/*****************************************************************************
* distort.c : Misc video effects plugin for vlc
*****************************************************************************
- * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
- * $Id: distort.c,v 1.11 2003/10/15 22:49:48 gbazin Exp $
+ * Copyright (C) 2000-2006 the VideoLAN team
+ * $Id$
*
* Authors: Samuel Hocevar <sam@zoy.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
*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
#include <vlc/vout.h>
#include "filter_common.h"
+#include "vlc_image.h"
-#define DISTORT_MODE_WAVE 1
-#define DISTORT_MODE_RIPPLE 2
+enum { WAVE, RIPPLE, GRADIENT, EDGE, HOUGH, PSYCHEDELIC };
/*****************************************************************************
* Local prototypes
static void DistortWave ( vout_thread_t *, picture_t *, picture_t * );
static void DistortRipple ( vout_thread_t *, picture_t *, picture_t * );
+static void DistortGradient( vout_thread_t *, picture_t *, picture_t * );
+static void DistortEdge ( vout_thread_t *, picture_t *, picture_t * );
+static void DistortHough ( vout_thread_t *, picture_t *, picture_t * );
+static void DistortPsychedelic( vout_thread_t *, picture_t *, picture_t * );
static int SendEvents ( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
* Module descriptor
*****************************************************************************/
#define MODE_TEXT N_("Distort mode")
-#define MODE_LONGTEXT N_("Distort mode, one of \"wave\" and \"ripple\"")
+#define MODE_LONGTEXT N_("Distort mode, one of \"wave\", \"ripple\", \"gradient\", \"edge\", \"hough\" and \"psychedelic\"")
-static char *mode_list[] = { "wave", "ripple", NULL };
+#define GRADIENT_TEXT N_("Gradient image type")
+#define GRADIENT_LONGTEXT N_("Gradient image type (0 or 1). 0 will " \
+ "turn the image to white while 1 will keep colors." )
+
+#define CARTOON_TEXT N_("Apply cartoon effect")
+#define CARTOON_LONGTEXT N_("Apply cartoon effect. Used by \"gradient\" " \
+ "and \"edge\".")
+
+static char *mode_list[] = { "wave", "ripple", "gradient", "edge", "hough",
+ "psychedelic" };
+static char *mode_list_text[] = { N_("Wave"), N_("Ripple"), N_("Gradient"),
+ N_("Edge"), N_("Hough"), N_("Psychedelic") };
vlc_module_begin();
- add_category_hint( N_("Distort"), NULL, VLC_FALSE );
- add_string_from_list( "distort-mode", "wave", mode_list, NULL,
- MODE_TEXT, MODE_LONGTEXT, VLC_FALSE );
- set_description( _("miscellaneous distort video effects filter") );
+ set_description( _("Distort video filter") );
+ set_shortname( N_( "Distortion" ));
set_capability( "video filter", 0 );
+ set_category( CAT_VIDEO );
+ set_subcategory( SUBCAT_VIDEO_VFILTER );
+
+ add_string( "distort-mode", "wave", NULL, MODE_TEXT, MODE_LONGTEXT,
+ VLC_FALSE );
+ change_string_list( mode_list, mode_list_text, 0 );
+
+ add_integer_with_range( "distort-gradient-type", 0, 0, 1, NULL,
+ GRADIENT_TEXT, GRADIENT_LONGTEXT, VLC_FALSE );
+ add_bool( "distort-cartoon", 1, NULL,
+ CARTOON_TEXT, CARTOON_LONGTEXT, VLC_FALSE );
+
add_shortcut( "distort" );
set_callbacks( Create, Destroy );
vlc_module_end();
/* For the wave mode */
double f_angle;
mtime_t last_date;
+
+ /* For the gradient mode */
