WIP con streaming... aun no va

Imanol-Mikel Barba Sabariego
1 parent 30f316ce
Showing 7 changed files with 236 additions and 100 deletions
res/layout/main_activity.xml
res/values/strings.xml
src/com/upc/pbe/upcnews/Directoris.java
src/com/upc/pbe/upcnews/HLS.java
src/com/upc/pbe/upcnews/MainActivity.java
src/com/upc/pbe/upcnews/ParentList.java
src/com/upc/pbe/upcnews/VideoActivity.java
@@ -11,16 +11,14 @@
     <ImageButton
         android:id="@+id/button"
-        android:layout_width="256dp"
-        android:layout_height="256dp"
+        android:layout_width="192dip"
+        android:layout_height="192dip"
         android:layout_centerHorizontal="true"
         android:layout_centerVertical="true"
         android:background="@drawable/startbuttontoggle"
         android:contentDescription="@string/startbuttondescription"
         android:focusable="false"
         android:focusableInTouchMode="false"
-        android:maxHeight="@dimen/lesize"
-        android:maxWidth="@dimen/lesize"
         android:scaleType="fitCenter" />
     <TextView
@@ -29,5 +29,6 @@
     <string name="alertVitamioNotInstalled">Alerta! Llibreries de Vitamio no instal·lades!</string>
     <string name="alertLogoDescription">Alerta!</string>
     <string name="itemType">Item type</string>
+    <string name="buffering_text">Buffering...</string>
 </resources>
 \ No newline at end of file
@@ -6,8 +6,6 @@ import java.util.ArrayList;
 import java.util.concurrent.ExecutionException;
 import android.app.Activity;
-import android.app.DownloadManager;
-import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
@@ -61,12 +59,10 @@ public class Directoris extends Activity implements OnItemClickListener
 		}
 		catch (InterruptedException e)
 		{
-			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 		catch (ExecutionException e)
 		{
-			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 		catch (IOException e)
@@ -106,8 +102,7 @@ public class Directoris extends Activity implements OnItemClickListener
 						ArrayList<ParentList> m3u8parsed = p.parseFile(playlist);
 						Log.d(TAG, "Parsing completat");
 						//Creem un gestor HLS
-						DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
-						HLS h = new HLS(m3u8parsed,((UpcApp)getApplication()).getLocalPath(), manager);
+						HLS h = new HLS(m3u8parsed,((UpcApp)getApplication()).getLocalPath());
 						((UpcApp)getApplication()).setHLS(h);
 						//Iniciem la reproduccio
 						Intent mIntent = new Intent(this, VideoActivity.class);
@@ -142,12 +137,10 @@ public class Directoris extends Activity implements OnItemClickListener
 				}
 				catch (InterruptedException e1)
 				{
-					// TODO Auto-generated catch block
 					e1.printStackTrace();
 				}
 				catch (ExecutionException e1)
 				{
-					// TODO Auto-generated catch block
 					e1.printStackTrace();
 				}
 			}
 package com.upc.pbe.upcnews;
+import io.vov.vitamio.widget.VideoView;
+
+import java.io.BufferedInputStream;
 import java.io.File;
+import java.io.FileOutputStream;
 import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.util.ArrayList;
-import android.app.DownloadManager;
-import android.app.DownloadManager.Request;
+import android.app.AlertDialog;
 import android.content.Context;
 import android.net.TrafficStats;
-import android.net.Uri;
+import android.os.AsyncTask;
 import android.util.Log;
+import android.view.LayoutInflater;
+import android.widget.Toast;
 //Gestor del protocol HTTP Live Streaming
 public class HLS
 {
-
+	private static long TRIGGER_PLAY;
 	private static final String TAG = "HLS";
 	private ArrayList<ParentList> videos;
 	private ArrayList<Segment> segments;
@@ -24,11 +31,15 @@ public class HLS
 	private int currentSegment;
 	private boolean endReached;
 	private String localFolder;
-	private DownloadManager dm;
 	private BandwidthMeasurer bm;
+	private boolean started;
+	private boolean ended;
+	private long totalDownloaded;
+	private VideoView video;
