]> git.sesse.net Git - vlc/blobdiff - src/stream_output/stream_output.c
Removes trailing spaces. Removes tabs.
[vlc] / src / stream_output / stream_output.c
index d59a4b823b65c899f90d961184eb9d0155ed7490..d200fc0e95efef118c3919f52450b326c48db9ca 100644 (file)
@@ -1,10 +1,12 @@
 /*****************************************************************************
  * stream_output.c : stream output module
  *****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: stream_output.c,v 1.3 2002/08/14 10:18:40 ipkiss Exp $
+ * Copyright (C) 2002-2007 the VideoLAN team
+ * $Id$
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
+ *          Laurent Aimar <fenrir@via.ecp.fr>
+ *          Eric Petit <titer@videolan.org>
  *
  * 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
  *
  * 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
-#include <errno.h>                                                 /* ENOMEM */
+
+#include <vlc/vlc.h>
+
 #include <stdlib.h>                                                /* free() */
 #include <stdio.h>                                              /* sprintf() */
 #include <string.h>                                            /* strerror() */
 
-#include <vlc/vlc.h>
+#include <vlc_sout.h>
+#include <vlc_playlist.h>
+
+#include "stream_output.h"
 
-#include <vlc/sout.h>
+#include <vlc_meta.h>
 
+#include "input/input_internal.h"
+
+#undef DEBUG_BUFFER
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
-static int      InitInstance      ( sout_instance_t * );
+#define sout_stream_url_to_chain( p, s ) \
+    _sout_stream_url_to_chain( VLC_OBJECT(p), s )
+static char *_sout_stream_url_to_chain( vlc_object_t *, char * );
+
+/*
+ * Generic MRL parser
+ *
+ */
+
+typedef struct
+{
+    char *psz_access;
+    char *psz_way;
+    char *psz_name;
+} mrl_t;
+
+/* mrl_Parse: parse psz_mrl and fill p_mrl */
+static int  mrl_Parse( mrl_t *p_mrl, const char *psz_mrl );
+/* mrl_Clean: clean p_mrl  after a call to mrl_Parse */
+static void mrl_Clean( mrl_t *p_mrl );
 
 /*****************************************************************************
  * sout_NewInstance: creates a new stream output instance
  *****************************************************************************/
-sout_instance_t * __sout_NewInstance ( vlc_object_t *p_parent,
-                                       char * psz_dest )
+sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, char * psz_dest )
 {
-    sout_instance_t * p_sout;
+    sout_instance_t *p_sout;
 
-    /* Allocate descriptor */
+    /* *** Allocate descriptor *** */
     p_sout = vlc_object_create( p_parent, VLC_OBJECT_SOUT );
     if( p_sout == NULL )
     {
@@ -54,9 +82,37 @@ sout_instance_t * __sout_NewInstance ( vlc_object_t *p_parent,
         return NULL;
     }
 
-    p_sout->psz_dest = psz_dest;
-    if ( InitInstance( p_sout ) == -1 )
+    /* *** init descriptor *** */
+    p_sout->psz_sout    = strdup( psz_dest );
+    p_sout->p_meta      = NULL;
+    p_sout->i_out_pace_nocontrol = 0;
+    p_sout->p_sys       = NULL;
+
+    vlc_mutex_init( p_sout, &p_sout->lock );
+    if( psz_dest && psz_dest[0] == '#' )
+    {
+        p_sout->psz_chain = strdup( &psz_dest[1] );
+    }
+    else
+    {
+        p_sout->psz_chain = sout_stream_url_to_chain( p_sout, psz_dest );
+        msg_Dbg( p_sout, "using sout chain=`%s'", p_sout->psz_chain );
+    }
+    p_sout->p_stream = NULL;
+
+    /* attach it for inherit */
+    vlc_object_attach( p_sout, p_parent );
+
+    p_sout->p_stream = sout_StreamNew( p_sout, p_sout->psz_chain );
+
+    if( p_sout->p_stream == NULL )
     {
+        msg_Err( p_sout, "stream chain failed for `%s'", p_sout->psz_chain );
+
+        FREENULL( p_sout->psz_sout );
+        FREENULL( p_sout->psz_chain );
+
+        vlc_object_detach( p_sout );
         vlc_object_destroy( p_sout );
         return NULL;
     }
@@ -65,32 +121,498 @@ sout_instance_t * __sout_NewInstance ( vlc_object_t *p_parent,
 }
 