+ int i_gradient_type;
+ vlc_bool_t b_cartoon;
+
+ /* For pyschedelic mode */
+ image_handler_t *p_image;
+ unsigned int x, y, scale;
+ int xinc, yinc, scaleinc;
+ uint8_t u,v;
+
+ /* For hough mode */
+ int *p_pre_hough;
};
+/*****************************************************************************
+ * Control: control facility for the vout (forwards to child vout)
+ *****************************************************************************/
+static int Control( vout_thread_t *p_vout, int i_query, va_list args )
+{
+ return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
+}
+
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
p_vout->pf_manage = NULL;
p_vout->pf_render = Render;
p_vout->pf_display = NULL;
+ p_vout->pf_control = Control;
p_vout->p_sys->i_mode = 0;
- /* Look what method was requested from command line*/
- if( !(psz_method = psz_method_tmp = config_GetPsz( p_vout, "filter" )) )
- {
- msg_Err( p_vout, "configuration variable %s empty", "filter" );
- return VLC_EGENERIC;
- }
- while( *psz_method && *psz_method != ':' )
- {
- psz_method++;
- }
+ p_vout->p_sys->p_pre_hough = NULL;
- if( !strcmp( psz_method, ":wave" ) )
+ if( !(psz_method = psz_method_tmp
+ = config_GetPsz( p_vout, "distort-mode" )) )
{
- p_vout->p_sys->i_mode = DISTORT_MODE_WAVE;
+ msg_Err( p_vout, "configuration variable %s empty, using 'wave'",
+ "distort-mode" );
+ p_vout->p_sys->i_mode = WAVE;
}
- else if( !strcmp( psz_method, ":ripple" ) )
+ else
{
- p_vout->p_sys->i_mode = DISTORT_MODE_RIPPLE;
- }
- free( psz_method_tmp );
- if( !p_vout->p_sys->i_mode )
- {
- /* No method given in commandline. Look what method was
- requested in configuration system */
- if( !(psz_method = psz_method_tmp
- = config_GetPsz( p_vout, "distort-mode" )) )
+ if( !strcmp( psz_method, "wave" ) )
{
- msg_Err( p_vout, "configuration variable %s empty, using 'wave'",
- "distort-mode" );
- p_vout->p_sys->i_mode = DISTORT_MODE_WAVE;
+ p_vout->p_sys->i_mode = WAVE;
}
- else {
-
- if( !strcmp( psz_method, "wave" ) )
- {
- p_vout->p_sys->i_mode = DISTORT_MODE_WAVE;
- }
- else if( !strcmp( psz_method, "ripple" ) )
- {
- p_vout->p_sys->i_mode = DISTORT_MODE_RIPPLE;
- }
- else
- {
- msg_Err( p_vout, "no valid distort mode provided, "
- "using wave" );
- p_vout->p_sys->i_mode = DISTORT_MODE_WAVE;
- }
+ else if( !strcmp( psz_method, "ripple" ) )
+ {
+ p_vout->p_sys->i_mode = RIPPLE;
+ }
+ else if( !strcmp( psz_method, "gradient" ) )
+ {
+ p_vout->p_sys->i_mode = GRADIENT;
+ }
+ else if( !strcmp( psz_method, "edge" ) )
+ {
+ p_vout->p_sys->i_mode = EDGE;
+ }
+ else if( !strcmp( psz_method, "hough" ) )
+ {
+ p_vout->p_sys->i_mode = HOUGH;
+ }
+ else if( !strcmp( psz_method, "psychedelic" ) )
+ {
+ p_vout->p_sys->i_mode = PSYCHEDELIC;
+ p_vout->p_sys->x = 10;
+ p_vout->p_sys->y = 10;
+ p_vout->p_sys->scale = 1;
+ p_vout->p_sys->xinc = 1;
+ p_vout->p_sys->yinc = 1;
+ p_vout->p_sys->scaleinc = 1;
+ p_vout->p_sys->u = 0;
+ p_vout->p_sys->v = 0;
+ }
+ else
+ {
+ msg_Err( p_vout, "no valid distort mode provided, "
+ "using wave" );
+ p_vout->p_sys->i_mode = WAVE;
}
}
free( psz_method_tmp );
+ p_vout->p_sys->i_gradient_type =
+ config_GetInt( p_vout, "distort-gradient-type" );
+ p_vout->p_sys->b_cartoon =
