* ALL: Major rework of the subpictures architecture.

  (expect some breakage).
* modules/video_filter/blend.c: new alpha-blending module.

Makefile.am

@@ -98,6 +98,7 @@ HEADERS_include = \
 	include/vlc_error.h \
 	include/vlc_es.h \
 	include/vlc_es_out.h \
+	include/vlc_filter.h \
 	include/vlc_help.h \
 	include/vlc_httpd.h \
 	include/vlc_input.h \

configure.ac

@@ -952,7 +952,7 @@ VLC_ADD_PLUGINS([trivial_mixer spdif_mixer float32_mixer])
 VLC_ADD_PLUGINS([aout_file equalizer])
 VLC_ADD_PLUGINS([i420_rgb i420_yuy2 i422_yuy2 i420_ymga])
 VLC_ADD_PLUGINS([m3u id3 playlist export sgimb])
-VLC_ADD_PLUGINS([rawvideo])
+VLC_ADD_PLUGINS([rawvideo blend])
 VLC_ADD_PLUGINS([wav araw subtitle adpcm a52sys dtssys au])
 VLC_ADD_PLUGINS([access_file access_udp access_tcp access_http ipv4 access_mms])
 VLC_ADD_PLUGINS([access_ftp access_directory sap http])

include/osd.h

@@ -53,7 +53,7 @@ struct text_style_t
 };
 static const text_style_t default_text_style = { 22, 0xffffff, VLC_FALSE, VLC_FALSE, VLC_FALSE };
 
-VLC_EXPORT( subpicture_t *, vout_ShowTextRelative, ( vout_thread_t *, int, char *, text_style_t *, int, int, int, mtime_t ) );
+VLC_EXPORT( int, vout_ShowTextRelative, ( vout_thread_t *, int, char *, text_style_t *, int, int, int, mtime_t ) );
 VLC_EXPORT( int, vout_ShowTextAbsolute, ( vout_thread_t *, int, char *, text_style_t *, int, int, int, mtime_t, mtime_t ) );
 VLC_EXPORT( void,  __vout_OSDMessage, ( vlc_object_t *, int, char *, ... ) );
 /**

include/video_output.h

@@ -123,14 +123,26 @@ struct vout_thread_t
     vout_chroma_t       chroma;                      /**< translation tables */
     /**@}*/
 
-    /* Picture and subpicture heaps */
+    /* Picture heap */
     picture_t           p_picture[2*VOUT_MAX_PICTURES+1];      /**< pictures */
+
+    /* Subpicture properties */
     subpicture_t        p_subpicture[VOUT_MAX_PICTURES];    /**< subpictures */
     subpicture_t        *p_default_channel;   /**< subpicture in the default
                                                    channel */
     int                 i_channel_count;       /**< index of last subpicture
                                                     channel registered */
 
+    filter_t *p_blend;                            /**< alpha blending module */
+    filter_t *p_text;                              /**< text renderer module */
+
+    vlc_bool_t b_force_crop;               /**< force cropping of subpicture */
+    int i_crop_x, i_crop_y, i_crop_width, i_crop_height;       /**< cropping */
+
+    vlc_bool_t b_force_alpha;         /**< force alpha palette of subpicture */
+    uint8_t pi_alpha[4];                           /**< forced alpha palette */
+
+
     /* Statistics */
     count_t          c_loops;
     count_t          c_pictures, c_late_pictures;
@@ -144,15 +156,6 @@ struct vout_thread_t
     /* Filter chain */
     char *psz_filter_chain;
     vlc_bool_t b_filter_change;
-
-    /* text renderer data */
-    text_renderer_sys_t * p_text_renderer_data;        /**< private data for
-                                                           the text renderer */
-    module_t *            p_text_renderer_module;  /**< text renderer module */
-    /** callback used when a new string needs to be shown on the vout */
-    subpicture_t * ( *pf_add_string ) ( vout_thread_t *, int, char *,
-                                        text_style_t *, int, int, int, mtime_t,
-                                        mtime_t );
 };
 