 /*****************************************************************************
- * InitInstance: opens appropriate modules
+ * sout_DeleteInstance: delete a previously allocated instance
  *****************************************************************************/
-static int InitInstance( sout_instance_t * p_sout )
+void sout_DeleteInstance( sout_instance_t * p_sout )
 {
-    /* Parse dest string. Syntax : [[<access>][/<mux>]:][<dest>] */
-    /* This code is identical to input.c:InitThread. FIXME : factorize it ? */
-    char * psz_parser = p_sout->psz_dest;
+    /* remove the stream out chain */
+    sout_StreamDelete( p_sout->p_stream );
+
+    /* *** free all string *** */
+    FREENULL( p_sout->psz_sout );
+    FREENULL( p_sout->psz_chain );
+
+    /* delete meta */
+    if( p_sout->p_meta )
+    {
+        vlc_meta_Delete( p_sout->p_meta );
+    }
+
+    vlc_mutex_destroy( &p_sout->lock );
+
+    /* *** free structure *** */
+    vlc_object_destroy( p_sout );
+}
+
+/*****************************************************************************
+ * Packetizer/Input
+ *****************************************************************************/
+sout_packetizer_input_t *sout_InputNew( sout_instance_t *p_sout,
+                                        es_format_t *p_fmt )
+{
+    sout_packetizer_input_t *p_input;
+
+    msg_Dbg( p_sout, "adding a new input" );
+
+    /* *** create a packetizer input *** */
+    p_input         = malloc( sizeof( sout_packetizer_input_t ) );
+    p_input->p_sout = p_sout;
+    p_input->p_fmt  = p_fmt;
+
+    if( p_fmt->i_codec == VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
+    {
+        vlc_object_release( p_sout );
+        return p_input;
+    }
+
+    /* *** add it to the stream chain */
+    vlc_mutex_lock( &p_sout->lock );
+    p_input->id = p_sout->p_stream->pf_add( p_sout->p_stream, p_fmt );
+    vlc_mutex_unlock( &p_sout->lock );
+
+    if( p_input->id == NULL )
+    {
+        free( p_input );
+        return NULL;
+    }
+
+    return( p_input );
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+int sout_InputDelete( sout_packetizer_input_t *p_input )
+{
+    sout_instance_t     *p_sout = p_input->p_sout;
+
+    msg_Dbg( p_sout, "removing an input" );
+
+    if( p_input->p_fmt->i_codec != VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
+    {
+        vlc_mutex_lock( &p_sout->lock );
+        p_sout->p_stream->pf_del( p_sout->p_stream, p_input->id );
+        vlc_mutex_unlock( &p_sout->lock );
+    }
+
+    free( p_input );
+
+    return( VLC_SUCCESS);
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+int sout_InputSendBuffer( sout_packetizer_input_t *p_input,
+                          block_t *p_buffer )
+{
+    sout_instance_t     *p_sout = p_input->p_sout;
+    int                 i_ret;
+
+    if( p_input->p_fmt->i_codec == VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
+    {
+        block_Release( p_buffer );
+        return VLC_SUCCESS;
+    }
+    if( p_buffer->i_dts <= 0 )
+    {
+        msg_Warn( p_sout, "trying to send non-dated packet to stream output!");
+        block_Release( p_buffer );
+        return VLC_SUCCESS;
+    }
+
+    vlc_mutex_lock( &p_sout->lock );
