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Diffstat (limited to 'songdbj/javazoom/jl/decoder/Obuffer.java')
| -rw-r--r-- | songdbj/javazoom/jl/decoder/Obuffer.java | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/songdbj/javazoom/jl/decoder/Obuffer.java b/songdbj/javazoom/jl/decoder/Obuffer.java deleted file mode 100644 index 45a71a9baf..0000000000 --- a/songdbj/javazoom/jl/decoder/Obuffer.java +++ /dev/null | |||
| @@ -1,88 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * 11/19/04 1.0 moved to LGPL. | ||
| 3 | * 12/12/99 Added appendSamples() method for efficiency. MDM. | ||
| 4 | * 15/02/99 ,Java Conversion by E.B ,ebsp@iname.com, JavaLayer | ||
| 5 | * | ||
| 6 | * Declarations for output buffer, includes operating system | ||
| 7 | * implementation of the virtual Obuffer. Optional routines | ||
| 8 | * enabling seeks and stops added by Jeff Tsay. | ||
| 9 | * | ||
| 10 | * @(#) obuffer.h 1.8, last edit: 6/15/94 16:51:56 | ||
| 11 | * @(#) Copyright (C) 1993, 1994 Tobias Bading (bading@cs.tu-berlin.de) | ||
| 12 | * @(#) Berlin University of Technology | ||
| 13 | * | ||
| 14 | * Idea and first implementation for u-law output with fast downsampling by | ||
| 15 | * Jim Boucher (jboucher@flash.bu.edu) | ||
| 16 | * | ||
| 17 | * LinuxObuffer class written by | ||
| 18 | * Louis P. Kruger (lpkruger@phoenix.princeton.edu) | ||
| 19 | *----------------------------------------------------------------------- | ||
| 20 | * This program is free software; you can redistribute it and/or modify | ||
| 21 | * it under the terms of the GNU Library General Public License as published | ||
| 22 | * by the Free Software Foundation; either version 2 of the License, or | ||
| 23 | * (at your option) any later version. | ||
| 24 | * | ||
| 25 | * This program is distributed in the hope that it will be useful, | ||
| 26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 28 | * GNU Library General Public License for more details. | ||
| 29 | * | ||
| 30 | * You should have received a copy of the GNU Library General Public | ||
| 31 | * License along with this program; if not, write to the Free Software | ||
| 32 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 33 | *---------------------------------------------------------------------- | ||
| 34 | */ | ||
| 35 | package javazoom.jl.decoder; | ||
| 36 | |||
| 37 | /** | ||
| 38 | * Base Class for audio output. | ||
| 39 | */ | ||
| 40 | public abstract class Obuffer | ||
| 41 | { | ||
| 42 | public static final int OBUFFERSIZE = 2 * 1152; // max. 2 * 1152 samples per frame | ||
| 43 | public static final int MAXCHANNELS = 2; // max. number of channels | ||
| 44 | |||
| 45 | /** | ||
| 46 | * Takes a 16 Bit PCM sample. | ||
| 47 | */ | ||
| 48 | public abstract void append(int channel, short value); | ||
| 49 | |||
| 50 | /** | ||
| 51 | * Accepts 32 new PCM samples. | ||
| 52 | */ | ||
| 53 | public void appendSamples(int channel, float[] f) | ||
| 54 | { | ||
| 55 | short s; | ||
| 56 | for (int i=0; i<32;) | ||
| 57 | { | ||
| 58 | s = clip(f[i++]); | ||
| 59 | append(channel, s); | ||
| 60 | } | ||
| 61 | } | ||
| 62 | |||
| 63 | /** | ||
| 64 | * Clip Sample to 16 Bits | ||
| 65 | */ | ||
| 66 | private final short clip(float sample) | ||
| 67 | { | ||
| 68 | return ((sample > 32767.0f) ? 32767 : | ||
| 69 | ((sample < -32768.0f) ? -32768 : | ||
| 70 | (short) sample)); | ||
| 71 | } | ||
| 72 | |||
| 73 | /** | ||
| 74 | * Write the samples to the file or directly to the audio hardware. | ||
| 75 | */ | ||
| 76 | public abstract void write_buffer(int val); | ||
| 77 | public abstract void close(); | ||
| 78 | |||
| 79 | /** | ||
| 80 | * Clears all data in the buffer (for seeking). | ||
| 81 | */ | ||
| 82 | public abstract void clear_buffer(); | ||
| 83 | |||
| 84 | /** | ||
| 85 | * Notify the buffer that the user has stopped the stream. | ||
| 86 | */ | ||
| 87 | public abstract void set_stop_flag(); | ||
| 88 | } | ||