[clang-tidy] use override instead of virtual

Found with modernize-use-override

Signed-off-by: Rosen Penev <rosenp@gmail.com>

src/input/plugins/AlsaInputPlugin.cxx

@@ -89,7 +89,7 @@ public:
 			Mutex &_mutex,
 			const SourceSpec &spec);
 
-	~AlsaInputStream() {
+	~AlsaInputStream() override {
 		BlockingCall(MultiSocketMonitor::GetEventLoop(), [this](){
 				MultiSocketMonitor::Reset();
 				defer_invalidate_sockets.Cancel();
@@ -103,13 +103,13 @@ public:
 
 protected:
 	/* virtual methods from AsyncInputStream */
-	virtual void DoResume() override {
+	void DoResume() override {
 		snd_pcm_resume(capture_handle);
 
 		InvalidateSockets();
 	}
 
-	virtual void DoSeek(gcc_unused offset_type new_offset) override {
+	void DoSeek(gcc_unused offset_type new_offset) override {
 		/* unreachable because seekable==false */
 		SeekDone();
 	}

src/input/plugins/CdioParanoiaInputPlugin.cxx

@@ -81,7 +81,7 @@ class CdioParanoiaInputStream final : public InputStream {
 		SetReady();
 	}
 
-	~CdioParanoiaInputStream() {
+	~CdioParanoiaInputStream() override {
 		para = {};
 		cdio_cddap_close_no_free_cdio(drv);
 		cdio_destroy(cdio);

src/input/plugins/CurlInputPlugin.cxx

@@ -85,7 +85,7 @@ public:
 			I &&_icy,
 			Mutex &_mutex);
 
-	~CurlInputStream() noexcept;
+	~CurlInputStream() noexcept override;
 
 	CurlInputStream(const CurlInputStream &) = delete;
 	CurlInputStream &operator=(const CurlInputStream &) = delete;
@@ -137,8 +137,8 @@ private:
 	void OnError(std::exception_ptr e) noexcept override;
 
 	/* virtual methods from AsyncInputStream */
-	virtual void DoResume() override;
-	virtual void DoSeek(offset_type new_offset) override;
+	void DoResume() override;
+	void DoSeek(offset_type new_offset) override;
 };
 
 /** libcurl should accept "ICY 200 OK" */

src/input/plugins/MmsInputPlugin.cxx

@@ -42,8 +42,8 @@ public:
 	}
 
 protected:
-	virtual void Open() override;
-	virtual size_t ThreadRead(void *ptr, size_t size) override;
+	void Open() override;
+	size_t ThreadRead(void *ptr, size_t size) override;
 
 	void Close() noexcept override {
 		mmsx_close(mms);

src/input/plugins/NfsInputPlugin.cxx

@@ -47,7 +47,7 @@ public:
 				  NFS_MAX_BUFFERED,
 				  NFS_RESUME_AT) {}
 
-	virtual ~NfsInputStream() {
+	~NfsInputStream() override {
 		DeferClose();
 	}
 
@@ -62,8 +62,8 @@ private:
 
 protected:
 	/* virtual methods from AsyncInputStream */
-	virtual void DoResume() override;
-	virtual void DoSeek(offset_type new_offset) override;
+	void DoResume() override;
+	void DoSeek(offset_type new_offset) override;
 
 private:
 	/* virtual methods from NfsFileReader */

src/input/plugins/QobuzInputPlugin.cxx

@@ -53,7 +53,7 @@ public:
 		qobuz_client->AddLoginHandler(*this);
 	}
 
-	~QobuzInputStream() {
+	~QobuzInputStream() override {
 		qobuz_client->RemoveLoginHandler(*this);
 	}
 

src/input/plugins/SmbclientInputPlugin.cxx

@@ -43,7 +43,7 @@ public:
 		SetReady();
 	}
 
-	~SmbclientInputStream() {
+	~SmbclientInputStream() override {
 		const std::lock_guard<Mutex> lock(smbclient_mutex);
 		smbc_close(fd);
 		smbc_free_context(ctx, 1);

src/input/plugins/TidalInputPlugin.cxx

@@ -65,7 +65,7 @@ public:
 		tidal_session->AddLoginHandler(*this);
 	}
 
-	~TidalInputStream() {
+	~TidalInputStream() override {
 		tidal_session->RemoveLoginHandler(*this);
 	}