+    i_ret = p_sout->p_stream->pf_send( p_sout->p_stream,
+                                       p_input->id, p_buffer );
+    vlc_mutex_unlock( &p_sout->lock );
+
+    return i_ret;
+}
+
+/*****************************************************************************
+ * sout_AccessOutNew: allocate a new access out
+ *****************************************************************************/
+sout_access_out_t *sout_AccessOutNew( sout_instance_t *p_sout,
+                                      const char *psz_access, const char *psz_name )
+{
+    sout_access_out_t *p_access;
+    char              *psz_next;
+
+    if( !( p_access = vlc_object_create( p_sout,
+                                         sizeof( sout_access_out_t ) ) ) )
+    {
+        msg_Err( p_sout, "out of memory" );
+        return NULL;
+    }
+
+    psz_next = config_ChainCreate( &p_access->psz_access, &p_access->p_cfg,
+                                   psz_access );
+    if( psz_next )
+    {
+        free( psz_next );
+    }
+    p_access->psz_path   = strdup( psz_name ? psz_name : "" );
+    p_access->p_sout     = p_sout;
+    p_access->p_sys = NULL;
+    p_access->pf_seek    = NULL;
+    p_access->pf_read    = NULL;
+    p_access->pf_write   = NULL;
+    p_access->pf_control = NULL;
+    p_access->p_module   = NULL;
+
+    p_access->i_writes = 0;
+    p_access->i_sent_bytes = 0;
+
+    vlc_object_attach( p_access, p_sout );
+
+    p_access->p_module   =
+        module_Need( p_access, "sout access", p_access->psz_access, VLC_TRUE );
+
+    if( !p_access->p_module )
+    {
+        free( p_access->psz_access );
+        free( p_access->psz_path );
+        vlc_object_detach( p_access );
+        vlc_object_destroy( p_access );
+        return( NULL );
+    }
+
+    return p_access;
+}
+/*****************************************************************************
+ * sout_AccessDelete: delete an access out
+ *****************************************************************************/
+void sout_AccessOutDelete( sout_access_out_t *p_access )
+{
+    vlc_object_detach( p_access );
+    if( p_access->p_module )
+    {
+        module_Unneed( p_access, p_access->p_module );
+    }
+    free( p_access->psz_access );
+
+    config_ChainDestroy( p_access->p_cfg );
+
+    free( p_access->psz_path );
+
+    vlc_object_destroy( p_access );
+}
+
+/*****************************************************************************
+ * sout_AccessSeek:
+ *****************************************************************************/
+int sout_AccessOutSeek( sout_access_out_t *p_access, off_t i_pos )
+{
+    return p_access->pf_seek( p_access, i_pos );
+}
+
+/*****************************************************************************
+ * sout_AccessRead:
+ *****************************************************************************/
+int sout_AccessOutRead( sout_access_out_t *p_access, block_t *p_buffer )
+{
+    return( p_access->pf_read ?
+            p_access->pf_read( p_access, p_buffer ) : VLC_EGENERIC );
+}
+
+/*****************************************************************************
+ * sout_AccessWrite:
+ *****************************************************************************/
+int sout_AccessOutWrite( sout_access_out_t *p_access, block_t *p_buffer )
