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lua: add basic mpv_observe_property support 

Undocumented and only the most basic functionality for now.
This commit is contained in:
wm4 2014-04-06 03:22:17 +02:00
parent 49d1b42f70
commit 6f8c5d1f6d
1 changed files with 58 additions and 0 deletions
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58
player/lua.c
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@ -414,6 +414,8 @@ static int script_resume_all(lua_State *L)
return 0;
}
static bool pushnode(lua_State *L, mpv_node *node, int depth);
static int script_wait_event(lua_State *L)
{
struct script_ctx *ctx = get_ctx(L);
@ -484,6 +486,30 @@ static int script_wait_event(lua_State *L)
lua_setfield(L, -2, "by_keep_open");
break;
}
case MPV_EVENT_PROPERTY_CHANGE: {
mpv_event_property *prop = event->data;
lua_pushstring(L, prop->name);
lua_setfield(L, -2, "name");
switch (prop->format) {
case MPV_FORMAT_NODE:
if (!pushnode(L, prop->data, 50))
luaL_error(L, "stack overflow");
break;
case MPV_FORMAT_DOUBLE:
lua_pushnumber(L, *(double *)prop->data);
break;
case MPV_FORMAT_FLAG:
lua_pushboolean(L, *(int *)prop->data);
break;
case MPV_FORMAT_STRING:
lua_pushstring(L, *(char **)prop->data);
break;
default:
lua_pushnil(L);
}
lua_setfield(L, -2, "data");
break;
}
default: ;
}
@ -852,6 +878,36 @@ static int script_get_property_native(lua_State *L)
return 2;
}
static mpv_format check_property_format(lua_State *L, int arg)
{
const char *fmts[] = {"none", "native", "bool", "string", "number", NULL};
switch (luaL_checkoption(L, arg, "none", fmts)) {
case 0: return MPV_FORMAT_NONE;
case 1: return MPV_FORMAT_NODE;
case 2: return MPV_FORMAT_FLAG;
case 3: return MPV_FORMAT_STRING;
case 4: return MPV_FORMAT_DOUBLE;
}
abort();
}
static int script_observe_property(lua_State *L)
{
struct script_ctx *ctx = get_ctx(L);
uint64_t id = luaL_checknumber(L, 1);
const char *name = luaL_checkstring(L, 2);
mpv_format format = check_property_format(L, 3);
return check_error(L, mpv_observe_property(ctx->client, id, name, format));
}
static int script_unobserve_property(lua_State *L)
{
struct script_ctx *ctx = get_ctx(L);
uint64_t id = luaL_checknumber(L, 1);
lua_pushnumber(L, mpv_unobserve_property(ctx->client, id));
return 1;
}
static int script_set_osd_ass(lua_State *L)
{
struct MPContext *mpctx = get_mpctx(L);
@ -1007,6 +1063,8 @@ static struct fn_entry fn_list[] = {
FN_ENTRY(set_property_bool),
FN_ENTRY(set_property_number),
FN_ENTRY(set_property_native),
FN_ENTRY(observe_property),
FN_ENTRY(unobserve_property),
FN_ENTRY(property_list),
FN_ENTRY(set_osd_ass),
FN_ENTRY(get_osd_resolution),