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options: allow changing options at runtime 

Allow changing all options at runtime, except some cherry-picked
options, which are disabled with M_OPT_FIXED.
This commit is contained in:
wm4 2014-02-25 23:59:27 +01:00
parent 279bd8db1f
commit f3c933e5d3
5 changed files with 55 additions and 43 deletions
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6
DOCS/man/en/input.rst
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@ -1009,8 +1009,10 @@ an option at runtime.
See ``--vf`` and the ``vf`` command.
``options/<name>`` (RW)
Read-only access to value of option ``--<name>``. If the player is in idle
mode, the option can be changed by writing to this property.
Read-only access to value of option ``--<name>``. Most options can be
changed at runtime by writing to this property. Note that many options
require reloading the file for changes to take effect. If there is an
equivalent property, prefer setting the property instead.
Property Expansion
------------------

11
libmpv/client.h
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@ -561,11 +561,14 @@ void mpv_free_node_contents(mpv_node *node);
/**
* Set an option. Note that you can't normally set options during runtime. It
* works in uninitialized state (see mpv_create()), and in some cases in idle
* mode.
* works in uninitialized state (see mpv_create()), and in some cases in at
* runtime.
*
* You can use mpv_set_property() to change options during playback, but this
* does not work with all options.
* Changing options at runtime does not always work. For some options, attempts
* to change them simply fails. Many other options may require reloading the
* file for changes to take effect. In general, you should prefer calling
* mpv_set_property() to change settings during playback, because the property
* mechanism guarantees that changes take effect immediately.
*
* @param name Option name. This is the same as on the mpv command line, but
* without the leading "--".

16
options/m_option.h
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@ -350,6 +350,12 @@ struct m_option {
// This option can't be set per-file when used with struct m_config.
#define M_OPT_GLOBAL (1 << 4)
// Can not be freely changed at runtime (normally, all options can be changed,
// even if the settings don't get effective immediately). Note that an option
// might still change even if this is set, e.g. via properties or per-file
// options.
#define M_OPT_FIXED (1 << 5)
// The option should be set during command line pre-parsing
#define M_OPT_PRE_PARSE (1 << 6)
@ -361,7 +367,7 @@ struct m_option {
#define CONF_MAX M_OPT_MAX
#define CONF_RANGE M_OPT_RANGE
#define CONF_NOCFG M_OPT_NOCFG
#define CONF_GLOBAL M_OPT_GLOBAL
#define CONF_GLOBAL (M_OPT_GLOBAL | M_OPT_FIXED)
#define CONF_PRE_PARSE M_OPT_PRE_PARSE
// These flags are used to describe special parser capabilities or behavior.
@ -661,10 +667,10 @@ extern const char m_option_path_separator;
#define OPT_STRING_VALIDATE(...) \
OPT_STRING_VALIDATE_(__VA_ARGS__, .type = &m_option_type_string)
#define OPT_PRINT(optname, fn) \
{.name = optname, \
.flags = M_OPT_GLOBAL | M_OPT_NOCFG | M_OPT_PRE_PARSE, \
.type = &m_option_type_print_fn, \
#define OPT_PRINT(optname, fn) \
{.name = optname, \
.flags = M_OPT_FIXED | M_OPT_GLOBAL | M_OPT_NOCFG | M_OPT_PRE_PARSE, \
.type = &m_option_type_print_fn, \
.priv = MP_EXPECT_TYPE(m_opt_print_fn, fn) }
// subconf must have the type struct m_sub_options.

