--- /dev/null
+/*****************************************************************************
+ * rv32.c: conversion plugin to RV32 format.
+ *****************************************************************************
+ * Copyright (C) 2005 the VideoLAN team
+ * $Id$
+ *
+ * Author: Cyril Deguet <asmax@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.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+#include <vlc/decoder.h>
+#include "vlc_filter.h"
+
+/*****************************************************************************
+ * filter_sys_t : filter descriptor
+ *****************************************************************************/
+struct filter_sys_t
+{
+ es_format_t fmt_in;
+ es_format_t fmt_out;
+};
+
+/****************************************************************************
+ * Local prototypes
+ ****************************************************************************/
+static int OpenFilter ( vlc_object_t * );
+static void CloseFilter( vlc_object_t * );
+
+static picture_t *Filter( filter_t *, picture_t * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("RV32 conversion filter") );
+ set_capability( "video filter2", 1 );
+ set_category( CAT_VIDEO );
+ set_subcategory( SUBCAT_VIDEO_VFILTER );
+ set_callbacks( OpenFilter, CloseFilter );
+vlc_module_end();
+
+/*****************************************************************************
+ * OpenFilter: probe the filter and return score
+ *****************************************************************************/
+static int OpenFilter( vlc_object_t *p_this )
+{
+ filter_t *p_filter = (filter_t*)p_this;
+ filter_sys_t *p_sys;
+
+ /* XXX Only support RV24 -> RV32 conversion */
+ if( p_filter->fmt_in.video.i_chroma != VLC_FOURCC('R','V','2','4') ||
+ p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R', 'V', '3', '2') )
+ {
+ return VLC_EGENERIC;
+ }
+
+ /* Allocate the memory needed to store the decoder's structure */
+ if( ( p_filter->p_sys = p_sys =
+ (filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
+ {
+ msg_Err( p_filter, "out of memory" );
+ return VLC_EGENERIC;
+ }
+
+ p_filter->pf_video_filter = Filter;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * CloseFilter: clean up the filter
+ *****************************************************************************/
+static void CloseFilter( vlc_object_t *p_this )
+{
+ filter_t *p_filter = (filter_t*)p_this;
+ filter_sys_t *p_sys = p_filter->p_sys;
+
+ free( p_sys );
+}
+
+/****************************************************************************
+ * Filter: the whole thing
+ ****************************************************************************/
+static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
+{
+ picture_t *p_pic_dst;
+ int i_plane, i;
+ unsigned int j;
+
+ /* Request output picture */
+ p_pic_dst = p_filter->pf_vout_buffer_new( p_filter );
+ if( !p_pic_dst )
+ {
+ msg_Warn( p_filter, "can't get output picture" );
+ if( p_pic->pf_release )
+ p_pic->pf_release( p_pic );
+ return NULL;
+ }
+
+ /* Convert RV24 to RV32 */
+ for( i_plane = 0; i_plane < p_pic_dst->i_planes; i_plane++ )
+ {
+ uint8_t *p_src = p_pic->p[i_plane].p_pixels;
+ uint8_t *p_dst = p_pic_dst->p[i_plane].p_pixels;
+ unsigned int i_width = p_filter->fmt_out.video.i_width;
+
+ for( i = 0; i < p_pic_dst->p[i_plane].i_lines; i++ )
+ {
+ for( j = 0; j < i_width; j++ )
+ {
+ *(p_dst++) = p_src[2];
+ *(p_dst++) = p_src[1];
+ *(p_dst++) = p_src[0];
+ *(p_dst++) = 0xff; /* Alpha */
+ p_src += 3;
+ }
+ p_src += p_pic->p[i_plane].i_pitch - 3 * i_width;
+ p_dst += p_pic_dst->p[i_plane].i_pitch - 4 * i_width;
+ }
+ }
+
+ p_pic_dst->date = p_pic->date;
+ p_pic_dst->b_force = p_pic->b_force;
+ p_pic_dst->i_nb_fields = p_pic->i_nb_fields;
+ p_pic_dst->b_progressive = p_pic->b_progressive;
+ p_pic_dst->b_top_field_first = p_pic->b_top_field_first;
+
+ p_pic->pf_release( p_pic );
+ return p_pic_dst;
+}
+