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mpv/core/input/input.c

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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <ctype.h>
#include <assert.h>
#include <libavutil/avstring.h>
#include <libavutil/common.h>
#include "osdep/io.h"
#include "osdep/getch2.h"
#include "input.h"
#include "core/mp_fifo.h"
#include "keycodes.h"
#include "osdep/timer.h"
#include "core/mp_msg.h"
#include "core/m_config.h"
#include "core/m_option.h"
#include "core/path.h"
#include "talloc.h"
#include "core/options.h"
#include "core/bstr.h"
#include "stream/stream.h"
#include "core/mp_common.h"
#include "joystick.h"
#ifdef CONFIG_LIRC
#include "lirc.h"
#endif
#ifdef CONFIG_LIRCC
#include <lirc/lircc.h>
#endif
#define MP_MAX_KEY_DOWN 32
struct cmd_bind {
int input[MP_MAX_KEY_DOWN + 1];
char *cmd;
char *location; // filename/line number of definition
struct cmd_bind_section *owner;
};
struct key_name {
int key;
char *name;
};
/* 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_MAX_ARGS arguments (10).
*/
#define ARG_INT { .type = {"", NULL, &m_option_type_int} }
#define ARG_FLOAT { .type = {"", NULL, &m_option_type_float} }
#define ARG_STRING { .type = {"", NULL, &m_option_type_string} }
#define ARG_CHOICE(c) { .type = {"", NULL, &m_option_type_choice, \
M_CHOICES(c)} }
#define ARG_TIME { .type = {"", NULL, &m_option_type_time} }
#define OARG_FLOAT(def) { .type = {"", NULL, &m_option_type_float}, \
.optional = true, .v.f = def }
#define OARG_INT(def) { .type = {"", NULL, &m_option_type_int}, \
.optional = true, .v.i = def }
#define OARG_CHOICE(def, c) { .type = {"", NULL, &m_option_type_choice, \
M_CHOICES(c)}, \
.optional = true, .v.i = def }
static int parse_cycle_dir(const struct m_option *opt, struct bstr name,
struct bstr param, void *dst);
static const struct m_option_type m_option_type_cycle_dir = {
.name = "up|down",
.parse = parse_cycle_dir,
};
static const mp_cmd_t mp_cmds[] = {
{ MP_CMD_IGNORE, "ignore", },
{ MP_CMD_RADIO_STEP_CHANNEL, "radio_step_channel", { ARG_INT } },
{ MP_CMD_RADIO_SET_CHANNEL, "radio_set_channel", { ARG_STRING } },
{ MP_CMD_RADIO_SET_FREQ, "radio_set_freq", { ARG_FLOAT } },
{ MP_CMD_RADIO_STEP_FREQ, "radio_step_freq", {ARG_FLOAT } },
{ MP_CMD_SEEK, "seek", {
ARG_TIME,
OARG_CHOICE(0, ({"relative", 0}, {"0", 0},
{"absolute-percent", 1}, {"1", 1},
{"absolute", 2}, {"2", 2})),
OARG_CHOICE(0, ({"default-precise", 0}, {"0", 0},
{"exact", 1}, {"1", 1},
{"keyframes", -1}, {"-1", -1})),
}},
{ MP_CMD_SPEED_MULT, "speed_mult", { ARG_FLOAT } },
{ MP_CMD_QUIT, "quit", { OARG_INT(0) } },
{ MP_CMD_STOP, "stop", },
{ MP_CMD_FRAME_STEP, "frame_step", },
{ MP_CMD_PLAYLIST_NEXT, "playlist_next", {
OARG_CHOICE(0, ({"weak", 0}, {"0", 0},
{"force", 1}, {"1", 1})),
}},
{ MP_CMD_PLAYLIST_PREV, "playlist_prev", {
OARG_CHOICE(0, ({"weak", 0}, {"0", 0},
{"force", 1}, {"1", 1})),
}},
{ MP_CMD_SUB_STEP, "sub_step", { ARG_INT } },
{ MP_CMD_OSD, "osd", { OARG_INT(-1) } },
{ MP_CMD_PRINT_TEXT, "print_text", { ARG_STRING } },
{ MP_CMD_SHOW_TEXT, "show_text", { ARG_STRING, OARG_INT(-1), OARG_INT(0) } },
{ MP_CMD_SHOW_PROGRESS, "show_progress", },
{ MP_CMD_SUB_ADD, "sub_add", { ARG_STRING } },
{ MP_CMD_SUB_REMOVE, "sub_remove", { OARG_INT(-1) } },
{ MP_CMD_SUB_RELOAD, "sub_reload", { OARG_INT(-1) } },
{ MP_CMD_TV_START_SCAN, "tv_start_scan", },
{ MP_CMD_TV_STEP_CHANNEL, "tv_step_channel", { ARG_INT } },
{ MP_CMD_TV_STEP_NORM, "tv_step_norm", },
{ MP_CMD_TV_STEP_CHANNEL_LIST, "tv_step_chanlist", },
{ MP_CMD_TV_SET_CHANNEL, "tv_set_channel", { ARG_STRING } },
{ MP_CMD_TV_LAST_CHANNEL, "tv_last_channel", },
{ MP_CMD_TV_SET_FREQ, "tv_set_freq", { ARG_FLOAT } },
{ MP_CMD_TV_STEP_FREQ, "tv_step_freq", { ARG_FLOAT } },
{ MP_CMD_TV_SET_NORM, "tv_set_norm", { ARG_STRING } },
{ MP_CMD_DVB_SET_CHANNEL, "dvb_set_channel", { ARG_INT, ARG_INT } },
{ MP_CMD_SCREENSHOT, "screenshot", {
OARG_CHOICE(2, ({"video", 0},
{"window", 1},
{"subtitles", 2})),
OARG_CHOICE(0, ({"single", 0},
{"each-frame", 1})),
}},
{ MP_CMD_LOADFILE, "loadfile", {
ARG_STRING,
OARG_CHOICE(0, ({"replace", 0}, {"0", 0},
{"append", 1}, {"1", 1})),
}},
{ MP_CMD_LOADLIST, "loadlist", {
ARG_STRING,
OARG_CHOICE(0, ({"replace", 0}, {"0", 0},
{"append", 1}, {"1", 1})),
}},
{ MP_CMD_PLAYLIST_CLEAR, "playlist_clear", },
{ MP_CMD_RUN, "run", { ARG_STRING } },
{ MP_CMD_KEYDOWN_EVENTS, "key_down_event", { ARG_INT } },
{ MP_CMD_SET, "set", { ARG_STRING, ARG_STRING } },
{ MP_CMD_GET_PROPERTY, "get_property", { ARG_STRING } },
{ MP_CMD_ADD, "add", { ARG_STRING, OARG_FLOAT(0) } },
{ MP_CMD_CYCLE, "cycle", {
ARG_STRING,
{ .type = {"", NULL, &m_option_type_cycle_dir},
.optional = true,
.v.f = 1 },
}},
{ MP_CMD_SET_MOUSE_POS, "set_mouse_pos", { ARG_INT, ARG_INT } },
{ MP_CMD_AF_SWITCH, "af_switch", { ARG_STRING } },
{ MP_CMD_AF_ADD, "af_add", { ARG_STRING } },
{ MP_CMD_AF_DEL, "af_del", { ARG_STRING } },
{ MP_CMD_AF_CLR, "af_clr", },
{ MP_CMD_AF_CMDLINE, "af_cmdline", { ARG_STRING, ARG_STRING } },
{ MP_CMD_SHOW_CHAPTERS, "show_chapters", },
{ MP_CMD_SHOW_TRACKS, "show_tracks", },
{ MP_CMD_SHOW_PLAYLIST, "show_playlist", },
{ MP_CMD_VO_CMDLINE, "vo_cmdline", { ARG_STRING } },
{0}
};
// 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_chapters"},
