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Commit 0a6985a4 authored by Pierre d'Herbemont's avatar Pierre d'Herbemont
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modules/demux/playlist: Remove luaplaylist now that it is merged in the lua module.

parent 318ef763
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modules/demux/playlist/Modules.am
View file @ 0a6985a4
......@@ -15,5 +15,3 @@ SOURCES_playlist = \
gvp.c \
ifo.c \
$(NULL)
SOURCES_luaplaylist = luaplaylist.c
modules/demux/playlist/luaplaylist.c deleted 100644 → 0
View file @ 318ef763
/*****************************************************************************
* luaplaylist.c : Lua playlist demux module
*****************************************************************************
* Copyright (C) 2007 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc_demux.h>
#include <vlc_url.h>
#include <vlc_strings.h>
#include <vlc_charset.h>
#include <errno.h> /* ENOMEM */
#include "playlist.h"
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <lua.h> /* Low level lua C API */
#include <lauxlib.h> /* Higher level C API */
#include <lualib.h> /* Lua libs */
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int E_(Import_LuaPlaylist)( vlc_object_t *p_this );
static void E_(Close_LuaPlaylist)( vlc_object_t *p_this );
static int Demux( demux_t *p_demux );
static int Control( demux_t *p_demux, int i_query, va_list args );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
add_shortcut( "lua" );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_DEMUX );
set_shortname( _("Lua Playlist") );
set_description( _("Lua Playlist Parser Interface") );
set_capability( "demux2", 9 );
set_callbacks( E_(Import_LuaPlaylist), E_(Close_LuaPlaylist) );
vlc_module_end();
/*****************************************************************************
*
*****************************************************************************/
struct demux_sys_t
{
lua_State *p_state;
char *psz_filename;
};
/*****************************************************************************
*
*****************************************************************************/
static demux_t *vlclua_get_demux( lua_State *p_state )
{
demux_t *p_demux;
lua_getglobal( p_state, "vlc" );
lua_getfield( p_state, lua_gettop( p_state ), "private" );
p_demux = (demux_t*)lua_topointer( p_state, lua_gettop( p_state ) );
lua_pop( p_state, 2 );
return p_demux;
}
static int vlclua_peek( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
int n;
byte_t *p_peek;
int i_peek;
if( !i ) return 0;
n = lua_tonumber( p_state, 1 );
lua_pop( p_state, i );
i_peek = stream_Peek( p_demux->s, &p_peek, n );
lua_pushlstring( p_state, (const char *)p_peek, i_peek );
return 1;
}
static int vlclua_read( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
int n;
byte_t *p_read;
int i_read;
if( !i ) return 0;
n = lua_tonumber( p_state, 1 );
lua_pop( p_state, i );
i_read = stream_Read( p_demux->s, &p_read, n );
lua_pushlstring( p_state, (const char *)p_read, i_read );
return 1;
}
static int vlclua_readline( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
char *psz_line = stream_ReadLine( p_demux->s );
if( psz_line )
{
lua_pushstring( p_state, psz_line );
free( psz_line );
}
else
{
lua_pushnil( p_state );
}
return 1;
}
static int vlclua_decode_uri( lua_State *p_state )
{
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
char *psz_string = strdup( psz_cstring );
lua_pop( p_state, i );
decode_URI( psz_string );
lua_pushstring( p_state, psz_string );
free( psz_string );
return 1;
}
static int vlclua_resolve_xml_special_chars( lua_State *p_state )
{
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
char *psz_string = strdup( psz_cstring );
lua_pop( p_state, i );
resolve_xml_special_chars( psz_string );
lua_pushstring( p_state, psz_string );
free( psz_string );
return 1;
}
static int vlclua_msg_dbg( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
msg_Dbg( p_demux, "%s: %s", p_demux->p_sys->psz_filename, psz_cstring );
return 0;
}
static int vlclua_msg_warn( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