61
options/options.c
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@ -208,18 +208,19 @@ extern const m_option_t mp_input_opts[];
const m_option_t mp_opts[] = {
// handled in command line pre-parser (parse_commandline.c)
{"v", NULL, CONF_TYPE_STORE, CONF_GLOBAL | CONF_NOCFG, 0, 0, NULL},
{"playlist", NULL, CONF_TYPE_STRING, CONF_NOCFG | M_OPT_MIN, 1, 0, NULL},
{"{", NULL, CONF_TYPE_STORE, CONF_NOCFG, 0, 0, NULL},
{"}", NULL, CONF_TYPE_STORE, CONF_NOCFG, 0, 0, NULL},
{"playlist", NULL, CONF_TYPE_STRING, CONF_NOCFG | M_OPT_MIN | M_OPT_FIXED,
1, 0, NULL},
{"{", NULL, CONF_TYPE_STORE, CONF_NOCFG | M_OPT_FIXED, 0, 0, NULL},
{"}", NULL, CONF_TYPE_STORE, CONF_NOCFG | M_OPT_FIXED, 0, 0, NULL},
// handled in m_config.c
{ "include", NULL, CONF_TYPE_STRING },
{ "profile", NULL, CONF_TYPE_STRING_LIST },
{ "show-profile", NULL, CONF_TYPE_STRING, CONF_NOCFG },
{ "list-options", NULL, CONF_TYPE_STORE, CONF_NOCFG },
{ "include", NULL, CONF_TYPE_STRING, M_OPT_FIXED },
{ "profile", NULL, CONF_TYPE_STRING_LIST, M_OPT_FIXED },
{ "show-profile", NULL, CONF_TYPE_STRING, CONF_NOCFG | M_OPT_FIXED },
{ "list-options", NULL, CONF_TYPE_STORE, CONF_NOCFG | M_OPT_FIXED },
// handled in main.c (looks at the raw argv[])
{"leak-report", NULL, CONF_TYPE_STORE, CONF_GLOBAL | CONF_NOCFG },
{"leak-report", NULL, CONF_TYPE_STORE, CONF_GLOBAL | CONF_NOCFG | M_OPT_FIXED },
OPT_FLAG("shuffle", shuffle, CONF_GLOBAL | CONF_NOCFG),
@ -238,11 +239,11 @@ const m_option_t mp_opts[] = {
OPT_FLAG("config", load_config, CONF_GLOBAL | CONF_NOCFG | CONF_PRE_PARSE),
OPT_STRING("config-dir", force_configdir,
CONF_GLOBAL | CONF_NOCFG | CONF_PRE_PARSE),
OPT_STRINGLIST("reset-on-next-file", reset_options, CONF_GLOBAL),
OPT_STRINGLIST("reset-on-next-file", reset_options, M_OPT_GLOBAL),
#if HAVE_LUA
OPT_STRINGLIST("lua", lua_files, CONF_GLOBAL),
OPT_KEYVALUELIST("lua-opts", lua_opts, CONF_GLOBAL),
OPT_KEYVALUELIST("lua-opts", lua_opts, M_OPT_GLOBAL),
OPT_FLAG("osc", lua_load_osc, CONF_GLOBAL),
#endif
@ -256,7 +257,8 @@ const m_option_t mp_opts[] = {
({"no", 0}),
OPTDEF_INT(320)),
OPT_FLOATRANGE("cache-min", stream_cache_min_percent, 0, 0, 99),
OPT_FLOATRANGE("cache-seek-min", stream_cache_seek_min_percent, 0, 0, 99),
OPT_FLOATRANGE("cache-seek-min", stream_cache_seek_min_percent, 0,
0, 99),
OPT_CHOICE_OR_INT("cache-pause", stream_cache_pause, 0,
0, 40, ({"no", -1})),
@ -289,7 +291,7 @@ const m_option_t mp_opts[] = {
// ------------------------- demuxer options --------------------
OPT_CHOICE_OR_INT("frames", play_frames, 0, 0, INT_MAX,
OPT_CHOICE_OR_INT("frames", play_frames, M_OPT_FIXED, 0, INT_MAX,
({"all", -1})),
// seek to byte/seconds position
@ -298,7 +300,7 @@ const m_option_t mp_opts[] = {
OPT_REL_TIME("end", play_end, 0),
OPT_REL_TIME("length", play_length, 0),
OPT_FLAG("pause", pause, 0),
OPT_FLAG("pause", pause, M_OPT_FIXED),
OPT_FLAG("keep-open", keep_open, 0),
// AVI and Ogg only: (re)build index at startup
@ -353,11 +355,12 @@ const m_option_t mp_opts[] = {
OPT_FLOATRANGE("mc", default_max_pts_correction, 0, 0, 100),
// force video/audio rate:
OPT_DOUBLE("fps", force_fps, CONF_MIN, 0),
OPT_DOUBLE("fps", force_fps, CONF_MIN | M_OPT_FIXED),
OPT_INTRANGE("srate", force_srate, 0, 1000, 8*48000),
OPT_CHMAP("channels", audio_output_channels, CONF_MIN, .min = 1),
OPT_AUDIOFORMAT("format", audio_output_format, 0),
OPT_DOUBLE("speed", playback_speed, M_OPT_RANGE, .min = 0.01, .max = 100.0),
OPT_DOUBLE("speed", playback_speed, M_OPT_RANGE | M_OPT_FIXED,
.min = 0.01, .max = 100.0),
// set a-v distance
OPT_FLOATRANGE("audio-delay", audio_delay, 0, -100.0, 100.0),
@ -365,11 +368,11 @@ const m_option_t mp_opts[] = {
// ------------------------- codec/vfilter options --------------------
OPT_SETTINGSLIST("af-defaults", af_defs, 0, &af_obj_list),
