static int vlclua_msg_warn( lua_State *L )
{
int i_top = lua_gettop( L );
vlc_object_t *p_this = vlclua_get_this( L );
int i;
for( i = 1; i <= i_top; i++ )
msg_Warn( p_this, "%s", luaL_checkstring( L, i ) );
return 0;
}
/** Gets the OS file descriptor mapped to a VLC Lua file descriptor */
static int vlclua_fd_get( lua_State *L, unsigned idx )
{
intf_thread_t *intf = (intf_thread_t *)vlclua_get_this( L );
intf_sys_t *sys = intf->p_sys;
if( idx < 3u )
return idx;
idx -= 3;
return (idx < sys->fdc) ? sys->fdv[idx] : -1;
}
static int vlclua_playlist_enqueue( lua_State *L )
{
int i_count;
vlc_object_t *p_this = vlclua_get_this( L );
playlist_t *p_playlist = vlclua_get_playlist_internal( L );
i_count = vlclua_playlist_add_internal( p_this, L, p_playlist,
NULL, false );
lua_pushinteger( L, i_count );
return 1;
}
static int vlclua_demux_read( lua_State *L )
{
demux_t *p_demux = (demux_t *)vlclua_get_this( L );
const uint8_t *p_read;
int n = luaL_checkint( L, 1 );
int i_read = stream_Peek( p_demux->s, &p_read, n );
lua_pushlstring( L, (const char *)p_read, i_read );
int i_seek = stream_Read( p_demux->s, NULL, i_read );
assert(i_read==i_seek);
return 1;
}
/* Takes a { fd : events } table as first arg and modifies it to { fd : revents } */
static int vlclua_net_poll( lua_State *L )
{
intf_thread_t *intf = (intf_thread_t *)vlclua_get_this( L );
intf_sys_t *sys = intf->p_sys;
luaL_checktype( L, 1, LUA_TTABLE );
int i_fds = 1;
lua_pushnil( L );
while( lua_next( L, 1 ) )
{
i_fds++;
lua_pop( L, 1 );
}
struct pollfd *p_fds = xmalloc( i_fds * sizeof( *p_fds ) );
int *luafds = xmalloc( i_fds * sizeof( *luafds ) );
lua_pushnil( L );
int i = 1;
p_fds[0].fd = sys->fd[0];
p_fds[0].events = POLLIN;
while( lua_next( L, 1 ) )
{
luafds[i] = luaL_checkinteger( L, -2 );
p_fds[i].fd = vlclua_fd_get( L, luafds[i] );
p_fds[i].events = luaL_checkinteger( L, -1 );
p_fds[i].events &= POLLIN | POLLOUT | POLLPRI;
lua_pop( L, 1 );
i++;
}
int i_ret;
do
i_ret = poll( p_fds, i_fds, -1 );
while( i_ret == -1 && errno == EINTR );
for( i = 1; i < i_fds; i++ )
{
lua_pushinteger( L, luafds[i] );
lua_pushinteger( L, p_fds[i].revents );
lua_settable( L, 1 );
}
lua_pushinteger( L, i_ret );
if( p_fds[0].revents )
i_ret = luaL_error( L, "Interrupted." );
else
i_ret = 1;
free( luafds );
free( p_fds );
return i_ret;
}
/** Gets the VLC Lua file descriptor mapped from an OS file descriptor */
static int vlclua_fd_get_lua( lua_State *L, int fd )
{
intf_thread_t *intf = (intf_thread_t *)vlclua_get_this( L );
intf_sys_t *sys = intf->p_sys;
if( (unsigned)fd < 3u )
return fd;
for( unsigned i = 0; i < sys->fdc; i++ )
if( sys->fdv[i] == fd )
return 3 + i;
return -1;
}
static int vlclua_sd_add_item( lua_State *L )
{
services_discovery_t *p_sd = (services_discovery_t *)vlclua_get_this( L );
if( lua_istable( L, -1 ) )
{
lua_getfield( L, -1, "path" );
if( lua_isstring( L, -1 ) )
{
char **ppsz_options = NULL;
int i_options = 0;
const char *psz_path = lua_tostring( L, -1 );
vlclua_read_options( p_sd, L, &i_options, &ppsz_options );
input_item_t *p_input = input_item_NewExt( p_sd, psz_path, psz_path,
i_options,
(const char **)ppsz_options,
VLC_INPUT_OPTION_TRUSTED, -1 );
lua_pop( L, 1 );
if( p_input )
{
