mirror of https://code.videolan.org/videolan/vlc
558 lines
20 KiB
C
558 lines
20 KiB
C
/*****************************************************************************
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* vlc_plugin.h : Macros used from within a module.
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*****************************************************************************
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* Copyright (C) 2001-2006 VLC authors and VideoLAN
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* Copyright © 2007-2009 Rémi Denis-Courmont
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef LIBVLC_MODULES_MACROS_H
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# define LIBVLC_MODULES_MACROS_H 1
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/**
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* \file
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* This file implements plugin (module) macros used to define a vlc module.
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*/
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enum vlc_module_properties
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{
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VLC_MODULE_CREATE,
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VLC_CONFIG_CREATE,
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/* DO NOT EVER REMOVE, INSERT OR REPLACE ANY ITEM! It would break the ABI!
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* Append new items at the end ONLY. */
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VLC_MODULE_CPU_REQUIREMENT=0x100,
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VLC_MODULE_SHORTCUT,
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VLC_MODULE_CAPABILITY,
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VLC_MODULE_SCORE,
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VLC_MODULE_CB_OPEN,
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VLC_MODULE_CB_CLOSE,
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VLC_MODULE_NO_UNLOAD,
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VLC_MODULE_NAME,
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VLC_MODULE_SHORTNAME,
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VLC_MODULE_DESCRIPTION,
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VLC_MODULE_HELP,
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VLC_MODULE_TEXTDOMAIN,
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/* Insert new VLC_MODULE_* here */
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/* DO NOT EVER REMOVE, INSERT OR REPLACE ANY ITEM! It would break the ABI!
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* Append new items at the end ONLY. */
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VLC_CONFIG_NAME=0x1000,
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/* command line name (args=const char *) */
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VLC_CONFIG_VALUE,
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/* actual value (args=int64_t/double/const char *) */
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VLC_CONFIG_RANGE,
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/* minimum value (args=int64_t/double/const char * twice) */
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VLC_CONFIG_ADVANCED,
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/* enable advanced flag (args=none) */
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VLC_CONFIG_VOLATILE,
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/* don't write variable to storage (args=none) */
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VLC_CONFIG_PERSISTENT_OBSOLETE,
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/* unused (ignored) */
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VLC_CONFIG_PRIVATE,
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/* hide from user (args=none) */
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VLC_CONFIG_REMOVED,
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/* tag as no longer supported (args=none) */
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VLC_CONFIG_CAPABILITY,
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/* capability for a module or list thereof (args=const char*) */
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VLC_CONFIG_SHORTCUT,
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/* one-character (short) command line option name (args=char) */
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VLC_CONFIG_OLDNAME_OBSOLETE,
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/* unused (ignored) */
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VLC_CONFIG_SAFE,
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/* tag as modifiable by untrusted input item "sources" (args=none) */
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VLC_CONFIG_DESC,
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/* description (args=const char *, const char *, const char *) */
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VLC_CONFIG_LIST_OBSOLETE,
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/* unused (ignored) */
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VLC_CONFIG_ADD_ACTION_OBSOLETE,
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/* unused (ignored) */
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VLC_CONFIG_LIST,
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/* list of suggested values
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* (args=size_t, const <type> *, const char *const *) */
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VLC_CONFIG_LIST_CB,
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/* callback for suggested values
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* (args=const char *, size_t (*)(vlc_object_t *, <type> **, char ***)) */
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/* Insert new VLC_CONFIG_* here */
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};
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/* Configuration hint types */
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#define CONFIG_HINT_CATEGORY 0x02 /* Start of new category */
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#define CONFIG_HINT_USAGE 0x05 /* Usage information */
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#define CONFIG_CATEGORY 0x06 /* Set category */
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#define CONFIG_SUBCATEGORY 0x07 /* Set subcategory */