+ config_GetInt( p_vout, "distort-cartoon" );
+
return VLC_SUCCESS;
}
{
int i_index;
picture_t *p_pic;
+ video_format_t fmt = {0};
I_OUTPUTPICTURES = 0;
p_vout->output.i_width = p_vout->render.i_width;
p_vout->output.i_height = p_vout->render.i_height;
p_vout->output.i_aspect = p_vout->render.i_aspect;
+ p_vout->fmt_out = p_vout->fmt_in;
+ fmt = p_vout->fmt_out;
/* Try to open the real video output */
msg_Dbg( p_vout, "spawning the real video output" );
- p_vout->p_sys->p_vout = vout_Create( p_vout,
- p_vout->render.i_width, p_vout->render.i_height,
- p_vout->render.i_chroma, p_vout->render.i_aspect );
+ p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
/* Everything failed */
if( p_vout->p_sys->p_vout == NULL )
{
msg_Err( p_vout, "cannot open vout, aborting" );
-
return VLC_EGENERIC;
}
p_vout->p_sys->f_angle = 0.0;
p_vout->p_sys->last_date = 0;
+ p_vout->p_sys->p_image = NULL;
+
return VLC_SUCCESS;
}
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
- 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 );
+ 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 );
+ if(p_vout->p_sys->p_pre_hough)
+ free(p_vout->p_sys->p_pre_hough);
+
+ if( p_vout->p_sys->p_image )
+ image_HandlerDelete( p_vout->p_sys->p_image );
+
free( p_vout->p_sys );
}
switch( p_vout->p_sys->i_mode )
{
- case DISTORT_MODE_WAVE:
+ case WAVE:
DistortWave( p_vout, p_pic, p_outpic );
break;
- case DISTORT_MODE_RIPPLE:
+ case RIPPLE:
DistortRipple( p_vout, p_pic, p_outpic );
break;
+ case EDGE:
+ DistortEdge( p_vout, p_pic, p_outpic );
+ break;
+
+ case GRADIENT:
+ DistortGradient( p_vout, p_pic, p_outpic );
+ break;
+
+ case HOUGH:
+ DistortHough( p_vout, p_pic, p_outpic );
+ break;
+
+ case PSYCHEDELIC:
+ DistortPsychedelic( p_vout, p_pic, p_outpic );
+ break;
+
default:
break;
}
p_in = p_inpic->p[i_index].p_pixels;
p_out = p_outpic->p[i_index].p_pixels;
- i_num_lines = p_inpic->p[i_index].i_lines;
+ i_num_lines = p_inpic->p[i_index].i_visible_lines;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
- i_num_lines = p_inpic->p[i_index].i_lines;
+ i_num_lines = p_inpic->p[i_index].i_visible_lines;
i_first_line = i_num_lines * 4 / 5;
}
}
+/*****************************************************************************
+ * Gaussian Convolution
+ *****************************************************************************
+ * Gaussian convolution ( sigma == 1.4 )
+ *
+ * | 2 4 5 4 2 | | 2 4 4 4 2 |
+ * | 4 9 12 9 4 | | 4 8 12 8 4 |
+ * | 5 12 15 12 5 | ~ | 4 12 16 12 4 |
+ * | 4 9 12 9 4 | | 4 8 12 8 4 |
+ * | 2 4 5 4 2 | | 2 4 4 4 2 |
+ *****************************************************************************/
+static void GaussianConvolution( picture_t *p_inpic, uint32_t *p_smooth )
+{
+ uint8_t *p_inpix = p_inpic->p[Y_PLANE].p_pixels;
+ int i_src_pitch = p_inpic->p[Y_PLANE].i_pitch;
+ int i_src_visible = p_inpic->p[Y_PLANE].i_visible_pitch;
+ int i_num_lines = p_inpic->p[Y_PLANE].i_visible_lines;
+
+ int x,y;
+ for( y = 2; y < i_num_lines - 2; y++ )
+ {
+ for( x = 2; x < i_src_visible - 2; x++ )
+ {
+ p_smooth[y*i_src_visible+x] = (uint32_t)(
+ /* 2 rows up */
+ ( p_inpix[(y-2)*i_src_pitch+x-2]<<1 )
+ + ( p_inpix[(y-2)*i_src_pitch+x-1]<<2 )
+ + ( p_inpix[(y-2)*i_src_pitch+x]<<2 )
