1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2007-2008 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea at videolan tod org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
35 #include <vlc_common.h>
37 #include <vlc_charset.h>
39 #include <vlc_playlist.h>
41 #include <lua.h> /* Low level lua C API */
42 #include <lauxlib.h> /* Higher level C API */
50 static const luaL_Reg vlclua_input_reg[];
51 static const luaL_Reg vlclua_input_item_reg[];
53 input_thread_t * vlclua_get_input_internal( lua_State *L )
55 playlist_t *p_playlist = vlclua_get_playlist_internal( L );
56 input_thread_t *p_input = playlist_CurrentInput( p_playlist );
57 vlclua_release_playlist_internal( p_playlist );
61 static int vlclua_input_info( lua_State *L )
63 input_thread_t * p_input = vlclua_get_input_internal( L );
66 if( !p_input ) return vlclua_error( L );
67 //vlc_mutex_lock( &input_GetItem(p_input)->lock );
68 i_cat = input_GetItem(p_input)->i_categories;
69 lua_createtable( L, 0, i_cat );
70 for( i = 0; i < i_cat; i++ )
72 info_category_t *p_category = input_GetItem(p_input)->pp_categories[i];
73 int i_infos = p_category->i_infos;
75 lua_pushstring( L, p_category->psz_name );
76 lua_createtable( L, 0, i_infos );
77 for( j = 0; j < i_infos; j++ )
79 info_t *p_info = p_category->pp_infos[j];
80 lua_pushstring( L, p_info->psz_name );
81 lua_pushstring( L, p_info->psz_value );
82 lua_settable( L, -3 );
84 lua_settable( L, -3 );
86 vlc_object_release( p_input );
90 static int vlclua_input_is_playing( lua_State *L )
92 input_thread_t * p_input = vlclua_get_input_internal( L );
93 lua_pushboolean( L, !!p_input );
95 vlc_object_release( p_input );
99 static int vlclua_input_get_title( lua_State *L )
101 input_thread_t *p_input = vlclua_get_input_internal( L );
106 lua_pushstring( L, input_GetItem(p_input)->psz_name );
107 vlc_object_release( p_input );
112 static int vlclua_input_metas_internal( lua_State *L, input_item_t *p_item )
123 psz_meta = input_item_GetName( p_item );
124 lua_pushstring( L, psz_meta );
125 lua_setfield( L, -2, "filename" );
128 #define PUSH_META( n, m ) \
129 psz_meta = input_item_GetMeta( p_item, vlc_meta_ ## n ); \
130 lua_pushstring( L, psz_meta ); \
131 lua_setfield( L, -2, m ); \
134 PUSH_META( Title, "title" );
135 PUSH_META( Artist, "artist" );
136 PUSH_META( Genre, "genre" );
137 PUSH_META( Copyright, "copyright" );
138 PUSH_META( Album, "album" );
139 PUSH_META( TrackNumber, "track_number" );
140 PUSH_META( Description, "description" );
141 PUSH_META( Rating, "rating" );
142 PUSH_META( Date, "date" );
143 PUSH_META( Setting, "setting" );
144 PUSH_META( URL, "url" );
145 PUSH_META( Language, "language" );
146 PUSH_META( NowPlaying, "now_playing" );
147 PUSH_META( Publisher, "publisher" );
148 PUSH_META( EncodedBy, "encoded_by" );
149 PUSH_META( ArtworkURL, "artwork_url" );
150 PUSH_META( TrackID, "track_id" );
157 static int vlclua_input_metas( lua_State *L )
159 input_thread_t *p_input = vlclua_get_input_internal( L );
160 input_item_t *p_item = p_input && p_input->p
161 ? input_GetItem( p_input ) : NULL;
162 vlclua_input_metas_internal( L, p_item );
164 vlc_object_release( p_input );
168 static int vlclua_input_stats( lua_State *L )
170 input_thread_t *p_input = vlclua_get_input_internal( L );
171 input_item_t *p_item = p_input && p_input->p
172 ? input_GetItem( p_input ) : NULL;
176 vlc_mutex_lock( &p_item->p_stats->lock );
177 #define STATS_INT( n ) lua_pushinteger( L, p_item->p_stats->i_ ## n ); \
178 lua_setfield( L, -2, #n );
179 #define STATS_FLOAT( n ) lua_pushnumber( L, p_item->p_stats->f_ ## n ); \
180 lua_setfield( L, -2, #n );
181 STATS_INT( read_bytes )
182 STATS_FLOAT( input_bitrate )
183 STATS_INT( demux_read_bytes )
184 STATS_FLOAT( demux_bitrate )
185 STATS_INT( demux_corrupted )
186 STATS_INT( demux_discontinuity )
187 STATS_INT( decoded_video )
188 STATS_INT( displayed_pictures )
189 STATS_INT( lost_pictures )
190 STATS_INT( decoded_audio )
191 STATS_INT( played_abuffers )
192 STATS_INT( lost_abuffers )
193 STATS_INT( sent_packets )
194 STATS_INT( sent_bytes )
195 STATS_FLOAT( send_bitrate )
198 vlc_mutex_unlock( &p_item->p_stats->lock );
201 vlc_object_release( p_input );
205 static int vlclua_input_add_subtitle( lua_State *L )
207 input_thread_t *p_input = vlclua_get_input_internal( L );
209 return luaL_error( L, "can't add subtitle: no current input" );
210 if( !lua_isstring( L, 1 ) )
211 return luaL_error( L, "vlc.input.add_subtitle() usage: (url)" );
212 const char *psz_url = luaL_checkstring( L, 1 );
213 input_AddSubtitle( p_input, psz_url, false );
214 vlc_object_release( p_input );
218 /*****************************************************************************
220 *****************************************************************************/
222 static input_item_t* vlclua_input_item_get_internal( lua_State *L )
224 input_item_t **pp_item = luaL_checkudata( L, 1, "input_item" );
225 input_item_t *p_item = *pp_item;
228 luaL_error( L, "script went completely foobar" );
233 /* Garbage collection of an input_item_t */
234 static int vlclua_input_item_delete( lua_State *L )
236 input_item_t **pp_item = luaL_checkudata( L, 1, "input_item" );
237 input_item_t *p_item = *pp_item;
240 return luaL_error( L, "script went completely foobar" );
243 vlc_gc_decref( p_item );
248 static int vlclua_input_item_get( lua_State *L, input_item_t *p_item )
250 vlc_gc_incref( p_item );
251 input_item_t **pp = lua_newuserdata( L, sizeof( void* ) );
254 if( luaL_newmetatable( L, "input_item" ) )
257 luaL_register( L, NULL, vlclua_input_item_reg );
258 lua_setfield( L, -2, "__index" );
259 lua_pushcfunction( L, vlclua_input_item_delete );
260 lua_setfield( L, -2, "__gc" );
263 lua_setmetatable(L, -2);
268 static int vlclua_input_item_get_current( lua_State *L )
270 input_thread_t *p_input = vlclua_get_input_internal( L );
271 input_item_t *p_item = ( p_input && p_input->p ) ? input_GetItem( p_input ) : NULL;
275 if( p_input ) vlc_object_release( p_input );
279 vlclua_input_item_get( L, p_item );
281 if( p_input ) vlc_object_release( p_input );
285 static int vlclua_input_item_metas( lua_State *L )
287 vlclua_input_metas_internal( L, vlclua_input_item_get_internal( L ) );
291 static int vlclua_input_item_set_meta( lua_State *L )
293 input_item_t *p_item = vlclua_input_item_get_internal( L );
294 lua_settop( L, 1 + 2 ); // two arguments
295 const char *psz_name = luaL_checkstring( L, 2 ),
296 *psz_value = luaL_checkstring( L, 3 );
298 #define META_TYPE( n ) { #n, vlc_meta_ ## n }
301 const char *psz_name;
302 vlc_meta_type_t type;
303 } pp_meta_types[] = {
307 META_TYPE( Copyright ),
309 META_TYPE( TrackNumber ),
310 META_TYPE( Description ),
313 META_TYPE( Setting ),
315 META_TYPE( Language ),
316 META_TYPE( NowPlaying ),
317 META_TYPE( Publisher ),
318 META_TYPE( EncodedBy ),
319 META_TYPE( ArtworkURL ),
320 META_TYPE( TrackID ),
324 vlc_meta_type_t type = vlc_meta_Title;
326 for( unsigned i = 0; i < VLC_META_TYPE_COUNT; i++ )
328 if( !strcasecmp( pp_meta_types[i].psz_name, psz_name ) )
330 type = pp_meta_types[i].type;
336 vlc_meta_AddExtra( p_item->p_meta, psz_name, psz_value );
340 input_item_SetMeta( p_item, type, psz_value );
344 /*****************************************************************************
346 *****************************************************************************/
347 static const luaL_Reg vlclua_input_reg[] = {
348 { "info", vlclua_input_info },
349 { "is_playing", vlclua_input_is_playing },
350 { "get_title", vlclua_input_get_title },
351 { "metas", vlclua_input_metas },
352 { "item", vlclua_input_item_get_current },
353 { "stats", vlclua_input_stats },
354 { "add_subtitle", vlclua_input_add_subtitle },
358 void luaopen_input( lua_State *L )
361 luaL_register( L, NULL, vlclua_input_reg );
362 lua_setfield( L, -2, "input" );
365 static const luaL_Reg vlclua_input_item_reg[] = {
366 { "metas", vlclua_input_item_metas },
367 { "set_meta", vlclua_input_item_set_meta },
372 void luaopen_input_item( lua_State *L, input_item_t *item )
375 vlclua_input_item_get( L, item );
376 lua_setfield( L, -2, "item" );