videolan/vlc
1
Fork 0
mirror of https://code.videolan.org/videolan/vlc synced 2024-08-27 04:21:53 +02:00
Code Releases Activity

src/control/media_descriptor.c: Forward vlc_InputItemMetaChanged events.

Browse Source
This commit is contained in:
Pierre d'Herbemont 2007-08-15 18:27:49 +00:00
parent e1aeed2ef8
commit d49a678a66
3 changed files with 131 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/vlc/libvlc_structures.h
View File

@ -91,7 +91,7 @@ typedef enum libvlc_meta_t {
libvlc_meta_Description,
libvlc_meta_Rating,
libvlc_meta_Date,
libvlc_meta_Settings,
libvlc_meta_Setting,
libvlc_meta_URL,
libvlc_meta_Language,
libvlc_meta_NowPlaying,
@ -241,6 +241,7 @@ typedef struct libvlc_log_message_t
*/
typedef enum libvlc_event_type_t {
libvlc_MediaDescriptorMetaChanged,
libvlc_MediaInstanceReachedEnd,
libvlc_MediaListItemAdded,
libvlc_MediaListItemDeleted,
@ -260,6 +261,10 @@ typedef struct libvlc_event_t
void * p_obj;
union event_type_specific
{
struct
{
libvlc_meta_t meta_type;
} media_descriptor_meta_changed;
struct
{
libvlc_media_descriptor_t * item;

1
src/control/libvlc_internal.h
View File

@ -65,6 +65,7 @@ struct libvlc_instance_t
struct libvlc_media_descriptor_t
{
libvlc_event_manager_t * p_event_manager;
int b_preparsed;
input_item_t *p_input_item;
int i_refcount;

188
src/control/media_descriptor.c
View File

@ -27,6 +27,88 @@
#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_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_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_InputItemMetaChanged,
input_item_meta_changed,
p_md );
}
/**************************************************************************
* Preparse if not already done (Private)
@ -42,6 +124,39 @@ static void preparse_if_needed( libvlc_media_descriptor_t *p_md )
}
}
/**************************************************************************
* 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_from_input_item(
libvlc_instance_t *p_instance,
input_item_t *p_input_item,
libvlc_exception_t *p_e )
{
libvlc_media_descriptor_t * p_md;
if (!p_input_item)
{
libvlc_exception_raise( p_e, "No input item given" );
return NULL;
}
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_TRUE;
p_md->i_refcount = 1;
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 );
vlc_gc_incref( p_md->p_input_item );
install_input_item_observer( p_md );
return p_md;
}
/**************************************************************************
* Create a new media descriptor object
**************************************************************************/
@ -61,41 +176,8 @@ libvlc_media_descriptor_t * libvlc_media_descriptor_new(
return NULL;
}
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;
vlc_gc_incref( p_md->p_input_item );
return p_md;
}
/**************************************************************************
* Create a new media descriptor object from an input_item
* (libvlc internal)
**************************************************************************/
libvlc_media_descriptor_t * libvlc_media_descriptor_new_from_input_item(
libvlc_instance_t *p_instance,
input_item_t *p_input_item,
libvlc_exception_t *p_e )
{
libvlc_media_descriptor_t * p_md;
if (!p_input_item)
{
libvlc_exception_raise( p_e, "No input item given" );
return NULL;
}
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_TRUE;
p_md->i_refcount = 1;
vlc_gc_incref( p_md->p_input_item );
p_md = libvlc_media_descriptor_new_from_input_item( p_instance,
p_input_item, p_e );
return p_md;
}
@ -110,12 +192,12 @@ void libvlc_media_descriptor_release( libvlc_media_descriptor_t *p_md )
p_md->i_refcount--;
/* XXX: locking */
vlc_gc_decref( p_md->p_input_item );
if( p_md->i_refcount > 0 )
return;
uninstall_input_item_observer( p_md );
vlc_gc_decref( p_md->p_input_item );
free( p_md );
}
@ -128,9 +210,6 @@ void libvlc_media_descriptor_retain( libvlc_media_descriptor_t *p_md )
return;
p_md->i_refcount++;
/* XXX: locking */
vlc_gc_incref( p_md->p_input_item );
}
/**************************************************************************
@ -140,7 +219,7 @@ libvlc_media_descriptor_t *
libvlc_media_descriptor_duplicate( libvlc_media_descriptor_t *p_md_orig )
{
return libvlc_media_descriptor_new_from_input_item(
p_md->p_libvlc_instance, p_md_orig->p_input_item );
p_md_orig->p_libvlc_instance, p_md_orig->p_input_item, NULL );
}
/**************************************************************************
@ -157,26 +236,6 @@ libvlc_media_descriptor_get_mrl( libvlc_media_descriptor_t * p_md,
/**************************************************************************
* Getter for meta information
**************************************************************************/
static const vlc_meta_type_t meta_conversion[] =
{
[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_Settings] = 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
};
char * libvlc_media_descriptor_get_meta( libvlc_media_descriptor_t *p_md,
libvlc_meta_t e_meta,
@ -188,7 +247,8 @@ char * libvlc_media_descriptor_get_meta( libvlc_media_descriptor_t *p_md,
preparse_if_needed( p_md );
psz_meta = input_item_GetMeta( p_md->p_input_item, meta_conversion[e_meta] );
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 )