include/vlc_input_item.h

   1 /*****************************************************************************
   2  * vlc_input_item.h: Core input item
   3  *****************************************************************************
   4  * Copyright (C) 1999-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Laurent Aimar <fenrir@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef VLC__INPUT_ITEM_H
  26 #define VLC__INPUT_ITEM_H 1
  27
  28 /**
  29  * \file
  30  * This file defines functions, structures and enums for input items in vlc
  31  */
  32
  33 #include <vlc_meta.h>
  34
  35 #include <string.h>
  36
  37 /*****************************************************************************
  38  * input_item_t: Describes an input and is used to spawn input_thread_t objects
  39  *****************************************************************************/
  40 struct info_t
  41 {
  42     char *psz_name;            /**< Name of this info */
  43     char *psz_value;           /**< Value of the info */
  44 };
  45
  46 struct info_category_t
  47 {
  48     char   *psz_name;      /**< Name of this category */
  49     int    i_infos;        /**< Number of infos in the category */
  50     struct info_t **pp_infos;     /**< Pointer to an array of infos */
  51 };
  52
  53 struct input_item_t
  54 {
  55     VLC_GC_MEMBERS
  56     int        i_id;                 /**< Identifier of the item */
  57
  58     char       *psz_name;            /**< text describing this item */
  59     char       *psz_uri;             /**< mrl of this item */
  60     bool       b_fixed_name;        /**< Can the interface change the name ?*/
  61
  62     int        i_options;            /**< Number of input options */
  63     char       **ppsz_options;       /**< Array of input options */
  64     uint8_t    *optflagv;            /**< Some flags of input options */
  65     unsigned   optflagc;
  66
  67     mtime_t    i_duration;           /**< Duration in milliseconds*/
  68
  69     uint8_t    i_type;               /**< Type (file, disc, ... see input_item_type_e) */
  70     bool b_prefers_tree;             /**< Do we prefer being displayed as tree*/
  71
  72     int        i_categories;         /**< Number of info categories */
  73     info_category_t **pp_categories; /**< Pointer to the first info category */
  74
  75     int         i_es;                /**< Number of es format descriptions */
  76     es_format_t **es;                /**< Es formats */
  77
  78     input_stats_t *p_stats;          /**< Statistics */
  79     int           i_nb_played;       /**< Number of times played */
  80
  81     bool          b_error_when_reading;       /**< Error When Reading */
  82
  83     vlc_meta_t *p_meta;
  84
  85     vlc_event_manager_t event_manager;
  86
  87     vlc_mutex_t lock;                 /**< Lock for the item */
  88 };
  89
  90 enum input_item_type_e
  91 {
  92     ITEM_TYPE_UNKNOWN,
  93     ITEM_TYPE_FILE,
  94     ITEM_TYPE_DIRECTORY,
  95     ITEM_TYPE_DISC,
  96     ITEM_TYPE_CDDA,
  97     ITEM_TYPE_CARD,
  98     ITEM_TYPE_NET,
  99     ITEM_TYPE_PLAYLIST,
 100     ITEM_TYPE_NODE,
 101
 102     /* This one is not a real type but the number of input_item types. */
 103     ITEM_TYPE_NUMBER
 104 };
 105
 106 VLC_EXPORT( void, input_item_CopyOptions, ( input_item_t *p_parent, input_item_t *p_child ) );
 107 VLC_EXPORT( void, input_item_SetName, ( input_item_t *p_item, const char *psz_name ) );
 108
 109 /* This won't hold the item, but can tell to interested third parties
 110  * Like the playlist, that there is a new sub item. With this design
 111  * It is not the input item's responsability to keep all the ref of
 112  * the input item children. */
 113 VLC_EXPORT( void, input_item_AddSubItem, ( input_item_t *p_parent, input_item_t *p_child ) );
 114
 115
 116 /**
 117  * Option flags
 118  */
 119 enum input_item_option_e
 120 {
 121     /* Allow VLC to trust the given option.
 122      * By default options are untrusted */
 123     VLC_INPUT_OPTION_TRUSTED = 0x2,
 124
 125     /* Change the value associated to an option if already present, otherwise
 126      * add the option */
 127     VLC_INPUT_OPTION_UNIQUE  = 0x100,
 128 };
 129
 130 /**
 131  * This function allows to add an option to an existing input_item_t.
