all: clean up cAudio header, separate private stuff

libspark/audio_priv.h

@@ -0,0 +1,62 @@
+/*
+ * (C) 2010-2013 Stefan Seyfried
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * private audio stuff, to be used inside libstb-hal only
+ */
+
+#ifndef __audio_priv__
+#define __audio_priv__
+
+#include <audio_hal.h>
+class ADec
+{
+public:
+	/* construct & destruct */
+	ADec(void);
+	~ADec(void);
+
+	int SetMute(bool enable, bool remember = true);
+
+	/* volume, min = 0, max = 255 */
+	int setVolume(unsigned int left, unsigned int right);
+
+	/* start and stop audio */
+	int Start(void);
+	int Stop(void);
+	void SetStreamType(AUDIO_FORMAT type);
+	void SetSyncMode(AVSYNC_TYPE Mode);
+
+	/* select channels */
+	int PrepareClipPlay(int uNoOfChannels, int uSampleRate, int uBitsPerSample, int bLittleEndian);
+	int WriteClip(unsigned char * buffer, int size);
+	int StopClip();
+	void setBypassMode(bool disable);
+	void openDevice();
+	void closeDevice();
+
+	/* variables */
+	int fd;
+	int clipfd; /* for pcm playback */
+	int mixer_fd;  /* if we are using the OSS mixer */
+	int mixer_num; /* oss mixer to use, if any */
+	AUDIO_FORMAT StreamType;
+	bool started;
+	int volume;
+	bool muted;
+};
+
+#endif
+