msg_Warn( p_demux, "%s: %s", p_demux->p_sys->psz_filename, psz_cstring );
return 0;
}
static int vlclua_msg_err( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
msg_Err( p_demux, "%s: %s", p_demux->p_sys->psz_filename, psz_cstring );
return 0;
}
static int vlclua_msg_info( lua_State *p_state )
{
demux_t *p_demux = vlclua_get_demux( p_state );
int i = lua_gettop( p_state );
if( !i ) return 0;
const char *psz_cstring = lua_tostring( p_state, 1 );
if( !psz_cstring ) return 0;
msg_Info( p_demux, "%s: %s", p_demux->p_sys->psz_filename, psz_cstring );
return 0;
}
/* Functions to register */
static luaL_Reg p_reg[] =
{
{ "peek", vlclua_peek },
{ "decode_uri", vlclua_decode_uri },
{ "resolve_xml_special_chars", vlclua_resolve_xml_special_chars },
{ "msg_dbg", vlclua_msg_dbg },
{ "msg_warn", vlclua_msg_warn },
{ "msg_err", vlclua_msg_err },
{ "msg_info", vlclua_msg_info },
{ NULL, NULL }
};
/* Functions to register for parse() function call only */
static luaL_Reg p_reg_parse[] =
{
{ "read", vlclua_read },
{ "readline", vlclua_readline },
{ NULL, NULL }
};
/*****************************************************************************
*
*****************************************************************************/
static int file_select( const char *file )
{
int i = strlen( file );
return i > 4 && !strcmp( file+i-4, ".lua" );
}
static int file_compare( const char **a, const char **b )
{
return strcmp( *a, *b );
}
/*****************************************************************************
* Import_LuaPlaylist: main import function
*****************************************************************************/
int E_(Import_LuaPlaylist)( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t *)p_this;
lua_State *p_state;
int i_ret = VLC_EGENERIC;
char *psz_filename = NULL;
DIR *dir = NULL;
char **ppsz_filelist = NULL;
char **ppsz_fileend = NULL;
char **ppsz_file;
char *ppsz_dir_list[] = { NULL, NULL, NULL, NULL };
char **ppsz_dir;
p_demux->p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
if( !p_demux->p_sys )
{
return VLC_ENOMEM;
}
p_demux->p_sys->psz_filename = NULL;
p_demux->pf_control = Control;
p_demux->pf_demux = Demux;
/* Initialise Lua state structure */
p_state = luaL_newstate();
if( !p_state )
{
msg_Err( p_demux, "Could not create new Lua State" );
free( p_demux->p_sys );
return VLC_EGENERIC;
}
p_demux->p_sys->p_state = p_state;
/* Load Lua libraries */
luaL_openlibs( p_state ); /* FIXME: Don't open all the libs? */
luaL_register( p_state, "vlc", p_reg );
lua_pushlightuserdata( p_state, p_demux );
lua_setfield( p_state, lua_gettop( p_state ) - 1, "private" );
lua_pushstring( p_state, p_demux->psz_path );
lua_setfield( p_state, lua_gettop( p_state ) - 1, "path" );
lua_pushstring( p_state, p_demux->psz_access );
lua_setfield( p_state, lua_gettop( p_state ) - 1, "access" );
lua_pop( p_state, 1 );
if( asprintf( &ppsz_dir_list[0], "%s" DIR_SEP CONFIG_DIR DIR_SEP "luaplaylist",
p_demux->p_libvlc->psz_homedir ) < -1 )
return VLC_ENOMEM;
# if defined(__APPLE__) || defined(SYS_BEOS) || defined(WIN32)
{
const char *psz_vlcpath = config_GetDataDir();
if( asprintf( &ppsz_dir_list[1], "%s" DIR_SEP "luaplaylist", psz_vlcpath ) < 0 )
return VLC_ENOMEM;
if( asprintf( &ppsz_dir_list[2], "%s" DIR_SEP "share" DIR_SEP "luaplaylist", psz_vlcpath ) < 0 )
return VLC_ENOMEM;
}
# else
{
# ifdef HAVE_SYS_STAT_H
struct stat stat_info;
if( ( utf8_stat( "share/luaplaylist", &stat_info ) == -1 )
|| !S_ISDIR( stat_info.st_mode ) )
{
ppsz_dir_list[1] = strdup( DATA_PATH "/luaplaylist" );
}
else
# endif
{
ppsz_dir_list[1] = strdup( "share/luaplaylist" );
}
}
# endif
for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
{
int i_files;
if( ppsz_filelist )
{
for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
ppsz_file++ )
free( *ppsz_file );
free( ppsz_filelist );
ppsz_filelist = NULL;
}
if( dir )
{
closedir( dir );
}
msg_Dbg( p_demux, "Trying Lua scripts in %s", *ppsz_dir );
dir = utf8_opendir( *ppsz_dir );
if( !dir ) continue;
i_files = utf8_loaddir( dir, &ppsz_filelist, file_select, file_compare );
if( i_files < 1 ) continue;
ppsz_fileend = ppsz_filelist + i_files;
for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend; ppsz_file++ )
{
free( psz_filename ); psz_filename = NULL;
asprintf( &psz_filename, "%s" DIR_SEP "%s", *ppsz_dir, *ppsz_file );
msg_Dbg( p_demux, "Trying Lua playlist script %s", psz_filename );
p_demux->p_sys->psz_filename = psz_filename;
/* Ugly hack to delete previous versions of the probe() and parse()
* functions. */
lua_pushnil( p_state );
lua_pushnil( p_state );
lua_setglobal( p_state, "probe" );
lua_setglobal( p_state, "parse" );
/* Load and run the script(s) */
if( luaL_dofile( p_state, psz_filename ) )
{
msg_Warn( p_demux, "Error loading script %s: %s", psz_filename,
lua_tostring( p_state, lua_gettop( p_state ) ) );
lua_pop( p_state, 1 );
continue;
}
lua_getglobal( p_state, "probe" );
if( !lua_isfunction( p_state, lua_gettop( p_state ) ) )
{
msg_Warn( p_demux, "Error while runing script %s, "
"function probe() not found", psz_filename );
lua_pop( p_state, 1 );
continue;
}
if( lua_pcall( p_state, 0, 1, 0 ) )
{
msg_Warn( p_demux, "Error while runing script %s, "
"function probe(): %s", psz_filename,
lua_tostring( p_state, lua_gettop( p_state ) ) );
lua_pop( p_state, 1 );
continue;
}
if( lua_gettop( p_state ) )
{
if( lua_toboolean( p_state, 1 ) )
{
msg_Dbg( p_demux, "Lua playlist script %s's "
"probe() function was successful", psz_filename );
i_ret = VLC_SUCCESS;
}
lua_pop( p_state, 1 );
if( i_ret == VLC_SUCCESS ) break;
}
}
if( i_ret == VLC_SUCCESS ) break;
}
if( ppsz_filelist )
{
for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
ppsz_file++ )
free( *ppsz_file );
free( ppsz_filelist );
}
for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
free( *ppsz_dir );
if( dir ) closedir( dir );
if( i_ret != VLC_SUCCESS )
E_(Close_LuaPlaylist)( p_this );
return i_ret;
}
/*****************************************************************************
* Deactivate: frees unused data
*****************************************************************************/
void E_(Close_LuaPlaylist)( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t *)p_this;
lua_close( p_demux->p_sys->p_state );
free( p_demux->p_sys->psz_filename );
free( p_demux->p_sys );
}
static inline void read_options( demux_t *p_demux, lua_State *p_state,
int o, int t, int *pi_options,
char ***pppsz_options )
{
lua_getfield( p_state, o, "options" );
if( lua_istable( p_state, t ) )
{
lua_pushnil( p_state );
while( lua_next( p_state, t ) )
{
if( lua_isstring( p_state, t+2 ) )
{
char *psz_option = strdup( lua_tostring( p_state, t+2 ) );
msg_Dbg( p_demux, "Option: %s", psz_option );
INSERT_ELEM( *pppsz_options, *pi_options, *pi_options,
psz_option );
}
else
{
msg_Warn( p_demux, "Option should be a string" );
}
lua_pop( p_state, 1 ); /* pop option */
}
}
lua_pop( p_state, 1 ); /* pop "options" */
}
static inline void read_meta_data( demux_t *p_demux,
lua_State *p_state, int o, int t,
input_item_t *p_input )
{
const char *psz_value;
#define TRY_META( a, b ) \
lua_getfield( p_state, o, a ); \
if( lua_isstring( p_state, t ) ) \
{ \
psz_value = lua_tostring( p_state, t ); \
msg_Dbg( p_demux, #b ": %s", psz_value ); \
input_item_Set ## b ( p_input, psz_value ); \
} \
lua_pop( p_state, 1 ); /* pop a */
TRY_META( "title", Title );
TRY_META( "artist", Artist );
TRY_META( "genre", Genre );
TRY_META( "copyright", Copyright );
TRY_META( "album", Album );
TRY_META( "tracknum", TrackNum );
TRY_META( "description", Description );
TRY_META( "rating", Rating );
TRY_META( "date", Date );
TRY_META( "setting", Setting );
TRY_META( "url", URL );
TRY_META( "language", Language );
TRY_META( "nowplaying", NowPlaying );
TRY_META( "publisher", Publisher );
TRY_META( "encodedby", EncodedBy );
TRY_META( "arturl", ArtURL );
TRY_META( "trackid", TrackID );
}
static inline void read_custom_meta_data( demux_t *p_demux,
lua_State *p_state, int o, int t,
input_item_t *p_input )
{
lua_getfield( p_state, o, "meta" );
if( lua_istable( p_state, t ) )
{
lua_pushnil( p_state );
while( lua_next( p_state, t ) )
{
if( !lua_isstring( p_state, t+1 ) )
{
