + 10 +
strlen( psz_destination ? psz_destination : "0.0.0.0") ;
for( i = 0; i < p_sys->i_es; i++ )
{
sout_stream_id_t *id = p_sys->es[i];
i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
if( id->psz_rtpmap )
{
i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
}
if( id->psz_fmtp )
{
i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
}
if( b_rtsp )
{
i_size += strlen( "a=control:*/trackid=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
}
}
p = psz_sdp = malloc( i_size );
p += sprintf( p, "v=0\r\n" );
p += sprintf( p, "o=- "I64Fd" %d IN IP4 127.0.0.1\r\n",
p_sys->i_sdp_id, p_sys->i_sdp_version );
if( *p_sys->psz_session_name )
p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
if( *p_sys->psz_session_description )
p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
if( *p_sys->psz_session_url )
p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
if( *p_sys->psz_session_email )
p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
p += sprintf( p, "c=IN IP4 %s/%d\r\n", psz_destination ? psz_destination : "0.0.0.0",
p_sys->i_ttl );
for( i = 0; i < p_sys->i_es; i++ )
{
sout_stream_id_t *id = p_sys->es[i];
if( id->i_cat == AUDIO_ES )
{
p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
id->i_port, id->i_payload_type );
}
else if( id->i_cat == VIDEO_ES )
{
p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
id->i_port, id->i_payload_type );
}
else
{
continue;
}
if( id->psz_rtpmap )
{
p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
id->psz_rtpmap );
}
if( id->psz_fmtp )
{
p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
id->psz_fmtp );
}
if( b_rtsp )
{
p += sprintf( p, "a=control:%s/trackid=%d\r\n", p_sys->psz_rtsp_control, i );
}
}
return psz_sdp;
}
/*****************************************************************************
*
*****************************************************************************/
static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
{
static const char hex[16] = "0123456789abcdef";
int i;
for( i = 0; i < i_data; i++ )
{
s[2*i+0] = hex[(p_data[i]>>4)&0xf];
s[2*i+1] = hex[(p_data[i] )&0xf];
}
s[2*i_data] = '\0';
}
static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
{
sout_instance_t *p_sout = p_stream->p_sout;
sout_stream_sys_t *p_sys = p_stream->p_sys;
sout_stream_id_t *id;
sout_access_out_t *p_access = NULL;
int i_port;
char *psz_sdp;
if( p_sys->p_mux != NULL )
{
sout_input_t *p_input = NULL;
if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
{
msg_Err( p_stream, "cannot add this stream to the muxer" );
return NULL;
}
id = malloc( sizeof( sout_stream_id_t ) );
memset( id, 0, sizeof( sout_stream_id_t ) );
id->p_access = NULL;
id->p_input = p_input;
id->pf_packetize= NULL;
id->p_rtsp_url = NULL;
id->i_port = 0;
return id;
}
/* Choose the port */
i_port = 0;
if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
{
i_port = p_sys->i_port_audio;
p_sys->i_port_audio = 0;
}
else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
{
i_port = p_sys->i_port_video;
p_sys->i_port_video = 0;
}
while( i_port == 0 )
{
if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
{
i_port = p_sys->i_port;
p_sys->i_port += 2;
break;
}
p_sys->i_port += 2;
}
if( p_sys->psz_destination )
{
char access[100];
char url[strlen( p_sys->psz_destination ) + 1 + 12 + 1];
/* first try to create the access out */
if( p_sys->i_ttl > 0 )
{
sprintf( access, "udp{raw,ttl=%d}", p_sys->i_ttl );
}
else
{
sprintf( access, "udp{raw}" );
}
sprintf( url, "%s:%d", p_sys->psz_destination, i_port );
if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
{
