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AudioAPI: add media key injection #847

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AudioAPI: add media key injection #847

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1 change: 1 addition & 0 deletions app/src/main/java/com/termux/api/TermuxApiReceiver.java
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,7 @@ private void doWork(Context context, Intent intent) {

switch (apiMethod) {
case "AudioInfo":
case "Audio":
AudioAPI.onReceive(this, context, intent);
break;
case "BatteryStatus":
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127 changes: 68 additions & 59 deletions app/src/main/java/com/termux/api/apis/AudioAPI.java
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@
import com.termux.api.util.ResultReturner;
import com.termux.shared.logger.Logger;

import android.view.KeyEvent;

public class AudioAPI {

private static final String LOG_TAG = "AudioAPI";
Expand All @@ -20,69 +22,76 @@ public static void onReceive(TermuxApiReceiver apiReceiver, final Context contex
Logger.logDebug(LOG_TAG, "onReceive");

AudioManager am = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
final String SampleRate = am.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
final String framesPerBuffer = am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
final boolean bluetootha2dp = am.isBluetoothA2dpOn();
final boolean wiredhs = am.isWiredHeadsetOn();

final int sr, bs, sr_ll, bs_ll, sr_ps, bs_ps;
AudioTrack at;
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.build();
sr = at.getSampleRate();
bs = at.getBufferSizeInFrames();
at.release();
ResultReturner.returnData(apiReceiver, intent, new ResultReturner.ResultJsonWriter() {
public void writeJson(JsonWriter out) throws Exception {
if (!intent.hasExtra("media-key")) {
final String SampleRate = am.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
final String framesPerBuffer = am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
final boolean bluetootha2dp = am.isBluetoothA2dpOn();
final boolean wiredhs = am.isWiredHeadsetOn();

final int sr, bs, sr_ll, bs_ll, sr_ps, bs_ps;
AudioTrack at;
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.build();
sr = at.getSampleRate();
bs = at.getBufferSizeInFrames();
at.release();

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_LOW_LATENCY)
.build();
} else {
AudioAttributes aa = new AudioAttributes.Builder()
.setFlags(AudioAttributes.FLAG_LOW_LATENCY)
.build();
at = new AudioTrack.Builder()
.setAudioAttributes(aa)
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.build();
}
sr_ll = at.getSampleRate();
bs_ll = at.getBufferSizeInFrames();
at.release();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_LOW_LATENCY)
.build();
} else {
AudioAttributes aa = new AudioAttributes.Builder()
.setFlags(AudioAttributes.FLAG_LOW_LATENCY)
.build();
at = new AudioTrack.Builder()
.setAudioAttributes(aa)
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.build();
}
sr_ll = at.getSampleRate();
bs_ll = at.getBufferSizeInFrames();
at.release();

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_POWER_SAVING)
.build();
sr_ps = at.getSampleRate();
bs_ps = at.getBufferSizeInFrames();
at.release();
} else {
sr_ps = sr;
bs_ps = bs;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
at = new AudioTrack.Builder()
.setBufferSizeInBytes(4) // one 16bit 2ch frame
.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_POWER_SAVING)
.build();
sr_ps = at.getSampleRate();
bs_ps = at.getBufferSizeInFrames();
at.release();
} else {
sr_ps = sr;
bs_ps = bs;
}

ResultReturner.returnData(apiReceiver, intent, new ResultReturner.ResultJsonWriter() {
public void writeJson(JsonWriter out) throws Exception {
out.beginObject();
out.name("PROPERTY_OUTPUT_SAMPLE_RATE").value(SampleRate);
out.name("PROPERTY_OUTPUT_FRAMES_PER_BUFFER").value(framesPerBuffer);
out.name("AUDIOTRACK_SAMPLE_RATE").value(sr);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES").value(bs);
if (sr_ll != sr || bs_ll != bs) { // all or nothing
out.name("AUDIOTRACK_SAMPLE_RATE_LOW_LATENCY").value(sr_ll);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES_LOW_LATENCY").value(bs_ll);
}
if (sr_ps != sr || bs_ps != bs) { // all or nothing
out.name("AUDIOTRACK_SAMPLE_RATE_POWER_SAVING").value(sr_ps);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES_POWER_SAVING").value(bs_ps);
}
out.name("BLUETOOTH_A2DP_IS_ON").value(bluetootha2dp);
out.name("WIREDHEADSET_IS_CONNECTED").value(wiredhs);
out.endObject();
out.beginObject();
out.name("PROPERTY_OUTPUT_SAMPLE_RATE").value(SampleRate);
out.name("PROPERTY_OUTPUT_FRAMES_PER_BUFFER").value(framesPerBuffer);
out.name("AUDIOTRACK_SAMPLE_RATE").value(sr);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES").value(bs);
if (sr_ll != sr || bs_ll != bs) { // all or nothing
out.name("AUDIOTRACK_SAMPLE_RATE_LOW_LATENCY").value(sr_ll);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES_LOW_LATENCY").value(bs_ll);
}
if (sr_ps != sr || bs_ps != bs) { // all or nothing
out.name("AUDIOTRACK_SAMPLE_RATE_POWER_SAVING").value(sr_ps);
out.name("AUDIOTRACK_BUFFER_SIZE_IN_FRAMES_POWER_SAVING").value(bs_ps);
}
out.name("BLUETOOTH_A2DP_IS_ON").value(bluetootha2dp);
out.name("WIREDHEADSET_IS_CONNECTED").value(wiredhs);
out.endObject();
} else {
int keyCode = (int)KeyEvent.class.getDeclaredField("KEYCODE_MEDIA_" + intent.getStringExtra("media-key").toUpperCase()).get(null);
am.dispatchMediaKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
am.dispatchMediaKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
}
}
});
}
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