Imported Upstream version 1.1.0upstream/1.1.0

1 files changed, 125 insertions, 0 deletions

diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h
new file mode 100644
index 0000000..58956c3
--- /dev/null
+++ b/include/linux/dvb/audio.h
@@ -0,0 +1,125 @@
+/* 
+ * audio.h
+ *
+ * Copyright (C) 2000 Ralph  Metzler <ralph@convergence.de>
+ *                  & Marcus Metzler <marcus@convergence.de>
+                      for convergence integrated media GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Lesser Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * 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 Lesser 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.
+ *
+ */
+
+#ifndef _DVBAUDIO_H_
+#define _DVBAUDIO_H_
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+
+
+typedef enum {
+        AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */ 
+	AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */ 
+} audio_stream_source_t;
+
+
+typedef enum { 
+	AUDIO_STOPPED,      /* Device is stopped */ 
+        AUDIO_PLAYING,      /* Device is currently playing */ 
+	AUDIO_PAUSED        /* Device is paused */ 
+} audio_play_state_t;
+
+
+typedef enum {
+        AUDIO_STEREO,
+        AUDIO_MONO_LEFT, 
+	AUDIO_MONO_RIGHT 
+} audio_channel_select_t;
+
+
+typedef struct audio_mixer { 
+        unsigned int volume_left;
+        unsigned int volume_right;
+  // what else do we need? bass, pass-through, ...
+} audio_mixer_t;
+
+
+typedef struct audio_status { 
+        int                    AV_sync_state;  /* sync audio and video? */
+        int                    mute_state;     /* audio is muted */ 
+        audio_play_state_t     play_state;     /* current playback state */
+        audio_stream_source_t  stream_source;  /* current stream source */
+        audio_channel_select_t channel_select; /* currently selected channel */
+        int                    bypass_mode;    /* pass on audio data to */
+	audio_mixer_t	       mixer_state;    /* current mixer state */
+} audio_status_t;                              /* separate decoder hardware */
+
+
+typedef
+struct audio_karaoke{  /* if Vocal1 or Vocal2 are non-zero, they get mixed  */
+	int vocal1;    /* into left and right t at 70% each */
+	int vocal2;    /* if both, Vocal1 and Vocal2 are non-zero, Vocal1 gets*/
+	int melody;    /* mixed into the left channel and */
+                       /* Vocal2 into the right channel at 100% each. */
+                       /* if Melody is non-zero, the melody channel gets mixed*/
+} audio_karaoke_t;     /* into left and right  */
+
+
+typedef uint16_t audio_attributes_t;
+/*   bits: descr. */
+/*   15-13 audio coding mode (0=ac3, 2=mpeg1, 3=mpeg2ext, 4=LPCM, 6=DTS, */
+/*   12    multichannel extension */
+/*   11-10 audio type (0=not spec, 1=language included) */
+/*    9- 8 audio application mode (0=not spec, 1=karaoke, 2=surround) */
+/*    7- 6 Quantization / DRC (mpeg audio: 1=DRC exists)(lpcm: 0=16bit,  */
+/*    5- 4 Sample frequency fs (0=48kHz, 1=96kHz) */
+/*    2- 0 number of audio channels (n+1 channels) */
+ 
+
+/* for GET_CAPABILITIES and SET_FORMAT, the latter should only set one bit */
+#define AUDIO_CAP_DTS    1
+#define AUDIO_CAP_LPCM   2
+#define AUDIO_CAP_MP1    4
+#define AUDIO_CAP_MP2    8
+#define AUDIO_CAP_MP3   16
+#define AUDIO_CAP_AAC   32
+#define AUDIO_CAP_OGG   64
+#define AUDIO_CAP_SDDS 128
+#define AUDIO_CAP_AC3  256
+
+#define AUDIO_STOP                 _IO('o', 1) 
+#define AUDIO_PLAY                 _IO('o', 2)
+#define AUDIO_PAUSE                _IO('o', 3)
+#define AUDIO_CONTINUE             _IO('o', 4)
+#define AUDIO_SELECT_SOURCE        _IO('o', 5)
+#define AUDIO_SET_MUTE             _IO('o', 6)
+#define AUDIO_SET_AV_SYNC          _IO('o', 7)
+#define AUDIO_SET_BYPASS_MODE      _IO('o', 8)
+#define AUDIO_CHANNEL_SELECT       _IO('o', 9)
+#define AUDIO_GET_STATUS           _IOR('o', 10, audio_status_t)
+
+#define AUDIO_GET_CAPABILITIES     _IOR('o', 11, unsigned int)
+#define AUDIO_CLEAR_BUFFER         _IO('o',  12)
+#define AUDIO_SET_ID               _IO('o', 13)
+#define AUDIO_SET_MIXER            _IOW('o', 14, audio_mixer_t)
+#define AUDIO_SET_STREAMTYPE       _IO('o', 15)
+#define AUDIO_SET_EXT_ID           _IO('o', 16)
+#define AUDIO_SET_ATTRIBUTES       _IOW('o', 17, audio_attributes_t)
+#define AUDIO_SET_KARAOKE          _IOW('o', 18, audio_karaoke_t)
+
+#endif /* _DVBAUDIO_H_ */
+