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Removed the ancient Android audio driver

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OpenSLES is well supported on Android 4.0 and later.
This commit is contained in:
Sam Lantinga
2024-07-29 08:05:36 -07:00
parent 446c05a001
commit 691cf15e75
10 changed files with 11 additions and 935 deletions
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374
android-project/app/src/main/java/org/libsdl/app/SDLAudioManager.java
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@@ -3,11 +3,7 @@ package org.libsdl.app;
import android.content.Context;
import android.media.AudioDeviceCallback;
import android.media.AudioDeviceInfo;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioRecord;
import android.media.AudioTrack;
import android.media.MediaRecorder;
import android.os.Build;
import android.util.Log;
@@ -17,15 +13,11 @@ import java.util.ArrayList;
public class SDLAudioManager {
protected static final String TAG = "SDLAudio";
protected static AudioTrack mAudioTrack;
protected static AudioRecord mAudioRecord;
protected static Context mContext;
private static AudioDeviceCallback mAudioDeviceCallback;
public static void initialize() {
mAudioTrack = null;
mAudioRecord = null;
mAudioDeviceCallback = null;
if(Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */)
@@ -58,230 +50,6 @@ public class SDLAudioManager {
// Audio
protected static String getAudioFormatString(int audioFormat) {
switch (audioFormat) {
case AudioFormat.ENCODING_PCM_8BIT:
return "8-bit";
case AudioFormat.ENCODING_PCM_16BIT:
return "16-bit";
case AudioFormat.ENCODING_PCM_FLOAT:
return "float";
default:
return Integer.toString(audioFormat);
}
}
protected static int[] open(boolean recording, int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
int channelConfig;
int sampleSize;
int frameSize;
Log.v(TAG, "Opening " + (recording ? "recording" : "playback") + ", requested " + desiredFrames + " frames of " + desiredChannels + " channel " + getAudioFormatString(audioFormat) + " audio at " + sampleRate + " Hz");
/* On older devices let's use known good settings */
if (Build.VERSION.SDK_INT < 21 /* Android 5.0 (LOLLIPOP) */) {
if (desiredChannels > 2) {
desiredChannels = 2;
}
}
/* AudioTrack has sample rate limitation of 48000 (fixed in 5.0.2) */
if (Build.VERSION.SDK_INT < 22 /* Android 5.1 (LOLLIPOP_MR1) */) {
if (sampleRate < 8000) {
sampleRate = 8000;
} else if (sampleRate > 48000) {
sampleRate = 48000;
}
}
if (audioFormat == AudioFormat.ENCODING_PCM_FLOAT) {
int minSDKVersion = (recording ? 23 /* Android 6.0 (M) */ : 21 /* Android 5.0 (LOLLIPOP) */);
if (Build.VERSION.SDK_INT < minSDKVersion) {
audioFormat = AudioFormat.ENCODING_PCM_16BIT;
}
}
switch (audioFormat)
{
case AudioFormat.ENCODING_PCM_8BIT:
sampleSize = 1;
break;
case AudioFormat.ENCODING_PCM_16BIT:
sampleSize = 2;
break;
case AudioFormat.ENCODING_PCM_FLOAT:
sampleSize = 4;
break;
default:
Log.v(TAG, "Requested format " + audioFormat + ", getting ENCODING_PCM_16BIT");
audioFormat = AudioFormat.ENCODING_PCM_16BIT;
sampleSize = 2;
break;
}
if (recording) {
switch (desiredChannels) {
case 1:
channelConfig = AudioFormat.CHANNEL_IN_MONO;
break;
case 2:
channelConfig = AudioFormat.CHANNEL_IN_STEREO;
break;
default:
Log.v(TAG, "Requested " + desiredChannels + " channels, getting stereo");
desiredChannels = 2;
channelConfig = AudioFormat.CHANNEL_IN_STEREO;
break;
}
} else {
switch (desiredChannels) {
case 1:
channelConfig = AudioFormat.CHANNEL_OUT_MONO;
break;
case 2:
channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
break;
case 3:
channelConfig = AudioFormat.CHANNEL_OUT_STEREO | AudioFormat.CHANNEL_OUT_FRONT_CENTER;
break;
case 4:
channelConfig = AudioFormat.CHANNEL_OUT_QUAD;
break;
case 5:
channelConfig = AudioFormat.CHANNEL_OUT_QUAD | AudioFormat.CHANNEL_OUT_FRONT_CENTER;
break;
case 6:
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1;
break;
case 7:
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1 | AudioFormat.CHANNEL_OUT_BACK_CENTER;
break;
case 8:
if (Build.VERSION.SDK_INT >= 23 /* Android 6.0 (M) */) {
channelConfig = AudioFormat.CHANNEL_OUT_7POINT1_SURROUND;
} else {
Log.v(TAG, "Requested " + desiredChannels + " channels, getting 5.1 surround");
desiredChannels = 6;
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1;
}
break;
default:
Log.v(TAG, "Requested " + desiredChannels + " channels, getting stereo");
desiredChannels = 2;
channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
break;
}
/*
Log.v(TAG, "Speaker configuration (and order of channels):");
if ((channelConfig & 0x00000004) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_LEFT");
}
if ((channelConfig & 0x00000008) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_RIGHT");
}
if ((channelConfig & 0x00000010) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_CENTER");
}
if ((channelConfig & 0x00000020) != 0) {
Log.v(TAG, " CHANNEL_OUT_LOW_FREQUENCY");
}
if ((channelConfig & 0x00000040) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_LEFT");
}
if ((channelConfig & 0x00000080) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_RIGHT");
}
if ((channelConfig & 0x00000100) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_LEFT_OF_CENTER");
}
if ((channelConfig & 0x00000200) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_RIGHT_OF_CENTER");
