/*****************************************************************************
* magnify.c : Magnify/Zoom interactive effect
*****************************************************************************
- * Copyright (C) 2005 the VideoLAN team
+ * Copyright (C) 2005-2009 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_vout.h>
-
#include <math.h>
#include <assert.h>
-#include "filter_common.h"
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_image.h>
+#include <vlc_filter.h>
#include "filter_picture.h"
-#include "vlc_image.h"
-
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin ()
set_description( N_("Magnify/Zoom interactive video filter") )
set_shortname( N_( "Magnify" ))
- set_capability( "video filter", 0 )
+ set_capability( "video filter2", 0 )
set_category( CAT_VIDEO )
set_subcategory( SUBCAT_VIDEO_VFILTER )
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static int Init ( vout_thread_t * );
-static void End ( vout_thread_t * );
-static void Render ( vout_thread_t *, picture_t * );
-
-static int MouseEvent( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
+static picture_t *Filter( filter_t *, picture_t * );
+static int Mouse( filter_t *, vlc_mouse_t *, const vlc_mouse_t *, const vlc_mouse_t * );
+/* */
static void DrawZoomStatus( uint8_t *, int i_pitch, int i_width, int i_height,
int i_offset_x, int i_offset_y, bool b_visible );
static void DrawRectangle( uint8_t *, int i_pitch, int i_width, int i_height,
int x, int y, int i_w, int i_h );
-/*****************************************************************************
- * vout_sys_t: Magnify video output method descriptor
- *****************************************************************************/
-struct vout_sys_t
+/* */
+struct filter_sys_t
{
- vout_thread_t *p_vout;
-
image_handler_t *p_image;
int64_t i_hide_timeout;
- vlc_mutex_t lock;
int i_zoom; /* zoom level in percent */
int i_x, i_y; /* top left corner coordinates in original image */
#define ZOOM_FACTOR 8
/*****************************************************************************
- * 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
+ * Create:
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
+ filter_t *p_filter = (filter_t *)p_this;
+ filter_sys_t *p_sys;
- switch( p_vout->fmt_in.i_chroma )
+ /* */
+ switch( p_filter->fmt_in.i_codec )
+ {
+ CASE_PLANAR_YUV
+ case VLC_CODEC_GREY:
+ break;
+ default:
+ msg_Err( p_filter, "Unsupported chroma" );
+ return VLC_EGENERIC;
+ }
+ if( !es_format_IsSimilar( &p_filter->fmt_in, &p_filter->fmt_out ) )
{
- CASE_PLANAR_YUV
- case VLC_CODEC_GREY:
- break;
- default:
- msg_Err( p_vout, "Unsupported chroma" );
- return VLC_EGENERIC;
+ msg_Err( p_filter, "Input and output format does not match" );
+ return VLC_EGENERIC;
}
/* Allocate structure */
- p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_vout->p_sys == NULL )
+ p_filter->p_sys = p_sys = malloc( sizeof( *p_sys ) );
+ if( !p_filter->p_sys )
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 )
-{
- video_format_t fmt;
-
- I_OUTPUTPICTURES = 0;
-
- memset( &fmt, 0, sizeof(video_format_t) );
-
- /* 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 )
+ p_sys->p_image = image_HandlerCreate( p_filter );
+ if( !p_sys->p_image )
