mpv/input/input.h

312 lines
8.5 KiB
C

/*
* 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.
*/
#ifndef MPLAYER_INPUT_H
#define MPLAYER_INPUT_H
// All command IDs
typedef enum {
MP_CMD_SEEK,
MP_CMD_AUDIO_DELAY,
MP_CMD_QUIT,
MP_CMD_PAUSE,
MP_CMD_GRAB_FRAMES, // deprecated: was a no-op command for years
MP_CMD_PLAY_TREE_STEP,
MP_CMD_PLAY_TREE_UP_STEP,
MP_CMD_PLAY_ALT_SRC_STEP,
MP_CMD_SUB_DELAY,
MP_CMD_OSD,
MP_CMD_VOLUME,
MP_CMD_MIXER_USEMASTER,
MP_CMD_CONTRAST,
MP_CMD_BRIGHTNESS,
MP_CMD_HUE,
MP_CMD_SATURATION,
MP_CMD_FRAMEDROPPING,
MP_CMD_TV_STEP_CHANNEL,
MP_CMD_TV_STEP_NORM,
MP_CMD_TV_STEP_CHANNEL_LIST,
MP_CMD_VO_FULLSCREEN,
MP_CMD_SUB_POS,
MP_CMD_DVDNAV,
MP_CMD_SCREENSHOT,
MP_CMD_PANSCAN,
MP_CMD_MUTE,
MP_CMD_LOADFILE,
MP_CMD_LOADLIST,
MP_CMD_VF_CHANGE_RECTANGLE,
MP_CMD_GAMMA,
MP_CMD_SUB_VISIBILITY,
MP_CMD_VOBSUB_LANG, // deprecated: combined with SUB_SELECT
MP_CMD_MENU,
MP_CMD_SET_MENU,
MP_CMD_GET_TIME_LENGTH,
MP_CMD_GET_PERCENT_POS,
MP_CMD_SUB_STEP,
MP_CMD_TV_SET_CHANNEL,
MP_CMD_EDL_MARK,
MP_CMD_SUB_ALIGNMENT,
MP_CMD_TV_LAST_CHANNEL,
MP_CMD_OSD_SHOW_TEXT,
MP_CMD_TV_SET_FREQ,
MP_CMD_TV_SET_NORM,
MP_CMD_TV_SET_BRIGHTNESS,
MP_CMD_TV_SET_CONTRAST,
MP_CMD_TV_SET_HUE,
MP_CMD_TV_SET_SATURATION,
MP_CMD_GET_VO_FULLSCREEN,
MP_CMD_GET_SUB_VISIBILITY,
MP_CMD_SUB_FORCED_ONLY,
MP_CMD_VO_ONTOP,
MP_CMD_SUB_SELECT,
MP_CMD_VO_ROOTWIN,
MP_CMD_SWITCH_VSYNC,
MP_CMD_SWITCH_RATIO,
MP_CMD_FRAME_STEP,
MP_CMD_SPEED_INCR,
MP_CMD_SPEED_MULT,
MP_CMD_SPEED_SET,
MP_CMD_RUN,
MP_CMD_SUB_LOG,
MP_CMD_SWITCH_AUDIO,
MP_CMD_GET_TIME_POS,
MP_CMD_SUB_LOAD,
MP_CMD_SUB_REMOVE,
MP_CMD_KEYDOWN_EVENTS,
MP_CMD_VO_BORDER,
MP_CMD_SET_PROPERTY,
MP_CMD_SET_PROPERTY_OSD,
MP_CMD_GET_PROPERTY,
MP_CMD_OSD_SHOW_PROPERTY_TEXT,
MP_CMD_OSD_SHOW_PROGRESSION,
MP_CMD_SEEK_CHAPTER,
MP_CMD_FILE_FILTER,
MP_CMD_GET_FILENAME,
MP_CMD_GET_VIDEO_CODEC,
MP_CMD_GET_VIDEO_BITRATE,
MP_CMD_GET_VIDEO_RESOLUTION,
MP_CMD_GET_AUDIO_CODEC,
MP_CMD_GET_AUDIO_BITRATE,
MP_CMD_GET_AUDIO_SAMPLES,
MP_CMD_GET_META_TITLE,
MP_CMD_GET_META_ARTIST,
MP_CMD_GET_META_ALBUM,
MP_CMD_GET_META_YEAR,
MP_CMD_GET_META_COMMENT,
MP_CMD_GET_META_TRACK,
MP_CMD_GET_META_GENRE,
MP_CMD_RADIO_STEP_CHANNEL,
MP_CMD_RADIO_SET_CHANNEL,
MP_CMD_RADIO_SET_FREQ,
MP_CMD_SET_MOUSE_POS,
MP_CMD_STEP_PROPERTY,
MP_CMD_STEP_PROPERTY_OSD,
MP_CMD_RADIO_STEP_FREQ,
MP_CMD_TV_STEP_FREQ,
MP_CMD_LOOP,
MP_CMD_BALANCE,
MP_CMD_SUB_SCALE,
MP_CMD_TV_TELETEXT_ADD_DEC,
MP_CMD_TV_TELETEXT_GO_LINK,
MP_CMD_TV_START_SCAN,
MP_CMD_SUB_SOURCE,
MP_CMD_SUB_FILE,
MP_CMD_SUB_VOB,
MP_CMD_SUB_DEMUX,
MP_CMD_SWITCH_ANGLE,
MP_CMD_ASS_USE_MARGINS,
MP_CMD_SWITCH_TITLE,
MP_CMD_STOP,
/// DVDNAV commands
MP_CMD_DVDNAV_UP = 1000,
MP_CMD_DVDNAV_DOWN,
MP_CMD_DVDNAV_LEFT,
MP_CMD_DVDNAV_RIGHT,
MP_CMD_DVDNAV_MENU,
MP_CMD_DVDNAV_SELECT,
MP_CMD_DVDNAV_PREVMENU,
MP_CMD_DVDNAV_MOUSECLICK,
/// DVB commands
MP_CMD_DVB_SET_CHANNEL = 5101,
/// Console commands
MP_CMD_CHELP = 7000,
MP_CMD_CEXIT,
MP_CMD_CHIDE,
/// Audio Filter commands
MP_CMD_AF_SWITCH,
MP_CMD_AF_ADD,
MP_CMD_AF_DEL,
MP_CMD_AF_CLR,
} mp_command_type;
// The arg types
#define MP_CMD_ARG_INT 0
#define MP_CMD_ARG_FLOAT 1
#define MP_CMD_ARG_STRING 2
#define MP_CMD_ARG_VOID 3
#ifndef MP_CMD_MAX_ARGS
#define MP_CMD_MAX_ARGS 10
#endif
// Error codes for the drivers
// An error occurred but we can continue
#define MP_INPUT_ERROR -1
// A fatal error occurred, this driver should be removed
#define MP_INPUT_DEAD -2
// No input was available
#define MP_INPUT_NOTHING -3
//! Input will be available if you try again
#define MP_INPUT_RETRY -4
// For the key's drivers, if possible you can send key up and key down
// events. Key up is the default, to send a key down you must use the
// OR operator between the key code and MP_KEY_DOWN.