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#define CONFIG_SECTION 0x08 /* Start of new section */
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/* Configuration item types */
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#define CONFIG_ITEM_FLOAT 0x20 /* Float option */
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#define CONFIG_ITEM_INTEGER 0x40 /* Integer option */
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#define CONFIG_ITEM_RGB 0x41 /* RGB color option */
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#define CONFIG_ITEM_BOOL 0x60 /* Bool option */
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#define CONFIG_ITEM_STRING 0x80 /* String option */
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#define CONFIG_ITEM_PASSWORD 0x81 /* Password option (*) */
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#define CONFIG_ITEM_KEY 0x82 /* Hot key option */
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#define CONFIG_ITEM_MODULE 0x84 /* Module option */
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#define CONFIG_ITEM_MODULE_CAT 0x85 /* Module option */
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#define CONFIG_ITEM_MODULE_LIST 0x86 /* Module option */
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#define CONFIG_ITEM_MODULE_LIST_CAT 0x87 /* Module option */
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#define CONFIG_ITEM_LOADFILE 0x8C /* Read file option */
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#define CONFIG_ITEM_SAVEFILE 0x8D /* Written file option */
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#define CONFIG_ITEM_DIRECTORY 0x8E /* Directory option */
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#define CONFIG_ITEM_FONT 0x8F /* Font option */
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#define CONFIG_ITEM(x) (((x) & ~0xF) != 0)
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/* Categories and subcategories */
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#define CAT_INTERFACE 1
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#define SUBCAT_INTERFACE_GENERAL 101
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#define SUBCAT_INTERFACE_MAIN 102
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#define SUBCAT_INTERFACE_CONTROL 103
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#define SUBCAT_INTERFACE_HOTKEYS 104
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#define CAT_AUDIO 2
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#define SUBCAT_AUDIO_GENERAL 201
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#define SUBCAT_AUDIO_AOUT 202
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#define SUBCAT_AUDIO_AFILTER 203
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#define SUBCAT_AUDIO_VISUAL 204
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#define SUBCAT_AUDIO_MISC 205
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#define SUBCAT_AUDIO_RESAMPLER 206
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#define CAT_VIDEO 3
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#define SUBCAT_VIDEO_GENERAL 301
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#define SUBCAT_VIDEO_VOUT 302
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#define SUBCAT_VIDEO_VFILTER 303
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#define SUBCAT_VIDEO_SUBPIC 305
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#define SUBCAT_VIDEO_SPLITTER 306
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#define CAT_INPUT 4
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#define SUBCAT_INPUT_GENERAL 401
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#define SUBCAT_INPUT_ACCESS 402
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#define SUBCAT_INPUT_DEMUX 403
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#define SUBCAT_INPUT_VCODEC 404
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#define SUBCAT_INPUT_ACODEC 405
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#define SUBCAT_INPUT_SCODEC 406
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#define SUBCAT_INPUT_STREAM_FILTER 407
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#define CAT_SOUT 5
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#define SUBCAT_SOUT_GENERAL 501
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#define SUBCAT_SOUT_STREAM 502
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#define SUBCAT_SOUT_MUX 503
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#define SUBCAT_SOUT_ACO 504
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#define SUBCAT_SOUT_PACKETIZER 505
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#define SUBCAT_SOUT_VOD 507
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#define SUBCAT_SOUT_RENDERER 508
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#define CAT_ADVANCED 6
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#define SUBCAT_ADVANCED_MISC 602
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#define SUBCAT_ADVANCED_NETWORK 603
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#define CAT_PLAYLIST 7
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#define SUBCAT_PLAYLIST_GENERAL 701
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#define SUBCAT_PLAYLIST_SD 702
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#define SUBCAT_PLAYLIST_EXPORT 703
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/**
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* Current plugin ABI version
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*/
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# define MODULE_SYMBOL 3_0_0f
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# define MODULE_SUFFIX "__3_0_0f"
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/*****************************************************************************
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* Add a few defines. You do not want to read this section. Really.
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*****************************************************************************/
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/* Explanation:
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*
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* if linking a module statically, we will need:
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* #define MODULE_FUNC( zog ) module_foo_zog
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*
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* this can't easily be done with the C preprocessor, thus a few ugly hacks.