{
- msg_Err( p_vout, "cannot open vout, aborting" );
+ free( p_sys );
return VLC_EGENERIC;
}
- vlc_mutex_init( &p_vout->p_sys->lock );
- p_vout->p_sys->i_x = 0;
- p_vout->p_sys->i_y = 0;
- p_vout->p_sys->i_zoom = 2*ZOOM_FACTOR;
- p_vout->p_sys->b_visible = true;
- p_vout->p_sys->i_last_activity = mdate();
- p_vout->p_sys->i_hide_timeout = 1000 * var_GetInteger( p_vout, "mouse-hide-timeout" );
-
- vout_filter_AllocateDirectBuffers( p_vout, VOUT_MAX_PICTURES );
-
- vout_filter_AddChild( p_vout, p_vout->p_sys->p_vout, MouseEvent );
+ p_sys->i_x = 0;
+ p_sys->i_y = 0;
+ p_sys->i_zoom = 2*ZOOM_FACTOR;
+ p_sys->b_visible = true;
+ p_sys->i_last_activity = mdate();
+ p_sys->i_hide_timeout = 1000 * var_CreateGetInteger( p_filter, "mouse-hide-timeout" ); /* FIXME */
+ /* */
+ p_filter->pf_video_filter = Filter;
+ p_filter->pf_video_mouse = Mouse;
return VLC_SUCCESS;
}
/*****************************************************************************
- * End: terminate Magnify video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- vout_filter_DelChild( p_vout, p_sys->p_vout, MouseEvent );
- vout_CloseAndRelease( p_sys->p_vout );
-
- vout_filter_ReleaseDirectBuffers( p_vout );
-
- vlc_mutex_destroy( &p_vout->p_sys->lock );
-}
-
-/*****************************************************************************
- * Destroy: destroy Magnify video thread output method
+ * Destroy:
*****************************************************************************/
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;
+ filter_sys_t *p_sys = p_filter->p_sys;
- image_HandlerDelete( p_vout->p_sys->p_image );
+ image_HandlerDelete( p_sys->p_image );
-
- free( p_vout->p_sys );
+ free( p_sys );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************/
-static void Render( vout_thread_t *p_vout, picture_t *p_pic )
+static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
- vout_sys_t *p_sys = p_vout->p_sys;
+ filter_sys_t *p_sys = p_filter->p_sys;
picture_t *p_outpic;
int v_w, v_h;
plane_t *p_oyp;
int i_plane;
- /* This is a new frame. Get a structure from the video_output. */
- while( ( p_outpic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) )
- == NULL )
+ p_outpic = filter_NewPicture( p_filter );
+ if( !p_outpic )
{
- if( !vlc_object_alive (p_vout) || p_vout->b_error )
- {
- return;
- }
- msleep( VOUT_OUTMEM_SLEEP );
+ picture_Release( p_pic );
+ return NULL;
}
- p_outpic->date = p_pic->date;
-
- vlc_mutex_lock( &p_sys->lock );
+ /* */
const bool b_visible = p_sys->b_visible;
const int o_x = p_sys->i_x;
const int o_y = p_sys->i_y;
const int o_zoom = p_sys->i_zoom;
- const int64_t i_last_activity = p_sys->i_last_activity;
- vlc_mutex_unlock( &p_sys->lock );
/* background magnified image */
if( o_zoom != ZOOM_FACTOR )
const int o_yp = o_y * p_outpic->p[i_plane].i_lines / p_outpic->p[Y_PLANE].i_lines;
const int o_xp = o_x * p_outpic->p[i_plane].i_pitch / p_outpic->p[Y_PLANE].i_pitch;
- crop.p[i_plane].p_pixels += o_yp * p_outpic->p[i_plane].i_pitch + o_xp;
+ crop.p[i_plane].p_pixels += o_yp * p_pic->p[i_plane].i_pitch + o_xp;
}
/* */
- fmt_in = p_vout->fmt_out;
+ fmt_in = p_filter->fmt_in.video;
fmt_in.i_width = (fmt_in.i_width * ZOOM_FACTOR / o_zoom) & ~1;
