mirror of
https://code.videolan.org/videolan/vlc
synced 2024-07-25 09:41:30 +02:00
743 lines
22 KiB
C
743 lines
22 KiB
C
/*****************************************************************************
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* logo.c : logo video plugin for vlc
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*****************************************************************************
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* Copyright (C) 2003-2006 the VideoLAN team
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* $Id$
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*
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* Authors: Gildas Bazin <gbazin@videolan.org>
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* Simon Latapie <garf@videolan.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_filter.h>
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#include <vlc_url.h>
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#include <vlc_image.h>
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#ifdef LoadImage
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# undef LoadImage
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#endif
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define FILE_TEXT N_("Logo filenames")
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#define FILE_LONGTEXT N_("Full path of the image files to use. Format is " \
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"<image>[,<delay in ms>[,<alpha>]][;<image>[,<delay>[,<alpha>]]][;...]. " \
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"If you only have one file, simply enter its filename.")
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#define REPEAT_TEXT N_("Logo animation # of loops")
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#define REPEAT_LONGTEXT N_("Number of loops for the logo animation." \
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"-1 = continuous, 0 = disabled")
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#define DELAY_TEXT N_("Logo individual image time in ms")
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#define DELAY_LONGTEXT N_("Individual image display time of 0 - 60000 ms.")
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#define POSX_TEXT N_("X coordinate")
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#define POSX_LONGTEXT N_("X coordinate of the logo. You can move the logo " \
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"by left-clicking it." )
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#define POSY_TEXT N_("Y coordinate")
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#define POSY_LONGTEXT N_("Y coordinate of the logo. You can move the logo " \
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"by left-clicking it." )
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#define OPACITY_TEXT N_("Opacity of the logo")
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#define OPACITY_LONGTEXT N_("Logo opacity value " \
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"(from 0 for full transparency to 255 for full opacity)." )
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#define POS_TEXT N_("Logo position")
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#define POS_LONGTEXT N_( \
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"Enforce the logo position on the video " \
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"(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
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"also use combinations of these values, eg 6 = top-right).")
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#define LOGO_HELP N_("Use a local picture as logo on the video")
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#define CFG_PREFIX "logo-"
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static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
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static const char *const ppsz_pos_descriptions[] =
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{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
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N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
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static int OpenSub ( vlc_object_t * );
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static int OpenVideo( vlc_object_t * );
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static void Close ( vlc_object_t * );
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vlc_module_begin ()
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set_category( CAT_VIDEO )
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set_subcategory( SUBCAT_VIDEO_SUBPIC )
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set_help(LOGO_HELP)
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set_capability( "sub source", 0 )
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set_callbacks( OpenSub, Close )
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set_description( N_("Logo sub source") )
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set_shortname( N_("Logo overlay") )
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add_shortcut( "logo" )
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add_loadfile( CFG_PREFIX "file", NULL, FILE_TEXT, FILE_LONGTEXT, false )
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add_integer( CFG_PREFIX "x", -1, POSX_TEXT, POSX_LONGTEXT, true )
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add_integer( CFG_PREFIX "y", -1, POSY_TEXT, POSY_LONGTEXT, true )
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/* default to 1000 ms per image, continuously cycle through them */
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add_integer( CFG_PREFIX "delay", 1000, DELAY_TEXT, DELAY_LONGTEXT, true )
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add_integer( CFG_PREFIX "repeat", -1, REPEAT_TEXT, REPEAT_LONGTEXT, true )
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add_integer_with_range( CFG_PREFIX "opacity", 255, 0, 255,
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OPACITY_TEXT, OPACITY_LONGTEXT, false )
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add_integer( CFG_PREFIX "position", -1, POS_TEXT, POS_LONGTEXT, false )
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change_integer_list( pi_pos_values, ppsz_pos_descriptions )
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/* video output filter submodule */
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add_submodule ()
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set_capability( "video filter2", 0 )
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set_callbacks( OpenVideo, Close )
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set_description( N_("Logo video filter") )
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add_shortcut( "logo" )
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vlc_module_end ()
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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/**
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* Structure to hold the set of individual logo image names, times,
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* transparencies
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*/
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typedef struct
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{
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int i_delay; /* -1 means use default delay */
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int i_alpha; /* -1 means use default alpha */
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picture_t *p_pic;
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} logo_t;
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/**
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* Logo list structure.
