mirror of
https://github.com/mpv-player/mpv
synced 2024-12-18 12:55:16 +00:00
f60826c3a1
As it turns out, there are multiple libmpv users who saw a need to use the hook API. The API is kind of shitty and was never meant to be actually public (it was mostly a hack for the ytdl script). Introduce a proper API and deprecate the old one. The old one will probably continue to work for a few releases, but will be removed eventually. There are some slight changes to the old API, but if a user followed the manual properly, it won't break. Mostly untested. Appears to work with ytdl_hook.
378 lines
14 KiB
C
378 lines
14 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv 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
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <limits.h>
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#include "config.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "options/m_option.h"
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#include "input.h"
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#include "cmd_list.h"
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#include "cmd_parse.h"
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// This does not specify the real destination of the command parameter values,
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// it just provides a dummy for the OPT_ macros.
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#define OPT_BASE_STRUCT struct mp_cmd_arg
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#define ARG(t) "", v. t
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/* This array defines all known commands.
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* The first field is an id used to recognize the command.
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* The second is the command name used in slave mode and input.conf.
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* Then comes the definition of each argument, first mandatory arguments
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* (ARG_INT, ARG_FLOAT, ARG_STRING) if any, then optional arguments
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* (OARG_INT(default), etc) if any. The command will be given the default
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* argument value if the user didn't give enough arguments to specify it.
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* A command can take a maximum of MP_CMD_DEF_MAX_ARGS arguments, or more
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* if the command uses varargs.
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*/
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#define ARG_INT OPT_INT(ARG(i), 0)
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#define ARG_FLOAT OPT_FLOAT(ARG(f), 0)
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#define ARG_DOUBLE OPT_DOUBLE(ARG(d), 0)
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#define ARG_STRING OPT_STRING(ARG(s), 0)
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#define ARG_CHOICE(c) OPT_CHOICE(ARG(i), 0, c)
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#define ARG_CHOICE_OR_INT(...) OPT_CHOICE_OR_INT(ARG(i), 0, __VA_ARGS__)
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#define ARG_TIME OPT_TIME(ARG(d), 0)
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#define OARG_DOUBLE(def) OPT_DOUBLE(ARG(d), 0, OPTDEF_DOUBLE(def))
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#define OARG_INT(def) OPT_INT(ARG(i), 0, OPTDEF_INT(def))
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#define OARG_CHOICE(def, c) OPT_CHOICE(ARG(i), 0, c, OPTDEF_INT(def))
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#define OARG_FLAGS(def, c) OPT_FLAGS(ARG(i), 0, c, OPTDEF_INT(def))
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#define OARG_STRING(def) OPT_STRING(ARG(s), 0, OPTDEF_STR(def))
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#define OARG_CYCLEDIR(def) OPT_CYCLEDIR(ARG(d), 0, OPTDEF_DOUBLE(def))
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const struct mp_cmd_def mp_cmds[] = {
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{ MP_CMD_IGNORE, "ignore", },
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{ MP_CMD_SEEK, "seek", {
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ARG_TIME,
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OARG_FLAGS(4|0, ({"relative", 4|0}, {"-", 4|0},
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{"absolute-percent", 4|1},
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{"absolute", 4|2},
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{"relative-percent", 4|3},
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{"keyframes", 32|8},
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{"exact", 32|16})),
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// backwards compatibility only
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OARG_CHOICE(0, ({"unused", 0}, {"default-precise", 0},
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{"keyframes", 32|8},
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{"exact", 32|16})),
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},
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.allow_auto_repeat = true,
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.scalable = true,
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},
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{ MP_CMD_REVERT_SEEK, "revert-seek", {
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OARG_FLAGS(0, ({"mark", 1})),
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}},
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{ MP_CMD_QUIT, "quit", { OARG_INT(0) } },
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{ MP_CMD_QUIT_WATCH_LATER, "quit-watch-later", { OARG_INT(0) } },
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{ MP_CMD_STOP, "stop", },
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{ MP_CMD_FRAME_STEP, "frame-step", .allow_auto_repeat = true,
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.on_updown = true },
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{ MP_CMD_FRAME_BACK_STEP, "frame-back-step", .allow_auto_repeat = true },
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{ MP_CMD_PLAYLIST_NEXT, "playlist-next", {
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OARG_CHOICE(0, ({"weak", 0},
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{"force", 1})),
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}},
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{ MP_CMD_PLAYLIST_PREV, "playlist-prev", {
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OARG_CHOICE(0, ({"weak", 0},
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{"force", 1})),
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}},
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{ MP_CMD_PLAYLIST_SHUFFLE, "playlist-shuffle", },
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{ MP_CMD_SUB_STEP, "sub-step", { ARG_INT }, .allow_auto_repeat = true },
