Commit 919eb81b authored by Adrien Maglo's avatar Adrien Maglo Committed by Laurent Aimar

Add a function to display EPG event information for the current program of an input_item_t.

Signed-off-by: default avatarLaurent Aimar <fenrir@videolan.org>
parent 82954f97
......@@ -635,6 +635,8 @@ VLC_EXPORT( int, vout_ShowTextRelative, ( vout_thread_t *, int, char *, const te
VLC_EXPORT( int, vout_ShowTextAbsolute, ( vout_thread_t *, int, const char *, const text_style_t *, int, int, int, mtime_t, mtime_t ) );
VLC_EXPORT( int, vout_OSDEpg, ( vout_thread_t *, input_item_t * ) );
/**
* Write an informative message at the default location,
* for the default duration and only if the OSD option is enabled.
......
......@@ -379,6 +379,7 @@ SOURCES_libvlc_common = \
video_output/vout_pictures.c \
video_output/vout_pictures.h \
video_output/video_text.c \
video_output/video_epg.c \
video_output/video_widgets.c \
video_output/vout_subpictures.c \
video_output/window.c \
......
......@@ -606,6 +606,7 @@ vout_GetSpu
vout_LinkPicture
vout_OSDIcon
__vout_OSDMessage
vout_OSDEpg
vout_OSDSlider
vout_PlacePicture
__vout_Request
......
/*****************************************************************************
* video_epg.c : EPG manipulation functions
*****************************************************************************
* Copyright (C) 2010 Adrien Maglo
*
* Author: Adrien Maglo <magsoft@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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_vout.h>
#include <vlc_block.h>
#include <vlc_filter.h>
#include <vlc_osd.h>
#include <vlc_events.h>
#include <vlc_input_item.h>
#include <vlc_epg.h>
/* Layout percentage defines */
#define EPG_TOP 0.7
#define EPG_LEFT 0.1
#define EPG_NAME_SIZE 0.05
#define EPG_PROGRAM_SIZE 0.03
#define NO_EPG N_( "No EPG found for this program." )
static subpicture_region_t * vout_OSDEpgSlider( vout_thread_t *p_vout,
int i_x, int i_y,
int i_width, int i_height,
float f_ratio )
{
video_format_t fmt;
subpicture_region_t *p_region;
/* Create a new subpicture region */
video_format_Init( &fmt, VLC_CODEC_YUVA );
fmt.i_width = fmt.i_visible_width = i_width;
fmt.i_height = fmt.i_visible_height = i_height;
p_region = subpicture_region_New( &fmt );
if( !p_region )
{
msg_Err( p_vout, "Cannot allocate SPU region." );
return NULL;
}
p_region->i_x = i_x;
p_region->i_y = i_y;
picture_t *p_picture = p_region->p_picture;
f_ratio = __MIN( __MAX( f_ratio, 0 ), 1 );
int i_filled_part_width = f_ratio * i_width;
for( int j = 0; j < i_height; j++ )
{
for( int i = 0; i < i_width; i++ )
{
#define WRITE_COMP( plane, value ) \
p_picture->p[plane].p_pixels[p_picture->p[plane].i_pitch * j + i] = value
/* Draw the slider. */
bool is_outline = j == 0 || j == i_height - 1
|| i == 0 || i == i_width - 1;
WRITE_COMP( 0, is_outline ? 0x00 : 0xff );
WRITE_COMP( 1, 0x80 );
WRITE_COMP( 2, 0x80 );
/* We can see the video through the part of the slider
which corresponds to the leaving time. */
bool is_border = j < 3 || j > i_height - 4
|| i < 3 || i > i_width - 4
|| i < i_filled_part_width;
WRITE_COMP( 3, is_border ? 0xff : 0x00 );
#undef WRITE_COMP
}
}
return p_region;
}
static subpicture_region_t * vout_OSDEpgText( vout_thread_t *p_vout,
const char *psz_string,
int i_x, int i_y,
int i_size, uint32_t i_color )
{
video_format_t fmt;
subpicture_region_t *p_region;
if( !psz_string )
return NULL;
/* Create a new subpicture region */
video_format_Init( &fmt, VLC_CODEC_TEXT );
p_region = subpicture_region_New( &fmt );
if( !p_region )
{
msg_Err( p_vout, "Cannot allocate SPU region." );
return NULL;
}
/* Set subpicture parameters */
p_region->psz_text = strdup( psz_string );
p_region->i_align = 0;
p_region->i_x = i_x;
p_region->i_y = i_y;
/* Set text style */
p_region->p_style = text_style_New();
if( p_region->p_style )
{
p_region->p_style->i_font_size = i_size;
p_region->p_style->i_font_color = i_color;
p_region->p_style->i_font_alpha = 0;
}
return p_region;
}
