Examples of Bitstream

bdsup2sub.tools.BitStream
Simple helper class to read bitwise from a buffer.
com.peterhi.runtime.BitStream
edu.byu.ece.rapidSmith.bitstreamTools.bitstream.Bitstream
Represents a Xilinx bitstream. It contains a BitstreamHeader object and a PacketList object that contains all of the bitstream packets.
javazoom.jl.decoder.Bitstream
The Bistream class is responsible for parsing an MPEG audio bitstream. REVIEW: much of the parsing currently occurs in the various decoders. This should be moved into this class and associated inner classes.
javazoom.jlme.decoder.BitStream
net.javazoom.jl.decoder.Bitstream
The Bistream class is responsible for parsing an MPEG audio bitstream. REVIEW: much of the parsing currently occurs in the various decoders. This should be moved into this class and associated inner classes.
net.sourceforge.jaad.aac.syntax.BitStream
org.dspace.content.Bitstream
Class representing bitstreams stored in the DSpace system.
When modifying the bitstream metadata, changes are not reflected in the database until update is called. Note that you cannot alter the contents of a bitstream; you need to create a new bitstream. @author Robert Tansley @version $Revision: 4657 $
org.dspace.rest.common.Bitstream
Created with IntelliJ IDEA. User: peterdietz Date: 9/21/13 Time: 12:54 AM To change this template use File | Settings | File Templates.
org.red5.app.sip.codecs.ilbc.bitstream
@author Jean Lorchat

Examples of bdsup2sub.tools.BitStream

            } catch (ArrayIndexOutOfBoundsException ex) {
                warnings++;
            }
            // decode even lines
            try {
                BitStream even = new BitStream(evenBuf);
                decodeLine(bm.getInternalBuffer(), 0, w, w*(h/2+(h&1)), even);
            } catch (ArrayIndexOutOfBoundsException ex) {
                warnings++;
            }
            // decode odd lines
            try {
                BitStream odd  = new BitStream(oddBuf);
                decodeLine(bm.getInternalBuffer(), w, w, (h/2)*w, odd);
            } catch (ArrayIndexOutOfBoundsException ex) {
                warnings++;
            }

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Examples of com.peterhi.runtime.BitStream

  
  @Test
  public void testReadBit() throws Exception {
    {
      byte[] data = new byte[] { (byte )170, (byte )85 };
      BitStream bs = new BitStream(data, 0, Byte.SIZE * data.length);
      
      for (int i = 0; i < Byte.SIZE; i++) {
        int bit = bs.readBit();
        
        if (i % 2 == 0) {
          assertEquals(0, bit);
        } else {
          assertEquals(1, bit);
        }
      }
      
      for (int i = 0; i < Byte.SIZE; i++) {
        int bit = bs.readBit();
        
        if (i % 2 == 0) {
          assertEquals(1, bit);
        } else {
          assertEquals(0, bit);
        }
      }
      
      assertEquals(0, bs.available());
      assertEquals(2, bs.bytes());
    }
    
    {
      BitStream bs = new BitStream(32);
      assertEquals(0, bs.available());
      assertEquals(32, bs.bytes());
      assertEquals(-1, bs.readBit());
    }
  }

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Examples of com.peterhi.runtime.BitStream

  }
  
  @Test
  public void testWriteBit() throws Exception {
    {
      BitStream bs = new BitStream(1);
      
      for (int i = 0; i < 10; i++) {
        bs.writeBit(i % 2);
      }
      
      assertEquals(10, bs.available());
      assertEquals(129, bs.bytes());
      
      for (int i = 0; i < 10; i++) {
        assertEquals(i % 2, bs.readBit());
      }
      
      assertEquals(0, bs.available());
      assertEquals(129, bs.bytes());
      assertEquals(-1, bs.readBit());
    }
  }

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Examples of com.peterhi.runtime.BitStream

          bytesWritten += Long.SIZE / 8;
        }
      }
      
      byte[] data = baos.toByteArray();
      BitStream bs = new BitStream(data, 0, Byte.SIZE * data.length);
      
      for (Map.Entry<BigInteger, Integer> entry : numbers.entrySet()) {
        BigInteger number = entry.getKey();
        Integer size = entry.getValue();
        
        if (size == Byte.SIZE) {
          assertEquals(number.byteValue(), bs.readBits(size, true).byteValue());
        } else if (size == Short.SIZE) {
          assertEquals(number.shortValue(), bs.readBits(size, true).shortValue());
        } else if (size == Integer.SIZE) {
          assertEquals(number.intValue(), bs.readBits(size, true).intValue());
        } else if (size == Long.SIZE) {
          assertEquals(number.longValue(), bs.readBits(size, true).longValue());
        }
      }
      
      assertEquals(0, bs.available());
      assertEquals(bytesWritten, bs.bytes());
    }
    
    try {
      BitStream bs = new BitStream(32);
      bs.readBits(-1, true);
      fail();
    } catch (IllegalArgumentException ex) {
    }
    
    try {
      BitStream bs = new BitStream(32);
      bs.readBits(1, true);
      fail();
    } catch (EOFException ex) {
    }
    
    try {
      BitStream bs = new BitStream(32);
      bs.writeBit(1);
      bs.readBits(2, true);
      fail();
    } catch (InsufficientBufferException ex) {
    }
  }

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Examples of com.peterhi.runtime.BitStream

  }
  
  @Test
  public void testWriteBits() throws Exception {
    {
      BitStream bs = new BitStream(60);
      
      for (Map.Entry<BigInteger, Integer> entry : numbers.entrySet()) {
        BigInteger number = entry.getKey();
        Integer size = entry.getValue();


        if (size == Byte.SIZE || size == Short.SIZE || size == Integer.SIZE || size == Long.SIZE) {
          bs.writeBits(number, size);
        }
      }


      assertEquals(Byte.SIZE * 60, bs.available());
      assertEquals(60, bs.bytes());
      
      byte[] data = bs.toByteArray();
      DataInputStream dis = new DataInputStream(new ByteArrayInputStream(data));
      
      for (Map.Entry<BigInteger, Integer> entry : numbers.entrySet()) {
        BigInteger number = entry.getKey();
        Integer size = entry.getValue();
        
        if (size == Byte.SIZE) {
          assertEquals(number.byteValue(), dis.readByte());
        } else if (size == Short.SIZE) {
          assertEquals(number.shortValue(), dis.readShort());
        } else if (size == Integer.SIZE) {
          assertEquals(number.intValue(), dis.readInt());
        } else if (size == Long.SIZE) {
          assertEquals(number.longValue(), dis.readLong());
        }
      }
    }
    
    try {
      BitStream bs = new BitStream(32);
      bs.writeBits(null, 0);
      fail();
    } catch (NullPointerException ex) {
    }
    
    try {
      BitStream bs = new BitStream(32);
      bs.writeBits(BigInteger.ONE, -1);
      fail();
    } catch (IllegalArgumentException ex) {
    }
  }

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Examples of com.peterhi.runtime.BitStream

  }
  
  @Test
  public void testReadAndWriteArbitraryBits() throws Exception {
    // ceil(1095 * 4 / 8)
    BitStream bsw = new BitStream(548);
    int bitsWritten = 0;
    
    for (Map.Entry<BigInteger, Integer> entry : numbers.entrySet()) {
      BigInteger number = entry.getKey();
      Integer size = entry.getValue();
      bsw.writeBits(number, size);
      bitsWritten += size;
    }
    
    assertEquals(bitsWritten, bsw.available());
    assertEquals(548, bsw.bytes());
    
    byte[] data = bsw.toByteArray();
    BitStream bsr = new BitStream(data, 0, bitsWritten);
    
    for (Map.Entry<BigInteger, Integer> entry : numbers.entrySet()) {
      BigInteger number = entry.getKey();
      Integer size = entry.getValue();
      