 #define I_OUTPUTPICTURES p_vout->output.i_pictures
@@ -268,10 +271,16 @@ VLC_EXPORT( void,            vout_DestroySubPicture,  ( vout_thread_t *, subpict
 VLC_EXPORT( void,            vout_DisplaySubPicture,  ( vout_thread_t *, subpicture_t * ) );
 VLC_EXPORT( int,             vout_RegisterOSDChannel, ( vout_thread_t * ) );
 VLC_EXPORT( void,            vout_ClearOSDChannel,    ( vout_thread_t *, int ) );
-
-subpicture_t *  vout_SortSubPictures    ( vout_thread_t *, mtime_t );
-void            vout_RenderSubPictures  ( vout_thread_t *, picture_t *,
-                                                           subpicture_t * );
+#define spu_CreateRegion(a,b) __spu_CreateRegion(VLC_OBJECT(a),b)
+VLC_EXPORT( subpicture_region_t *,__spu_CreateRegion, ( vlc_object_t *, video_format_t * ) );
+#define spu_DestroyRegion(a,b) __spu_DestroyRegion(VLC_OBJECT(a),b)
+VLC_EXPORT( void, __spu_DestroyRegion, ( vlc_object_t *, subpicture_region_t * ) );
+
+void           vout_InitSPU( vout_thread_t * );
+void           vout_DestroySPU( vout_thread_t * );
+subpicture_t * vout_SortSubPictures  ( vout_thread_t *, mtime_t );
+void           vout_RenderSubPictures( vout_thread_t *, picture_t *,
+                                       subpicture_t * );
 /** @}*/
 /**
  * @}

include/vlc_codec.h

@@ -48,7 +48,7 @@ struct decoder_t
 
     picture_t *         ( * pf_decode_video )( decoder_t *, block_t ** );
     aout_buffer_t *     ( * pf_decode_audio )( decoder_t *, block_t ** );
-    void                ( * pf_decode_sub)   ( decoder_t *, block_t ** );
+    subpicture_t *      ( * pf_decode_sub)   ( decoder_t *, block_t ** );
     block_t *           ( * pf_packetize )   ( decoder_t *, block_t ** );
 
     /* Some decoders only accept packetized data (ie. not truncated) */
@@ -74,6 +74,9 @@ struct decoder_t
     void            ( * pf_picture_link)    ( decoder_t *, picture_t * );
     void            ( * pf_picture_unlink)  ( decoder_t *, picture_t * );
 
+    /* SPU output callbacks */
+    subpicture_t *  ( * pf_spu_buffer_new) ( decoder_t * );
+    void            ( * pf_spu_buffer_del) ( decoder_t *, subpicture_t * );
 
     /* Private structure for the owner of the decoder */
     decoder_owner_sys_t *p_owner;

include/vlc_common.h

@@ -277,6 +277,7 @@ typedef struct picture_sys_t picture_sys_t;
 typedef struct picture_heap_t picture_heap_t;
 typedef struct subpicture_t subpicture_t;
 typedef struct subpicture_sys_t subpicture_sys_t;
+typedef struct subpicture_region_t subpicture_region_t;
 typedef struct vout_synchro_t vout_synchro_t;
 typedef struct text_renderer_sys_t text_renderer_sys_t;
 typedef struct text_style_t text_style_t;
@@ -314,6 +315,10 @@ typedef struct decoder_sys_t  decoder_sys_t;
 typedef struct encoder_t      encoder_t;
 typedef struct encoder_sys_t  encoder_sys_t;
 
+/* Filters */
+typedef struct filter_t filter_t;
+typedef struct filter_sys_t filter_sys_t;
+
 /* Misc */
 typedef struct data_packet_t data_packet_t;
 typedef struct data_buffer_t data_buffer_t;

include/vlc_es.h

@@ -36,10 +36,8 @@
  */
 struct video_palette_t
 {
-    int i_dummy; /**< to keep the compatibility with ffmpeg's palette */
-
-    uint32_t palette[256]; /**< 4-byte ARGB palette entries, stored in native
-                            * byte order */
+    int i_dummy;        /**< to keep the compatibility with ffmpeg's palette */
+    uint8_t palette[256][4];                   /**< 4-byte RGBA/YUVA palette */
 };
 
 /**
@@ -96,6 +94,7 @@ struct video_format_t
     unsigned int i_frame_rate;                     /**< frame rate numerator */
     unsigned int i_frame_rate_base;              /**< frame rate denominator */
 
