mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
314 lines
12 KiB
C
314 lines
12 KiB
C
/*****************************************************************************
|
|
* time.c : time display video plugin for vlc
|
|
*****************************************************************************
|
|
* Copyright (C) 2003-2005 the VideoLAN team
|
|
* $Id$
|
|
*
|
|
* Authors: Sigmund Augdal Helberg <dnumgis@videolan.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 <time.h>
|
|
|
|
#include <vlc/vlc.h>
|
|
#include <vlc/vout.h>
|
|
|
|
#include "vlc_filter.h"
|
|
#include "vlc_block.h"
|
|
#include "vlc_osd.h"
|
|
|
|
/*****************************************************************************
|
|
* Local prototypes
|
|
*****************************************************************************/
|
|
static int CreateFilter ( vlc_object_t * );
|
|
static void DestroyFilter( vlc_object_t * );
|
|
static subpicture_t *Filter( filter_t *, mtime_t );
|
|
static int TimeCallback( vlc_object_t *p_this, char const *psz_var,
|
|
vlc_value_t oldval, vlc_value_t newval,
|
|
void *p_data );
|
|
static int pi_color_values[] = { 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
|
|
0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
|
|
0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
|
|
0x00000080, 0x000000FF, 0x0000FFFF};
|
|
static char *ppsz_color_descriptions[] = { N_("Default"), N_("Black"),
|
|
N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
|
|
N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
|
|
N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
|
|
N_("Aqua") };
|
|
|
|
/*****************************************************************************
|
|
* filter_sys_t: time filter descriptor
|
|
*****************************************************************************/
|
|
struct filter_sys_t
|
|
{
|
|
int i_xoff, i_yoff; /* offsets for the display string in the video window */
|
|
char *psz_format; /* time format string */
|
|
int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
|
|
text_style_t *p_style; /* font control */
|
|
|
|
time_t last_time;
|
|
};
|
|
|
|
#define MSG_TEXT N_("Time format string (%Y%m%d %H%M%S)")
|
|
#define MSG_LONGTEXT N_("Time format string (%Y = year, %m = month, %d = day, %H = hour, %M = minute, %S = second).")
|
|
#define POSX_TEXT N_("X offset")
|
|
#define POSX_LONGTEXT N_("X offset, from the left screen edge" )
|
|
#define POSY_TEXT N_("Y offset")
|
|
#define POSY_LONGTEXT N_("Y offset, down from the top" )
|
|
#define OPACITY_TEXT N_("Opacity")
|
|
#define OPACITY_LONGTEXT N_("Opacity (inverse of transparency) of " \
|
|
"overlay text. 0 = transparent, 255 = totally opaque." )
|
|
|
|
#define SIZE_TEXT N_("Font size, pixels")
|
|
#define SIZE_LONGTEXT N_("Font size, in pixels. Default is -1 (use default " \
|
|
"font size)." )
|
|
|
|
#define COLOR_TEXT N_("Color")
|
|
#define COLOR_LONGTEXT N_("Color of the text that will be rendered on "\
|
|
"the video. This must be an hexadecimal (like HTML colors). The first two "\
|
|
"chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
|
|
" #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
|
|
|
|
#define POS_TEXT N_("Text position")
|
|
#define POS_LONGTEXT N_( \
|
|
"You can enforce the text position on the video " \
|
|
"(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
|
|
"also use combinations of these values, e.g. 6 = top-right).")