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*/
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/* I need to do _this_ to change « foo bar » to « module_foo_bar » ! */
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#define CONCATENATE( y, z ) CRUDE_HACK( y, z )
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#define CRUDE_HACK( y, z ) y##__##z
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/* If the module is built-in, then we need to define foo_InitModule instead
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* of InitModule. Same for Activate- and DeactivateModule. */
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#ifdef __PLUGIN__
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# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_SYMBOL )
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# define VLC_MODULE_NAME_HIDDEN_SYMBOL \
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const char vlc_module_name[] = MODULE_STRING;
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#else
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# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_NAME )
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# define VLC_MODULE_NAME_HIDDEN_SYMBOL
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#endif
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#define CDECL_SYMBOL
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#if defined (__PLUGIN__)
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# if defined (_WIN32)
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# define DLL_SYMBOL __declspec(dllexport)
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# undef CDECL_SYMBOL
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# define CDECL_SYMBOL __cdecl
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# elif defined (__GNUC__)
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# define DLL_SYMBOL __attribute__((visibility("default")))
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# else
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# define DLL_SYMBOL
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# endif
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#else
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# define DLL_SYMBOL
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#endif
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#if defined( __cplusplus )
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# define EXTERN_SYMBOL extern "C"
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#else
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# define EXTERN_SYMBOL
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#endif
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EXTERN_SYMBOL typedef int (*vlc_set_cb) (void *, void *, int, ...);
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#define vlc_plugin_set(...) vlc_set (opaque, NULL, __VA_ARGS__)
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#define vlc_module_set(...) vlc_set (opaque, module, __VA_ARGS__)
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#define vlc_config_set(...) vlc_set (opaque, config, __VA_ARGS__)
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/*
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* InitModule: this function is called once and only once, when the module
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* is looked at for the first time. We get the useful data from it, for
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* instance the module name, its shortcuts, its capabilities... we also create
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* a copy of its config because the module can be unloaded at any time.
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*/
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#define vlc_module_begin() \
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EXTERN_SYMBOL DLL_SYMBOL \
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int CDECL_SYMBOL __VLC_SYMBOL(vlc_entry) (vlc_set_cb, void *); \
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EXTERN_SYMBOL DLL_SYMBOL \
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int CDECL_SYMBOL __VLC_SYMBOL(vlc_entry) (vlc_set_cb vlc_set, void *opaque) \
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{ \
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module_t *module; \
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module_config_t *config = NULL; \
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if (vlc_plugin_set (VLC_MODULE_CREATE, &module)) \
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goto error; \
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if (vlc_module_set (VLC_MODULE_NAME, (MODULE_STRING))) \
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goto error;
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#define vlc_module_end() \
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(void) config; \
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return 0; \
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error: \
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return -1; \
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} \
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VLC_MODULE_NAME_HIDDEN_SYMBOL \
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VLC_METADATA_EXPORTS
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#define add_submodule( ) \
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if (vlc_plugin_set (VLC_MODULE_CREATE, &module)) \
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goto error;
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#define add_shortcut( ... ) \
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{ \
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const char *shortcuts[] = { __VA_ARGS__ }; \
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if (vlc_module_set (VLC_MODULE_SHORTCUT, \
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sizeof(shortcuts)/sizeof(shortcuts[0]), shortcuts)) \
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goto error; \
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}
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#define set_shortname( shortname ) \
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if (vlc_module_set (VLC_MODULE_SHORTNAME, (const char *)(shortname))) \
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goto error;
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#define set_description( desc ) \
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if (vlc_module_set (VLC_MODULE_DESCRIPTION, (const char *)(desc))) \
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goto error;
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#define set_help( help ) \
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if (vlc_module_set (VLC_MODULE_HELP, (const char *)(help))) \
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goto error;
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#define set_capability( cap, score ) \
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if (vlc_module_set (VLC_MODULE_CAPABILITY, (const char *)(cap)) \
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|| vlc_module_set (VLC_MODULE_SCORE, (int)(score))) \
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goto error;
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#define set_callbacks( activate, deactivate ) \
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if (vlc_module_set(VLC_MODULE_CB_OPEN, #activate, (void *)(activate)) \
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|| vlc_module_set(VLC_MODULE_CB_CLOSE, #deactivate, \
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(void *)(deactivate))) \
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goto error;
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#define cannot_unload_broken_library( ) \
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if (vlc_module_set (VLC_MODULE_NO_UNLOAD)) \
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goto error;
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#define set_text_domain( dom ) \
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if (vlc_plugin_set (VLC_MODULE_TEXTDOMAIN, (dom))) \
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goto error;
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/*****************************************************************************
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* Macros used to build the configuration structure.