+	private VideoActivity vActivity;
-	public HLS(ArrayList<ParentList> parsed, String localFolder, DownloadManager manager)
+	public HLS(ArrayList<ParentList> parsed, String localFolder)
 	{
 		// Neteja el directori i inicialitza les variables
 		File dir = new File(localFolder);
@@ -45,8 +56,47 @@ public class HLS
 		endReached = false;
 		this.localFolder = localFolder;
 		bm = new BandwidthMeasurer();
+		started = ended = false;
+		totalDownloaded = 0;
 	}
+	public void setBufferSize()
+	{
+		/*
+		 * Supondremos todos los segmentos de misma duración
+		 */
+		 if(qualities.get(currentQuality).getQuality() == -1)
+		 {
+			 /*
+			  * No nos dicen la calidad, la pondremos al conocer la longitud del primer segmento
+			  */
+			 TRIGGER_PLAY = -1;
+		 }
+		 else
+		 {
+			 //15 segundos de cancha para empezar
+			 TRIGGER_PLAY = (long) (15 * qualities.get(currentQuality).getQuality()/8e3);
+		 }
+		
+	}
+	
+	public void quitPlayer(VideoActivity v)
+	{
+		video.stopPlayback();
+		v.finish();
+		return;
+	}
+	
+	public void setVideoViewer(VideoView v)
+	{
+		video = v;
+	}
+	
+	public void setVideoActivity(VideoActivity v)
+	{
+		vActivity = v;
+	}
+	
 	public void loadVideo()
 	{
 		// Carrega la qualitat i, a partir d'aixo, el seguent segment
@@ -56,6 +106,7 @@ public class HLS
 		{
 			endReached = true;
 		}
+		setBufferSize();
 	}
 	public String next() throws IOException
@@ -71,59 +122,47 @@ public class HLS
 		}
 		Segment seg = segments.get(currentSegment++);
 		String path = localFolder+seg.getURL().substring(seg.getURL().lastIndexOf("/") + 1, seg.getURL().length());
-		if(!new File(path).exists()) //Para qué bajarlo dos veces?
+		Log.d(TAG, seg.getName() + " " + seg.getURL());
+		return path;
+	}
+	
+	public void updateQuality(long bps)
+	{
+		if ((bps <= qualities.get(currentQuality).getQuality()) && (bps != -1))
 		{
-			Log.d(TAG, seg.getName() + " " + seg.getURL());
-			long startTime = System.currentTimeMillis();
-			long segmentBytes = TrafficStats.getTotalRxBytes();
-			descarregarguardar(seg.getURL(), localFolder);
-			double bps = bm.Measure(segmentBytes, startTime);
-			Log.d(TAG, "Velocitat actual (KB/s): " + (bps / 8e3));
-			if ((bps <= qualities.get(currentQuality).getQuality()) && (bps != -1))
+			int newQuality;
+			for(newQuality = 0; newQuality < qualities.size(); newQuality++)
 			{
-				int newQuality;
-				for(newQuality = 0; newQuality < qualities.size(); newQuality++)
-				{
-					if(bps >= qualities.get(newQuality).getQuality())
-					{
-						break;
-					}
-				}
-				if(currentQuality != newQuality)
+				if(bps >= qualities.get(newQuality).getQuality())
 				{
-					currentQuality = newQuality;
-					currentVideo--; //Corregimos el del loadVideo()
-					loadVideo(); //Cargamos la nueva calidad
+					break;
 				}
 			}
-			else if((bps > qualities.get(currentQuality).getQuality()) && (bps != -1))
+			if(currentQuality != newQuality)
 			{
-				int newQuality;
-				for(newQuality = qualities.size()-1; newQuality > 0; newQuality--)
-				{
-					if(bps <= qualities.get(newQuality).getQuality())
-					{
-						newQuality--;
-						break;
-					}
-				}
-				if(currentQuality != newQuality)
+				currentQuality = newQuality;
+				currentVideo--; //Corregimos el del loadVideo()
+				loadVideo(); //Cargamos la nueva calidad
+			}
+		}
+		else if((bps > qualities.get(currentQuality).getQuality()) && (bps != -1))
+		{
+			int newQuality;
+			for(newQuality = qualities.size()-1; newQuality > 0; newQuality--)
+			{
+				if(bps <= qualities.get(newQuality).getQuality())
 				{
-					currentQuality = newQuality;
-					currentVideo--; //Corregimos el del loadVideo()
-					loadVideo(); //Cargamos la nueva calidad
+					newQuality--;
+					break;
 				}
 			}
+			if(currentQuality != newQuality)
+			{
+				currentQuality = newQuality;
+				currentVideo--; //Corregimos el del loadVideo()
+				loadVideo(); //Cargamos la nueva calidad
+			}
 		}