msg_Err( p_stream, "cannot create the access out for %s://%s",
access, url );
return NULL;
}
msg_Dbg( p_stream, "access out %s:%s", access, url );
}
/* not create the rtp specific stuff */
id = malloc( sizeof( sout_stream_id_t ) );
memset( id, 0, sizeof( sout_stream_id_t ) );
id->p_stream = p_stream;
id->p_access = p_access;
id->p_input = NULL;
id->psz_rtpmap = NULL;
id->psz_fmtp = NULL;
id->psz_destination = p_sys->psz_destination ? strdup( p_sys->psz_destination ) : NULL;
id->i_port = i_port;
id->p_rtsp_url = NULL;
vlc_mutex_init( p_stream, &id->lock_rtsp );
id->i_rtsp_access = 0;
id->rtsp_access = NULL;
switch( p_fmt->i_codec )
{
case VLC_FOURCC( 's', '1', '6', 'b' ):
if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
{
id->i_payload_type = 11;
}
else if( p_fmt->audio.i_channels == 2 &&
p_fmt->audio.i_rate == 44100 )
{
id->i_payload_type = 10;
}
else
{
id->i_payload_type = p_sys->i_payload_type++;
}
id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
p_fmt->audio.i_channels );
id->i_clock_rate = p_fmt->audio.i_rate;
id->pf_packetize = rtp_packetize_l16;
break;
case VLC_FOURCC( 'u', '8', ' ', ' ' ):
id->i_payload_type = p_sys->i_payload_type++;
id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
p_fmt->audio.i_channels );
id->i_clock_rate = p_fmt->audio.i_rate;
id->pf_packetize = rtp_packetize_l8;
break;
case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
id->i_payload_type = 14;
id->i_clock_rate = 90000;
id->psz_rtpmap = strdup( "MPA/90000" );
id->pf_packetize = rtp_packetize_mpa;
break;
case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
id->i_payload_type = 32;
id->i_clock_rate = 90000;
id->psz_rtpmap = strdup( "MPV/90000" );
id->pf_packetize = rtp_packetize_mpv;
break;
case VLC_FOURCC( 'a', '5', '2', ' ' ):
id->i_payload_type = p_sys->i_payload_type++;
id->i_clock_rate = 90000;
id->psz_rtpmap = strdup( "ac3/90000" );
id->pf_packetize = rtp_packetize_ac3;
break;
case VLC_FOURCC( 'H', '2', '6', '3' ):
id->i_payload_type = p_sys->i_payload_type++;
id->i_clock_rate = 90000;
id->psz_rtpmap = strdup( "H263-1998/90000" );
id->pf_packetize = rtp_packetize_h263;
break;
case VLC_FOURCC( 'm', 'p', '4', 'v' ):
{
char hexa[2*p_fmt->i_extra +1];
id->i_payload_type = p_sys->i_payload_type++;
id->i_clock_rate = 90000;
id->psz_rtpmap = strdup( "MP4V-ES/90000" );
id->pf_packetize = rtp_packetize_split;
if( p_fmt->i_extra > 0 )
{
id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
sprintf( id->psz_fmtp,
"profile-level-id=3; config=%s;", hexa );
}
break;
}
case VLC_FOURCC( 'm', 'p', '4', 'a' ):
{
char hexa[2*p_fmt->i_extra +1];
id->i_payload_type = p_sys->i_payload_type++;
id->i_clock_rate = p_fmt->audio.i_rate;
id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
id->pf_packetize = rtp_packetize_mp4a;
id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
sprintf( id->psz_fmtp,
"streamtype=5; profile-level-id=15; mode=AAC-hbr; "
"config=%s; SizeLength=13;IndexLength=3; "
"IndexDeltaLength=3; Profile=1;", hexa );
break;
}
default:
msg_Err( p_stream, "cannot add this stream (unsupported "
"codec:%4.4s)", (char*)&p_fmt->i_codec );
free( id );
return NULL;
}
id->i_cat = p_fmt->i_cat;
id->ssrc[0] = rand()&0xff;
id->ssrc[1] = rand()&0xff;
id->ssrc[2] = rand()&0xff;
id->ssrc[3] = rand()&0xff;
id->i_sequence = rand()&0xffff;
id->i_timestamp_start = rand()&0xffffffff;
id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
if( id->i_mtu <= 16 )
{
/* better than nothing */
id->i_mtu = 1500;
}
msg_Dbg( p_stream, "using mtu=%d", id->i_mtu );
if( p_sys->p_rtsp_url )
{
char psz_urlc[strlen( p_sys->psz_rtsp_control ) + 1 + 10];
