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lua: add a --lua-opts option, which can be queried by scripts

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The values set by this new option can be queried by Lua scripts using
the mp.getopt() function. The function takes a string parameter, and
returns the value of the first key that matches. If no key matches, nil
is returned.
This commit is contained in:
wm4 2014-01-16 23:06:06 +01:00
parent 82067e6ac3
commit d3b5643589
4 changed files with 23 additions and 0 deletions
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5
DOCS/man/en/options.rst
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@ -1296,6 +1296,11 @@ OPTIONS
Load a Lua script. You can load multiple scripts by separating them with
commas (``,``).
``--lua-opts=key1=value1,key2=value2,...``
Set options for scripts. A Lua script can query an option by key. If an
option is used and what semantics the option value has depends entirely on
the loaded Lua scripts. Values not claimed by any scripts are ignored.
``--mc=<seconds/frame>``
Maximum A-V sync correction per frame (in seconds)

1
options/options.c
View File

@ -239,6 +239,7 @@ const m_option_t mp_opts[] = {
#if HAVE_LUA
OPT_STRINGLIST("lua", lua_files, CONF_GLOBAL),
OPT_KEYVALUELIST("lua-opts", lua_opts, CONF_GLOBAL),
OPT_FLAG("osc", lua_load_osc, CONF_GLOBAL),
#endif

1
options/options.h
View File

@ -52,6 +52,7 @@ typedef struct MPOpts {
char **reset_options;
char **lua_files;
char **lua_opts;
int lua_load_osc;
struct m_obj_settings *audio_driver_list, *ao_defs;

16
player/lua.c
View File

@ -676,6 +676,21 @@ static int script_format_time(lua_State *L)
return 1;
}
static int script_getopt(lua_State *L)
{
struct MPContext *mpctx = get_mpctx(L);
char **opts = mpctx->opts->lua_opts;
const char *name = luaL_checkstring(L, 1);
for (int n = 0; opts && opts[n] && opts[n + 1]; n++) {
if (strcmp(opts[n], name) == 0) {
lua_pushstring(L, opts[n + 1]);
return 1;
}
}
return 0;
}
struct fn_entry {
const char *name;
int (*fn)(lua_State *L);
@ -702,6 +717,7 @@ static struct fn_entry fn_list[] = {
FN_ENTRY(input_set_section_mouse_area),
FN_ENTRY(format_time),
FN_ENTRY(enable_messages),
FN_ENTRY(getopt),
};
// On stack: mp table