/*****************************************************************************
- * media_descriptor.c: Libvlc API media descriport management
+ * media_descriptor.c: Libvlc API media descripor management
*****************************************************************************
* Copyright (C) 2007 the VideoLAN team
* $Id$
#include <vlc_input.h>
#include <vlc_meta.h>
+/* For the preparser */
+#include <vlc_playlist.h>
+
#include "libvlc_internal.h"
+static const vlc_meta_type_t libvlc_to_vlc_meta[] =
+{
+ [libvlc_meta_Title] = vlc_meta_Title,
+ [libvlc_meta_Artist] = vlc_meta_Artist,
+ [libvlc_meta_Genre] = vlc_meta_Genre,
+ [libvlc_meta_Copyright] = vlc_meta_Copyright,
+ [libvlc_meta_Album] = vlc_meta_Album,
+ [libvlc_meta_TrackNumber] = vlc_meta_TrackNumber,
+ [libvlc_meta_Description] = vlc_meta_Description,
+ [libvlc_meta_Rating] = vlc_meta_Rating,
+ [libvlc_meta_Date] = vlc_meta_Date,
+ [libvlc_meta_Setting] = vlc_meta_Setting,
+ [libvlc_meta_URL] = vlc_meta_URL,
+ [libvlc_meta_Language] = vlc_meta_Language,
+ [libvlc_meta_NowPlaying] = vlc_meta_NowPlaying,
+ [libvlc_meta_Publisher] = vlc_meta_Publisher,
+ [libvlc_meta_EncodedBy] = vlc_meta_EncodedBy,
+ [libvlc_meta_ArtworkURL] = vlc_meta_ArtworkURL,
+ [libvlc_meta_TrackID] = vlc_meta_TrackID
+};
+
+static const libvlc_meta_t vlc_to_libvlc_meta[] =
+{
+ [vlc_meta_Title] = libvlc_meta_Title,
+ [vlc_meta_Artist] = libvlc_meta_Artist,
+ [vlc_meta_Genre] = libvlc_meta_Genre,
+ [vlc_meta_Copyright] = libvlc_meta_Copyright,
+ [vlc_meta_Album] = libvlc_meta_Album,
+ [vlc_meta_TrackNumber] = libvlc_meta_TrackNumber,
+ [vlc_meta_Description] = libvlc_meta_Description,
+ [vlc_meta_Rating] = libvlc_meta_Rating,
+ [vlc_meta_Date] = libvlc_meta_Date,
+ [vlc_meta_Setting] = libvlc_meta_Setting,
+ [vlc_meta_URL] = libvlc_meta_URL,
+ [vlc_meta_Language] = libvlc_meta_Language,
+ [vlc_meta_NowPlaying] = libvlc_meta_NowPlaying,
+ [vlc_meta_Publisher] = libvlc_meta_Publisher,
+ [vlc_meta_EncodedBy] = libvlc_meta_EncodedBy,
+ [vlc_meta_ArtworkURL] = libvlc_meta_ArtworkURL,
+ [vlc_meta_TrackID] = libvlc_meta_TrackID
+};
+
+/**************************************************************************
+ * input_item_subitem_added (Private) (vlc event Callback)
+ **************************************************************************/
+static void input_item_subitem_added( const vlc_event_t *p_event,
+ void * user_data )
+{
+ libvlc_media_descriptor_t * p_md = user_data;
+ libvlc_media_descriptor_t * p_md_child;
+ libvlc_event_t event;
+
+ p_md_child = libvlc_media_descriptor_new_from_input_item(
+ p_md->p_libvlc_instance,
+ p_event->u.input_item_subitem_added.p_new_child, NULL );
+
+ /* Add this to our media list */
+ if( !p_md->p_subitems )
+ {
+ p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance, NULL );
+ libvlc_media_list_set_media_descriptor( p_md->p_subitems, p_md, NULL );
+ }
+ if( p_md->p_subitems )
+ {
+ libvlc_media_list_add_media_descriptor( p_md->p_subitems, p_md_child, NULL );
+ }
+
+ /* Construct the event */
+ event.type = libvlc_MediaDescriptorSubItemAdded;
+ event.u.media_descriptor_subitem_added.new_child = p_md_child;
+
+ /* Send the event */
+ libvlc_event_send( p_md->p_event_manager, &event );
+ libvlc_media_descriptor_release( p_md_child );
+}
+
+/**************************************************************************
+ * input_item_meta_changed (Private) (vlc event Callback)
+ **************************************************************************/
+static void input_item_meta_changed( const vlc_event_t *p_event,
+ void * user_data )
+{
+ libvlc_media_descriptor_t * p_md = user_data;
+ libvlc_event_t event;
+
+ /* Construct the event */
+ event.type = libvlc_MediaDescriptorMetaChanged;
+ event.u.media_descriptor_meta_changed.meta_type =
+ vlc_to_libvlc_meta[p_event->u.input_item_meta_changed.meta_type];
+
+ /* Send the event */
+ libvlc_event_send( p_md->p_event_manager, &event );
+}
+
+
