// @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;
}
/**
* Tests if we can create an Buffer from a Java direct ByteBuffer, and then modify the data from
* the original Java byte buffer
*/
@Test
public void testCreationFromJavaDirectByteBufferAndModify() {
int numBytes = 10;
ByteBuffer directByteBuffer = ByteBuffer.allocateDirect(numBytes);
// assertTrue(directByteBuffer.isDirect());
for (int i = 0; i < numBytes; i++) {
directByteBuffer.put(i, (byte) i);
}
//
Buffer ibuf = Buffer.make(null, directByteBuffer, 0, numBytes);
assertNotNull(ibuf);
ByteBuffer outputDirectByteBuffer = ibuf.getByteBuffer(0, numBytes);
assertNotNull(numBytes);
assertEquals(numBytes, outputDirectByteBuffer.capacity());
for (int i = 0; i < numBytes; i++) {
assertEquals(i, outputDirectByteBuffer.get(i));
}
// Now modify the original data
for (int i = 0; i < numBytes; i++) {
directByteBuffer.put(i, (byte) (numBytes - i - 1));
}
// And make sure the copy we got out points to the same data
for (int i = 0; i < numBytes; i++) {
assertEquals(numBytes - i - 1, outputDirectByteBuffer.get(i));
}
}
/** 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]);
}
}
/**
* This method allocates one large Buffer and then repeatedly creates a java.nio.ByteBuffer to
* access them
*
* <p>If the system is not leaking, the garbage collector will ensure we don't run out of heap
* space. If we're leaking, bad things will occur.
*/
@Test
public void testNoLeakingMemoryOnDirectAccess() {
Buffer buf = Buffer.make(null, 1024 * 1024); // 1 MB
assertNotNull(buf);
for (int i = 0; i < 100000; i++) {
java.nio.ByteBuffer nativeBytes = buf.getByteBuffer(0, buf.getBufferSize());
// and we do nothing with the outBytes
assertEquals(nativeBytes.limit(), buf.getBufferSize());
nativeBytes = 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]);
}
}
@Test
public void testFloatGetPut() {
// free up any references from other tests
JNIMemoryManager.getMgr().flush();
float[] in = new float[] {0x38, 0x2C, 0x18, 0x7F};
float[] out = new float[in.length];
Buffer buf = Buffer.make(null, 1024);
buf.put(in, 0, 0, in.length);
buf.get(0, out, 0, in.length);
for (int i = 0; i < in.length; i++) assertEquals("mismatched bytes at " + i, in[i], out[i]);
buf.delete();
assertEquals(
"more objects around than expected", 0, JNIMemoryManager.getMgr().getNumPinnedObjects());
}
/**
* This test makes sure that Humble Video sets the byte order of the returned ByteBuffer to native
* order
*/
@Test
public void testByteOrderIsCorrect() {
Buffer buf = Buffer.make(null, 1024 * 1024); // 1 MB
assertNotNull(buf);
assertEquals(1, buf.getCurrentRefCount());
java.nio.ByteBuffer jbuf = buf.getByteBuffer(0, buf.getBufferSize());
assertNotNull(buf);
// Set 4 bytes that have a pattern that is reversible. On a big
// endian machine this is FOO and on a little endian it's BAR
jbuf.put(0, (byte) 0xFF);
jbuf.put(1, (byte) 0);
jbuf.put(2, (byte) 0xFF);
jbuf.put(3, (byte) 0);
int bigOrderVal = 0xFF00FF00;
int littleOrderVal = 0x00FF00FF;
int expectedVal;
if (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN) expectedVal = bigOrderVal;
else expectedVal = littleOrderVal;
java.nio.IntBuffer ibuf = jbuf.asIntBuffer();
assertNotNull(ibuf);
int val = ibuf.get(0);
assertEquals(expectedVal, val);
// now let's try changing byte orders
jbuf.order(ByteOrder.BIG_ENDIAN);
ibuf = jbuf.asIntBuffer();
assertNotNull(ibuf);
val = ibuf.get(0);
assertEquals(bigOrderVal, val);
jbuf.order(ByteOrder.LITTLE_ENDIAN);
ibuf = jbuf.asIntBuffer();
assertNotNull(ibuf);
val = ibuf.get(0);
assertEquals(littleOrderVal, val);
}
/** Tests if we can create an Buffer from a Java direct ByteBuffer. */
@Test
public void testCreationFromJavaDirectByteBuffer() {
int numBytes = 10;
ByteBuffer directByteBuffer = ByteBuffer.allocateDirect(numBytes);
// assertTrue(directByteBuffer.isDirect());
for (int i = 0; i < numBytes; i++) {
directByteBuffer.put(i, (byte) i);
}
//
Buffer ibuf = Buffer.make(null, directByteBuffer, 0, numBytes);
assertNotNull(ibuf);
ByteBuffer outputDirectByteBuffer = ibuf.getByteBuffer(0, numBytes);
assertNotNull(numBytes);
assertEquals(numBytes, outputDirectByteBuffer.capacity());
for (int i = 0; i < numBytes; i++) {
assertEquals(i, outputDirectByteBuffer.get(i));
}
}
/**
* This is a crazy test to make sure that a direct byte buffer will still be accessible even if
* the Buffer it came from goes out of scope and is collected.
*/
@Test(timeout = 60 * 1000)
public void testDirectByteBufferCanBeAccessedAfterBufferDisappears() {
Buffer buf = Buffer.make(null, 1024 * 1024); // 1 MB
assertNotNull(buf);
assertEquals(1, buf.getCurrentRefCount());
java.nio.ByteBuffer jbuf = buf.getByteBuffer(0, buf.getBufferSize());
assertNotNull(buf);
// now release the reference
buf.delete();
buf = null;
// in versions prior to 1.22, this would have caused a hard
// crash, but with 1.22 the getByteBuffer should have incremented
// the native ref count until this java ByteBuffer gets collected
// and we do a JNIMemoryManager gc.
jbuf.put(0, (byte) 0xFF);
}
@Test(expected = IllegalArgumentException.class)
public void testCreationFailsWithoutDirectByteBuffer() {
ByteBuffer directByteBuffer = ByteBuffer.allocate(10);
Buffer.make(null, directByteBuffer, 0, 10);
}
/** Test we can create an ibuffer of the right size. */
@Test
public void testCreation() {
Buffer buf = Buffer.make(null, 1024);
assertNotNull(buf);
assertTrue(buf.getBufferSize() >= 1024);
}
@Test
public void testGetInvalidArgs() {
Buffer buf = Buffer.make(null, 1);
byte[] in = new byte[] {0x38, 0x2C};
byte[] out = new byte[] {0x53, 0x7C};
try {
buf.put(in, 0, 0, 2);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.get(0, out, 0, 2);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.put(in, -1, 0, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.get(-1, out, 0, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.put(in, 0, -1, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.get(0, out, -1, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.put(in, 0, 1, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.get(0, out, 3, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.put(in, 3, 0, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
try {
buf.get(1, out, 0, 1);
fail("should fail on 2 bytes");
} catch (IndexOutOfBoundsException e) {
}
buf.put(in, 0, 0, 1);
buf.get(0, out, 0, 1);
assertEquals(in[0], out[0]);
assertNotSame(in[1], out[1]);
buf.delete();
}