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*/
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typedef struct
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{
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logo_t *p_logo; /* the parsing's result */
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unsigned int i_count; /* the number of logo images to be displayed */
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int i_repeat; /* how often to repeat the images, image time in ms */
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mtime_t i_next_pic; /* when to bring up a new logo image */
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unsigned int i_counter; /* index into the list of logo images */
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int i_delay; /* default delay (0 - 60000 ms) */
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int i_alpha; /* default alpha */
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} logo_list_t;
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/**
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* Private logo data holder
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*/
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struct filter_sys_t
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{
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filter_t *p_blend;
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vlc_mutex_t lock;
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logo_list_t list;
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int i_pos;
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int i_pos_x;
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int i_pos_y;
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bool b_absolute;
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/* On the fly control variable */
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bool b_spu_update;
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/* */
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bool b_mouse_grab;
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};
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static const char *const ppsz_filter_options[] = {
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"file", "x", "y", "delay", "repeat", "opacity", "position", NULL
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};
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static const char *const ppsz_filter_callbacks[] = {
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"logo-file",
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"logo-x",
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"logo-y",
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"logo-position",
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"logo-opacity",
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"logo-repeat",
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NULL
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};
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static int OpenCommon( vlc_object_t *, bool b_sub );
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static subpicture_t *FilterSub( filter_t *, mtime_t );
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static picture_t *FilterVideo( filter_t *, picture_t * );
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static int Mouse( filter_t *, vlc_mouse_t *, const vlc_mouse_t *, const vlc_mouse_t * );
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static int LogoCallback( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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static void LogoListLoad( vlc_object_t *, logo_list_t *, const char * );
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static void LogoListUnload( logo_list_t * );
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static logo_t *LogoListNext( logo_list_t *p_list, mtime_t i_date );
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static logo_t *LogoListCurrent( logo_list_t *p_list );
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/**
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* Open the sub source
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*/
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static int OpenSub( vlc_object_t *p_this )
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{
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return OpenCommon( p_this, true );
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}
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/**
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* Open the video filter
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*/
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static int OpenVideo( vlc_object_t *p_this )
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{
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return OpenCommon( p_this, false );
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}
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/**
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* Common open function
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*/
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static int OpenCommon( vlc_object_t *p_this, bool b_sub )
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{
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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys;
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char *psz_filename;
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/* */
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if( !b_sub && !es_format_IsSimilar( &p_filter->fmt_in, &p_filter->fmt_out ) )
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{
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msg_Err( p_filter, "Input and output format does not match" );
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return VLC_EGENERIC;
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}
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/* */
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p_filter->p_sys = p_sys = malloc( sizeof( *p_sys ) );
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if( !p_sys )
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return VLC_ENOMEM;
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/* */
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p_sys->p_blend = NULL;
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if( !b_sub )
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{
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p_sys->p_blend = filter_NewBlend( VLC_OBJECT(p_filter),
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&p_filter->fmt_in.video );
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if( !p_sys->p_blend )
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{
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free( p_sys );
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return VLC_EGENERIC;
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}
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}
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/* */
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config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
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p_filter->p_cfg );
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/* */
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logo_list_t *p_list = &p_sys->list;
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psz_filename = var_CreateGetStringCommand( p_filter, "logo-file" );
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if( !psz_filename )
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{
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if( p_sys->p_blend )
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filter_DeleteBlend( p_sys->p_blend );
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free( p_sys );
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return VLC_ENOMEM;
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}
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if( *psz_filename == '\0' )
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msg_Warn( p_this, "no logo file specified" );
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p_list->i_alpha = var_CreateGetIntegerCommand( p_filter, "logo-opacity");
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p_list->i_alpha = VLC_CLIP( p_list->i_alpha, 0, 255 );
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p_list->i_delay = var_CreateGetIntegerCommand( p_filter, "logo-delay" );
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p_list->i_repeat = var_CreateGetIntegerCommand( p_filter, "logo-repeat" );
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p_sys->i_pos = var_CreateGetIntegerCommand( p_filter, "logo-position" );
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p_sys->i_pos_x = var_CreateGetIntegerCommand( p_filter, "logo-x" );
