/** One time setup of the FFmpeg library. */
public Observable<Void> setupFFmpeg() {
if (!firstSetup.get()) return Observable.just(null);
firstSetup.set(false);
return Observable.create(
new Observable.OnSubscribe<Void>() {
@Override
public void call(final Subscriber<? super Void> subscriber) {
LoadBinaryResponseHandler responseHandler =
new LoadBinaryResponseHandler() {
@Override
public void onFailure() {
if (subscriber.isUnsubscribed()) return;
subscriber.onError(new IllegalStateException("failed to load FFmpeg binaries"));
}
@Override
public void onSuccess() {
if (subscriber.isUnsubscribed()) return;
subscriber.onNext(null);
subscriber.onCompleted();
}
};
try {
fFmpeg.loadBinary(responseHandler);
} catch (FFmpegNotSupportedException e) {
subscriber.onError(e);
}
}
});
}
