output_*: convert to C++

src/OutputControl.hxx

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_OUTPUT_CONTROL_HXX
+#define MPD_OUTPUT_CONTROL_HXX
+
+#include <glib.h>
+
+#include <stddef.h>
+
+struct audio_output;
+struct audio_format;
+struct config_param;
+struct music_pipe;
+struct player_control;
+
+static inline GQuark
+audio_output_quark(void)
+{
+	return g_quark_from_static_string("audio_output");
+}
+
+/**
+ * Enables the device.
+ */
+void
+audio_output_enable(struct audio_output *ao);
+
+/**
+ * Disables the device.
+ */
+void
+audio_output_disable(struct audio_output *ao);
+
+/**
+ * Opens or closes the device, depending on the "enabled" flag.
+ *
+ * @return true if the device is open
+ */
+bool
+audio_output_update(struct audio_output *ao,
+		    const struct audio_format *audio_format,
+		    const struct music_pipe *mp);
+
+void
+audio_output_play(struct audio_output *ao);
+
+void audio_output_pause(struct audio_output *ao);
+
+void
+audio_output_drain_async(struct audio_output *ao);
+
+/**
+ * Clear the "allow_play" flag and send the "CANCEL" command
+ * asynchronously.  To finish the operation, the caller has to call
+ * audio_output_allow_play().
+ */
+void audio_output_cancel(struct audio_output *ao);
+
+/**
+ * Set the "allow_play" and signal the thread.
+ */
+void
+audio_output_allow_play(struct audio_output *ao);
+
+void audio_output_close(struct audio_output *ao);
+
+/**
+ * Closes the audio output, but if the "always_on" flag is set, put it
+ * into pause mode instead.
+ */
+void
+audio_output_release(struct audio_output *ao);
+
+void audio_output_finish(struct audio_output *ao);
+
+#endif