/*****************************************************************************
* colorthres.c: Threshold color based on similarity to reference color
*****************************************************************************
- * Copyright (C) 2000-2009 the VideoLAN team
+ * Copyright (C) 2000-2009 VLC authors and VideoLAN
* $Id$
*
* Authors: Sigmund Augdal <dnumgis@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
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_sout.h>
-
+#include <vlc_atomic.h>
#include <vlc_filter.h>
#include "filter_picture.h"
set_category( CAT_VIDEO )
set_subcategory( SUBCAT_VIDEO_VFILTER )
set_capability( "video filter2", 0 )
- add_integer( CFG_PREFIX "color", 0x00FF0000, NULL, COLOR_TEXT,
+ add_rgb( CFG_PREFIX "color", 0x00FF0000, COLOR_TEXT,
COLOR_LONGTEXT, false )
- change_integer_list( pi_color_values, ppsz_color_descriptions, NULL )
- add_integer( CFG_PREFIX "saturationthres", 20, NULL,
- N_("Saturaton threshold"), "", false )
- add_integer( CFG_PREFIX "similaritythres", 15, NULL,
+ change_integer_list( pi_color_values, ppsz_color_descriptions )
+ add_integer( CFG_PREFIX "saturationthres", 20,
+ N_("Saturation threshold"), "", false )
+ add_integer( CFG_PREFIX "similaritythres", 15,
N_("Similarity threshold"), "", false )
set_callbacks( Create, Destroy )
vlc_module_end ()
*****************************************************************************/
struct filter_sys_t
{
- int i_simthres;
- int i_satthres;
- int i_color;
- vlc_mutex_t lock;
+ atomic_int i_simthres;
+ atomic_int i_satthres;
+ atomic_int i_color;
};
/*****************************************************************************
config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
p_filter->p_cfg );
- p_sys->i_color = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX "color" );
- p_sys->i_simthres = var_CreateGetIntegerCommand( p_filter,
- CFG_PREFIX "similaritythres" );
- p_sys->i_satthres = var_CreateGetIntegerCommand( p_filter,
- CFG_PREFIX "saturationthres" );
-
- vlc_mutex_init( &p_sys->lock );
+ atomic_init( &p_sys->i_color,
+ var_CreateGetIntegerCommand( p_filter, CFG_PREFIX "color" ) );
+ atomic_init( &p_sys->i_simthres,
+ var_CreateGetIntegerCommand( p_filter, CFG_PREFIX "similaritythres" ) );
+ atomic_init( &p_sys->i_satthres,
+ var_CreateGetIntegerCommand( p_filter, CFG_PREFIX "saturationthres" ) );
- var_AddCallback( p_filter, CFG_PREFIX "color", FilterCallback, NULL );
- var_AddCallback( p_filter, CFG_PREFIX "similaritythres", FilterCallback, NULL );
- var_AddCallback( p_filter, CFG_PREFIX "saturationthres", FilterCallback, NULL );
+ var_AddCallback( p_filter, CFG_PREFIX "color", FilterCallback, p_sys );
+ var_AddCallback( p_filter, CFG_PREFIX "similaritythres", FilterCallback, p_sys );
+ var_AddCallback( p_filter, CFG_PREFIX "saturationthres", FilterCallback, p_sys );
return VLC_SUCCESS;
}
static void Destroy( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
+ filter_sys_t *p_sys = p_filter->p_sys;
- var_DelCallback( p_filter, CFG_PREFIX "color", FilterCallback, NULL );