+ + ( p_inpix[(y-2)*i_src_pitch+x+1]<<2 )
+ + ( p_inpix[(y-2)*i_src_pitch+x+2]<<1 )
+ /* 1 row up */
+ + ( p_inpix[(y-1)*i_src_pitch+x-2]<<2 )
+ + ( p_inpix[(y-1)*i_src_pitch+x-1]<<3 )
+ + ( p_inpix[(y-1)*i_src_pitch+x]*12 )
+ + ( p_inpix[(y-1)*i_src_pitch+x+1]<<3 )
+ + ( p_inpix[(y-1)*i_src_pitch+x+2]<<2 )
+ /* */
+ + ( p_inpix[y*i_src_pitch+x-2]<<2 )
+ + ( p_inpix[y*i_src_pitch+x-1]*12 )
+ + ( p_inpix[y*i_src_pitch+x]<<4 )
+ + ( p_inpix[y*i_src_pitch+x+1]*12 )
+ + ( p_inpix[y*i_src_pitch+x+2]<<2 )
+ /* 1 row down */
+ + ( p_inpix[(y+1)*i_src_pitch+x-2]<<2 )
+ + ( p_inpix[(y+1)*i_src_pitch+x-1]<<3 )
+ + ( p_inpix[(y+1)*i_src_pitch+x]*12 )
+ + ( p_inpix[(y+1)*i_src_pitch+x+1]<<3 )
+ + ( p_inpix[(y+1)*i_src_pitch+x+2]<<2 )
+ /* 2 rows down */
+ + ( p_inpix[(y+2)*i_src_pitch+x-2]<<1 )
+ + ( p_inpix[(y+2)*i_src_pitch+x-1]<<2 )
+ + ( p_inpix[(y+2)*i_src_pitch+x]<<2 )
+ + ( p_inpix[(y+2)*i_src_pitch+x+1]<<2 )
+ + ( p_inpix[(y+2)*i_src_pitch+x+2]<<1 )
+ ) >> 7 /* 115 */;
+ }
+ }
+}
+
+/*****************************************************************************
+ * DistortGradient: Sobel
+ *****************************************************************************/
+static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
+ picture_t *p_outpic )
+{
+ int x, y;
+ int i_src_pitch = p_inpic->p[Y_PLANE].i_pitch;
+ int i_src_visible = p_inpic->p[Y_PLANE].i_visible_pitch;
+ int i_dst_pitch = p_outpic->p[Y_PLANE].i_pitch;
+ int i_num_lines = p_inpic->p[Y_PLANE].i_visible_lines;
+
+ uint8_t *p_inpix = p_inpic->p[Y_PLANE].p_pixels;
+ uint8_t *p_outpix = p_outpic->p[Y_PLANE].p_pixels;
+
+ uint32_t *p_smooth = (uint32_t *)malloc( i_num_lines * i_src_visible * sizeof(uint32_t));
+
+ if( !p_smooth ) return;
+
+ if( p_vout->p_sys->b_cartoon )
+ {
+ p_vout->p_vlc->pf_memcpy( p_outpic->p[U_PLANE].p_pixels,
+ p_inpic->p[U_PLANE].p_pixels,
+ p_outpic->p[U_PLANE].i_lines * p_outpic->p[U_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memcpy( p_outpic->p[V_PLANE].p_pixels,
+ p_inpic->p[V_PLANE].p_pixels,
+ p_outpic->p[V_PLANE].i_lines * p_outpic->p[V_PLANE].i_pitch );
+ }
+ else
+ {
+ p_vout->p_vlc->pf_memset( p_outpic->p[U_PLANE].p_pixels, 0x80,
+ p_outpic->p[U_PLANE].i_lines * p_outpic->p[U_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memset( p_outpic->p[V_PLANE].p_pixels, 0x80,
+ p_outpic->p[V_PLANE].i_lines * p_outpic->p[V_PLANE].i_pitch );
+ }
+
+ GaussianConvolution( p_inpic, p_smooth );
+
+ /* Sobel gradient
+
+ | -1 0 1 | | 1 2 1 |
+ | -2 0 2 | and | 0 0 0 |
+ | -1 0 1 | | -1 -2 -1 | */
+
+ for( y = 1; y < i_num_lines - 1; y++ )
+ {
+ for( x = 1; x < i_src_visible - 1; x++ )
+ {
+ uint32_t a =
+ (
+ abs(
+ ( ( p_smooth[(y-1)*i_src_visible+x]
+ - p_smooth[(y+1)*i_src_visible+x] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x-1] )
+ + ( p_smooth[(y-1)*i_src_visible+x+1]
+ - p_smooth[(y+1)*i_src_visible+x+1] )
+ )
+ +
+ abs(
+ ( ( p_smooth[y*i_src_visible+x-1]
+ - p_smooth[y*i_src_visible+x+1] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y-1)*i_src_visible+x+1] )
+ + ( p_smooth[(y+1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x+1] )
+ )
+ );
+ if( p_vout->p_sys->i_gradient_type )
+ {
+ if( p_vout->p_sys->b_cartoon )
+ {
+ if( a > 60 )
+ {