+    int i_rmask, i_rgmask, i_bmask;          /**< color masks for RGB chroma */
     video_palette_t *p_palette;              /**< video palette from demuxer */
 };
 

include/vlc_filter.h

+/*****************************************************************************
+ * vlc_codec.h: codec related structures
+ *****************************************************************************
+ * Copyright (C) 1999-2003 VideoLAN
+ * $Id$
+ *
+ * Authors: Gildas Bazin <gbazin@videolan.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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+#ifndef _VLC_FILTER_H
+#define _VLC_FILTER_H 1
+
+/**
+ * \file
+ * This file defines the structure and types used by video and audio filters
+ */
+
+typedef struct filter_owner_sys_t filter_owner_sys_t;
+
+/**
+ * \defgroup filter Filter
+ *
+ * The structure describing a filter
+ *
+ * @{
+ */
+struct filter_t
+{
+    VLC_COMMON_MEMBERS
+
+    /* Module properties */
+    module_t *          p_module;
+    filter_sys_t *     p_sys;
+
+    void                ( * pf_video_blend )  ( filter_t *, picture_t *,
+                                                picture_t *, picture_t *,
+                                                int, int );
+    picture_t *         ( * pf_video_filter ) ( filter_t *, picture_t * );
+
+    subpicture_t *      ( *pf_render_string ) ( filter_t *, block_t * );
+
+    /* Input format */
+    es_format_t         fmt_in;
+
+    /* Output format of filter */
+    es_format_t         fmt_out;
+
+    /*
+     * Buffers allocation
+     */
+
+    /* Audio output callbacks */
+    aout_buffer_t * ( * pf_aout_buffer_new) ( filter_t *, int );
+    void            ( * pf_aout_buffer_del) ( filter_t *, aout_buffer_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 * );
+
+    /* SPU output callbacks */
+    subpicture_t *  ( * pf_spu_buffer_new) ( filter_t * );
+    void            ( * pf_spu_buffer_del) ( filter_t *, subpicture_t * );
+
+    /* Private structure for the owner of the decoder */
+    filter_owner_sys_t *p_owner;
+};
+
+/**
+ * @}
+ */
+
+#endif /* _VLC_FILTER_H */

include/vlc_video.h

@@ -175,6 +175,8 @@ struct picture_heap_t
 #define U_PITCH      p[U_PLANE].i_pitch
 #define V_PIXELS     p[V_PLANE].p_pixels
 #define V_PITCH      p[V_PLANE].i_pitch
+#define A_PIXELS     p[A_PLANE].p_pixels
+#define A_PITCH      p[A_PLANE].i_pitch
 
 /**
  * \defgroup subpicture Video Subpictures
@@ -184,6 +186,28 @@ struct picture_heap_t
  * @{
  */
 
+/**
+ * Video subtitle region
+ *
+ * A subtitle region is defined by a picture (graphic) and its rendering
+ * coordinates.
+ * Subtitles contain a list of regions.
+ */
+struct subpicture_region_t
+{
+    /** \name Region properties */
+    /**@{*/
+    video_format_t  fmt;                          /**< format of the picture */
+    picture_t       picture;             /**< picture comprising this region */
+
+    int             i_x;                             /**< position of region */
+    int             i_y;                             /**< position of region */
+
+    subpicture_region_t *p_next;                /**< next region in the list */
+    /**@}*/
+
+};
+
 /**
  * Video subtitle
  *
@@ -216,6 +240,8 @@ struct subpicture_t
                                       untill the next one appear */
     /**@}*/
 
+    subpicture_region_t *p_region;  /**< region list composing this subtitle */
+
     /** \name Display properties
      * These properties are only indicative and may be
      * changed by the video output thread, or simply ignored depending of the
@@ -225,13 +251,20 @@ struct subpicture_t
     int             i_y;                 /**< offset from alignment position */
     int             i_width;                              /**< picture width */
     int             i_height;                            /**< picture height */
-    /**@}*/
+    int             b_absolute;                    /**< position is absolute */
+    int             i_flags;                             /**< position flags */
+     /**@}*/
 
     /** Pointer to function that renders this subtitle in a picture */
     void ( *pf_render )  ( vout_thread_t *, picture_t *, const subpicture_t * );
     /** Pointer to function that cleans up the private data of this subtitle */
     void ( *pf_destroy ) ( subpicture_t * );
 