 132  */
 133 VLC_EXPORT( int,  input_item_AddOption, (input_item_t *, const char *, unsigned i_flags ) );
 134
 135 /* */
 136 VLC_EXPORT( bool, input_item_HasErrorWhenReading, ( input_item_t * ) );
 137 VLC_EXPORT( void, input_item_SetMeta, ( input_item_t *, vlc_meta_type_t meta_type, const char *psz_val ));
 138 VLC_EXPORT( bool, input_item_MetaMatch, ( input_item_t *p_i, vlc_meta_type_t meta_type, const char *psz ) );
 139 VLC_EXPORT( char *, input_item_GetMeta, ( input_item_t *p_i, vlc_meta_type_t meta_type ) );
 140 VLC_EXPORT( char *, input_item_GetName, ( input_item_t * p_i ) );
 141 VLC_EXPORT( char *, input_item_GetURI, ( input_item_t * p_i ) );
 142 VLC_EXPORT( void,   input_item_SetURI, ( input_item_t * p_i, const char *psz_uri ));
 143 VLC_EXPORT(mtime_t, input_item_GetDuration, ( input_item_t * p_i ) );
 144 VLC_EXPORT( void,   input_item_SetDuration, ( input_item_t * p_i, mtime_t i_duration ));
 145 VLC_EXPORT( bool,   input_item_IsPreparsed, ( input_item_t *p_i ));
 146 VLC_EXPORT( bool,   input_item_IsArtFetched, ( input_item_t *p_i ));
 147
 148
 149 #define input_item_SetTitle( item, b )       input_item_SetMeta( item, vlc_meta_Title, b )
 150 #define input_item_SetArtist( item, b )      input_item_SetMeta( item, vlc_meta_Artist, b )
 151 #define input_item_SetGenre( item, b )       input_item_SetMeta( item, vlc_meta_Genre, b )
 152 #define input_item_SetCopyright( item, b )   input_item_SetMeta( item, vlc_meta_Copyright, b )
 153 #define input_item_SetAlbum( item, b )       input_item_SetMeta( item, vlc_meta_Album, b )
 154 #define input_item_SetTrackNum( item, b )    input_item_SetMeta( item, vlc_meta_TrackNumber, b )
 155 #define input_item_SetDescription( item, b ) input_item_SetMeta( item, vlc_meta_Description, b )
 156 #define input_item_SetRating( item, b )      input_item_SetMeta( item, vlc_meta_Rating, b )
 157 #define input_item_SetDate( item, b )        input_item_SetMeta( item, vlc_meta_Date, b )
 158 #define input_item_SetSetting( item, b )     input_item_SetMeta( item, vlc_meta_Setting, b )
 159 #define input_item_SetURL( item, b )         input_item_SetMeta( item, vlc_meta_URL, b )
 160 #define input_item_SetLanguage( item, b )    input_item_SetMeta( item, vlc_meta_Language, b )
 161 #define input_item_SetNowPlaying( item, b )  input_item_SetMeta( item, vlc_meta_NowPlaying, b )
 162 #define input_item_SetPublisher( item, b )   input_item_SetMeta( item, vlc_meta_Publisher, b )
 163 #define input_item_SetEncodedBy( item, b )   input_item_SetMeta( item, vlc_meta_EncodedBy, b )
 164 #define input_item_SetArtURL( item, b )      input_item_SetMeta( item, vlc_meta_ArtworkURL, b )
 165 #define input_item_SetTrackID( item, b )     input_item_SetMeta( item, vlc_meta_TrackID, b )
 166
 167 #define input_item_GetTitle( item )          input_item_GetMeta( item, vlc_meta_Title )
 168 #define input_item_GetArtist( item )         input_item_GetMeta( item, vlc_meta_Artist )
 169 #define input_item_GetGenre( item )          input_item_GetMeta( item, vlc_meta_Genre )
 170 #define input_item_GetCopyright( item )      input_item_GetMeta( item, vlc_meta_Copyright )
 171 #define input_item_GetAlbum( item )          input_item_GetMeta( item, vlc_meta_Album )
 172 #define input_item_GetTrackNum( item )       input_item_GetMeta( item, vlc_meta_TrackNumber )
 173 #define input_item_GetDescription( item )    input_item_GetMeta( item, vlc_meta_Description )