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*
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* Note that internally we support only 3 types of config data: int, float
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* and string.
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* The other types declared here just map to one of these 3 basic types but
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* have the advantage of also providing very good hints to a configuration
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* interface so as to make it more user friendly.
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* The configuration structure also includes category hints. These hints can
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* provide a configuration interface with some very useful data and again
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* allow for a more user friendly interface.
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*****************************************************************************/
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#define add_type_inner( type ) \
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vlc_plugin_set (VLC_CONFIG_CREATE, (type), &config);
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#define add_typedesc_inner( type, text, longtext ) \
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add_type_inner( type ) \
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vlc_config_set (VLC_CONFIG_DESC, \
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(const char *)(text), (const char *)(longtext));
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#define add_typeadv_inner( type, text, longtext, advc ) \
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add_typedesc_inner( type, text, longtext ) \
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if (advc) vlc_config_set (VLC_CONFIG_ADVANCED);
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#define add_typename_inner( type, name, text, longtext, advc ) \
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add_typeadv_inner( type, text, longtext, advc ) \
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vlc_config_set (VLC_CONFIG_NAME, (const char *)(name));
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#define add_string_inner( type, name, text, longtext, advc, v ) \
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add_typename_inner( type, name, text, longtext, advc ) \
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vlc_config_set (VLC_CONFIG_VALUE, (const char *)(v));
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#define add_int_inner( type, name, text, longtext, advc, v ) \
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add_typename_inner( type, name, text, longtext, advc ) \
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vlc_config_set (VLC_CONFIG_VALUE, (int64_t)(v));
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#define set_category( i_id ) \
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add_type_inner( CONFIG_CATEGORY ) \
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vlc_config_set (VLC_CONFIG_VALUE, (int64_t)(i_id));
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#define set_subcategory( i_id ) \
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add_type_inner( CONFIG_SUBCATEGORY ) \
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vlc_config_set (VLC_CONFIG_VALUE, (int64_t)(i_id));
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#define set_section( text, longtext ) \
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add_typedesc_inner( CONFIG_SECTION, text, longtext )
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#define add_category_hint( text, longtext, advc ) \
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add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
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#define add_usage_hint( text ) \
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add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
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#define add_string( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, \
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value )
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#define add_password( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_PASSWORD, name, text, longtext, advc, \
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value )