+    /** Pointer to functions for region management */
+    subpicture_region_t * ( *pf_create_region ) ( vlc_object_t *,
+                                                  video_format_t * );
+    void ( *pf_destroy_region ) ( vlc_object_t *, subpicture_region_t * );
+
     /** Private data - the subtitle plugin might want to put stuff here to
      * keep track of the subpicture */
     subpicture_sys_t *p_sys;                              /* subpicture data */

modules/codec/dvbsub.c

@@ -37,8 +37,10 @@
 /*****************************************************************************
  * Module descriptor.
  *****************************************************************************/
-static int  Open ( vlc_object_t *p_this );
-static void Close( vlc_object_t *p_this );
+static int  Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+static subpicture_t *Decode( decoder_t *, block_t ** );
+
 
 vlc_module_begin();
     set_description( _("DVB subtitles decoder") );
@@ -173,33 +175,14 @@ typedef struct
 
 } dvbsub_clut_t;
 
-typedef struct dvbsub_render_s
-{
-    uint16_t               i_x;
-    uint16_t               i_y;
-    dvbsub_image_t         *p_rle_top;
-    dvbsub_image_t         *p_rle_bot;
-
-    struct dvbsub_render_s *p_next;
-
-} dvbsub_render_t;
-
-struct subpicture_sys_t
-{
-    dvbsub_render_t         *p_objects;  /* Linked list of objects to render */
-};
-
 struct decoder_sys_t
 {
-    vout_thread_t   *p_vout;
-
     bs_t            bs;
 
     /* Decoder internal data */
-    int i_id;
-    int i_ancillary_id;
-
-    mtime_t i_pts;
+    int             i_id;
+    int             i_ancillary_id;
+    mtime_t         i_pts;
 
     dvbsub_page_t   *p_page;
     dvbsub_region_t *p_regions;
@@ -207,9 +190,6 @@ struct decoder_sys_t
 
     dvbsub_clut_t   *p_clut[256];
     dvbsub_clut_t   default_clut;
-
-    subpicture_t    *p_spu;
-    int             i_subpic_channel;
 };
 
 
@@ -243,8 +223,6 @@ struct decoder_sys_t
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
-static void Decode( decoder_t *, block_t ** );
-
 static void decode_segment( decoder_t *, bs_t * );
 static void decode_page_composition( decoder_t *, bs_t * );
 static void decode_region_composition( decoder_t *, bs_t * );
@@ -254,7 +232,8 @@ static void decode_clut( decoder_t *, bs_t * );
 static void free_objects( decoder_t * );
 static void free_all( decoder_t * );
 
-static void render( decoder_t *, vout_thread_t * );
+static subpicture_t *render( decoder_t * );
+
 static void default_clut_init( decoder_t * );
 
 /*****************************************************************************
@@ -283,8 +262,6 @@ static int Open( vlc_object_t *p_this )
     p_sys->p_page         = NULL;
     p_sys->p_regions      = NULL;
     p_sys->p_objects      = NULL;
-    p_sys->p_vout         = NULL;
-    p_sys->p_spu          = NULL;
     for( i = 0; i < 256; i++ ) p_sys->p_clut[i] = NULL;
 
     es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_FOURCC( 'd','v','b','s' ) );
@@ -302,22 +279,6 @@ static void Close( vlc_object_t *p_this )
     decoder_t     *p_dec = (decoder_t*) p_this;
     decoder_sys_t *p_sys = p_dec->p_sys;
 
-    if( p_sys->p_vout && p_sys->p_vout->p_subpicture != NULL )
-    {
-        subpicture_t *p_subpic;
-        int i_subpic;
-        for( i_subpic = 0; i_subpic < VOUT_MAX_SUBPICTURES; i_subpic++ )
-        {
-            p_subpic = &p_sys->p_vout->p_subpicture[i_subpic];
-            if( p_subpic != NULL &&
-                ( p_subpic->i_status == RESERVED_SUBPICTURE ||
-                  p_subpic->i_status == READY_SUBPICTURE ) )
-            {
-                vout_DestroySubPicture( p_sys->p_vout, p_subpic );
-            }
-        }
-    }
-
     free_all( p_dec );
     free( p_sys );
 }
@@ -325,16 +286,13 @@ static void Close( vlc_object_t *p_this )
 /*****************************************************************************
  * Decode:
  *****************************************************************************/
-static void Decode( decoder_t *p_dec, block_t **pp_block )
+static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
 {
     decoder_sys_t *p_sys = p_dec->p_sys;
     block_t       *p_block;
-    vout_thread_t *p_last_vout;
+    subpicture_t  *p_spu = NULL;
 