#define MP_KEY_DOWN (1<<29)
// Use this when the key shouldn't be auto-repeated (like mouse buttons)
#define MP_NO_REPEAT_KEY (1<<28)
#ifndef MP_MAX_KEY_DOWN
#define MP_MAX_KEY_DOWN 32
#endif
struct input_ctx;
typedef union mp_cmd_arg_value {
int i;
float f;
char* s;
void* v;
} mp_cmd_arg_value_t;
typedef struct mp_cmd_arg {
int type;
mp_cmd_arg_value_t v;
} mp_cmd_arg_t;
typedef struct mp_cmd {
int id;
char* name;
int nargs;
mp_cmd_arg_t args[MP_CMD_MAX_ARGS];
int pausing;
} mp_cmd_t;
// These typedefs are for the drivers. They are the functions used to retrieve
// the next key code or command.
// These functions should return the key code or one of the error codes
typedef int (*mp_key_func_t)(void *ctx, int fd);
// These functions should act like read but they must use our error code (if needed ;-)
typedef int (*mp_cmd_func_t)(int fd,char* dest,int size);
// These are used to close the driver
typedef void (*mp_close_func_t)(int fd);
// Set this to grab all incoming key codes
extern int (*mp_input_key_cb)(int code);
// Should return 1 if the command was processed
typedef int (*mp_input_cmd_filter)(mp_cmd_t *cmd, void *ctx);
// This function adds a new key driver.
// The first arg is a file descriptor (use a negative value if you don't use any fd)
// The second arg tells if we use select on the fd to know if something is available.
// The third arg is optional. If null a default function wich reads an int from the
// fd will be used.
// The last arg can be NULL if nothing is needed to close the driver. The close
// function can be used
int mp_input_add_cmd_fd(struct input_ctx *ictx, int fd, int select,
mp_cmd_func_t read_func, mp_close_func_t close_func);
// This removes a cmd driver, you usually don't need to use it.
void mp_input_rm_cmd_fd(struct input_ctx *ictx, int fd);
// The args are the same as for the key's drivers. If you don't use any valid fd you MUST
// give a read_func.
int mp_input_add_key_fd(struct input_ctx *ictx, int fd, int select,
mp_key_func_t read_func, mp_close_func_t close_func,
void *ctx);
// As for the cmd one you usually don't need this function.
void mp_input_rm_key_fd(struct input_ctx *ictx, int fd);
/// Get input key from its name.
int mp_input_get_key_from_name(const char *name);
// This function can be used to put a command in the system again. It's used by libmpdemux
// when it performs a blocking operation to resend the command it received to the main
// loop.
int mp_input_queue_cmd(struct input_ctx *ictx, mp_cmd_t* cmd);
// This function retrieves the next available command waiting no more than time msec.
// If pause is true, the next input will always return a pause command.
mp_cmd_t*
mp_input_get_cmd(struct input_ctx *ictx, int time, int peek_only);
mp_cmd_t*
mp_input_parse_cmd(char* str);
/**
* Parse and queue commands separated by '\n'.
* @return count of commands new queued.
*/
int mp_input_parse_and_queue_cmds(struct input_ctx *ictx, const char *str);
/// These filters allow you to process the command before MPlayer.
/// If a filter returns a true value mp_input_get_cmd will return NULL.
void
mp_input_add_cmd_filter(mp_input_cmd_filter, void* ctx);
// After getting a command from mp_input_get_cmd you need to free it using this
// function
void
mp_cmd_free(mp_cmd_t* cmd);
// This creates a copy of a command (used by the auto repeat stuff).
mp_cmd_t*
mp_cmd_clone(mp_cmd_t* cmd);
// Set current input section
void mp_input_set_section(struct input_ctx *ictx, char *name);
// Get current input section
char *mp_input_get_section(struct input_ctx *ictx);
// When you create a new driver you should add it in these 2 functions.
struct input_conf;
struct input_ctx *mp_input_init(struct input_conf *input_conf);
void mp_input_uninit(struct input_ctx *ictx);
struct m_config;
void mp_input_register_options(struct m_config *cfg);
// Interruptible usleep: (used by libmpdemux)
int
mp_input_check_interrupt(struct input_ctx *ictx, int time);
extern int async_quit_request;
#endif /* MPLAYER_INPUT_H */