]> git.sesse.net Git - vlc/blobdiff - src/stream_output/stream_output.c
Use var_Inherit* instead of var_CreateGet*.
[vlc] / src / stream_output / stream_output.c
index dc586418eabd50b02bcce1b795d3a6ee47c67811..38b2361186cd45feca2e46726b06207fe09b8f52 100644 (file)
  * Preamble
  *****************************************************************************/
 
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <assert.h>
+
+#include <vlc_common.h>
 
 #include <stdlib.h>                                                /* free() */
 #include <stdio.h>                                              /* sprintf() */
-#include <string.h>                                            /* strerror() */
+#include <string.h>
 
 #include <vlc_sout.h>
-#include <vlc_playlist.h>
 
 #include "stream_output.h"
 
 #include <vlc_meta.h>
+#include <vlc_block.h>
+#include <vlc_codec.h>
+#include <vlc_modules.h>
 
-#include "input/input_internal.h"
+#include "input/input_interface.h"
+
+#define VLC_CODEC_NULL VLC_FOURCC( 'n', 'u', 'l', 'l' )
 
 #undef DEBUG_BUFFER
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
-#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 * );
+static char *sout_stream_url_to_chain( bool, const char * );
 
 /*
  * Generic MRL parser
@@ -70,56 +78,31 @@ 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, const char *psz_dest )
 {
+    static const char typename[] = "stream output";
     sout_instance_t *p_sout;
-    vlc_value_t keep;
 
-    if( var_Get( p_parent, "sout-keep", &keep ) >= 0 && keep.b_bool )
+    char *psz_chain;
+    if( psz_dest && psz_dest[0] == '#' )
     {
-        /* Remove the sout from the playlist garbage collector */
-        playlist_t *p_playlist = pl_Yield( p_parent );
-
-        vlc_mutex_lock( &p_playlist->gc_lock );
-        p_sout = vlc_object_find( p_playlist, VLC_OBJECT_SOUT, FIND_CHILD );
-        if( p_sout && p_sout->p_parent != (vlc_object_t *)p_playlist )
-        {
-            vlc_object_release( p_sout );
-            p_sout = NULL;
-        }
-        if( p_sout )
-            vlc_object_detach( p_sout );    /* Remove it from the GC */
-        vlc_mutex_unlock( &p_playlist->gc_lock );
-
-        pl_Release( p_parent );
-
-        /* */
-
-        if( p_sout )
-        {
-            if( !strcmp( p_sout->psz_sout, psz_dest ) )
-            {
-                msg_Dbg( p_parent, "sout keep: reusing sout" );
-                msg_Dbg( p_parent, "sout keep: you probably want to use "
-                          "gather stream_out" );
-                vlc_object_attach( p_sout, p_parent );
-                vlc_object_release( p_sout );
-                return p_sout;
-            }
-
-            msg_Dbg( p_parent, "sout keep: destroying unusable sout" );
-            vlc_object_release( p_sout );
-            sout_DeleteInstance( p_sout );
-        }
+        psz_chain = strdup( &psz_dest[1] );
     }
+    else
+    {
+        psz_chain = sout_stream_url_to_chain(
+            var_InheritBool(p_parent, "sout-display"), psz_dest );
+    }
+    if(!psz_chain)
+        return NULL;
 
     /* *** Allocate descriptor *** */
-    p_sout = vlc_object_create( p_parent, VLC_OBJECT_SOUT );
+    p_sout = vlc_custom_create( p_parent, sizeof( *p_sout ),
+                                VLC_OBJECT_GENERIC, typename );
     if( p_sout == NULL )
-    {
-        msg_Err( p_parent, "out of memory" );
         return NULL;
-    }
+
+    msg_Dbg( p_sout, "using sout chain=`%s'", psz_chain );
 
     /* *** init descriptor *** */
     p_sout->psz_sout    = strdup( psz_dest );
@@ -127,36 +110,28 @@ sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, char * psz_dest )
     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 );
-    }
+    vlc_mutex_init( &p_sout->lock );
     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 );
+    var_Create( p_sout, "sout-mux-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 
-    if( p_sout->p_stream == NULL )
+    p_sout->p_stream = sout_StreamChainNew( p_sout, psz_chain, NULL, NULL );
+    if( p_sout->p_stream )
     {
-        msg_Err( p_sout, "stream chain failed for `%s'", p_sout->psz_chain );
+        free( psz_chain );
+        return p_sout;
+    }
 
