shithub: sox

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Add comment explaining where Lua function comes from in drain.

--- a/src/luaeff.c

+++ b/src/luaeff.c

@@ -109,10 +109,12 @@

   st_sample_t_array_t inarr;

   if (!lua->gotdata) {

+    /* Function is left on stack by getopts */

+

     inarr.size = lua->isamp;

     inarr.data = lua->data;

     st_lua_pusharray(lua->L, inarr);

-    

+

     if ((ret = lua_pcall(lua->L, 1, 1, 0)) != 0) {

       st_fail("error in Lua script: %d", ret);

       return ST_EOF;