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Diffstat (limited to 'songdbj/javazoom/jl/decoder/LayerIIDecoder.java')
-rw-r--r--songdbj/javazoom/jl/decoder/LayerIIDecoder.java1064
1 files changed, 0 insertions, 1064 deletions
diff --git a/songdbj/javazoom/jl/decoder/LayerIIDecoder.java b/songdbj/javazoom/jl/decoder/LayerIIDecoder.java
deleted file mode 100644
index 7265b1f8fa..0000000000
--- a/songdbj/javazoom/jl/decoder/LayerIIDecoder.java
+++ /dev/null
@@ -1,1064 +0,0 @@
-/*
- * 11/19/04 1.0 moved to LGPL.
- *
- * 29/05/01 Michael Scheerer, Fixed some C++ to Java porting bugs.
- *
- * 16/07/01 Michael Scheerer, Catched a bug in method
- * read_sampledata, which causes an outOfIndexException.
- *
- * 12/12/99 Initial version. Adapted from javalayer.java
- * and Subband*.java. mdm@techie.com
- *
- * 02/28/99 Initial version : javalayer.java by E.B
- *-----------------------------------------------------------------------
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *----------------------------------------------------------------------
- */
-
-package javazoom.jl.decoder;
-
-/**
- * Implements decoding of MPEG Audio Layer II frames.
- */
-class LayerIIDecoder extends LayerIDecoder implements FrameDecoder
-{
-
- public LayerIIDecoder()
- {
- }
-
-
- protected void createSubbands()
- {
- int i;
- if (mode == Header.SINGLE_CHANNEL)
- for (i = 0; i < num_subbands; ++i)
- subbands[i] = new SubbandLayer2(i);
- else if (mode == Header.JOINT_STEREO)
- {
- for (i = 0; i < header.intensity_stereo_bound(); ++i)
- subbands[i] = new SubbandLayer2Stereo(i);
- for (; i < num_subbands; ++i)
- subbands[i] = new SubbandLayer2IntensityStereo(i);
- }
- else
- {
- for (i = 0; i < num_subbands; ++i)
- subbands[i] = new SubbandLayer2Stereo(i);
- }
-
- }
-
- protected void readScaleFactorSelection()
- {
- for (int i = 0; i < num_subbands; ++i)
- ((SubbandLayer2)subbands[i]).read_scalefactor_selection(stream, crc);
- }
-
-
-
- /**
- * Class for layer II subbands in single channel mode.
- */
- static class SubbandLayer2 extends Subband
- {
- // this table contains 3 requantized samples for each legal codeword
- // when grouped in 5 bits, i.e. 3 quantizationsteps per sample
- public static final float grouping_5bits[] = new float[]
- {
- -2.0f/3.0f, -2.0f/3.0f, -2.0f/3.0f,
- 0.0f, -2.0f/3.0f, -2.0f/3.0f,
- 2.0f/3.0f, -2.0f/3.0f, -2.0f/3.0f,
- -2.0f/3.0f, 0.0f, -2.0f/3.0f,
- 0.0f, 0.0f, -2.0f/3.0f,
- 2.0f/3.0f, 0.0f, -2.0f/3.0f,
- -2.0f/3.0f, 2.0f/3.0f, -2.0f/3.0f,
- 0.0f, 2.0f/3.0f, -2.0f/3.0f,
- 2.0f/3.0f, 2.0f/3.0f, -2.0f/3.0f,
- -2.0f/3.0f, -2.0f/3.0f, 0.0f,
- 0.0f, -2.0f/3.0f, 0.0f,
- 2.0f/3.0f, -2.0f/3.0f, 0.0f,
- -2.0f/3.0f, 0.0f, 0.0f,
- 0.0f, 0.0f, 0.0f,
- 2.0f/3.0f, 0.0f, 0.0f,
- -2.0f/3.0f, 2.0f/3.0f, 0.0f,
- 0.0f, 2.0f/3.0f, 0.0f,
- 2.0f/3.0f, 2.0f/3.0f, 0.0f,
- -2.0f/3.0f, -2.0f/3.0f, 2.0f/3.0f,
- 0.0f, -2.0f/3.0f, 2.0f/3.0f,
- 2.0f/3.0f, -2.0f/3.0f, 2.0f/3.0f,
- -2.0f/3.0f, 0.0f, 2.0f/3.0f,
- 0.0f, 0.0f, 2.0f/3.0f,
- 2.0f/3.0f, 0.0f, 2.0f/3.0f,
- -2.0f/3.0f, 2.0f/3.0f, 2.0f/3.0f,
- 0.0f, 2.0f/3.0f, 2.0f/3.0f,
- 2.0f/3.0f, 2.0f/3.0f, 2.0f/3.0f
- };
-
- // this table contains 3 requantized samples for each legal codeword
- // when grouped in 7 bits, i.e. 5 quantizationsteps per sample
- public static final float grouping_7bits[] = new float[]
- {
- -0.8f, -0.8f, -0.8f, -0.4f, -0.8f, -0.8f, 0.0f, -0.8f, -0.8f, 0.4f, -0.8f, -0.8f, 0.8f, -0.8f, -0.8f,
- -0.8f, -0.4f, -0.8f, -0.4f, -0.4f, -0.8f, 0.0f, -0.4f, -0.8f, 0.4f, -0.4f, -0.8f, 0.8f, -0.4f, -0.8f,