fmt_in.i_height = (fmt_in.i_height * ZOOM_FACTOR / o_zoom) & ~1;
/* */
- fmt_out = p_vout->fmt_out;
+ fmt_out = p_filter->fmt_out.video;
p_converted = image_Convert( p_sys->p_image, &crop, &fmt_in, &fmt_out );
video_format_t fmt_out;
/* image visualization */
- fmt_out = p_vout->fmt_out;
- fmt_out.i_width = (p_vout->render.i_width/VIS_ZOOM ) & ~1;
- fmt_out.i_height = (p_vout->render.i_height/VIS_ZOOM) & ~1;
+ fmt_out = p_filter->fmt_out.video;
+ fmt_out.i_width = (fmt_out.i_width /VIS_ZOOM) & ~1;
+ fmt_out.i_height = (fmt_out.i_height/VIS_ZOOM) & ~1;
p_converted = image_Convert( p_sys->p_image, p_pic,
&p_pic->format, &fmt_out );
- for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
- {
- int y;
- for( y = 0; y < p_converted->p[i_plane].i_visible_lines; y++)
- {
- vlc_memcpy(
- &p_outpic->p[i_plane].p_pixels[y*p_outpic->p[i_plane].i_pitch],
- p_converted->p[i_plane].p_pixels+y*p_converted->p[i_plane].i_pitch,
- p_converted->p[i_plane].i_visible_pitch );
- }
- }
+
+ /* It will put only what can be copied at the top left */
+ picture_CopyPixels( p_outpic, p_converted );
+
picture_Release( p_converted );
/* white rectangle on visualization */
}
/* print a small "VLC ZOOM" */
- if( b_visible || i_last_activity + p_sys->i_hide_timeout > mdate() )
+
+ if( b_visible || p_sys->i_last_activity + p_sys->i_hide_timeout > mdate() )
DrawZoomStatus( p_oyp->p_pixels, p_oyp->i_pitch, p_oyp->i_pitch, p_oyp->i_lines,
1, v_h, b_visible );
if( b_visible )
{
- int y;
-
/* zoom gauge */
- vlc_memset( p_oyp->p_pixels + (v_h+9)*p_oyp->i_pitch, 0xff, 41 );
- for( y = v_h + 10; y < v_h + 90; y++ )
+ memset( p_oyp->p_pixels + (v_h+9)*p_oyp->i_pitch, 0xff, 41 );
+ for( int y = v_h + 10; y < v_h + 90; y++ )
{
- int width = v_h + 90 - y;
- width = (width*width)/160;
+ int i_width = v_h + 90 - y;
+ i_width = i_width * i_width / 160;
if( (80 - y + v_h)*ZOOM_FACTOR/10 < o_zoom )
{
- vlc_memset( p_oyp->p_pixels + y*p_oyp->i_pitch, 0xff, width );
+ memset( p_oyp->p_pixels + y*p_oyp->i_pitch, 0xff, i_width );
}
else
{
p_oyp->p_pixels[y*p_oyp->i_pitch] = 0xff;
- p_oyp->p_pixels[y*p_oyp->i_pitch + width - 1] = 0xff;
+ p_oyp->p_pixels[y*p_oyp->i_pitch + i_width - 1] = 0xff;
}
}
}
- vout_DisplayPicture( p_sys->p_vout, p_outpic );
+ return CopyInfoAndRelease( p_outpic, p_pic );
}
static void DrawZoomStatus( uint8_t *pb_dst, int i_pitch, int i_width, int i_height,
vlc_memset( &pb_dst[(y+i_h-1) * i_pitch + x], 0xff, i_w );
}
-/*****************************************************************************
- * 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 )
+static int Mouse( filter_t *p_filter, vlc_mouse_t *p_mouse, const vlc_mouse_t *p_old, const vlc_mouse_t *p_new )
{
- vout_thread_t *p_vout = p_data;
- vlc_value_t vald,valx,valy;
-
- assert( p_this == VLC_OBJECT(p_vout->p_sys->p_vout) );
+ filter_sys_t *p_sys = p_filter->p_sys;
+ const video_format_t *p_fmt = &p_filter->fmt_in.video;
-#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;
-
- 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 );
-
- vlc_mutex_lock( &p_vout->p_sys->lock );
+ /* */
+ const bool b_click = vlc_mouse_HasPressed( p_old, p_new, MOUSE_BUTTON_LEFT );
+ const bool b_pressed = vlc_mouse_IsLeftPressed( p_new );
