Avoid to discard qualifier

[vlc] / include / vlc_filter.h

diff --git a/include/vlc_filter.h b/include/vlc_filter.h
index fd6897bb22c5df772f7c8277b73e29515f233fcb..d53365c497a89d7cad89662900d66d17bf4b8412 100644 (file)
--- a/include/vlc_filter.h
+++ b/include/vlc_filter.h
@@ -1,10 +1,11 @@
 /*****************************************************************************
- * vlc_filter.h: filter related structures
+ * vlc_filter.h: filter related structures and functions
  *****************************************************************************
- * Copyright (C) 1999-2003 the VideoLAN team
+ * Copyright (C) 1999-2008 the VideoLAN team
  * $Id$
  *
  * Authors: Gildas Bazin <gbazin@videolan.org>
+ *          Antoine Cellerier <dionoea at videolan dot 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
@@ -21,10 +22,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
-#if !defined( __LIBVLC__ )
-  #error You are not libvlc or one of its plugins. You cannot include this file
-#endif
-
 #ifndef _VLC_FILTER_H
 #define _VLC_FILTER_H 1
 
@@ -55,6 +52,7 @@ struct filter_t
 
     /* Output format of filter */
     es_format_t         fmt_out;
+    bool                b_allow_fmt_out_change;
 
     /* Filter configuration */
     config_chain_t *    p_cfg;
@@ -81,8 +79,8 @@ struct filter_t
     /* Video output callbacks */
     picture_t     * ( * pf_vout_buffer_new) ( filter_t * );
     void            ( * pf_vout_buffer_del) ( filter_t *, picture_t * );
-    void            ( * pf_picture_link)    ( filter_t *, picture_t * );
-    void            ( * pf_picture_unlink)  ( filter_t *, picture_t * );
+    /* void            ( * pf_picture_link)    ( picture_t * );
+    void            ( * pf_picture_unlink)  ( picture_t * ); */
 
     /* SPU output callbacks */
     subpicture_t *  ( * pf_sub_buffer_new) ( filter_t * );
@@ -92,4 +90,63 @@ struct filter_t
     filter_owner_sys_t *p_owner;
 };
 
+
+/**
+ * Create a picture_t *(*)( filter_t *, picture_t * ) compatible wrapper
+ * using a void (*)( filter_t *, picture_t *, picture_t * ) function
+ *
+ * Currently used by the chroma video filters
+ */
+#define VIDEO_FILTER_WRAPPER( name )                                    \
+    static picture_t *name ## _Filter ( filter_t *p_filter,             \
+                                        picture_t *p_pic )              \
+    {                                                                   \
+        picture_t *p_outpic = p_filter->pf_vout_buffer_new( p_filter ); \
+        if( !p_outpic )                                                 \
+        {                                                               \
+            msg_Warn( p_filter, "can't get output picture" );           \
+            if( p_pic->pf_release )                                     \
+                p_pic->pf_release( p_pic );                             \
+            return NULL;                                                \
+        }                                                               \
+                                                                        \
+        name( p_filter, p_pic, p_outpic );                              \
+                                                                        \
+        p_outpic->date = p_pic->date;                                   \
+        p_outpic->b_force = p_pic->b_force;                             \
+        p_outpic->i_nb_fields = p_pic->i_nb_fields;                     \
+        p_outpic->b_progressive = p_pic->b_progressive;                 \
+        p_outpic->b_top_field_first = p_pic->b_top_field_first;         \
+                                                                        \
+        if( p_pic->pf_release )                                         \
+            p_pic->pf_release( p_pic );                                 \
+        return p_outpic;                                                \
+    }
+
+/**
+ * Filter chain management API
+ */
+
+typedef struct filter_chain_t filter_chain_t;
+
+VLC_EXPORT( filter_chain_t *, __filter_chain_New, ( vlc_object_t *, const char *, bool, int (*)( filter_t *, void * ), void (*)( filter_t * ), void *  ) );
+#define filter_chain_New( a, b, c, d, e, f ) __filter_chain_New( VLC_OBJECT( a ), b, c, d, e, f )
+VLC_EXPORT( void, filter_chain_Delete, ( filter_chain_t * ) );
+VLC_EXPORT( void, filter_chain_Reset, ( filter_chain_t *, const es_format_t *, const es_format_t * ) );
+
+VLC_EXPORT( filter_t *, filter_chain_AppendFilter, ( filter_chain_t *, const char *, config_chain_t *, const es_format_t *, const es_format_t * ) );
+VLC_EXPORT( int, filter_chain_AppendFromString, ( filter_chain_t *, const char * ) );
+VLC_EXPORT( int, filter_chain_DeleteFilter, ( filter_chain_t *, filter_t * ) );
+
+VLC_EXPORT( filter_t *, filter_chain_GetFilter, ( filter_chain_t *, int, const char * ) );
+VLC_EXPORT( int, filter_chain_GetLength, ( filter_chain_t * ) );
+VLC_EXPORT( const es_format_t *, filter_chain_GetFmtOut, ( filter_chain_t * ) );
+
+/**
+ * Apply the filter chain
+ */
+VLC_EXPORT( picture_t *, filter_chain_VideoFilter, ( filter_chain_t *, picture_t * ) );
+VLC_EXPORT( block_t *, filter_chain_AudioFilter, ( filter_chain_t *, block_t * ) );
+VLC_EXPORT( void, filter_chain_SubFilter, ( filter_chain_t *, mtime_t ) );
+
 #endif /* _VLC_FILTER_H */