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p_sys->i_pos_y = var_CreateGetIntegerCommand( p_filter, "logo-y" );
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/* Ignore aligment if a position is given for video filter */
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if( !b_sub && p_sys->i_pos_x >= 0 && p_sys->i_pos_y >= 0 )
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p_sys->i_pos = 0;
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vlc_mutex_init( &p_sys->lock );
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LogoListLoad( p_this, p_list, psz_filename );
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p_sys->b_spu_update = true;
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p_sys->b_mouse_grab = false;
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for( int i = 0; ppsz_filter_callbacks[i]; i++ )
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var_AddCallback( p_filter, ppsz_filter_callbacks[i],
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LogoCallback, p_sys );
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/* Misc init */
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if( b_sub )
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{
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p_filter->pf_sub_source = FilterSub;
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}
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else
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{
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p_filter->pf_video_filter = FilterVideo;
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p_filter->pf_video_mouse = Mouse;
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}
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free( psz_filename );
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return VLC_SUCCESS;
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}
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/**
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* Common close function
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*/
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static void Close( vlc_object_t *p_this )
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{
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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys = p_filter->p_sys;
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for( int i = 0; ppsz_filter_callbacks[i]; i++ )
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var_DelCallback( p_filter, ppsz_filter_callbacks[i],
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LogoCallback, p_sys );
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if( p_sys->p_blend )
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filter_DeleteBlend( p_sys->p_blend );
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vlc_mutex_destroy( &p_sys->lock );
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LogoListUnload( &p_sys->list );
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free( p_sys );
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}
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/**
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* Sub source
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*/
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static subpicture_t *FilterSub( filter_t *p_filter, mtime_t date )
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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logo_list_t *p_list = &p_sys->list;
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subpicture_t *p_spu;
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subpicture_region_t *p_region;
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video_format_t fmt;
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picture_t *p_pic;
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logo_t *p_logo;
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vlc_mutex_lock( &p_sys->lock );
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/* Basic test: b_spu_update occurs on a dynamic change,
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& i_next_pic is the general timer, when to
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look at updating the logo image */
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if( ( !p_sys->b_spu_update && p_list->i_next_pic > date ) ||
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!p_list->i_repeat )
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{
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vlc_mutex_unlock( &p_sys->lock );
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return NULL;
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}
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/* adjust index to the next logo */
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p_logo = LogoListNext( p_list, date );
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p_sys->b_spu_update = false;
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p_pic = p_logo->p_pic;
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/* Allocate the subpicture internal data. */
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p_spu = filter_NewSubpicture( p_filter );
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if( !p_spu )
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goto exit;
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p_spu->b_absolute = p_sys->b_absolute;
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p_spu->i_start = date;
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p_spu->i_stop = 0;
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p_spu->b_ephemer = true;
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/* Send an empty subpicture to clear the display when needed */
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if( p_list->i_repeat != -1 && p_list->i_counter == 0 )
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{
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p_list->i_repeat--;
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if( p_list->i_repeat == 0 )
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goto exit;
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}
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if( !p_pic || !p_logo->i_alpha ||
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( p_logo->i_alpha == -1 && !p_list->i_alpha ) )
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goto exit;
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/* Create new SPU region */
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memset( &fmt, 0, sizeof(video_format_t) );
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fmt.i_chroma = VLC_CODEC_YUVA;
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fmt.i_sar_num = fmt.i_sar_den = 1;
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fmt.i_width = fmt.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
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fmt.i_height = fmt.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
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fmt.i_x_offset = fmt.i_y_offset = 0;
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p_region = subpicture_region_New( &fmt );
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if( !p_region )
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{
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msg_Err( p_filter, "cannot allocate SPU region" );
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p_filter->pf_sub_buffer_del( p_filter, p_spu );
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p_spu = NULL;
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goto exit;
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}
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/* */
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picture_Copy( p_region->p_picture, p_pic );
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/* where to locate the logo: */
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if( p_sys->i_pos < 0 )
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{ /* set to an absolute xy */
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p_region->i_align = SUBPICTURE_ALIGN_RIGHT | SUBPICTURE_ALIGN_TOP;
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p_spu->b_absolute = true;
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}
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else
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{ /* set to one of the 9 relative locations */
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p_region->i_align = p_sys->i_pos;
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p_spu->b_absolute = false;
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}
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p_region->i_x = p_sys->i_pos_x;
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p_region->i_y = p_sys->i_pos_y;
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p_spu->p_region = p_region;
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p_spu->i_alpha = ( p_logo->i_alpha != -1 ?