-        FREENULL( p_sout->psz_sout );
-        FREENULL( p_sout->psz_chain );
+    msg_Err( p_sout, "stream chain failed for `%s'", psz_chain );
+    free( psz_chain );
 
-        vlc_object_detach( p_sout );
-        vlc_object_destroy( p_sout );
-        return NULL;
-    }
+    FREENULL( p_sout->psz_sout );
 
-    return p_sout;
+    vlc_object_release( p_sout );
+    return NULL;
 }
 
 /*****************************************************************************
@@ -164,15 +139,11 @@ sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, char * psz_dest )
  *****************************************************************************/
 void sout_DeleteInstance( sout_instance_t * p_sout )
 {
-    /* Unlink object */
-    vlc_object_detach( p_sout );
-
     /* remove the stream out chain */
-    sout_StreamDelete( p_sout->p_stream );
+    sout_StreamChainDelete( p_sout->p_stream, NULL );
 
     /* *** free all string *** */
     FREENULL( p_sout->psz_sout );
-    FREENULL( p_sout->psz_chain );
 
     /* delete meta */
     if( p_sout->p_meta )
@@ -183,9 +154,53 @@ void sout_DeleteInstance( sout_instance_t * p_sout )
     vlc_mutex_destroy( &p_sout->lock );
 
     /* *** free structure *** */
-    vlc_object_destroy( p_sout );
+    vlc_object_release( p_sout );
 }
 
+/*****************************************************************************
+ * 
+ *****************************************************************************/
+void sout_UpdateStatistic( sout_instance_t *p_sout, sout_statistic_t i_type, int i_delta )
+{
+    if( !libvlc_stats( p_sout ) )
+        return;
+
+    /* */
+    input_thread_t *p_input = vlc_object_find( p_sout, VLC_OBJECT_INPUT, FIND_PARENT );
+    if( !p_input )
+        return;
+
+    int i_input_type;
+    switch( i_type )
+    {
+    case SOUT_STATISTIC_DECODED_VIDEO:
+        i_input_type = SOUT_STATISTIC_DECODED_VIDEO;
+        break;
+    case SOUT_STATISTIC_DECODED_AUDIO:
+        i_input_type = SOUT_STATISTIC_DECODED_AUDIO;
+        break;
+    case SOUT_STATISTIC_DECODED_SUBTITLE:
+        i_input_type = SOUT_STATISTIC_DECODED_SUBTITLE;
+        break;
+
+    case SOUT_STATISTIC_SENT_PACKET:
+        i_input_type = SOUT_STATISTIC_SENT_PACKET;
+        break;
+
+    case SOUT_STATISTIC_SENT_BYTE:
+        i_input_type = SOUT_STATISTIC_SENT_BYTE;
+        break;
+
+    default:
+        msg_Err( p_sout, "Not yet supported statistic type %d", i_type );
+        vlc_object_release( p_input );
+        return;
+    }
+
+    input_UpdateStatistic( p_input, i_input_type, i_delta );
+
+    vlc_object_release( p_input );
+}
 /*****************************************************************************
  * Packetizer/Input
  *****************************************************************************/
@@ -194,14 +209,15 @@ sout_packetizer_input_t *sout_InputNew( sout_instance_t *p_sout,
 {
     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 ) );
+    if( !p_input )  return NULL;
     p_input->p_sout = p_sout;
     p_input->p_fmt  = p_fmt;
 
-    if( p_fmt->i_codec == VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
+    msg_Dbg( p_sout, "adding a new sout input (sout_input:%p)", p_input );
+
+    if( p_fmt->i_codec == VLC_CODEC_NULL )
     {
         vlc_object_release( p_sout );
         return p_input;
@@ -228,9 +244,9 @@ 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" );
+    msg_Dbg( p_sout, "removing a sout input (sout_input:%p)", p_input );
 
