audio_out: Mark several functions as const

These don't affect class state, so we can mark them as such.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/audio_core/out/audio_out.cpp b/src/audio_core/out/audio_out.cpp
index 9a8d8a742..d3ee4f0eb 100644
--- a/src/audio_core/out/audio_out.cpp
+++ b/src/audio_core/out/audio_out.cpp
@@ -72,7 +72,7 @@ Kernel::KReadableEvent& Out::GetBufferEvent() {
     return event->GetReadableEvent();
 }
 
-f32 Out::GetVolume() {
+f32 Out::GetVolume() const {
     std::scoped_lock l{parent_mutex};
     return system.GetVolume();
 }
@@ -82,17 +82,17 @@ void Out::SetVolume(const f32 volume) {
     system.SetVolume(volume);
 }
 
-bool Out::ContainsAudioBuffer(const u64 tag) {
+bool Out::ContainsAudioBuffer(const u64 tag) const {
     std::scoped_lock l{parent_mutex};
     return system.ContainsAudioBuffer(tag);
 }
 
-u32 Out::GetBufferCount() {
+u32 Out::GetBufferCount() const {
     std::scoped_lock l{parent_mutex};
     return system.GetBufferCount();
 }
 
-u64 Out::GetPlayedSampleCount() {
+u64 Out::GetPlayedSampleCount() const {
     std::scoped_lock l{parent_mutex};
     return system.GetPlayedSampleCount();
 }