- -0.8f, 0.0f, -0.8f, -0.4f, 0.0f, -0.8f, 0.0f, 0.0f, -0.8f, 0.4f, 0.0f, -0.8f, 0.8f, 0.0f, -0.8f,
- -0.8f, 0.4f, -0.8f, -0.4f, 0.4f, -0.8f, 0.0f, 0.4f, -0.8f, 0.4f, 0.4f, -0.8f, 0.8f, 0.4f, -0.8f,
- -0.8f, 0.8f, -0.8f, -0.4f, 0.8f, -0.8f, 0.0f, 0.8f, -0.8f, 0.4f, 0.8f, -0.8f, 0.8f, 0.8f, -0.8f,
- -0.8f, -0.8f, -0.4f, -0.4f, -0.8f, -0.4f, 0.0f, -0.8f, -0.4f, 0.4f, -0.8f, -0.4f, 0.8f, -0.8f, -0.4f,
- -0.8f, -0.4f, -0.4f, -0.4f, -0.4f, -0.4f, 0.0f, -0.4f, -0.4f, 0.4f, -0.4f, -0.4f, 0.8f, -0.4f, -0.4f,
- -0.8f, 0.0f, -0.4f, -0.4f, 0.0f, -0.4f, 0.0f, 0.0f, -0.4f, 0.4f, 0.0f, -0.4f, 0.8f, 0.0f, -0.4f,
- -0.8f, 0.4f, -0.4f, -0.4f, 0.4f, -0.4f, 0.0f, 0.4f, -0.4f, 0.4f, 0.4f, -0.4f, 0.8f, 0.4f, -0.4f,
- -0.8f, 0.8f, -0.4f, -0.4f, 0.8f, -0.4f, 0.0f, 0.8f, -0.4f, 0.4f, 0.8f, -0.4f, 0.8f, 0.8f, -0.4f,
- -0.8f, -0.8f, 0.0f, -0.4f, -0.8f, 0.0f, 0.0f, -0.8f, 0.0f, 0.4f, -0.8f, 0.0f, 0.8f, -0.8f, 0.0f,
- -0.8f, -0.4f, 0.0f, -0.4f, -0.4f, 0.0f, 0.0f, -0.4f, 0.0f, 0.4f, -0.4f, 0.0f, 0.8f, -0.4f, 0.0f,
- -0.8f, 0.0f, 0.0f, -0.4f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.0f, 0.0f, 0.8f, 0.0f, 0.0f,
- -0.8f, 0.4f, 0.0f, -0.4f, 0.4f, 0.0f, 0.0f, 0.4f, 0.0f, 0.4f, 0.4f, 0.0f, 0.8f, 0.4f, 0.0f,
- -0.8f, 0.8f, 0.0f, -0.4f, 0.8f, 0.0f, 0.0f, 0.8f, 0.0f, 0.4f, 0.8f, 0.0f, 0.8f, 0.8f, 0.0f,
- -0.8f, -0.8f, 0.4f, -0.4f, -0.8f, 0.4f, 0.0f, -0.8f, 0.4f, 0.4f, -0.8f, 0.4f, 0.8f, -0.8f, 0.4f,
- -0.8f, -0.4f, 0.4f, -0.4f, -0.4f, 0.4f, 0.0f, -0.4f, 0.4f, 0.4f, -0.4f, 0.4f, 0.8f, -0.4f, 0.4f,
- -0.8f, 0.0f, 0.4f, -0.4f, 0.0f, 0.4f, 0.0f, 0.0f, 0.4f, 0.4f, 0.0f, 0.4f, 0.8f, 0.0f, 0.4f,
- -0.8f, 0.4f, 0.4f, -0.4f, 0.4f, 0.4f, 0.0f, 0.4f, 0.4f, 0.4f, 0.4f, 0.4f, 0.8f, 0.4f, 0.4f,
- -0.8f, 0.8f, 0.4f, -0.4f, 0.8f, 0.4f, 0.0f, 0.8f, 0.4f, 0.4f, 0.8f, 0.4f, 0.8f, 0.8f, 0.4f,
- -0.8f, -0.8f, 0.8f, -0.4f, -0.8f, 0.8f, 0.0f, -0.8f, 0.8f, 0.4f, -0.8f, 0.8f, 0.8f, -0.8f, 0.8f,
- -0.8f, -0.4f, 0.8f, -0.4f, -0.4f, 0.8f, 0.0f, -0.4f, 0.8f, 0.4f, -0.4f, 0.8f, 0.8f, -0.4f, 0.8f,
- -0.8f, 0.0f, 0.8f, -0.4f, 0.0f, 0.8f, 0.0f, 0.0f, 0.8f, 0.4f, 0.0f, 0.8f, 0.8f, 0.0f, 0.8f,
- -0.8f, 0.4f, 0.8f, -0.4f, 0.4f, 0.8f, 0.0f, 0.4f, 0.8f, 0.4f, 0.4f, 0.8f, 0.8f, 0.4f, 0.8f,
- -0.8f, 0.8f, 0.8f, -0.4f, 0.8f, 0.8f, 0.0f, 0.8f, 0.8f, 0.4f, 0.8f, 0.8f, 0.8f, 0.8f, 0.8f
- };
-
- // this table contains 3 requantized samples for each legal codeword
- // when grouped in 10 bits, i.e. 9 quantizationsteps per sample
- public static final float grouping_10bits[] =
- {
- -8.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f, 0.0f, -8.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, 0.0f, -6.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, 0.0f, -4.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f, 0.0f, -2.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -2.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, 0.0f, -8.0f/9.0f, -6.0f/9.0f, 0.0f, -8.0f/9.0f, -4.0f/9.0f, 0.0f, -8.0f/9.0f,
- -2.0f/9.0f, 0.0f, -8.0f/9.0f, 0.0f, 0.0f, -8.0f/9.0f, 2.0f/9.0f, 0.0f, -8.0f/9.0f,
- 4.0f/9.0f, 0.0f, -8.0f/9.0f, 6.0f/9.0f, 0.0f, -8.0f/9.0f, 8.0f/9.0f, 0.0f, -8.0f/9.0f,
- -8.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, 0.0f, 2.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f, 0.0f, 4.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 4.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, 0.0f, 6.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f,
- -2.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, 0.0f, 8.0f/9.0f, -8.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f,