vlclua_read_meta_data( p_sd, L, p_input );
/* This one is to be tested... */
vlclua_read_custom_meta_data( p_sd, L, p_input );
/* The duration is given in seconds, convert to microseconds */
lua_getfield( L, -1, "duration" );
if( lua_isnumber( L, -1 ) )
input_item_SetDuration( p_input, (lua_tonumber( L, -1 )*1e6) );
else if( !lua_isnil( L, -1 ) )
msg_Warn( p_sd, "Item duration should be a number (in seconds)." );
lua_pop( L, 1 );
services_discovery_AddItem( p_sd, p_input, NULL );
input_item_t **udata = (input_item_t **)
lua_newuserdata( L, sizeof( input_item_t * ) );
*udata = p_input;
if( luaL_newmetatable( L, "input_item_t" ) )
{
lua_pushliteral( L, "none of your business" );
lua_setfield( L, -2, "__metatable" );
}
lua_setmetatable( L, -2 );
vlc_gc_decref( p_input );
}
while( i_options > 0 )
free( ppsz_options[--i_options] );
free( ppsz_options );
}
else
msg_Err( p_sd, "vlc.sd.add_item: the \"path\" parameter can't be empty" );
}
else
msg_Err( p_sd, "Error parsing add_item arguments" );
return 1;
}
static int vlclua_node_add_node( lua_State *L )
{
services_discovery_t *p_sd = (services_discovery_t *)vlclua_get_this( L );
input_item_t **pp_node = (input_item_t **)luaL_checkudata( L, 1, "node" );
if( *pp_node )
{
if( lua_istable( L, -1 ) )
{
lua_getfield( L, -1, "title" );
if( lua_isstring( L, -1 ) )
{
const char *psz_name = lua_tostring( L, -1 );
input_item_node_t *p_input_node = input_item_node_Create( *pp_node );
input_item_t *p_input = input_item_NewWithType( VLC_OBJECT( p_sd ),
"vlc://nop",
psz_name, 0, NULL, 0,
-1, ITEM_TYPE_NODE );
lua_pop( L, 1 );
if( p_input )
{
lua_getfield( L, -1, "arturl" );
if( lua_isstring( L, -1 ) && strcmp( lua_tostring( L, -1 ), "" ) )
{
char *psz_value = strdup( lua_tostring( L, -1 ) );
EnsureUTF8( psz_value );
msg_Dbg( p_sd, "ArtURL: %s", psz_value );
input_item_SetArtURL( p_input, psz_value );
free( psz_value );
}
input_item_node_AppendItem( p_input_node, p_input );
input_item_node_PostAndDelete( p_input_node );
input_item_t **udata = (input_item_t **)
lua_newuserdata( L, sizeof( input_item_t * ) );
*udata = p_input;
if( luaL_newmetatable( L, "node" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_node_reg );
lua_setfield( L, -2, "__index" );
}
lua_setmetatable( L, -2 );
}
}
else
msg_Err( p_sd, "node:add_node: the \"title\" parameter can't be empty" );
}
else
msg_Err( p_sd, "Error parsing add_node arguments" );
}
return 1;
}
static int vlclua_demux_peek( lua_State *L )
{
stream_t *s = (stream_t *)vlclua_get_this(L);
int n = luaL_checkinteger( L, 1 );
const uint8_t *p_peek;
ssize_t val = vlc_stream_Peek(s->s, &p_peek, n);
if (val > 0)
lua_pushlstring(L, (const char *)p_peek, val);
else
lua_pushnil( L );
return 1;
}
static int vlclua_sd_remove_item( lua_State *L )
{
services_discovery_t *p_sd = (services_discovery_t *)vlclua_get_this( L );
if( !lua_isnil( L, 1 ) )
{
input_item_t **pp_input = luaL_checkudata( L, 1, "input_item_t" );
if( *pp_input )
services_discovery_RemoveItem( p_sd, *pp_input );
/* Make sure we won't try to remove it again */
*pp_input = NULL;
}
return 1;
}
static int vlclua_demux_peek( lua_State *L )
{
demux_t *p_demux = (demux_t *)vlclua_get_this( L );
int n = (int)luaL_checkinteger( L, 1 );