sprintf( psz_urlc, "%s/trackid=%d", p_sys->psz_rtsp_path, p_sys->i_es );
fprintf( stderr, "rtsp: adding %s\n", psz_urlc );
id->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, psz_urlc, NULL, NULL );
if( id->p_rtsp_url )
{
httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallbackId, (void*)id );
//httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
//httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
}
}
/* Update p_sys context */
vlc_mutex_lock( &p_sys->lock_es );
TAB_APPEND( p_sys->i_es, p_sys->es, id );
vlc_mutex_unlock( &p_sys->lock_es );
psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE );
vlc_mutex_lock( &p_sys->lock_sdp );
free( p_sys->psz_sdp );
p_sys->psz_sdp = psz_sdp;
vlc_mutex_unlock( &p_sys->lock_sdp );
p_sys->i_sdp_version++;
fprintf( stderr, "sdp=%s", p_sys->psz_sdp );
/* Update SDP (sap/file) */
if( p_sys->b_export_sap ) SapSetup( p_stream );
if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
return id;
}
static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
vlc_mutex_lock( &p_sys->lock_es );
TAB_REMOVE( p_sys->i_es, p_sys->es, id );
vlc_mutex_unlock( &p_sys->lock_es );
/* Release port */
if( id->i_port > 0 )
{
if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
p_sys->i_port_audio = id->i_port;
else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
p_sys->i_port_video = id->i_port;
}
if( id->p_access )
{
if( id->psz_rtpmap )
{
free( id->psz_rtpmap );
}
if( id->psz_fmtp )
{
free( id->psz_fmtp );
}
if( id->psz_destination )
free( id->psz_destination );
sout_AccessOutDelete( id->p_access );
}
else if( id->p_input )
{
sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
}
if( id->p_rtsp_url )
{
httpd_UrlDelete( id->p_rtsp_url );
}
vlc_mutex_destroy( &id->lock_rtsp );
if( id->rtsp_access ) free( id->rtsp_access );
/* Update SDP (sap/file) */
if( p_sys->b_export_sap ) SapSetup( p_stream );
if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
free( id );
return VLC_SUCCESS;
}
static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *p_buffer )
{
block_t *p_next;
if( p_stream->p_sys->p_mux )
{
sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
}
else
{
while( p_buffer )
{
p_next = p_buffer->p_next;
if( id->pf_packetize( p_stream, id, p_buffer ) )
{
break;
}
block_Release( p_buffer );
p_buffer = p_next;
}
}
return VLC_SUCCESS;
}
static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
block_t *p_buffer )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
int64_t i_dts = p_buffer->i_dts;
uint32_t i_timestamp = i_dts * 9 / 100;
uint8_t *p_data = p_buffer->p_buffer;
unsigned int i_data = p_buffer->i_buffer;
unsigned int i_max = p_sys->i_mtu - 12;
int i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
while( i_data > 0 )
{
unsigned int i_size;
/* output complete packet */
if( p_sys->packet &&
p_sys->packet->i_buffer + i_data > i_max )
{
sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
p_sys->packet = NULL;
}
if( p_sys->packet == NULL )
{
/* allocate a new packet */
p_sys->packet = block_New( p_stream, p_sys->i_mtu );
p_sys->packet->p_buffer[ 0] = 0x80;
p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
p_sys->packet->i_buffer = 12;
p_sys->packet->i_dts = i_dts;
p_sys->packet->i_length = p_buffer->i_length / i_packet;
i_dts += p_sys->packet->i_length;
p_sys->i_sequence++;
}
i_size = __MIN( i_data, p_sys->i_mtu - p_sys->packet->i_buffer );
memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
p_data, i_size );
p_sys->packet->i_buffer += i_size;
p_data += i_size;
i_data -= i_size;
}
return VLC_SUCCESS;
}
static int AccessOutGrabberWrite( sout_access_out_t *p_access,