- 4.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f,
- -8.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f,
- -2.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 0.0f, -8.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f,
- 4.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, -6.0f/9.0f,
- -8.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f,
- -2.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, 0.0f, -6.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f,
- 4.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f,
- -8.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f,
- -2.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, 0.0f, -4.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f,
- 4.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f,
- -8.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f,
- -2.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f, 0.0f, -2.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f,
- 4.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -2.0f/9.0f, -6.0f/9.0f,
- -8.0f/9.0f, 0.0f, -6.0f/9.0f, -6.0f/9.0f, 0.0f, -6.0f/9.0f, -4.0f/9.0f, 0.0f, -6.0f/9.0f,
- -2.0f/9.0f, 0.0f, -6.0f/9.0f, 0.0f, 0.0f, -6.0f/9.0f, 2.0f/9.0f, 0.0f, -6.0f/9.0f,
- 4.0f/9.0f, 0.0f, -6.0f/9.0f, 6.0f/9.0f, 0.0f, -6.0f/9.0f, 8.0f/9.0f, 0.0f, -6.0f/9.0f,
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- -8.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 0.0f, -8.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -8.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, 0.0f, -6.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, 0.0f, -4.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f, 0.0f, -2.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -2.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, 0.0f, 8.0f/9.0f, -6.0f/9.0f, 0.0f, 8.0f/9.0f, -4.0f/9.0f, 0.0f, 8.0f/9.0f,
- -2.0f/9.0f, 0.0f, 8.0f/9.0f, 0.0f, 0.0f, 8.0f/9.0f, 2.0f/9.0f, 0.0f, 8.0f/9.0f,
- 4.0f/9.0f, 0.0f, 8.0f/9.0f, 6.0f/9.0f, 0.0f, 8.0f/9.0f, 8.0f/9.0f, 0.0f, 8.0f/9.0f,
- -8.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, 0.0f, 2.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f, 0.0f, 4.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 4.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, 0.0f, 6.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f,
- -8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -6.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, -4.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f,
- -2.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 0.0f, 8.0f/9.0f, 8.0f/9.0f, 2.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f,
- 4.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 6.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f, 8.0f/9.0f
- };
-
- // data taken from ISO/IEC DIS 11172, Annexes 3-B.2[abcd] and 3-B.4:
-
- // subbands 0-2 in tables 3-B.2a and 2b: (index is allocation)
- public static final int table_ab1_codelength[] =
- // bits per codeword
- { 0, 5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
-
- public static final float table_ab1_groupingtables[][] =
- // pointer to sample grouping table, or NULL-pointer if ungrouped
- { null, grouping_5bits, null, null, null, null, null, null, null, null, null, null, null, null, null, null };
-
- public static final float table_ab1_factor[] =
- // factor for requantization: (real)sample * factor - 1.0 gives requantized sample