{"show_tracks_osd", "show_tracks"},
// 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}
};
/// The names of the keys as used in input.conf
/// If you add some new keys, you also need to add them here
static const struct key_name key_names[] = {
{ ' ', "SPACE" },
{ '#', "SHARP" },
{ MP_KEY_ENTER, "ENTER" },
{ MP_KEY_TAB, "TAB" },
{ MP_KEY_BACKSPACE, "BS" },
{ MP_KEY_DELETE, "DEL" },
{ MP_KEY_INSERT, "INS" },
{ MP_KEY_HOME, "HOME" },
{ MP_KEY_END, "END" },
{ MP_KEY_PAGE_UP, "PGUP" },
{ MP_KEY_PAGE_DOWN, "PGDWN" },
{ MP_KEY_ESC, "ESC" },
{ MP_KEY_PRINT, "PRINT" },
{ MP_KEY_RIGHT, "RIGHT" },
{ MP_KEY_LEFT, "LEFT" },
{ MP_KEY_DOWN, "DOWN" },
{ MP_KEY_UP, "UP" },
{ MP_KEY_F+1, "F1" },
{ MP_KEY_F+2, "F2" },
{ MP_KEY_F+3, "F3" },
{ MP_KEY_F+4, "F4" },
{ MP_KEY_F+5, "F5" },
{ MP_KEY_F+6, "F6" },
{ MP_KEY_F+7, "F7" },
{ MP_KEY_F+8, "F8" },
{ MP_KEY_F+9, "F9" },
{ MP_KEY_F+10, "F10" },
{ MP_KEY_F+11, "F11" },
{ MP_KEY_F+12, "F12" },
{ MP_KEY_KP0, "KP0" },
{ MP_KEY_KP1, "KP1" },
{ MP_KEY_KP2, "KP2" },
{ MP_KEY_KP3, "KP3" },
{ MP_KEY_KP4, "KP4" },
{ MP_KEY_KP5, "KP5" },
{ MP_KEY_KP6, "KP6" },
{ MP_KEY_KP7, "KP7" },
{ MP_KEY_KP8, "KP8" },
{ MP_KEY_KP9, "KP9" },
{ MP_KEY_KPDEL, "KP_DEL" },
{ MP_KEY_KPDEC, "KP_DEC" },
{ MP_KEY_KPINS, "KP_INS" },
{ MP_KEY_KPENTER, "KP_ENTER" },
{ MP_MOUSE_BTN0, "MOUSE_BTN0" },
{ MP_MOUSE_BTN1, "MOUSE_BTN1" },
{ MP_MOUSE_BTN2, "MOUSE_BTN2" },
{ MP_MOUSE_BTN3, "MOUSE_BTN3" },
{ MP_MOUSE_BTN4, "MOUSE_BTN4" },
{ MP_MOUSE_BTN5, "MOUSE_BTN5" },
{ MP_MOUSE_BTN6, "MOUSE_BTN6" },
{ MP_MOUSE_BTN7, "MOUSE_BTN7" },
{ MP_MOUSE_BTN8, "MOUSE_BTN8" },
{ MP_MOUSE_BTN9, "MOUSE_BTN9" },
{ MP_MOUSE_BTN10, "MOUSE_BTN10" },
{ MP_MOUSE_BTN11, "MOUSE_BTN11" },
{ MP_MOUSE_BTN12, "MOUSE_BTN12" },
{ MP_MOUSE_BTN13, "MOUSE_BTN13" },
{ MP_MOUSE_BTN14, "MOUSE_BTN14" },
{ MP_MOUSE_BTN15, "MOUSE_BTN15" },
{ MP_MOUSE_BTN16, "MOUSE_BTN16" },
{ MP_MOUSE_BTN17, "MOUSE_BTN17" },
{ MP_MOUSE_BTN18, "MOUSE_BTN18" },
{ MP_MOUSE_BTN19, "MOUSE_BTN19" },
{ MP_MOUSE_BTN0_DBL, "MOUSE_BTN0_DBL" },
{ MP_MOUSE_BTN1_DBL, "MOUSE_BTN1_DBL" },
{ MP_MOUSE_BTN2_DBL, "MOUSE_BTN2_DBL" },
{ MP_MOUSE_BTN3_DBL, "MOUSE_BTN3_DBL" },
{ MP_MOUSE_BTN4_DBL, "MOUSE_BTN4_DBL" },
{ MP_MOUSE_BTN5_DBL, "MOUSE_BTN5_DBL" },
{ MP_MOUSE_BTN6_DBL, "MOUSE_BTN6_DBL" },
{ MP_MOUSE_BTN7_DBL, "MOUSE_BTN7_DBL" },
{ MP_MOUSE_BTN8_DBL, "MOUSE_BTN8_DBL" },
{ MP_MOUSE_BTN9_DBL, "MOUSE_BTN9_DBL" },
{ MP_MOUSE_BTN10_DBL, "MOUSE_BTN10_DBL" },
{ MP_MOUSE_BTN11_DBL, "MOUSE_BTN11_DBL" },
{ MP_MOUSE_BTN12_DBL, "MOUSE_BTN12_DBL" },
{ MP_MOUSE_BTN13_DBL, "MOUSE_BTN13_DBL" },
{ MP_MOUSE_BTN14_DBL, "MOUSE_BTN14_DBL" },
{ MP_MOUSE_BTN15_DBL, "MOUSE_BTN15_DBL" },
{ MP_MOUSE_BTN16_DBL, "MOUSE_BTN16_DBL" },
{ MP_MOUSE_BTN17_DBL, "MOUSE_BTN17_DBL" },
{ MP_MOUSE_BTN18_DBL, "MOUSE_BTN18_DBL" },
{ MP_MOUSE_BTN19_DBL, "MOUSE_BTN19_DBL" },
{ MP_JOY_AXIS1_MINUS, "JOY_UP" },
{ MP_JOY_AXIS1_PLUS, "JOY_DOWN" },
{ MP_JOY_AXIS0_MINUS, "JOY_LEFT" },
{ MP_JOY_AXIS0_PLUS, "JOY_RIGHT" },
{ MP_JOY_AXIS0_PLUS, "JOY_AXIS0_PLUS" },
{ MP_JOY_AXIS0_MINUS, "JOY_AXIS0_MINUS" },
{ MP_JOY_AXIS1_PLUS, "JOY_AXIS1_PLUS" },
{ MP_JOY_AXIS1_MINUS, "JOY_AXIS1_MINUS" },
{ MP_JOY_AXIS2_PLUS, "JOY_AXIS2_PLUS" },
{ MP_JOY_AXIS2_MINUS, "JOY_AXIS2_MINUS" },
{ MP_JOY_AXIS3_PLUS, "JOY_AXIS3_PLUS" },
{ MP_JOY_AXIS3_MINUS, "JOY_AXIS3_MINUS" },
{ MP_JOY_AXIS4_PLUS, "JOY_AXIS4_PLUS" },
{ MP_JOY_AXIS4_MINUS, "JOY_AXIS4_MINUS" },
{ MP_JOY_AXIS5_PLUS, "JOY_AXIS5_PLUS" },
{ MP_JOY_AXIS5_MINUS, "JOY_AXIS5_MINUS" },
{ MP_JOY_AXIS6_PLUS, "JOY_AXIS6_PLUS" },
{ MP_JOY_AXIS6_MINUS, "JOY_AXIS6_MINUS" },
{ MP_JOY_AXIS7_PLUS, "JOY_AXIS7_PLUS" },
{ MP_JOY_AXIS7_MINUS, "JOY_AXIS7_MINUS" },
{ MP_JOY_AXIS8_PLUS, "JOY_AXIS8_PLUS" },
{ MP_JOY_AXIS8_MINUS, "JOY_AXIS8_MINUS" },
{ MP_JOY_AXIS9_PLUS, "JOY_AXIS9_PLUS" },
{ MP_JOY_AXIS9_MINUS, "JOY_AXIS9_MINUS" },
{ MP_JOY_BTN0, "JOY_BTN0" },
{ MP_JOY_BTN1, "JOY_BTN1" },
{ MP_JOY_BTN2, "JOY_BTN2" },
{ MP_JOY_BTN3, "JOY_BTN3" },
{ MP_JOY_BTN4, "JOY_BTN4" },
{ MP_JOY_BTN5, "JOY_BTN5" },
{ MP_JOY_BTN6, "JOY_BTN6" },
{ MP_JOY_BTN7, "JOY_BTN7" },
{ MP_JOY_BTN8, "JOY_BTN8" },
{ MP_JOY_BTN9, "JOY_BTN9" },
{ MP_KEY_POWER, "POWER" },
{ MP_KEY_MENU, "MENU" },
{ MP_KEY_PLAY, "PLAY" },
{ MP_KEY_PAUSE, "PAUSE" },
{ MP_KEY_PLAYPAUSE, "PLAYPAUSE" },
{ MP_KEY_STOP, "STOP" },
{ MP_KEY_FORWARD, "FORWARD" },
{ MP_KEY_REWIND, "REWIND" },
{ MP_KEY_NEXT, "NEXT" },
{ MP_KEY_PREV, "PREV" },
{ MP_KEY_VOLUME_UP, "VOLUME_UP" },
{ MP_KEY_VOLUME_DOWN, "VOLUME_DOWN" },
{ MP_KEY_MUTE, "MUTE" },
// These are kept for backward compatibility
{ MP_KEY_PAUSE, "XF86_PAUSE" },
{ MP_KEY_STOP, "XF86_STOP" },
{ MP_KEY_PREV, "XF86_PREV" },
{ MP_KEY_NEXT, "XF86_NEXT" },
{ MP_KEY_CLOSE_WIN, "CLOSE_WIN" },
{ 0, NULL }
};
struct key_name modifier_names[] = {
{ MP_KEY_MODIFIER_SHIFT, "Shift" },
{ MP_KEY_MODIFIER_CTRL, "Ctrl" },
{ MP_KEY_MODIFIER_ALT, "Alt" },
{ MP_KEY_MODIFIER_META, "Meta" },
{ 0 }
};
#ifndef MP_MAX_KEY_FD
#define MP_MAX_KEY_FD 10
#endif
#ifndef MP_MAX_CMD_FD
#define MP_MAX_CMD_FD 10
#endif
struct input_fd {
int fd;
union {
int (*key)(void *ctx, int fd);
int (*cmd)(int fd, char *dest, int size);
} read_func;
int (*close_func)(int fd);
void *ctx;
unsigned eof : 1;
unsigned drop : 1;
unsigned dead : 1;
unsigned got_cmd : 1;
unsigned no_select : 1;
// These fields are for the cmd fds.
