package com.ijoomer.media.player;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.preference.PreferenceManager;
import android.util.Log;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.xml.parsers.FactoryConfigurationError;
public class YouTubeUtility {
/**
* Retrieve the latest video in the specified playlist.
*
* @param pPlaylistId the id of the playlist for which to retrieve the latest video id
* @return the video id of the latest video, null if something goes wrong
* @throws IOException
* @throws ClientProtocolException
* @throws FactoryConfigurationError
*/
public static String queryLatestPlaylistVideo(PlaylistId pPlaylistId)
throws IOException, ClientProtocolException,
FactoryConfigurationError {
String lVideoId = null;
HttpClient lClient = new DefaultHttpClient();
HttpGet lGetMethod = new HttpGet(IjoomerMediaPlayer.YOUTUBE_PLAYLIST_ATOM_FEED_URL +
pPlaylistId.getId() + "?v=2&max-results=50&alt=json");
HttpResponse lResp = null;
lResp = lClient.execute(lGetMethod);
ByteArrayOutputStream lBOS = new ByteArrayOutputStream();
String lInfoStr = null;
JSONObject lYouTubeResponse = null;
try {
lResp.getEntity().writeTo(lBOS);
lInfoStr = lBOS.toString("UTF-8");
lYouTubeResponse = new JSONObject(lInfoStr);
JSONArray lEntryArr = lYouTubeResponse.getJSONObject("feed").getJSONArray("entry");
JSONArray lLinkArr = lEntryArr.getJSONObject(lEntryArr.length() - 1).getJSONArray("link");
int size = lLinkArr.length();
for (int i = 0; i < size; i++) {
JSONObject lLinkObj = lLinkArr.getJSONObject(i);
;
String lRelVal = lLinkObj.optString("rel", null);
if (lRelVal != null && lRelVal.equals("alternate")) {
String lUriStr = lLinkObj.optString("href", null);
Uri lVideoUri = Uri.parse(lUriStr);
lVideoId = lVideoUri.getQueryParameter("v");
break;
}
}
} catch (IllegalStateException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
} catch (IOException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
} catch (JSONException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
}
return lVideoId;
}
/**
* Calculate the YouTube URL to load the video. Includes retrieving a token that YouTube
* requires to play the video.
*
* @param pYouTubeFmtQuality quality of the video. 17=low, 18=high
* @param bFallback whether to fallback to lower quality in case the supplied quality is not available
* @param pYouTubeVideoId the id of the video
* @return the url string that will retrieve the video
* @throws IOException
* @throws ClientProtocolException
* @throws UnsupportedEncodingException
*/
public static String calculateYouTubeUrl(String pYouTubeFmtQuality, boolean pFallback,
String pYouTubeVideoId) throws IOException,
ClientProtocolException, UnsupportedEncodingException {
String lUriStr = null;
HttpClient lClient = new DefaultHttpClient();
HttpGet lGetMethod = new HttpGet(IjoomerMediaPlayer.YOUTUBE_VIDEO_INFORMATION_URL +
pYouTubeVideoId);
HttpResponse lResp = null;
lResp = lClient.execute(lGetMethod);
ByteArrayOutputStream lBOS = new ByteArrayOutputStream();
String lInfoStr = null;
lResp.getEntity().writeTo(lBOS);
lInfoStr = new String(lBOS.toString("UTF-8"));
String[] lArgs = lInfoStr.split("&");
Map<String, String> lArgMap = new HashMap<String, String>();
int len = lArgs.length;
for (int i = 0; i < len; i++) {
String[] lArgValStrArr = lArgs[i].split("=");
if (lArgValStrArr != null) {
if (lArgValStrArr.length >= 2) {
// lArgMap.put(lArgValStrArr[0], URLDecoder.decode(lArgValStrArr[1]));
lArgMap.put(lArgValStrArr[0], URLDecoder.decode(lArgValStrArr[1], "UTF-8"));
}
}
}
//Find out the URI string from the parameters
//Populate the list of formats for the video