block_t *p_buffer )
{
sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
//fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
//
while( p_buffer )
{
block_t *p_next;
AccessOutGrabberWriteBuffer( p_stream, p_buffer );
p_next = p_buffer->p_next;
block_Release( p_buffer );
p_buffer = p_next;
}
return VLC_SUCCESS;
}
/****************************************************************************
* SAP:
****************************************************************************/
static int SapSetup( sout_stream_t *p_stream )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
sout_instance_t *p_sout = p_stream->p_sout;
announce_method_t *p_method = (announce_method_t *)
malloc(sizeof(announce_method_t));
/* Remove the previous session */
if( p_sys->p_session != NULL)
{
sout_AnnounceUnRegister( p_sout, p_sys->p_session);
sout_AnnounceSessionDestroy( p_sys->p_session );
p_sys->p_session = NULL;
}
p_method->i_type = METHOD_TYPE_SAP;
p_method->psz_address = NULL; /* FIXME */
p_method->i_ip_version = 4; /* FIXME ! */
if( p_sys->i_es > 0 && p_sys->psz_sdp && *p_sys->psz_sdp )
{
p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, p_sys->psz_sdp,
p_method );
}
free( p_method );
return VLC_SUCCESS;
}
/****************************************************************************
* File:
****************************************************************************/
static int FileSetup( sout_stream_t *p_stream )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
FILE *f;
if( ( f = fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
{
msg_Err( p_stream, "cannot open file '%s' (%s)",
p_sys->psz_sdp_file, strerror(errno) );
return VLC_EGENERIC;
}
fprintf( f, "%s", p_sys->psz_sdp );
fclose( f );
return VLC_SUCCESS;
}
/****************************************************************************
* HTTP:
****************************************************************************/
static int HttpCallback( httpd_file_sys_t *p_args,
httpd_file_t *, uint8_t *p_request,
uint8_t **pp_data, int *pi_data );
static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port );
if( p_sys->p_httpd_host )
{
p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
url->psz_path ? url->psz_path : "/",
"application/sdp",
NULL, NULL,
HttpCallback, (void*)p_sys );
}
if( p_sys->p_httpd_file == NULL )
{
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int HttpCallback( httpd_file_sys_t *p_args,
httpd_file_t *f, uint8_t *p_request,
uint8_t **pp_data, int *pi_data )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
vlc_mutex_lock( &p_sys->lock_sdp );
if( p_sys->psz_sdp && *p_sys->psz_sdp )
{
*pi_data = strlen( p_sys->psz_sdp );
*pp_data = malloc( *pi_data );
memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
}
else
{
*pp_data = NULL;
*pi_data = 0;
}
vlc_mutex_unlock( &p_sys->lock_sdp );
return VLC_SUCCESS;
}
/****************************************************************************
* RTSP:
****************************************************************************/
static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, char *psz_session )
{
rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t ));
rtsp->psz_session = psz_session;
rtsp->i_last = 0;
rtsp->b_playing = VLC_FALSE;
rtsp->i_id = 0;
rtsp->id = NULL;
rtsp->i_access = 0;
rtsp->access = NULL;
TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
return rtsp;
}
static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, char *psz_session )
{
int i;
for( i = 0; i < p_stream->p_sys->i_rtsp; i++ )
{
if( !strcmp( p_stream->p_sys->rtsp[i]->psz_session, psz_session ) )
{