OPT_SETTINGSLIST("af*", af_settings, 0, &af_obj_list),
OPT_SETTINGSLIST("af*", af_settings, M_OPT_FIXED, &af_obj_list),
OPT_SETTINGSLIST("vf-defaults", vf_defs, 0, &vf_obj_list),
OPT_SETTINGSLIST("vf*", vf_settings, 0, &vf_obj_list),
OPT_SETTINGSLIST("vf*", vf_settings, M_OPT_FIXED, &vf_obj_list),
OPT_CHOICE("deinterlace", deinterlace, M_OPT_OPTIONAL_PARAM,
OPT_CHOICE("deinterlace", deinterlace, M_OPT_OPTIONAL_PARAM | M_OPT_FIXED,
({"auto", -1},
{"no", 0},
{"yes", 1}, {"", 1})),
@ -460,8 +463,8 @@ const m_option_t mp_opts[] = {
OPT_SETTINGSLIST("ao-defaults", ao_defs, 0, &ao_obj_list),
OPT_FLAG("fixed-vo", fixed_vo, CONF_GLOBAL),
OPT_FLAG("force-window", force_vo, CONF_GLOBAL),
OPT_FLAG("ontop", vo.ontop, 0),
OPT_FLAG("border", vo.border, 0),
OPT_FLAG("ontop", vo.ontop, M_OPT_FIXED),
OPT_FLAG("border", vo.border, M_OPT_FIXED),
OPT_CHOICE("softvol", softvol, 0,
({"no", SOFTVOL_NO},
@ -475,7 +478,7 @@ const m_option_t mp_opts[] = {
{"no", 0},
{"yes", 1}, {"", 1})),
OPT_STRING("volume-restore-data", mixer_restore_volume_data, 0),
OPT_FLAG("gapless-audio", gapless_audio, 0),
OPT_FLAG("gapless-audio", gapless_audio, M_OPT_FIXED),
OPT_GEOMETRY("geometry", vo.geometry, 0),
OPT_SIZE_BOX("autofit", vo.autofit, 0),
@ -488,11 +491,11 @@ const m_option_t mp_opts[] = {
OPT_FLOATRANGE("monitoraspect", vo.force_monitor_aspect, 0, 0.0, 9.0),
OPT_FLOATRANGE("monitorpixelaspect", vo.monitor_pixel_aspect, 0, 0.2, 9.0),
// start in fullscreen mode:
OPT_FLAG("fullscreen", vo.fullscreen, 0),
OPT_FLAG("fs", vo.fullscreen, 0),
OPT_FLAG("fullscreen", vo.fullscreen, M_OPT_FIXED),
OPT_FLAG("fs", vo.fullscreen, M_OPT_FIXED),
// set fullscreen switch method (workaround for buggy WMs)
OPT_INTRANGE("fsmode-dontuse", vo.fsmode, 0, 31, 4096),
OPT_FLAG("native-keyrepeat", vo.native_keyrepeat, 0),
OPT_FLAG("native-keyrepeat", vo.native_keyrepeat, M_OPT_FIXED),
OPT_FLOATRANGE("panscan", vo.panscan, 0, 0.0, 1.0),
OPT_FLOATRANGE("video-zoom", vo.zoom, 0, -20.0, 20.0),
OPT_FLOATRANGE("video-pan-x", vo.pan_x, 0, -3.0, 3.0),
@ -547,7 +550,7 @@ const m_option_t mp_opts[] = {
//---------------------- mplayer-only options ------------------------
OPT_FLAG("use-filedir-conf", use_filedir_conf, CONF_GLOBAL),
OPT_FLAG("use-filedir-conf", use_filedir_conf, M_OPT_GLOBAL),
OPT_CHOICE("osd-level", osd_level, 0,
({"0", 0}, {"1", 1}, {"2", 2}, {"3", 3})),
OPT_INTRANGE("osd-duration", osd_duration, 0, 0, 3600000),
@ -562,10 +565,10 @@ const m_option_t mp_opts[] = {
{"yes", 1},
{"hard", 2})),
OPT_FLAG("untimed", untimed, 0),
OPT_FLAG("untimed", untimed, M_OPT_FIXED),
OPT_STRING("stream-capture", stream_capture, 0),
OPT_STRING("stream-dump", stream_dump, 0),
OPT_STRING("stream-capture", stream_capture, M_OPT_FIXED),
OPT_STRING("stream-dump", stream_dump, M_OPT_FIXED),
OPT_CHOICE_OR_INT("loop", loop_times, M_OPT_GLOBAL, 2, 10000,
({"no", -1}, {"1", -1},
@ -609,7 +612,7 @@ const m_option_t mp_opts[] = {
OPT_STRING("osd-status-msg", osd_status_msg, 0),
OPT_FLAG("slave-broken", slave_mode, CONF_GLOBAL),
OPT_FLAG("idle", player_idle_mode, CONF_GLOBAL),
OPT_FLAG("idle", player_idle_mode, M_OPT_GLOBAL),
OPT_INTRANGE("key-fifo-size", input.key_fifo_size, CONF_GLOBAL, 2, 65000),
OPT_FLAG("consolecontrols", consolecontrols, CONF_GLOBAL),
OPT_FLAG("mouse-movements", vo.enable_mouse_movements, CONF_GLOBAL),

4
player/command.c
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@ -1991,9 +1991,7 @@ static int access_options(struct m_property_action_arg *ka, MPContext *mpctx)
m_option_copy(opt->opt, ka->arg, opt->data);
return M_PROPERTY_OK;
case M_PROPERTY_SET:
if (!(mpctx->initialized_flags & INITIALIZED_PLAYBACK) &&
!(opt->opt->flags & (M_OPT_PRE_PARSE | M_OPT_GLOBAL)))
{
if (!(opt->opt->flags & (M_OPT_PRE_PARSE | M_OPT_FIXED))) {
m_option_copy(opt->opt, opt->data, ka->arg);
return M_PROPERTY_OK;
}