mirror of
https://code.videolan.org/videolan/vlc
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439 lines
14 KiB
C
439 lines
14 KiB
C
/*****************************************************************************
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* vlc_input_item.h: Core input item
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*****************************************************************************
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* Copyright (C) 1999-2009 VLC authors and VideoLAN
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* $Id$
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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* Laurent Aimar <fenrir@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_INPUT_ITEM_H
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#define VLC_INPUT_ITEM_H 1
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/**
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* \file
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* This file defines functions, structures and enums for input items in vlc
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*/
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#include <vlc_meta.h>
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#include <vlc_epg.h>
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#include <vlc_events.h>
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#include <string.h>
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typedef struct input_item_opaque input_item_opaque_t;
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typedef struct input_item_slave input_item_slave_t;
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struct info_t
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{
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char *psz_name; /**< Name of this info */
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char *psz_value; /**< Value of the info */
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};
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struct info_category_t
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{
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char *psz_name; /**< Name of this category */
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int i_infos; /**< Number of infos in the category */
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struct info_t **pp_infos; /**< Pointer to an array of infos */
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};
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/**
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* Describes an input and is used to spawn input_thread_t objects.
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*/
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struct input_item_t
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{
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char *psz_name; /**< text describing this item */
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char *psz_uri; /**< mrl of this item */
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int i_options; /**< Number of input options */
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char **ppsz_options; /**< Array of input options */
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uint8_t *optflagv; /**< Some flags of input options */
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unsigned optflagc;
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input_item_opaque_t *opaques; /**< List of opaque pointer values */
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mtime_t i_duration; /**< Duration in microseconds */
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int i_categories; /**< Number of info categories */
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info_category_t **pp_categories; /**< Pointer to the first info category */
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int i_es; /**< Number of es format descriptions */
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es_format_t **es; /**< Es formats */
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input_stats_t *p_stats; /**< Statistics */
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vlc_meta_t *p_meta;
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int i_epg; /**< Number of EPG entries */
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vlc_epg_t **pp_epg; /**< EPG entries */
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const vlc_epg_t *p_epg_table; /** running/selected program cur/next EPG table */
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int i_slaves; /**< Number of slaves */
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input_item_slave_t **pp_slaves; /**< Slave entries that will be loaded by
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the input_thread */
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vlc_event_manager_t event_manager;
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vlc_mutex_t lock; /**< Lock for the item */
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uint8_t i_type; /**< Type (file, disc, ... see input_item_type_e) */
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bool b_net; /**< Net: always true for TYPE_STREAM, it
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depends for others types */
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bool b_error_when_reading;/**< Error When Reading */
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int i_preparse_depth; /**< How many level of sub items can be preparsed:
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-1: recursive, 0: none, >0: n levels */
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bool b_preparse_interact; /**< Force interaction with the user when
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preparsing.*/
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};
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TYPEDEF_ARRAY(input_item_t*, input_item_array_t)
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enum input_item_type_e
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{
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ITEM_TYPE_UNKNOWN,
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ITEM_TYPE_FILE,
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ITEM_TYPE_DIRECTORY,
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ITEM_TYPE_DISC,
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ITEM_TYPE_CARD,
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ITEM_TYPE_STREAM,
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ITEM_TYPE_PLAYLIST,
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ITEM_TYPE_NODE,
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/* This one is not a real type but the number of input_item types. */
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ITEM_TYPE_NUMBER
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};
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enum input_item_net_type
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{
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ITEM_NET_UNKNOWN,
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ITEM_NET,
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ITEM_LOCAL
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};
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enum slave_type
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{
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SLAVE_TYPE_SPU,
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SLAVE_TYPE_AUDIO,
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};
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enum slave_priority
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{
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SLAVE_PRIORITY_MATCH_NONE = 1,
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SLAVE_PRIORITY_MATCH_RIGHT,
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SLAVE_PRIORITY_MATCH_LEFT,
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SLAVE_PRIORITY_MATCH_ALL,
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SLAVE_PRIORITY_USER
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};
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#define SLAVE_SPU_EXTENSIONS \
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"idx", "sub", "srt", \
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"ssa", "ass", "smi", \