const uint8_t *p_peek;
int i_peek = vlc_stream_Peek( p_demux->s, &p_peek, n );
if( i_peek > 0 )
lua_pushlstring( L, (const char *)p_peek, i_peek );
else
lua_pushnil( L );
return 1;
}
static int vlclua_sd_add_node( lua_State *L )
{
services_discovery_t *p_sd = (services_discovery_t *)vlclua_get_this( L );
if( lua_istable( L, -1 ) )
{
lua_getfield( L, -1, "title" );
if( lua_isstring( L, -1 ) )
{
const char *psz_name = lua_tostring( L, -1 );
input_item_t *p_input = input_item_NewWithType( "vlc://nop",
psz_name, 0, NULL, 0,
-1, ITEM_TYPE_NODE );
lua_pop( L, 1 );
if( p_input )
{
lua_getfield( L, -1, "arturl" );
if( lua_isstring( L, -1 ) && strcmp( lua_tostring( L, -1 ), "" ) )
{
char *psz_value = strdup( lua_tostring( L, -1 ) );
EnsureUTF8( psz_value );
msg_Dbg( p_sd, "ArtURL: %s", psz_value );
/** @todo Ask for art download if not local file */
input_item_SetArtURL( p_input, psz_value );
free( psz_value );
}
lua_pop( L, 1 );
lua_getfield( L, -1, "category" );
if( lua_isstring( L, -1 ) )
services_discovery_AddItem( p_sd, p_input, luaL_checkstring( L, -1 ) );
else
services_discovery_AddItem( p_sd, p_input, NULL );
input_item_t **udata = (input_item_t **)
lua_newuserdata( L, sizeof( input_item_t * ) );
*udata = p_input;
if( luaL_newmetatable( L, "node" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_node_reg );
lua_setfield( L, -2, "__index" );
}
lua_setmetatable( L, -2 );
}
}
else
msg_Err( p_sd, "vlc.sd.add_node: the \"title\" parameter can't be empty" );
}
else
msg_Err( p_sd, "Error parsing add_node arguments" );
return 1;
}
static int vlclua_stream_add_filter( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
/* Make sure that we have 1 argument (+ 1 object) */
lua_settop( L, 2 );
stream_t **pp_stream = (stream_t **)luaL_checkudata( L, 1, "stream" );
if( !*pp_stream ) return vlclua_error( L );
const char *psz_filter = NULL;
if( lua_isstring( L, 2 ) )
psz_filter = lua_tostring( L, 2 );
if( !psz_filter || !*psz_filter )
{
msg_Dbg( p_this, "adding all automatic stream filters" );
while( true )
{
/* Add next automatic stream */
stream_t *p_filtered = vlc_stream_FilterNew( *pp_stream, NULL );
if( !p_filtered )
break;
else
{
msg_Dbg( p_this, "inserted an automatic stream filter" );
*pp_stream = p_filtered;
}
}
luaL_getmetatable( L, "stream" );
lua_setmetatable( L, 1 );
}
else
{
/* Add a named filter */
stream_t *p_filter = vlc_stream_FilterNew( *pp_stream, psz_filter );
if( !p_filter )
msg_Dbg( p_this, "Unable to open requested stream filter '%s'",
psz_filter );
else
{
*pp_stream = p_filter;
luaL_getmetatable( L, "stream" );
lua_setmetatable( L, 1 );
}
}
return 1;
}
static int vlclua_demux_readline( lua_State *L )
{
stream_t *s = (stream_t *)vlclua_get_this(L);
char *line = vlc_stream_ReadLine(s->s);
if (line != NULL)
{
lua_pushstring(L, line);
free(line);
}
else
lua_pushnil( L );
return 1;
}
static int vlclua_demux_readline( lua_State *L )
{
demux_t *p_demux = (demux_t *)vlclua_get_this( L );
char *psz_line = stream_ReadLine( p_demux->s );
if( psz_line )
{
lua_pushstring( L, psz_line );
free( psz_line );
}
else
{
lua_pushnil( L );
}
return 1;
}
static int vlclua_stream_new( lua_State *L )
{
vlc_object_t * p_this = vlclua_get_this( L );
