videolan
/
vlc
mirror of https://code.videolan.org/videolan/vlc
1
Fork 0
Code Releases Activity

Split the distort video filter module into several video filter2 modules.

This commit is contained in:
Antoine Cellerier 2006-07-14 22:58:41 +00:00
parent f5141f9f33
commit 7588d6a1de
6 changed files with 781 additions and 510 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
configure.ac
View File

@ -564,7 +564,7 @@ AM_CONDITIONAL(BUILD_GETOPT, ${need_getopt})
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
AC_TYPE_SIGNAL
AC_CHECK_LIB(m,cos,[
VLC_ADD_LDFLAGS([adjust distort a52tofloat32 dtstofloat32 x264 goom visual],[-lm])
VLC_ADD_LDFLAGS([adjust wave ripple psychedelic gradient a52tofloat32 dtstofloat32 x264 goom visual],[-lm])
])
AC_CHECK_LIB(m,pow,[
VLC_ADD_LDFLAGS([ffmpeg ffmpegaltivec stream_out_transrate i420_rgb faad twolame equalizer param_eq vlc freetype mpc dmo quicktime realaudio galaktos],[-lm])
@ -1122,7 +1122,7 @@ dnl
VLC_ADD_PLUGINS([dummy logger memcpy])
VLC_ADD_PLUGINS([mpgv mpga m4v m4a h264 ps pva avi asf mp4 rawdv nsv real aiff mjpeg demuxdump flac])
VLC_ADD_PLUGINS([cvdsub svcdsub spudec subsdec dvbsub mpeg_audio lpcm a52 dts cinepak flacdec])
VLC_ADD_PLUGINS([deinterlace invert adjust transform distort motionblur rv32])
VLC_ADD_PLUGINS([deinterlace invert adjust transform wave ripple psychedelic gradient motionblur rv32])
VLC_ADD_PLUGINS([fixed32tos16 s16tofixed32 u8tofixed32])
VLC_ADD_PLUGINS([trivial_resampler ugly_resampler])
VLC_ADD_PLUGINS([trivial_channel_mixer trivial_mixer])

5
modules/video_filter/Modules.am
View File

@ -2,7 +2,6 @@ SOURCES_mosaic = mosaic.c mosaic.h
SOURCES_transform = transform.c
SOURCES_invert = invert.c
SOURCES_adjust = adjust.c
SOURCES_distort = distort.c
SOURCES_wall = wall.c
SOURCES_clone = clone.c
SOURCES_crop = crop.c
@ -18,4 +17,8 @@ SOURCES_motiondetect = motiondetect.c
SOURCES_rv32 = rv32.c
SOURCES_osdmenu = osdmenu.c
SOURCES_magnify = magnify.c
SOURCES_wave = wave.c
SOURCES_ripple = ripple.c
SOURCES_psychedelic = psychedelic.c
SOURCES_gradient = gradient.c
noinst_HEADERS = filter_common.h

621
modules/video_filter/distort.c → modules/video_filter/gradient.c
View File

@ -1,5 +1,5 @@
/*****************************************************************************
* distort.c : Misc video effects plugin for vlc
* gradient.c : Gradient and edge detection video effects plugin for vlc
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
@ -31,12 +31,12 @@
#include <math.h> /* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/sout.h>
#include <vlc/decoder.h>
#include "filter_common.h"
#include "vlc_image.h"
#include "vlc_filter.h"
enum { WAVE, RIPPLE, GRADIENT, EDGE, HOUGH, PSYCHEDELIC };
enum { GRADIENT, EDGE, HOUGH };
/*****************************************************************************
* Local prototypes
@ -44,25 +44,17 @@ enum { WAVE, RIPPLE, GRADIENT, EDGE, HOUGH, PSYCHEDELIC };
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static int Init ( vout_thread_t * );
static void End ( vout_thread_t * );
static void Render ( vout_thread_t *, picture_t * );
static picture_t *Filter( filter_t *, picture_t * );
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 * );
static void FilterGradient( filter_t *, picture_t *, picture_t * );
static void FilterEdge ( filter_t *, picture_t *, picture_t * );
static void FilterHough ( filter_t *, picture_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define MODE_TEXT N_("Distort mode")
#define MODE_LONGTEXT N_("Distort mode, one of \"wave\", \"ripple\", \"gradient\", \"edge\", \"hough\" and \"psychedelic\".")