-    if( p_input->p_fmt->i_codec != VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
+    if( p_input->p_fmt->i_codec != VLC_CODEC_NULL )
     {
         vlc_mutex_lock( &p_sout->lock );
         p_sout->p_stream->pf_del( p_sout->p_stream, p_input->id );
@@ -251,12 +267,13 @@ int sout_InputSendBuffer( sout_packetizer_input_t *p_input,
     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' ) )
+    if( p_input->p_fmt->i_codec == VLC_CODEC_NULL )
     {
         block_Release( p_buffer );
         return VLC_SUCCESS;
     }
-    if( p_buffer->i_dts <= 0 )
+
+    if( p_buffer->i_dts <= VLC_TS_INVALID )
     {
         msg_Warn( p_sout, "trying to send non-dated packet to stream output!");
         block_Release( p_buffer );
@@ -271,31 +288,27 @@ int sout_InputSendBuffer( sout_packetizer_input_t *p_input,
     return i_ret;
 }
 
+#undef sout_AccessOutNew
 /*****************************************************************************
  * sout_AccessOutNew: allocate a new access out
  *****************************************************************************/
-sout_access_out_t *sout_AccessOutNew( sout_instance_t *p_sout,
+sout_access_out_t *sout_AccessOutNew( vlc_object_t *p_sout,
                                       const char *psz_access, const char *psz_name )
 {
+    static const char typename[] = "access out";
     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" );
+    p_access = vlc_custom_create( p_sout, sizeof( *p_access ),
+                                  VLC_OBJECT_GENERIC, typename );
+    if( !p_access )
         return NULL;
-    }
 
     psz_next = config_ChainCreate( &p_access->psz_access, &p_access->p_cfg,
                                    psz_access );
-    if( psz_next )
-    {
-        free( 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->p_sys      = NULL;
     p_access->pf_seek    = NULL;
     p_access->pf_read    = NULL;
     p_access->pf_write   = NULL;
@@ -308,14 +321,13 @@ sout_access_out_t *sout_AccessOutNew( sout_instance_t *p_sout,
     vlc_object_attach( p_access, p_sout );
 
     p_access->p_module   =
-        module_Need( p_access, "sout access", p_access->psz_access, VLC_TRUE );
+        module_need( p_access, "sout access", p_access->psz_access, 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 );
+        vlc_object_release( p_access );
         return( NULL );
     }
 
@@ -326,10 +338,9 @@ sout_access_out_t *sout_AccessOutNew( sout_instance_t *p_sout,
  *****************************************************************************/
 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 );
+        module_unneed( p_access, p_access->p_module );
     }
     free( p_access->psz_access );
 
@@ -337,7 +348,7 @@ void sout_AccessOutDelete( sout_access_out_t *p_access )
 
     free( p_access->psz_path );
 
-    vlc_object_destroy( p_access );
+    vlc_object_release( p_access );
 }
 
 /*****************************************************************************
@@ -351,7 +362,7 @@ int sout_AccessOutSeek( sout_access_out_t *p_access, off_t i_pos )
 /*****************************************************************************
  * sout_AccessRead:
  *****************************************************************************/
-int sout_AccessOutRead( sout_access_out_t *p_access, block_t *p_buffer )
+ssize_t 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 );
@@ -360,60 +371,57 @@ int sout_AccessOutRead( sout_access_out_t *p_access, block_t *p_buffer )
 /*****************************************************************************
  * sout_AccessWrite:
  *****************************************************************************/
-int sout_AccessOutWrite( sout_access_out_t *p_access, block_t *p_buffer )
+ssize_t sout_AccessOutWrite( sout_access_out_t *p_access, block_t *p_buffer )
 {
-    int i_total = 0;
+#if 0
+    const unsigned i_packets_gather = 30;
     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 )
+    if( (p_access->i_writes % i_packets_gather) == 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 );
-        }
+        sout_UpdateStatistic( p_access->p_sout, SOUT_STATISTIC_SENT_PACKET, i_packets_gather );
+        sout_UpdateStatistic( p_access->p_sout, SOUT_STATISTIC_SENT_BYTE, p_access->i_sent_bytes );
+        p_access->i_sent_bytes = 0;
     }
+#endif
     return p_access->pf_write( p_access, p_buffer );
 }
 