return p_stream->p_sys->rtsp[i];
}
}
return NULL;
}
static void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp )
{
int i;
TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
for( i = 0; i < rtsp->i_access; i++ )
{
sout_AccessOutDelete( rtsp->access[i] );
}
if( rtsp->id ) free( rtsp->id );
if( rtsp->access ) free( rtsp->access );
free( rtsp->psz_session );
free( rtsp );
}
static int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
fprintf( stderr, "rtsp setup: %s : %d / %s\n", url->psz_host, url->i_port, url->psz_path );
p_sys->p_rtsp_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 554 );
if( p_sys->p_rtsp_host == NULL )
{
return VLC_EGENERIC;
}
p_sys->psz_rtsp_path = strdup( url->psz_path ? url->psz_path : "/" );
p_sys->psz_rtsp_control = malloc (strlen( url->psz_host ) + 20 + strlen( p_sys->psz_rtsp_path ) + 1 );
sprintf( p_sys->psz_rtsp_control, "rtsp://%s:%d%s",
url->psz_host, url->i_port > 0 ? url->i_port : 554, p_sys->psz_rtsp_path );
p_sys->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, p_sys->psz_rtsp_path, NULL, NULL );
if( p_sys->p_rtsp_url == 0 )
{
return VLC_EGENERIC;
}
httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_DESCRIBE, RtspCallback, (void*)p_stream );
httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)p_stream );
return VLC_SUCCESS;
}
static int RtspCallback( httpd_callback_sys_t *p_args,
httpd_client_t *cl,
httpd_message_t *answer, httpd_message_t *query )
{
sout_stream_t *p_stream = (sout_stream_t*)p_args;
sout_stream_sys_t *p_sys = p_stream->p_sys;
char *psz_destination = p_sys->psz_destination;
char *psz_session = NULL;
if( answer == NULL || query == NULL )
{
return VLC_SUCCESS;
}
fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
answer->i_proto = HTTPD_PROTO_RTSP;
answer->i_version= query->i_version;
answer->i_type = HTTPD_MSG_ANSWER;
switch( query->i_type )
{
case HTTPD_MSG_DESCRIBE:
{
char *psz_sdp = SDPGenerate( p_stream, psz_destination ? psz_destination : "0.0.0.0", VLC_TRUE );
answer->i_status = 200;
answer->psz_status = strdup( "OK" );
httpd_MsgAdd( answer, "Content-type", "%s", "application/sdp" );
answer->p_body = psz_sdp;
answer->i_body = strlen( psz_sdp );
break;
}
case HTTPD_MSG_PLAY:
{
rtsp_client_t *rtsp;
/* for now only multicast so easy */
answer->i_status = 200;
answer->psz_status = strdup( "OK" );
answer->i_body = 0;
answer->p_body = NULL;
psz_session = httpd_MsgGet( query, "Session" );
rtsp = RtspClientGet( p_stream, psz_session );
if( rtsp && !rtsp->b_playing )
{
int i_id;
/* FIXME */
rtsp->b_playing = VLC_TRUE;
vlc_mutex_lock( &p_sys->lock_es );
for( i_id = 0; i_id < rtsp->i_id; i_id++ )
{
sout_stream_id_t *id = rtsp->id[i_id];
int i;
for( i = 0; i < p_sys->i_es; i++ )
{
if( id == p_sys->es[i] )
break;
}
if( i >= p_sys->i_es ) continue;
vlc_mutex_lock( &id->lock_rtsp );
TAB_APPEND( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
vlc_mutex_unlock( &id->lock_rtsp );
}
vlc_mutex_unlock( &p_sys->lock_es );
}
break;
}
case HTTPD_MSG_PAUSE:
/* FIXME */
return VLC_EGENERIC;
case HTTPD_MSG_TEARDOWN:
{
rtsp_client_t *rtsp;
/* for now only multicast so easy again */
answer->i_status = 200;
answer->psz_status = strdup( "OK" );
answer->i_body = 0;
answer->p_body = NULL;
psz_session = httpd_MsgGet( query, "Session" );
rtsp = RtspClientGet( p_stream, psz_session );
if( rtsp )
{
int i_id;
vlc_mutex_lock( &p_sys->lock_es );
for( i_id = 0; i_id < rtsp->i_id; i_id++ )
{
sout_stream_id_t *id = rtsp->id[i_id];
int i;
for( i = 0; i < p_sys->i_es; i++ )
{
if( id == p_sys->es[i] )
break;
}
if( i >= p_sys->i_es ) continue;
vlc_mutex_lock( &id->lock_rtsp );
TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
vlc_mutex_unlock( &id->lock_rtsp );
}
vlc_mutex_unlock( &p_sys->lock_es );
RtspClientDel( p_stream, rtsp );
}
break;
}
default:
return VLC_EGENERIC;
}
httpd_MsgAdd( answer, "Server", "VLC Server" );
httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
httpd_MsgAdd( answer, "Cseq", "%d", atoi( httpd_MsgGet( query, "Cseq" ) ) );
httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
if( psz_session )
{
httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session );
}
return VLC_SUCCESS;
}
static int RtspCallbackId( httpd_callback_sys_t *p_args,
httpd_client_t *cl,
httpd_message_t *answer, httpd_message_t *query )
{
sout_stream_id_t *id = (sout_stream_id_t*)p_args;
sout_stream_t *p_stream = id->p_stream;
sout_stream_sys_t *p_sys = p_stream->p_sys;
char *psz_session = NULL;
if( answer == NULL || query == NULL )
{
return VLC_SUCCESS;
}
fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
answer->i_proto = HTTPD_PROTO_RTSP;
answer->i_version= query->i_version;
answer->i_type = HTTPD_MSG_ANSWER;
switch( query->i_type )
{
case HTTPD_MSG_SETUP:
{
char *psz_transport = httpd_MsgGet( query, "Transport" );
fprintf( stderr, "HTTPD_MSG_SETUP: transport=%s\n", psz_transport );
if( strstr( psz_transport, "multicast" ) && id->psz_destination )
{
fprintf( stderr, "HTTPD_MSG_SETUP: multicast\n" );
answer->i_status = 200;
answer->psz_status = strdup( "OK" );
answer->i_body = 0;
answer->p_body = NULL;
psz_session = httpd_MsgGet( query, "Session" );
if( *psz_session == 0 )
{
psz_session = malloc( 100 );
sprintf( psz_session, "%d", rand() );
}
httpd_MsgAdd( answer, "Transport",
"RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d",
id->psz_destination, id->i_port,id->i_port+1, p_sys->i_ttl );
}
else if( strstr( psz_transport, "unicast" ) && strstr( psz_transport, "client_port=" ) )
{
int i_port = atoi( strstr( psz_transport, "client_port=" ) + strlen("client_port=") );
char *ip = httpd_ClientIP( cl );
char psz_access[100];
char psz_url[100];
sout_access_out_t *p_access;
rtsp_client_t *rtsp = NULL;
if( ip == NULL )
{
answer->i_status = 400;
answer->psz_status = strdup( "Internal server error" );
answer->i_body = 0;
answer->p_body = NULL;
break;
}
fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%d\n",
ip, i_port );
psz_session = httpd_MsgGet( query, "Session" );
if( *psz_session == 0 )
{
psz_session = malloc( 100 );
sprintf( psz_session, "%d", rand() );
rtsp = RtspClientNew( p_stream, psz_session );
}
else
{
rtsp = RtspClientGet( p_stream, psz_session );
if( rtsp == NULL )
{
/* FIXME right error code */
answer->i_status = 400;
answer->psz_status = strdup( "Unknown session id" );
answer->i_body = 0;
answer->p_body = NULL;
free( ip );
break;
}
}
/* first try to create the access out */
if( p_sys->i_ttl > 0 )
sprintf( psz_access, "udp{raw,ttl=%d}", p_sys->i_ttl );
else
sprintf( psz_access, "udp{raw}" );
sprintf( psz_url, "%s:%d", ip, i_port );
free( ip );
if( ( p_access = sout_AccessOutNew( p_stream->p_sout, psz_access, psz_url ) ) == NULL )
{
msg_Err( p_stream, "cannot create the access out for %s://%s",
psz_access, psz_url );
answer->i_status = 400;
answer->psz_status = strdup( "Server internal error" );
answer->i_body = 0;
answer->p_body = NULL;
break;
}
TAB_APPEND( rtsp->i_id, rtsp->id, id );
TAB_APPEND( rtsp->i_access, rtsp->access, p_access );
answer->i_status = 200;
answer->psz_status = strdup( "OK" );
answer->i_body = 0;
answer->p_body = NULL;
httpd_MsgAdd( answer, "Transport",
"RTP/AVP/UDP;client_port=%d-%d", i_port, i_port + 1 );
}
else /* TODO strstr( psz_transport, "interleaved" ) ) */