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"utf", "utf8", "utf-8", \
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"rt", "aqt", "txt", \
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"usf", "jss", "cdg", \
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"psb", "mpsub","mpl2", \
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"pjs", "dks", "stl", \
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"vtt", "sbv"
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#define SLAVE_AUDIO_EXTENSIONS \
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"ac3", "m4a", "aac", \
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"eac3", "dtshd", "flac", \
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"pcm", "dts"
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struct input_item_slave
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{
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enum slave_type i_type; /**< Slave type (spu, audio) */
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enum slave_priority i_priority; /**< Slave priority */
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bool b_forced; /**< Slave should be selected */
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char psz_uri[]; /**< Slave mrl */
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};
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struct input_item_node_t
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{
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input_item_t * p_item;
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int i_children;
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input_item_node_t **pp_children;
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input_item_node_t *p_parent;
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};
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VLC_API void input_item_CopyOptions( input_item_t *p_child, input_item_t *p_parent );
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VLC_API void input_item_SetName( input_item_t *p_item, const char *psz_name );
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/**
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* Add one subitem to this item
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*
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* This won't hold the item, but can tell to interested third parties
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* Like the playlist, that there is a new sub item. With this design
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* It is not the input item's responsibility to keep all the ref of
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* the input item children.
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*
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* Sends a vlc_InputItemSubItemTreeAdded and a vlc_InputItemSubItemAdded event
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*/
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VLC_API void input_item_PostSubItem( input_item_t *p_parent, input_item_t *p_child );
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/**
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* Start adding multiple subitems.
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*
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* Create a root node to hold a tree of subitems for given item
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*/
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VLC_API input_item_node_t * input_item_node_Create( input_item_t *p_input ) VLC_USED;
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/**
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* Add a new child node to this parent node that will point to this subitem.
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*/
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VLC_API input_item_node_t * input_item_node_AppendItem( input_item_node_t *p_node, input_item_t *p_item );
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/**
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* Add an already created node to children of this parent node.
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*/
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VLC_API void input_item_node_AppendNode( input_item_node_t *p_parent, input_item_node_t *p_child );
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/**
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* Delete a node created with input_item_node_Create() and all its children.
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*/
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VLC_API void input_item_node_Delete( input_item_node_t *p_node );
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/**
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* End adding multiple subitems.
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*
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* Sends a vlc_InputItemSubItemTreeAdded event to notify that the item pointed to
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* by the given root node has created new subitems that are pointed to by all the
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* children of the node.
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*
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* Also sends vlc_InputItemSubItemAdded event for every child under the given root node;
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*
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* In the end deletes the node and all its children nodes.
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*/
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VLC_API void input_item_node_PostAndDelete( input_item_node_t *p_node );
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/**
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* Option flags
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*/
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enum input_item_option_e
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{
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/* Allow VLC to trust the given option.
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* By default options are untrusted */
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VLC_INPUT_OPTION_TRUSTED = 0x2,
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/* Add the option, unless the same option
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* is already present. */
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VLC_INPUT_OPTION_UNIQUE = 0x100,
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};
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/**
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* This function allows to add an option to an existing input_item_t.
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*/
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VLC_API int input_item_AddOption(input_item_t *, const char *, unsigned i_flags );
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/**
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* This function add several options to an existing input_item_t.
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*/
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VLC_API int input_item_AddOptions(input_item_t *, int i_options,
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const char *const *ppsz_options,
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unsigned i_flags );
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VLC_API int input_item_AddOpaque(input_item_t *, const char *, void *);
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void input_item_ApplyOptions(vlc_object_t *, input_item_t *);
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VLC_API bool input_item_slave_GetType(const char *, enum slave_type *);
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VLC_API input_item_slave_t *input_item_slave_New(const char *, enum slave_type,
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enum slave_priority);
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#define input_item_slave_Delete(p_slave) free(p_slave)
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/**
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* This function allows adding a slave to an existing input item.
