]> 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 d3ed7eba32d35e2f0aa72b112e3f5609f2f93d28..38b2361186cd45feca2e46726b06207fe09b8f52 100644 (file)
@@ -31,6 +31,8 @@
 # include "config.h"
 #endif
 
+#include <assert.h>
+
 #include <vlc_common.h>
 
 #include <stdlib.h>                                                /* free() */
@@ -44,6 +46,7 @@
 #include <vlc_meta.h>
 #include <vlc_block.h>
 #include <vlc_codec.h>
+#include <vlc_modules.h>
 
 #include "input/input_interface.h"
 
@@ -53,9 +56,7 @@
 /*****************************************************************************
  * 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 *, const char * );
+static char *sout_stream_url_to_chain( bool, const char * );
 
 /*
  * Generic MRL parser
@@ -82,12 +83,27 @@ sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, const char *psz_des
     static const char typename[] = "stream output";
     sout_instance_t *p_sout;
 
+    char *psz_chain;
+    if( psz_dest && psz_dest[0] == '#' )
+    {
+        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_custom_create( p_parent, sizeof( *p_sout ),
                                 VLC_OBJECT_GENERIC, typename );
     if( p_sout == NULL )
         return NULL;
 
+    msg_Dbg( p_sout, "using sout chain=`%s'", psz_chain );
+
     /* *** init descriptor *** */
     p_sout->psz_sout    = strdup( psz_dest );
     p_sout->p_meta      = NULL;
@@ -95,38 +111,27 @@ sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, const char *psz_des
     p_sout->p_sys       = NULL;
 
     vlc_mutex_init( &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 );
 
-    /* */
     var_Create( p_sout, "sout-mux-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 
-    /* */
-    p_sout->p_stream = sout_StreamNew( p_sout, p_sout->psz_chain );
-    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_release( p_sout );
-        return NULL;
-    }
+    FREENULL( p_sout->psz_sout );
 
-    return p_sout;
+    vlc_object_release( p_sout );
+    return NULL;
 }
 
 /*****************************************************************************
@@ -135,11 +140,10 @@ sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, const char *psz_des
 void sout_DeleteInstance( sout_instance_t * 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 )
@@ -268,7 +272,8 @@ int sout_InputSendBuffer( sout_packetizer_input_t *p_input,
         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 );
@@ -322,7 +327,6 @@ sout_access_out_t *sout_AccessOutNew( vlc_object_t *p_sout,
     {
         free( p_access->psz_access );
         free( p_access->psz_path );
-        vlc_object_detach( p_access );
         vlc_object_release( p_access );
         return( NULL );
     }
@@ -334,7 +338,6 @@ sout_access_out_t *sout_AccessOutNew( vlc_object_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 );
@@ -444,7 +447,6 @@ sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, const char *psz_mux,
     {
         FREENULL( p_mux->psz_mux );
 
-        vlc_object_detach( p_mux );
         vlc_object_release( p_mux );
         return NULL;
     }
@@ -495,7 +497,6 @@ sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, const 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 );
@@ -614,6 +615,44 @@ void sout_MuxSendBuffer( sout_mux_t *p_mux, sout_input_t *p_input,
     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 )
+        {
+            if( p_input->p_fmt->i_cat != SPU_ES )
+            {
+                return -1;
+            }
+            /* FIXME: SPU muxing */
+            continue;
+        }
+
+        p_data = block_FifoShow( p_input->p_fifo );
+        if( i_stream < 0 || p_data->i_dts < i_dts )
+        {
+            i_stream = i;
+            i_dts    = p_data->i_dts;
+        }
+    }
+
+    if( pi_dts ) *pi_dts = i_dts;
+
+    return i_stream;
+}
+
+
 /*****************************************************************************
  *
  *****************************************************************************/
@@ -750,30 +789,52 @@ static void mrl_Clean( mrl_t *p_mrl )
  ****************************************************************************
  ****************************************************************************/
 
-/* create a complete chain */
-/* chain format:
-    module{option=*:option=*}[:module{option=*:...}]
- */
+/* Destroy a "stream_out" module */
+static void sout_StreamDelete( sout_stream_t *p_stream )
+{
+    msg_Dbg( p_stream, "destroying chain... (name=%s)", p_stream->psz_name );
 
-/*
- * parse module{options=str, option="str "}:
- *  return a pointer on the rest
- *  XXX: psz_chain is modified
+    if( p_stream->p_module ) module_unneed( p_stream, p_stream->p_module );
+
+    FREENULL( p_stream->psz_name );
+
+    config_ChainDestroy( p_stream->p_cfg );
+
+    msg_Dbg( p_stream, "destroying chain done" );
+    vlc_object_release( p_stream );
+}
+
+/* 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;
 
+        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;
-    }
+    assert(psz_name);
 
     p_stream = vlc_custom_create( p_sout, sizeof( *p_stream ),
                                   VLC_OBJECT_GENERIC, typename );
@@ -782,9 +843,9 @@ sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_chain )
 
     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 );
 
@@ -795,6 +856,10 @@ sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_chain )
 
     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;
     }
@@ -802,24 +867,95 @@ 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;
+
+        vlc_array_append(&cfg, p_cfg);
+        vlc_array_append(&name, psz_name);
+    }
 
-    msg_Dbg( p_stream, "destroying chain done" );
-    vlc_object_release( p_stream );
+    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,
-                                        const char *psz_url )
+static char *sout_stream_url_to_chain( bool b_sout_display,
+                                       const char *psz_url )
 {
     mrl_t       mrl;
     char        *psz_chain;
@@ -865,10 +1001,10 @@ rtp:
     }
 
     /* Duplicate and wrap if sout-display is on */
-    if (psz_chain && (config_GetInt( p_this, "sout-display" ) > 0))
+    if (psz_chain && b_sout_display)
     {
         char *tmp;
-        if (asprintf (&tmp, "duplicate{dst=display,dst=%s}", tmp) == -1)
+        if (asprintf (&tmp, "duplicate{dst=display,dst=%s}", psz_chain) == -1)
             tmp = NULL;
         free (psz_chain);
         psz_chain = tmp;