msg_Warn( p_demux, "Custom meta data category name must be "
"a string" );
}
else if( !lua_istable( p_state, t+2 ) )
{
msg_Warn( p_demux, "Custom meta data category contents "
"must be a table" );
}
else
{
const char *psz_meta_category = lua_tostring( p_state, t+1 );
msg_Dbg( p_demux, "Found custom meta data category: %s",
psz_meta_category );
lua_pushnil( p_state );
while( lua_next( p_state, t+2 ) )
{
if( !lua_isstring( p_state, t+3 ) )
{
msg_Warn( p_demux, "Custom meta category item name "
"must be a string." );
}
else if( !lua_isstring( p_state, t+4 ) )
{
msg_Warn( p_demux, "Custom meta category item value "
"must be a string." );
}
else
{
const char *psz_meta_name =
lua_tostring( p_state, t+3 );
const char *psz_meta_value =
lua_tostring( p_state, t+4 );
msg_Dbg( p_demux, "Custom meta %s, %s: %s",
psz_meta_category, psz_meta_name,
psz_meta_value );
input_ItemAddInfo( p_input, psz_meta_category,
psz_meta_name, psz_meta_value );
}
lua_pop( p_state, 1 ); /* pop item */
}
}
lua_pop( p_state, 1 ); /* pop category */
}
}
lua_pop( p_state, 1 ); /* pop "meta" */
}
static int Demux( demux_t *p_demux )
{
input_item_t *p_input;
lua_State *p_state = p_demux->p_sys->p_state;
char *psz_filename = p_demux->p_sys->psz_filename;
int t;
INIT_PLAYLIST_STUFF;
luaL_register( p_state, "vlc", p_reg_parse );
lua_getglobal( p_state, "parse" );
if( !lua_isfunction( p_state, lua_gettop( p_state ) ) )
{
msg_Warn( p_demux, "Error while runing script %s, "
"function parse() not found", psz_filename );
E_(Close_LuaPlaylist)( VLC_OBJECT( p_demux ) );
return VLC_EGENERIC;
}
if( lua_pcall( p_state, 0, 1, 0 ) )
{
msg_Warn( p_demux, "Error while runing script %s, "
"function parse(): %s", psz_filename,
lua_tostring( p_state, lua_gettop( p_state ) ) );
E_(Close_LuaPlaylist)( VLC_OBJECT( p_demux ) );
return VLC_EGENERIC;
}
/* Check that the Lua stack is big enough and grow it if needed.
* Should be ok since LUA_MINSTACK is 20 but we never know. */
lua_checkstack( p_state, 8 );
if( ( t = lua_gettop( p_state ) ) )
{
if( lua_istable( p_state, t ) )
{
lua_pushnil( p_state );
while( lua_next( p_state, t ) )
{
if( lua_istable( p_state, t+2 ) )
{
lua_getfield( p_state, t+2, "path" );
if( lua_isstring( p_state, t+3 ) )
{
const char *psz_path = NULL;
const char *psz_name = NULL;
char **ppsz_options = NULL;
int i_options = 0;
mtime_t i_duration = -1;
/* Read path and name */
psz_path = lua_tostring( p_state, t+3 );
msg_Dbg( p_demux, "Path: %s", psz_path );
lua_getfield( p_state, t+2, "name" );
if( lua_isstring( p_state, t+4 ) )
{
psz_name = lua_tostring( p_state, t+4 );
msg_Dbg( p_demux, "Name: %s", psz_name );
}
else
{
psz_name = psz_path;
}
/* Read duration */
lua_getfield( p_state, t+2, "duration" );
if( lua_isnumber( p_state, t+5 ) )
{
i_duration = (mtime_t)lua_tointeger( p_state, t+5 );
i_duration *= 1000000;
}
lua_pop( p_state, 1 ); /* pop "duration" */
/* Read options */
read_options( p_demux, p_state, t+2, t+5,
&i_options, &ppsz_options );
/* Create input item */
p_input = input_ItemNewExt( p_playlist, psz_path,
psz_name, i_options,
(const char **)ppsz_options,
i_duration );
lua_pop( p_state, 1 ); /* pop "name" */
/* Read meta data */
read_meta_data( p_demux, p_state, t+2, t+4, p_input );
/* Read custom meta data */
read_custom_meta_data( p_demux, p_state, t+2, t+4,
p_input );
/* Append item to playlist */
input_ItemAddSubItem( p_current_input, p_input );
while( i_options > 0 )
free( ppsz_options[--i_options] );
free( ppsz_options );
}
else
{
msg_Warn( p_demux,
"Playlist item's path should be a string" );
}
lua_pop( p_state, 1 ); /* pop "path" */
}
else
{
msg_Warn( p_demux, "Playlist item should be a table" );
}
lua_pop( p_state, 1 ); /* pop the value, keep the key for
* the next lua_next() call */
}
}
else
{
msg_Warn( p_demux, "Script didn't return a table" );
}
}
else
{
msg_Err( p_demux, "Script went completely foobar" );
}
HANDLE_PLAY_AND_RELEASE;
return -1; /* Needed for correct operation of go back */
}
static int Control( demux_t *p_demux, int i_query, va_list args )
{
return VLC_EGENERIC;
}
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