Skip to content

V
vlc-1.1
Commit 4a9499f0 authored by Antoine Cellerier's avatar Antoine Cellerier
Browse files
Options

distort.c: 

* new psychedelic FOSDEM demo filter. enjoy :)
* misc changes
parent 51059007
Show whitespace changes
Inline Side-by-side
Showing with 271 additions and 192 deletions
modules/video_filter/distort.c
View file @ 4a9499f0
/*****************************************************************************
* distort.c : Misc video effects plugin for vlc
*****************************************************************************
* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 the VideoLAN team
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
......@@ -34,12 +34,9 @@
#include <vlc/vout.h>
#include "filter_common.h"
#include "vlc_image.h"
#define DISTORT_MODE_WAVE 1
#define DISTORT_MODE_RIPPLE 2
#define DISTORT_MODE_GRADIENT 3
#define DISTORT_MODE_EDGE 4
#define DISTORT_MODE_HOUGH 5
enum { WAVE, RIPPLE, GRADIENT, EDGE, HOUGH, PSYCHEDELIC };
/*****************************************************************************
* Local prototypes
......@@ -56,6 +53,7 @@ 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 * );
......@@ -64,7 +62,7 @@ static int SendEvents ( vlc_object_t *, char const *,
* Module descriptor
*****************************************************************************/
#define MODE_TEXT N_("Distort mode")
#define MODE_LONGTEXT N_("Distort mode, one of \"wave\", \"ripple\", \"gradient\" and \"edge\"")
#define MODE_LONGTEXT N_("Distort mode, one of \"wave\", \"ripple\", \"gradient\", \"edge\", \"hough\" and \"psychedelic\"")
#define GRADIENT_TEXT N_("Gradient image type")
#define GRADIENT_LONGTEXT N_("Gradient image type (0 or 1)")
......@@ -72,8 +70,10 @@ static int SendEvents ( vlc_object_t *, char const *,
#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" };
static char *mode_list_text[] = { N_("Wave"), N_("Ripple"), N_("gradient"), N_("Edge"), N_("Hough") };
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();
set_description( _("Distort video filter") );
......@@ -114,6 +114,13 @@ struct vout_sys_t
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;
};
......@@ -151,42 +158,54 @@ static int Create( vlc_object_t *p_this )
p_vout->pf_control = Control;
p_vout->p_sys->i_mode = 0;
p_vout->p_sys->p_pre_hough = NULL;
if( !(psz_method = psz_method_tmp
= config_GetPsz( p_vout, "distort-mode" )) )
{
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;
p_vout->p_sys->i_mode = WAVE;
}
else if( !strcmp( psz_method, "ripple" ) )
{
p_vout->p_sys->i_mode = DISTORT_MODE_RIPPLE;
p_vout->p_sys->i_mode = RIPPLE;
}
else if( !strcmp( psz_method, "gradient" ) )
{
p_vout->p_sys->i_mode = DISTORT_MODE_GRADIENT;
p_vout->p_sys->i_mode = GRADIENT;
}
else if( !strcmp( psz_method, "edge" ) )
{
p_vout->p_sys->i_mode = DISTORT_MODE_EDGE;
p_vout->p_sys->i_mode = EDGE;
}
else if( !strcmp( psz_method, "hough" ) )
{
p_vout->p_sys->i_mode = DISTORT_MODE_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 = DISTORT_MODE_WAVE;
p_vout->p_sys->i_mode = WAVE;
}
}
free( psz_method_tmp );
......@@ -196,8 +215,6 @@ static int Create( vlc_object_t *p_this )
p_vout->p_sys->b_cartoon =
config_GetInt( p_vout, "distort-cartoon" );
p_vout->p_sys->p_pre_hough = NULL;
return VLC_SUCCESS;
}
......@@ -241,6 +258,8 @@ static int Init( vout_thread_t *p_vout )
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;
}
......@@ -280,6 +299,9 @@ static void Destroy( vlc_object_t *p_this )
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 );
}
......@@ -309,25 +331,30 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
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 DISTORT_MODE_EDGE:
case EDGE:
DistortEdge( p_vout, p_pic, p_outpic );
break;
case DISTORT_MODE_GRADIENT:
case GRADIENT:
DistortGradient( p_vout, p_pic, p_outpic );
break;
case DISTORT_MODE_HOUGH:
case HOUGH:
DistortHough( p_vout, p_pic, p_outpic );
break;
case PSYCHEDELIC:
DistortPsychedelic( p_vout, p_pic, p_outpic );
break;
default:
break;
}
......@@ -483,47 +510,24 @@ static void DistortRipple( vout_thread_t *p_vout, picture_t *p_inpic,
}
/*****************************************************************************
* DistortGradient: Sobel
* 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 DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
picture_t *p_outpic )
static void GaussianConvolution( picture_t *p_inpic, uint32_t *p_smooth )
{
int x, y;
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_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 )
{
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 );
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
{
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 );
}
/* 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 | */
int x,y;
for( y = 2; y < i_num_lines - 2; y++ )
{
for( x = 2; x < i_src_visible - 2; x++ )
......@@ -562,6 +566,45 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
) >> 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
......@@ -576,15 +619,21 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
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])
( ( 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])
( ( 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 )
......@@ -660,75 +709,32 @@ static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
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) );
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 )
{
memcpy( p_outpic->p[U_PLANE].p_pixels, p_inpic->p[U_PLANE].p_pixels,
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 );
memcpy( p_outpic->p[V_PLANE].p_pixels, p_inpic->p[V_PLANE].p_pixels,
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
{
memset( p_outpic->p[Y_PLANE].p_pixels, 0xff,
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 );
memset( p_outpic->p[U_PLANE].p_pixels, 0x80,
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 );
}
/* 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 | */
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 */;
}
}
GaussianConvolution( p_inpic, p_smooth );
/* Sobel gradient
......@@ -742,15 +748,22 @@ static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
{
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]);
( ( 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_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 ));
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
......@@ -839,12 +852,10 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
picture_t *p_outpic )
{
int x, y, i;
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;
int i_diag = sqrt( i_num_lines * i_num_lines +
......@@ -857,13 +868,13 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
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));
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) );
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++)
{
......@@ -880,63 +891,18 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
}
memset( p_hough, 0, i_diag * i_nb_steps * sizeof(int) );
// 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 );
memcpy( p_outpic->p[Y_PLANE].p_pixels, p_inpic->p[Y_PLANE].p_pixels,
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 );
memcpy( p_outpic->p[U_PLANE].p_pixels, p_inpic->p[U_PLANE].p_pixels,
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 );
memcpy( p_outpic->p[V_PLANE].p_pixels, p_inpic->p[V_PLANE].p_pixels,
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 );
/* 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 | */
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-1]<<3 )
+ ( p_inpix[(y-1)*i_src_pitch+x-2]<<2 )
+ ( 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 */;
}
}
GaussianConvolution( p_inpic, p_smooth );
/* Sobel gradient
......@@ -954,15 +920,21 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
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])
( ( 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])
( ( 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 )
......@@ -998,6 +970,113 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
}
#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
*****************************************************************************/
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment