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import android.media.MediaRecorder;
import android.support.annotation.NonNull;
import com.f2prateek.rx.android.schedulers.AndroidSchedulers;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import rx.Observable;
import rx.subscriptions.Subscriptions;
public class RxMediaRecorder {
public static @NonNull MediaRecorder into(@NonNull File file) {
final MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_WB);
recorder.setOutputFile(file.getAbsolutePath());
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_WB);
return recorder;
}
public static @NonNull Observable<Long> record(@NonNull MediaRecorder recorder) {
return prepare(recorder).flatMap(RxMediaRecorder::stream);
}
static @NonNull Observable<MediaRecorder> prepare(@NonNull MediaRecorder recorder) {
return Observable.create(subscriber -> {
try {
Threads.assertBg();
recorder.prepare();
subscriber.onNext(recorder);
subscriber.onCompleted();
} catch (IOException e) {
subscriber.onError(e);
}
});
}
static @NonNull Observable<Long> stream(@NonNull MediaRecorder recorder) {
return Observable.create(sub -> {
sub.add(Subscriptions.create(() -> {
Threads.assertBg();
recorder.stop();
recorder.reset();
recorder.release();
}));
recorder.start();
final long start = System.currentTimeMillis();
sub.add(Observable.interval(16, TimeUnit.MILLISECONDS, AndroidSchedulers.mainThread())
.map(x -> System.currentTimeMillis() - start)
.subscribe(sub));
});
}
}
@nikunjgundaniya

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Brilliant!

@uDevel

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uDevel Nov 23, 2016

Can you put license on this code so people can use it?

Thanks!

uDevel commented Nov 23, 2016

Can you put license on this code so people can use it?

Thanks!

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