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p_logo->i_alpha : p_list->i_alpha );
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exit:
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vlc_mutex_unlock( &p_sys->lock );
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return p_spu;
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}
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/**
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* Video filter
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*/
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static picture_t *FilterVideo( filter_t *p_filter, picture_t *p_src )
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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logo_list_t *p_list = &p_sys->list;
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picture_t *p_dst = filter_NewPicture( p_filter );
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if( !p_dst )
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goto exit;
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picture_Copy( p_dst, p_src );
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/* */
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vlc_mutex_lock( &p_sys->lock );
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logo_t *p_logo;
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if( p_list->i_next_pic < p_src->date )
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p_logo = LogoListNext( p_list, p_src->date );
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else
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p_logo = LogoListCurrent( p_list );
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/* */
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const picture_t *p_pic = p_logo->p_pic;
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if( p_pic )
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{
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const video_format_t *p_fmt = &p_pic->format;
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const int i_dst_w = p_filter->fmt_out.video.i_visible_width;
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const int i_dst_h = p_filter->fmt_out.video.i_visible_height;
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if( p_sys->i_pos )
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{
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if( p_sys->i_pos & SUBPICTURE_ALIGN_BOTTOM )
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{
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p_sys->i_pos_y = i_dst_h - p_fmt->i_visible_height;
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}
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else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_TOP) )
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{
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p_sys->i_pos_y = ( i_dst_h - p_fmt->i_visible_height ) / 2;
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}
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else
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{
|
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p_sys->i_pos_y = 0;
|
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}
|
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if( p_sys->i_pos & SUBPICTURE_ALIGN_RIGHT )
|
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{
|
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p_sys->i_pos_x = i_dst_w - p_fmt->i_visible_width;
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}
|
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else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_LEFT) )
|
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{
|
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p_sys->i_pos_x = ( i_dst_w - p_fmt->i_visible_width ) / 2;
|
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}
|
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else
|
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{
|
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p_sys->i_pos_x = 0;
|
|
}
|
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}
|
|
|
|
/* */
|
|