 /**
  * sout_AccessOutControl
  */
-int sout_AccessOutControl (sout_access_out_t *access, int query, va_list args)
+int sout_AccessOutControl (sout_access_out_t *access, int query, ...)
 {
-    return (access->pf_control) ? access->pf_control (access, query, args)
-                                : VLC_EGENERIC;
+    va_list ap;
+    int ret;
+
+    va_start (ap, query);
+    if (access->pf_control)
+        ret = access->pf_control (access, query, ap);
+    else
+        ret = VLC_EGENERIC;
+    va_end (ap);
+    return ret;
 }
 
 /*****************************************************************************
  * sout_MuxNew: create a new mux
  *****************************************************************************/
-sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, char *psz_mux,
+sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, const char *psz_mux,
                           sout_access_out_t *p_access )
 {
+    static const char typename[] = "mux";
     sout_mux_t *p_mux;
     char       *psz_next;
 
-    p_mux = vlc_object_create( p_sout, sizeof( sout_mux_t ) );
+    p_mux = vlc_custom_create( p_sout, sizeof( *p_mux ), VLC_OBJECT_GENERIC,
+                               typename);
     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 );
+    free( psz_next );
 
     p_mux->p_access     = p_access;
     p_mux->pf_control   = NULL;
@@ -426,58 +434,57 @@ sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, char *psz_mux,
     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->b_add_stream_any_time = false;
+    p_mux->b_waiting_stream = 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 );
+        module_need( p_mux, "sout mux", p_mux->psz_mux, true );
 
     if( p_mux->p_module == NULL )
     {
         FREENULL( p_mux->psz_mux );
 
-        vlc_object_detach( p_mux );
-        vlc_object_destroy( p_mux );
+        vlc_object_release( p_mux );
         return NULL;
     }
 
     /* *** probe mux capacity *** */
     if( p_mux->pf_control )
     {
-        int b_answer = VLC_FALSE;
+        int b_answer = false;
 
         if( sout_MuxControl( p_mux, MUX_CAN_ADD_STREAM_WHILE_MUXING,
                              &b_answer ) )
         {
-            b_answer = VLC_FALSE;
+            b_answer = 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;
+            p_mux->b_add_stream_any_time = true;
+            p_mux->b_waiting_stream = false;
 
             /* 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;
+                b_answer = true;
             }
             else if( sout_MuxControl( p_mux, MUX_GET_ADD_STREAM_WAIT,
                                       &b_answer ) )
             {
-                b_answer = VLC_FALSE;
+                b_answer = 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;
+                p_mux->b_waiting_stream = true;
             }
         }
     }
@@ -490,16 +497,15 @@ sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, char *psz_mux,
  *****************************************************************************/
 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 );
+        module_unneed( p_mux, p_mux->p_module );
     }
     free( p_mux->psz_mux );
 
     config_ChainDestroy( p_mux->p_cfg );
 
-    vlc_object_destroy( p_mux );
+    vlc_object_release( p_mux );
 }
 
 /*****************************************************************************
@@ -512,7 +518,7 @@ sout_input_t *sout_MuxAddStream( sout_mux_t *p_mux, es_format_t *p_fmt )
     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)" );
+                        "to this format). You can try increasing sout-mux-caching value" );
         return NULL;
     }
 
@@ -520,19 +526,21 @@ sout_input_t *sout_MuxAddStream( sout_mux_t *p_mux, es_format_t *p_fmt )
 
     /* create a new sout input */
     p_input = malloc( sizeof( sout_input_t ) );
+    if( !p_input )
+        return NULL;
     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_fifo = block_FifoNew();
     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;
+        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;
@@ -545,11 +553,12 @@ 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 )
+    if( p_mux->b_waiting_stream
+     && block_FifoCount( p_input->p_fifo ) > 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->b_waiting_stream = false;
         p_mux->pf_mux( p_mux );
     }
 