+ p_outpix[y*i_dst_pitch+x] = 0x00;
+ }
+ else
+ {
+ if( p_smooth[y*i_src_visible+x] > 0xa0 )
+ p_outpix[y*i_dst_pitch+x] =
+ 0xff - ((0xff - p_inpix[y*i_src_pitch+x] )>>2);
+ else if( p_smooth[y*i_src_visible+x] > 0x70 )
+ p_outpix[y*i_dst_pitch+x] =
+ 0xa0 - ((0xa0 - p_inpix[y*i_src_pitch+x] )>>2);
+ else if( p_smooth[y*i_src_visible+x] > 0x28 )
+ p_outpix[y*i_dst_pitch+x] =
+ 0x70 - ((0x70 - p_inpix[y*i_src_pitch+x] )>>2);
+ else
+ p_outpix[y*i_dst_pitch+x] =
+ 0x28 - ((0x28 - p_inpix[y*i_src_pitch+x] )>>2);
+ }
+ }
+ else
+ {
+ if( a>>8 )
+ p_outpix[y*i_dst_pitch+x] = 255;
+ else
+ p_outpix[y*i_dst_pitch+x] = (uint8_t)a;
+ }
+ }
+ else
+ {
+ if( a>>8 )
+ p_outpix[y*i_dst_pitch+x] = 0;
+ else
+ p_outpix[y*i_dst_pitch+x] = (uint8_t)(255 - a);
+ }
+ }
+ }
+
+ if( p_smooth ) free( p_smooth );
+}
+
+/*****************************************************************************
+ * DistortEdge: Canny edge detection algorithm
+ *****************************************************************************
+ * http://fourier.eng.hmc.edu/e161/lectures/canny/node1.html
+ * (well ... my implementation isn't really the canny algorithm ... but some
+ * ideas are the same)
+ *****************************************************************************/
+/* angle : | */
+#define THETA_Y 0
+/* angle : - */
+#define THETA_X 1
+/* angle : / */
+#define THETA_P 2
+/* angle : \ */
+#define THETA_M 3
+static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
+ picture_t *p_outpic )
+{
+ int x, y;
+
+ int i_src_pitch = p_inpic->p[Y_PLANE].i_pitch;
+ int i_src_visible = p_inpic->p[Y_PLANE].i_visible_pitch;
+ int i_dst_pitch = p_outpic->p[Y_PLANE].i_pitch;
+ int i_num_lines = p_inpic->p[Y_PLANE].i_visible_lines;
+
+ uint8_t *p_inpix = p_inpic->p[Y_PLANE].p_pixels;
+ uint8_t *p_outpix = p_outpic->p[Y_PLANE].p_pixels;
+
+ uint32_t *p_smooth = malloc( i_num_lines*i_src_visible * sizeof(uint32_t) );
+ uint32_t *p_grad = malloc( i_num_lines*i_src_visible *sizeof(uint32_t) );
+ uint8_t *p_theta = malloc( i_num_lines*i_src_visible *sizeof(uint8_t) );
+
+ if( !p_smooth || !p_grad || !p_theta ) return;
+
+ if( p_vout->p_sys->b_cartoon )
+ {
+ p_vout->p_vlc->pf_memcpy( p_outpic->p[U_PLANE].p_pixels,
+ p_inpic->p[U_PLANE].p_pixels,
+ p_outpic->p[U_PLANE].i_lines * p_outpic->p[U_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memcpy( p_outpic->p[V_PLANE].p_pixels,
+ p_inpic->p[V_PLANE].p_pixels,
+ p_outpic->p[V_PLANE].i_lines * p_outpic->p[V_PLANE].i_pitch );
+ }
+ else
+ {
+ p_vout->p_vlc->pf_memset( p_outpic->p[Y_PLANE].p_pixels, 0xff,
+ p_outpic->p[Y_PLANE].i_lines * p_outpic->p[Y_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memset( p_outpic->p[U_PLANE].p_pixels, 0x80,
+ p_outpic->p[U_PLANE].i_lines * p_outpic->p[U_PLANE].i_pitch );
+ memset( p_outpic->p[V_PLANE].p_pixels, 0x80,
+ p_outpic->p[V_PLANE].i_lines * p_outpic->p[V_PLANE].i_pitch );
+ }
+
+ GaussianConvolution( p_inpic, p_smooth );
+
+ /* Sobel gradient
+
+ | -1 0 1 | | 1 2 1 |
+ | -2 0 2 | and | 0 0 0 |
+ | -1 0 1 | | -1 -2 -1 | */
+
+ for( y = 1; y < i_num_lines - 1; y++ )
+ {
+ for( x = 1; x < i_src_visible - 1; x++ )
+ {
+
+ int gradx =
+ ( ( p_smooth[(y-1)*i_src_visible+x]
+ - p_smooth[(y+1)*i_src_visible+x] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x-1] )
