Forward port of [17351]. Report input error condition to JavaScript

include/vlc_input.h

@@ -314,7 +314,8 @@ enum input_state_e
     BUFFERING_S,
     PLAYING_S,
     PAUSE_S,
-    END_S
+    END_S,
+    ERROR_S
 };
 
 /* "rate" default, min/max

src/control/input.c

@@ -215,9 +215,9 @@ int libvlc_input_get_state( libvlc_input_t *p_input,
     input_thread_t *p_input_thread;
     vlc_value_t val;
 
-    p_input_thread = libvlc_get_input_thread ( p_input, p_e);
+    p_input_thread = libvlc_get_input_thread ( p_input, p_e );
     if ( libvlc_exception_raised( p_e ) )
-        return 0;
+        return 6; /* Return ERROR_S (see include/vlc_input.c) */
 
     var_Get( p_input_thread, "state", &val );
     vlc_object_release( p_input_thread );

src/input/input.c

@@ -270,7 +270,6 @@ input_thread_t *__input_CreateThread( vlc_object_t *p_parent,
     return __input_CreateThread2( p_parent, p_item, NULL );
 }
 
-
 /* Gruik ! */
 input_thread_t *__input_CreateThread2( vlc_object_t *p_parent,
                                        input_item_t *p_item,
@@ -279,6 +278,9 @@ input_thread_t *__input_CreateThread2( vlc_object_t *p_parent,
     input_thread_t *p_input = NULL;      /* thread descriptor */
 
     p_input = Create( p_parent, p_item, psz_header, VLC_FALSE );
+    if( !p_input )
+        return NULL;
+
     /* Now we can attach our new input */
     vlc_object_attach( p_input, p_parent );
 
@@ -286,6 +288,7 @@ input_thread_t *__input_CreateThread2( vlc_object_t *p_parent,
     if( vlc_thread_create( p_input, "input", Run,
                             VLC_THREAD_PRIORITY_INPUT, VLC_TRUE ) )
     {
+        input_ChangeState( p_input, ERROR_S );
         msg_Err( p_input, "cannot create input thread" );
         vlc_object_detach( p_input );
         vlc_object_destroy( p_input );
@@ -295,7 +298,6 @@ input_thread_t *__input_CreateThread2( vlc_object_t *p_parent,
     return p_input;
 }
 
-
 /**
  * Initialize an input thread and run it. This thread will clean after himself,
  * you can forget about it. It can work either in blocking or non-blocking mode
@@ -311,6 +313,9 @@ int __input_Read( vlc_object_t *p_parent, input_item_t *p_item,
     input_thread_t *p_input = NULL;         /* thread descriptor */
 
     p_input = Create( p_parent, p_item, NULL, VLC_FALSE );
+    if( !p_input )
+        return VLC_EGENERIC;
+
     /* Now we can attach our new input */
     vlc_object_attach( p_input, p_parent );
 
@@ -324,6 +329,7 @@ int __input_Read( vlc_object_t *p_parent, input_item_t *p_item,
         if( vlc_thread_create( p_input, "input", RunAndClean,
                                VLC_THREAD_PRIORITY_INPUT, VLC_TRUE ) )
         {
+            input_ChangeState( p_input, ERROR_S );
             msg_Err( p_input, "cannot create input thread" );
             vlc_object_detach( p_input );
             vlc_object_destroy( p_input );
@@ -347,6 +353,9 @@ int __input_Preparse( vlc_object_t *p_parent, input_item_t *p_item )
 
     /* Allocate descriptor */
     p_input = Create( p_parent, p_item, NULL, VLC_TRUE );
+    if( !p_input )
+        return VLC_EGENERIC;
+
     p_input->i_flags |= OBJECT_FLAGS_QUIET;
     p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;
 
@@ -529,7 +538,6 @@ static int RunAndClean( input_thread_t *p_input )
     return 0;
 }
 
-
 /*****************************************************************************
  * Main loop: Fill buffers from access, and demux
  *****************************************************************************/
@@ -579,6 +587,7 @@ static void MainLoop( input_thread_t *p_input )
                 {
                     /* End of file - we do not set b_die because only the
                      * playlist is allowed to do so. */
+                    input_ChangeState( p_input, END_S );
                     msg_Dbg( p_input, "EOF reached" );
                     p_input->input.b_eof = VLC_TRUE;
                 }
@@ -698,7 +707,6 @@ static void MainLoop( input_thread_t *p_input )
     }
 }
 
-
 static int Init( input_thread_t * p_input )
 {
     char *psz;
@@ -754,6 +762,7 @@ static int Init( input_thread_t * p_input )
             p_input->p_sout = sout_NewInstance( p_input, psz );
             if( p_input->p_sout == NULL )
             {
+                input_ChangeState( p_input, ERROR_S );
                 msg_Err( p_input, "cannot start stream output instance, " \
                                   "aborting" );
                 free( psz );
@@ -871,7 +880,6 @@ static int Init( input_thread_t * p_input )
             p_input->i_stop = 0;
         }
 