- const int v_h = p_vout->output.i_height*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
- const int v_w = p_vout->output.i_width*ZOOM_FACTOR/p_vout->p_sys->i_zoom;
+ bool b_grab = false;
- if( ( mouse&MOUSE_MOVE && mouse&MOUSE_DOWN)
- || mouse&MOUSE_CLICKED )
+ /* Find the mouse position */
+ if( p_sys->b_visible )
{
- /* (mouse moved and mouse button is down) or (mouse clicked) */
- if( p_vout->p_sys->b_visible )
+ const int i_visu_width = p_fmt->i_width / VIS_ZOOM;
+ const int i_visu_height = p_fmt->i_height / VIS_ZOOM;
+
+ if( p_new->i_x >= 0 && p_new->i_x < i_visu_width &&
+ p_new->i_y >= 0 && p_new->i_y < i_visu_height )
{
- 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 )
+ /* Visualization */
+ if( b_pressed )
{
- /* 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 = 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;
+ const int v_w = p_fmt->i_width * ZOOM_FACTOR / p_sys->i_zoom;
+ const int v_h = p_fmt->i_height * ZOOM_FACTOR / p_sys->i_zoom;
+
+ p_sys->i_x = __MIN( __MAX( p_new->i_x * VIS_ZOOM - v_w/2, 0 ),
+ (int)p_fmt->i_width - v_w - 1);
+ p_sys->i_y = __MIN( __MAX( p_new->i_y * VIS_ZOOM - v_h/2, 0 ),
+ (int)p_fmt->i_height - v_h - 1);
+
+ b_grab = true;
}
}
- else
+ else if( p_new->i_x >= 0 && p_new->i_x < 80 &&
+ p_new->i_y >= i_visu_height &&
+ p_new->i_y < i_visu_height + 9 )
{
- if( valx.i_int >= 0 && valx.i_int < 80 && valy.i_int >= 0
- && valy.i_int <= 10 && mouse&MOUSE_CLICKED )
+ /* Hide text */
+ if( b_click )
{
- /* mouse is over the "VLC ZOOM SHOW" text */
- p_vout->p_sys->b_visible = true;
+ p_sys->b_visible = false;
+ b_grab = true;
}
- else if( mouse&MOUSE_MOVE_X && !(mouse&MOUSE_CLICKED) )
+ }
+ else if( p_new->i_x >= 0 &&
+ p_new->i_x <= ( i_visu_height + 90 - p_new->i_y ) *
+ ( i_visu_height + 90 - p_new->i_y ) / 160 &&
+ p_new->i_y >= i_visu_height + 9 &&
+ p_new->i_y <= i_visu_height + 90 )
+ {
+ /* Zoom gauge */
+ if( b_pressed )
{
- p_vout->p_sys->i_x -= (newval.i_int - oldval.i_int)
- *ZOOM_FACTOR/p_vout->p_sys->i_zoom;
+ p_sys->i_zoom = __MAX( ZOOM_FACTOR,
+ (80 + i_visu_height - p_new->i_y + 2) *
+ ZOOM_FACTOR / 10 );
+
+ const int v_w = p_fmt->i_width * ZOOM_FACTOR / p_sys->i_zoom;
+ const int v_h = p_fmt->i_height * ZOOM_FACTOR / p_sys->i_zoom;
+ p_sys->i_x = __MAX( __MIN( p_sys->i_x, (int)p_fmt->i_width - v_w - 1 ), 0 );
+ p_sys->i_y = __MAX( __MIN( p_sys->i_y, (int)p_fmt->i_height - v_h - 1 ), 0 );
+
+ b_grab = true;
}
- else if( mouse&MOUSE_MOVE_Y && !(mouse&MOUSE_CLICKED) )
+ }
+ }
+ else
+ {
+ if( p_new->i_x >= 0 && p_new->i_x < 80 &&
+ p_new->i_y >= 0 && p_new->i_y <= 10 )
+ {
+ /* Show text */
+ if( b_click )
{
- p_vout->p_sys->i_y -= (newval.i_int - oldval.i_int)
- *ZOOM_FACTOR/p_vout->p_sys->i_zoom;
+ p_sys->b_visible = true;
+ b_grab = true;
}
}
}
- 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 ));
-
- p_vout->p_sys->i_last_activity = mdate();
- vlc_mutex_unlock( &p_vout->p_sys->lock );
+ if( vlc_mouse_HasMoved( p_old, p_new ) )
+ p_sys->i_last_activity = mdate();
- /* FIXME forward event when not grabbed */
+ if( b_grab )
+ return VLC_EGENERIC;
+ /* */
+ *p_mouse = *p_new;
+ p_mouse->i_x = p_sys->i_x + p_new->i_x * ZOOM_FACTOR / p_sys->i_zoom;
+ p_mouse->i_y = p_sys->i_y + p_new->i_y * ZOOM_FACTOR / p_sys->i_zoom;
return VLC_SUCCESS;
}
+