/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.media;
/**
* This class provides methods to play DTMF tones (ITU-T Recommendation Q.23),
* call supervisory tones (3GPP TS 22.001, CEPT) and proprietary tones (3GPP TS 31.111).
* Depending on call state and routing options, tones are mixed to the downlink audio
* or output to the speaker phone or headset.
* This API is not for generating tones over the uplink audio path.
*/
public class ToneGenerator
{
/* Values for toneType parameter of ToneGenerator() constructor */
/*
* List of all available tones: These constants must be kept consistant with
* the enum in ToneGenerator C++ class. */
/**
* DTMF tone for key 0: 1336Hz, 941Hz, continuous</p>
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_0 = 0;
/**
* DTMF tone for key 1: 1209Hz, 697Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_1 = 1;
/**
* DTMF tone for key 2: 1336Hz, 697Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_2 = 2;
/**
* DTMF tone for key 3: 1477Hz, 697Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_3 = 3;
/**
* DTMF tone for key 4: 1209Hz, 770Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_4 = 4;
/**
* DTMF tone for key 5: 1336Hz, 770Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_5 = 5;
/**
* DTMF tone for key 6: 1477Hz, 770Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_6 = 6;
/**
* DTMF tone for key 7: 1209Hz, 852Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_7 = 7;
/**
* DTMF tone for key 8: 1336Hz, 852Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_8 = 8;
/**
* DTMF tone for key 9: 1477Hz, 852Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_9 = 9;
/**
* DTMF tone for key *: 1209Hz, 941Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_S = 10;
/**
* DTMF tone for key #: 1477Hz, 941Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_P = 11;
/**
* DTMF tone for key A: 1633Hz, 697Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_A = 12;
/**
* DTMF tone for key B: 1633Hz, 770Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_B = 13;
/**
* DTMF tone for key C: 1633Hz, 852Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_C = 14;
/**
* DTMF tone for key D: 1633Hz, 941Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_DTMF_D = 15;
/**
* Call supervisory tone, Dial tone: 425Hz, continuous
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_DIAL = 16;
/**
* Call supervisory tone, Busy: 425Hz, 500ms ON, 500ms OFF...
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_BUSY = 17;
/**
* Call supervisory tone, Congestion: 425Hz, 200ms ON, 200ms OFF...
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_CONGESTION = 18;
/**
* Call supervisory tone, Radio path acknowlegment : 425Hz, 200ms ON
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_RADIO_ACK = 19;
/**
* Call supervisory tone, Radio path not available: 425Hz, 200ms ON, 200 OFF 3 bursts
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_RADIO_NOTAVAIL = 20;
/**
* Call supervisory tone, Error/Special info: 950Hz+1400Hz+1800Hz, 330ms ON, 1s OFF...
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_ERROR = 21;
/**
* Call supervisory tone, Call Waiting: 425Hz, 200ms ON, 600ms OFF, 200ms ON, 3s OFF...
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_CALL_WAITING = 22;
/**
* Call supervisory tone, Ring Tone: 425Hz, 1s ON, 4s OFF...
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_SUP_RINGTONE = 23;
/**
* Proprietary tone, general beep: 400Hz+1200Hz, 35ms ON
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_PROP_BEEP = 24;
/**
* Proprietary tone, positive acknowlegement: 1200Hz, 100ms ON, 100ms OFF 2 bursts
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_PROP_ACK = 25;
/**
* Proprietary tone, negative acknowlegement: 300Hz+400Hz+500Hz, 400ms ON
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_PROP_NACK = 26;
/**
* Proprietary tone, prompt tone: 400Hz+1200Hz, 200ms ON
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_PROP_PROMPT = 27;
/**
* Proprietary tone, general double beep: twice 400Hz+1200Hz, 35ms ON, 200ms OFF, 35ms ON
*
* @see #ToneGenerator(int, int)
*/
public static final int TONE_PROP_BEEP2 = 28;
/** Maximum volume, for use with {@link #ToneGenerator(int,int)} */
public static final int MAX_VOLUME = AudioSystem.MAX_VOLUME;
/** Minimum volume setting, for use with {@link #ToneGenerator(int,int)} */
public static final int MIN_VOLUME = AudioSystem.MIN_VOLUME;
/**
* ToneGenerator class contructor specifying output stream type and volume.
*
* @param streamType The streame type used for tone playback (e.g. STREAM_MUSIC).
* @param volume The volume of the tone, given in percentage of maximum volume (from 0-100).
*
*/
public ToneGenerator(int streamType, int volume) {
native_setup(streamType, volume);
}
/**
* This method starts the playback of a tone of the specified type.
* only one tone can play at a time: if a tone is playing while this method is called,
* this tone is stopped and replaced by the one requested.
* @param toneType The type of tone generate chosen from the following list:
* <ul>
* <li>{@link #TONE_DTMF_0}
* <li>{@link #TONE_DTMF_1}
* <li>{@link #TONE_DTMF_2}
* <li>{@link #TONE_DTMF_3}
* <li>{@link #TONE_DTMF_4}
* <li>{@link #TONE_DTMF_5}
* <li>{@link #TONE_DTMF_6}
* <li>{@link #TONE_DTMF_7}
* <li>{@link #TONE_DTMF_8}
* <li>{@link #TONE_DTMF_9}
* <li>{@link #TONE_DTMF_A}
* <li>{@link #TONE_DTMF_B}
* <li>{@link #TONE_DTMF_C}
* <li>{@link #TONE_DTMF_D}
* <li>{@link #TONE_SUP_DIAL}
* <li>{@link #TONE_SUP_BUSY}
* <li>{@link #TONE_SUP_CONGESTION}
* <li>{@link #TONE_SUP_RADIO_ACK}
* <li>{@link #TONE_SUP_RADIO_NOTAVAIL}
* <li>{@link #TONE_SUP_ERROR}
* <li>{@link #TONE_SUP_CALL_WAITING}
* <li>{@link #TONE_SUP_RINGTONE}
* <li>{@link #TONE_PROP_BEEP}
* <li>{@link #TONE_PROP_ACK}
* <li>{@link #TONE_PROP_NACK}
* <li>{@link #TONE_PROP_PROMPT}
* <li>{@link #TONE_PROP_BEEP2}
* </ul>
* @see #ToneGenerator(int, int)
*/
public native boolean startTone(int toneType);
/**
* This method stops the tone currently playing playback.
* @see #ToneGenerator(int, int)
*/
public native void stopTone();
/**
* Releases resources associated with this ToneGenerator object. It is good
* practice to call this method when you're done using the ToneGenerator.
*/
public native void release();
private native final void native_setup(int streamType, int volume);
private native final void native_finalize();
protected void finalize() { native_finalize(); }
private int mNativeContext; // accessed by native methods
}
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