lirc.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:7k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * lirc.c : lirc module for vlc
- *****************************************************************************
- * Copyright (C) 2003-2005 the VideoLAN team
- * $Id: 8b3325768ce4dab32bc3baede2949c9e4939c461 $
- *
- * Author: 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 <fcntl.h>
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_interface.h>
- #include <vlc_osd.h>
- #ifdef HAVE_POLL
- # include <poll.h>
- #endif
- #include <lirc/lirc_client.h>
- #define LIRC_TEXT N_("Change the lirc configuration file.")
- #define LIRC_LONGTEXT N_(
- "Tell lirc to read this configuration file. By default it "
- "searches in the users home directory." )
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- vlc_module_begin ()
- set_shortname( N_("Infrared") )
- set_category( CAT_INTERFACE )
- set_subcategory( SUBCAT_INTERFACE_CONTROL )
- set_description( N_("Infrared remote control interface") )
- set_capability( "interface", 0 )
- set_callbacks( Open, Close )
- add_string( "lirc-file", NULL, NULL,
- LIRC_TEXT, LIRC_LONGTEXT, true )
- vlc_module_end ()
- /*****************************************************************************
- * intf_sys_t: description and status of FB interface
- *****************************************************************************/
- struct intf_sys_t
- {
- char *psz_file;
- struct lirc_config *config;
- int i_fd;
- };
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static void Run( intf_thread_t * );
- static int Process( intf_thread_t * );
- /*****************************************************************************
- * Open: initialize interface
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- intf_sys_t *p_sys;
- /* Allocate instance and initialize some members */
- p_intf->p_sys = p_sys = malloc( sizeof( intf_sys_t ) );
- if( p_sys == NULL )
- return VLC_ENOMEM;
- p_intf->pf_run = Run;
- p_sys->psz_file = var_CreateGetNonEmptyString( p_intf, "lirc-file" );
- p_sys->i_fd = lirc_init( "vlc", 1 );
- if( p_sys->i_fd == -1 )
- {
- msg_Err( p_intf, "lirc initialisation failed" );
- goto exit;
- }
- /* We want polling */
- fcntl( p_sys->i_fd, F_SETFL, fcntl( p_sys->i_fd, F_GETFL ) | O_NONBLOCK );
- /* */
- if( lirc_readconfig( p_sys->psz_file, &p_sys->config, NULL ) != 0 )
- {
- msg_Err( p_intf, "failure while reading lirc config" );
- goto exit;
- }
- return VLC_SUCCESS;
- exit:
- if( p_sys->i_fd != -1 )
- lirc_deinit();
- free( p_sys->psz_file );
- free( p_sys );
- return VLC_EGENERIC;
- }
- /*****************************************************************************
- * Close: destroy interface
- *****************************************************************************/
- static void Close( vlc_object_t *p_this )
- {
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- intf_sys_t *p_sys = p_intf->p_sys;
- /* Destroy structure */
- lirc_freeconfig( p_sys->config );
- lirc_deinit();
- free( p_sys->psz_file );
- free( p_sys );
- }
- /*****************************************************************************
- * Run: main loop
- *****************************************************************************/
- static void Run( intf_thread_t *p_intf )
- {
- intf_sys_t *p_sys = p_intf->p_sys;
- for( ;; )
- {
- /* Wait for data */
- struct pollfd ufd = { .fd = p_sys->i_fd, .events = POLLIN, .revents = 0 };
- if( poll( &ufd, 1, -1 ) == -1 )
- break;
- /* Process */
- int canc = vlc_savecancel();
- Process( p_intf );
- vlc_restorecancel(canc);
- }
- }
- static int Process( intf_thread_t *p_intf )
- {
- for( ;; )
- {
- char *code, *c;
- int i_ret = lirc_nextcode( &code );
- if( i_ret )
- return i_ret;
- if( code == NULL )
- return 0;
- while( vlc_object_alive( p_intf )
- && (lirc_code2char( p_intf->p_sys->config, code, &c ) == 0)
- && (c != NULL) )
- {
- vlc_value_t keyval;
- if( !strncmp( "key-", c, 4 ) )
- {
- keyval.i_int = config_GetInt( p_intf, c );
- var_Set( p_intf->p_libvlc, "key-pressed", keyval );
- }
- else if( !strncmp( "menu ", c, 5) )
- {
- if( !strncmp( c, "menu on", 7 ) ||
- !strncmp( c, "menu show", 9 ))
- osd_MenuShow( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu off", 8 ) ||
- !strncmp( c, "menu hide", 9 ) )
- osd_MenuHide( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu up", 7 ) )
- osd_MenuUp( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu down", 9 ) )
- osd_MenuDown( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu left", 9 ) )
- osd_MenuPrev( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu right", 10 ) )
- osd_MenuNext( VLC_OBJECT(p_intf) );
- else if( !strncmp( c, "menu select", 11 ) )
- osd_MenuActivate( VLC_OBJECT(p_intf) );
- else
- {
- msg_Err( p_intf, "Please provide one of the following parameters:" );
- msg_Err( p_intf, "[on|off|up|down|left|right|select]" );
- break;
- }
- }
- else
- {
- msg_Err( p_intf, "this doesn't appear to be a valid keycombo lirc sent us. Please look at the doc/lirc/example.lirc file in VLC" );
- break;
- }
- }
- free( code );
- }
- }