const int i_alpha = p_logo->i_alpha != -1 ? p_logo->i_alpha : p_list->i_alpha;
|
|
if( filter_ConfigureBlend( p_sys->p_blend, i_dst_w, i_dst_h, p_fmt ) ||
|
|
filter_Blend( p_sys->p_blend, p_dst, p_sys->i_pos_x, p_sys->i_pos_y,
|
|
p_pic, i_alpha ) )
|
|
{
|
|
msg_Err( p_filter, "failed to blend a picture" );
|
|
}
|
|
}
|
|
vlc_mutex_unlock( &p_sys->lock );
|
|
|
|
exit:
|
|
picture_Release( p_src );
|
|
return p_dst;
|
|
}
|
|
|
|
static int Mouse( filter_t *p_filter, vlc_mouse_t *p_mouse,
|
|
const vlc_mouse_t *p_old, const vlc_mouse_t *p_new )
|
|
{
|
|
filter_sys_t *p_sys = p_filter->p_sys;
|
|
|
|
vlc_mutex_lock( &p_sys->lock );
|
|
logo_t *p_logo = LogoListCurrent( &p_sys->list );
|
|
const picture_t *p_pic = p_logo->p_pic;
|
|
|
|
if( p_pic )
|
|
{
|
|
const video_format_t *p_fmt = &p_pic->format;
|
|
const int i_logo_w = p_fmt->i_visible_width;
|
|
const int i_logo_h = p_fmt->i_visible_height;
|
|
|
|
/* Check if we are over the logo */
|
|
const bool b_over = p_new->i_x >= p_sys->i_pos_x &&
|
|
p_new->i_x < p_sys->i_pos_x + i_logo_w &&
|
|
p_new->i_y >= p_sys->i_pos_y &&
|
|
p_new->i_y < p_sys->i_pos_y + i_logo_h;
|
|
|
|
if( b_over && vlc_mouse_HasPressed( p_old, p_new, MOUSE_BUTTON_LEFT ) )
|
|
p_sys->b_mouse_grab = true;
|
|
else if( vlc_mouse_HasReleased( p_old, p_new, MOUSE_BUTTON_LEFT ) )
|
|
p_sys->b_mouse_grab = false;
|
|
|
|
if( p_sys->b_mouse_grab )
|
|
{
|
|
int i_dx, i_dy;
|
|
vlc_mouse_GetMotion( &i_dx, &i_dy, p_old, p_new );
|
|
p_sys->i_pos_x = VLC_CLIP( p_sys->i_pos_x + i_dx, 0,
|
|
p_filter->fmt_in.video.i_width - i_logo_w );
|
|
p_sys->i_pos_y = VLC_CLIP( p_sys->i_pos_y + i_dy, 0,
|
|
p_filter->fmt_in.video.i_height - i_logo_h );
|
|
|
|
/* object under mouse has moved */
|
|
var_SetBool( p_filter->p_parent, "mouse-object", true );
|
|
}
|
|
else if( b_over )
|
|
{
|
|
/* object under mouse stoped moving */
|
|
var_SetBool( p_filter->p_parent, "mouse-object", false );
|
|
}
|
|
|
|
if( p_sys->b_mouse_grab || b_over )
|
|
{
|
|
vlc_mutex_unlock( &p_sys->lock );
|
|
return VLC_EGENERIC;
|
|
}
|
|
}
|
|
vlc_mutex_unlock( &p_sys->lock );
|
|
|
|
*p_mouse = *p_new;
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Callback to update params on the fly
|
|
*****************************************************************************/
|
|
static int LogoCallback( vlc_object_t *p_this, char const *psz_var,
|
|
vlc_value_t oldval, vlc_value_t newval, void *p_data )
|
|
{
|
|
VLC_UNUSED(oldval);
|
|
filter_sys_t *p_sys = (filter_sys_t *)p_data;
|
|
logo_list_t *p_list = &p_sys->list;
|
|
|
|
vlc_mutex_lock( &p_sys->lock );
|
|
if( !strcmp( psz_var, "logo-file" ) )
|
|
{
|
|
LogoListUnload( p_list );
|
|
LogoListLoad( p_this, p_list, newval.psz_string );
|
|
}
|
|
else if ( !strcmp( psz_var, "logo-x" ) )
|
|
{
|
|
p_sys->i_pos_x = newval.i_int;
|
|
}
|
|
else if ( !strcmp( psz_var, "logo-y" ) )
|
|
{
|
|
p_sys->i_pos_y = newval.i_int;
|
|
}
|
|
else if ( !strcmp( psz_var, "logo-position" ) )
|
|
{
|
|
p_sys->i_pos = newval.i_int;
|
|
}
|
|
else if ( !strcmp( psz_var, "logo-opacity" ) )
|
|
{
|
|
p_list->i_alpha = VLC_CLIP( newval.i_int, 0, 255 );
|
|
}
|
|
else if ( !strcmp( psz_var, "logo-repeat" ) )
|
|
{
|
|
p_list->i_repeat = newval.i_int;
|
|
}
|
|
p_sys->b_spu_update = true;
|
|
vlc_mutex_unlock( &p_sys->lock );
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* It loads the logo image into memory.
|
|
*/
|
|
static picture_t *LoadImage( vlc_object_t *p_this, const char *psz_filename )
|
|
{
|
|
if( !psz_filename )
|
|
return NULL;
|
|
|
|
video_format_t fmt_in;
|
|
video_format_Init( &fmt_in, 0 );
|
|
|
|
video_format_t fmt_out;
|
|
video_format_Init( &fmt_out, VLC_CODEC_YUVA );
|
|
|
|
image_handler_t *p_image = image_HandlerCreate( p_this );
|
|
if( !p_image )
|
|
return NULL;
|
|
|
|
char *psz_url = make_URI( psz_filename, NULL );
|
|
picture_t *p_pic = image_ReadUrl( p_image, psz_url, &fmt_in, &fmt_out );
|
|
free( psz_url );
|
|
image_HandlerDelete( p_image );
|
|
|
|
return p_pic;
|
|
}
|
|
|
|
/**
|
|
* It loads the logo images into memory.
|
|
*
|
|
* Read the logo-file input switch, obtaining a list of images and
|
|
* associated durations and transparencies. Store the image(s), and
|
|
* times. An image without a stated time or opacity will use the
|
|
* logo-delay and logo-opacity values.
