Commit ed290de2 authored by dionoea's avatar dionoea
Browse files

* magnify video filter. Still needs some work on the zoom method (which

   isn't really efficient)
parent 15ed7cfb
......@@ -1004,7 +1004,7 @@ VLC_ADD_PLUGINS([fixed32tos16 s16tofixed32 u8tofixed32])
VLC_ADD_PLUGINS([trivial_resampler ugly_resampler])
VLC_ADD_PLUGINS([trivial_channel_mixer trivial_mixer])
VLC_ADD_PLUGINS([playlist export sgimb m3u nsc xtag])
VLC_ADD_PLUGINS([i420_rgb rawvideo blend scale image logo])
VLC_ADD_PLUGINS([i420_rgb rawvideo blend scale image logo magnify])
VLC_ADD_PLUGINS([wav araw subtitle vobsub adpcm a52sys dtssys au ty voc xa nuv])
VLC_ADD_PLUGINS([access_directory access_file access_udp access_tcp])
VLC_ADD_PLUGINS([access_http access_mms access_ftp ipv4])
......
......@@ -17,4 +17,5 @@ SOURCES_rss = rss.c
SOURCES_motiondetect = motiondetect.c
SOURCES_rv32 = rv32.c
SOURCES_osdmenu = osdmenu.c
SOURCES_magnify = magnify.c
noinst_HEADERS += filter_common.h
/*****************************************************************************
* magnify.c : Magnify/Zoom interactive effect
*****************************************************************************
* Copyright (C) 2005 the VideoLAN team
* $Id: $
*
* Authors: 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <math.h>
#include "filter_common.h"
#include "vlc_image.h"
#include "vlc_input.h"
#include "vlc_playlist.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
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 int SendEvents ( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int MouseEvent ( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("Magnify/Zoom interactive video filter") );
set_shortname( N_( "Magnify" ));
set_capability( "video filter", 0 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* vout_sys_t: Magnify video output method descriptor
*****************************************************************************/
struct vout_sys_t
{
vout_thread_t *p_vout;
image_handler_t *p_image;
int i_zoom; /* zoom level in percent */
int i_x, i_y; /* top left corner coordinates in original image */
vlc_bool_t b_visible; /* is "interface" visible ? */
};
/*****************************************************************************
* 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 Magnify video thread output method
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
/* Allocate structure */
p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
if( p_vout->p_sys == NULL )
{
msg_Err( p_vout, "out of memory" );
return VLC_ENOMEM;
}
p_vout->p_sys->p_image = image_HandlerCreate( p_vout );
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;
return VLC_SUCCESS;
}
/*****************************************************************************
* Init: initialize Magnify 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;
}
#define VIS_ZOOM 4
p_vout->p_sys->i_x = 0;
p_vout->p_sys->i_y = 0;
#define ZOOM_FACTOR 100
p_vout->p_sys->i_zoom = 200;
var_AddCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout );
var_AddCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout );
var_AddCallback( p_vout->p_sys->p_vout, "mouse-clicked",