{
answer->i_status = 400;
answer->psz_status = strdup( "Bad Request" );
answer->i_body = 0;
answer->p_body = NULL;
}
break;
}
default:
return VLC_EGENERIC;
}
httpd_MsgAdd( answer, "Server", "VLC Server" );
httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
httpd_MsgAdd( answer, "Cseq", "%d", atoi( httpd_MsgGet( query, "Cseq" ) ) );
httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
if( psz_session )
{
httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
}
return VLC_SUCCESS;
}
/****************************************************************************
* rtp_packetize_*:
****************************************************************************/
static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
int b_marker, int64_t i_pts )
{
uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
out->p_buffer[0] = 0x80;
out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
out->p_buffer[3] = ( id->i_sequence )&0xff;
out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
out->p_buffer[7] = ( i_timestamp )&0xff;
out->p_buffer[ 8] = id->ssrc[0];
out->p_buffer[ 9] = id->ssrc[1];
out->p_buffer[10] = id->ssrc[2];
out->p_buffer[11] = id->ssrc[3];
out->i_buffer = 12;
id->i_sequence++;
}
static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
{
int i;
vlc_mutex_lock( &id->lock_rtsp );
for( i = 0; i < id->i_rtsp_access; i++ )
{
sout_AccessOutWrite( id->rtsp_access[i], block_Duplicate( out ) );
}
vlc_mutex_unlock( &id->lock_rtsp );
if( id->p_access )
{
sout_AccessOutWrite( id->p_access, out );
}
else
{
block_Release( out );
}
}
static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream, 16 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
/* mbz set to 0 */
out->p_buffer[12] = 0;
out->p_buffer[13] = 0;
/* fragment offset in the current frame */
out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
out->p_buffer[15] = ( (i*i_max) )&0xff;
memcpy( &out->p_buffer[16], p_data, i_payload );
out->i_buffer = 16 + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
/* rfc2250 */
static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
int b_sequence_start = 0;
int i_temporal_ref = 0;
int i_picture_coding_type = 0;
int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
int b_start_slice = 0;
/* preparse this packet to get some info */
if( in->i_buffer > 4 )
{
uint8_t *p = p_data;
int i_rest = in->i_buffer;
for( ;; )
{
while( i_rest > 4 &&
( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
{
p++;
i_rest--;
}
if( i_rest <= 4 )
{
break;
}
p += 3;
i_rest -= 4;
if( *p == 0xb3 )
{
/* sequence start code */
b_sequence_start = 1;
}
else if( *p == 0x00 && i_rest >= 4 )
{
/* picture */
i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
i_picture_coding_type = (p[2] >> 3)&0x07;
if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
i_picture_coding_type == 3 ) )
{
i_ffv = (p[3] >> 2)&0x01;
i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
if( i_rest > 4 && i_picture_coding_type == 3 )
{
i_fbv = (p[4]>>6)&0x01;
i_bfc = (p[4]>>3)&0x07;
}
}
}
else if( *p <= 0xaf )
{
b_start_slice = 1;
}
}
}
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream,
16 + i_payload );
uint32_t h = ( i_temporal_ref << 16 )|
( b_sequence_start << 13 )|
( b_start_slice << 12 )|
( i == i_count - 1 ? 1 << 11 : 0 )|
( i_picture_coding_type << 8 )|
( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
in->i_pts > 0 ? in->i_pts : in->i_dts );
/* 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 */
out->p_buffer[12] = ( h >> 24 )&0xff;
out->p_buffer[13] = ( h >> 16 )&0xff;
out->p_buffer[14] = ( h >> 8 )&0xff;