+{
+    int i_total = 0;
+    p_access->i_writes++;
+    p_access->i_sent_bytes += p_buffer->i_buffer;
+    if( p_access->p_libvlc->b_stats && p_access->i_writes % 30 == 0 )
+    {
+        /* Access_out -> sout_instance -> input_thread_t */
+        input_thread_t *p_input =
+            (input_thread_t *)vlc_object_find( p_access, VLC_OBJECT_INPUT,
+                                               FIND_PARENT );
+        if( p_input )
+        {
+            stats_UpdateInteger( p_input, p_input->p->counters.p_sout_sent_packets,
+                     30, NULL );
+            stats_UpdateInteger( p_input, p_input->p->counters.p_sout_sent_bytes,
+                                 p_access->i_sent_bytes, &i_total );
+            stats_UpdateFloat( p_input, p_input->p->counters.p_sout_send_bitrate,
+                    (float)i_total, NULL );
+            p_access->i_sent_bytes = 0;
+            vlc_object_release( p_input );
+        }
+    }
+    return p_access->pf_write( p_access, p_buffer );
+}
+
+/**
+ * sout_AccessOutControl
+ */
+int sout_AccessOutControl (sout_access_out_t *access, int query, va_list args)
+{
+    return (access->pf_control) ? access->pf_control (access, query, args)
+                                : VLC_EGENERIC;
+}
+
+/*****************************************************************************
+ * sout_MuxNew: create a new mux
+ *****************************************************************************/
+sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, char *psz_mux,
+                          sout_access_out_t *p_access )
+{
+    sout_mux_t *p_mux;
+    char       *psz_next;
+
+    p_mux = vlc_object_create( p_sout, sizeof( sout_mux_t ) );
+    if( p_mux == NULL )
+    {
+        msg_Err( p_sout, "out of memory" );
+        return NULL;
+    }
+
+    p_mux->p_sout = p_sout;
+    psz_next = config_ChainCreate( &p_mux->psz_mux, &p_mux->p_cfg, psz_mux );
+    if( psz_next ) free( psz_next );
+
+    p_mux->p_access     = p_access;
+    p_mux->pf_control   = NULL;
+    p_mux->pf_addstream = NULL;
+    p_mux->pf_delstream = NULL;
+    p_mux->pf_mux       = NULL;
+    p_mux->i_nb_inputs  = 0;
+    p_mux->pp_inputs    = NULL;
+
+    p_mux->p_sys        = NULL;
+    p_mux->p_module     = NULL;
+
+    p_mux->b_add_stream_any_time = VLC_FALSE;
+    p_mux->b_waiting_stream = VLC_TRUE;
+    p_mux->i_add_stream_start = -1;
+
+    vlc_object_attach( p_mux, p_sout );
+
+    p_mux->p_module =
+        module_Need( p_mux, "sout mux", p_mux->psz_mux, VLC_TRUE );
+
+    if( p_mux->p_module == NULL )
+    {
+        FREENULL( p_mux->psz_mux );
+
+        vlc_object_detach( p_mux );
+        vlc_object_destroy( p_mux );
+        return NULL;
+    }
+
+    /* *** probe mux capacity *** */
+    if( p_mux->pf_control )
+    {
+        int b_answer = VLC_FALSE;
+
+        if( sout_MuxControl( p_mux, MUX_CAN_ADD_STREAM_WHILE_MUXING,
+                             &b_answer ) )
+        {
+            b_answer = VLC_FALSE;
+        }
+
+        if( b_answer )
+        {
+            msg_Dbg( p_sout, "muxer support adding stream at any time" );
+            p_mux->b_add_stream_any_time = VLC_TRUE;
+            p_mux->b_waiting_stream = VLC_FALSE;
 