-		return path;
-	}
-
-	public void descarregarguardar(String url, String path)
-	{
-		Request req = new Request(Uri.parse(url));
-		req.setVisibleInDownloadsUi(false);
-		req.setDestinationUri(Uri.parse("file://"+path + url.substring(url.lastIndexOf("/")+1, url.length())));
-		dm.enqueue(req);
 	}
 	public String previous() throws IOException
@@ -136,9 +175,127 @@ public class HLS
 		seg = segments.get(currentSegment++);
 		return localFolder + seg.getURL().substring(seg.getURL().lastIndexOf("/") + 1, seg.getURL().length());
 	}
-
-	public void startDownloadManager(Context ctx)
+	
+	public boolean hasEnded()
+	{
+		return ended;
+	}
+	
+	public void buffer()
+	{
+		video.stopPlayback();
+		started = false;
+	}
+	
+	public void downloadSegment(String url)
 	{
-		dm = (DownloadManager) ctx.getSystemService("download");
+		DescarregaSegment ds = new DescarregaSegment(vActivity);
+		try
+		{
+			ds.execute(new URL(url));
+		}
+		catch (MalformedURLException e)
+		{
+			e.printStackTrace();
+		}
+	}
+	
+	public class DescarregaSegment extends AsyncTask<URL, Integer, Long>
+	{
+		final static String TAG = "DescarregaSegment";
+		private Context ctx;
+		private long bps;
+		AlertDialog alertDialog;
+		
+		public DescarregaSegment(Context c)
+		{
+			ctx = c;
+			bps = 0;
+			AlertDialog.Builder builder = new AlertDialog.Builder(vActivity);
+			LayoutInflater inflater = vActivity.getLayoutInflater();
+			builder.setView(inflater.inflate(R.layout.buffering_dialog,null));
+			alertDialog = builder.create();
+		}
+		
+		
+		@Override
+		protected Long doInBackground(URL... urls)
+		{
+			if(!started)
+			{
+				alertDialog.show();
+			}
+			Long downloaded = Long.valueOf(0);
+			long startTime = System.currentTimeMillis();
+			long segmentBytes = TrafficStats.getTotalRxBytes();
+			Log.d(TAG, "Velocitat actual (KB/s): " + (bps / 8e3));
+			// Iniciem la connexi� i creem els Streams
+			try 
+			{
+				FileOutputStream out = new FileOutputStream(localFolder + "video.ts");
+				BufferedInputStream in = new BufferedInputStream(urls[0].openStream());
+				Log.d(TAG, "\nDescarregant: \n");
+				Log.d(TAG, ">> URL: " + urls[0]);
+				byte data[] = new byte[102400];
+	            int count;
+	            while ((count = in.read(data)) != -1) 
+	            {
+	                downloaded += count;
+	                out.write(data, 0, count);
+	            }
+				out.flush();
+				out.close();
+				in.close();
+				bps = (long) bm.Measure(segmentBytes, startTime);
+				Log.d(TAG, "Descarrega finalitzada");
+			}
+			catch(IOException e)
+			{
+				this.cancel(true);
+				Toast.makeText(ctx, e.getMessage(), Toast.LENGTH_LONG).show();
+				return Long.valueOf(-1);
+			}
+			return downloaded;
+		 }
+		 protected void onPostExecute(Long result) 
+		 {
+			 totalDownloaded += result;
+			 if(ended = true)
+			 {
+					quitPlayer((VideoActivity) ctx);
+			 }
+			 if(TRIGGER_PLAY == -1)
+			 {
+				 long Bps = (long) (result/segments.get(currentSegment).getDuration());
+				 TRIGGER_PLAY = 15*Bps/1000;
+			 }
+			 if(!started && totalDownloaded >= TRIGGER_PLAY)
+			 {
+				 alertDialog.dismiss();
+				 started = true;
+				 video.start();
+				 video.requestFocus();
+			 }
+			 String newSegment = null;
+			 try
+			 {
+				 updateQuality((long) bps);
+				 newSegment = next();
+			 }
+			 catch(IOException e) 
+			 {
+					Toast.makeText(ctx, "No s'ha trobat el segment", Toast.LENGTH_LONG).show();
+					quitPlayer((VideoActivity) ctx);
+			 }
+			 if(newSegment.equals(null))
+			 {
+				 ended = true;
+			 }
+			 else
+			 {
+				downloadSegment(newSegment); 
+			 }
+			 return;
+	     }
 	}
 }
 \ No newline at end of file
@@ -21,7 +21,8 @@ import android.widget.TextView;
 import android.widget.Toast;
 //Finestra incial i activity principal del programa
-public class MainActivity extends Activity implements OnClickListener {
+public class MainActivity extends Activity implements OnClickListener
