Downloading a 3gp video file from Internet

[Monica Marcus]

I want to download a video file (extension 3gp) from a certain http address. My application starts downloading, but it stops after downloading 9216 bytes. The file length is 1734741. I tried to increase the heap by including the following line in the Manifest file:

android:largeHeap="true"

It does not help. Here is the fragment of the java code that deals with downloading:

		protected String doInBackground(String... sUrl) {
	        byte[] data = new byte[1024];
	        double total = 0;
	        int count = 0;
	        FileOutputStream fos = null;
	        BufferedOutputStream output = null;
			try {
			Log.v("Here","HERE " + sUrl[0]);
			URL url= new URL(sUrl[0]);
			URLConnection connection = url.openConnection();
			connection.connect();
            // this will be useful so that you can show a typical 0-100% progress bar
            double fileLength = (Math.log10((double)connection.getContentLength()));
			Log.v("DoInBackground","file length = " + fileLength);
            if (fileLength <= 0)
            	fileLength = (long)(Math.log10(1734741.0));
            Log.v("DoInBackground","again file length = " + fileLength);
            // download the file
			BufferedInputStream input = new BufferedInputStream(connection.getInputStream());
        	Log.v("Input ","is " + input);
        	Log.v("Output ","is " + Environment.getExternalStorageDirectory().getPath());
        	File f = new File(Environment.getExternalStorageDirectory().getPath() + "/twokids.3gp");
        	f.setWritable(true,true);
            try {
                fos = new FileOutputStream(f);
                } catch (FileNotFoundException fnfe) {
                    fnfe.getStackTrace();
                } catch (SecurityException se) {
                    se.getStackTrace();
                }
                Log.v("Here","HERE 3");
                output = new BufferedOutputStream(fos); /////????????                                                                                                                                
                int i = (int)(Math.pow(10,(Math.log10(total) + 2 - fileLength)));
                
            while ((count = input.read(data)) != -1) {
            	Log.v("Count","= " + count);
                total += count;
                Log.v("Total " + total,"Count " + count);
                // publishing the progress....
                if ((int)(total * 100 / fileLength) == 0)
                	i = i + 1;
                Log.v("Progress","Increment" + i);
                /////////////task.publishProgress(i);
                prgs.setProgress(i);
                SystemClock.sleep(1000);
                output.write(data, 0, count);
            }
            output.flush();
            output.close();
            input.close();
        } catch (IOException ioe) {
        	ioe.getStackTrace();
        }
        	catch (Exception e) {
        	e.getStackTrace();
        }
			
        return null;
    }

The application uses a Progress Bar to show the progress of the download. Because the file length is quite big, I did logarithmic calculations. Also, I have several Log.v messages to see what's going on, I hope this does not hamper understanding of the code.
Anyway, my question refers only to the incomplete downloading of the 3gp file.

What can I do to download the video file? Thanks for the help I got so far with my previous questions!
It is a great forum!

[Ulf Dittmer]

How big is "quite big"?

[Monica Marcus]

The file length is 1734741 bytes.

[Monica Marcus]

I re-wrote the code so that it does only the downloading. Maybe this way one can give me an idea about what's wrong with it. I really need help. Can't get it to download the file

	protected String doInBackground(String... sUrl) {
		        byte[] data = new byte[1024];
		        int count = 0;
		        FileOutputStream fos = null;
		        BufferedOutputStream output = null;
				try {
				URL url= new URL(sUrl[0]);
				URLConnection connection = url.openConnection();
				connection.connect();
				Log.v("URL"," " + connection.getURL());
				Log.v("File ", "length = " + connection.getContentLength());
	            // download the file
				BufferedInputStream input = new BufferedInputStream(connection.getInputStream());
	        	File f = new File(Environment.getExternalStorageDirectory().getPath() + "/twokids.3gp");
	        	f.setWritable(true,true);
	            try {
	                fos = new FileOutputStream(f);
	                } catch (FileNotFoundException fnfe) {
	                    fnfe.getStackTrace();
	                } catch (SecurityException se) {
	                    se.getStackTrace();
	                }

	                output = new BufferedOutputStream(fos);                                                                                                                        
	                
	            while ((count = input.read(data)) != -1) {
	            	Log.v("Count="," " + count);
	                output.write(data, 0, count);
	            }
	            output.flush();
	            output.close();
	            input.close();
	            Log.v("Download","Finished");
				} catch (IndexOutOfBoundsException iobe) {
	        	iobe.getStackTrace();
				} catch (IOException ioe) {
	        	ioe.getStackTrace();
				} catch (NullPointerException npe) {
	        	npe.getStackTrace();
				}
	        	catch (Exception e) {
	        	e.getStackTrace();
	        	}
				
	        return null;
	    }

And strangely enough, sometimes the method connection.getContentLength() returns -1

[Monica Marcus]

Well, I found the opportunity to try the code on a real device and it works. The emulator is not that reliable... this is my conclusion.