const char * psz_url = luaL_checkstring( L, 1 );
stream_t *p_stream = vlc_stream_NewURL( p_this, psz_url );
/* XXX: For hysterical raisins, append one inflate decompression stream
* filter automatically (if applicable). */
if( p_stream != NULL )
{
stream_t *inflated = vlc_stream_FilterNew( p_stream, "inflate" );
if( inflated != NULL )
p_stream = inflated;
}
return vlclua_stream_new_inner( L, p_stream );
}
static int vlclua_demux_read( lua_State *L )
{
demux_t *p_demux = (demux_t *)vlclua_get_this( L );
const uint8_t *p_read;
int n = (int)luaL_checkinteger( L, 1 );
int i_read = vlc_stream_Peek( p_demux->s, &p_read, n );
if( i_read > 0 )
{
lua_pushlstring( L, (const char *)p_read, i_read );
int i_seek = vlc_stream_Read( p_demux->s, NULL, i_read );
assert( i_read == i_seek );
}
else
lua_pushnil( L );
return 1;
}
static int vlclua_libvlc_command( lua_State *L )
{
vlc_object_t * p_this = vlclua_get_this( L );
const char *psz_cmd;
vlc_value_t val_arg;
psz_cmd = luaL_checkstring( L, 1 );
val_arg.psz_string = strdup( luaL_optstring( L, 2, "" ) );
lua_pop( L, 2 );
int i_type = var_Type( p_this->p_libvlc, psz_cmd );
if( ! (i_type & VLC_VAR_ISCOMMAND) )
{
free( val_arg.psz_string );
return luaL_error( L, "libvlc's \"%s\" is not a command",
psz_cmd );
}
return vlclua_push_ret( L,
var_Set( p_this->p_libvlc, psz_cmd, val_arg ) );
}
static int vlclua_httpd_handler_callback(
httpd_handler_sys_t *p_sys, httpd_handler_t *p_handler, char *psz_url,
uint8_t *psz_request, int i_type, uint8_t *p_in, int i_in,
char *psz_remote_addr, char *psz_remote_host,
uint8_t **pp_data, int *pi_data )
{
VLC_UNUSED(p_handler);
lua_State *L = p_sys->L;
/* function data */
lua_pushvalue( L, 1 );
lua_pushvalue( L, 2 );
/* function data function data */
lua_pushstring( L, psz_url );
/* function data function data url */
lua_pushstring( L, (const char *)psz_request );
/* function data function data url request */
lua_pushinteger( L, i_type ); /* Q: what does i_type stand for? */
/* function data function data url request type */
lua_pushlstring( L, (const char *)p_in, i_in ); /* Q: what do p_in contain? */
/* function data function data url request type in */
lua_pushstring( L, psz_remote_addr );
/* function data function data url request type in addr */
lua_pushstring( L, psz_remote_host );
/* function data function data url request type in addr host */
if( lua_pcall( L, 7, 1, 0 ) )
{
/* function data err */
vlc_object_t *p_this = vlclua_get_this( L );
const char *psz_err = lua_tostring( L, -1 );
msg_Err( p_this, "Error while running the lua HTTPd handler "
"callback: %s", psz_err );
lua_settop( L, 2 );
/* function data */
return VLC_EGENERIC;
}
/* function data outdata */
*pp_data = vlclua_todata( L, -1, pi_data );
lua_pop( L, 1 );
/* function data */
return VLC_SUCCESS;
}
static int vlclua_var_inherit( lua_State *L )
{
vlc_value_t val;
vlc_object_t *p_obj;
if( lua_type( L, 1 ) == LUA_TNIL )
p_obj = vlclua_get_this( L );
else
{
vlc_object_t **pp_obj = luaL_checkudata( L, 1, "vlc_object" );
p_obj = *pp_obj;
}
const char *psz_var = luaL_checkstring( L, 2 );
int i_type = config_GetType( p_obj, psz_var );
if( var_Inherit( p_obj, psz_var, i_type, &val ) != VLC_SUCCESS )
return 0;
