/** Test we can create an Buffer, then modify the direct bytes in native code. */
@Test
public void testCanDirectlyModifyNativeBytes() {
byte buffer[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
Buffer buf = Buffer.make(null, buffer, 0, buffer.length);
assertNotNull(buf);
assertEquals(buf.getBufferSize(), buffer.length);
// this give us the native bytes
java.nio.ByteBuffer nativeBytes = buf.getByteBuffer(0, buffer.length);
assertNotNull(nativeBytes);
for (int i = 0; i < buffer.length; i++) {
nativeBytes.put(i, (byte) (9 - buffer[i])); // reverse the order of the integers
}
// we can release it. no "update" method should be required. It should
// have modified the underlying C++ bytes.
nativeBytes = null;
// now, get a copy of the bytes in the Buffer and make sure
// the order of bytes was reversed.
byte outBuffer[] = buf.getByteArray(0, buffer.length);
assertNotNull(outBuffer);
assertEquals(outBuffer.length, buffer.length);
assertNotSame(buf, outBuffer);
for (int i = 0; i < buffer.length; i++) {
assertEquals(9 - buffer[i], outBuffer[i]);
}
}
// @Test
public void playTest() throws Exception {
logger.info("start playTest");
SourceDataLine audioLine = null;
MediaAudio samples = beepSamples();
logger.info("sample is ready");
AudioFormat format =
new AudioFormat(
(float) samples.getSampleRate(),
(int) samples.getBytesPerSample() * 8,
samples.getChannels(),
true,
false);
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
audioLine = (SourceDataLine) AudioSystem.getLine(info);
audioLine.open(format);
logger.info("beepstart");
audioLine.start();
Buffer buffer = samples.getData(0);
audioLine.write(
buffer.getByteArray(0, samples.getDataPlaneSize(0)), 0, samples.getDataPlaneSize(0));
audioLine.drain();
logger.info("beepend");
audioLine.close();
audioLine = null;
}
/**
* Test that we can create a Buffer from a Java byte[] array, and that we can copy the same data
* out of an Buffer (via copy).
*/
@Test
public void testCreateFromBytes() {
byte buffer[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
Buffer buf = Buffer.make(null, buffer, 0, buffer.length);
assertNotNull(buf);
assertEquals(buf.getBufferSize(), buffer.length);
byte outBuffer[] = buf.getByteArray(0, buffer.length);
assertNotNull(outBuffer);
assertEquals(outBuffer.length, buffer.length);
assertNotSame(buf, outBuffer);
for (int i = 0; i < buffer.length; i++) {
assertEquals(buffer[i], outBuffer[i]);
}
}