char *buffer;
int pos, size;
};
struct cmd_bind_section {
struct cmd_bind *cmd_binds;
bool is_builtin;
char *section;
struct cmd_bind_section *next;
};
struct cmd_queue {
struct mp_cmd *first;
};
struct input_ctx {
// Autorepeat stuff
short ar_state;
mp_cmd_t *ar_cmd;
unsigned int last_ar;
// Autorepeat config
unsigned int ar_delay;
unsigned int ar_rate;
// Maximum number of queued commands from keypresses (limit to avoid
// repeated slow commands piling up)
int key_fifo_size;
// these are the keys currently down
int key_down[MP_MAX_KEY_DOWN];
unsigned int num_key_down;
unsigned int last_key_down;
bool test;
bool default_bindings;
// List of command binding sections
struct cmd_bind_section *cmd_bind_sections;
// Name of currently used command section
char *section;
// Bitfield of mp_input_section_flags
int section_flags;
// Used to track whether we managed to read something while checking
// events sources. If yes, the sources may have more queued.
bool got_new_events;
struct input_fd key_fds[MP_MAX_KEY_FD];
unsigned int num_key_fd;
struct input_fd cmd_fds[MP_MAX_CMD_FD];
unsigned int num_cmd_fd;
struct cmd_queue key_cmd_queue;
struct cmd_queue control_cmd_queue;
int wakeup_pipe[2];
};
int async_quit_request;
static int print_key_list(m_option_t *cfg, char *optname, char *optparam);
static int print_cmd_list(m_option_t *cfg, char *optname, char *optparam);
#define OPT_BASE_STRUCT struct MPOpts
// Our command line options
static const m_option_t input_conf[] = {
OPT_STRING("conf", input.config_file, CONF_GLOBAL),
OPT_INT("ar-delay", input.ar_delay, CONF_GLOBAL),
OPT_INT("ar-rate", input.ar_rate, CONF_GLOBAL),
{ "keylist", print_key_list, CONF_TYPE_PRINT_FUNC, CONF_GLOBAL | CONF_NOCFG },
{ "cmdlist", print_cmd_list, CONF_TYPE_PRINT_FUNC, CONF_GLOBAL | CONF_NOCFG },
OPT_STRING("js-dev", input.js_dev, CONF_GLOBAL),
OPT_STRING("file", input.in_file, CONF_GLOBAL),
OPT_FLAG("default-bindings", input.default_bindings, CONF_GLOBAL),
OPT_FLAG("test", input.test, CONF_GLOBAL),
{ NULL, NULL, 0, 0, 0, 0, NULL}
};
static const m_option_t mp_input_opts[] = {
{ "input", (void *)&input_conf, CONF_TYPE_SUBCONFIG, 0, 0, 0, NULL},
OPT_FLAG("joystick", input.use_joystick, CONF_GLOBAL),
OPT_FLAG("lirc", input.use_lirc, CONF_GLOBAL),
OPT_FLAG("lircc", input.use_lircc, CONF_GLOBAL),
{ NULL, NULL, 0, 0, 0, 0, NULL}
};
static int default_cmd_func(int fd, char *buf, int l);
static const char builtin_input_conf[] =
#include "core/input/input_conf.h"
;
static char *get_key_name(int key, char *ret)
{
for (int i = 0; modifier_names[i].name; i++) {
if (modifier_names[i].key & key) {
ret = talloc_asprintf_append_buffer(ret, "%s+",
modifier_names[i].name);
key -= modifier_names[i].key;
}
}
for (int i = 0; key_names[i].name != NULL; i++) {
if (key_names[i].key == key)
return talloc_asprintf_append_buffer(ret, "%s", key_names[i].name);
}
// printable, and valid unicode range
if (key >= 32 && key <= 0x10FFFF)
return mp_append_utf8_buffer(ret, key);
// Print the hex key code
return talloc_asprintf_append_buffer(ret, "%#-8x", key);
}
static char *get_key_combo_name(int *keys, int max)
{
char *ret = talloc_strdup(NULL, "");
while (1) {
ret = get_key_name(*keys, ret);
if (--max && *++keys)
ret = talloc_asprintf_append_buffer(ret, "-");
else
break;
}
return ret;
}
bool mp_input_is_abort_cmd(int cmd_id)
{
switch (cmd_id) {
case MP_CMD_QUIT:
case MP_CMD_PLAYLIST_NEXT:
case MP_CMD_PLAYLIST_PREV:
return true;
}
return false;
}
static int queue_count_cmds(struct cmd_queue *queue)
{
int res = 0;
for (struct mp_cmd *cmd = queue->first; cmd; cmd = cmd->queue_next)
res++;
return res;
}
static bool queue_has_abort_cmds(struct cmd_queue *queue)
{
for (struct mp_cmd *cmd = queue->first; cmd; cmd = cmd->queue_next) {
if (mp_input_is_abort_cmd(cmd->id))
return true;
}
return false;
}
static void queue_remove(struct cmd_queue *queue, struct mp_cmd *cmd)
{
struct mp_cmd **p_prev = &queue->first;
while (*p_prev != cmd) {
p_prev = &(*p_prev)->queue_next;
}
// if this fails, cmd was not in the queue
assert(*p_prev == cmd);
*p_prev = cmd->queue_next;
}
static void queue_add(struct cmd_queue *queue, struct mp_cmd *cmd,
bool at_head)
{
if (at_head) {
cmd->queue_next = queue->first;
queue->first = cmd;
} else {
struct mp_cmd **p_prev = &queue->first;
while (*p_prev)
p_prev = &(*p_prev)->queue_next;
*p_prev = cmd;
cmd->queue_next = NULL;
}
}
int mp_input_add_cmd_fd(struct input_ctx *ictx, int fd, int select,
int read_func(int fd, char *dest, int size),
int close_func(int fd))
{
if (ictx->num_cmd_fd == MP_MAX_CMD_FD) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Too many command file descriptors, "
"cannot register file descriptor %d.\n", fd);
return 0;
}
if (select && fd < 0) {
mp_msg(MSGT_INPUT, MSGL_ERR,
"Invalid fd %d in mp_input_add_cmd_fd", fd);
return 0;
}
ictx->cmd_fds[ictx->num_cmd_fd] = (struct input_fd){
.fd = fd,
.read_func.cmd = read_func ? read_func : default_cmd_func,
.close_func = close_func,
.no_select = !select
};
ictx->num_cmd_fd++;
return 1;
}
void mp_input_rm_cmd_fd(struct input_ctx *ictx, int fd)
{
struct input_fd *cmd_fds = ictx->cmd_fds;
unsigned int i;
for (i = 0; i < ictx->num_cmd_fd; i++) {
if (cmd_fds[i].fd == fd)
break;
}
if (i == ictx->num_cmd_fd)
return;
if (cmd_fds[i].close_func)
cmd_fds[i].close_func(cmd_fds[i].fd);
talloc_free(cmd_fds[i].buffer);
if (i + 1 < ictx->num_cmd_fd)
memmove(&cmd_fds[i], &cmd_fds[i + 1],
(ictx->num_cmd_fd - i - 1) * sizeof(struct input_fd));