MouseEvent, p_vout);
ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
ADD_PARENT_CALLBACKS( SendEventsToChild );
return VLC_SUCCESS;
}
/*****************************************************************************
* End: terminate Magnify 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 );
}
var_DelCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
var_DelCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
var_DelCallback( p_vout->p_sys->p_vout, "mouse-clicked", MouseEvent, p_vout);
}
/*****************************************************************************
* Destroy: destroy Magnify video thread output method
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_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 );
}
image_HandlerDelete( p_vout->p_sys->p_image );
DEL_PARENT_CALLBACKS( SendEventsToChild );
free( p_vout->p_sys );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************/
static void Render( vout_thread_t *p_vout, picture_t *p_pic )
{
picture_t *p_outpic;
int o_x = p_vout->p_sys->i_x;
int o_y = p_vout->p_sys->i_y;
int o_zoom = p_vout->p_sys->i_zoom;
int x,y,o_yp,o_xp;
int v_w, v_h;
video_format_t fmt_out = {0};
picture_t *p_converted;
plane_t *p_oyp=NULL;
/* 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_vout->b_die || p_vout->b_error )
{
return;
}
msleep( VOUT_OUTMEM_SLEEP );
}
vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
p_oyp = &(p_outpic->p[Y_PLANE]);
/* background magnified image */
if( o_zoom != ZOOM_FACTOR )
{
#define magnify( plane ) \
o_yp = o_y*p_outpic->p[plane].i_lines/p_outpic->p[Y_PLANE].i_lines; \
o_xp = o_x*p_outpic->p[plane].i_pitch/p_outpic->p[Y_PLANE].i_pitch; \
for( y=0; y<p_outpic->p[plane].i_visible_lines; y++ ) \
{ \
for( x=0; x<p_outpic->p[plane].i_visible_pitch; x++ ) \
{ \
p_outpic->p[plane].p_pixels[y*p_outpic->p[plane].i_pitch+x] = \
p_pic->p[plane].p_pixels[ \
( o_yp + y*ZOOM_FACTOR/o_zoom )*p_outpic->p[plane].i_pitch \
+ o_xp + x*ZOOM_FACTOR/o_zoom \
]; \
} \
}
magnify( Y_PLANE );
magnify( U_PLANE );
magnify( V_PLANE );
#undef magnify
}
else
{
#define copy( plane ) \
memcpy( p_outpic->p[plane].p_pixels, p_pic->p[plane].p_pixels, \
p_outpic->p[plane].i_lines * p_outpic->p[plane].i_pitch );
copy( Y_PLANE );
copy( U_PLANE );
copy( V_PLANE );
#undef copy
}
if( p_vout->p_sys->b_visible )
{
/* image visualization */
fmt_out = p_vout->fmt_out;
fmt_out.i_width = p_vout->render.i_width/VIS_ZOOM;
fmt_out.i_height = p_vout->render.i_height/VIS_ZOOM;
p_converted = image_Convert( p_vout->p_sys->p_image, p_pic,
&(p_pic->format), &fmt_out );
#define copyimage( plane ) \
for( y=0; y<p_converted->p[plane].i_visible_lines; y++) \
{ \
memcpy( p_outpic->p[plane].p_pixels+y*p_outpic->p[plane].i_pitch, \
p_converted->p[plane].p_pixels+y*p_converted->p[plane].i_pitch, \
p_converted->p[plane].i_visible_pitch ); \
}
copyimage( Y_PLANE );
copyimage( U_PLANE );
copyimage( V_PLANE );
#undef copyimage
p_converted->pf_release( p_converted );
/* white rectangle on visualization */
v_w = p_oyp->i_pitch*ZOOM_FACTOR/(VIS_ZOOM*o_zoom);
v_h = (o_y+p_oyp->i_lines*ZOOM_FACTOR/o_zoom)/VIS_ZOOM;