|
|
|
|
static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
|
|
static char *ppsz_pos_descriptions[] =
|
|
{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
|
|
N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
|
|
|
|
/*****************************************************************************
|
|
* Module descriptor
|
|
*****************************************************************************/
|
|
vlc_module_begin();
|
|
set_capability( "sub filter", 0 );
|
|
set_shortname( N_("Time overlay"));
|
|
set_category( CAT_VIDEO );
|
|
set_subcategory( SUBCAT_VIDEO_SUBPIC );
|
|
set_callbacks( CreateFilter, DestroyFilter );
|
|
add_string( "time-format", "%Y-%m-%d %H:%M:%S", NULL, MSG_TEXT,
|
|
MSG_LONGTEXT, VLC_TRUE );
|
|
add_integer( "time-x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_TRUE );
|
|
add_integer( "time-y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_TRUE );
|
|
add_integer( "time-position", 9, NULL, POS_TEXT, POS_LONGTEXT, VLC_FALSE );
|
|
/* 9 sets the default to bottom-left, minimizing jitter */
|
|
change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
|
|
add_integer_with_range( "time-opacity", 255, 0, 255, NULL,
|
|
OPACITY_TEXT, OPACITY_LONGTEXT, VLC_FALSE );
|
|
add_integer( "time-color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
|
|
VLC_FALSE );
|
|
change_integer_list( pi_color_values, ppsz_color_descriptions, 0 );
|
|
add_integer( "time-size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE );
|
|
set_description( _("Time display sub filter") );
|
|
add_shortcut( "time" );
|
|
vlc_module_end();
|
|
|
|
/*****************************************************************************
|
|
* CreateFilter: allocates time video filter
|
|
*****************************************************************************/
|
|
static int CreateFilter( vlc_object_t *p_this )
|
|
{
|
|
filter_t *p_filter = (filter_t *)p_this;
|
|
filter_sys_t *p_sys;
|
|
|
|
/* Allocate structure */
|
|
p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
|
|
if( p_sys == NULL )
|
|
{
|
|
msg_Err( p_filter, "out of memory" );
|
|
return VLC_ENOMEM;
|
|
}
|
|
|
|
p_sys->p_style = malloc( sizeof( text_style_t ) );
|
|
memcpy( p_sys->p_style, &default_text_style, sizeof( text_style_t ) );
|
|
|
|
/* Hook used for callback variables */
|
|
p_sys->i_xoff = var_CreateGetInteger( p_filter->p_libvlc , "time-x" );
|
|
p_sys->i_yoff = var_CreateGetInteger( p_filter->p_libvlc , "time-y" );
|
|
p_sys->psz_format = var_CreateGetString( p_filter->p_libvlc, "time-format" );
|
|
p_sys->i_pos = var_CreateGetInteger( p_filter->p_libvlc , "time-position" );
|
|
|
|
p_sys->p_style->i_font_alpha = 255 - var_CreateGetInteger( p_filter->p_libvlc , "time-opacity" );
|
|
p_sys->p_style->i_font_color = var_CreateGetInteger( p_filter->p_libvlc , "time-color" );
|
|
p_sys->p_style->i_font_size = var_CreateGetInteger( p_filter->p_libvlc , "time-size" );
|
|
|
|
var_AddCallback( p_filter->p_libvlc, "time-x", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-y", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-format", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-position", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-color", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-opacity", TimeCallback, p_sys );
|
|
var_AddCallback( p_filter->p_libvlc, "time-size", TimeCallback, p_sys );
|
|
|
|
/* Misc init */
|
|
p_filter->pf_sub_filter = Filter;
|
|
p_sys->last_time = ((time_t)-1);
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
/*****************************************************************************
|
|
* DestroyFilter: destroy logo video filter
|
|
*****************************************************************************/
|
|
static void DestroyFilter( vlc_object_t *p_this )
|
|
{
|
|
filter_t *p_filter = (filter_t *)p_this;
|
|
filter_sys_t *p_sys = p_filter->p_sys;
|
|
|
|
if( p_sys->p_style ) free( p_sys->p_style );
|
|
if( p_sys->psz_format ) free( p_sys->psz_format );
|
|
free( p_sys );
|
|
|
|
/* Delete the time variables */
|
|
var_Destroy( p_filter->p_libvlc , "time-format" );
|
|
var_Destroy( p_filter->p_libvlc , "time-x" );
|
|
var_Destroy( p_filter->p_libvlc , "time-y" );
|
|
var_Destroy( p_filter->p_libvlc , "time-position" );
|
|
var_Destroy( p_filter->p_libvlc , "time-color");
|
|
var_Destroy( p_filter->p_libvlc , "time-opacity");
|
|
var_Destroy( p_filter->p_libvlc , "time-size");
|
|
}
|
|
|
|
static char *FormatTime(char *tformat )
|
|
{
|
|
char buffer[255];
|
|
time_t curtime;
|
|
#if defined(HAVE_LOCALTIME_R)
|
|
struct tm loctime;
|
|
#else
|
|
struct tm *loctime;
|
|
#endif
|
|
|
|
/* Get the current time. */
|
|
curtime = time( NULL );
|
|
|
|
/* Convert it to local time representation. */
|
|
#if defined(HAVE_LOCALTIME_R)
|
|
localtime_r( &curtime, &loctime );
|
|
strftime( buffer, 255, tformat, &loctime );
|
|
#else
|
|
loctime = localtime( &curtime );
|
|
strftime( buffer, 255, tformat, loctime );
|
|
#endif
|
|
return strdup( buffer );
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Filter: the whole thing
|
|
****************************************************************************
|
|
* This function outputs subpictures at regular time intervals.
