[vlc-commits] [Git][videolan/vlc][master] libvlc_media: expose duration if it is known regardless of parsing state

[Felix Paul Kühne (@fkuehne)]

Felix Paul Kühne pushed to branch master at VideoLAN / VLC


Commits:
3d053547 by Felix Paul Kühne at 2026-08-30T09:54:42+02:00
libvlc_media: expose duration if it is known regardless of parsing state

Certain playlist parsers such as podcast know the duration of a media
even if the media itself was not parsed or played yet.

- - - - -


2 changed files:

- include/vlc/libvlc_media.h
- lib/media.c


Changes:

=====================================
include/vlc/libvlc_media.h
=====================================
@@ -527,12 +527,12 @@ libvlc_media_subitems( libvlc_media_t *p_md );
 /**
  * Get duration (in us) of media descriptor object item.
  *
- * Note, you need to parse using libvlc_parser_queue() or play the media
- * at least once before calling this function.
- * Not doing this will result in an undefined result.
+ * The duration is known if the media was parsed using libvlc_parser_queue(),
+ * played at least once, or created by a source that already advertises it,
+ * such as a playlist carrying duration metadata.
  *
  * \param p_md media descriptor object
- * \return duration of media item or -1 on error
+ * \return duration of media item or -1 if it is unknown
  */
 LIBVLC_API libvlc_time_t
    libvlc_media_get_duration( libvlc_media_t *p_md );


=====================================
lib/media.c
=====================================
@@ -545,10 +545,12 @@ libvlc_media_get_duration( libvlc_media_t * p_md )
         return -1;
     }
 
-    if (!input_item_IsPreparsed( p_md->p_input_item ))
+    vlc_tick_t i_duration = input_item_GetDuration( p_md->p_input_item );
+
+    if( i_duration == 0 && !input_item_IsPreparsed( p_md->p_input_item ) )
         return -1;
 
-    return libvlc_time_from_vlc_tick(input_item_GetDuration( p_md->p_input_item ));
+    return libvlc_time_from_vlc_tick( i_duration );
 }
 
 int



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/3d0535473f940b38cb2b425ecfb396b1624bbb6d

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/3d0535473f940b38cb2b425ecfb396b1624bbb6d
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