- { 0.0f, 1.0f/2.0f, 1.0f/4.0f, 1.0f/8.0f, 1.0f/16.0f, 1.0f/32.0f, 1.0f/64.0f,
- 1.0f/128.0f, 1.0f/256.0f, 1.0f/512.0f, 1.0f/1024.0f, 1.0f/2048.0f,
- 1.0f/4096.0f, 1.0f/8192.0f, 1.0f/16384.0f, 1.0f/32768.0f };
-
- public static final float table_ab1_c[] =
- // factor c for requantization from table 3-B.4
- { 0.0f, 1.33333333333f, 1.14285714286f, 1.06666666666f, 1.03225806452f,
- 1.01587301587f, 1.00787401575f, 1.00392156863f, 1.00195694716f, 1.00097751711f,
- 1.00048851979f, 1.00024420024f, 1.00012208522f, 1.00006103888f, 1.00003051851f,
- 1.00001525902f };
-
- public static final float table_ab1_d[] =
- // addend d for requantization from table 3-B.4
- { 0.0f, 0.50000000000f, 0.25000000000f, 0.12500000000f, 0.06250000000f,
- 0.03125000000f, 0.01562500000f, 0.00781250000f, 0.00390625000f, 0.00195312500f,
- 0.00097656250f, 0.00048828125f, 0.00024414063f, 0.00012207031f, 0.00006103516f,
- 0.00003051758f };
-
- // subbands 3-... tables 3-B.2a and 2b:
- public static final float[] table_ab234_groupingtables[] =
- { null, grouping_5bits, grouping_7bits, null, grouping_10bits, null, null, null, null, null, null, null, null, null, null, null };
-
- // subbands 3-10 in tables 3-B.2a and 2b:
- public static final int table_ab2_codelength[] =
- { 0, 5, 7, 3, 10, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16 };
- public static final float table_ab2_factor[] =
- { 0.0f, 1.0f/2.0f, 1.0f/4.0f, 1.0f/4.0f, 1.0f/8.0f, 1.0f/8.0f, 1.0f/16.0f,
- 1.0f/32.0f, 1.0f/64.0f, 1.0f/128.0f, 1.0f/256.0f, 1.0f/512.0f,
- 1.0f/1024.0f, 1.0f/2048.0f, 1.0f/4096.0f, 1.0f/32768.0f };
- public static final float table_ab2_c[] =
- { 0.0f, 1.33333333333f, 1.60000000000f, 1.14285714286f, 1.77777777777f,
- 1.06666666666f, 1.03225806452f, 1.01587301587f, 1.00787401575f, 1.00392156863f,
- 1.00195694716f, 1.00097751711f, 1.00048851979f, 1.00024420024f, 1.00012208522f,
- 1.00001525902f };
- public static final float table_ab2_d[] =
- { 0.0f, 0.50000000000f, 0.50000000000f, 0.25000000000f, 0.50000000000f,
- 0.12500000000f, 0.06250000000f, 0.03125000000f, 0.01562500000f, 0.00781250000f,
- 0.00390625000f, 0.00195312500f, 0.00097656250f, 0.00048828125f, 0.00024414063f,
- 0.00003051758f };
-
- // subbands 11-22 in tables 3-B.2a and 2b:
- public static final int table_ab3_codelength[] = { 0, 5, 7, 3, 10, 4, 5, 16 };
- public static final float table_ab3_factor[] =
- { 0.0f, 1.0f/2.0f, 1.0f/4.0f, 1.0f/4.0f, 1.0f/8.0f, 1.0f/8.0f, 1.0f/16.0f, 1.0f/32768.0f };
- public static final float table_ab3_c[] =
- { 0.0f, 1.33333333333f, 1.60000000000f, 1.14285714286f, 1.77777777777f,
- 1.06666666666f, 1.03225806452f, 1.00001525902f };
- public static final float table_ab3_d[] =
- { 0.0f, 0.50000000000f, 0.50000000000f, 0.25000000000f, 0.50000000000f,
- 0.12500000000f, 0.06250000000f, 0.00003051758f };
-
- // subbands 23-... in tables 3-B.2a and 2b:
- public static final int table_ab4_codelength[] = { 0, 5, 7, 16 };
- public static final float table_ab4_factor[] = { 0.0f, 1.0f/2.0f, 1.0f/4.0f, 1.0f/32768.0f };
- public static final float table_ab4_c[] = { 0.0f, 1.33333333333f, 1.60000000000f, 1.00001525902f };
- public static final float table_ab4_d[] = { 0.0f, 0.50000000000f, 0.50000000000f, 0.00003051758f };
-
- // subbands in tables 3-B.2c and 2d:
- public static final int table_cd_codelength[] =
- { 0, 5, 7, 10, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
- public static final float table_cd_groupingtables[][] =
- { null, grouping_5bits, grouping_7bits, grouping_10bits, null, null, null, null, null, null, null, null, null, null, null, null };
