69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
// Copyright (c) 2015 T. Okubo
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// This file is part of vlc-rs.
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// Licensed under the MIT license, see the LICENSE file.
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use crate::tools::from_cstr;
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use crate::InternalError;
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use crate::MediaPlayer;
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use crate::TrackDescription;
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use vlc_sys as sys;
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pub trait MediaPlayerAudioEx {
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fn get_mute(&self) -> Option<bool>;
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fn set_mute(&self, muted: bool);
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fn get_volume(&self) -> i32;
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fn set_volume(&self, volume: i32) -> Result<(), InternalError>;
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fn get_audio_track_description(&self) -> Option<Vec<TrackDescription>>;
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}
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impl MediaPlayerAudioEx for MediaPlayer {
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fn get_mute(&self) -> Option<bool> {
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let r = unsafe { sys::libvlc_audio_get_mute(self.ptr) };
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if r == 0 {
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Some(false)
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} else if r == -1 {
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None
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} else {
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Some(true)
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}
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}
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fn set_mute(&self, status: bool) {
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unsafe { sys::libvlc_audio_set_mute(self.ptr, if status { 1 } else { 0 }) };
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}
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fn get_volume(&self) -> i32 {
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unsafe { sys::libvlc_audio_get_volume(self.ptr) }
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}
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fn set_volume(&self, volume: i32) -> Result<(), InternalError> {
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unsafe {
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if sys::libvlc_audio_set_volume(self.ptr, volume) == 0 {
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Ok(())
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} else {
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Err(InternalError)
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}
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}
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}
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fn get_audio_track_description(&self) -> Option<Vec<TrackDescription>> {
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unsafe {
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let p0 = sys::libvlc_audio_get_track_description(self.ptr);
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if p0.is_null() {
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return None;
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}
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let mut td = Vec::new();
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let mut p = p0;
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while !(*p).p_next.is_null() {
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td.push(TrackDescription {
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id: (*p).i_id,
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name: from_cstr((*p).psz_name),
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});
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p = (*p).p_next;
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}
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sys::libvlc_track_description_list_release(p0);
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Some(td)
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}
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}
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}
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