ictx->num_cmd_fd--;
}
void mp_input_rm_key_fd(struct input_ctx *ictx, int fd)
{
struct input_fd *key_fds = ictx->key_fds;
unsigned int i;
for (i = 0; i < ictx->num_key_fd; i++) {
if (key_fds[i].fd == fd)
break;
}
if (i == ictx->num_key_fd)
return;
if (key_fds[i].close_func)
key_fds[i].close_func(key_fds[i].fd);
if (i + 1 < ictx->num_key_fd)
memmove(&key_fds[i], &key_fds[i + 1],
(ictx->num_key_fd - i - 1) * sizeof(struct input_fd));
ictx->num_key_fd--;
}
int mp_input_add_key_fd(struct input_ctx *ictx, int fd, int select,
int read_func(void *ctx, int fd),
int close_func(int fd), void *ctx)
{
if (ictx->num_key_fd == MP_MAX_KEY_FD) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Too many key file descriptors, "
"cannot register file descriptor %d.\n", fd);
return 0;
}
if (select && fd < 0) {
mp_msg(MSGT_INPUT, MSGL_ERR,
"Invalid fd %d in mp_input_add_key_fd", fd);
return 0;
}
ictx->key_fds[ictx->num_key_fd] = (struct input_fd){
.fd = fd,
.read_func.key = read_func,
.close_func = close_func,
.no_select = !select,
.ctx = ctx,
};
ictx->num_key_fd++;
return 1;
}
static int parse_cycle_dir(const struct m_option *opt, struct bstr name,
struct bstr param, void *dst)
{
float val;
if (bstrcmp0(param, "up") == 0) {
val = +1;
} else if (bstrcmp0(param, "down") == 0) {
val = -1;
} else {
return m_option_type_float.parse(opt, name, param, dst);
}
*(float *)dst = val;
return 1;
}
static bool read_token(bstr str, bstr *out_rest, bstr *out_token)
{
bstr t = bstr_lstrip(str);
int next = bstrcspn(t, WHITESPACE "#");
// Handle comments
if (t.start[next] == '#')
t = bstr_splice(t, 0, next);
if (!t.len)
return false;
*out_token = bstr_splice(t, 0, next);
*out_rest = bstr_cut(t, next);
return true;
}
static bool eat_token(bstr *str, const char *tok)
{
bstr rest, token;
if (read_token(*str, &rest, &token) && bstrcmp0(token, tok) == 0) {
*str = rest;
return true;
}
return false;
}
static bool read_escaped_string(void *talloc_ctx, bstr *str, bstr *literal)
{
bstr t = *str;
char *new = talloc_strdup(talloc_ctx, "");
while (t.len) {
if (t.start[0] == '"')
break;
if (t.start[0] == '\\') {
t = bstr_cut(t, 1);
if (!mp_parse_escape(&t, &new))
goto error;
} else {
new = talloc_strndup_append_buffer(new, t.start, 1);
t = bstr_cut(t, 1);
}
}
int len = str->len - t.len;
*literal = new ? bstr0(new) : bstr_splice(*str, 0, len);
*str = bstr_cut(*str, len);
return true;
error:
talloc_free(new);
return false;
}
mp_cmd_t *mp_input_parse_cmd(bstr str, const char *loc)
{
int pausing = 0;
int on_osd = MP_ON_OSD_AUTO;
struct mp_cmd *cmd = NULL;
bstr start = str;
void *tmp = talloc_new(NULL);
if (eat_token(&str, "pausing")) {
pausing = 1;
} else if (eat_token(&str, "pausing_keep")) {
pausing = 2;
} else if (eat_token(&str, "pausing_toggle")) {
pausing = 3;
} else if (eat_token(&str, "pausing_keep_force")) {
pausing = 4;
}
str = bstr_lstrip(str);
for (const struct legacy_cmd *entry = legacy_cmds; entry->old; entry++) {
size_t old_len = strlen(entry->old);
if (bstrcasecmp(bstr_splice(str, 0, old_len),
(bstr) {(char *)entry->old, old_len}) == 0)
{
mp_tmsg(MSGT_INPUT, MSGL_WARN, "Warning: command '%s' is "
"deprecated, replaced with '%s' at %s.\n",
entry->old, entry->new, loc);
bstr s = bstr_cut(str, old_len);
str = bstr0(talloc_asprintf(tmp, "%s%.*s", entry->new, BSTR_P(s)));
start = str;
break;
}
}
if (eat_token(&str, "no-osd")) {
on_osd = MP_ON_OSD_NO;
} else if (eat_token(&str, "osd-bar")) {
on_osd = MP_ON_OSD_BAR;
} else if (eat_token(&str, "osd-msg")) {
on_osd = MP_ON_OSD_MSG;
} else if (eat_token(&str, "osd-msg-bar")) {
on_osd = MP_ON_OSD_MSG | MP_ON_OSD_BAR;
} else if (eat_token(&str, "osd-auto")) {
// default
}
int cmd_idx = 0;
while (mp_cmds[cmd_idx].name != NULL) {
if (eat_token(&str, mp_cmds[cmd_idx].name))
break;
cmd_idx++;
}
if (mp_cmds[cmd_idx].name == NULL) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command '%.*s' not found.\n",
BSTR_P(str));
goto error;
}
cmd = talloc_ptrtype(NULL, cmd);
*cmd = mp_cmds[cmd_idx];
cmd->pausing = pausing;
cmd->on_osd = on_osd;
for (int i = 0; i < MP_CMD_MAX_ARGS; i++) {
struct mp_cmd_arg *cmdarg = &cmd->args[i];
if (!cmdarg->type.type)
break;
cmd->nargs++;
str = bstr_lstrip(str);
bstr arg = {0};
if (cmdarg->type.type == &m_option_type_string &&
bstr_eatstart0(&str, "\""))
{
if (!read_escaped_string(tmp, &str, &arg)) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command %s: argument %d "
"has broken string escapes.\n", cmd->name, i + 1);
goto error;
}
if (!bstr_eatstart0(&str, "\"")) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command %s: argument %d is "
"unterminated.\n", cmd->name, i + 1);
goto error;
}
} else {
if (!read_token(str, &str, &arg))
break;
if (cmdarg->optional && bstrcmp0(arg, "-") == 0)
continue;
}
// Prevent option API from trying to deallocate static strings
cmdarg->v = ((struct mp_cmd_arg) {{0}}).v;
int r = m_option_parse(&cmdarg->type, bstr0(cmd->name), arg, &cmdarg->v);
if (r < 0) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command %s: argument %d "
"can't be parsed: %s.\n", cmd->name, i + 1,
m_option_strerror(r));
goto error;
}
if (cmdarg->type.type == &m_option_type_string)
cmdarg->v.s = talloc_steal(cmd, cmdarg->v.s);
}
bstr dummy;
if (read_token(str, &dummy, &dummy)) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command %s has trailing unused "
"arguments: '%.*s'.\n", cmd->name, BSTR_P(str));
// Better make it fatal to make it clear something is wrong.