- public static final float table_cd_factor[] =
- { 0.0f, 1.0f/2.0f, 1.0f/4.0f, 1.0f/8.0f, 1.0f/8.0f, 1.0f/16.0f, 1.0f/32.0f, 1.0f/64.0f,
- 1.0f/128.0f, 1.0f/256.0f, 1.0f/512.0f, 1.0f/1024.0f, 1.0f/2048.0f, 1.0f/4096.0f,
- 1.0f/8192.0f, 1.0f/16384.0f };
- public static final float table_cd_c[] =
- { 0.0f, 1.33333333333f, 1.60000000000f, 1.77777777777f, 1.06666666666f,
- 1.03225806452f, 1.01587301587f, 1.00787401575f, 1.00392156863f, 1.00195694716f,
- 1.00097751711f, 1.00048851979f, 1.00024420024f, 1.00012208522f, 1.00006103888f,
- 1.00003051851f };
- public static final float table_cd_d[] =
- { 0.0f, 0.50000000000f, 0.50000000000f, 0.50000000000f, 0.12500000000f,
- 0.06250000000f, 0.03125000000f, 0.01562500000f, 0.00781250000f, 0.00390625000f,
- 0.00195312500f, 0.00097656250f, 0.00048828125f, 0.00024414063f, 0.00012207031f,
- 0.00006103516f };
-
-
-
- protected int subbandnumber;
- protected int allocation;
- protected int scfsi;
- protected float scalefactor1, scalefactor2, scalefactor3;
- protected int[] codelength = {0};
- protected float groupingtable[][] = new float[2][];
- //protected float[][] groupingtable = {{0},{0}} ;
- protected float[] factor = {0.0f};
- protected int groupnumber;
- protected int samplenumber;
- protected float[] samples = new float[3];
- protected float[] c = {0};
- protected float[] d = {0};
- /**
- * Constructor
- */
- public SubbandLayer2(int subbandnumber)
- {
- this.subbandnumber = subbandnumber;
- groupnumber = samplenumber = 0;
- }
-
-
- /**
- *
- */
- protected int get_allocationlength (Header header)
- {
- if (header.version() == Header.MPEG1)
- {
- int channel_bitrate = header.bitrate_index();
-
- // calculate bitrate per channel:
- if (header.mode() != Header.SINGLE_CHANNEL)
- if (channel_bitrate == 4)
- channel_bitrate = 1;
- else
- channel_bitrate -= 4;
-
- if (channel_bitrate == 1 || channel_bitrate == 2)
- // table 3-B.2c or 3-B.2d
- if (subbandnumber <= 1)
- return 4;
- else
- return 3;
- else
- // tables 3-B.2a or 3-B.2b
- if (subbandnumber <= 10)
- return 4;
- else if (subbandnumber <= 22)
- return 3;
- else
- return 2;
- }
- else
- { // MPEG-2 LSF -- Jeff
-
- // table B.1 of ISO/IEC 13818-3
- if (subbandnumber <= 3)
- return 4;
- else if (subbandnumber <= 10)
- return 3;
- else
- return 2;
- }
- }
-
- /**
- *
- */
- protected void prepare_sample_reading(Header header, int allocation,
- //float[][] groupingtable,
- int channel,
- float[] factor, int[] codelength,
- float[] c, float[] d)
- {
- int channel_bitrate = header.bitrate_index();
- // calculate bitrate per channel:
- if (header.mode() != Header.SINGLE_CHANNEL)
- if (channel_bitrate == 4)
- channel_bitrate = 1;
- else
- channel_bitrate -= 4;
-
- if (channel_bitrate == 1 || channel_bitrate == 2)
- {
- // table 3-B.2c or 3-B.2d
- groupingtable[channel] = table_cd_groupingtables[allocation];
- factor[0] = table_cd_factor[allocation];
- codelength[0] = table_cd_codelength[allocation];
- c[0] = table_cd_c[allocation];
- d[0] = table_cd_d[allocation];
- }
- else
- {
- // tables 3-B.2a or 3-B.2b
- if (subbandnumber <= 2)
- {
- groupingtable[channel] = table_ab1_groupingtables[allocation];
- factor[0] = table_ab1_factor[allocation];
- codelength[0] = table_ab1_codelength[allocation];
- c[0] = table_ab1_c[allocation];
- d[0] = table_ab1_d[allocation];
- }
- else
- {
- groupingtable[channel] = table_ab234_groupingtables[allocation];
- if (subbandnumber <= 10)
- {
- factor[0] = table_ab2_factor[allocation];