+/**************************************************************************
+ * Install event handler (Private)
+ **************************************************************************/
+static void install_input_item_observer( libvlc_media_descriptor_t *p_md )
+{
+ vlc_event_attach( &p_md->p_input_item->event_manager,
+ vlc_InputItemSubItemAdded,
+ input_item_subitem_added,
+ p_md );
+ vlc_event_attach( &p_md->p_input_item->event_manager,
+ vlc_InputItemMetaChanged,
+ input_item_meta_changed,
+ p_md );
+}
+
+/**************************************************************************
+ * Uninstall event handler (Private)
+ **************************************************************************/
+static void uninstall_input_item_observer( libvlc_media_descriptor_t *p_md )
+{
+ vlc_event_detach( &p_md->p_input_item->event_manager,
+ vlc_InputItemSubItemAdded,
+ input_item_subitem_added,
+ p_md );
+ vlc_event_detach( &p_md->p_input_item->event_manager,
+ vlc_InputItemMetaChanged,
+ input_item_meta_changed,
+ p_md );
+}
/**************************************************************************
* Preparse if not already done (Private)
**************************************************************************/
-static void preparse_if_needed( libvlc_media_descriptor_t *p_media_desc )
+static void preparse_if_needed( libvlc_media_descriptor_t *p_md )
{
/* XXX: need some locking here */
- if (!p_media_desc->b_preparsed)
+ if (!p_md->b_preparsed)
{
- input_Preparse( p_media_desc->p_libvlc_instance->p_libvlc_int,
- p_media_desc->p_input_item );
- p_media_desc->b_preparsed = VLC_TRUE;
+ playlist_PreparseEnqueue(
+ p_md->p_libvlc_instance->p_libvlc_int->p_playlist,
+ p_md->p_input_item );
+ playlist_AskForArtEnqueue(
+ p_md->p_libvlc_instance->p_libvlc_int->p_playlist,
+ p_md->p_input_item );
+
+ p_md->b_preparsed = VLC_TRUE;
}
}
/**************************************************************************
- * Create a new media descriptor object
+ * Create a new media descriptor object from an input_item
+ * (libvlc internal)
+ * That's the generic constructor
**************************************************************************/
-libvlc_media_descriptor_t * libvlc_media_descriptor_new(
+libvlc_media_descriptor_t * libvlc_media_descriptor_new_from_input_item(
libvlc_instance_t *p_instance,
- const char * psz_mrl,
+ input_item_t *p_input_item,
libvlc_exception_t *p_e )
{
- input_item_t * p_input_item;
- libvlc_media_descriptor_t * p_media_desc;
-
- p_input_item = input_ItemNew( p_instance->p_libvlc_int, psz_mrl, psz_mrl );
+ libvlc_media_descriptor_t * p_md;
if (!p_input_item)
{
- libvlc_exception_raise( p_e, "Can't create md's input_item" );
+ libvlc_exception_raise( p_e, "No input item given" );
return NULL;
}
- p_media_desc = malloc( sizeof(libvlc_media_descriptor_t) );
- p_media_desc->p_libvlc_instance = p_instance;
- p_media_desc->p_input_item = p_input_item;
- p_media_desc->b_preparsed = VLC_FALSE;
+ p_md = malloc( sizeof(libvlc_media_descriptor_t) );
+ p_md->p_libvlc_instance = p_instance;
+ p_md->p_input_item = p_input_item;
+ p_md->b_preparsed = VLC_FALSE;
+ p_md->i_refcount = 1;
+
+ /* A media descriptor can be a playlist. When you open a playlist
+ * It can give a bunch of item to read. */
+ p_md->p_subitems = NULL;
+
+ vlc_dictionary_init( &p_md->tags, 1 );
- return p_media_desc;
+ p_md->p_event_manager = libvlc_event_manager_new( p_md, p_instance, p_e );
+ libvlc_event_manager_register_event_type( p_md->p_event_manager,
+ libvlc_MediaDescriptorMetaChanged, p_e );
+ libvlc_event_manager_register_event_type( p_md->p_event_manager,
+ libvlc_MediaDescriptorSubItemAdded, p_e );
+
+ vlc_gc_incref( p_md->p_input_item );
+
+ install_input_item_observer( p_md );
+
+ return p_md;
}
/**************************************************************************
- * Create a new media descriptor object from an input_item
- * (libvlc internal)
+ * Create a new media descriptor object
