/*****************************************************************************
* screen.c: Screen capture module.
*****************************************************************************
- * Copyright (C) 2004 the VideoLAN team
+ * Copyright (C) 2004-2008 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.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
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include "screen.h"
/*****************************************************************************
"of predefined height (16 might be a good value, and 0 means disabled)." )
#endif
+#ifdef SCREEN_SUBSCREEN
+#define TOP_TEXT N_( "Subscreen top left corner" )
+#define TOP_LONGTEXT N_( \
+ "Top coordinate of the subscreen top left corner." )
+
+#define LEFT_TEXT N_( "Subscreen top left corner" )
+#define LEFT_LONGTEXT N_( \
+ "Left coordinate of the subscreen top left corner." )
+
+#define WIDTH_TEXT N_( "Subscreen width" )
+#define WIDTH_LONGTEXT N_( \
+ "Subscreen width" )
+
+#define HEIGHT_TEXT N_( "Subscreen height" )
+#define HEIGHT_LONGTEXT N_( \
+ "Subscreen height" )
+
+#define FOLLOW_MOUSE_TEXT N_( "Follow the mouse" )
+#define FOLLOW_MOUSE_LONGTEXT N_( \
+ "Follow the mouse when capturing a subscreen." )
+#endif
+
+#ifdef SCREEN_MOUSE
+#define MOUSE_TEXT N_( "Mouse pointer image" )
+#define MOUSE_LONGTEXT N_( \
+ "If specifed, will use the image to draw the mouse pointer on the " \
+ "capture." )
+#endif
+
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
# define SCREEN_FPS 5
#endif
-vlc_module_begin();
- set_description( _("Screen Input") );
- set_shortname( _("Screen" ));
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_ACCESS );
+vlc_module_begin ()
+ set_description( N_("Screen Input") )
+ set_shortname( N_("Screen" ))
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACCESS )
add_integer( "screen-caching", DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
- change_safe();
- add_float( "screen-fps", SCREEN_FPS, 0, FPS_TEXT, FPS_LONGTEXT, VLC_TRUE );
- change_safe();
+ CACHING_TEXT, CACHING_LONGTEXT, true )
+ add_float( "screen-fps", SCREEN_FPS, 0, FPS_TEXT, FPS_LONGTEXT, true )
+
+#ifdef SCREEN_SUBSCREEN
+ add_integer( "screen-top", 0, NULL, TOP_TEXT, TOP_LONGTEXT, true )
+ add_integer( "screen-left", 0, NULL, LEFT_TEXT, LEFT_LONGTEXT, true )
+ add_integer( "screen-width", 0, NULL, WIDTH_TEXT, WIDTH_LONGTEXT, true )
+ add_integer( "screen-height", 0, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT, true )
+ add_bool( "screen-follow-mouse", false, NULL, FOLLOW_MOUSE_TEXT,
+ FOLLOW_MOUSE_LONGTEXT, true )
+#endif
+
+#ifdef SCREEN_MOUSE
+ add_file( "screen-mouse-image", "", NULL, MOUSE_TEXT, MOUSE_LONGTEXT,
+ true )
+#endif
#ifdef WIN32
add_integer( "screen-fragment-size", 0, NULL, FRAGS_TEXT,
- FRAGS_LONGTEXT, VLC_TRUE );
- change_safe();
+ FRAGS_LONGTEXT, true )
#endif
- set_capability( "access_demux", 0 );
- add_shortcut( "screen" );
- set_callbacks( Open, Close );
-vlc_module_end();
+ set_capability( "access_demux", 0 )
+ add_shortcut( "screen" )
+ set_callbacks( Open, Close )
+vlc_module_end ()
/*****************************************************************************
* Local prototypes
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
- vlc_value_t val;
/* Fill p_demux field */
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
- p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
- memset( p_sys, 0, sizeof( demux_sys_t ) );
+ p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
+ if( !p_sys )
+ return VLC_ENOMEM;
/* Update default_pts to a suitable value for screen access */
var_Create( p_demux, "screen-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
- var_Create( p_demux, "screen-fps", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT );
- var_Get( p_demux, "screen-fps", &val );
- p_sys->f_fps = val.f_float;
- p_sys->i_incr = 1000000 / val.f_float;
+ p_sys->f_fps = var_CreateGetFloat( p_demux, "screen-fps" );
+ p_sys->i_incr = 1000000 / p_sys->f_fps;;
p_sys->i_next_date = 0;
+#ifdef SCREEN_SUBSCREEN
+ p_sys->i_top = var_CreateGetInteger( p_demux, "screen-top" );
+ p_sys->i_left = var_CreateGetInteger( p_demux, "screen-left" );
+ p_sys->i_width = var_CreateGetInteger( p_demux, "screen-width" );
+ p_sys->i_height = var_CreateGetInteger( p_demux, "screen-height" );
+ if( p_sys->i_width > 0 && p_sys->i_height > 0 )
+ msg_Dbg( p_demux, "capturing subscreen top: %d, left: %d, "