+ + ( p_smooth[(y-1)*i_src_visible+x+1]
+ - p_smooth[(y+1)*i_src_visible+x+1] );
+ int grady =
+ ( ( p_smooth[y*i_src_visible+x-1]
+ - p_smooth[y*i_src_visible+x+1] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y-1)*i_src_visible+x+1] )
+ + ( p_smooth[(y+1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x+1] );
+
+ p_grad[y*i_src_visible+x] = (uint32_t)(abs( gradx ) + abs( grady ));
+
+ /* tan( 22.5 ) = 0,414213562 .. * 128 = 53
+ * tan( 26,565051177 ) = 0.5
+ * tan( 45 + 22.5 ) = 2,414213562 .. * 128 = 309
+ * tan( 63,434948823 ) 2 */
+ if( (grady<<1) > gradx )
+ p_theta[y*i_src_visible+x] = THETA_P;
+ else if( (grady<<1) < -gradx )
+ p_theta[y*i_src_visible+x] = THETA_M;
+ else if( !gradx || abs(grady) > abs(gradx)<<1 )
+ p_theta[y*i_src_visible+x] = THETA_Y;
+ else
+ p_theta[y*i_src_visible+x] = THETA_X;
+ }
+ }
+
+ /* edge computing */
+ for( y = 1; y < i_num_lines - 1; y++ )
+ {
+ for( x = 1; x < i_src_visible - 1; x++ )
+ {
+ if( p_grad[y*i_src_visible+x] > 40 )
+ {
+ switch( p_theta[y*i_src_visible+x] )
+ {
+ case THETA_Y:
+ if( p_grad[y*i_src_visible+x] > p_grad[(y-1)*i_src_visible+x]
+ && p_grad[y*i_src_visible+x] > p_grad[(y+1)*i_src_visible+x] )
+ {
+ p_outpix[y*i_dst_pitch+x] = 0;
+ } else goto colorize;
+ break;
+ case THETA_P:
+ if( p_grad[y*i_src_visible+x] > p_grad[(y-1)*i_src_visible+x-1]
+ && p_grad[y*i_src_visible+x] > p_grad[(y+1)*i_src_visible+x+1] )
+ {
+ p_outpix[y*i_dst_pitch+x] = 0;
+ } else goto colorize;
+ break;
+ case THETA_M:
+ if( p_grad[y*i_src_visible+x] > p_grad[(y-1)*i_src_visible+x+1]
+ && p_grad[y*i_src_visible+x] > p_grad[(y+1)*i_src_visible+x-1] )
+ {
+ p_outpix[y*i_dst_pitch+x] = 0;
+ } else goto colorize;
+ break;
+ case THETA_X:
+ if( p_grad[y*i_src_visible+x] > p_grad[y*i_src_visible+x-1]
+ && p_grad[y*i_src_visible+x] > p_grad[y*i_src_visible+x+1] )
+ {
+ p_outpix[y*i_dst_pitch+x] = 0;
+ } else goto colorize;
+ break;
+ }
+ }
+ else
+ {
+ colorize:
+ if( p_vout->p_sys->b_cartoon )
+ {
+ if( p_smooth[y*i_src_visible+x] > 0xa0 )
+ p_outpix[y*i_dst_pitch+x] = (uint8_t)
+ 0xff - ((0xff - p_inpix[y*i_src_pitch+x] )>>2);
+ else if( p_smooth[y*i_src_visible+x] > 0x70 )
+ p_outpix[y*i_dst_pitch+x] =(uint8_t)
+ 0xa0 - ((0xa0 - p_inpix[y*i_src_pitch+x] )>>2);
+ else if( p_smooth[y*i_src_visible+x] > 0x28 )
+ p_outpix[y*i_dst_pitch+x] =(uint8_t)
+ 0x70 - ((0x70 - p_inpix[y*i_src_pitch+x] )>>2);
+ else
+ p_outpix[y*i_dst_pitch+x] =(uint8_t)
+ 0x28 - ((0x28 - p_inpix[y*i_src_pitch+x] )>>2);
+ }
+ }
+ }
+ }
+ if( p_smooth ) free( p_smooth );
+ if( p_grad ) free( p_grad );
+ if( p_theta) free( p_theta );
+}
+
+/*****************************************************************************
+ * DistortHough
+ *****************************************************************************/
+#define p_pre_hough p_vout->p_sys->p_pre_hough
+static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
+ picture_t *p_outpic )
+{
+ int x, y, i;
+ int i_src_visible = p_inpic->p[Y_PLANE].i_visible_pitch;
+ int i_dst_pitch = p_outpic->p[Y_PLANE].i_pitch;
+ int i_num_lines = p_inpic->p[Y_PLANE].i_visible_lines;
+
+ uint8_t *p_outpix = p_outpic->p[Y_PLANE].p_pixels;
+
+ int i_diag = sqrt( i_num_lines * i_num_lines +