#define MODE_LONGTEXT N_("Distort mode, one of \"gradient\", \"edge\" and \"hough\".")
#define GRADIENT_TEXT N_("Gradient image type")
#define GRADIENT_LONGTEXT N_("Gradient image type (0 or 1). 0 will " \
@ -72,68 +64,53 @@ static int SendEvents ( vlc_object_t *, char const *,
#define CARTOON_LONGTEXT N_("Apply cartoon effect. It is only 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") };
static char *mode_list[] = { "gradient", "edge", "hough" };
static char *mode_list_text[] = { N_("Gradient"), N_("Edge"), N_("Hough") };
#define FILTER_PREFIX "gradient-"
vlc_module_begin();
set_description( _("Distort video filter") );
set_shortname( N_( "Distortion" ));
set_capability( "video filter", 0 );
set_description( _("Gradient video filter") );
set_shortname( N_( "Gradient" ));
set_capability( "video filter2", 0 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER );
set_subcategory( SUBCAT_VIDEO_VFILTER2 );
add_string( "distort-mode", "wave", NULL, MODE_TEXT, MODE_LONGTEXT,
VLC_FALSE );
add_string( FILTER_PREFIX "mode", "gradient", 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,
add_integer_with_range( FILTER_PREFIX "type", 0, 0, 1, NULL,
GRADIENT_TEXT, GRADIENT_LONGTEXT, VLC_FALSE );
add_bool( "distort-cartoon", 1, NULL,
add_bool( FILTER_PREFIX "cartoon", 1, NULL,
CARTOON_TEXT, CARTOON_LONGTEXT, VLC_FALSE );
add_shortcut( "distort" );
add_shortcut( "gradient" );
set_callbacks( Create, Destroy );
vlc_module_end();
static const char *ppsz_filter_options[] = {
"mode", "type", "cartoon", NULL
};
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct vout_sys_t
struct filter_sys_t
{
int i_mode;
vout_thread_t *p_vout;
/* 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
*****************************************************************************
@ -141,144 +118,67 @@ static int Control( vout_thread_t *p_vout, int i_query, va_list args )
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
char *psz_method, *psz_method_tmp;
filter_t *p_filter = (filter_t *)p_this;
char *psz_method;
/* Allocate structure */
p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
if( p_vout->p_sys == NULL )
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
msg_Err( p_vout, "out of memory" );
msg_Err( p_filter, "out of memory" );
return VLC_ENOMEM;
}
p_vout->pf_init = Init;
p_vout->pf_end = End;
p_vout->pf_manage = NULL;
p_vout->pf_render = Render;
p_vout->pf_display = NULL;
p_vout->pf_control = Control;
p_filter->pf_video_filter = Filter;
p_vout->p_sys->i_mode = 0;
p_vout->p_sys->p_pre_hough = NULL;
p_filter->p_sys->p_pre_hough = NULL;
if( !(psz_method = psz_method_tmp
= config_GetPsz( p_vout, "distort-mode" )) )
sout_CfgParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
p_filter->p_cfg );
var_Create( p_filter, FILTER_PREFIX "mode",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Create( p_filter, FILTER_PREFIX "type",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Create( p_filter, FILTER_PREFIX "cartoon",
VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
if( !(psz_method = var_GetString( p_filter, FILTER_PREFIX "mode" )) )
{
msg_Err( p_vout, "configuration variable %s empty, using 'wave'",
"distort-mode" );
p_vout->p_sys->i_mode = WAVE;
msg_Err( p_filter, "configuration variable "
FILTER_PREFIX "mode empty" );
p_filter->p_sys->i_mode = GRADIENT;
}
else
{
if( !strcmp( psz_method, "wave" ) )
if( !strcmp( psz_method, "gradient" ) )
{
p_vout->p_sys->i_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;
p_filter->p_sys->i_mode = GRADIENT;
}
else if( !strcmp( psz_method, "edge" ) )
{
p_vout->p_sys->i_mode = EDGE;
p_filter->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;
p_filter->p_sys->i_mode = HOUGH;
}
else
{
msg_Err( p_vout, "no valid distort mode provided, using wave" );
p_vout->p_sys->i_mode = WAVE;
msg_Err( p_filter, "no valid gradient mode provided" );