lua_pop( L, 2 );
return vlclua_pushvalue( L, i_type, val, true );
}
static int vlclua_demux_read( lua_State *L )
{
stream_t *s = (stream_t *)vlclua_get_this(L);
int n = luaL_checkinteger( L, 1 );
char *buf = malloc(n);
if (buf != NULL)
{
ssize_t val = vlc_stream_Read(s->s, buf, n);
if (val > 0)
lua_pushlstring(L, buf, val);
else
lua_pushnil( L );
free(buf);
}
else
lua_pushnil( L );
return 1;
}
static int vlclua_vlm_new( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
vlm_t *p_vlm = vlm_New( p_this );
if( !p_vlm )
return luaL_error( L, "Cannot start VLM." );
vlm_t **pp_vlm = lua_newuserdata( L, sizeof( vlm_t * ) );
*pp_vlm = p_vlm;
if( luaL_newmetatable( L, "vlm" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_vlm_reg );
lua_setfield( L, -2, "__index" );
lua_pushcfunction( L, vlclua_vlm_delete );
lua_setfield( L, -2, "__gc" );
}
lua_setmetatable( L, -2 );
return 1;
}
static int vlclua_command( lua_State *L )
{
vlc_object_t * p_this = vlclua_get_this( L );
char *psz_msg;
const char *psz_name = luaL_checkstring( L, 1 );
const char *psz_cmd = luaL_checkstring( L, 2 );
const char *psz_arg = luaL_checkstring( L, 3 );
int ret = var_Command( p_this, psz_name, psz_cmd, psz_arg, &psz_msg );
lua_pop( L, 3 );
if( psz_msg )
{
lua_pushstring( L, psz_msg );
free( psz_msg );
}
else
{
lua_pushliteral( L, "" );
}
return vlclua_push_ret( L, ret ) + 1;
}
/** Unmaps an OS file descriptor from VLC Lua */
static void vlclua_fd_unmap( lua_State *L, unsigned idx )
{
intf_thread_t *intf = (intf_thread_t *)vlclua_get_this( L );
intf_sys_t *sys = intf->p_sys;
int fd = -1;
if( idx < 3u )
return; /* Never close stdin/stdout/stderr. */
idx -= 3;
if( idx >= sys->fdc )
return;
fd = sys->fdv[idx];
sys->fdc--;
memmove( sys->fdv + idx, sys->fdv + idx + 1,
(sys->fdc - idx) * sizeof (sys->fdv[0]) );
/* realloc() not really needed */
#ifndef NDEBUG
for( unsigned i = 0; i < sys->fdc; i++ )
assert( sys->fdv[i] != fd );
#endif
}
static int vlclua_xml_create_reader( lua_State *L )
{
vlc_object_t *obj = vlclua_get_this( L );
stream_t *p_stream = *(stream_t **)luaL_checkudata( L, 2, "stream" );
xml_reader_t *p_reader = xml_ReaderCreate( obj, p_stream );
if( !p_reader )
return luaL_error( L, "XML reader creation failed." );
xml_reader_t **pp_reader = lua_newuserdata( L, sizeof( xml_reader_t * ) );
*pp_reader = p_reader;
if( luaL_newmetatable( L, "xml_reader" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_xml_reader_reg );
lua_setfield( L, -2, "__index" );
lua_pushcfunction( L, vlclua_xml_reader_delete );
lua_setfield( L, -2, "__gc" );
}
lua_setmetatable( L, -2 );
return 1;
}
static int vlclua_get_libvlc( lua_State *L )
{
vlclua_push_vlc_object( L, vlclua_get_this( L )->p_libvlc,
NULL );
return 1;
}
static int vlclua_menu_prev( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
osd_MenuPrev( p_this );
return 0;
}
static int vlclua_menu_activate( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
osd_MenuActivate( p_this );
return 0;
}
static int vlclua_menu_down( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
osd_MenuDown( p_this );
return 0;
}
static int vlclua_menu_next( lua_State *L )
{
vlc_object_t *p_this = vlclua_get_this( L );
osd_MenuNext( p_this );
return 0;
}