/* top line */
memset( p_oyp->p_pixels
+ o_y/VIS_ZOOM*p_oyp->i_pitch
+ o_x/VIS_ZOOM, 0xff, v_w+1 );
for( y = o_y/VIS_ZOOM+1; y < v_h; y++ )
{
/* left line */
p_oyp->p_pixels[
y*p_oyp->i_pitch+o_x/VIS_ZOOM
] = 0xff;
/* right line */
p_oyp->p_pixels[
y*p_oyp->i_pitch+o_x/VIS_ZOOM + v_w
] = 0xff;
}
/* bottom line */
memset( p_oyp->p_pixels
+ v_h*p_oyp->i_pitch
+ o_x/VIS_ZOOM, 0xff, v_w+1 );
/* */
v_h = p_oyp->i_lines/VIS_ZOOM;
}
else
{
v_h = 1;
}
/* print a small "VLC ZOOM" ... gruikkkkkkkkk */
#define DRAW(a) {int c,l=1;L a;}
#define L ;l++,c=1
#define X ;draw(l,c);c+=1
#define o +1
#define draw(y,x) p_oyp->p_pixels[(v_h+y)*p_oyp->i_pitch+x] = 0xff;
if( p_vout->p_sys->b_visible )
DRAW(
X o o o X o X o o o o o o X X X X o o o X X X X X o o X X X o o o X X X o o X X o X X o o o X o o o X o X X X X X o X X X X o o X X X X X L
X o o o X o X o o o o o X o o o o o o o o o o X o o X o o o X o X o o o X o X o X o X o o o X o o o X o o o X o o o X o o o X o X o o o o L
o X o X o o X o o o o o X o o o o o o o o o X o o o X o o o X o X o o o X o X o o o X o o o X X X X X o o o X o o o X o o o X o X X X X o L
o X o X o o X o o o o o X o o o o o o o o X o o o o X o o o X o X o o o X o X o o o X o o o X o o o X o o o X o o o X o o o X o X o o o o L
o o X o o o X X X X X o o X X X X o o o X X X X X o o X X X o o o X X X o o X o o o X o o o X o o o X o X X X X X o X X X X o o X X X X X L
)
else
DRAW(
X o o o X o X o o o o o o X X X X o o o X X X X X o o X X X o o o X X X o o X X o X X o o o o X X X X o X o o o X o o X X X o o X o o o X L
X o o o X o X o o o o o X o o o o o o o o o o X o o X o o o X o X o o o X o X o X o X o o o X o o o o o X o o o X o X o o o X o X o o o X L
o X o X o o X o o o o o X o o o o o o o o o X o o o X o o o X o X o o o X o X o o o X o o o o X X X o o X X X X X o X o o o X o X o X o X L
o X o X o o X o o o o o X o o o o o o o o X o o o o X o o o X o X o o o X o X o o o X o o o o o o o X o X o o o X o X o o o X o X o X o X L
o o X o o o X X X X X o o X X X X o o o X X X X X o o X X X o o o X X X o o X o o o X o o o X X X X o o X o o o X o o X X X o o o X o X o L
)
#undef DRAW
#undef L
#undef X
#undef O
#undef draw
if( p_vout->p_sys->b_visible )
{
/* zoom gauge */
memset( p_oyp->p_pixels
+ (v_h+9)*p_oyp->i_pitch,
0xff, 41 );
for( y = v_h + 10; y < v_h + 90; y++ )
{
int width = v_h + 90 - y;
width = (width*width)/160;
if( (80 - y + v_h)*10 < o_zoom )
{
memset( p_oyp->p_pixels
+ y*p_oyp->i_pitch,
0xff, width );
}
else
{
p_oyp->p_pixels[y*p_oyp->i_pitch] = 0xff;
p_oyp->p_pixels[y*p_oyp->i_pitch + width - 1] = 0xff;
}
}
}
vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
}
/*****************************************************************************
* 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;
}
/*****************************************************************************
* MouseEvent: callback for mouse events
*****************************************************************************/
static int MouseEvent( 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_data;
vlc_value_t vald,valx,valy;
#define MOUSE_DOWN 1
#define MOUSE_CLICKED 2
#define MOUSE_MOVE_X 4