p_filter->p_sys->i_mode = GRADIENT;
}
}
free( psz_method_tmp );
free( psz_method );
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" );
p_filter->p_sys->i_gradient_type =
var_GetInteger( p_filter, FILTER_PREFIX "type" );
p_filter->p_sys->b_cartoon =
var_GetInteger( p_filter, FILTER_PREFIX "cartoon" );
return VLC_SUCCESS;
}
/*****************************************************************************
* Init: initialize Distort video thread output method
*****************************************************************************/
static int Init( vout_thread_t *p_vout )
{
int i_index;
picture_t *p_pic;
video_format_t fmt = {0};
I_OUTPUTPICTURES = 0;
/* Initialize the output structure */
p_vout->output.i_chroma = p_vout->render.i_chroma;
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, &fmt );
/* Everything failed */
if( p_vout->p_sys->p_vout == NULL )
{
msg_Err( p_vout, "cannot open vout, aborting" );
return VLC_EGENERIC;
}
ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
ADD_PARENT_CALLBACKS( SendEventsToChild );
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;
}
/*****************************************************************************
* End: terminate Distort video thread output method
*****************************************************************************/
static void End( vout_thread_t *p_vout )
{
int i_index;
/* Free the fake output buffers we allocated */
for( i_index = I_OUTPUTPICTURES ; i_index ; )
{
i_index--;
free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
}
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
@ -286,24 +186,12 @@ static void End( vout_thread_t *p_vout )
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
filter_t *p_filter = (filter_t *)p_this;
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 );
}
if(p_filter->p_sys->p_pre_hough)
free(p_filter->p_sys->p_pre_hough);
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 );
free( p_filter->p_sys );
}
/*****************************************************************************
@ -313,202 +201,50 @@ static void Destroy( vlc_object_t *p_this )
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static void Render( vout_thread_t *p_vout, picture_t *p_pic )
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_outpic;
/* This is a new frame. Get a structure from the video_output. */
while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
== NULL )
if( !p_pic ) return NULL;
p_outpic = p_filter->pf_vout_buffer_new( p_filter );
if( !p_outpic )
{
if( p_vout->b_die || p_vout->b_error )
{
return;
}
msleep( VOUT_OUTMEM_SLEEP );
msg_Warn( p_filter, "can't get output picture" );
if( p_pic->pf_release )
p_pic->pf_release( p_pic );
return NULL;
}
vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
switch( p_vout->p_sys->i_mode )
switch( p_filter->p_sys->i_mode )
{
case WAVE:
DistortWave( p_vout, p_pic, p_outpic );
break;
case RIPPLE:
DistortRipple( p_vout, p_pic, p_outpic );
break;
case EDGE:
DistortEdge( p_vout, p_pic, p_outpic );
FilterEdge( p_filter, p_pic, p_outpic );
break;
case GRADIENT:
DistortGradient( p_vout, p_pic, p_outpic );
FilterGradient( p_filter, p_pic, p_outpic );
break;
case HOUGH:
DistortHough( p_vout, p_pic, p_outpic );
break;
case PSYCHEDELIC:
DistortPsychedelic( p_vout, p_pic, p_outpic );
FilterHough( p_filter, p_pic, p_outpic );
break;
default:
break;
}
vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
p_outpic->date = p_pic->date;
p_outpic->b_force = p_pic->b_force;
p_outpic->i_nb_fields = p_pic->i_nb_fields;
p_outpic->b_progressive = p_pic->b_progressive;
p_outpic->b_top_field_first = p_pic->b_top_field_first;
p_pic->pf_release( p_pic );
return p_outpic;
}
/*****************************************************************************
* DistortWave: draw a wave effect on the picture