-    if( pp_block == NULL || *pp_block == NULL )
-    {
-        return;
-    }
+    if( pp_block == NULL || *pp_block == NULL ) return NULL;
     p_block = *pp_block;
     *pp_block = NULL;
 
@@ -343,7 +301,7 @@ static void Decode( decoder_t *p_dec, block_t **pp_block )
     {
         msg_Warn( p_dec, "non dated subtitle" );
         block_Release( p_block );
-        return;
+        return NULL;
     }
 
     bs_init( &p_sys->bs, p_block->p_buffer, p_block->i_buffer );
@@ -352,14 +310,14 @@ static void Decode( decoder_t *p_dec, block_t **pp_block )
     {
         msg_Dbg( p_dec, "invalid data identifier" );
         block_Release( p_block );
-        return;
+        return NULL;
     }
 
     if( bs_read( &p_sys->bs, 8 ) != 0x20 && 0 ) /* Subtitle stream id */
     {
         msg_Dbg( p_dec, "invalid subtitle stream id" );
         block_Release( p_block );
-        return;
+        return NULL;
     }
 
     while( bs_show( &p_sys->bs, 8 ) == 0x0f ) /* Sync byte */
@@ -371,29 +329,15 @@ static void Decode( decoder_t *p_dec, block_t **pp_block )
     {
         msg_Warn( p_dec, "end marker not found (corrupted subtitle ?)" );
         block_Release( p_block );
-        return;
+        return NULL;
     }
 
-    p_last_vout = p_sys->p_vout;
-    if( ( p_sys->p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT,
-                                           FIND_ANYWHERE ) ) )
-    {
-        if( p_last_vout != p_sys->p_vout )
-        {
-            p_sys->i_subpic_channel =
-                vout_RegisterOSDChannel( p_sys->p_vout );
-        }
-
-        /* Check if the page is to be displayed */
-        if( p_sys->p_page ) render( p_dec, p_sys->p_vout );
-
-        vlc_object_release( p_sys->p_vout );
-    }
-#ifdef DEBUG_DVBSUB
-    else if( p_sys->p_page ) render( p_dec, NULL );
-#endif
+    /* Check if the page is to be displayed */
+    if( p_sys->p_page ) p_spu = render( p_dec );
 
     block_Release( p_block );
+
+    return p_spu;
 }
 
 /* following functions are local */
@@ -1174,27 +1118,6 @@ static uint16_t dvbsub_pdata8bpp( bs_t *s, uint16_t* p,
     return ( i_processed + 7 ) / 8 ;
 }
 
-static dvbsub_image_t *dup_image( dvbsub_image_t *p_i )
-{
-    dvbsub_image_t *p_image = malloc( sizeof(dvbsub_image_t) );
-    dvbsub_rle_t *p_rle = p_i->p_codes;
-
-    *p_image = *p_i;
-    p_image->p_last = NULL;
-
-    while( p_rle )
-    {
-        dvbsub_rle_t *p_last = p_image->p_last;
-        p_image->p_last = malloc( sizeof(dvbsub_rle_t) );
-        if( !p_last ) p_image->p_codes = p_image->p_last;
-        if( p_last ) p_last->p_next = p_image->p_last;
-        *p_image->p_last = *p_rle;
-        p_rle = p_rle->p_next;
-    }
-
-    return p_image;
-}
-
 static void free_image( dvbsub_image_t *p_i )
 {
     dvbsub_rle_t *p1;
@@ -1210,21 +1133,6 @@ static void free_image( dvbsub_image_t *p_i )
     free( p_i );
 }
 
-static void free_spu( subpicture_t *p_spu )
-{
-    dvbsub_render_t *p_obj, *p_obj_next;
-
-    for( p_obj = p_spu->p_sys->p_objects; p_obj != NULL; p_obj = p_obj_next )
-    {
-        p_obj_next = p_obj->p_next;
-        free_image( p_obj->p_rle_top );
-        free_image( p_obj->p_rle_bot );
-        free( p_obj );
-    }
-    free( p_spu->p_sys );
-    p_spu->p_sys = NULL;
-}
-
 static void free_objects( decoder_t *p_dec )
 {
     decoder_sys_t *p_sys = p_dec->p_sys;
@@ -1271,201 +1179,20 @@ static void free_all( decoder_t *p_dec )
     free_objects( p_dec );
 }
 
