InitiateConversionService.java

public class InitiateConversionService extends IntentService {

    private String conversionUrl;
    private RedditSong song;

    public InitiateConversionService() {
        super("API");
    }

    @Override
    public void onHandleIntent(Intent intent) {
        if (intent != null) {
            conversionUrl = intent.getExtras().getString(getString(R.string.conversion_url_extra));
            song = intent.getParcelableExtra(getString(R.string.song_extra));

            RestAdapter restAdapter = new RestAdapter.Builder()
                    .setLogLevel(RestAdapter.LogLevel.FULL)
                    .setConverter(new CleanGsonConverter(new GsonBuilder().create()))
                    .setEndpoint(getString(R.string.converter_url_base))
                    .build();

            ConversionApi convertMedia = restAdapter.create(ConversionApi.class);
            ConversionModel conversionModel = convertMedia.getConversionProgress(conversionUrl);

            if (conversionModel.getError() != null) {

            } else {
                final String STATUS_FINISHED = "finished";
                boolean failed = false;
                boolean oldStyle = false;
                Uri statusUrl = Uri.parse(conversionModel.getStatusUrl());
                String id = statusUrl.getQueryParameter("id");
                if (id == null) {
                    id = statusUrl.getQueryParameter("videoid");
                    oldStyle = true;
                }
                String key = statusUrl.getQueryParameter("key");
                String statusUrlString = statusUrl.toString().replaceAll("/[&?].*", "");

                restAdapter = new RestAdapter.Builder()
                        .setLogLevel(RestAdapter.LogLevel.FULL)
                        .setEndpoint(statusUrlString)
                        .setConverter(new SimpleXMLConverter())
                        .build();

                ConversionApi conversionApi = restAdapter.create(ConversionApi.class);
                MediaModel mediaModel = null;
                try {
                    if (!oldStyle) {
                        mediaModel = conversionApi.getMedia(id, key);
                    } else {
                        mediaModel = conversionApi.getMediaOld(id, key);
                    }

                    int indexCount = 0;
                    String lastPercent = "0";

                    // Continue querying API until conversion is complete
                    while (!mediaModel.getStatus().getStep().equalsIgnoreCase(STATUS_FINISHED)) {
                        if (!oldStyle) {
                            mediaModel = conversionApi.getMedia(id, key);
                        } else {
                            mediaModel = conversionApi.getMediaOld(id, key);
                        }

                        if (mediaModel.getStatus().getPercent() != null && mediaModel.getStatus().getInfo() != null) {

                        }

                        if (mediaModel.getStatus().getPercent() != null) {
                            if (!lastPercent.equalsIgnoreCase(mediaModel.getStatus().getPercent())) {
                                lastPercent = mediaModel.getStatus().getPercent();

                                indexCount = 0;
                            } else {
                                if (indexCount > 100) {

                                    // TODO try again
                                    failed = true;

                                    break;
                                }

                                indexCount++;
                            }
                        }

                        Thread.sleep(1500);
                    }
                } catch (RetrofitError error) {

                    // TODO try again

                    failed = true;
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                if (!failed) {

                   // TODO add song to playerhater
                    song.setStreamUrl(Uri.parse(mediaModel.getDownloadUrl()));
                    song.setConverted(true);

                } else {

                    // TODO try again
                }
            }

        }
    }
}

The lines of interest are 103 and 104, that is when we have the URL and set the songs stream URL to it. Here would be where I'd send it back to enqueue or enqueue - depending on whichever is possible.