+ i_src_visible * i_src_visible);
+ int i_max, i_phi_max, i_rho, i_rho_max;
+ int i_nb_steps = 90;
+ double d_step = M_PI / i_nb_steps;
+ double d_sin;
+ double d_cos;
+ uint32_t *p_smooth;
+ int *p_hough = malloc( i_diag * i_nb_steps * sizeof(int) );
+ if( ! p_hough ) return;
+ p_smooth = (uint32_t *)malloc( i_num_lines*i_src_visible*sizeof(uint32_t));
+ if( !p_smooth ) return;
+
+ if( ! p_pre_hough )
+ {
+ msg_Dbg(p_vout, "Starting precalculation");
+ p_pre_hough = malloc( i_num_lines*i_src_visible*i_nb_steps*sizeof(int));
+ if( ! p_pre_hough ) return;
+ for( i = 0 ; i < i_nb_steps ; i++)
+ {
+ d_sin = sin(d_step * i);
+ d_cos = cos(d_step * i);
+ for( y = 0 ; y < i_num_lines ; y++ )
+ for( x = 0 ; x < i_src_visible ; x++ )
+ {
+ p_pre_hough[(i*i_num_lines+y)*i_src_visible + x] =
+ ceil(x*d_sin + y*d_cos);
+ }
+ }
+ msg_Dbg(p_vout, "Precalculation done");
+ }
+
+ memset( p_hough, 0, i_diag * i_nb_steps * sizeof(int) );
+
+ p_vout->p_vlc->pf_memcpy(
+ p_outpic->p[Y_PLANE].p_pixels, p_inpic->p[Y_PLANE].p_pixels,
+ p_outpic->p[Y_PLANE].i_lines * p_outpic->p[Y_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memcpy(
+ p_outpic->p[U_PLANE].p_pixels, p_inpic->p[U_PLANE].p_pixels,
+ p_outpic->p[U_PLANE].i_lines * p_outpic->p[U_PLANE].i_pitch );
+ p_vout->p_vlc->pf_memcpy(
+ p_outpic->p[V_PLANE].p_pixels, p_inpic->p[V_PLANE].p_pixels,
+ p_outpic->p[V_PLANE].i_lines * p_outpic->p[V_PLANE].i_pitch );
+
+ GaussianConvolution( p_inpic, p_smooth );
+
+ /* Sobel gradient
+
+ | -1 0 1 | | 1 2 1 |
+ | -2 0 2 | and | 0 0 0 |
+ | -1 0 1 | | -1 -2 -1 | */
+
+ i_max = 0;
+ i_rho_max = 0;
+ i_phi_max = 0;
+ for( y = 4; y < i_num_lines - 4; y++ )
+ {
+ for( x = 4; x < i_src_visible - 4; x++ )
+ {
+ uint32_t a =
+ (
+ abs(
+ ( ( p_smooth[(y-1)*i_src_visible+x]
+ - p_smooth[(y+1)*i_src_visible+x] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x-1] )
+ + ( p_smooth[(y-1)*i_src_visible+x+1]
+ - p_smooth[(y+1)*i_src_visible+x+1] )
+ )
+ +
+ abs(
+ ( ( p_smooth[y*i_src_visible+x-1]
+ - p_smooth[y*i_src_visible+x+1] ) <<1 )
+ + ( p_smooth[(y-1)*i_src_visible+x-1]
+ - p_smooth[(y-1)*i_src_visible+x+1] )
+ + ( p_smooth[(y+1)*i_src_visible+x-1]
+ - p_smooth[(y+1)*i_src_visible+x+1] )
+ )
+ );
+ if( a>>8 )
+ {
+ for( i = 0 ; i < i_nb_steps ; i ++ )
+ {
+ i_rho = p_pre_hough[(i*i_num_lines+y)*i_src_visible + x];
+ if( p_hough[i_rho + i_diag/2 + i * i_diag]++ > i_max )
+ {
+ i_max = p_hough[i_rho + i_diag/2 + i * i_diag];
+ i_rho_max = i_rho;
+ i_phi_max = i;
+ }
+ }
+ }
+ }
+ }
+
+ d_sin = sin(i_phi_max*d_step);
+ d_cos = cos(i_phi_max*d_step);
+ if( d_cos != 0 )
+ {
+ for( x = 0 ; x < i_src_visible ; x++ )
+ {
+ y = (i_rho_max - x * d_sin) / d_cos;
+ if( y >= 0 && y < i_num_lines )
+ p_outpix[y*i_dst_pitch+x] = 255;
+ }
+ }
+
+ if( p_hough ) free( p_hough );
+ if( p_smooth ) free( p_smooth );
+}
+#undef p_pre_hough
+
+/*****************************************************************************
+ * DistortPsychedelic
+ *****************************************************************************/
+static void DistortPsychedelic( vout_thread_t *p_vout, picture_t *p_inpic,
+ picture_t *p_outpic )
+{
+ unsigned int w, h;
+ int x,y;
+ uint8_t u,v;
+
+ video_format_t fmt_out = {0};
