/*
* AlsaMixerElement.java
*
* This file is part of Tritonus: http://www.tritonus.org/
*/
/*
* Copyright (c) 2001 - 2002 by Matthias Pfisterer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
|<--- this code is formatted to fit into 80 columns --->|
*/
package org.tritonus.lowlevel.alsa;
import org.tritonus.share.TDebug;
/** TODO:
*/
public class AlsaMixerElement
{
/* Channel type constants.
They mirror the values of snd_mixer_selem_channel_id_t.
*/
/** Unknown */
public static final int SND_MIXER_SCHN_UNKNOWN = -1;
/** Front left */
public static final int SND_MIXER_SCHN_FRONT_LEFT = 0;
/** Front right */
public static final int SND_MIXER_SCHN_FRONT_RIGHT = 1;
/** Front center */
public static final int SND_MIXER_SCHN_FRONT_CENTER = 2;
/** Rear left */
public static final int SND_MIXER_SCHN_REAR_LEFT = 3;
/** Rear right */
public static final int SND_MIXER_SCHN_REAR_RIGHT = 4;
/** Woofer */
public static final int SND_MIXER_SCHN_WOOFER = 5;
public static final int SND_MIXER_SCHN_LAST = 31;
/** Mono (Front left alias) */
public static final int SND_MIXER_SCHN_MONO = SND_MIXER_SCHN_FRONT_LEFT;
private AlsaMixer m_mixer;
@SuppressWarnings("unused")
private long m_lNativeHandle;
static
{
Alsa.loadNativeLibrary();
if (TDebug.TraceAlsaMixerNative)
{
setTrace(true);
}
}
public AlsaMixerElement(AlsaMixer mixer,
int nIndex,
String strName)
{
m_mixer = mixer;
int nReturn;
nReturn = open(getMixer(), nIndex, strName);
{
if (nReturn < 0)
{
throw new RuntimeException("cannot open");
}
}
}
/** Calls snd_mixer_find_selem().
*/
private native int open(AlsaMixer mixer,
int nIndex,
String strName);
private AlsaMixer getMixer()
{
return m_mixer;
}
// TODO: getId()
/** Calls snd_mixer_selem_get_name().
*/
public native String getName();
/** Calls snd_mixer_selem_get_index().
*/
public native int getIndex();
/** Calls snd_mixer_selem_is_active().
*/
public native boolean isActive();
/** Calls snd_mixer_selem_is_playback_mono().
*/
public native boolean isPlaybackMono();
/** Calls snd_mixer_selem_has_playback_channel().
*/
public native boolean hasPlaybackChannel(int nChannelType);
/** Calls snd_mixer_selem_is_capture_mono().
*/
public native boolean isCaptureMono();
/** Calls snd_mixer_selem_has_capture_channel().
*/
public native boolean hasCaptureChannel(int nChannelType);
/** Calls snd_mixer_selem_get_capture_group().
*/
public native int getCaptureGroup();
/** Calls snd_mixer_selem_has_common_volume().
*/
public native boolean hasCommonVolume();
/** Calls snd_mixer_selem_has_playback_volume().
*/
public native boolean hasPlaybackVolume();
/** Calls snd_mixer_selem_has_playback_volume_joined().
*/
public native boolean hasPlaybackVolumeJoined();
/** Calls snd_mixer_selem_has_capture_volume().
*/
public native boolean hasCaptureVolume();
/** Calls snd_mixer_selem_has_capture_volume_joined().
*/
public native boolean hasCaptureVolumeJoined();
/** Calls snd_mixer_selem_has_common_switch().
*/
public native boolean hasCommonSwitch();
/** Calls snd_mixer_selem_has_playback_switch().
*/
public native boolean hasPlaybackSwitch();
/** Calls snd_mixer_selem_has_playback_switch_joined().
*/
public native boolean hasPlaybackSwitchJoined();
/** Calls snd_mixer_selem_has_capture_switch().
*/
public native boolean hasCaptureSwitch();
/** Calls snd_mixer_selem_has_capture_switch_joined().
*/
public native boolean hasCaptureSwitchJoinded();
/** Calls snd_mixer_selem_has_capture_switch_exclusive().
*/
public native boolean hasCaptureSwitchExclusive();
/** Calls snd_mixer_selem_get_playback_volume().
*/
public native int getPlaybackVolume(int nChannelType);
/** Calls snd_mixer_selem_get_capture_volume().
*/
public native int getCaptureVolume(int nChannelType);
/** Calls snd_mixer_selem_get_playback_switch().
*/
public native boolean getPlaybackSwitch(int nChannelType);
/** Calls snd_mixer_selem_get_capture_switch().
*/
public native boolean getCaptureSwitch(int nChannelType);
/** Calls snd_mixer_selem_set_playback_volume().
*/
public native void setPlaybackVolume(int nChannelType, int nValue);
/** Calls snd_mixer_selem_set_capture_volume().
*/
public native void setCaptureVolume(int nChannelType, int nValue);
/** Calls snd_mixer_selem_set_playback_volume_all().
*/
public native void setPlaybackVolumeAll(int nValue);
/** Calls snd_mixer_selem_set_capture_volume_all().
*/
public native void setCaptureVolumeAll(int nValue);
/** Calls snd_mixer_selem_set_playback_switch().
*/
public native void setPlaybackSwitch(int nChannelType, boolean bValue);
/** Calls snd_mixer_selem_set_capture_switch().
*/
public native void setCaptureSwitch(int nChannelType, boolean bValue);
/** Calls snd_mixer_selem_set_playback_switch_all().
*/
public native void setPlaybackSwitchAll(boolean bValue);
/** Calls snd_mixer_selem_set_capture_switch_all().
*/
public native void setCaptureSwitchAll(boolean bValue);
/** Calls snd_mixer_selem_get_playback_volume_range().
anValues[0]: minimum
anValues[1]: maximum
*/
public native void getPlaybackVolumeRange(int[] anValues);
/** Calls snd_mixer_selem_get_capture_volume_range().
anValues[0]: minimum
anValues[1]: maximum
*/
public native void getCaptureVolumeRange(int[] anValues);
/** Calls snd_mixer_selem_set_playback_volume_range().
*/
public native void setPlaybackVolumeRange(int nMin, int nMax);
/** Calls snd_mixer_selem_set_capture_volume_range().
*/
public native void setCaptureVolumeRange(int nMin, int nMax);
/** Calls snd_mixer_selem_channel_name().
*/
public static native String getChannelName(int nChannelType);
/** TODO:
*/
private static native void setTrace(boolean bTrace);
}
/*** AlsaMixerElement.java ***/