// String lFmtList = URLDecoder.decode(lArgMap.get("fmt_list"));
String lFmtList = URLDecoder.decode(lArgMap.get("fmt_list"), "UTF-8");
ArrayList<Format> lFormats = new ArrayList<Format>();
if (null != lFmtList) {
String lFormatStrs[] = lFmtList.split(",");
for (String lFormatStr : lFormatStrs) {
Format lFormat = new Format(lFormatStr);
lFormats.add(lFormat);
}
}
//Populate the list of streams for the video
String lStreamList = lArgMap.get("url_encoded_fmt_stream_map");
if (null != lStreamList) {
String lStreamStrs[] = lStreamList.split(",");
ArrayList<VideoStream> lStreams = new ArrayList<VideoStream>();
for (String lStreamStr : lStreamStrs) {
VideoStream lStream = new VideoStream(lStreamStr);
lStreams.add(lStream);
}
//Search for the given format in the list of video formats
// if it is there, select the corresponding stream
// otherwise if fallback is requested, check for next lower format
int lFormatId = Integer.parseInt(pYouTubeFmtQuality);
Format lSearchFormat = new Format(lFormatId);
while (!lFormats.contains(lSearchFormat) && pFallback) {
int lOldId = lSearchFormat.getId();
int lNewId = getSupportedFallbackId(lOldId);
if (lOldId == lNewId) {
break;
}
lSearchFormat = new Format(lNewId);
}
int lIndex = lFormats.indexOf(lSearchFormat);
if (lIndex >= 0) {
VideoStream lSearchStream = lStreams.get(lIndex);
lUriStr = lSearchStream.getUrl();
}
}
//Return the URI string. It may be null if the format (or a fallback format if enabled)
// is not found in the list of formats for the video
return lUriStr;
}
public static boolean hasVideoBeenViewed(Context pCtxt, String pVideoId) {
SharedPreferences lPrefs = PreferenceManager.getDefaultSharedPreferences(pCtxt);
String lViewedVideoIds = lPrefs.getString("com.keyes.screebl.lastViewedVideoIds", null);
if (lViewedVideoIds == null) {
return false;
}
String[] lSplitIds = lViewedVideoIds.split(";");
if (lSplitIds == null || lSplitIds.length == 0) {
return false;
}
for (int i = 0; i < lSplitIds.length; i++) {
if (lSplitIds[i] != null && lSplitIds[i].equals(pVideoId)) {
return true;
}
}
return false;
}
public static void markVideoAsViewed(Context pCtxt, String pVideoId) {
SharedPreferences lPrefs = PreferenceManager.getDefaultSharedPreferences(pCtxt);
if (pVideoId == null) {
return;
}
String lViewedVideoIds = lPrefs.getString("com.keyes.screebl.lastViewedVideoIds", null);
if (lViewedVideoIds == null) {
lViewedVideoIds = "";
}
String[] lSplitIds = lViewedVideoIds.split(";");
if (lSplitIds == null) {
lSplitIds = new String[]{};
}
// make a hash table of the ids to deal with duplicates
Map<String, String> lMap = new HashMap<String, String>();
for (int i = 0; i < lSplitIds.length; i++) {
lMap.put(lSplitIds[i], lSplitIds[i]);
}
// recreate the viewed list
String lNewIdList = "";
Set<String> lKeys = lMap.keySet();
Iterator<String> lIter = lKeys.iterator();
while (lIter.hasNext()) {
String lId = lIter.next();
if (!lId.trim().equals("")) {
lNewIdList += lId + ";";
}
}
// add the new video id
lNewIdList += pVideoId + ";";
Editor lPrefEdit = lPrefs.edit();
lPrefEdit.putString("com.keyes.screebl.lastViewedVideoIds", lNewIdList);
lPrefEdit.commit();
}
public static int getSupportedFallbackId(int pOldId) {
final int lSupportedFormatIds[] = {13, //3GPP (MPEG-4 encoded) Low quality
17, //3GPP (MPEG-4 encoded) Medium quality
18, //MP4 (H.264 encoded) Normal quality
22, //MP4 (H.264 encoded) High quality
37 //MP4 (H.264 encoded) High quality
};
int lFallbackId = pOldId;
for (int i = lSupportedFormatIds.length - 1; i >= 0; i--) {
if (pOldId == lSupportedFormatIds[i] && i > 0) {
lFallbackId = lSupportedFormatIds[i - 1];
}
}
return lFallbackId;
}
}