|
|
*/
|
|
static void LogoListLoad( vlc_object_t *p_this, logo_list_t *p_logo_list,
|
|
const char *psz_filename )
|
|
{
|
|
char *psz_list; /* the list: <logo>[,[<delay>[,[<alpha>]]]][;...] */
|
|
char *psz_original;
|
|
unsigned int i;
|
|
logo_t *p_logo; /* the parsing's result */
|
|
|
|
p_logo_list->i_counter = 0;
|
|
p_logo_list->i_next_pic = 0;
|
|
|
|
psz_original = psz_list = strdup( psz_filename );
|
|
if( !psz_list )
|
|
abort();
|
|
|
|
/* Count the number logos == number of ';' + 1 */
|
|
p_logo_list->i_count = 1;
|
|
for( i = 0; i < strlen( psz_list ); i++ )
|
|
{
|
|
if( psz_list[i] == ';' )
|
|
p_logo_list->i_count++;
|
|
}
|
|
|
|
p_logo_list->p_logo =
|
|
p_logo = calloc( p_logo_list->i_count, sizeof(*p_logo) );
|
|
if( !p_logo )
|
|
abort();
|
|
|
|
/* Fill the data */
|
|
for( i = 0; i < p_logo_list->i_count; i++ )
|
|
{
|
|
char *p_c = strchr( psz_list, ';' );
|
|
char *p_c2 = strchr( psz_list, ',' );
|
|
|
|
p_logo[i].i_alpha = -1; /* use default settings */
|
|
p_logo[i].i_delay = -1; /* use default settings */
|
|
|
|
if( p_c2 && ( p_c2 < p_c || !p_c ) )
|
|
{
|
|
/* <logo>,<delay>[,<alpha>] type */
|
|
if( p_c2[1] != ',' && p_c2[1] != ';' && p_c2[1] != '\0' )
|
|
p_logo[i].i_delay = atoi( p_c2+1 );
|
|
*p_c2 = '\0';
|
|
if( ( p_c2 = strchr( p_c2+1, ',' ) )
|
|
&& ( p_c2 < p_c || !p_c ) && p_c2[1] != ';' && p_c2[1] != '\0' )
|
|
p_logo[i].i_alpha = atoi( p_c2 + 1 );
|
|
}
|
|
else
|
|
{
|
|
/* <logo> type */
|
|
if( p_c )
|
|
*p_c = '\0';
|
|
}
|
|
|
|
msg_Dbg( p_this, "logo file name %s, delay %d, alpha %d",
|
|
psz_list, p_logo[i].i_delay, p_logo[i].i_alpha );
|
|
p_logo[i].p_pic = LoadImage( p_this, psz_list );
|
|
if( !p_logo[i].p_pic )
|
|
{
|
|
msg_Warn( p_this, "error while loading logo %s, will be skipped",
|
|
psz_list );
|
|
}
|
|
|
|
if( p_c )
|
|
psz_list = &p_c[1];
|
|
}
|
|
|
|
/* initialize so that on the first update it will wrap back to 0 */
|
|
p_logo_list->i_counter = p_logo_list->i_count - 1;
|
|
|
|
free( psz_original );
|
|
}
|
|
|
|
/**
|
|
* Unload a list of logo and release associated ressources.
|
|
*/
|
|
static void LogoListUnload( logo_list_t *p_list )
|
|
{
|
|
for( unsigned i = 0; i < p_list->i_count; i++ )
|
|
{
|
|
logo_t *p_logo = &p_list->p_logo[i];
|
|
|
|
if( p_logo->p_pic )
|
|
picture_Release( p_logo->p_pic );
|
|
}
|
|
free( p_list->p_logo );
|
|
}
|
|
|
|
/**
|
|
* Go to the next logo and return its pointer.
|
|
*/
|
|
static logo_t *LogoListNext( logo_list_t *p_list, mtime_t i_date )
|
|
{
|
|
p_list->i_counter = ( p_list->i_counter + 1 ) % p_list->i_count;
|
|
|
|
logo_t *p_logo = LogoListCurrent( p_list );
|
|
|
|
p_list->i_next_pic = i_date + ( p_logo->i_delay != -1 ?
|
|
p_logo->i_delay : p_list->i_delay ) * 1000;
|
|
return p_logo;
|
|
}
|
|
/**
|
|
* Return the current logo pointer
|
|
*/
|
|
static logo_t *LogoListCurrent( logo_list_t *p_list )
|
|
{
|
|
return &p_list->p_logo[p_list->i_counter];
|
|
}
|
|
|