+ picture_t *p_converted;
+
+ if( !p_vout->p_sys->p_image )
+ p_vout->p_sys->p_image = image_HandlerCreate( p_vout );
+
+ /* chrominance */
+ u = p_vout->p_sys->u;
+ v = p_vout->p_sys->v;
+ for( y = 0; y<p_outpic->p[U_PLANE].i_lines; y++)
+ {
+ memset( p_outpic->p[U_PLANE].p_pixels+y*p_outpic->p[U_PLANE].i_pitch,
+ u, p_outpic->p[U_PLANE].i_pitch );
+ memset( p_outpic->p[V_PLANE].p_pixels+y*p_outpic->p[V_PLANE].i_pitch,
+ v, p_outpic->p[V_PLANE].i_pitch );
+ if( v == 0 && u != 0 )
+ u --;
+ else if( u == 0xff )
+ v --;
+ else if( v == 0xff )
+ u ++;
+ else if( u == 0 )
+ v ++;
+ }
+
+ /* luminance */
+ p_vout->p_vlc->pf_memcpy(
+ p_outpic->p[Y_PLANE].p_pixels, p_inpic->p[Y_PLANE].p_pixels,
+ p_outpic->p[Y_PLANE].i_lines * p_outpic->p[Y_PLANE].i_pitch );
+
+
+ /* image visualization */
+ fmt_out = p_vout->fmt_out;
+ fmt_out.i_width = p_vout->render.i_width*p_vout->p_sys->scale/150;
+ fmt_out.i_height = p_vout->render.i_height*p_vout->p_sys->scale/150;
+ p_converted = image_Convert( p_vout->p_sys->p_image, p_inpic,
+ &(p_inpic->format), &fmt_out );
+
+#define copyimage( plane, b ) \
+ for( y=0; y<p_converted->p[plane].i_visible_lines; y++) { \
+ for( x=0; x<p_converted->p[plane].i_visible_pitch; x++) { \
+ int nx, ny; \
+ if( p_vout->p_sys->yinc == 1 ) \
+ ny= y; \
+ else \
+ ny = p_converted->p[plane].i_visible_lines-y; \
+ if( p_vout->p_sys->xinc == 1 ) \
+ nx = x; \
+ else \
+ nx = p_converted->p[plane].i_visible_pitch-x; \
+ p_outpic->p[plane].p_pixels[(p_vout->p_sys->x*b+nx)+(ny+p_vout->p_sys->y*b)*p_outpic->p[plane].i_pitch ] = p_converted->p[plane].p_pixels[y*p_converted->p[plane].i_pitch+x]; \
+ } }
+ copyimage( Y_PLANE, 2 );
+ copyimage( U_PLANE, 1 );
+ copyimage( V_PLANE, 1 );
+#undef copyimage
+
+ p_converted->pf_release( p_converted );
+
+ p_vout->p_sys->x += p_vout->p_sys->xinc;
+ p_vout->p_sys->y += p_vout->p_sys->yinc;
+
+ p_vout->p_sys->scale += p_vout->p_sys->scaleinc;
+ if( p_vout->p_sys->scale >= 50 ) p_vout->p_sys->scaleinc = -1;
+ if( p_vout->p_sys->scale <= 1 ) p_vout->p_sys->scaleinc = 1;
+
+ w = p_vout->render.i_width*p_vout->p_sys->scale/150;
+ h = p_vout->render.i_height*p_vout->p_sys->scale/150;
+ if( p_vout->p_sys->x*2 + w >= p_vout->render.i_width )
+ p_vout->p_sys->xinc = -1;
+ if( p_vout->p_sys->x <= 0 )
+ p_vout->p_sys->xinc = 1;
+
+ if( p_vout->p_sys->x*2 + w >= p_vout->render.i_width )
+ p_vout->p_sys->x = (p_vout->render.i_width-w)/2;
+ if( p_vout->p_sys->y*2 + h >= p_vout->render.i_height )
+ p_vout->p_sys->y = (p_vout->render.i_height-h)/2;
+
+ if( p_vout->p_sys->y*2 + h >= p_vout->render.i_height )
+ p_vout->p_sys->yinc = -1;
+ if( p_vout->p_sys->y <= 0 )
+ p_vout->p_sys->yinc = 1;
+
+ for( y = 0; y< 16; y++ )
+ {
+ if( p_vout->p_sys->v == 0 && p_vout->p_sys->u != 0 )
+ p_vout->p_sys->u -= 1;
+ else if( p_vout->p_sys->u == 0xff )
+ p_vout->p_sys->v -= 1;
+ else if( p_vout->p_sys->v == 0xff )
+ p_vout->p_sys->u += 1;
+ else if( p_vout->p_sys->u == 0 )
+ p_vout->p_sys->v += 1;
+ }
+}
+
+
/*****************************************************************************
* SendEvents: forward mouse and keyboard events to the parent p_vout
*****************************************************************************/
projects / vlc / blobdiff