static subpicture_region_t * vout_BuildOSDEpg( vout_thread_t *p_vout,
vlc_epg_t *p_epg,
int i_visible_width,
int i_visible_height )
{
subpicture_region_t *p_region_ret;
subpicture_region_t **pp_region = &p_region_ret;
time_t i_test = time( NULL );
/* Display the name of the channel. */
*pp_region = vout_OSDEpgText( p_vout,
p_epg->psz_name,
i_visible_width * EPG_LEFT,
i_visible_height * EPG_TOP,
i_visible_height * EPG_NAME_SIZE,
0x00ffffff );
if( !*pp_region )
return p_region_ret;
/* Display the name of the current program. */
pp_region = &(* pp_region)->p_next;
*pp_region = vout_OSDEpgText( p_vout, p_epg->p_current->psz_name,
i_visible_width * ( EPG_LEFT + 0.025 ),
i_visible_height * ( EPG_TOP + 0.05 ),
i_visible_height * EPG_PROGRAM_SIZE,
0x00ffffff );
if( !*pp_region )
return p_region_ret;
/* Display the current program time slider. */
pp_region = &(* pp_region)->p_next;
*pp_region = vout_OSDEpgSlider( p_vout,
i_visible_width * EPG_LEFT,
i_visible_height * ( EPG_TOP + 0.1 ),
i_visible_width * ( 1 - 2 * EPG_LEFT ),
i_visible_height * 0.05,
( i_test - p_epg->p_current->i_start )
/ (float)p_epg->p_current->i_duration );
if( !*pp_region )
return p_region_ret;
/* Format the hours of the beginning and the end of the current program. */
struct tm tm_start, tm_end;
time_t t_start = p_epg->p_current->i_start;
time_t t_end = p_epg->p_current->i_start + p_epg->p_current->i_duration;
localtime_r( &t_start, &tm_start );
localtime_r( &t_end, &tm_end );
char psz_start[128];
char psz_end[128];
snprintf( psz_start, sizeof(psz_start), "%2.2d:%2.2d",
tm_start.tm_hour, tm_start.tm_min );
snprintf( psz_end, sizeof(psz_end), "%2.2d:%2.2d",
tm_end.tm_hour, tm_end.tm_min );
/* Display those hours. */
pp_region = &(* pp_region)->p_next;
*pp_region = vout_OSDEpgText( p_vout, psz_start,
i_visible_width * ( EPG_LEFT + 0.02 ),
i_visible_height * ( EPG_TOP + 0.15 ),
i_visible_height * EPG_PROGRAM_SIZE,
0x00ffffff );
if( !*pp_region )
return p_region_ret;
pp_region = &(* pp_region)->p_next;
*pp_region = vout_OSDEpgText( p_vout, psz_end,
i_visible_width * ( 1 - EPG_LEFT - 0.085 ),
i_visible_height * ( EPG_TOP + 0.15 ),
i_visible_height * EPG_PROGRAM_SIZE,
0x00ffffff );
return p_region_ret;
}
/**
* \brief Show EPG information about the current program of an input item
* \param p_vout pointer to the vout the information is to be showed on
* \param p_input pointer to the input item the information is to be showed
*/
int vout_OSDEpg( vout_thread_t *p_vout, input_item_t *p_input )
{
subpicture_t *p_spu;
mtime_t i_now = mdate();
int i_visible_width = p_vout->fmt_in.i_width;
int i_visible_height = p_vout->fmt_in.i_height;
if( !p_input )
return VLC_EGENERIC;
p_spu = subpicture_New();
if( !p_spu )
return VLC_EGENERIC;
p_spu->i_channel = DEFAULT_CHAN;
p_spu->i_start = i_now;
p_spu->i_stop = i_now + 10000 * INT64_C(1000);
p_spu->b_ephemer = true;
p_spu->b_absolute = true;
p_spu->b_fade = false;
char *psz_now_playing = input_item_GetNowPlaying( p_input );
vlc_epg_t *p_epg = NULL;
vlc_mutex_lock( &p_input->lock );
/* Look for the current program EPG event */
for( int i = 0; i < p_input->i_epg; i++ )
{
vlc_epg_t *p_tmp = p_input->pp_epg[i];
if( p_tmp->p_current && p_tmp->p_current->psz_name
&& psz_now_playing != NULL
&& !strcmp( p_tmp->p_current->psz_name, psz_now_playing ) )
{
p_epg = vlc_epg_New( p_tmp->psz_name );
vlc_epg_Merge( p_epg, p_tmp );
break;
}
}
vlc_mutex_unlock( &p_input->lock );
if( p_epg != NULL )
{
/* Build the EPG event subpictures. */
p_spu->p_region = vout_BuildOSDEpg( p_vout, p_epg,
i_visible_width,
i_visible_height );
vlc_epg_Delete( p_epg );
}
else
{
/* If no EPG event has been found, then display a warning message. */
p_spu->p_region = vout_OSDEpgText( p_vout, NO_EPG,
i_visible_width * EPG_LEFT,
i_visible_height * EPG_TOP,
i_visible_height * EPG_NAME_SIZE,
0x00ffffff );
}
spu_DisplaySubpicture( p_vout->p_spu, p_spu );
return VLC_SUCCESS;
}
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