99 lines
3.0 KiB
Java
99 lines
3.0 KiB
Java
package org.thoughtcrime.securesms.audio;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.net.Uri;
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import android.os.Build;
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import android.os.ParcelFileDescriptor;
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import android.support.annotation.NonNull;
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import org.thoughtcrime.securesms.logging.Log;
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import android.util.Pair;
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import org.thoughtcrime.securesms.providers.PersistentBlobProvider;
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import org.thoughtcrime.securesms.util.MediaUtil;
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import org.thoughtcrime.securesms.util.ThreadUtil;
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import org.thoughtcrime.securesms.util.Util;
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import org.thoughtcrime.securesms.util.concurrent.ListenableFuture;
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import org.thoughtcrime.securesms.util.concurrent.SettableFuture;
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import java.io.IOException;
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import java.util.concurrent.ExecutorService;
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@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
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public class AudioRecorder {
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private static final String TAG = AudioRecorder.class.getSimpleName();
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private static final ExecutorService executor = ThreadUtil.newDynamicSingleThreadedExecutor();
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private final Context context;
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private final PersistentBlobProvider blobProvider;
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private AudioCodec audioCodec;
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private Uri captureUri;
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public AudioRecorder(@NonNull Context context) {
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this.context = context;
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this.blobProvider = PersistentBlobProvider.getInstance(context.getApplicationContext());
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}
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public void startRecording() {
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Log.i(TAG, "startRecording()");
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executor.execute(() -> {
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Log.i(TAG, "Running startRecording() + " + Thread.currentThread().getId());
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try {
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if (audioCodec != null) {
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throw new AssertionError("We can only record once at a time.");
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}
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ParcelFileDescriptor fds[] = ParcelFileDescriptor.createPipe();
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captureUri = blobProvider.create(context, new ParcelFileDescriptor.AutoCloseInputStream(fds[0]),
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MediaUtil.AUDIO_AAC, null, null);
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audioCodec = new AudioCodec();
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audioCodec.start(new ParcelFileDescriptor.AutoCloseOutputStream(fds[1]));
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} catch (IOException e) {
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Log.w(TAG, e);
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}
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});
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}
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public @NonNull ListenableFuture<Pair<Uri, Long>> stopRecording() {
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Log.i(TAG, "stopRecording()");
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final SettableFuture<Pair<Uri, Long>> future = new SettableFuture<>();
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executor.execute(() -> {
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if (audioCodec == null) {
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sendToFuture(future, new IOException("MediaRecorder was never initialized successfully!"));
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return;
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}
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audioCodec.stop();
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try {
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long size = MediaUtil.getMediaSize(context, captureUri);
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sendToFuture(future, new Pair<>(captureUri, size));
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} catch (IOException ioe) {
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Log.w(TAG, ioe);
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sendToFuture(future, ioe);
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}
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audioCodec = null;
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captureUri = null;
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});
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return future;
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}
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private <T> void sendToFuture(final SettableFuture<T> future, final Exception exception) {
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Util.runOnMain(() -> future.setException(exception));
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}
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private <T> void sendToFuture(final SettableFuture<T> future, final T result) {
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Util.runOnMain(() -> future.set(result));
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}
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}
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