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{ MP_CMD_SUB_SEEK, "sub-seek", { ARG_INT }, .allow_auto_repeat = true },
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{ MP_CMD_PRINT_TEXT, "print-text", { ARG_STRING }, .allow_auto_repeat = true },
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{ MP_CMD_SHOW_TEXT, "show-text", { ARG_STRING, OARG_INT(-1), OARG_INT(0) },
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.allow_auto_repeat = true},
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{ MP_CMD_EXPAND_TEXT, "expand-text", { ARG_STRING } },
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{ MP_CMD_SHOW_PROGRESS, "show-progress", .allow_auto_repeat = true},
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{ MP_CMD_SUB_ADD, "sub-add", { ARG_STRING,
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OARG_CHOICE(0, ({"select", 0}, {"auto", 1}, {"cached", 2})),
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OARG_STRING(""), OARG_STRING("") } },
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{ MP_CMD_SUB_REMOVE, "sub-remove", { OARG_INT(-1) } },
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{ MP_CMD_SUB_RELOAD, "sub-reload", { OARG_INT(-1) } },
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{ MP_CMD_TV_LAST_CHANNEL, "tv-last-channel", },
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{ MP_CMD_SCREENSHOT, "screenshot", {
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OARG_FLAGS(4|2, ({"video", 4|0}, {"-", 4|0},
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{"window", 4|1},
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{"subtitles", 4|2},
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{"each-frame", 8})),
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// backwards compatibility
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OARG_CHOICE(0, ({"unused", 0}, {"single", 0},
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{"each-frame", 8})),
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}},
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{ MP_CMD_SCREENSHOT_TO_FILE, "screenshot-to-file", {
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ARG_STRING,
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OARG_CHOICE(2, ({"video", 0},
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{"window", 1},
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{"subtitles", 2})),
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}},
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{ MP_CMD_SCREENSHOT_RAW, "screenshot-raw", {
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OARG_CHOICE(2, ({"video", 0},
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{"window", 1},
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{"subtitles", 2})),
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}},
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{ MP_CMD_LOADFILE, "loadfile", {
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ARG_STRING,
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OARG_CHOICE(0, ({"replace", 0},
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{"append", 1},
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{"append-play", 2})),
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OPT_KEYVALUELIST(ARG(str_list), MP_CMD_OPT_ARG),
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}},
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{ MP_CMD_LOADLIST, "loadlist", {
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ARG_STRING,
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OARG_CHOICE(0, ({"replace", 0},
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{"append", 1})),
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}},
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{ MP_CMD_PLAYLIST_CLEAR, "playlist-clear", },
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{ MP_CMD_PLAYLIST_REMOVE, "playlist-remove", {
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ARG_CHOICE_OR_INT(0, INT_MAX, ({"current", -1})),
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}},
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{ MP_CMD_PLAYLIST_MOVE, "playlist-move", { ARG_INT, ARG_INT } },
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{ MP_CMD_RUN, "run", { ARG_STRING, ARG_STRING }, .vararg = true },
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{ MP_CMD_SET, "set", { ARG_STRING, ARG_STRING } },
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{ MP_CMD_CHANGE_LIST, "change-list", { ARG_STRING, ARG_STRING, ARG_STRING } },
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{ MP_CMD_ADD, "add", { ARG_STRING, OARG_DOUBLE(1) },
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.allow_auto_repeat = true,
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.scalable = true,
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},
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{ MP_CMD_CYCLE, "cycle", {
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ARG_STRING,
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OARG_CYCLEDIR(1),
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},
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.allow_auto_repeat = true,
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.scalable = true,
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},
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{ MP_CMD_MULTIPLY, "multiply", { ARG_STRING, ARG_DOUBLE },
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.allow_auto_repeat = true},
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{ MP_CMD_CYCLE_VALUES, "cycle-values", { ARG_STRING, ARG_STRING, ARG_STRING },
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.vararg = true},
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{ MP_CMD_ENABLE_INPUT_SECTION, "enable-section", {
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ARG_STRING,
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OARG_FLAGS(0, ({"default", 0},
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{"exclusive", MP_INPUT_EXCLUSIVE},
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{"allow-hide-cursor", MP_INPUT_ALLOW_HIDE_CURSOR},
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{"allow-vo-dragging", MP_INPUT_ALLOW_VO_DRAGGING})),
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}},
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{ MP_CMD_DISABLE_INPUT_SECTION, "disable-section", { ARG_STRING } },
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{ MP_CMD_DEFINE_INPUT_SECTION, "define-section", {
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ARG_STRING,
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ARG_STRING,
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OARG_CHOICE(1, ({"default", 1},
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{"force", 0})),
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}},
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{ MP_CMD_AB_LOOP, "ab-loop", },
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{ MP_CMD_DROP_BUFFERS, "drop-buffers", },