-    /* Skip the plug-in names */
+            /* If we control the output pace then it's better to wait before
+             * starting muxing (generates better streams/files). */
+            if( !p_sout->i_out_pace_nocontrol )
+            {
+                b_answer = VLC_TRUE;
+            }
+            else if( sout_MuxControl( p_mux, MUX_GET_ADD_STREAM_WAIT,
+                                      &b_answer ) )
+            {
+                b_answer = VLC_FALSE;
+            }
+
+            if( b_answer )
+            {
+                msg_Dbg( p_sout, "muxer prefers to wait for all ES before "
+                         "starting to mux" );
+                p_mux->b_waiting_stream = VLC_TRUE;
+            }
+        }
+    }
+
+    return p_mux;
+}
+
+/*****************************************************************************
+ * sout_MuxDelete:
+ *****************************************************************************/
+void sout_MuxDelete( sout_mux_t *p_mux )
+{
+    vlc_object_detach( p_mux );
+    if( p_mux->p_module )
+    {
+        module_Unneed( p_mux, p_mux->p_module );
+    }
+    free( p_mux->psz_mux );
+
+    config_ChainDestroy( p_mux->p_cfg );
+
+    vlc_object_destroy( p_mux );
+}
+
+/*****************************************************************************
+ * sout_MuxAddStream:
+ *****************************************************************************/
+sout_input_t *sout_MuxAddStream( sout_mux_t *p_mux, es_format_t *p_fmt )
+{
+    sout_input_t *p_input;
+
+    if( !p_mux->b_add_stream_any_time && !p_mux->b_waiting_stream )
+    {
+        msg_Err( p_mux, "cannot add a new stream (unsupported while muxing "
+                        "to this format)" );
+        return NULL;
+    }
+
+    msg_Dbg( p_mux, "adding a new input" );
+
+    /* create a new sout input */
+    p_input = malloc( sizeof( sout_input_t ) );
+    p_input->p_sout = p_mux->p_sout;
+    p_input->p_fmt  = p_fmt;
+    p_input->p_fifo = block_FifoNew( p_mux->p_sout );
+    p_input->p_sys  = NULL;
+
+    TAB_APPEND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
+    if( p_mux->pf_addstream( p_mux, p_input ) < 0 )
+    {
+            msg_Err( p_mux, "cannot add this stream" );
+            TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
+            block_FifoRelease( p_input->p_fifo );
+            free( p_input );
+            return NULL;
+    }
+
+    return p_input;
+}
+
+/*****************************************************************************
+ * sout_MuxDeleteStream:
+ *****************************************************************************/
+void sout_MuxDeleteStream( sout_mux_t *p_mux, sout_input_t *p_input )
+{
+    int i_index;
+
+    if( p_mux->b_waiting_stream && p_input->p_fifo->i_depth > 0 )
+    {
+        /* We stop waiting, and call the muxer for taking care of the data
+         * before we remove this es */
+        p_mux->b_waiting_stream = VLC_FALSE;
+        p_mux->pf_mux( p_mux );
+    }
+
+    TAB_FIND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input, i_index );
+    if( i_index >= 0 )
+    {
+        if( p_mux->pf_delstream( p_mux, p_input ) < 0 )
+        {
+            msg_Err( p_mux, "cannot delete this stream from mux" );
+        }
+
+        /* remove the entry */
+        TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
+
+        if( p_mux->i_nb_inputs == 0 )
+        {
+            msg_Warn( p_mux, "no more input streams for this mux" );
+        }
+
+        block_FifoRelease( p_input->p_fifo );
+        free( p_input );
+    }
+}
+
+/*****************************************************************************
+ * sout_MuxSendBuffer:
+ *****************************************************************************/
+void sout_MuxSendBuffer( sout_mux_t *p_mux, sout_input_t *p_input,
+                         block_t *p_buffer )
+{
+    block_FifoPut( p_input->p_fifo, p_buffer );
+
+    if( p_mux->p_sout->i_out_pace_nocontrol )
+    {
+        mtime_t current_date = mdate();
+        if ( current_date > p_buffer->i_dts )
+            msg_Warn( p_mux, "late buffer for mux input ("I64Fd")",
+                      current_date - p_buffer->i_dts );
+    }
+
+    if( p_mux->b_waiting_stream )
+    {
+        if( p_mux->i_add_stream_start < 0 )
+        {
+            p_mux->i_add_stream_start = p_buffer->i_dts;
+        }
+
+        if( p_mux->i_add_stream_start >= 0 &&
+            p_mux->i_add_stream_start + I64C(1500000) < p_buffer->i_dts )
+        {
+            /* Wait until we have more than 1.5 seconds worth of data
+             * before start muxing */
+            p_mux->b_waiting_stream = VLC_FALSE;
+        }
+        else
+        {
+            return;
+        }
+    }
+    p_mux->pf_mux( p_mux );
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static int mrl_Parse( mrl_t *p_mrl, const char *psz_mrl )
+{
+    char * psz_dup = strdup( psz_mrl );
+    char * psz_parser = psz_dup;
+    const char * psz_access;
+    const char * psz_way;
+    char * psz_name;
+
+    /* *** first parse psz_dest */
     while( *psz_parser && *psz_parser != ':' )
     {
-        psz_parser++;
+        if( *psz_parser == '{' )
+        {
+            while( *psz_parser && *psz_parser != '}' )
+            {
+                psz_parser++;
+            }
+            if( *psz_parser )
+            {
+                psz_parser++;
+            }
+        }
+        else
+        {
+            psz_parser++;
+        }
     }
-#ifdef WIN32
-    if( psz_parser - p_sout->psz_dest == 1 )
+#if defined( WIN32 ) || defined( UNDER_CE )
+    if( psz_parser - psz_dup == 1 )
     {
-        msg_Warn( p_sout, "drive letter %c: found in source string",
-                           p_sout->psz_dest ) ;
+        /* msg_Warn( p_sout, "drive letter %c: found in source string",
+                          *psz_dup ) ; */
         psz_parser = "";
     }
 #endif
 