- codelength[0] = table_ab2_codelength[allocation];
- c[0] = table_ab2_c[allocation];
- d[0] = table_ab2_d[allocation];
- }
- else if (subbandnumber <= 22)
- {
- factor[0] = table_ab3_factor[allocation];
- codelength[0] = table_ab3_codelength[allocation];
- c[0] = table_ab3_c[allocation];
- d[0] = table_ab3_d[allocation];
- }
- else
- {
- factor[0] = table_ab4_factor[allocation];
- codelength[0] = table_ab4_codelength[allocation];
- c[0] = table_ab4_c[allocation];
- d[0] = table_ab4_d[allocation];
- }
- }
- }
- }
-
-
- /**
- *
- */
- public void read_allocation(Bitstream stream, Header header, Crc16 crc)
- {
- int length = get_allocationlength(header);
- allocation = stream.get_bits(length);
- if (crc != null)
- crc.add_bits(allocation, length);
- }
-
- /**
- *
- */
- public void read_scalefactor_selection (Bitstream stream, Crc16 crc)
- {
- if (allocation != 0)
- {
- scfsi = stream.get_bits(2);
- if (crc != null) crc.add_bits(scfsi, 2);
- }
- }
-
- /**
- *
- */
- public void read_scalefactor (Bitstream stream, Header header)
- {
- if (allocation != 0)
- {
- switch (scfsi)
- {
- case 0:
- scalefactor1 = scalefactors[stream.get_bits(6)];
- scalefactor2 = scalefactors[stream.get_bits(6)];
- scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
- case 1:
- scalefactor1 = scalefactor2 = scalefactors[stream.get_bits(6)];
- scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
- case 2:
- scalefactor1 = scalefactor2 = scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
- case 3:
- scalefactor1 = scalefactors[stream.get_bits(6)];
- scalefactor2 = scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
- }
- prepare_sample_reading(header, allocation, 0,
- factor, codelength, c, d);
- }
- }
-
- /**
- *
- */
- public boolean read_sampledata (Bitstream stream)
- {
- if (allocation != 0)
- if (groupingtable[0] != null)
- {
- int samplecode = stream.get_bits(codelength[0]);
- // create requantized samples:
- samplecode += samplecode << 1;
- float[] target = samples;
- float[] source = groupingtable[0];
- /*
- int tmp = 0;
- int temp = 0;
- target[tmp++] = source[samplecode + temp];
- temp++;
- target[tmp++] = source[samplecode + temp];
- temp++;
- target[tmp] = source[samplecode + temp];
- */
- //Bugfix:
- int tmp = 0;
- int temp = samplecode;
-
- if(temp > source.length - 3) temp = source.length - 3;
-
- target[tmp] = source[temp];
- temp++;tmp++;
- target[tmp] = source[temp];
- temp++;tmp++;
- target[tmp] = source[temp];
-
- // memcpy (samples, groupingtable + samplecode, 3 * sizeof (real));
- }
- else
- {
- samples[0] = (float) ((stream.get_bits(codelength[0])) * factor[0] - 1.0);
- samples[1] = (float) ((stream.get_bits(codelength[0])) * factor[0] - 1.0);
- samples[2] = (float) ((stream.get_bits(codelength[0])) * factor[0] - 1.0);
- }
-
- samplenumber = 0;
- if (++groupnumber == 12)
- return true;
- else
- return false;
- }
-
- /**
- *
- */
- public boolean put_next_sample(int channels, SynthesisFilter filter1, SynthesisFilter filter2)
- {
- if ((allocation != 0) && (channels != OutputChannels.RIGHT_CHANNEL))
- {
- float sample = samples[samplenumber];
-
- if (groupingtable[0] == null)
- sample = (sample + d[0]) * c[0];
- if (groupnumber <= 4)
- sample *= scalefactor1;
- else if (groupnumber <= 8)
- sample *= scalefactor2;
- else
- sample *= scalefactor3;
- filter1.input_sample(sample, subbandnumber);
- }
-
- if (++samplenumber == 3)
- return true;
- else
- return false;
- }
- };
-
- /**
- * Class for layer II subbands in joint stereo mode.