goto error;
}
int min_args = 0;
while (min_args < MP_CMD_MAX_ARGS && cmd->args[min_args].type.type
&& !cmd->args[min_args].optional)
{
min_args++;
}
if (cmd->nargs < min_args) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command %s requires at least %d "
"arguments, we found only %d so far.\n", cmd->name, min_args,
cmd->nargs);
goto error;
}
bstr orig = (bstr) {start.start, str.start - start.start};
cmd->original = bstrdup(cmd, bstr_strip(orig));
talloc_free(tmp);
return cmd;
error:
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command was defined at %s.\n", loc);
talloc_free(cmd);
talloc_free(tmp);
return NULL;
}
#define MP_CMD_MAX_SIZE 4096
static int read_cmd(struct input_fd *mp_fd, char **ret)
{
char *end;
*ret = NULL;
// Allocate the buffer if it doesn't exist
if (!mp_fd->buffer) {
mp_fd->buffer = talloc_size(NULL, MP_CMD_MAX_SIZE);
mp_fd->pos = 0;
mp_fd->size = MP_CMD_MAX_SIZE;
}
// Get some data if needed/possible
while (!mp_fd->got_cmd && !mp_fd->eof && (mp_fd->size - mp_fd->pos > 1)) {
int r = mp_fd->read_func.cmd(mp_fd->fd, mp_fd->buffer + mp_fd->pos,
mp_fd->size - 1 - mp_fd->pos);
// Error ?
if (r < 0) {
switch (r) {
case MP_INPUT_ERROR:
case MP_INPUT_DEAD:
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Error while reading "
"command file descriptor %d: %s\n",
mp_fd->fd, strerror(errno));
case MP_INPUT_NOTHING:
return r;
case MP_INPUT_RETRY:
continue;
}
// EOF ?
} else if (r == 0) {
mp_fd->eof = 1;
break;
}
mp_fd->pos += r;
break;
}
mp_fd->got_cmd = 0;
while (1) {
int l = 0;
// Find the cmd end
mp_fd->buffer[mp_fd->pos] = '\0';
end = strchr(mp_fd->buffer, '\r');
if (end)
*end = '\n';
end = strchr(mp_fd->buffer, '\n');
// No cmd end ?
if (!end) {
// If buffer is full we must drop all until the next \n
if (mp_fd->size - mp_fd->pos <= 1) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Command buffer of file "
"descriptor %d is full: dropping content.\n",
mp_fd->fd);
mp_fd->pos = 0;
mp_fd->drop = 1;
}
break;
}
// We already have a cmd : set the got_cmd flag
else if ((*ret)) {
mp_fd->got_cmd = 1;
break;
}
l = end - mp_fd->buffer;
// Not dropping : put the cmd in ret
if (!mp_fd->drop)
*ret = talloc_strndup(NULL, mp_fd->buffer, l);
else
mp_fd->drop = 0;
mp_fd->pos -= l + 1;
memmove(mp_fd->buffer, end + 1, mp_fd->pos);
}
if (*ret)
return 1;
else
return MP_INPUT_NOTHING;
}
static int default_cmd_func(int fd, char *buf, int l)
{
while (1) {
int r = read(fd, buf, l);
// Error ?
if (r < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN)
return MP_INPUT_NOTHING;
return MP_INPUT_ERROR;
// EOF ?
}
return r;
}
}
static int read_wakeup(void *ctx, int fd)
{
char buf[100];
read(fd, buf, sizeof(buf));
return MP_INPUT_NOTHING;
}
static bool bind_matches_key(struct cmd_bind *bind, int n, int *keys);
static void append_bind_info(char **pmsg, struct cmd_bind *bind)
{
char *msg = *pmsg;
struct mp_cmd *cmd = mp_input_parse_cmd(bstr0(bind->cmd), bind->location);
bstr stripped = cmd ? cmd->original : bstr0(bind->cmd);
msg = talloc_asprintf_append(msg, " '%.*s'", BSTR_P(stripped));
if (!cmd)
msg = talloc_asprintf_append(msg, " (invalid)");
if (strcmp(bind->owner->section, "default") != 0)
msg = talloc_asprintf_append(msg, " in section {%s}",
bind->owner->section);
if (bind->owner->is_builtin) {
msg = talloc_asprintf_append(msg, " (default binding)");
} else {
msg = talloc_asprintf_append(msg, " in %s", bind->location);
}
*pmsg = msg;
}
static mp_cmd_t *handle_test(struct input_ctx *ictx, int n, int *keys)
{
char *key_buf = get_key_combo_name(keys, n);
// "$>" to disable property substitution when invoking "show_text"
char *msg = talloc_asprintf(NULL, "$>Key %s is bound to:\n", key_buf);
talloc_free(key_buf);
int count = 0;
for (struct cmd_bind_section *bs = ictx->cmd_bind_sections;
bs; bs = bs->next)
{
for (struct cmd_bind *bind = bs->cmd_binds; bind->cmd; bind++) {
if (bind_matches_key(bind, n, keys)) {
count++;
msg = talloc_asprintf_append(msg, "%d. ", count);
append_bind_info(&msg, bind);
msg = talloc_asprintf_append(msg, "\n");
}
}
}
if (!count)
msg = talloc_asprintf_append(msg, "(nothing)");
mp_cmd_t *res = mp_input_parse_cmd(bstr0("show_text \"\""), "");
res->args[0].v.s = talloc_steal(res, msg);
return res;
}
static bool bind_matches_key(struct cmd_bind *bind, int n, int *keys)
{
int found = 1, s;
for (s = 0; s < n && bind->input[s] != 0; s++) {
if (bind->input[s] != keys[s]) {
found = 0;
break;
}
}
return found && bind->input[s] == 0 && s == n;
}
static struct cmd_bind *find_bind_for_key(struct cmd_bind *binds, int n,
int *keys)
{
int j;
if (n <= 0)
return NULL;
for (j = 0; binds[j].cmd != NULL; j++) {
if (bind_matches_key(&binds[j], n, keys))
break;
}
return binds[j].cmd ? &binds[j] : NULL;
}
static struct cmd_bind_section *get_bind_section(struct input_ctx *ictx,
bool builtin, bstr section)
{
struct cmd_bind_section *bind_section = ictx->cmd_bind_sections;
if (section.len == 0)
section = bstr0("default");
while (bind_section) {
if (bstrcmp0(section, bind_section->section) == 0
&& builtin == bind_section->is_builtin)
return bind_section;
if (bind_section->next == NULL)
break;
bind_section = bind_section->next;
}
if (bind_section) {
bind_section->next = talloc_ptrtype(ictx, bind_section->next);
bind_section = bind_section->next;
} else {
ictx->cmd_bind_sections = talloc_ptrtype(ictx, ictx->cmd_bind_sections);
bind_section = ictx->cmd_bind_sections;
}
bind_section->cmd_binds = NULL;
bind_section->section = bstrdup0(bind_section, section);
bind_section->is_builtin = builtin;
bind_section->next = NULL;
return bind_section;
}
static struct cmd_bind *section_find_bind_for_key(struct input_ctx *ictx,
bool builtin, char *section,
int n, int *keys)
{
struct cmd_bind_section *bs = get_bind_section(ictx, builtin,
bstr0(section));
return bs->cmd_binds ? find_bind_for_key(bs->cmd_binds, n, keys) : NULL;
}
static mp_cmd_t *get_cmd_from_keys(struct input_ctx *ictx, int n, int *keys)
{
if (ictx->test)
return handle_test(ictx, n, keys);
struct cmd_bind *cmd
= section_find_bind_for_key(ictx, false, ictx->section, n, keys);
if (ictx->default_bindings && cmd == NULL)
cmd = section_find_bind_for_key(ictx, true, ictx->section, n, keys);
if (!(ictx->section_flags & MP_INPUT_NO_DEFAULT_SECTION)) {
if (cmd == NULL)
cmd = section_find_bind_for_key(ictx, false, "default", n, keys);
if (ictx->default_bindings && cmd == NULL)
cmd = section_find_bind_for_key(ictx, true, "default", n, keys);
}
if (cmd == NULL) {
char *key_buf = get_key_combo_name(keys, n);
mp_tmsg(MSGT_INPUT, MSGL_WARN,
"No bind found for key '%s'.\n", key_buf);
talloc_free(key_buf);
return NULL;
}
mp_cmd_t *ret = mp_input_parse_cmd(bstr0(cmd->cmd), cmd->location);
if (!ret) {
char *key_buf = get_key_combo_name(keys, n);
mp_tmsg(MSGT_INPUT, MSGL_ERR,
"Invalid command for bound key '%s': '%s'\n", key_buf, cmd->cmd);
talloc_free(key_buf);
}
return ret;
}
static mp_cmd_t *interpret_key(struct input_ctx *ictx, int code)
{
unsigned int j;
mp_cmd_t *ret;
/* On normal keyboards shift changes the character code of non-special
* keys, so don't count the modifier separately for those. In other words
* we want to have "a" and "A" instead of "a" and "Shift+A"; but a separate
* shift modifier is still kept for special keys like arrow keys.
