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POConvert raw data to jpeg
 

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  1. POConvert raw data to jpeg
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    <p>I have found a way on how to convert raw data to jpeg but I have some issues with it. My app takes a picture on the current frame (onPreviewFrame) and has the raw data in a bytearray.</p> <p>First of all, the code I found is only supported by android API 7+ (Android 2.1+). I want this app to be able to use since API 4+ so android 1.6 users can also enjoy the app. Second thing is that I have found some code to convert raw2jpg, but it is copyright protected so I can't use it.</p> <p>I want to put it in a bytearray, so I won't use takePicture with it, remember.</p> <p>Does anyone have an idea or some code snippet that I can use on how to <em>convert</em> <strong>raw data</strong> taken on a current frame <strong>to</strong> make a <strong>jpeg image</strong> in a bytearray from Android version 1.6?</p> <p>EDIT: Here is the code:</p> <pre><code>private void raw2jpg(int[] rgb, byte[] raw, int width, int height) { final int frameSize = 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=0; if( yp &lt; raw.length) { y = (0xff &amp; ((int) raw[yp])) - 16; } // int y = (0xff &amp; ((int) raw[yp])) - 16; if (y &lt; 0) y = 0; if ((i &amp; 1) == 0) { if(uvp&lt;raw.length) { v = (0xff &amp; raw[uvp++]) - 128; u = (0xff &amp; raw[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); } } } </code></pre>
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    1. USVerhelst
    1. USVerhelst
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    1. COPost the "*code you found*".
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      1. USWroclai
    2. COSave yourself the trouble and go for api 7. Only 3.6% use anything below that and it will be even less soon.
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      1. USmibollma
    3. COOk, Posted the code, I will go for api 7 then. But still I cannot use the code as it is licensed under GNU GPL 2. This means I can use the code if the app is open source.
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