}
if ((channelConfig & 0x00000400) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_CENTER");
}
if ((channelConfig & 0x00000800) != 0) {
Log.v(TAG, " CHANNEL_OUT_SIDE_LEFT");
}
if ((channelConfig & 0x00001000) != 0) {
Log.v(TAG, " CHANNEL_OUT_SIDE_RIGHT");
}
*/
}
frameSize = (sampleSize * desiredChannels);
// Let the user pick a larger buffer if they really want -- but ye
// gods they probably shouldn't, the minimums are horrifyingly high
// latency already
int minBufferSize;
if (recording) {
minBufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
} else {
minBufferSize = AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat);
}
desiredFrames = Math.max(desiredFrames, (minBufferSize + frameSize - 1) / frameSize);
int[] results = new int[4];
if (recording) {
if (mAudioRecord == null) {
mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, sampleRate,
channelConfig, audioFormat, desiredFrames * frameSize);
// see notes about AudioTrack state in audioOpen(), above. Probably also applies here.
if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
Log.e(TAG, "Failed during initialization of AudioRecord");
mAudioRecord.release();
mAudioRecord = null;
return null;
}
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */ && deviceId != 0) {
mAudioRecord.setPreferredDevice(getPlaybackAudioDeviceInfo(deviceId));
}
mAudioRecord.startRecording();
}
results[0] = mAudioRecord.getSampleRate();
results[1] = mAudioRecord.getAudioFormat();
results[2] = mAudioRecord.getChannelCount();
} else {
if (mAudioTrack == null) {
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
// Instantiating AudioTrack can "succeed" without an exception and the track may still be invalid
// Ref: https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/media/java/android/media/AudioTrack.java
// Ref: http://developer.android.com/reference/android/media/AudioTrack.html#getState()
if (mAudioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
/* Try again, with safer values */
Log.e(TAG, "Failed during initialization of Audio Track");
mAudioTrack.release();
mAudioTrack = null;
return null;
}
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */ && deviceId != 0) {
mAudioTrack.setPreferredDevice(getInputAudioDeviceInfo(deviceId));
}
mAudioTrack.play();
}
results[0] = mAudioTrack.getSampleRate();
results[1] = mAudioTrack.getAudioFormat();
results[2] = mAudioTrack.getChannelCount();
}
results[3] = desiredFrames;
Log.v(TAG, "Opening " + (recording ? "recording" : "playback") + ", got " + results[3] + " frames of " + results[2] + " channel " + getAudioFormatString(results[1]) + " audio at " + results[0] + " Hz");
return results;
}
private static AudioDeviceInfo getInputAudioDeviceInfo(int deviceId) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
@@ -330,148 +98,6 @@ public class SDLAudioManager {
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] audioOpen(int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
return open(false, sampleRate, audioFormat, desiredChannels, desiredFrames, deviceId);
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteFloatBuffer(float[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
if (android.os.Build.VERSION.SDK_INT < 21 /* Android 5.0 (LOLLIPOP) */) {
Log.e(TAG, "Attempted to make an incompatible audio call with uninitialized audio! (floating-point output is supported since Android 5.0 Lollipop)");
return;
}
for (int i = 0; i < buffer.length;) {
int result = mAudioTrack.write(buffer, i, buffer.length - i, AudioTrack.WRITE_BLOCKING);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(float)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteShortBuffer(short[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
for (int i = 0; i < buffer.length;) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(short)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteByteBuffer(byte[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
for (int i = 0; i < buffer.length; ) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(byte)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] recordingOpen(int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
return open(true, sampleRate, audioFormat, desiredChannels, desiredFrames, deviceId);
}
/** This method is called by SDL using JNI. */
public static int recordingReadFloatBuffer(float[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return 0;
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static int recordingReadShortBuffer(short[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return mAudioRecord.read(buffer, 0, buffer.length);
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static int recordingReadByteBuffer(byte[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return mAudioRecord.read(buffer, 0, buffer.length);
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static void audioClose() {
if (mAudioTrack != null) {
mAudioTrack.stop();
mAudioTrack.release();
mAudioTrack = null;
}
}
/** This method is called by SDL using JNI. */
public static void recordingClose() {
if (mAudioRecord != null) {
mAudioRecord.stop();
mAudioRecord.release();
mAudioRecord = null;
}
}
/** This method is called by SDL using JNI. */
public static void audioSetThreadPriority(boolean recording, int device_id) {
try {