out->p_buffer[15] = ( h )&0xff;
memcpy( &out->p_buffer[16], p_data, i_payload );
out->i_buffer = 16 + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream, 14 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
/* unit count */
out->p_buffer[12] = 1;
/* unit header */
out->p_buffer[13] = 0x00;
/* data */
memcpy( &out->p_buffer[14], p_data, i_payload );
out->i_buffer = 14 + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream, 12 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
(in->i_pts > 0 ? in->i_pts : in->i_dts) );
memcpy( &out->p_buffer[12], p_data, i_payload );
out->i_buffer = 12 + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i_packet = 0;
while( i_data > 0 )
{
int i_payload = (__MIN( i_max, i_data )/4)*4;
block_t *out = block_New( p_stream, 12 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, 0,
(in->i_pts > 0 ? in->i_pts : in->i_dts) );
memcpy( &out->p_buffer[12], p_data, i_payload );
out->i_buffer = 12 + i_payload;
out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
i_packet++;
}
return VLC_SUCCESS;
}
static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 12; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i_packet = 0;
while( i_data > 0 )
{
int i_payload = (__MIN( i_max, i_data )/2)*2;
block_t *out = block_New( p_stream, 12 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, 0,
(in->i_pts > 0 ? in->i_pts : in->i_dts) );
memcpy( &out->p_buffer[12], p_data, i_payload );
out->i_buffer = 12 + i_payload;
out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
i_packet++;
}
return VLC_SUCCESS;
}
static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
int i_max = id->i_mtu - 16; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream, 16 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
(in->i_pts > 0 ? in->i_pts : in->i_dts) );
/* AU headers */
/* AU headers length (bits) */
out->p_buffer[12] = 0;
out->p_buffer[13] = 2*8;
/* for each AU length 13 bits + idx 3bits, */
out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
memcpy( &out->p_buffer[16], p_data, i_payload );
out->i_buffer = 16 + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
/* rfc2429 */
#define RTP_H263_HEADER_SIZE (2) // plen = 0
#define RTP_H263_PAYLOAD_START (14) // plen = 0
static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *in )
{
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
int i;
int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
int i_count;
int b_p_bit;
int b_v_bit = 0; // no pesky error resilience
int i_plen = 0; // normally plen=0 for PSC packet
int i_pebit = 0; // because plen=0
uint16_t h;
if( i_data < 2 )
{
return VLC_EGENERIC;
}
if( p_data[0] || p_data[1] )
{
return VLC_EGENERIC;
}
/* remove 2 leading 0 bytes */
p_data += 2;
i_data -= 2;
i_count = ( i_data + i_max - 1 ) / i_max;
for( i = 0; i < i_count; i++ )
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_New( p_stream,
RTP_H263_PAYLOAD_START + i_payload );
b_p_bit = (i == 0) ? 1 : 0;
h = ( b_p_bit << 10 )|
( b_v_bit << 9 )|
( i_plen << 3 )|
i_pebit;
/* rtp common header */
//b_m_bit = 1; // always contains end of frame
rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
in->i_pts > 0 ? in->i_pts : in->i_dts );
/* h263 header */
out->p_buffer[12] = ( h >> 8 )&0xff;
out->p_buffer[13] = ( h )&0xff;
memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
out->i_dts = in->i_dts + i * in->i_length / i_count;
out->i_length = in->i_length / i_count;
rtp_packetize_send( id, out );
p_data += i_payload;
i_data -= i_payload;
}
return VLC_SUCCESS;
}
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