**************************************************************************/
-libvlc_media_descriptor_t * libvlc_media_descriptor_new_from_input_item(
+libvlc_media_descriptor_t * libvlc_media_descriptor_new(
libvlc_instance_t *p_instance,
- input_item_t *p_input_item,
+ const char * psz_mrl,
libvlc_exception_t *p_e )
{
- libvlc_media_descriptor_t * p_media_desc;
+ input_item_t * p_input_item;
+ libvlc_media_descriptor_t * p_md;
+
+ p_input_item = input_ItemNew( p_instance->p_libvlc_int, psz_mrl, NULL );
if (!p_input_item)
{
- libvlc_exception_raise( p_e, "No input item given" );
+ libvlc_exception_raise( p_e, "Can't create md's input_item" );
return NULL;
}
- p_media_desc = malloc( sizeof(libvlc_media_descriptor_t) );
- p_media_desc->p_libvlc_instance = p_instance;
- p_media_desc->p_input_item = p_input_item;
- p_media_desc->b_preparsed = VLC_TRUE;
+ p_md = libvlc_media_descriptor_new_from_input_item( p_instance,
+ p_input_item, p_e );
- return p_media_desc;
+ return p_md;
}
/**************************************************************************
* Delete a media descriptor object
**************************************************************************/
-void libvlc_media_descriptor_destroy( libvlc_media_descriptor_t *p_md )
+void libvlc_media_descriptor_release( libvlc_media_descriptor_t *p_md )
{
+ int i;
if (!p_md)
return;
- /* XXX: locking */
- input_ItemClean( p_md->p_input_item );
+ p_md->i_refcount--;
+
+ if( p_md->i_refcount > 0 )
+ return;
+
+ if( p_md->p_subitems )
+ libvlc_media_list_release( p_md->p_subitems );
+
+ uninstall_input_item_observer( p_md );
+ vlc_gc_decref( p_md->p_input_item );
+ char ** all_keys = vlc_dictionary_all_keys( &p_md->tags );
+ for( i = 0; all_keys[i]; i++ )
+ {
+ int j;
+ struct libvlc_tags_storage_t * p_ts = vlc_dictionary_value_for_key( &p_md->tags, all_keys[i] );
+ for( j = 0; j < p_ts->i_count; j++ )
+ {
+ free( p_ts->ppsz_tags[j] );
+ free( p_ts->ppsz_tags );
+ }
+ free( p_ts );
+ }
+ vlc_dictionary_clear( &p_md->tags );
free( p_md );
}
/**************************************************************************
- * Delete a media descriptor object
+ * Retain a media descriptor object
+ **************************************************************************/
+void libvlc_media_descriptor_retain( libvlc_media_descriptor_t *p_md )
+{
+ if (!p_md)
+ return;
+
+ p_md->i_refcount++;
+}
+
+/**************************************************************************
+ * Duplicate a media descriptor object
**************************************************************************/
libvlc_media_descriptor_t *
libvlc_media_descriptor_duplicate( libvlc_media_descriptor_t *p_md_orig )
{
- libvlc_media_descriptor_t * p_md;
-
- p_md = malloc( sizeof(libvlc_media_descriptor_t) );
- memcpy( p_md_orig, p_md, sizeof(libvlc_media_descriptor_t) );
+ return libvlc_media_descriptor_new_from_input_item(
+ p_md_orig->p_libvlc_instance, p_md_orig->p_input_item, NULL );
+}
- return p_md;
+/**************************************************************************
+ * Retain a media descriptor object
+ **************************************************************************/
+char *
+libvlc_media_descriptor_get_mrl( libvlc_media_descriptor_t * p_md,
+ libvlc_exception_t * p_e )
+{
+ (void)p_e;
+ return input_item_GetURI( p_md->p_input_item );
}
/**************************************************************************
* Getter for meta information
**************************************************************************/
-static const int meta_conversion[] =
-{
- [libvlc_meta_Title] = 0, /* Offset in the vlc_meta_t structure */
- [libvlc_meta_Artist] = 1
-};
-char * libvlc_media_descriptor_get_meta( libvlc_media_descriptor_t *p_meta_desc,
+char * libvlc_media_descriptor_get_meta( libvlc_media_descriptor_t *p_md,
libvlc_meta_t e_meta,
libvlc_exception_t *p_e )
{
- char ** ppsz_meta;
+ char * psz_meta;
/* XXX: locking */
