| 0,0 → 1,81 |
|---|
| /* |
| * This is public domain software - that is, you can do whatever you want |
| * with it, and include it software that is licensed under the GNU or the |
| * BSD license, or whatever other licence you choose, including proprietary |
| * closed source licenses. I do ask that you leave this header in tact. |
| * |
| * If you make modifications to this code that you think would benefit the |
| * wider community, please send me a copy and I'll post it on my site. |
| * |
| * If you make use of this code, I'd appreciate hearing about it. |
| * drew@drewnoakes.com |
| * Latest version of this software kept at |
| * http://drewnoakes.com/ |
| * |
| * Created by dnoakes on Oct 9, 17:04:07 using IntelliJ IDEA. |
| */ |
| package com.drew.metadata.jpeg; |
| |
| import com.drew.metadata.MetadataException; |
| |
| import java.io.Serializable; |
| |
| /** |
| * Created by IntelliJ IDEA. |
| * User: dnoakes |
| * Date: 09-Oct-2003 |
| * Time: 17:04:07 |
| * To change this template use Options | File Templates. |
| */ |
| public class JpegComponent implements Serializable |
| { |
| private final int _componentId; |
| private final int _samplingFactorByte; |
| private final int _quantizationTableNumber; |
| |
| public JpegComponent(int componentId, int samplingFactorByte, int quantizationTableNumber) |
| { |
| _componentId = componentId; |
| _samplingFactorByte = samplingFactorByte; |
| _quantizationTableNumber = quantizationTableNumber; |
| } |
| |
| public int getComponentId() |
| { |
| return _componentId; |
| } |
| |
| public String getComponentName() throws MetadataException |
| { |
| switch (_componentId) |
| { |
| case 1: |
| return "Y"; |
| case 2: |
| return "Cb"; |
| case 3: |
| return "Cr"; |
| case 4: |
| return "I"; |
| case 5: |
| return "Q"; |
| } |
| |
| throw new MetadataException("Unsupported component id: " + _componentId); |
| } |
| |
| public int getQuantizationTableNumber() |
| { |
| return _quantizationTableNumber; |
| } |
| |
| public int getHorizontalSamplingFactor() |
| { |
| return _samplingFactorByte & 0x0F; |
| } |
| |
| public int getVerticalSamplingFactor() |
| { |
| return (_samplingFactorByte>>4) & 0x0F; |
| } |
| } |