*****************************************************************************/
static void DistortWave( vout_thread_t *p_vout, picture_t *p_inpic,
picture_t *p_outpic )
{
int i_index;
double f_angle;
mtime_t new_date = mdate();
p_vout->p_sys->f_angle += (new_date - p_vout->p_sys->last_date) / 200000.0;
p_vout->p_sys->last_date = new_date;
f_angle = p_vout->p_sys->f_angle;
for( i_index = 0 ; i_index < p_inpic->i_planes ; i_index++ )
{
int i_line, i_num_lines, i_offset;
uint8_t black_pixel;
uint8_t *p_in, *p_out;
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_visible_lines;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for( i_line = 0 ; i_line < i_num_lines ; i_line++ )
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset = (int)( (double)(p_inpic->p[i_index].i_visible_pitch)
* sin( f_angle + 10.0 * (double)i_line
/ (double)i_num_lines )
/ 20.0 );
if( i_offset )
{
if( i_offset < 0 )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in - i_offset,
p_inpic->p[i_index].i_visible_pitch + i_offset );
p_in += p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
memset( p_out + i_offset, black_pixel, -i_offset );
}
else
{
p_vout->p_vlc->pf_memcpy( p_out + i_offset, p_in,
p_inpic->p[i_index].i_visible_pitch - i_offset );
memset( p_out, black_pixel, i_offset );
p_in += p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
else
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_inpic->p[i_index].i_visible_pitch );
p_in += p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
}
}
/*****************************************************************************
* DistortRipple: draw a ripple effect at the bottom of the picture
*****************************************************************************/
static void DistortRipple( vout_thread_t *p_vout, picture_t *p_inpic,
picture_t *p_outpic )
{
int i_index;
double f_angle;
mtime_t new_date = mdate();
p_vout->p_sys->f_angle -= (p_vout->p_sys->last_date - new_date) / 100000.0;
p_vout->p_sys->last_date = new_date;
f_angle = p_vout->p_sys->f_angle;
for( i_index = 0 ; i_index < p_inpic->i_planes ; i_index++ )
{
int i_line, i_first_line, i_num_lines, i_offset;
uint8_t black_pixel;
uint8_t *p_in, *p_out;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
i_num_lines = p_inpic->p[i_index].i_visible_lines;
i_first_line = i_num_lines * 4 / 5;
p_in = p_inpic->p[i_index].p_pixels;
p_out = p_outpic->p[i_index].p_pixels;
for( i_line = 0 ; i_line < i_first_line ; i_line++ )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_inpic->p[i_index].i_visible_pitch );
p_in += p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for( i_line = i_first_line ; i_line < i_num_lines ; i_line++ )
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset = (int)( (double)(p_inpic->p[i_index].i_pitch)
* sin( f_angle + 2.0 * (double)i_line
/ (double)( 1 + i_line
- i_first_line) )
* (double)(i_line - i_first_line)
/ (double)i_num_lines
/ 8.0 );
if( i_offset )
{
if( i_offset < 0 )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in - i_offset,
p_inpic->p[i_index].i_visible_pitch + i_offset );
p_in -= p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
memset( p_out + i_offset, black_pixel, -i_offset );
}
else
{
p_vout->p_vlc->pf_memcpy( p_out + i_offset, p_in,
p_inpic->p[i_index].i_visible_pitch - i_offset );
memset( p_out, black_pixel, i_offset );
p_in -= p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
else
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_inpic->p[i_index].i_visible_pitch );
p_in -= p_inpic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
}
}
/*****************************************************************************
* Gaussian Convolution
@ -570,10 +306,10 @@ static void GaussianConvolution( picture_t *p_inpic, uint32_t *p_smooth )
}
/*****************************************************************************
* DistortGradient: Sobel