- */
- static class SubbandLayer2IntensityStereo extends SubbandLayer2
- {
- protected int channel2_scfsi;
- protected float channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3;
-
- /**
- * Constructor
- */
- public SubbandLayer2IntensityStereo (int subbandnumber)
- {
- super(subbandnumber);
- }
-
- /**
- *
- */
- public void read_allocation(Bitstream stream, Header header, Crc16 crc)
- {
- super.read_allocation (stream, header, crc);
- }
-
- /**
- *
- */
- public void read_scalefactor_selection(Bitstream stream, Crc16 crc)
- {
- if (allocation != 0)
- {
- scfsi = stream.get_bits(2);
- channel2_scfsi = stream.get_bits(2);
- if (crc != null)
- {
- crc.add_bits(scfsi, 2);
- crc.add_bits(channel2_scfsi, 2);
- }
- }
- }
-
- /**
- *
- */
- public void read_scalefactor(Bitstream stream, Header header)
- {
- if (allocation != 0)
- {
- super.read_scalefactor(stream, header);
- switch (channel2_scfsi)
- {
- case 0:
- channel2_scalefactor1 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor2 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 1:
- channel2_scalefactor1 = channel2_scalefactor2 = scalefactors[stream.get_bits (6)];
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 2:
- channel2_scalefactor1 = channel2_scalefactor2 =
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 3:
- channel2_scalefactor1 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor2 = channel2_scalefactor3 = scalefactors[stream.get_bits (6)];
- break;
- }
- }
-
- }
-
- /**
- *
- */
- public boolean read_sampledata(Bitstream stream)
- {
- return super.read_sampledata (stream);
- }
-
- /**
- *
- */
- public boolean put_next_sample(int channels, SynthesisFilter filter1, SynthesisFilter filter2)
- {
- if (allocation != 0)
- {
- float sample = samples[samplenumber];
-
- if (groupingtable[0] == null)
- sample = (sample + d[0]) * c[0];
- if (channels == OutputChannels.BOTH_CHANNELS)
- {
- float sample2 = sample;
- if (groupnumber <= 4)
- {
- sample *= scalefactor1;
- sample2 *= channel2_scalefactor1;
- }
- else if (groupnumber <= 8)
- {
- sample *= scalefactor2;
- sample2 *= channel2_scalefactor2;
- }
- else
- {
- sample *= scalefactor3;
- sample2 *= channel2_scalefactor3;
- }
- filter1.input_sample(sample, subbandnumber);
- filter2.input_sample(sample2, subbandnumber);
- }
- else if (channels == OutputChannels.LEFT_CHANNEL)
- {
- if (groupnumber <= 4)
- sample *= scalefactor1;
- else if (groupnumber <= 8)
- sample *= scalefactor2;
- else
- sample *= scalefactor3;
- filter1.input_sample(sample, subbandnumber);
- }
- else
- {
- if (groupnumber <= 4)
- sample *= channel2_scalefactor1;
- else if (groupnumber <= 8)
- sample *= channel2_scalefactor2;
- else
- sample *= channel2_scalefactor3;
- filter1.input_sample(sample, subbandnumber);
- }
- }
-
- if (++samplenumber == 3)
- return true;
- else
- return false;
- }
- };
-
- /**
- * Class for layer II subbands in stereo mode.