*/
int unmod = code & ~MP_KEY_MODIFIER_MASK;
if (unmod >= 32 && unmod < MP_KEY_BASE)
code &= ~MP_KEY_MODIFIER_SHIFT;
if (code & MP_KEY_STATE_DOWN) {
if (ictx->num_key_down >= MP_MAX_KEY_DOWN) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Too many key down events "
"at the same time\n");
return NULL;
}
code &= ~MP_KEY_STATE_DOWN;
// Check if we don't already have this key as pushed
for (j = 0; j < ictx->num_key_down; j++) {
if (ictx->key_down[j] == code)
break;
}
if (j != ictx->num_key_down)
return NULL;
ictx->key_down[ictx->num_key_down] = code;
ictx->num_key_down++;
ictx->last_key_down = GetTimer();
ictx->ar_state = 0;
return NULL;
}
// button released or press of key with no separate down/up events
for (j = 0; j < ictx->num_key_down; j++) {
if (ictx->key_down[j] == code)
break;
}
bool doubleclick = code >= MP_MOUSE_BTN0_DBL && code < MP_MOUSE_BTN_DBL_END;
if (doubleclick) {
int btn = code - MP_MOUSE_BTN0_DBL + MP_MOUSE_BTN0;
if (!ictx->num_key_down
|| ictx->key_down[ictx->num_key_down - 1] != btn)
return NULL;
j = ictx->num_key_down - 1;
ictx->key_down[j] = code;
}
if (j == ictx->num_key_down) { // was not already down; add temporarily
if (ictx->num_key_down > MP_MAX_KEY_DOWN) {
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Too many key down events "
"at the same time\n");
return NULL;
}
ictx->key_down[ictx->num_key_down] = code;
ictx->num_key_down++;
ictx->last_key_down = 1;
}
// Interpret only maximal point of multibutton event
ret = ictx->last_key_down ?
get_cmd_from_keys(ictx, ictx->num_key_down, ictx->key_down)
: NULL;
if (doubleclick) {
ictx->key_down[j] = code - MP_MOUSE_BTN0_DBL + MP_MOUSE_BTN0;
return ret;
}
// Remove the key
if (j + 1 < ictx->num_key_down)
memmove(&ictx->key_down[j], &ictx->key_down[j + 1],
(ictx->num_key_down - (j + 1)) * sizeof(int));
ictx->num_key_down--;
ictx->last_key_down = 0;
ictx->ar_state = -1;
mp_cmd_free(ictx->ar_cmd);
ictx->ar_cmd = NULL;
return ret;
}
static mp_cmd_t *check_autorepeat(struct input_ctx *ictx)
{
// No input : autorepeat ?
if (ictx->ar_rate > 0 && ictx->ar_state >= 0 && ictx->num_key_down > 0
&& !(ictx->key_down[ictx->num_key_down - 1] & MP_NO_REPEAT_KEY)) {
unsigned int t = GetTimer();
// First time : wait delay
if (ictx->ar_state == 0
&& (t - ictx->last_key_down) >= ictx->ar_delay * 1000)
{
talloc_free(ictx->ar_cmd);
ictx->ar_cmd = get_cmd_from_keys(ictx, ictx->num_key_down,
ictx->key_down);
if (!ictx->ar_cmd) {
ictx->ar_state = -1;
return NULL;
}
ictx->ar_state = 1;
ictx->last_ar = t;
return mp_cmd_clone(ictx->ar_cmd);
// Then send rate / sec event
} else if (ictx->ar_state == 1
&& (t - ictx->last_ar) >= 1000000 / ictx->ar_rate) {
ictx->last_ar = t;
return mp_cmd_clone(ictx->ar_cmd);
}
}
return NULL;
}
void mp_input_feed_key(struct input_ctx *ictx, int code)
{
ictx->got_new_events = true;
if (code == MP_INPUT_RELEASE_ALL) {
memset(ictx->key_down, 0, sizeof(ictx->key_down));
ictx->num_key_down = 0;
ictx->last_key_down = 0;
return;
}
struct mp_cmd *cmd = interpret_key(ictx, code);
if (!cmd)
return;
struct cmd_queue *queue = &ictx->key_cmd_queue;
if (queue_count_cmds(queue) >= ictx->key_fifo_size &&
(!mp_input_is_abort_cmd(cmd->id) || queue_has_abort_cmds(queue)))
{
talloc_free(cmd);
return;
}
queue_add(queue, cmd, false);
}
static void read_cmd_fd(struct input_ctx *ictx, struct input_fd *cmd_fd)
{
int r;
char *text;
while ((r = read_cmd(cmd_fd, &text)) >= 0) {
ictx->got_new_events = true;
struct mp_cmd *cmd = mp_input_parse_cmd(bstr0(text), "<pipe>");
talloc_free(text);
if (cmd)
queue_add(&ictx->control_cmd_queue, cmd, false);
if (!cmd_fd->got_cmd)
return;
}
if (r == MP_INPUT_ERROR)
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Error on command file descriptor %d\n",
cmd_fd->fd);
else if (r == MP_INPUT_DEAD)
cmd_fd->dead = true;
}
static void read_key_fd(struct input_ctx *ictx, struct input_fd *key_fd)
{
int code = key_fd->read_func.key(key_fd->ctx, key_fd->fd);
if (code >= 0 || code == MP_INPUT_RELEASE_ALL) {
mp_input_feed_key(ictx, code);
return;
}
if (code == MP_INPUT_ERROR)
mp_tmsg(MSGT_INPUT, MSGL_ERR,
"Error on key input file descriptor %d\n", key_fd->fd);
else if (code == MP_INPUT_DEAD) {
mp_tmsg(MSGT_INPUT, MSGL_ERR,
"Dead key input on file descriptor %d\n", key_fd->fd);
key_fd->dead = true;
}
}
/**
* \param time time to wait at most for an event in milliseconds
*/
static void read_events(struct input_ctx *ictx, int time)
{
ictx->got_new_events = false;
struct input_fd *key_fds = ictx->key_fds;
struct input_fd *cmd_fds = ictx->cmd_fds;
for (int i = 0; i < ictx->num_key_fd; i++)
if (key_fds[i].dead) {
mp_input_rm_key_fd(ictx, key_fds[i].fd);
i--;
} else if (time && key_fds[i].no_select)
read_key_fd(ictx, &key_fds[i]);
for (int i = 0; i < ictx->num_cmd_fd; i++)
if (cmd_fds[i].dead || cmd_fds[i].eof) {
mp_input_rm_cmd_fd(ictx, cmd_fds[i].fd);
i--;
} else if (time && cmd_fds[i].no_select)
read_cmd_fd(ictx, &cmd_fds[i]);
if (ictx->got_new_events)
time = 0;
#ifdef HAVE_POSIX_SELECT
fd_set fds;
FD_ZERO(&fds);
int max_fd = 0;
for (int i = 0; i < ictx->num_key_fd; i++) {
if (key_fds[i].no_select)
continue;
if (key_fds[i].fd > max_fd)
max_fd = key_fds[i].fd;
FD_SET(key_fds[i].fd, &fds);
}
for (int i = 0; i < ictx->num_cmd_fd; i++) {
if (cmd_fds[i].no_select)
continue;
if (cmd_fds[i].fd > max_fd)
max_fd = cmd_fds[i].fd;
FD_SET(cmd_fds[i].fd, &fds);
}
struct timeval tv, *time_val;
if (time >= 0) {
tv.tv_sec = time / 1000;
tv.tv_usec = (time % 1000) * 1000;
time_val = &tv;
} else
time_val = NULL;
if (select(max_fd + 1, &fds, NULL, NULL, time_val) < 0) {
if (errno != EINTR)
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Select error: %s\n",
strerror(errno));
FD_ZERO(&fds);
}
#else
if (time)
usec_sleep(time * 1000);
#endif
for (int i = 0; i < ictx->num_key_fd; i++) {
#ifdef HAVE_POSIX_SELECT
if (!key_fds[i].no_select && !FD_ISSET(key_fds[i].fd, &fds))
continue;
#endif
read_key_fd(ictx, &key_fds[i]);
}
for (int i = 0; i < ictx->num_cmd_fd; i++) {
#ifdef HAVE_POSIX_SELECT
if (!cmd_fds[i].no_select && !FD_ISSET(cmd_fds[i].fd, &fds))
continue;
#endif
read_cmd_fd(ictx, &cmd_fds[i]);
}
}
/* To support blocking file descriptors we don't loop the read over
* every source until it's known to be empty. Instead we use this wrapper
* to run select() again.