- preparse_if_needed( p_meta_desc );
+ preparse_if_needed( p_md );
+
+ psz_meta = input_item_GetMeta( p_md->p_input_item,
+ libvlc_to_vlc_meta[e_meta] );
+
+ /* Should be integrated in core */
+ if( !psz_meta && e_meta == libvlc_meta_Title && p_md->p_input_item->psz_name )
+ {
+ free( psz_meta );
+ return strdup( p_md->p_input_item->psz_name );
+ }
+
+ return psz_meta;
+}
+
+/**************************************************************************
+ * Add a tag
+ **************************************************************************/
+void libvlc_media_descriptor_add_tag( libvlc_media_descriptor_t *p_md,
+ const char * key,
+ const libvlc_tag_t tag,
+ libvlc_exception_t *p_e )
+{
+ struct libvlc_tags_storage_t * p_ts;
+
+ if( !tag || !key )
+ return;
+
+ p_ts = vlc_dictionary_value_for_key( &p_md->tags, key );
+
+ if( !p_ts )
+ {
+ p_ts = malloc(sizeof(struct libvlc_tags_storage_t));
+ memset( p_ts, 0, sizeof(struct libvlc_tags_storage_t) );
+ }
+ p_ts->i_count++;
+
+ if( !p_ts->ppsz_tags )
+ p_ts->ppsz_tags = malloc(sizeof(char*)*(p_ts->i_count));
+ else
+ p_ts->ppsz_tags = realloc(p_ts->ppsz_tags, sizeof(char*)*(p_ts->i_count));
+
+ p_ts->ppsz_tags[p_ts->i_count-1] = strdup( tag );
+}
- ppsz_meta = (char**)p_meta_desc->p_input_item->p_meta;
- return strdup( ppsz_meta[ meta_conversion[e_meta] ] );
+/**************************************************************************
+ * Remove a tag
+ **************************************************************************/
+void libvlc_media_descriptor_remove_tag( libvlc_media_descriptor_t *p_md,
+ const char * key,
+ const libvlc_tag_t tag,
+ libvlc_exception_t *p_e )
+{
+ struct libvlc_tags_storage_t * p_ts;
+ int i;
+
+ if( !tag || !key )
+ return;
+
+ p_ts = vlc_dictionary_value_for_key( &p_md->tags, key );
+
+ if( !p_ts )
+ return;
+
+ for( i = 0; i < p_ts->i_count; i++ )
+ {
+ if( !strcmp( p_ts->ppsz_tags[i], tag ) )
+ {
+ free( p_ts->ppsz_tags[i] );
+ memcpy( p_ts->ppsz_tags + i + 1, p_ts->ppsz_tags + i, (p_ts->i_count - i - 2)*sizeof(char*) );
+ /* Don't dealloc, the memory will be regain if we add a new tag */
+ p_ts->i_count--;
+ return;
+ }
+ }
+}
+
+/**************************************************************************
+ * Get tags count
+ **************************************************************************/
+int libvlc_media_descriptor_tags_count_for_key( libvlc_media_descriptor_t *p_md,
+ const char * key,
+ libvlc_exception_t *p_e )
+{
+ struct libvlc_tags_storage_t * p_ts;
+
+ if( !key )
+ return 0;
+
+ p_ts = vlc_dictionary_value_for_key( &p_md->tags, key );
+
+ if( !p_ts )
+ return 0;
+ return p_ts->i_count;
+}
+
+/**************************************************************************
+ * Get a tag
+ **************************************************************************/
+libvlc_tag_t
+libvlc_media_descriptor_tag_at_index_for_key( libvlc_media_descriptor_t *p_md,
+ int i,
+ const char * key,
+ libvlc_exception_t *p_e )
+{
+ struct libvlc_tags_storage_t * p_ts;
+
+ if( !key )
+ return NULL;
+
+ p_ts = vlc_dictionary_value_for_key( &p_md->tags, key );
+
+ if( !p_ts )
+ return NULL;
+
+ return strdup( p_ts->ppsz_tags[i] );
+}
+
+/**************************************************************************
+ * subitems
+ **************************************************************************/
+libvlc_media_list_t *
+libvlc_media_descriptor_subitems( libvlc_media_descriptor_t * p_md,
+ libvlc_exception_t * p_e )
+{
+ if( p_md->p_subitems )
+ libvlc_media_list_retain( p_md->p_subitems );
+ return p_md->p_subitems;
+}
+
+/**************************************************************************
+ * event_manager
+ **************************************************************************/
+libvlc_event_manager_t *
+libvlc_media_descriptor_event_manager( libvlc_media_descriptor_t * p_md,
+ libvlc_exception_t * p_e )
+{
+ return p_md->p_event_manager;
}
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