     if( !*psz_parser )
     {
-        p_sout->psz_access = p_sout->psz_mux = "";
-        p_sout->psz_name = p_sout->psz_dest;
+        psz_access = psz_way = "";
+        psz_name = psz_dup;
     }
     else
     {
@@ -100,31 +622,45 @@ static int InitInstance( sout_instance_t * p_sout )
         if( psz_parser[0] == '/' && psz_parser[1] == '/' )
         {
             psz_parser += 2 ;
-        } 
+        }
 
-        p_sout->psz_name = psz_parser ;
+        psz_name = psz_parser ;
 
         /* Come back to parse the access and mux plug-ins */
-        psz_parser = p_sout->psz_dest;
+        psz_parser = psz_dup;
 
         if( !*psz_parser )
         {
             /* No access */
-            p_sout->psz_access = "";
+            psz_access = "";
         }
         else if( *psz_parser == '/' )
         {
             /* No access */
-            p_sout->psz_access = "";
+            psz_access = "";
             psz_parser++;
         }
         else
         {
-            p_sout->psz_access = psz_parser;
+            psz_access = psz_parser;
 
             while( *psz_parser && *psz_parser != '/' )
             {
-                psz_parser++;
+                if( *psz_parser == '{' )
+                {
+                    while( *psz_parser && *psz_parser != '}' )
+                    {
+                        psz_parser++;
+                    }
+                    if( *psz_parser )
+                    {
+                        psz_parser++;
+                    }
+                }
+                else
+                {
+                    psz_parser++;
+                }
             }
 
             if( *psz_parser == '/' )
@@ -136,54 +672,168 @@ static int InitInstance( sout_instance_t * p_sout )
         if( !*psz_parser )
         {
             /* No mux */
-            p_sout->psz_mux = "";
+            psz_way = "";
         }
         else
         {
-            p_sout->psz_mux = psz_parser;
+            psz_way = psz_parser;
+        }
+    }
+
+    p_mrl->psz_access = strdup( psz_access );
+    p_mrl->psz_way    = strdup( psz_way );
+    p_mrl->psz_name   = strdup( psz_name );
+
+    free( psz_dup );
+    return( VLC_SUCCESS );
+}
+
+
+/* mrl_Clean: clean p_mrl  after a call to mrl_Parse */
+static void mrl_Clean( mrl_t *p_mrl )
+{
+    FREENULL( p_mrl->psz_access );
+    FREENULL( p_mrl->psz_way );
+    FREENULL( p_mrl->psz_name );
+}
+
+
+/****************************************************************************
+ ****************************************************************************
+ **
+ **
+ **
+ ****************************************************************************
+ ****************************************************************************/
+
+/* create a complete chain */
+/* chain format:
+    module{option=*:option=*}[:module{option=*:...}]
+ */
+
+/*
+ * parse module{options=str, option="str "}:
+ *  return a pointer on the rest
+ *  XXX: psz_chain is modified
+ */
+#define SKIPSPACE( p ) { while( *p && ( *p == ' ' || *p == '\t' ) ) p++; }
+#define SKIPTRAILINGSPACE( p, e ) \
+    { while( e > p && ( *(e-1) == ' ' || *(e-1) == '\t' ) ) e--; }
+
+/* go accross " " and { } */
+static char *_get_chain_end( char *str )
+{
+    char c, *p = str;
+
+    SKIPSPACE( p );
+
+    for( ;; )
+    {
+        if( !*p || *p == ',' || *p == '}' ) return p;
+
+        if( *p != '{' && *p != '"' && *p != '\'' )
+        {
+            p++;
+            continue;
+        }
+
+        if( *p == '{' ) c = '}';
+        else c = *p;
+        p++;
+
+        for( ;; )
+        {
+            if( !*p ) return p;
+
+            if( *p == c ) return ++p;
+            else if( *p == '{' && c == '}' ) p = _get_chain_end( p );
+            else p++;
         }
     }
+}
 
