Databases
StackOverflow2013
Postsdbo
POBitmap rendering in Android
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POBitmap rendering in Android
    primarykey
    data
    text
    <p>I need help regarding rendering of Bitmaps and displaying them as a video in Android. Does someone know how to do it?</p> <p>I am also attaching the code with this for your understanding..</p> <pre><code>import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import android.app.Activity; import android.graphics.Bitmap; import android.hardware.Camera; import android.os.Bundle; public class Read extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); File file = new File("C:/Users/amrit.pati/Desktop/downloads/H324mVideoEncInput.yuv"); try { onPreviewFrame(getBytesFromFile(file)); } catch (IOException e) { e.printStackTrace(); } } public static byte[] getBytesFromFile(File file) throws IOException { InputStream is = new FileInputStream(file); long length = file.length(); if (length &gt; Integer.MAX_VALUE) { } byte[] bytes = new byte[(int)length]; int offset = 0; int numRead = 0; while (offset &lt; bytes.length &amp;&amp; (numRead=is.read(bytes, offset, bytes.length-offset)) &gt;= 0) { offset += numRead; } if (offset &lt; bytes.length) { throw new IOException("Could not completely read file "+file.getName()); } is.close(); return bytes; } public void onPreviewFrame(byte[] data) { int width = 480; int height = 360; final int[] rgb = decodeYUV420SP(data, width, height); Bitmap bmp = Bitmap.createBitmap(rgb, width, height,Bitmap.Config.ARGB_8888); } public int[] decodeYUV420SP( byte[] yuv420sp, int width, int height) { final int frameSize = width * height; int rgb[]=new int[width*height]; for (int j = 0, yp = 0; j &lt; height; j++) { int uvp = frameSize + (j &gt;&gt; 1) * width, u = 0, v = 0; for (int i = 0; i &lt; width; i++, yp++) { int y = (0xff &amp; ((int) yuv420sp[yp])) - 16; if (y &lt; 0) y = 0; if ((i &amp; 1) == 0) { v = (0xff &amp; yuv420sp[uvp++]) - 128; u = (0xff &amp; yuv420sp[uvp++]) - 128; } int y1192 = 1192 * y; int r = (y1192 + 1634 * v); int g = (y1192 - 833 * v - 400 * u); int b = (y1192 + 2066 * u); if (r &lt; 0) r = 0; else if (r &gt; 262143) r = 262143; if (g &lt; 0) g = 0; else if (g &gt; 262143) g = 262143; if (b &lt; 0) b = 0; else if (b &gt; 262143) b = 262143; rgb[yp] = 0xff000000 | ((r &lt;&lt; 6) &amp; 0xff0000) | ((g &gt;&gt; 2) &amp; 0xff00) | ((b &gt;&gt; 10) &amp; 0xff); } } return rgb; } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USTshepang
    1. USMayur Pandey
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COHi Amrit. Please be more specific. What do you mean by rendering bitmaps as a video?
      singulars
      1. POBitmap rendering in Android
      1. USShlublu
    2. COI mean to say, dat I have a native code which supplies me Video frames in form of byte arrays[] , I get these in Java layer convert them into rgb frames from YUV and den those RGB into Bitmaps, Now i need to display these as Bitmaps continuously as the same video as Byte Array[].
      singulars
      1. POBitmap rendering in Android
      1. USMayur Pandey
    3. COOk, I see now! I'm sorry, I can't tell you how to do that.
      singulars
      1. POBitmap rendering in Android
      1. USShlublu
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload