From 919eb81be8b163b002a8a25eda800cf1bb107da8 Mon Sep 17 00:00:00 2001 From: Adrien Maglo Date: Mon, 1 Feb 2010 21:46:15 +0100 Subject: [PATCH] Add a function to display EPG event information for the current program of an input_item_t. Signed-off-by: Laurent Aimar --- include/vlc_osd.h | 2 + src/Makefile.am | 1 + src/libvlccore.sym | 1 + src/video_output/video_epg.c | 293 +++++++++++++++++++++++++++++++++++ 4 files changed, 297 insertions(+) create mode 100644 src/video_output/video_epg.c diff --git a/include/vlc_osd.h b/include/vlc_osd.h index 06ac47f790..d327fa16a7 100644 --- a/include/vlc_osd.h +++ b/include/vlc_osd.h @@ -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. diff --git a/src/Makefile.am b/src/Makefile.am index 116e0d25e4..9daa4c8285 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -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 \ diff --git a/src/libvlccore.sym b/src/libvlccore.sym index 97c82ad678..8bb2376f8b 100644 --- a/src/libvlccore.sym +++ b/src/libvlccore.sym @@ -606,6 +606,7 @@ vout_GetSpu vout_LinkPicture vout_OSDIcon __vout_OSDMessage +vout_OSDEpg vout_OSDSlider vout_PlacePicture __vout_Request diff --git a/src/video_output/video_epg.c b/src/video_output/video_epg.c new file mode 100644 index 0000000000..71843e0029 --- /dev/null +++ b/src/video_output/video_epg.c @@ -0,0 +1,293 @@ +/***************************************************************************** + * video_epg.c : EPG manipulation functions + ***************************************************************************** + * Copyright (C) 2010 Adrien Maglo + * + * Author: Adrien Maglo + * + * 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 +#include +#include +#include +#include +#include +#include +#include + + +/* 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; +} -- 2.39.2