*/
static void read_all_fd_events(struct input_ctx *ictx, int time)
{
while (1) {
read_events(ictx, time);
if (!ictx->got_new_events)
return;
time = 0;
}
}
static void read_all_events(struct input_ctx *ictx, int time)
{
getch2_poll();
read_all_fd_events(ictx, time);
}
int mp_input_queue_cmd(struct input_ctx *ictx, mp_cmd_t *cmd)
{
ictx->got_new_events = true;
if (!cmd)
return 0;
queue_add(&ictx->control_cmd_queue, cmd, false);
return 1;
}
/**
* \param peek_only when set, the returned command stays in the queue.
* Do not free the returned cmd whe you set this!
*/
mp_cmd_t *mp_input_get_cmd(struct input_ctx *ictx, int time, int peek_only)
{
if (async_quit_request) {
struct mp_cmd *cmd = mp_input_parse_cmd(bstr0("quit 1"), "");
queue_add(&ictx->control_cmd_queue, cmd, true);
}
if (ictx->control_cmd_queue.first || ictx->key_cmd_queue.first)
time = 0;
read_all_events(ictx, time);
struct cmd_queue *queue = &ictx->control_cmd_queue;
if (!queue->first)
queue = &ictx->key_cmd_queue;
if (!queue->first) {
struct mp_cmd *repeated = check_autorepeat(ictx);
if (repeated)
queue_add(queue, repeated, false);
}
struct mp_cmd *ret = queue->first;
if (!ret)
return NULL;
if (!peek_only)
queue_remove(queue, ret);
return ret;
}
void mp_cmd_free(mp_cmd_t *cmd)
{
talloc_free(cmd);
}
mp_cmd_t *mp_cmd_clone(mp_cmd_t *cmd)
{
mp_cmd_t *ret;
int i;
ret = talloc_memdup(NULL, cmd, sizeof(mp_cmd_t));
ret->name = talloc_strdup(ret, cmd->name);
for (i = 0; i < MP_CMD_MAX_ARGS; i++) {
if (cmd->args[i].type.type == &m_option_type_string)
ret->args[i].v.s = talloc_strdup(ret, cmd->args[i].v.s);
}
return ret;
}
int mp_input_get_key_from_name(const char *name)
{
int modifiers = 0;
const char *p;
while ((p = strchr(name, '+'))) {
for (struct key_name *m = modifier_names; m->name; m++)
if (!bstrcasecmp(bstr0(m->name),
(struct bstr){(char *)name, p - name})) {
modifiers |= m->key;
goto found;
}
if (!strcmp(name, "+"))
return '+' + modifiers;
return -1;
found:
name = p + 1;
}
struct bstr bname = bstr0(name);
struct bstr rest;
int code = bstr_decode_utf8(bname, &rest);
if (code >= 0 && rest.len == 0)
return code + modifiers;
if (bstr_startswith0(bname, "0x"))
return strtol(name, NULL, 16) + modifiers;
for (int i = 0; key_names[i].name != NULL; i++) {
if (strcasecmp(key_names[i].name, name) == 0)
return key_names[i].key + modifiers;
}
return -1;
}
static int get_input_from_name(char *name, int *keys)
{
char *end, *ptr;
int n = 0;
ptr = name;
n = 0;
for (end = strchr(ptr, '-'); ptr != NULL; end = strchr(ptr, '-')) {
if (end && end[1] != '\0') {
if (end[1] == '-')
end = &end[1];
end[0] = '\0';
}
keys[n] = mp_input_get_key_from_name(ptr);
if (keys[n] < 0)
return 0;
n++;
if (end && end[1] != '\0' && n < MP_MAX_KEY_DOWN)
ptr = &end[1];
else
break;
}
keys[n] = 0;
return 1;
}
static void bind_keys(struct input_ctx *ictx, bool builtin, bstr section,
const int keys[MP_MAX_KEY_DOWN + 1], bstr command,
const char *loc)
{
int i = 0, j;
struct cmd_bind *bind = NULL;
struct cmd_bind_section *bind_section = NULL;
bind_section = get_bind_section(ictx, builtin, section);
if (bind_section->cmd_binds) {
for (i = 0; bind_section->cmd_binds[i].cmd != NULL; i++) {
for (j = 0; bind_section->cmd_binds[i].input[j] == keys[j] && keys[j] != 0; j++)
/* NOTHING */;
if (keys[j] == 0 && bind_section->cmd_binds[i].input[j] == 0 ) {
bind = &bind_section->cmd_binds[i];
break;
}
}
}
if (!bind) {
bind_section->cmd_binds = talloc_realloc(bind_section,
bind_section->cmd_binds,
struct cmd_bind, i + 2);
memset(&bind_section->cmd_binds[i], 0, 2 * sizeof(struct cmd_bind));
bind = &bind_section->cmd_binds[i];
}
talloc_free(bind->cmd);
bind->cmd = bstrdup0(bind_section->cmd_binds, command);
bind->location = talloc_strdup(bind_section->cmd_binds, loc);
bind->owner = bind_section;
memcpy(bind->input, keys, (MP_MAX_KEY_DOWN + 1) * sizeof(int));
}
static int parse_config(struct input_ctx *ictx, bool builtin, bstr data,
const char *location)
{
int n_binds = 0, keys[MP_MAX_KEY_DOWN + 1];
int line_no = 0;
char *cur_loc = NULL;
while (data.len) {
line_no++;
if (cur_loc)
talloc_free(cur_loc);
cur_loc = talloc_asprintf(NULL, "%s:%d", location, line_no);
bstr line = bstr_strip_linebreaks(bstr_getline(data, &data));
line = bstr_lstrip(line);
if (line.len == 0 || bstr_startswith0(line, "#"))
continue;
struct bstr command;
// Find the key name starting a line
struct bstr keyname = bstr_split(line, WHITESPACE, &command);
command = bstr_strip(command);
if (command.len == 0) {
mp_tmsg(MSGT_INPUT, MSGL_ERR,
"Unfinished key binding: %.*s at %s\n", BSTR_P(line),
cur_loc);
continue;
}
char *name = bstrdup0(NULL, keyname);
if (!get_input_from_name(name, keys)) {
talloc_free(name);
mp_tmsg(MSGT_INPUT, MSGL_ERR,
"Unknown key '%.*s' at %s\n", BSTR_P(keyname), cur_loc);
continue;
}
talloc_free(name);
bstr section = {0};
if (bstr_startswith0(command, "{")) {
int p = bstrchr(command, '}');
if (p != -1) {
section = bstr_strip(bstr_splice(command, 1, p));
command = bstr_lstrip(bstr_cut(command, p + 1));
}
}
bind_keys(ictx, builtin, section, keys, command, cur_loc);
n_binds++;
// Print warnings if invalid commands are encountered.
talloc_free(mp_input_parse_cmd(command, cur_loc));
}
talloc_free(cur_loc);
return n_binds;
}
static int parse_config_file(struct input_ctx *ictx, char *file, bool warn)
{
if (!mp_path_exists(file)) {
mp_msg(MSGT_INPUT, warn ? MSGL_ERR : MSGL_V,
"Input config file %s not found.\n", file);
return 0;
}
stream_t *s = open_stream(file, NULL, NULL);
if (!s) {
mp_msg(MSGT_INPUT, MSGL_ERR, "Can't open input config file %s.\n", file);
return 0;
}
bstr res = stream_read_complete(s, NULL, 1000000, 0);
free_stream(s);
mp_msg(MSGT_INPUT, MSGL_V, "Parsing input config file %s\n", file);
int n_binds = parse_config(ictx, false, res, file);
talloc_free(res.start);
mp_msg(MSGT_INPUT, MSGL_V, "Input config file %s parsed: %d binds\n",
file, n_binds);
return 1;
}
void mp_input_set_section(struct input_ctx *ictx, char *name, int flags)
{
talloc_free(ictx->section);
ictx->section = talloc_strdup(ictx, name ? name : "default");
ictx->section_flags = flags;
}
char *mp_input_get_section(struct input_ctx *ictx)
{
return ictx->section;
}
struct input_ctx *mp_input_init(struct input_conf *input_conf,
bool load_default_conf)
{
struct input_ctx *ictx = talloc_ptrtype(NULL, ictx);
*ictx = (struct input_ctx){
.key_fifo_size = input_conf->key_fifo_size,
.ar_state = -1,
.ar_delay = input_conf->ar_delay,
.ar_rate = input_conf->ar_rate,
.default_bindings = input_conf->default_bindings,
.test = input_conf->test,
.wakeup_pipe = {-1, -1},
};
ictx->section = talloc_strdup(ictx, "default");
parse_config(ictx, true, bstr0(builtin_input_conf), "<default>");
#ifndef __MINGW32__
long ret = pipe(ictx->wakeup_pipe);
for (int i = 0; i < 2 && ret >= 0; i++) {
ret = fcntl(ictx->wakeup_pipe[i], F_GETFL);
if (ret < 0)
break;
ret = fcntl(ictx->wakeup_pipe[i], F_SETFL, ret | O_NONBLOCK);
}
if (ret < 0)
mp_msg(MSGT_INPUT, MSGL_ERR,
"Failed to initialize wakeup pipe: %s\n", strerror(errno));
else
mp_input_add_key_fd(ictx, ictx->wakeup_pipe[0], true, read_wakeup,
NULL, NULL);
#endif
bool config_ok = false;
if (input_conf->config_file)
config_ok = parse_config_file(ictx, input_conf->config_file, true);
if (!config_ok && load_default_conf) {
// Try global conf dir
char *file = mp_find_config_file("input.conf");
config_ok = file && parse_config_file(ictx, file, false);
talloc_free(file);
}
if (!config_ok) {
mp_msg(MSGT_INPUT, MSGL_V, "Falling back on default (hardcoded) "
"input config\n");
}
#ifdef CONFIG_JOYSTICK
if (input_conf->use_joystick) {
int fd = mp_input_joystick_init(input_conf->js_dev);
if (fd < 0)
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Can't init input joystick\n");
else
mp_input_add_key_fd(ictx, fd, 1, mp_input_joystick_read,
close, NULL);
}
#endif
#ifdef CONFIG_LIRC
if (input_conf->use_lirc) {
int fd = mp_input_lirc_init();
if (fd > 0)
mp_input_add_cmd_fd(ictx, fd, 0, mp_input_lirc_read,
mp_input_lirc_close);
}
#endif
#ifdef CONFIG_LIRCC
if (input_conf->use_lircc) {
int fd = lircc_init("mpv", NULL);
if (fd >= 0)
mp_input_add_cmd_fd(ictx, fd, 1, NULL, lircc_cleanup);
}
#endif
if (input_conf->in_file) {
int mode = O_RDONLY;
#ifndef __MINGW32__
// Use RDWR for FIFOs to ensure they stay open over multiple accesses.
// Note that on Windows due to how the API works, using RDONLY should
// be ok.
struct stat st;
if (stat(input_conf->in_file, &st) == 0 && S_ISFIFO(st.st_mode))
mode = O_RDWR;
mode |= O_NONBLOCK;
#endif
int in_file_fd = open(input_conf->in_file, mode);
if (in_file_fd >= 0)
mp_input_add_cmd_fd(ictx, in_file_fd, 1, NULL, close);
else
mp_tmsg(MSGT_INPUT, MSGL_ERR, "Can't open %s: %s\n",
input_conf->in_file, strerror(errno));
}
return ictx;
}
static void clear_queue(struct cmd_queue *queue)
{
while (queue->first) {
struct mp_cmd *item = queue->first;
queue_remove(queue, item);
talloc_free(item);
}
}
void mp_input_uninit(struct input_ctx *ictx)
{
if (!ictx)
return;
for (int i = 0; i < ictx->num_key_fd; i++) {
if (ictx->key_fds[i].close_func)
ictx->key_fds[i].close_func(ictx->key_fds[i].fd);
}
for (int i = 0; i < ictx->num_cmd_fd; i++) {
if (ictx->cmd_fds[i].close_func)
ictx->cmd_fds[i].close_func(ictx->cmd_fds[i].fd);
}
for (int i = 0; i < 2; i++) {
if (ictx->wakeup_pipe[i] != -1)
close(ictx->wakeup_pipe[i]);
}
clear_queue(&ictx->key_cmd_queue);
clear_queue(&ictx->control_cmd_queue);
talloc_free(ictx->ar_cmd);
talloc_free(ictx);
}
void mp_input_register_options(m_config_t *cfg)
{
m_config_register_options(cfg, mp_input_opts);
}
static int print_key_list(m_option_t *cfg, char *optname, char *optparam)
{
int i;
printf("\n");
for (i = 0; key_names[i].name != NULL; i++)
printf("%s\n", key_names[i].name);
return M_OPT_EXIT;
}
static int print_cmd_list(m_option_t *cfg, char *optname, char *optparam)
{
const mp_cmd_t *cmd;
int i, j;
for (i = 0; (cmd = &mp_cmds[i])->name != NULL; i++) {
printf("%-20.20s", cmd->name);
for (j = 0; j < MP_CMD_MAX_ARGS && cmd->args[j].type.type; j++) {
const char *type = cmd->args[j].type.type->name;
if (cmd->args[j].optional)
printf(" [%s]", type);
else
printf(" %s", type);
}
printf("\n");
}
return M_OPT_EXIT;
}
void mp_input_wakeup(struct input_ctx *ictx)
{
if (ictx->wakeup_pipe[1] >= 0)
write(ictx->wakeup_pipe[1], &(char){0}, 1);
}
/**
* \param time time to wait for an interruption in milliseconds
*/
int mp_input_check_interrupt(struct input_ctx *ictx, int time)
{
for (int i = 0; ; i++) {
if (async_quit_request || queue_has_abort_cmds(&ictx->key_cmd_queue) ||
queue_has_abort_cmds(&ictx->control_cmd_queue)) {
mp_tmsg(MSGT_INPUT, MSGL_WARN, "Received command to move to "
"another file. Aborting current processing.\n");
return true;
}
if (i)
return false;
read_all_events(ictx, time);
}
}
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