@@ -586,32 +595,64 @@ void sout_MuxSendBuffer( sout_mux_t *p_mux, sout_input_t *p_input,
     {
         mtime_t current_date = mdate();
         if ( current_date > p_buffer->i_dts )
-            msg_Warn( p_mux, "late buffer for mux input ("I64Fd")",
+            msg_Warn( p_mux, "late buffer for mux input (%"PRId64")",
                       current_date - p_buffer->i_dts );
     }
 
     if( p_mux->b_waiting_stream )
     {
+        const int64_t i_caching = var_GetInteger( p_mux->p_sout, "sout-mux-caching" ) * INT64_C(1000);
+
         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 enought data before muxing */
+        if( p_mux->i_add_stream_start < 0 ||
+            p_buffer->i_dts < p_mux->i_add_stream_start + i_caching )
+            return;
+        p_mux->b_waiting_stream = false;
+    }
+    p_mux->pf_mux( p_mux );
+}
+
+
+/*****************************************************************************
+ * sout_MuxGetStream: find stream to be muxed
+ *****************************************************************************/
+int sout_MuxGetStream( sout_mux_t *p_mux, int i_blocks, mtime_t *pi_dts )
+{
+    mtime_t i_dts = 0;
+    int     i_stream = -1;
+
+    for( int i = 0; i < p_mux->i_nb_inputs; i++ )
+    {
+        sout_input_t *p_input = p_mux->pp_inputs[i];
+        block_t *p_data;
+
+        if( block_FifoCount( p_input->p_fifo ) < i_blocks )
         {
-            /* Wait until we have more than 1.5 seconds worth of data
-             * before start muxing */
-            p_mux->b_waiting_stream = VLC_FALSE;
+            if( p_input->p_fmt->i_cat != SPU_ES )
+            {
+                return -1;
+            }
+            /* FIXME: SPU muxing */
+            continue;
         }
-        else
+
+        p_data = block_FifoShow( p_input->p_fifo );
+        if( i_stream < 0 || p_data->i_dts < i_dts )
         {
-            return;
+            i_stream = i;
+            i_dts    = p_data->i_dts;
         }
     }
-    p_mux->pf_mux( p_mux );
+
+    if( pi_dts ) *pi_dts = i_dts;
+
+    return i_stream;
 }
 
+
 /*****************************************************************************
  *
  *****************************************************************************/
@@ -748,88 +789,77 @@ static void mrl_Clean( mrl_t *p_mrl )
  ****************************************************************************
  ****************************************************************************/
 
-/* 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 )
+/* Destroy a "stream_out" module */
+static void sout_StreamDelete( sout_stream_t *p_stream )
 {
-    char c, *p = str;
+    msg_Dbg( p_stream, "destroying chain... (name=%s)", p_stream->psz_name );
 
-    SKIPSPACE( p );
+    if( p_stream->p_module ) module_unneed( p_stream, p_stream->p_module );
 
-    for( ;; )
-    {
-        if( !*p || *p == ',' || *p == '}' ) return p;
+    FREENULL( p_stream->psz_name );
 
-        if( *p != '{' && *p != '"' && *p != '\'' )
-        {
-            p++;
-            continue;
-        }
+    config_ChainDestroy( p_stream->p_cfg );
 
-        if( *p == '{' ) c = '}';
-        else c = *p;
-        p++;
+    msg_Dbg( p_stream, "destroying chain done" );
+    vlc_object_release( p_stream );
+}
 
-        for( ;; )
-        {
-            if( !*p ) return p;
+/* Destroy a "stream_out" modules chain
+ *
+ * p_first is the first module to be destroyed in the chain
+ * p_last is the last module to be destroyed
+ *  if NULL, all modules are destroyed
+ *  if not NULL, modules following it must be destroyed separately
+ */
+void sout_StreamChainDelete(sout_stream_t *p_first, sout_stream_t *p_last)
+{
+    while(p_first != NULL)
+    {
+        sout_stream_t *p_next = p_first->p_next;
 
-            if( *p == c ) return ++p;
-            else if( *p == '{' && c == '}' ) p = _get_chain_end( p );
-            else p++;
-        }
+        sout_StreamDelete(p_first);
+        if(p_first == p_last)
+           break;
+        p_first = p_next;
     }
 }
 