* FilterGradient: Sobel
*****************************************************************************/
static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
picture_t *p_outpic )
static void FilterGradient( filter_t *p_filter, picture_t *p_inpic,
picture_t *p_outpic )
{
int x, y;
int i_src_pitch = p_inpic->p[Y_PLANE].i_pitch;
@ -588,20 +324,20 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
if( !p_smooth ) return;
if( p_vout->p_sys->b_cartoon )
if( p_filter->p_sys->b_cartoon )
{
p_vout->p_vlc->pf_memcpy( p_outpic->p[U_PLANE].p_pixels,
p_filter->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_filter->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_filter->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_filter->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 );
}
@ -637,9 +373,9 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
- p_smooth[(y+1)*i_src_visible+x+1] )
)
);
if( p_vout->p_sys->i_gradient_type )
if( p_filter->p_sys->i_gradient_type )
{
if( p_vout->p_sys->b_cartoon )
if( p_filter->p_sys->b_cartoon )
{
if( a > 60 )
{
@ -683,7 +419,7 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
}
/*****************************************************************************
* DistortEdge: Canny edge detection algorithm
* FilterEdge: 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
@ -697,8 +433,8 @@ static void DistortGradient( vout_thread_t *p_vout, picture_t *p_inpic,
#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 )
static void FilterEdge( filter_t *p_filter, picture_t *p_inpic,
picture_t *p_outpic )
{
int x, y;
@ -716,20 +452,20 @@ static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
if( !p_smooth || !p_grad || !p_theta ) return;
if( p_vout->p_sys->b_cartoon )
if( p_filter->p_sys->b_cartoon )
{
p_vout->p_vlc->pf_memcpy( p_outpic->p[U_PLANE].p_pixels,
p_filter->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_filter->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_filter->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_filter->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 );
@ -822,7 +558,7 @@ static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
else
{
colorize:
if( p_vout->p_sys->b_cartoon )
if( p_filter->p_sys->b_cartoon )
{
if( p_smooth[y*i_src_visible+x] > 0xa0 )
p_outpix[y*i_dst_pitch+x] = (uint8_t)
@ -846,11 +582,11 @@ static void DistortEdge( vout_thread_t *p_vout, picture_t *p_inpic,
}
/*****************************************************************************
* DistortHough
* FilterHough
*****************************************************************************/
#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 )
#define p_pre_hough p_filter->p_sys->p_pre_hough
static void FilterHough( filter_t *p_filter, picture_t *p_inpic,
picture_t *p_outpic )
{
int x, y, i;
int i_src_visible = p_inpic->p[Y_PLANE].i_visible_pitch;
@ -874,7 +610,7 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
if( ! p_pre_hough )
{
msg_Dbg(p_vout, "Starting precalculation");
msg_Dbg(p_filter, "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++)
@ -888,18 +624,18 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
ceil(x*d_sin + y*d_cos);
}
}
msg_Dbg(p_vout, "Precalculation done");
msg_Dbg(p_filter, "Precalculation done");
}
memset( p_hough, 0, i_diag * i_nb_steps * sizeof(int) );
p_vout->p_vlc->pf_memcpy(
p_filter->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_filter->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_filter->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 );
@ -970,132 +706,3 @@ static void DistortHough( vout_thread_t *p_vout, picture_t *p_inpic,
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
*****************************************************************************/
static int SendEvents( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
