1 files changed, 97 insertions, 0 deletions
diff --git a/include/audio_out.h b/include/audio_out.h
new file mode 100644
index 000000000..3e0118325
--- /dev/null
+++ b/include/audio_out.h
@@ -0,0 +1,97 @@
+/* 
+ * Copyright (C) 2000-2001 the xine project
+ * 
+ * This file is part of xine, a unix video player.
+ * 
+ * xine 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.
+ * 
+ * xine 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * $Id: audio_out.h,v 1.1 2001/04/18 22:36:42 f1rmb Exp $
+ */
+#ifndef HAVE_AUDIO_OUT_H
+#define HAVE_AUDIO_OUT_H
+
+#include <inttypes.h>
+
+/*
+ * audio output modes  Used as Bitfield in AC3 decoder
+ */
+
+#define AO_MODE_AC3      1
+#define AO_MODE_MONO     2  /* 1 sample ==  2 bytes */
+#define AO_MODE_STEREO   4  /* 1 sample ==  4 bytes */
+#define AO_MODE_4CHANNEL 8  /* 1 sample ==  8 bytes */
+#define AO_MODE_5CHANNEL 16 /* 1 sample == 10 bytes */
+
+typedef struct ao_functions_s
+{
+
+  /*
+   * find out if desired output mode is supported by
+   * this driver
+   */
+
+  int (*is_mode_supported) (int mode);
+
+  /*
+   * init device - buffer will be flushed(!)
+   * return value: <=0 : failure, 1 : ok
+   */
+
+  int (*open)(uint32_t bits, uint32_t rate, int mode);
+
+  /*
+   * write audio data to output buffer - may block
+   * audio driver must sync sample playback with metronom
+   */
+
+  void (*write_audio_data)(int16_t* audio_data, uint32_t num_samples, 
+			   uint32_t pts);
+
+  /*
+   * close the audio driver
+   */
+
+  void (*close)(void);
+
+} ao_functions_t;
+
+/*
+ * available drivers:
+ */
+
+#define AO_DRIVER_UNSET -1
+#define AO_DRIVER_NULL   0
+#define AO_DRIVER_OSS    1
+#if defined(HAVE_ALSA)
+# define AO_DRIVER_ALSA  2
+# if defined(HAVE_ESD)
+#  define AO_DRIVER_ESD  3
+# endif
+#else /* no ALSA */
+# if defined(HAVE_ESD)
+#  define AO_DRIVER_ESD  2
+# endif
+#endif
+
+/*
+ * find right device driver, init it
+ */
+
+ao_functions_t *ao_init(char *driver_name) ;
+
+char *ao_get_available_drivers ();
+
+#endif
+