-
         /* Load subtitles */
         /* Get fps and set it if not already set */
         if( !demux2_Control( p_input->input.p_demux, DEMUX_GET_FPS, &f_fps ) &&
@@ -897,7 +905,6 @@ static int Init( input_thread_t * p_input )
             var_SetTime( p_input, "spu-delay", (mtime_t)i_delay * 100000 );
         }
 
-
         /* Look for and add subtitle files */
         psz_subtitle = var_GetString( p_input, "sub-file" );
         if( *psz_subtitle )
@@ -913,7 +920,6 @@ static int Init( input_thread_t * p_input )
             char **subs = subtitles_Detect( p_input, psz_autopath,
                                             p_input->input.p_item->psz_uri );
             input_source_t *sub;
-
             i = 0;
 
             /* Try to autoselect the first autodetected subtitles file
@@ -1087,11 +1093,13 @@ static int Init( input_thread_t * p_input )
     }
 
     /* initialization is complete */
-    input_ChangeState(p_input, PLAYING_S);
+    input_ChangeState( p_input, PLAYING_S );
 
     return VLC_SUCCESS;
 
 error:
+    input_ChangeState( p_input, ERROR_S );
+
     if( p_input->p_es_out )
         input_EsOutDelete( p_input->p_es_out );
 
@@ -1118,6 +1126,7 @@ static void Error( input_thread_t *p_input )
     while( !p_input->b_die )
     {
         /* Sleep a while */
+        input_ChangeState( p_input, ERROR_S );
         msleep( INPUT_IDLE_SLEEP );
     }
 }
@@ -1132,7 +1141,7 @@ static void End( input_thread_t * p_input )
     msg_Dbg( p_input, "closing input" );
 
     /* We are at the end */
-    input_ChangeState(p_input, END_S);
+    input_ChangeState( p_input, END_S );
 
     /* Clean control variables */
     input_ControlVarClean( p_input );
@@ -1239,6 +1248,10 @@ static inline int ControlPopNoLock( input_thread_t *p_input,
 static void ControlReduce( input_thread_t *p_input )
 {
     int i;
+
+    if( !p_input )
+        return;
+
     for( i = 1; i < p_input->i_control; i++ )
     {
         const int i_lt = p_input->control[i-1].i_type;
@@ -1920,6 +1933,7 @@ static int InputSourceInit( input_thread_t *p_input,
     vlc_value_t val;
 
     if( !in ) return VLC_EGENERIC;
+    if( !p_input ) return VLC_EGENERIC;
 
     /* Split uri */
     if( !p_input->b_preparsing )
@@ -2009,7 +2023,7 @@ static int InputSourceInit( input_thread_t *p_input,
     {
         int64_t i_pts_delay;
 
-        input_ChangeState( p_input, OPENING_S);
+        input_ChangeState( p_input, OPENING_S );
 
         /* Now try a real access */
         in->p_access = access2_New( p_input, psz_access, psz_demux, psz_path,
@@ -2107,7 +2121,7 @@ static int InputSourceInit( input_thread_t *p_input,
             var_Set( p_input, "seekable", val );
         }
 
-        input_ChangeState( p_input, BUFFERING_S);
+        input_ChangeState( p_input, BUFFERING_S );
 
         /* Create the stream_t */
         in->p_stream = stream_AccessNew( in->p_access, p_input->b_preparsing );
@@ -2160,6 +2174,8 @@ static int InputSourceInit( input_thread_t *p_input,
     return VLC_SUCCESS;
 
 error:
+    input_ChangeState( p_input, ERROR_S );
+
     if( in->p_demux )
         demux2_Delete( in->p_demux );
 
@@ -2255,6 +2271,8 @@ static void SlaveSeek( input_thread_t *p_input )
     int64_t i_time;
     int i;
 
+    if( !p_input ) return;
+
     if( demux2_Control( p_input->input.p_demux, DEMUX_GET_TIME, &i_time ) )
     {
         msg_Err( p_input, "demux doesn't like DEMUX_GET_TIME" );
@@ -2272,6 +2290,7 @@ static void SlaveSeek( input_thread_t *p_input )
         }
     }
 }
+
 /*****************************************************************************
  * InputMetaUser:
  *****************************************************************************/
@@ -2301,7 +2320,6 @@ static void InputMetaUser( input_thread_t *p_input )
 #undef GET_META
 }
 
-
 /*****************************************************************************
  * MRLSplit: parse the access, demux and url part of the
  *           Media Resource Locator.
@@ -2492,3 +2510,4 @@ vlc_bool_t input_AddSubtitles( input_thread_t *p_input, char *psz_subtitle,
 
     return VLC_TRUE;
 }
+