var_Set( (vlc_object_t *)p_data, psz_var, newval );
return VLC_SUCCESS;
}
/*****************************************************************************
* SendEventsToChild: forward events to the child/children vout
*****************************************************************************/
static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
var_Set( p_vout->p_sys->p_vout, psz_var, newval );
return VLC_SUCCESS;
}

252
modules/video_filter/psychedelic.c Normal file
View File

@ -0,0 +1,252 @@
/*****************************************************************************
* Psychedelic.c : Psychedelic video effect plugin for vlc
*****************************************************************************
* 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
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <math.h> /* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
#include "vlc_image.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static picture_t *Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("Psychedelic video filter") );
set_shortname( N_( "Psychedelic" ));
set_capability( "video filter2", 0 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER2 );
add_shortcut( "psychedelic" );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct filter_sys_t
{
image_handler_t *p_image;
unsigned int x, y, scale;
int xinc, yinc, scaleinc;
uint8_t u,v;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
/* Allocate structure */
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
msg_Err( p_filter, "out of memory" );
return VLC_ENOMEM;
}
p_filter->pf_video_filter = Filter;
p_filter->p_sys->x = 10;
p_filter->p_sys->y = 10;
p_filter->p_sys->scale = 1;
p_filter->p_sys->xinc = 1;
p_filter->p_sys->yinc = 1;
p_filter->p_sys->scaleinc = 1;
p_filter->p_sys->u = 0;
p_filter->p_sys->v = 0;
p_filter->p_sys->p_image = NULL;
return VLC_SUCCESS;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
if( p_filter->p_sys->p_image )
image_HandlerDelete( p_filter->p_sys->p_image );
free( p_filter->p_sys );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
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_pic ) return NULL;
p_outpic = p_filter->pf_vout_buffer_new( p_filter );
if( !p_outpic )
{
msg_Warn( p_filter, "can't get output picture" );
if( p_pic->pf_release )
p_pic->pf_release( p_pic );
return NULL;
}
if( !p_filter->p_sys->p_image )
p_filter->p_sys->p_image = image_HandlerCreate( p_filter );
/* chrominance */
u = p_filter->p_sys->u;
v = p_filter->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_filter->p_vlc->pf_memcpy(
p_outpic->p[Y_PLANE].p_pixels, p_pic->p[Y_PLANE].p_pixels,
p_outpic->p[Y_PLANE].i_lines * p_outpic->p[Y_PLANE].i_pitch );
/* image visualization */
fmt_out = p_filter->fmt_out.video;
fmt_out.i_width = p_filter->fmt_out.video.i_width*p_filter->p_sys->scale/150;
fmt_out.i_height = p_filter->fmt_out.video.i_height*p_filter->p_sys->scale/150;
p_converted = image_Convert( p_filter->p_sys->p_image, p_pic,
&(p_pic->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_filter->p_sys->yinc == 1 ) \
ny= y; \
else \
ny = p_converted->p[plane].i_visible_lines-y; \
if( p_filter->p_sys->xinc == 1 ) \
nx = x; \
else \
nx = p_converted->p[plane].i_visible_pitch-x; \
p_outpic->p[plane].p_pixels[(p_filter->p_sys->x*b+nx)+(ny+p_filter->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_filter->p_sys->x += p_filter->p_sys->xinc;
p_filter->p_sys->y += p_filter->p_sys->yinc;
p_filter->p_sys->scale += p_filter->p_sys->scaleinc;
if( p_filter->p_sys->scale >= 50 ) p_filter->p_sys->scaleinc = -1;
if( p_filter->p_sys->scale <= 1 ) p_filter->p_sys->scaleinc = 1;
w = p_filter->fmt_out.video.i_width*p_filter->p_sys->scale/150;
h = p_filter->fmt_out.video.i_height*p_filter->p_sys->scale/150;
if( p_filter->p_sys->x*2 + w >= p_filter->fmt_out.video.i_width )