      BigInteger value = bsr.readBits(size, true);
      BigInteger mask = BigInteger.ZERO;
      
      for (int i = 0; i < size; i++) {
        mask = mask.or(BigInteger.ONE.shiftLeft(i));
      }
      
      assertEquals(number.and(mask), value.and(mask));
    }
    
    assertEquals(0, bsr.available());
    assertEquals(548, bsr.bytes());
  }

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Examples of com.peterhi.runtime.BitStream

    assertEquals(548, bsr.bytes());
  }
  
  @Test
  public void testReadMarks() throws Exception {
    BitStream bs = new BitStream(new byte[] { 1, 2 }, 0, Byte.SIZE * 2);
    assertEquals(1, bs.readBits(8, true).byteValue());
    bs.setReadMark();
    assertEquals(2, bs.readBits(8, true).byteValue());
    assertEquals(-1, bs.readBit());
    bs.goToReadMark();
    assertEquals(2, bs.readBits(8, true).byteValue());
    assertEquals(-1, bs.readBit());
    bs.clearReadMark();
    assertEquals(-1, bs.readBit());
    assertEquals(0, bs.available());
    assertEquals(2, bs.bytes());
    bs.goToReadFromBeginning();
    assertEquals(1, bs.readBits(8, true).byteValue());
    assertEquals(2, bs.readBits(8, true).byteValue());
  }

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Examples of com.peterhi.runtime.BitStream

    assertEquals(2, bs.readBits(8, true).byteValue());
  }
  
  @Test
  public void testWriteMarks() throws Exception {
    BitStream bs = new BitStream(2);
    bs.writeBits(BigInteger.ONE, 8);
    bs.setWriteMark();
    bs.writeBits(BigInteger.TEN, 8);
    assertEquals(Byte.SIZE * 2, bs.available());
    assertEquals(2, bs.bytes());
    byte[] data = bs.toByteArray();
    assertEquals(2, data.length);
    assertEquals(1, data[0]);
    assertEquals(10, data[1]);
    bs.goToWriteMark();
    bs.writeBits(BigInteger.ZERO, 8);
    assertEquals(Byte.SIZE * 2, bs.available());
    assertEquals(2, bs.bytes());
    data = bs.toByteArray();
    assertEquals(2, data.length);
    assertEquals(1, data[0]);
    assertEquals(0, data[1]);
    bs.clearWriteMark();
    bs.writeBits(BigInteger.TEN, 8);
    data = bs.toByteArray();
    assertEquals(3, data.length);
    assertEquals(Byte.SIZE * 3, bs.available());
    assertEquals(130, bs.bytes());
    bs.goToWriteFromBeginning();
    bs.writeBits(BigInteger.ZERO, 8);
    bs.writeBits(BigInteger.ZERO, 8);
    data = bs.toByteArray();
    assertEquals(0, data[0]);
    assertEquals(0, data[1]);
  }

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Examples of com.peterhi.runtime.BitStream

    assertEquals(0, data[1]);
  }
  
  @Test
  public void testAlignWrite() throws Exception {
    BitStream bs = new BitStream(2);
    bs.writeBit(1);
    bs.alignWrite();
    bs.writeBit(1);
    byte[] data = bs.toByteArray();
    assertEquals(1, data[0]);
    assertEquals(1, data[1]);
    assertEquals(9, bs.available());
    assertEquals(2, bs.bytes());
  }

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Examples of com.peterhi.runtime.BitStream

    assertEquals(2, bs.bytes());
  }
  
  @Test
  public void testAlignRead() throws Exception {
    BitStream bs = new BitStream(new byte[] { 1, 1 }, 0, Byte.SIZE * 2);
    assertEquals(1, bs.readBit());
    bs.alignRead();
    assertEquals(1, bs.readBit());
    assertEquals(7, bs.available());
    assertEquals(2, bs.bytes());
  }

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