+ "width: %d, height: %d",
+ p_sys->i_top,
+ p_sys->i_left,
+ p_sys->i_width,
+ p_sys->i_height );
+#endif
+
if( screen_InitCapture( p_demux ) != VLC_SUCCESS )
{
free( p_sys );
p_sys->fmt.video.i_width, p_sys->fmt.video.i_height,
p_sys->fmt.video.i_bits_per_pixel );
+#ifdef SCREEN_SUBSCREEN
+ if( p_sys->i_width > 0 && p_sys->i_height > 0 )
+ {
+ if( p_sys->i_left + p_sys->i_width > p_sys->fmt.video.i_width ||
+ p_sys->i_top + p_sys->i_height > p_sys->fmt.video.i_height )
+ {
+ msg_Err( p_demux, "subscreen region overflows the screen" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ else
+ {
+ p_sys->i_screen_width = p_sys->fmt.video.i_width;
+ p_sys->i_screen_height = p_sys->fmt.video.i_height;
+ p_sys->fmt.video.i_visible_width =
+ p_sys->fmt.video.i_width = p_sys->i_width;
+ p_sys->fmt.video.i_visible_height =
+ p_sys->fmt.video.i_height = p_sys->i_height;
+ p_sys->b_follow_mouse = var_CreateGetInteger( p_demux,
+ "screen-follow-mouse" );
+ if( p_sys->b_follow_mouse )
+ msg_Dbg( p_demux, "mouse following enabled" );
+ }
+ }
+#endif
+
+#ifdef SCREEN_MOUSE
+ char * psz_mouse = var_CreateGetNonEmptyString( p_demux,
+ "screen-mouse-image" );
+ if( psz_mouse )
+ {
+ image_handler_t *p_image;
+ video_format_t fmt_in, fmt_out;
+ msg_Dbg( p_demux, "Using %s for the mouse pointer image", psz_mouse );
+ memset( &fmt_in, 0, sizeof( fmt_in ) );
+ memset( &fmt_out, 0, sizeof( fmt_out ) );
+ fmt_out.i_chroma = VLC_CODEC_RGBA;
+ p_image = image_HandlerCreate( p_demux );
+ if( p_image )
+ {
+ p_sys->p_mouse =
+ image_ReadUrl( p_image, psz_mouse, &fmt_in, &fmt_out );
+ image_HandlerDelete( p_image );
+ }
+ if( !p_sys->p_mouse )
+ msg_Err( p_demux, "Failed to open mouse pointer image (%s)",
+ psz_mouse );
+ free( psz_mouse );
+ }
+#endif
+
p_sys->es = es_out_Add( p_demux->out, &p_sys->fmt );
return VLC_SUCCESS;
demux_sys_t *p_sys = p_demux->p_sys;
screen_CloseCapture( p_demux );
+#ifdef SCREEN_MOUSE
+ if( p_sys->p_mouse )
+ picture_Release( p_sys->p_mouse );
+#endif
free( p_sys );
}
*****************************************************************************/
static int Control( demux_t *p_demux, int i_query, va_list args )
{
- vlc_bool_t *pb;
+ bool *pb;
int64_t *pi64;
switch( i_query )
case DEMUX_CAN_SEEK:
case DEMUX_CAN_CONTROL_PACE:
/* TODO */
- pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb = VLC_FALSE;
+ pb = (bool*)va_arg( args, bool * );
+ *pb = false;
return VLC_SUCCESS;
case DEMUX_GET_PTS_DELAY:
*pi64 = (int64_t)var_GetInteger( p_demux, "screen-caching" ) *1000;
return VLC_SUCCESS;
+ case DEMUX_GET_TIME:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = mdate();
+ return VLC_SUCCESS;
+
/* TODO implement others */
default:
return VLC_EGENERIC;
}
}
+
+#ifdef SCREEN_SUBSCREEN
+void FollowMouse( demux_sys_t *p_sys, int i_x, int i_y )
+{
+ i_x -= p_sys->i_width/2;
+ if( i_x < 0 ) i_x = 0;
+ p_sys->i_left = __MIN( (unsigned int)i_x,
+ p_sys->i_screen_width - p_sys->i_width );
+
+ i_y -= p_sys->i_height/2;
+ if( i_y < 0 ) i_y = 0;
+ p_sys->i_top = __MIN( (unsigned int)i_y,
+ p_sys->i_screen_height - p_sys->i_height );
+}
+#endif
+
+#ifdef SCREEN_MOUSE
+void RenderCursor( demux_t *p_demux, int i_x, int i_y,
+ uint8_t *p_dst )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ if( !p_sys->dst.i_planes )
+ picture_Setup( &p_sys->dst,
+ p_sys->fmt.video.i_chroma,
+ p_sys->fmt.video.i_width,
+ p_sys->fmt.video.i_height,
+ p_sys->fmt.video.i_aspect );
+ if( !p_sys->p_blend )
+ {
+ p_sys->p_blend = vlc_object_create( p_demux, sizeof(filter_t) );
+ if( p_sys->p_blend )
+ {
+ es_format_Init( &p_sys->p_blend->fmt_in, VIDEO_ES,
+ VLC_CODEC_RGBA );
+ p_sys->p_blend->fmt_in.video = p_sys->p_mouse->format;
+ p_sys->p_blend->fmt_out = p_sys->fmt;
+ p_sys->p_blend->p_module =
+ module_need( p_sys->p_blend, "video blending", NULL, false );
+ if( !p_sys->p_blend->p_module )
+ {
+ msg_Err( p_demux, "Could not load video blending module" );
+ vlc_object_detach( p_sys->p_blend );
+ vlc_object_release( p_sys->p_blend );
+ p_sys->p_blend = NULL;
+ }
+ }
+ }
+ if( p_sys->p_blend )
+ {
+ p_sys->dst.p->p_pixels = p_dst;
+ p_sys->p_blend->pf_video_blend( p_sys->p_blend,
+ &p_sys->dst,
+ p_sys->p_mouse,
+#ifdef SCREEN_SUBSCREEN
+ i_x-p_sys->i_left,
+#else
+ i_x,
+#endif
+#ifdef SCREEN_SUBSCREEN
+ i_y-p_sys->i_top,
+#else
+ i_y,
+#endif
+ 255 );
+ }
+ else
+ {
+ picture_Release( p_sys->p_mouse );
+ p_sys->p_mouse = NULL;
+ }
+}
+#endif
projects / vlc / blobdiff