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mirror of https://github.com/mpv-player/mpv synced 2024-12-21 06:14:32 +00:00
mpv/input/cmd_list.c
wm4 f60826c3a1
client API: add a first class hook API, and deprecate old API
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.
2018-03-26 23:02:23 -07:00

378 lines
14 KiB
C

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