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* The slave is owned by the input item after this call.
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*/
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VLC_API int input_item_AddSlave(input_item_t *, input_item_slave_t *);
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/* */
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VLC_API bool input_item_HasErrorWhenReading( input_item_t * );
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VLC_API void input_item_SetMeta( input_item_t *, vlc_meta_type_t meta_type, const char *psz_val );
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VLC_API bool input_item_MetaMatch( input_item_t *p_i, vlc_meta_type_t meta_type, const char *psz );
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VLC_API char * input_item_GetMeta( input_item_t *p_i, vlc_meta_type_t meta_type ) VLC_USED;
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VLC_API char * input_item_GetName( input_item_t * p_i ) VLC_USED;
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VLC_API char * input_item_GetTitleFbName( input_item_t * p_i ) VLC_USED;
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VLC_API char * input_item_GetURI( input_item_t * p_i ) VLC_USED;
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VLC_API char * input_item_GetNowPlayingFb( input_item_t *p_item ) VLC_USED;
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VLC_API void input_item_SetURI( input_item_t * p_i, const char *psz_uri );
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VLC_API mtime_t input_item_GetDuration( input_item_t * p_i );
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VLC_API void input_item_SetDuration( input_item_t * p_i, mtime_t i_duration );
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VLC_API bool input_item_IsPreparsed( input_item_t *p_i );
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VLC_API bool input_item_IsArtFetched( input_item_t *p_i );
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#define INPUT_META( name ) \
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static inline \
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void input_item_Set ## name (input_item_t *p_input, const char *val) \
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{ \
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input_item_SetMeta (p_input, vlc_meta_ ## name, val); \
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} \
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static inline \
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char *input_item_Get ## name (input_item_t *p_input) \
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{ \
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return input_item_GetMeta (p_input, vlc_meta_ ## name); \
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}
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INPUT_META(Title)
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INPUT_META(Artist)
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INPUT_META(AlbumArtist)
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INPUT_META(Genre)
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INPUT_META(Copyright)
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INPUT_META(Album)
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INPUT_META(TrackNumber)
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INPUT_META(Description)
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INPUT_META(Rating)
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INPUT_META(Date)
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INPUT_META(Setting)
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INPUT_META(URL)
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INPUT_META(Language)
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INPUT_META(NowPlaying)
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INPUT_META(ESNowPlaying)
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INPUT_META(Publisher)
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INPUT_META(EncodedBy)
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INPUT_META(ArtworkURL)
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INPUT_META(TrackID)
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INPUT_META(TrackTotal)
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INPUT_META(Director)
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INPUT_META(Season)
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INPUT_META(Episode)
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INPUT_META(ShowName)
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INPUT_META(Actors)
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INPUT_META(DiscNumber)
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#define input_item_SetTrackNum input_item_SetTrackNumber
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#define input_item_GetTrackNum input_item_GetTrackNumber
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#define input_item_SetArtURL input_item_SetArtworkURL
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#define input_item_GetArtURL input_item_GetArtworkURL
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VLC_API char * input_item_GetInfo( input_item_t *p_i, const char *psz_cat,const char *psz_name ) VLC_USED;
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VLC_API int input_item_AddInfo( input_item_t *p_i, const char *psz_cat, const char *psz_name, const char *psz_format, ... ) VLC_FORMAT( 4, 5 );
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VLC_API int input_item_DelInfo( input_item_t *p_i, const char *psz_cat, const char *psz_name );
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VLC_API void input_item_ReplaceInfos( input_item_t *, info_category_t * );
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VLC_API void input_item_MergeInfos( input_item_t *, info_category_t * );
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/**
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* This function creates a new input_item_t with the provided information.
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*
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* XXX You may also use input_item_New, as they need less arguments.