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#define add_loadfile( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_LOADFILE, name, text, longtext, advc, \
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value )
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#define add_savefile( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_SAVEFILE, name, text, longtext, advc, \
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value )
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#define add_directory( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, \
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value )
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#define add_font( name, value, text, longtext, advc )\
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add_string_inner( CONFIG_ITEM_FONT, name, text, longtext, advc, \
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value )
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#define add_module( name, psz_caps, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, \
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value ) \
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vlc_config_set (VLC_CONFIG_CAPABILITY, (const char *)(psz_caps));
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#define add_module_list( name, psz_caps, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, \
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value ) \
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vlc_config_set (VLC_CONFIG_CAPABILITY, (const char *)(psz_caps));
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#ifndef __PLUGIN__
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#define add_module_cat( name, i_subcategory, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, \
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value ) \
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change_integer_range (i_subcategory /* gruik */, 0);
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#define add_module_list_cat( name, i_subcategory, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, \
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advc, value ) \
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change_integer_range (i_subcategory /* gruik */, 0);
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#endif
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#define add_integer( name, value, text, longtext, advc ) \
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add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, value )
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#define add_rgb( name, value, text, longtext, advc ) \
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add_int_inner( CONFIG_ITEM_RGB, name, text, longtext, advc, value ) \
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change_integer_range( 0, 0xFFFFFF )
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#define add_key( name, value, text, longtext, advc ) \
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add_string_inner( CONFIG_ITEM_KEY, "global-" name, text, longtext, advc, \
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KEY_UNSET ) \
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add_string_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, value )
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#define add_integer_with_range( name, value, i_min, i_max, text, longtext, advc ) \
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add_integer( name, value, text, longtext, advc ) \
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change_integer_range( i_min, i_max )
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#define add_float( name, v, text, longtext, advc ) \
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add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc ) \
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vlc_config_set (VLC_CONFIG_VALUE, (double)(v));
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#define add_float_with_range( name, value, f_min, f_max, text, longtext, advc ) \
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add_float( name, value, text, longtext, advc ) \
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change_float_range( f_min, f_max )
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#define add_bool( name, v, text, longtext, advc ) \
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add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc ) \