p_filter->p_sys->xinc = -1;
if( p_filter->p_sys->x <= 0 )
p_filter->p_sys->xinc = 1;
if( p_filter->p_sys->x*2 + w >= p_filter->fmt_out.video.i_width )
p_filter->p_sys->x = (p_filter->fmt_out.video.i_width-w)/2;
if( p_filter->p_sys->y*2 + h >= p_filter->fmt_out.video.i_height )
p_filter->p_sys->y = (p_filter->fmt_out.video.i_height-h)/2;
if( p_filter->p_sys->y*2 + h >= p_filter->fmt_out.video.i_height )
p_filter->p_sys->yinc = -1;
if( p_filter->p_sys->y <= 0 )
p_filter->p_sys->yinc = 1;
for( y = 0; y< 16; y++ )
{
if( p_filter->p_sys->v == 0 && p_filter->p_sys->u != 0 )
p_filter->p_sys->u -= 1;
else if( p_filter->p_sys->u == 0xff )
p_filter->p_sys->v -= 1;
else if( p_filter->p_sys->v == 0xff )
p_filter->p_sys->u += 1;
else if( p_filter->p_sys->u == 0 )
p_filter->p_sys->v += 1;
}
p_outpic->date = p_pic->date;
p_outpic->b_force = p_pic->b_force;
p_outpic->i_nb_fields = p_pic->i_nb_fields;
p_outpic->b_progressive = p_pic->b_progressive;
p_outpic->b_top_field_first = p_pic->b_top_field_first;
p_pic->pf_release( p_pic );
return p_outpic;
}

211
modules/video_filter/ripple.c Normal file
View File

@ -0,0 +1,211 @@
/*****************************************************************************
* ripple.c : Ripple video effect plugin for vlc
*****************************************************************************
* 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
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <math.h> /* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static picture_t *Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("Ripple video filter") );
set_shortname( N_( "Ripple" ));
set_capability( "video filter2", 0 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER2 );
add_shortcut( "ripple" );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct filter_sys_t
{
double f_angle;
mtime_t last_date;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
/* Allocate structure */
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
msg_Err( p_filter, "out of memory" );
return VLC_ENOMEM;
}
p_filter->pf_video_filter = Filter;
p_filter->p_sys->f_angle = 0.0;
p_filter->p_sys->last_date = 0;
return VLC_SUCCESS;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
free( p_filter->p_sys );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_outpic;
int i_index;
double f_angle;
mtime_t new_date = mdate();
if( !p_pic ) return NULL;
p_outpic = p_filter->pf_vout_buffer_new( p_filter );
if( !p_outpic )
{
msg_Warn( p_filter, "can't get output picture" );
if( p_pic->pf_release )
p_pic->pf_release( p_pic );
return NULL;
}
p_filter->p_sys->f_angle -= (p_filter->p_sys->last_date - new_date) / 100000.0;
p_filter->p_sys->last_date = new_date;
f_angle = p_filter->p_sys->f_angle;
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
{
int i_line, i_first_line, i_num_lines, i_offset;
uint8_t black_pixel;
uint8_t *p_in, *p_out;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
i_num_lines = p_pic->p[i_index].i_visible_lines;
i_first_line = i_num_lines * 4 / 5;
p_in = p_pic->p[i_index].p_pixels;
p_out = p_outpic->p[i_index].p_pixels;
for( i_line = 0 ; i_line < i_first_line ; i_line++ )
{
p_filter->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_index].i_visible_pitch );
p_in += p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for( i_line = i_first_line ; i_line < i_num_lines ; i_line++ )
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset = (int)( (double)(p_pic->p[i_index].i_pitch)
* sin( f_angle + 2.0 * (double)i_line
/ (double)( 1 + i_line
- i_first_line) )
* (double)(i_line - i_first_line)
/ (double)i_num_lines
/ 8.0 );
if( i_offset )
{
if( i_offset < 0 )
{
p_filter->p_vlc->pf_memcpy( p_out, p_in - i_offset,
p_pic->p[i_index].i_visible_pitch + i_offset );
p_in -= p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
memset( p_out + i_offset, black_pixel, -i_offset );