- var_DelCallback( p_filter, CFG_PREFIX "similaritythres", FilterCallback, NULL );
- var_DelCallback( p_filter, CFG_PREFIX "saturationthres", FilterCallback, NULL );
+ var_DelCallback( p_filter, CFG_PREFIX "color", FilterCallback, p_sys );
+ var_DelCallback( p_filter, CFG_PREFIX "similaritythres", FilterCallback, p_sys );
+ var_DelCallback( p_filter, CFG_PREFIX "saturationthres", FilterCallback, p_sys );
+ free( p_sys );
+}
- vlc_mutex_destroy( &p_filter->p_sys->lock );
- free( p_filter->p_sys );
+static void GetReference( int *refu, int *refv, int *reflength,
+ uint32_t i_color )
+{
+ int i_red = ( i_color & 0xFF0000 ) >> 16;
+ int i_green = ( i_color & 0x00FF00 ) >> 8;
+ int i_blue = ( i_color & 0x0000FF );
+ int i_u = (int8_t)(( -38 * i_red - 74 * i_green + 112 * i_blue + 128) >> 8) + 128;
+ int i_v = (int8_t)(( 112 * i_red - 94 * i_green - 18 * i_blue + 128) >> 8) + 128;
+ *refu = i_u - 0x80;
+ *refv = i_v - 0x80;
+ *reflength = sqrt(*refu * *refu + *refv * *refv);
}
+static bool IsSimilar( int u, int v,
+ int refu, int refv, int reflength,
+ int i_satthres, int i_simthres )
+{
+ int length = sqrt(u * u + v * v);
+
+ int diffu = refu * length - u * reflength;
+ int diffv = refv * length - v * reflength;
+ int64_t difflen2 = diffu * diffu + diffv * diffv;
+ int64_t thres = length * reflength;
+ thres *= thres;
+ return length > i_satthres && (difflen2 * i_simthres < thres);
+}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
{
picture_t *p_outpic;
filter_sys_t *p_sys = p_filter->p_sys;
-
- vlc_mutex_lock( &p_sys->lock );
- int i_simthres = p_sys->i_simthres;
- int i_satthres = p_sys->i_satthres;
- int i_color = p_sys->i_color;
- vlc_mutex_unlock( &p_sys->lock );
+ int i_simthres = atomic_load( &p_sys->i_simthres );
+ int i_satthres = atomic_load( &p_sys->i_satthres );
+ int i_color = atomic_load( &p_sys->i_color );
if( !p_pic ) return NULL;
/*
* Do the U and V planes
*/
- int i_red = ( i_color & 0xFF0000 ) >> 16;
- int i_green = ( i_color & 0xFF00 ) >> 8;
- int i_blue = i_color & 0xFF;
- int i_u = (int8_t)(( -38 * i_red - 74 * i_green +
- 112 * i_blue + 128) >> 8) + 128;
- int i_v = (int8_t)(( 112 * i_red - 94 * i_green -
- 18 * i_blue + 128) >> 8) + 128;
-
- int refu = i_u - 0x80; /*bright red*/
- int refv = i_v - 0x80;
- int reflength = sqrt(refu*refu+refv*refv);
+ int refu, refv, reflength;
+ GetReference( &refu, &refv, &reflength, i_color );
for( int y = 0; y < p_pic->p[U_PLANE].i_visible_lines; y++ )
{
for( int x = 0; x < p_pic->p[U_PLANE].i_visible_pitch; x++ )
{
- /* Length of color vector */
- int inu = *p_src_u - 0x80;
- int inv = *p_src_v - 0x80;
- int length = sqrt(inu*inu+inv*inv);
-
- int diffu = refu * length - inu *reflength;
- int diffv = refv * length - inv *reflength;
- long long int difflen2=diffu*diffu;
- difflen2 +=diffv*diffv;
- long long int thres = length*reflength;
- thres *= thres;
- if( length > i_satthres && (difflen2*i_simthres< thres ) )
+ if( IsSimilar( *p_src_u - 0x80, *p_src_v - 0x80,
+ refu, refv, reflength,
+ i_satthres, i_simthres ) )
+
{
*p_dst_u++ = *p_src_u;
*p_dst_v++ = *p_src_v;