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{ MP_CMD_AF, "af", { ARG_STRING, ARG_STRING } },
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{ MP_CMD_AF_COMMAND, "af-command", { ARG_STRING, ARG_STRING, ARG_STRING } },
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{ MP_CMD_AO_RELOAD, "ao-reload", },
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{ MP_CMD_VF, "vf", { ARG_STRING, ARG_STRING } },
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{ MP_CMD_VF_COMMAND, "vf-command", { ARG_STRING, ARG_STRING, ARG_STRING } },
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{ MP_CMD_SCRIPT_BINDING, "script-binding", { ARG_STRING },
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.allow_auto_repeat = true, .on_updown = true},
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{ MP_CMD_SCRIPT_MESSAGE, "script-message", { ARG_STRING }, .vararg = true },
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{ MP_CMD_SCRIPT_MESSAGE_TO, "script-message-to", { ARG_STRING, ARG_STRING },
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.vararg = true },
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{ MP_CMD_OVERLAY_ADD, "overlay-add",
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{ ARG_INT, ARG_INT, ARG_INT, ARG_STRING, ARG_INT, ARG_STRING, ARG_INT,
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ARG_INT, ARG_INT }},
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{ MP_CMD_OVERLAY_REMOVE, "overlay-remove", { ARG_INT } },
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{ MP_CMD_WRITE_WATCH_LATER_CONFIG, "write-watch-later-config", },
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{ MP_CMD_HOOK_ADD, "hook-add", { ARG_STRING, ARG_INT, ARG_INT } },
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{ MP_CMD_HOOK_ACK, "hook-ack", { ARG_INT } },
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{ MP_CMD_MOUSE, "mouse", {
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ARG_INT, ARG_INT, // coordinate (x, y)
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OARG_INT(-1), // button number
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OARG_CHOICE(0, ({"single", 0},
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{"double", 1})),
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}},
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{ MP_CMD_KEYPRESS, "keypress", { ARG_STRING } },
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{ MP_CMD_KEYDOWN, "keydown", { ARG_STRING } },
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{ MP_CMD_KEYUP, "keyup", { OARG_STRING("") } },
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{ MP_CMD_AUDIO_ADD, "audio-add", { ARG_STRING,
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OARG_CHOICE(0, ({"select", 0}, {"auto", 1}, {"cached", 2})),
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OARG_STRING(""), OARG_STRING("") } },
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{ MP_CMD_AUDIO_REMOVE, "audio-remove", { OARG_INT(-1) } },
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{ MP_CMD_AUDIO_RELOAD, "audio-reload", { OARG_INT(-1) } },
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{ MP_CMD_RESCAN_EXTERNAL_FILES, "rescan-external-files", {
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OARG_CHOICE(1, ({"keep-selection", 0},
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{"reselect", 1})),
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}},
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{ MP_CMD_APPLY_PROFILE, "apply-profile", {ARG_STRING } },
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{ MP_CMD_LOAD_SCRIPT, "load-script", {ARG_STRING} },
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{0}
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};
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#undef OPT_BASE_STRUCT
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#undef ARG
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// Map legacy commands to proper commands
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struct legacy_cmd {
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const char *old, *new;
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};
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static const struct legacy_cmd legacy_cmds[] = {
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{"loop", "cycle loop"},
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{"seek_chapter", "add chapter"},
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{"switch_angle", "cycle angle"},
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{"pause", "cycle pause"},
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{"volume", "add volume"},
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{"mute", "cycle mute"},
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{"audio_delay", "add audio-delay"},
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{"switch_audio", "cycle audio"},
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{"balance", "add balance"},
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{"vo_fullscreen", "cycle fullscreen"},
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{"panscan", "add panscan"},
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{"vo_ontop", "cycle ontop"},
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{"vo_border", "cycle border"},
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{"frame_drop", "cycle framedrop"},
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{"gamma", "add gamma"},
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{"brightness", "add brightness"},
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{"contrast", "add contrast"},
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{"saturation", "add saturation"},
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{"hue", "add hue"},
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{"switch_vsync", "cycle vsync"},
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{"sub_load", "sub-add"},
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{"sub_select", "cycle sub"},
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{"sub_pos", "add sub-pos"},
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{"sub_delay", "add sub-delay"},
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{"sub_visibility", "cycle sub-visibility"},
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{"forced_subs_only", "cycle sub-forced-only"},
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{"sub_scale", "add sub-scale"},
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{"ass_use_margins", "cycle ass-use-margins"},
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{"tv_set_brightness", "add tv-brightness"},
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{"tv_set_hue", "add tv-hue"},
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{"tv_set_saturation", "add tv-saturation"},
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{"tv_set_contrast", "add tv-contrast"},