-static void RenderYUY2( vout_thread_t *p_vout, picture_t *p_pic,
-                        dvbsub_render_t *p_r )
-{
-    /* Common variables */
-    uint8_t  *p_desty;
-    uint16_t i,j;
-    uint16_t i_cnt;
-    uint16_t x, y;
-    dvbsub_rle_t* p_c;
-    dvbsub_image_t* p_im = p_r->p_rle_top;
-    i=0;
-    j=0;
-    p_desty = p_pic->Y_PIXELS;
-    //let's render the 1st frame
-    for(p_c = p_im->p_codes; p_c->p_next != NULL; p_c=p_c->p_next)
-    {
-        //if( p_c->y != 0  && p_c->t < 0x20)
-        if( p_c->y != 0  && p_c->t < 0x20)
-        {
-            x = j+ p_r->i_x;
-            y = 2*i+p_r->i_y;
-            //memset(p_desty+ y*p_pic->Y_PITCH + x, p_c->y, p_c->i_num);
-            // In YUY2 we have to set pixel per pixel
-            for( i_cnt = 0; i_cnt < p_c->i_num; i_cnt+=2 )
-            {
-                memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt, p_c->y, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+1, p_c->cr, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+2, p_c->y, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+3, p_c->cb, 1);
-            }
-        }
-        j += p_c->i_num;
-        if(j >= p_im->i_cols[i])
-        {
-            i++; j=0;
-        }
-        if( i>= p_im->i_rows) break;
-    }
-    //idem for the second frame
-    p_im = p_r->p_rle_bot; i=0; j=0;
-    for(p_c = p_im->p_codes; p_c->p_next != NULL; p_c=p_c->p_next)
-    {
-        if( p_c->y != 0 && p_c->t < 0x20)
-        {
-            x = j+ p_r->i_x;
-            y = 2*i+1+p_r->i_y;
-            //memset(p_desty+ y*p_pic->Y_PITCH + x, p_c->y, p_c->i_num);
-            // In YUY2 we have to set pixel per pixel
-            for( i_cnt = 0; i_cnt < p_c->i_num; i_cnt+=2 )
-            {
-                memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt, p_c->y, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+1, p_c->cr, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+2, p_c->y, 1);
-              //memset(p_desty+ y*p_pic->Y_PITCH + 2*x + i_cnt+3, p_c->cb, 1);
-           }
-        }
-        j += p_c->i_num;
-        if(j >= p_im->i_cols[i])
-        {
-            i++; j=0;
-        }
-        if( i>= p_im->i_rows) break;
-    }
-}
-
-static void RenderI42x( vout_thread_t *p_vout, picture_t *p_pic,
-                        dvbsub_render_t *p_r )
-{
-    /* Common variables */
-    uint8_t *p_desty = p_pic->Y_PIXELS;
-    uint8_t *p_destu = p_pic->U_PIXELS;
-    uint8_t *p_destv = p_pic->V_PIXELS;
-    dvbsub_image_t* p_im = p_r->p_rle_top;
-    dvbsub_rle_t* p_c;
-    uint16_t i, j, x, y;
-    int i_x_subsampling =
-        p_vout->output.i_chroma == VLC_FOURCC('I','4','2','2') ? 1 : 2;
-
-    /* Let's render the top field */
-    p_im = p_r->p_rle_bot; i = 0; j = 0;
-    for( p_c = p_im->p_codes; p_c->p_next != NULL; p_c = p_c->p_next )
-    {
-        if( p_c->y != 0 && p_c->t != 0xFF )
-        {
-            x = j + p_r->i_x;
-            y = 2 * i + p_r->i_y;
-            memset( p_desty + y * p_pic->Y_PITCH + x, p_c->y, p_c->i_num );
-
-            memset( p_destu + y/2 * p_pic->U_PITCH + x/i_x_subsampling,
-                    p_c->cr, p_c->i_num/i_x_subsampling );
-            memset( p_destv + y/2 * p_pic->V_PITCH + x/i_x_subsampling,
-                    p_c->cb, p_c->i_num/i_x_subsampling );
-        }
-
-        j += p_c->i_num;
-        if( j >= p_im->i_cols[i] )
-        {
-            i++; j=0;