+/* Create a "stream_out" module, which may forward its ES to p_next module */
 /*
  * XXX name and p_cfg are used (-> do NOT free them)
  */
-sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_chain )
+static sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_name,
+                               config_chain_t *p_cfg, sout_stream_t *p_next)
 {
+    static const char typename[] = "stream out";
     sout_stream_t *p_stream;
 
-    if( !psz_chain )
-    {
-        msg_Err( p_sout, "invalid chain" );
-        return NULL;
-    }
-
-    p_stream = vlc_object_create( p_sout, sizeof( sout_stream_t ) );
+    assert(psz_name);
 
+    p_stream = vlc_custom_create( p_sout, sizeof( *p_stream ),
+                                  VLC_OBJECT_GENERIC, typename );
     if( !p_stream )
-    {
-        msg_Err( p_sout, "out of memory" );
         return NULL;
-    }
 
     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);
+    p_stream->psz_name = psz_name;
+    p_stream->p_cfg    = p_cfg;
+    p_stream->p_next   = p_next;
 
     msg_Dbg( p_sout, "stream=`%s'", p_stream->psz_name );
 
     vlc_object_attach( p_stream, p_sout );
 
     p_stream->p_module =
-        module_Need( p_stream, "sout stream", p_stream->psz_name, VLC_TRUE );
+        module_need( p_stream, "sout stream", p_stream->psz_name, true );
 
     if( !p_stream->p_module )
     {
+        /* those must be freed by the caller if creation failed */
+        p_stream->psz_name = NULL;
+        p_stream->p_cfg = NULL;
+
         sout_StreamDelete( p_stream );
         return NULL;
     }
@@ -837,45 +867,157 @@ sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_chain )
     return p_stream;
 }
 
-void sout_StreamDelete( sout_stream_t *p_stream )
+/* Creates a complete "stream_out" modules chain
+ *
+ *  chain format: module1{option=*:option=*}[:module2{option=*:...}]
+ *
+ *  The modules are created starting from the last one and linked together
+ *  A pointer to the last module created is stored if pp_last isn't NULL, to
+ *  make sure sout_StreamChainDelete doesn't delete modules created in another
+ *  place.
+ *
+ *  Returns a pointer to the first module.
+ */
+sout_stream_t *sout_StreamChainNew(sout_instance_t *p_sout, char *psz_chain,
+                                sout_stream_t *p_next, sout_stream_t **pp_last)
 {
-    msg_Dbg( p_stream, "destroying chain... (name=%s)", p_stream->psz_name );
+    if(!psz_chain || !*psz_chain)
+    {
+        if(pp_last) *pp_last = NULL;
+        return p_next;
+    }
 
-    vlc_object_detach( p_stream );
-    if( p_stream->p_module ) module_Unneed( p_stream, p_stream->p_module );
+    char *psz_parser = strdup(psz_chain);
+    if(!psz_parser)
+        return NULL;
 
-    FREENULL( p_stream->psz_name );
-    FREENULL( p_stream->psz_next );
+    vlc_array_t cfg, name;
+    vlc_array_init(&cfg);
+    vlc_array_init(&name);
 
-    config_ChainDestroy( p_stream->p_cfg );
+    /* parse chain */
+    while(psz_parser)
+    {
+        config_chain_t *p_cfg;
+        char *psz_name;
+        psz_chain = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
+        free( psz_parser );
+        psz_parser = psz_chain;
 