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{"step_property_osd", "cycle"},
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{"step_property", "no-osd cycle"},
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{"set_property", "no-osd set"},
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{"set_property_osd", "set"},
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{"speed_set", "set speed"},
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{"osd_show_text", "show-text"},
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{"osd_show_property_text", "show-text"},
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{"osd_show_progression", "show-progress"},
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{"show_chapters_osd", "show-text ${chapter-list}"},
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{"show_chapters", "show-text ${chapter-list}"},
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{"show_tracks_osd", "show-text ${track-list}"},
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{"show_tracks", "show-text ${track-list}"},
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{"show_playlist", "show-text ${playlist}"},
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{"speed_mult", "multiply speed"},
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// Approximate (can fail if user added additional whitespace)
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{"pt_step 1", "playlist-next"},
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{"pt_step -1", "playlist-prev"},
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// Switch_ratio without argument resets aspect ratio
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{"switch_ratio ", "set aspect "},
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{"switch_ratio", "set aspect 0"},
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{0}
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};
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bool mp_replace_legacy_cmd(void *t, bstr *s)
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{
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for (const struct legacy_cmd *entry = legacy_cmds; entry->old; entry++) {
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bstr old = bstr0(entry->old);
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if (bstrcasecmp(bstr_splice(*s, 0, old.len), old) == 0) {
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bstr rest = bstr_cut(*s, old.len);
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*s = bstr0(talloc_asprintf(t, "%s%.*s", entry->new, BSTR_P(rest)));
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return true;
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}
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}
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return false;
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}
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// 0: no, 1: maybe, 2: sure
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static int is_abort_cmd(struct mp_cmd *cmd)
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{
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switch (cmd->id) {
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case MP_CMD_QUIT:
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case MP_CMD_QUIT_WATCH_LATER:
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case MP_CMD_STOP:
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return 2;
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case MP_CMD_PLAYLIST_NEXT:
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case MP_CMD_PLAYLIST_PREV:
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return 1;
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case MP_CMD_COMMAND_LIST:;
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int r = 0;
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for (struct mp_cmd *sub = cmd->args[0].v.p; sub; sub = sub->queue_next) {
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int x = is_abort_cmd(sub);
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r = MPMAX(r, x);
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}
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return r;
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}
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return 0;
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}
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bool mp_input_is_maybe_abort_cmd(struct mp_cmd *cmd)
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{
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return is_abort_cmd(cmd) >= 1;
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}
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bool mp_input_is_abort_cmd(struct mp_cmd *cmd)
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{
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return is_abort_cmd(cmd) >= 2;
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}
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bool mp_input_is_repeatable_cmd(struct mp_cmd *cmd)
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{
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return (cmd->def && cmd->def->allow_auto_repeat) ||
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cmd->id == MP_CMD_COMMAND_LIST ||
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(cmd->flags & MP_ALLOW_REPEAT);
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}
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bool mp_input_is_scalable_cmd(struct mp_cmd *cmd)
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{
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return cmd->def && cmd->def->scalable;
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}
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void mp_print_cmd_list(struct mp_log *out)
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{
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for (int i = 0; mp_cmds[i].name; i++) {
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const struct mp_cmd_def *def = &mp_cmds[i];
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mp_info(out, "%-20.20s", def->name);
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for (int j = 0; j < MP_CMD_DEF_MAX_ARGS && def->args[j].type; j++) {
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const char *type = def->args[j].type->name;
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if (def->args[j].defval)
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mp_info(out, " [%s]", type);
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else
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mp_info(out, " %s", type);
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}
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mp_info(out, "\n");
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}
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}
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