vlc-rs/src/media_list.rs

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// Copyright (c) 2015 T. Okubo
// This file is part of vlc-rs.
// Licensed under the MIT license, see the LICENSE file.
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use sys;
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use ::{Instance, Media, EventManager};
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pub struct MediaList {
pub(crate) ptr: *mut sys::libvlc_media_list_t,
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}
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impl MediaList {
/// Create an empty media list.
pub fn new(instance: &Instance) -> Option<MediaList> {
unsafe{
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let p = sys::libvlc_media_list_new(instance.ptr);
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if p.is_null() { None }else{ Some(MediaList{ptr: p}) }
}
}
/// Associate media instance with this media list instance.
/// If another media instance was present it will be released. The libvlc_media_list_lock should NOT be held upon entering this function.
pub fn set_media(&self, md: &Media) {
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unsafe{ sys::libvlc_media_list_set_media(self.ptr, md.ptr); }
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}
/// Get media instance from this media list instance.
/// The MediaList::lock should NOT be held upon entering this function.
pub fn media(&self) -> Option<Media> {
unsafe{
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let p = sys::libvlc_media_list_media(self.ptr);
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if p.is_null() { None }else{ Some(Media{ptr: p}) }
}
}
/// Add media instance to media list.
/// The MediaList::lock should be held upon entering this function.
pub fn add_media(&self, md: &Media) -> Result<(), ()> {
unsafe{
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if sys::libvlc_media_list_add_media(self.ptr, md.ptr) == 0 { Ok(()) }else{ Err(()) }
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}
}
/// Insert media instance in media list on a position.
/// The MediaList::lock should be held upon entering this function.
pub fn insert_media(&self, md: &Media, pos: i32) -> Result<(), ()> {
unsafe{
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if sys::libvlc_media_list_insert_media(self.ptr, md.ptr, pos) == 0 { Ok(()) }else{ Err(()) }
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}
}
/// Remove media instance from media list on a position.
/// The MediaList::lock should be held upon entering this function.
pub fn remove_index(&self, pos: i32) -> Result<(), ()> {
unsafe{
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if sys::libvlc_media_list_remove_index(self.ptr, pos) == 0 { Ok(()) }else{ Err(()) }
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}
}
/// Get count on media list items.
/// The MediaList::lock should be held upon entering this function.
pub fn count(&self) -> i32 {
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unsafe{ sys::libvlc_media_list_count(self.ptr) }
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}
/// List media instance in media list at a position.
/// The MediaList::lock should be held upon entering this function.
pub fn item_at_index(&self, pos: i32) -> Option<Media> {
unsafe{
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let p = sys::libvlc_media_list_item_at_index(self.ptr, pos);
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if p.is_null() { None }else{ Some(Media{ptr: p}) }
}
}
/// Find index position of List media instance in media list.
pub fn index_of_item(&self, md: &Media) -> Option<i32> {
unsafe{
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let i = sys::libvlc_media_list_index_of_item(self.ptr, md.ptr);
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if i == -1 { None }else{ Some(i) }
}
}
/// This indicates if this media list is read-only from a user point of view.
pub fn is_readonly(&self) -> bool {
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unsafe{ if sys::libvlc_media_list_is_readonly(self.ptr) == 0 { false }else{ true } }
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}
/// Get lock on media list items
pub fn lock(&self) {
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unsafe{ sys::libvlc_media_list_lock(self.ptr); }
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}
/// Release lock on media list items
/// The libvlc_media_list_lock should be held upon entering this function.
pub fn unlock(&self) {
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unsafe{ sys::libvlc_media_list_unlock(self.ptr); }
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}
/// Get EventManager from this media list instance.
pub fn event_manager<'a>(&'a self) -> EventManager<'a> {
unsafe{
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let p = sys::libvlc_media_list_event_manager(self.ptr);
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assert!(!p.is_null());
EventManager{ptr: p, _phantomdata: ::std::marker::PhantomData}
}
}
/// Returns raw pointer
pub fn raw(&self) -> *mut sys::libvlc_media_list_t {
self.ptr
}
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}
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impl Drop for MediaList {
fn drop(&mut self) {
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unsafe{ sys::libvlc_media_list_release(self.ptr) };
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}
}