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if (v) vlc_config_set (VLC_CONFIG_VALUE, (int64_t)true);
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/* For removed option */
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#define add_obsolete_inner( name, type ) \
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add_type_inner( type ) \
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vlc_config_set (VLC_CONFIG_NAME, (const char *)(name)); \
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vlc_config_set (VLC_CONFIG_REMOVED);
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#define add_obsolete_bool( name ) \
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add_obsolete_inner( name, CONFIG_ITEM_BOOL )
|
|
|
|
#define add_obsolete_integer( name ) \
|
|
add_obsolete_inner( name, CONFIG_ITEM_INTEGER )
|
|
|
|
#define add_obsolete_float( name ) \
|
|
add_obsolete_inner( name, CONFIG_ITEM_FLOAT )
|
|
|
|
#define add_obsolete_string( name ) \
|
|
add_obsolete_inner( name, CONFIG_ITEM_STRING )
|
|
|
|
/* Modifier macros for the config options (used for fine tuning) */
|
|
|
|
#define change_short( ch ) \
|
|
vlc_config_set (VLC_CONFIG_SHORTCUT, (int)(ch));
|
|
|
|
#define change_string_list( list, list_text ) \
|
|
vlc_config_set (VLC_CONFIG_LIST, \
|
|
(size_t)(sizeof (list) / sizeof (char *)), \
|
|
(const char *const *)(list), \
|
|
(const char *const *)(list_text));
|
|
|
|
#define change_string_cb( cb ) \
|
|
vlc_config_set (VLC_CONFIG_LIST_CB, #cb, (void *)(cb));
|
|
|
|
#define change_integer_list( list, list_text ) \
|
|
vlc_config_set (VLC_CONFIG_LIST, \
|
|
(size_t)(sizeof (list) / sizeof (int)), \
|
|
(const int *)(list), \
|
|
(const char *const *)(list_text));
|
|
|
|
#define change_integer_cb( cb ) \
|
|
vlc_config_set (VLC_CONFIG_LIST_CB, #cb, (cb));
|
|
|
|
#define change_integer_range( minv, maxv ) \
|
|
vlc_config_set (VLC_CONFIG_RANGE, (int64_t)(minv), (int64_t)(maxv));
|
|
|
|
#define change_float_range( minv, maxv ) \
|
|
vlc_config_set (VLC_CONFIG_RANGE, (double)(minv), (double)(maxv));
|
|
|
|
/* For options that are saved but hidden from the preferences panel */
|
|
#define change_private() \
|
|
vlc_config_set (VLC_CONFIG_PRIVATE);
|
|
|
|
/* For options that cannot be saved in the configuration */
|
|
#define change_volatile() \
|
|
change_private() \
|
|
vlc_config_set (VLC_CONFIG_VOLATILE);
|
|
|
|
#define change_safe() \
|
|
vlc_config_set (VLC_CONFIG_SAFE);
|
|
|
|
/* Meta data plugin exports */
|
|
#define VLC_META_EXPORT( name, value ) \
|
|
EXTERN_SYMBOL DLL_SYMBOL const char * CDECL_SYMBOL \
|
|
__VLC_SYMBOL(vlc_entry_ ## name) (void); \
|
|
EXTERN_SYMBOL DLL_SYMBOL const char * CDECL_SYMBOL \
|
|
__VLC_SYMBOL(vlc_entry_ ## name) (void) \
|
|
{ \
|
|
return value; \
|
|
}
|
|
|
|
#define VLC_COPYRIGHT_VIDEOLAN \
|
|
"\x43\x6f\x70\x79\x72\x69\x67\x68\x74\x20\x28\x43\x29\x20\x74\x68" \
|
|
"\x65\x20\x56\x69\x64\x65\x6f\x4c\x41\x4e\x20\x56\x4c\x43\x20\x6d" \
|
|
"\x65\x64\x69\x61\x20\x70\x6c\x61\x79\x65\x72\x20\x64\x65\x76\x65" \
|
|
"\x6c\x6f\x70\x65\x72\x73"
|
|
#define VLC_LICENSE_LGPL_2_1_PLUS \
|
|
"\x4c\x69\x63\x65\x6e\x73\x65\x64\x20\x75\x6e\x64\x65\x72\x20\x74" \
|
|
"\x68\x65\x20\x74\x65\x72\x6d\x73\x20\x6f\x66\x20\x74\x68\x65\x20" \
|
|
"\x47\x4e\x55\x20\x4c\x65\x73\x73\x65\x72\x20\x47\x65\x6e\x65\x72" \
|
|
"\x61\x6c\x20\x50\x75\x62\x6c\x69\x63\x20\x4c\x69\x63\x65\x6e\x73" \
|
|
"\x65\x2c\x20\x76\x65\x72\x73\x69\x6f\x6e\x20\x32\x2e\x31\x20\x6f" \
|
|
"\x72\x20\x6c\x61\x74\x65\x72\x2e"
|
|
#define VLC_LICENSE_GPL_2_PLUS \
|
|
"\x4c\x69\x63\x65\x6e\x73\x65\x64\x20\x75\x6e\x64\x65\x72\x20\x74" \
|
|
"\x68\x65\x20\x74\x65\x72\x6d\x73\x20\x6f\x66\x20\x74\x68\x65\x20" \
|
|
"\x47\x4e\x55\x20\x47\x65\x6e\x65\x72\x61\x6c\x20\x50\x75\x62\x6c" \
|
|
"\x69\x63\x20\x4c\x69\x63\x65\x6e\x73\x65\x2c\x20\x76\x65\x72\x73" \
|
|
"\x69\x6f\x6e\x20\x32\x20\x6f\x72\x20\x6c\x61\x74\x65\x72\x2e"
|
|
#if defined (__LIBVLC__)
|
|
# define VLC_MODULE_COPYRIGHT VLC_COPYRIGHT_VIDEOLAN
|
|
# ifndef VLC_MODULE_LICENSE
|
|
# define VLC_MODULE_LICENSE VLC_LICENSE_LGPL_2_1_PLUS
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef VLC_MODULE_COPYRIGHT
|
|
# define VLC_COPYRIGHT_EXPORT VLC_META_EXPORT(copyright, VLC_MODULE_COPYRIGHT)
|
|
#else
|
|
# define VLC_COPYRIGHT_EXPORT
|
|
#endif
|
|
#ifdef VLC_MODULE_LICENSE
|
|
# define VLC_LICENSE_EXPORT VLC_META_EXPORT(license, VLC_MODULE_LICENSE)
|
|
#else
|
|
# define VLC_LICENSE_EXPORT
|
|
#endif
|
|
|
|
#define VLC_METADATA_EXPORTS \
|
|
VLC_COPYRIGHT_EXPORT \
|
|
VLC_LICENSE_EXPORT
|
|
|
|
#endif
|