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package org.mobicents.media.server.impl.dsp.audio.g711.alaw;
import junit.framework.TestCase;
import org.mobicents.media.Buffer;
/**
*
* @author Oleg Kulikov
*/
public class CodecTest extends TestCase {
private static short aLawDecompressTable[] = new short[]{
-5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736,
-7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784,
-2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368,
-3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392,
-22016, -20992, -24064, -23040, -17920, -16896, -19968, -18944,
-30208, -29184, -32256, -31232, -26112, -25088, -28160, -27136,
-11008, -10496, -12032, -11520, -8960, -8448, -9984, -9472,
-15104, -14592, -16128, -15616, -13056, -12544, -14080, -13568,
-344, -328, -376, -360, -280, -264, -312, -296,
-472, -456, -504, -488, -408, -392, -440, -424,
-88, -72, -120, -104, -24, -8, -56, -40,
-216, -200, -248, -232, -152, -136, -184, -168,
-1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184,
-1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696,
-688, -656, -752, -720, -560, -528, -624, -592,
-944, -912, -1008, -976, -816, -784, -880, -848,
5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736,
7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784,
2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368,
3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392,
22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944,
30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136,
11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472,
15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568,
344, 328, 376, 360, 280, 264, 312, 296,
472, 456, 504, 488, 408, 392, 440, 424,
88, 72, 120, 104, 24, 8, 56, 40,
216, 200, 248, 232, 152, 136, 184, 168,
1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184,
1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696,
688, 656, 752, 720, 560, 528, 624, 592,
944, 912, 1008, 976, 816, 784, 880, 848
};
private byte[] src = new byte[512];
public CodecTest(String testName) {
super(testName);
}
@Override
protected void setUp() throws Exception {
super.setUp();
int k = 0;
for (int i = 0; i < 256; i++) {
short s = aLawDecompressTable[i];
src[k++] = (byte)(s);
src[k++] = (byte)(s >> 8);
}
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
}
/**
* Test of process method, of class Decoder.
*/
public void testCodec() {
Buffer buffer = new Buffer();
buffer.setData(src);
buffer.setOffset(0);
buffer.setLength(src.length);
org.mobicents.media.server.spi.dsp.Codec compressor = new Encoder();
compressor.process(buffer);
org.mobicents.media.server.spi.dsp.Codec decompressor = new Decoder();
decompressor.process(buffer);
byte[] res = (byte[]) buffer.getData();
for (int i = 0; i < src.length; i++) {
if (src[i] != res[i]) {
fail("mismatch found at " + i);
}
}
}
}