1 | package org.farng.mp3.id3; |
2 | |
3 | /** |
4 | * <h3>4.13.Equalisation</h3> |
5 | * <p/> |
6 | * <p class=t> This is another subjective, alignment frame. It allows the user to predefine an equalisation curve within |
7 | * the audio file. There may only be one "EQUA" frame in each tag. </p> |
8 | * <p/> |
9 | * <p><center> <table border=0> |
10 | * <p/> |
11 | * <tr><td colspan=2><Header of 'Equalisation', ID: "EQUA"></td></tr> <tr><td>Adjustment |
12 | * bits</td><td>$xx</td></tr> </table> </center> |
13 | * <p/> |
14 | * <p class=t> The 'adjustment bits' field defines the number of bits used for representation of the adjustment. This is |
15 | * normally $10 (16 bits) for <a href="#MPEG">MPEG</a> 2 layer I, II and III and MPEG 2.5. This value may not be $00. |
16 | * <p/> |
17 | * </p> |
18 | * <p/> |
19 | * <p class=t> This is followed by 2 bytes + ('adjustment bits' rounded up to the nearest byte) for every equalisation |
20 | * band in the following format, giving a frequency range of 0 - 32767Hz: </p> |
21 | * <p/> |
22 | * <p><center> <table border=0> <tr><td>Increment/decrement</td><td>%x (MSB of the Frequency)</td></tr> |
23 | * <tr><td>Frequency </td><td>(lower 15 bits)</td></tr> |
24 | * <p/> |
25 | * <tr><td>Adjustment</td><td>$xx (xx ...)</td></tr> </Table> </center> |
26 | * <p/> |
27 | * <p class=t> The increment/decrement bit is 1 for increment and 0 for decrement. The equalisation bands should be |
28 | * ordered increasingly with reference to frequency. All frequencies don't have to be declared. The equalisation curve |
29 | * in the reading software should be interpolated between the values in this frame. Three equal adjustments for three |
30 | * subsequent frequencies. A frequency should only be described once in the frame. </p> |
31 | * |
32 | * @author Eric Farng |
33 | * @version $Revision: 1.3 $ |
34 | */ |
35 | public class FrameBodyEQUA extends AbstractID3v2FrameBody { |
36 | |
37 | /** |
38 | * Creates a new FrameBodyEQUA object. |
39 | */ |
40 | public FrameBodyEQUA() { |
41 | super(); |
42 | } |
43 | |
44 | /** |
45 | * Creates a new FrameBodyEQUA object. |
46 | */ |
47 | public FrameBodyEQUA(final FrameBodyEQUA body) { |
48 | super(body); |
49 | } |
50 | |
51 | protected void setupObjectList() { |
52 | throw new UnsupportedOperationException("This frame has not been implemented."); |
53 | } |
54 | |
55 | public String getIdentifier() { |
56 | throw new UnsupportedOperationException("This frame has not been implemented."); |
57 | } |
58 | } |