+{
 	private final static String TAG = "Main";
 	private static String html;
@@ -78,19 +79,18 @@ public class MainActivity extends Activity implements OnClickListener {
 		}
 		catch (InterruptedException e)
 		{
-			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 		catch (ExecutionException e)
 		{
-			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 		catch (MalformedURLException e)
 		{
 			Toast.makeText(this, "URL Malformada", Toast.LENGTH_LONG).show();
 		}
-		if(!html.equals("")) {
+		if(!html.equals("")) 
+		{
 			((UpcApp) getApplication()).setDesc(html);
 			startActivity(new Intent(this, Directoris.class));
 		}
@@ -5,7 +5,6 @@ import java.util.ArrayList;
 public class ParentList
 {
 	private String ID;
-	private int currentQuality;
 	private String Type, Name;
 	private boolean Default; //Estos 3 ultimos son para los ext-x-media, los ext-x-stream lo IGNORAN
 	private ArrayList<Video> lists; //per cada qualitat
@@ -14,7 +13,6 @@ public class ParentList
 	public ParentList(String ID)
 	{
 		this.ID = ID;
-		currentQuality = 0;
 		Type = "";
 		Name = "";
 		Default = false;
@@ -30,15 +28,7 @@ public class ParentList
 	{
 		ID = id;
 	}
-	
-	public int getCurrentQuality()
-	{
-		return currentQuality;
-	}
-	public void setCurrentQuality(int q)
-	{
-		currentQuality = q;
-	}
+
 	public boolean getDefault()
 	{
@@ -19,6 +19,7 @@ public class VideoActivity extends Activity {
 	private final static String TAG = "VideoActivity";
 	private VideoView video;
 	private HLS h = null;
+	private String filePath;
 	@Override
@@ -34,20 +35,25 @@ public class VideoActivity extends Activity {
 		}
 		setContentView(R.layout.activity_video);
+		filePath = ((UpcApp)getApplication()).getLocalPath() + "video.ts";
 		video = (VideoView) findViewById(R.id.VideoView1);
 		//Creem un listener associat al fi de l'activitat (el fi de cada ts)
 		io.vov.vitamio.widget.MediaController mc = new MediaController(this);
 		video.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
 		    public void onCompletion(MediaPlayer mp) {
 		    	//Al acabar cada ts, reproduit el seguent
-		        playNext();
+		    	if(h.hasEnded())
+		    	{
+		    		finish();
+		    		return;
+		    	}
+		    	h.buffer();
 		    } 
 		});
 		mc.setOnFFLeftListener(new View.OnClickListener() {
 			public void onClick(View v) {
 				Log.d(TAG, "FFLEFT");
-				video.stopPlayback();
-				playPrevious();
+				video.seekTo(-100);
 			}
 		});
 		mc.setOnFFRightListener(new View.OnClickListener() {
@@ -60,39 +66,29 @@ public class VideoActivity extends Activity {
 		video.setVideoQuality(MediaPlayer.VIDEOQUALITY_HIGH);
 		//Creem un gestor HLS, carreguem el video i iniciem la reproduccio
 		h = ((UpcApp)getApplication()).getHLS();
-		h.startDownloadManager(this);
+		h.setVideoViewer(video);
+		h.setVideoActivity(this);
 		h.loadVideo();
 		video.stopPlayback();
 		video.setMediaController(mc);
-		playNext();
-	}
-	
-	public void play(String url) {
-		if(url == null) {
-			super.finish();
-			return;
-		}
-		Log.d(TAG,"A reproduir: " + url);
-		video.setVideoPath("file://" + url);
-		video.start();
-		video.requestFocus();
+		video.setVideoPath("file://" + filePath);
+		h.downloadSegment(playNext());
 	}
-	public void playNext() {
+	public String playNext() {
 		try {
-			String next = h.next();
-			play(next);
+			return h.next();
 		}
 		catch(IOException e) {
 			Toast.makeText(this, "No s'ha trobat el segment", Toast.LENGTH_LONG).show();
 			super.finish();
-			return;
+			return "";
 		}
 	}
 	public void playPrevious() {
 		try {
 			String prev = h.previous();
-			play(prev);
+			//play(prev);
 		}
 		catch(IOException e) {
 			Toast.makeText(this, "No s'ha trobat el segment", Toast.LENGTH_LONG).show();
@@ -107,4 +103,5 @@ public class VideoActivity extends Activity {
 			video.setVideoLayout(VideoView.VIDEO_LAYOUT_SCALE, 0);
 		super.onConfigurationChanged(newConfig);
 	}
+	
 }
 \ No newline at end of file