#define MOUSE_MOVE_Y 8
#define MOUSE_MOVE 12
uint8_t mouse= 0;
int v_h = p_vout->output.i_height*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
int v_w = p_vout->output.i_width*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
if( psz_var[6] == 'x' ) mouse |= MOUSE_MOVE_X;
if( psz_var[6] == 'y' ) mouse |= MOUSE_MOVE_Y;
if( psz_var[6] == 'c' ) mouse |= MOUSE_CLICKED;
var_Get( p_vout->p_sys->p_vout, "mouse-button-down", &vald );
if( vald.i_int & 0x1 ) mouse |= MOUSE_DOWN;
var_Get( p_vout->p_sys->p_vout, "mouse-y", &valy );
var_Get( p_vout->p_sys->p_vout, "mouse-x", &valx );
if( ( mouse&MOUSE_MOVE && mouse&MOUSE_DOWN)
|| mouse&MOUSE_CLICKED )
{
/* (mouse moved and mouse button is down) or (mouse clicked) */
if( p_vout->p_sys->b_visible )
{
if( 0 <= valy.i_int
&& valy.i_int < (int)p_vout->output.i_height/VIS_ZOOM
&& 0 <= valx.i_int
&& valx.i_int < (int)p_vout->output.i_width/VIS_ZOOM )
{
/* mouse is over visualisation */
p_vout->p_sys->i_x = __MIN( __MAX( valx.i_int*VIS_ZOOM - v_w/2, 0 ),
p_vout->output.i_width - v_w - 1);
p_vout->p_sys->i_y = __MIN( __MAX( valy.i_int * VIS_ZOOM - v_h/2,
0 ), p_vout->output.i_height - v_h - 1);
}
else if( valx.i_int >= 0 && valx.i_int < 80
&& valy.i_int >= (int)p_vout->output.i_height/VIS_ZOOM
&& valy.i_int < (int)p_vout->output.i_height/VIS_ZOOM + 9
&& mouse&MOUSE_CLICKED )
{
/* mouse is over the "VLC ZOOM HIDE" text */
p_vout->p_sys->b_visible = VLC_FALSE;
}
else if( (int)p_vout->output.i_height/VIS_ZOOM + 9 <= valy.i_int
&& valy.i_int <= (int)p_vout->output.i_height/VIS_ZOOM + 90
&& 0 <= valx.i_int
&& valx.i_int <=
(( (int)p_vout->output.i_height/VIS_ZOOM + 90 - valy.i_int)
*( (int)p_vout->output.i_height/VIS_ZOOM + 90 - valy.i_int))/160 )
{
/* mouse is over zoom gauge */
p_vout->p_sys->i_zoom = __MAX( ZOOM_FACTOR,
( 80 + (int)p_vout->output.i_height/VIS_ZOOM
- valy.i_int + 2) * ZOOM_FACTOR/10 );
}
else if( mouse&MOUSE_MOVE_X && !(mouse&MOUSE_CLICKED) )
{
p_vout->p_sys->i_x -= (newval.i_int - oldval.i_int)
*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
}
else if( mouse&MOUSE_MOVE_Y && !(mouse&MOUSE_CLICKED) )
{
p_vout->p_sys->i_y -= (newval.i_int - oldval.i_int)
*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
}
}
else
{
if( valx.i_int >= 0 && valx.i_int < 80 && valy.i_int >= 0
&& valy.i_int <= 10 && mouse&MOUSE_CLICKED )
{
/* mouse is over the "VLC ZOOM SHOW" text */
p_vout->p_sys->b_visible = VLC_TRUE;
}
else if( mouse&MOUSE_MOVE_X && !(mouse&MOUSE_CLICKED) )
{
p_vout->p_sys->i_x -= (newval.i_int - oldval.i_int)
*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
}
else if( mouse&MOUSE_MOVE_Y && !(mouse&MOUSE_CLICKED) )
{
p_vout->p_sys->i_y -= (newval.i_int - oldval.i_int)
*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
}
}
}
p_vout->p_sys->i_x =
__MAX( 0, __MIN( p_vout->p_sys->i_x, (int)p_vout->output.i_width
- (int)p_vout->output.i_width*ZOOM_FACTOR/p_vout->p_sys->i_zoom - 1 ));
p_vout->p_sys->i_y =
__MAX( 0, __MIN( p_vout->p_sys->i_y, (int)p_vout->output.i_height
- (int)p_vout->output.i_height*ZOOM_FACTOR/p_vout->p_sys->i_zoom - 1 ));
return VLC_SUCCESS;
}
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