}
else
{
p_filter->p_vlc->pf_memcpy( p_out + i_offset, p_in,
p_pic->p[i_index].i_visible_pitch - i_offset );
memset( p_out, black_pixel, i_offset );
p_in -= p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
else
{
p_filter->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_index].i_visible_pitch );
p_in -= p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
}
p_outpic->date = p_pic->date;
p_outpic->b_force = p_pic->b_force;
p_outpic->i_nb_fields = p_pic->i_nb_fields;
p_outpic->b_progressive = p_pic->b_progressive;
p_outpic->b_top_field_first = p_pic->b_top_field_first;
p_pic->pf_release( p_pic );
return p_outpic;
}

198
modules/video_filter/wave.c Normal file
View File

@ -0,0 +1,198 @@
/*****************************************************************************
* wave.c : Wave video effect plugin for vlc
*****************************************************************************
* 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
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <math.h> /* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static picture_t *Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("Wave video filter") );
set_shortname( N_( "Wave" ));
set_capability( "video filter2", 0 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER2 );
add_shortcut( "wave" );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct filter_sys_t
{
double f_angle;
mtime_t last_date;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
/* Allocate structure */
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
msg_Err( p_filter, "out of memory" );
return VLC_ENOMEM;
}
p_filter->pf_video_filter = Filter;
p_filter->p_sys->f_angle = 0.0;
p_filter->p_sys->last_date = 0;
return VLC_SUCCESS;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
free( p_filter->p_sys );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_outpic;
int i_index;
double f_angle;
mtime_t new_date = mdate();
if( !p_pic ) return NULL;
p_outpic = p_filter->pf_vout_buffer_new( p_filter );
if( !p_outpic )
{
msg_Warn( p_filter, "can't get output picture" );
if( p_pic->pf_release )
p_pic->pf_release( p_pic );
return NULL;
}
p_filter->p_sys->f_angle += (new_date - p_filter->p_sys->last_date) / 200000.0;
p_filter->p_sys->last_date = new_date;
f_angle = p_filter->p_sys->f_angle;
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
{
int i_line, i_num_lines, i_offset;
uint8_t black_pixel;
uint8_t *p_in, *p_out;
p_in = p_pic->p[i_index].p_pixels;
p_out = p_outpic->p[i_index].p_pixels;
i_num_lines = p_pic->p[i_index].i_visible_lines;
black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80;
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for( i_line = 0 ; i_line < i_num_lines ; i_line++ )
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset = (int)( (double)(p_pic->p[i_index].i_visible_pitch)
* sin( f_angle + 10.0 * (double)i_line
/ (double)i_num_lines )
/ 20.0 );
if( i_offset )
{
if( i_offset < 0 )
{
p_filter->p_vlc->pf_memcpy( p_out, p_in - i_offset,
p_pic->p[i_index].i_visible_pitch + i_offset );
p_in += p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
memset( p_out + i_offset, black_pixel, -i_offset );
}
else
{
p_filter->p_vlc->pf_memcpy( p_out + i_offset, p_in,
p_pic->p[i_index].i_visible_pitch - i_offset );
memset( p_out, black_pixel, i_offset );
p_in += p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
else
{
p_filter->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_index].i_visible_pitch );
p_in += p_pic->p[i_index].i_pitch;
p_out += p_outpic->p[i_index].i_pitch;
}
}
}
p_outpic->date = p_pic->date;
p_outpic->b_force = p_pic->b_force;
p_outpic->i_nb_fields = p_pic->i_nb_fields;
p_outpic->b_progressive = p_pic->b_progressive;
p_outpic->b_top_field_first = p_pic->b_top_field_first;
p_pic->pf_release( p_pic );
return p_outpic;
}