|
|
****************************************************************************/
|
|
static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
|
|
{
|
|
filter_sys_t *p_sys = p_filter->p_sys;
|
|
subpicture_t *p_spu;
|
|
video_format_t fmt;
|
|
|
|
if( p_sys->last_time == time( NULL ) ) return NULL;
|
|
|
|
p_spu = p_filter->pf_sub_buffer_new( p_filter );
|
|
if( !p_spu ) return NULL;
|
|
|
|
memset( &fmt, 0, sizeof(video_format_t) );
|
|
fmt.i_chroma = VLC_FOURCC('T','E','X','T');
|
|
fmt.i_aspect = 0;
|
|
fmt.i_width = fmt.i_height = 0;
|
|
fmt.i_x_offset = 0;
|
|
fmt.i_y_offset = 0;
|
|
p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
|
|
if( !p_spu->p_region )
|
|
{
|
|
p_filter->pf_sub_buffer_del( p_filter, p_spu );
|
|
return NULL;
|
|
}
|
|
|
|
p_sys->last_time = time( NULL );
|
|
|
|
p_spu->p_region->psz_text = FormatTime( p_sys->psz_format );
|
|
p_spu->i_start = date;
|
|
p_spu->i_stop = 0;
|
|
p_spu->b_ephemer = VLC_TRUE;
|
|
|
|
/* where to locate the string: */
|
|
if( p_sys->i_xoff < 0 || p_sys->i_yoff < 0 )
|
|
{ /* set to one of the 9 relative locations */
|
|
p_spu->i_flags = p_sys->i_pos;
|
|
p_spu->i_x = 0;
|
|
p_spu->i_y = 0;
|
|
p_spu->b_absolute = VLC_FALSE;
|
|
}
|
|
else
|
|
{ /* set to an absolute xy, referenced to upper left corner */
|
|
p_spu->i_flags = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
|
|
p_spu->i_x = p_sys->i_xoff;
|
|
p_spu->i_y = p_sys->i_yoff;
|
|
p_spu->b_absolute = VLC_TRUE;
|
|
}
|
|
p_spu->p_region->p_style = p_sys->p_style;
|
|
|
|
return p_spu;
|
|
}
|
|
/**********************************************************************
|
|
* Callback to update params on the fly
|
|
**********************************************************************/
|
|
static int TimeCallback( vlc_object_t *p_this, char const *psz_var,
|
|
vlc_value_t oldval, vlc_value_t newval,
|
|
void *p_data )
|
|
{
|
|
filter_sys_t *p_sys = (filter_sys_t *) p_data;
|
|
|
|
if( !strncmp( psz_var, "time-format", 11 ) )
|
|
{
|
|
if( p_sys->psz_format ) free( p_sys->psz_format );
|
|
p_sys->psz_format = strdup( newval.psz_string );
|
|
}
|
|
else if ( !strncmp( psz_var, "time-x", 6 ) )
|
|
{
|
|
p_sys->i_xoff = newval.i_int;
|
|
}
|
|
else if ( !strncmp( psz_var, "time-y", 6 ) )
|
|
{
|
|
p_sys->i_yoff = newval.i_int;
|
|
}
|
|
else if ( !strncmp( psz_var, "time-color", 8 ) ) /* "time-c" */
|
|
{
|
|
p_sys->p_style->i_font_color = newval.i_int;
|
|
}
|
|
else if ( !strncmp( psz_var, "time-opacity", 8 ) ) /* "time-o" */
|
|
{
|
|
p_sys->p_style->i_font_alpha = 255 - newval.i_int;
|
|
}
|
|
else if ( !strncmp( psz_var, "time-size", 6 ) )
|
|
{
|
|
p_sys->p_style->i_font_size = newval.i_int;
|
|
}
|
|
else if ( !strncmp( psz_var, "time-position", 8 ) )
|
|
/* willing to accept a match against time-pos */
|
|
{
|
|
p_sys->i_pos = newval.i_int;
|
|
p_sys->i_xoff = -1; /* force to relative positioning */
|
|
}
|
|
return VLC_SUCCESS;
|
|
}
|