-    msg_Dbg( p_stream, "destroying chain done" );
-    vlc_object_destroy( p_stream );
+        vlc_array_append(&cfg, p_cfg);
+        vlc_array_append(&name, psz_name);
+    }
+
+    int i = vlc_array_count(&name);
+    vlc_array_t module;
+    vlc_array_init(&module);
+    while(i--)
+    {
+        p_next = sout_StreamNew( p_sout, vlc_array_item_at_index(&name, i),
+            vlc_array_item_at_index(&cfg, i), p_next);
+
+        if(!p_next)
+            goto error;
+
+        if(i == vlc_array_count(&name) - 1 && pp_last)
+            *pp_last = p_next;   /* last module created in the chain */
+
+        vlc_array_append(&module, p_next);
+    }
+
+    vlc_array_clear(&name);
+    vlc_array_clear(&cfg);
+    vlc_array_clear(&module);
+
+    return p_next;
+
+error:
+
+    i++;    /* last module couldn't be created */
+
+    /* destroy all modules created, starting with the last one */
+    int modules = vlc_array_count(&module);
+    while(modules--)
+        sout_StreamDelete(vlc_array_item_at_index(&module, modules));
+    vlc_array_clear(&module);
+
+    /* then destroy all names and config which weren't destroyed by
+     * sout_StreamDelete */
+    while(i--)
+    {
+        free(vlc_array_item_at_index(&name, i));
+        config_ChainDestroy(vlc_array_item_at_index(&cfg, i));
+    }
+    vlc_array_clear(&name);
+    vlc_array_clear(&cfg);
+
+    return NULL;
 }
 
-static char *_sout_stream_url_to_chain( vlc_object_t *p_this, char *psz_url )
+static char *sout_stream_url_to_chain( bool b_sout_display,
+                                       const char *psz_url )
 {
     mrl_t       mrl;
-    char        *psz_chain, *p;
+    char        *psz_chain;
 
     mrl_Parse( &mrl, psz_url );
-    p = psz_chain = malloc( 500 + strlen( mrl.psz_way ) +
-                                  strlen( mrl.psz_access ) +
-                                  strlen( mrl.psz_name ) );
 
+    /* Check if the URLs goes to #rtp - otherwise we'll use #standard */
+    static const char rtplist[] = "dccp\0sctp\0tcp\0udplite\0";
+    for (const char *a = rtplist; *a; a += strlen (a) + 1)
+        if (strcmp (a, mrl.psz_access) == 0)
+            goto rtp;
 
-    if( config_GetInt( p_this, "sout-display" ) )
+    if (strcmp (mrl.psz_access, "rtp") == 0)
     {
-        p += sprintf( p, "duplicate{dst=display,dst=std{mux=\"%s\","
-                      "access=\"%s\",dst=\"%s\"}}",
-                      mrl.psz_way, mrl.psz_access, mrl.psz_name );
+        char *port;
+        /* For historical reasons, rtp:// means RTP over UDP */
+        strcpy (mrl.psz_access, "udp");
+rtp:
+        if (mrl.psz_name[0] == '[')
+        {
+            port = strstr (mrl.psz_name, "]:");
+            if (port != NULL)
+                port++;
+        }
+        else
+            port = strchr (mrl.psz_name, ':');
+        if (port != NULL)
+            *port++ = '\0'; /* erase ':' */
+
+        if (asprintf (&psz_chain,
+                      "rtp{mux=\"%s\",proto=\"%s\",dst=\"%s%s%s\"}",
+                      mrl.psz_way, mrl.psz_access, mrl.psz_name,
+                      port ? "\",port=\"" : "", port ? port : "") == -1)
+            psz_chain = NULL;
     }
     else
     {
-        p += sprintf( p, "std{mux=\"%s\",access=\"%s\",dst=\"%s\"}",
-                      mrl.psz_way, mrl.psz_access, mrl.psz_name );
+        /* Convert the URL to a basic standard sout chain */
+        if (asprintf (&psz_chain,
+                      "standard{mux=\"%s\",access=\"%s\",dst=\"%s\"}",
+                      mrl.psz_way, mrl.psz_access, mrl.psz_name) == -1)
+            psz_chain = NULL;
+    }
+
+    /* Duplicate and wrap if sout-display is on */
+    if (psz_chain && b_sout_display)
+    {
+        char *tmp;
+        if (asprintf (&tmp, "duplicate{dst=display,dst=%s}", psz_chain) == -1)
+            tmp = NULL;
+        free (psz_chain);
+        psz_chain = tmp;
     }
 
     mrl_Clean( &mrl );
-    return( psz_chain );
+    return psz_chain;
+}
+
+#undef sout_EncoderCreate
+encoder_t *sout_EncoderCreate( vlc_object_t *p_this )
+{
+    static const char type[] = "encoder";
+    return vlc_custom_create( p_this, sizeof( encoder_t ), VLC_OBJECT_GENERIC,
+                              type );
 }