-    msg_Dbg( p_sout, "access `%s', mux `%s', name `%s'",
-             p_sout->psz_access, p_sout->psz_mux, p_sout->psz_name );
+/*
+ * XXX name and p_cfg are used (-> do NOT free them)
+ */
+sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_chain )
+{
+    sout_stream_t *p_stream;
 
+    if( !psz_chain )
+    {
+        msg_Err( p_sout, "invalid chain" );
+        return NULL;
+    }
 
-    /* Find and open appropriate access module */
-    p_sout->p_access =
-        module_Need( p_sout, "sout access", p_sout->psz_access );
+    p_stream = vlc_object_create( p_sout, sizeof( sout_stream_t ) );
 
-    if( p_sout->p_access == NULL )
+    if( !p_stream )
     {
-        msg_Err( p_sout, "no suitable sout access module for `%s/%s://%s'",
-                 p_sout->psz_access, p_sout->psz_mux, p_sout->psz_name );
-        return -1;
+        msg_Err( p_sout, "out of memory" );
+        return NULL;
     }
 
-    /* Find and open appropriate mux module */
-    p_sout->p_mux =
-        module_Need( p_sout, "sout mux", p_sout->psz_mux );
+    p_stream->p_sout   = p_sout;
+    p_stream->p_sys    = NULL;
+
+    p_stream->psz_next =
+        config_ChainCreate( &p_stream->psz_name, &p_stream->p_cfg, psz_chain);
+
+    msg_Dbg( p_sout, "stream=`%s'", p_stream->psz_name );
+
+    vlc_object_attach( p_stream, p_sout );
 
-    if( p_sout->p_mux == NULL )
+    p_stream->p_module =
+        module_Need( p_stream, "sout stream", p_stream->psz_name, VLC_TRUE );
+
+    if( !p_stream->p_module )
     {
-        msg_Err( p_sout, "no suitable mux module for `%s/%s://%s'",
-                 p_sout->psz_access, p_sout->psz_mux, p_sout->psz_name );
-        module_Unneed( p_sout, p_sout->p_access );
-        return -1;
+        sout_StreamDelete( p_stream );
+        return NULL;
     }
 
-    return 0;
+    return p_stream;
 }
 
-
-/*****************************************************************************
- * sout_DeleteInstance: delete a previously allocated instance
- *****************************************************************************/
-void sout_DeleteInstance( sout_instance_t * p_sout )
+void sout_StreamDelete( sout_stream_t *p_stream )
 {
-    /* Unlink object */
-    vlc_object_detach( p_sout );
+    msg_Dbg( p_stream, "destroying chain... (name=%s)", p_stream->psz_name );
 
-    /* Free structure */
-    vlc_object_destroy( p_sout );
+    vlc_object_detach( p_stream );
+    if( p_stream->p_module ) module_Unneed( p_stream, p_stream->p_module );
+
+    FREENULL( p_stream->psz_name );
+    FREENULL( p_stream->psz_next );
+
+    config_ChainDestroy( p_stream->p_cfg );
+
+    msg_Dbg( p_stream, "destroying chain done" );
+    vlc_object_destroy( p_stream );
 }
 
+static char *_sout_stream_url_to_chain( vlc_object_t *p_this, char *psz_url )
+{
+    mrl_t       mrl;
+    char        *psz_chain, *p;
+
+    mrl_Parse( &mrl, psz_url );
+    p = psz_chain = malloc( 500 + strlen( mrl.psz_way ) +
+                                  strlen( mrl.psz_access ) +
+                                  strlen( mrl.psz_name ) );
+
+
+    if( config_GetInt( p_this, "sout-display" ) )
+    {
+        p += sprintf( p, "duplicate{dst=display,dst=std{mux=\"%s\","
+                      "access=\"%s\",dst=\"%s\"}}",
+                      mrl.psz_way, mrl.psz_access, mrl.psz_name );
+    }
+    else
+    {
+        p += sprintf( p, "std{mux=\"%s\",access=\"%s\",dst=\"%s\"}",
+                      mrl.psz_way, mrl.psz_access, mrl.psz_name );
+    }
+
+    mrl_Clean( &mrl );
+    return( psz_chain );
+}