Fix segfault when child vout creation fails

modules/video_filter/adjust.c

@@ -204,9 +204,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );
 

modules/video_filter/crop.c

@@ -287,9 +287,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );
 

modules/video_filter/distort.c

@@ -182,7 +182,6 @@ static int Init( vout_thread_t *p_vout )
     if( p_vout->p_sys->p_vout == NULL )
     {
         msg_Err( p_vout, "cannot open vout, aborting" );
-
         return VLC_EGENERIC;
     }
 
@@ -222,9 +221,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );
 

modules/video_filter/filter_common.h

@@ -2,7 +2,7 @@
  * filter_common.h: Common filter functions
  *****************************************************************************
  * Copyright (C) 2001, 2002, 2003 VideoLAN
- * $Id: filter_common.h,v 1.6 2004/02/22 15:57:41 fenrir Exp $
+ * $Id$
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *

modules/video_filter/invert.c

@@ -165,9 +165,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );
 

modules/video_filter/logo.c

@@ -314,9 +314,12 @@ static void End( vout_thread_t *p_vout )
     var_DelCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
     var_DelCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     config_PutInt( p_vout, "logo-x", p_vout->p_sys->posx );
     config_PutInt( p_vout, "logo-y", p_vout->p_sys->posy );

modules/video_filter/motionblur.c

@@ -207,9 +207,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );
 

modules/video_filter/transform.c

@@ -245,9 +245,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    if( p_vout->p_sys->p_vout )
+    {
         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
         vlc_object_detach( p_vout->p_sys->p_vout );
         vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
     DEL_PARENT_CALLBACKS( SendEventsToChild );