{
picture_t *p_outpic;
filter_sys_t *p_sys = p_filter->p_sys;
-
- vlc_mutex_lock( &p_sys->lock );
- int i_simthres = p_sys->i_simthres;
- int i_satthres = p_sys->i_satthres;
- int i_color = p_sys->i_color;
- vlc_mutex_unlock( &p_sys->lock );
+ int i_simthres = atomic_load( &p_sys->i_simthres );
+ int i_satthres = atomic_load( &p_sys->i_satthres );
+ int i_color = atomic_load( &p_sys->i_color );
if( !p_pic ) return NULL;
}
int i_y_offset, i_u_offset, i_v_offset;
- GetPackedYuvOffsets( p_filter->fmt_in.video.i_chroma,
- &i_y_offset, &i_u_offset, &i_v_offset );
+ int i_ret = GetPackedYuvOffsets( p_filter->fmt_in.video.i_chroma,
+ &i_y_offset, &i_u_offset, &i_v_offset );
+ if( i_ret == VLC_EGENERIC )
+ {
+ picture_Release( p_pic );
+ return NULL;
+ }
/*
* Copy Y and do the U and V planes
*/
- int i_red = ( i_color & 0xFF0000 ) >> 16;
- int i_green = ( i_color & 0xFF00 ) >> 8;
- int i_blue = i_color & 0xFF;
- int i_u = (int8_t)(( -38 * i_red - 74 * i_green +
- 112 * i_blue + 128) >> 8) + 128;
- int i_v = (int8_t)(( 112 * i_red - 94 * i_green -
- 18 * i_blue + 128) >> 8) + 128;
- int refu = i_u - 0x80; /*bright red*/
- int refv = i_v - 0x80;
- int reflength = sqrt(refu*refu+refv*refv);
+ int refu, refv, reflength;
+ GetReference( &refu, &refv, &reflength, i_color );
for( int y = 0; y < p_pic->p->i_visible_lines; y++ )
{
p_dst[i_y_offset + 0] = p_src[i_y_offset + 0];
p_dst[i_y_offset + 2] = p_src[i_y_offset + 2];
- /* Length of color vector */
- int inu = p_src[i_u_offset] - 0x80;
- int inv = p_src[i_v_offset] - 0x80;
- int length = sqrt(inu*inu+inv*inv);
-
- int diffu = refu * length - inu *reflength;
- int diffv = refv * length - inv *reflength;
- long long int difflen2=diffu*diffu;
- difflen2 +=diffv*diffv;
- long long int thres = length*reflength;
- thres *= thres;
- if( length > i_satthres && (difflen2*i_simthres< thres ) )
+ if( IsSimilar( p_src[i_u_offset] - 0x80, p_src[i_v_offset] - 0x80,
+ refu, refv, reflength,
+ i_satthres, i_simthres ) )
{
p_dst[i_u_offset] = p_src[i_u_offset];
p_dst[i_v_offset] = p_src[i_v_offset];
}
static int FilterCallback ( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
+ vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
- (void)oldval; (void)p_data;
- filter_t *p_filter = (filter_t*)p_this;
- filter_sys_t *p_sys = p_filter->p_sys;
+ filter_sys_t *p_sys = p_data;
if( !strcmp( psz_var, CFG_PREFIX "color" ) )
- {
- vlc_mutex_lock( &p_sys->lock );
- p_sys->i_color = newval.i_int;
- vlc_mutex_unlock( &p_sys->lock );
- }
+ atomic_store( &p_sys->i_color, newval.i_int );
else if( !strcmp( psz_var, CFG_PREFIX "similaritythres" ) )
- {
- vlc_mutex_lock( &p_sys->lock );
- p_sys->i_simthres = newval.i_int;
- vlc_mutex_unlock( &p_sys->lock );
- }
+ atomic_store( &p_sys->i_simthres, newval.i_int );
else /* CFG_PREFIX "saturationthres" */
- {
- vlc_mutex_lock( &p_sys->lock );
- p_sys->i_satthres = newval.i_int;
- vlc_mutex_unlock( &p_sys->lock );
- }
+ atomic_store( &p_sys->i_satthres, newval.i_int );
+ (void)p_this; (void)oldval;
return VLC_SUCCESS;
}
projects / vlc / blobdiff