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*/
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VLC_API input_item_t * input_item_NewExt( const char *psz_uri,
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const char *psz_name,
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mtime_t i_duration, int i_type,
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enum input_item_net_type i_net ) VLC_USED;
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#define input_item_New( psz_uri, psz_name ) \
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input_item_NewExt( psz_uri, psz_name, -1, ITEM_TYPE_UNKNOWN, ITEM_NET_UNKNOWN )
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#define input_item_NewCard( psz_uri, psz_name ) \
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input_item_NewExt( psz_uri, psz_name, -1, ITEM_TYPE_CARD, ITEM_LOCAL )
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#define input_item_NewDisc( psz_uri, psz_name, i_duration ) \
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input_item_NewExt( psz_uri, psz_name, i_duration, ITEM_TYPE_DISC, ITEM_LOCAL )
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#define input_item_NewStream( psz_uri, psz_name, i_duration ) \
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input_item_NewExt( psz_uri, psz_name, i_duration, ITEM_TYPE_STREAM, ITEM_NET )
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#define input_item_NewDirectory( psz_uri, psz_name, i_net ) \
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input_item_NewExt( psz_uri, psz_name, -1, ITEM_TYPE_DIRECTORY, i_net )
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#define input_item_NewFile( psz_uri, psz_name, i_duration, i_net ) \
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input_item_NewExt( psz_uri, psz_name, i_duration, ITEM_TYPE_FILE, i_net )
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/**
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* This function creates a new input_item_t as a copy of another.
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*/
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VLC_API input_item_t * input_item_Copy(input_item_t * ) VLC_USED;
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/** Holds an input item, i.e. creates a new reference. */
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VLC_API input_item_t *input_item_Hold(input_item_t *);
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/** Releases an input item, i.e. decrements its reference counter. */
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VLC_API void input_item_Release(input_item_t *);
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/* Historical hack... */
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#define vlc_gc_incref(i) input_item_Hold(i)
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#define vlc_gc_decref(i) input_item_Release(i)
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typedef enum input_item_meta_request_option_t
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{
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META_REQUEST_OPTION_NONE = 0x00,
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META_REQUEST_OPTION_SCOPE_LOCAL = 0x01,
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META_REQUEST_OPTION_SCOPE_NETWORK = 0x02,
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META_REQUEST_OPTION_SCOPE_ANY = 0x03,
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META_REQUEST_OPTION_DO_INTERACT = 0x04
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} input_item_meta_request_option_t;
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/* status of the vlc_InputItemPreparseEnded event */
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enum input_item_preparse_status
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{
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ITEM_PREPARSE_SKIPPED,
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ITEM_PREPARSE_FAILED,
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ITEM_PREPARSE_TIMEOUT,
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ITEM_PREPARSE_DONE
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};
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VLC_API int libvlc_MetadataRequest( libvlc_int_t *, input_item_t *,
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input_item_meta_request_option_t,
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int, void * );
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VLC_API int libvlc_ArtRequest(libvlc_int_t *, input_item_t *,
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input_item_meta_request_option_t );
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VLC_API void libvlc_MetadataCancel( libvlc_int_t *, void * );
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/******************
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* Input stats
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******************/
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struct input_stats_t
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{
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vlc_mutex_t lock;
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/* Input */
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int64_t i_read_packets;
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int64_t i_read_bytes;
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float f_input_bitrate;
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float f_average_input_bitrate;
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/* Demux */
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int64_t i_demux_read_packets;
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int64_t i_demux_read_bytes;
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float f_demux_bitrate;
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float f_average_demux_bitrate;
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int64_t i_demux_corrupted;
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int64_t i_demux_discontinuity;
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/* Decoders */
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int64_t i_decoded_audio;
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int64_t i_decoded_video;
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/* Vout */
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int64_t i_displayed_pictures;
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int64_t i_lost_pictures;
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/* Sout */
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int64_t i_sent_packets;
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int64_t i_sent_bytes;
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float f_send_bitrate;
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/* Aout */
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int64_t i_played_abuffers;
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int64_t i_lost_abuffers;
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};
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#endif
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