 174 #define input_item_GetRating( item )         input_item_GetMeta( item, vlc_meta_Rating )
 175 #define input_item_GetDate( item )           input_item_GetMeta( item, vlc_meta_Date )
 176 #define input_item_GetGetting( item )        input_item_GetMeta( item, vlc_meta_Getting )
 177 #define input_item_GetURL( item )            input_item_GetMeta( item, vlc_meta_URL )
 178 #define input_item_GetLanguage( item )       input_item_GetMeta( item, vlc_meta_Language )
 179 #define input_item_GetNowPlaying( item )     input_item_GetMeta( item, vlc_meta_NowPlaying )
 180 #define input_item_GetPublisher( item )      input_item_GetMeta( item, vlc_meta_Publisher )
 181 #define input_item_GetEncodedBy( item )      input_item_GetMeta( item, vlc_meta_EncodedBy )
 182 #define input_item_GetArtURL( item )         input_item_GetMeta( item, vlc_meta_ArtworkURL )
 183 #define input_item_GetTrackID( item )        input_item_GetMeta( item, vlc_meta_TrackID )
 184 #define input_item_GetSetting( item )        input_item_GetMeta( item, vlc_meta_Setting )
 185
 186 VLC_EXPORT( char *, input_item_GetInfo, ( input_item_t *p_i, const char *psz_cat,const char *psz_name ) );
 187 VLC_EXPORT( int, input_item_AddInfo, ( input_item_t *p_i, const char *psz_cat, const char *psz_name, const char *psz_format, ... ) LIBVLC_FORMAT( 4, 5 ) );
 188 VLC_EXPORT( int, input_item_DelInfo, ( input_item_t *p_i, const char *psz_cat, const char *psz_name ) );
 189
 190 /**
 191  * This function creates a new input_item_t with the provided informations.
 192  *
 193  * XXX You may also use input_item_New or input_item_NewExt as they need
 194  * less arguments.
 195  */
 196 VLC_EXPORT( input_item_t *, input_item_NewWithType, ( vlc_object_t *, const char *psz_uri, const char *psz_name, int i_options, const char *const *ppsz_options, unsigned i_option_flags, mtime_t i_duration, int i_type ) );
 197
 198 /**
 199  * This function creates a new input_item_t with the provided informations.
 200  *
 201  * Provided for convenience.
 202  */
 203 #define input_item_NewExt(a,b,c,d,e,f,g) __input_item_NewExt( VLC_OBJECT(a),b,c,d,e,f,g)
 204 VLC_EXPORT( input_item_t *, __input_item_NewExt, (vlc_object_t *, const char *psz_uri, const char *psz_name, int i_options, const char *const *ppsz_options, unsigned i_option_flags, mtime_t i_duration ) );
 205
 206 /**
 207  * This function creates a new input_item_t with the provided informations.
 208  *
 209  * Provided for convenience.
 210  */
 211 #define input_item_New( a,b,c ) input_item_NewExt( a, b, c, 0, NULL, 0, -1 )
 212
 213 /******************
 214  * Input stats
 215  ******************/
 216 struct input_stats_t
 217 {
 218     vlc_mutex_t         lock;
 219
 220     /* Input */
 221     int i_read_packets;
 222     int i_read_bytes;
 223     float f_input_bitrate;
 224     float f_average_input_bitrate;
 225
 226     /* Demux */
 227     int i_demux_read_packets;
 228     int i_demux_read_bytes;
 229     float f_demux_bitrate;
 230     float f_average_demux_bitrate;
 231     int i_demux_corrupted;
 232     int i_demux_discontinuity;
 233
 234     /* Decoders */
 235     int i_decoded_audio;
 236     int i_decoded_video;
 237
 238     /* Vout */
 239     int i_displayed_pictures;
 240     int i_lost_pictures;
 241
 242     /* Sout */
 243     int i_sent_packets;
 244     int i_sent_bytes;
 245     float f_send_bitrate;
 246
 247     /* Aout */
 248     int i_played_abuffers;
 249     int i_lost_abuffers;
 250 };
 251
 252 #endif