- */
- static class SubbandLayer2Stereo extends SubbandLayer2
- {
- protected int channel2_allocation;
- protected int channel2_scfsi;
- protected float channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3;
- //protected boolean channel2_grouping; ???? Never used!
- protected int[] channel2_codelength = {0};
- //protected float[][] channel2_groupingtable = {{0},{0}};
- protected float[] channel2_factor = {0};
- protected float[] channel2_samples;
- protected float[] channel2_c = {0};
- protected float[] channel2_d = {0};
-
- /**
- * Constructor
- */
- public SubbandLayer2Stereo(int subbandnumber)
- {
- super(subbandnumber);
- channel2_samples = new float[3];
- }
-
- /**
- *
- */
- public void read_allocation (Bitstream stream, Header header, Crc16 crc)
- {
- int length = get_allocationlength(header);
- allocation = stream.get_bits(length);
- channel2_allocation = stream.get_bits(length);
- if (crc != null)
- {
- crc.add_bits(allocation, length);
- crc.add_bits(channel2_allocation, length);
- }
- }
-
- /**
- *
- */
- public void read_scalefactor_selection(Bitstream stream, Crc16 crc)
- {
- if (allocation != 0)
- {
- scfsi = stream.get_bits(2);
- if (crc != null)
- crc.add_bits(scfsi, 2);
- }
- if (channel2_allocation != 0)
- {
- channel2_scfsi = stream.get_bits(2);
- if (crc != null)
- crc.add_bits(channel2_scfsi, 2);
- }
- }
-
- /**
- *
- */
- public void read_scalefactor(Bitstream stream, Header header)
- {
- super.read_scalefactor(stream, header);
- if (channel2_allocation != 0)
- {
- switch (channel2_scfsi)
- {
- case 0:
- channel2_scalefactor1 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor2 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 1:
- channel2_scalefactor1 = channel2_scalefactor2 =
- scalefactors[stream.get_bits(6)];
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 2:
- channel2_scalefactor1 = channel2_scalefactor2 =
- channel2_scalefactor3 = scalefactors[stream.get_bits(6)];
- break;
-
- case 3:
- channel2_scalefactor1 = scalefactors[stream.get_bits(6)];
- channel2_scalefactor2 = channel2_scalefactor3 =
- scalefactors[stream.get_bits(6)];
- break;
- }
- prepare_sample_reading(header, channel2_allocation, 1,
- channel2_factor, channel2_codelength, channel2_c,
- channel2_d);
- }
- }
-
- /**
- *
- */
- public boolean read_sampledata (Bitstream stream)
- {
- boolean returnvalue = super.read_sampledata(stream);
-
- if (channel2_allocation != 0)
- if (groupingtable[1] != null)
- {
- int samplecode = stream.get_bits(channel2_codelength[0]);
- // create requantized samples:
- samplecode += samplecode << 1;
- /*
- float[] target = channel2_samples;
- float[] source = channel2_groupingtable[0];
- int tmp = 0;
- int temp = 0;
- target[tmp++] = source[samplecode + temp];
- temp++;
- target[tmp++] = source[samplecode + temp];
- temp++;
- target[tmp] = source[samplecode + temp];
- // memcpy (channel2_samples, channel2_groupingtable + samplecode, 3 * sizeof (real));
- */
- float[] target = channel2_samples;
- float[] source = groupingtable[1];
- int tmp = 0;
- int temp = samplecode;
- target[tmp] = source[temp];
- temp++;tmp++;
- target[tmp] = source[temp];
- temp++;tmp++;
- target[tmp] = source[temp];
-
- }
- else
- {
- channel2_samples[0] = (float) ((stream.get_bits(channel2_codelength[0])) *
- channel2_factor[0] - 1.0);
- channel2_samples[1] = (float) ((stream.get_bits(channel2_codelength[0])) *
- channel2_factor[0] - 1.0);
- channel2_samples[2] = (float) ((stream.get_bits(channel2_codelength[0])) *
- channel2_factor[0] - 1.0);
- }
- return returnvalue;
- }
-
- /**
- *
- */
- public boolean put_next_sample(int channels, SynthesisFilter filter1, SynthesisFilter filter2)
- {
- boolean returnvalue = super.put_next_sample(channels, filter1, filter2);
- if ((channel2_allocation != 0) && (channels != OutputChannels.LEFT_CHANNEL))
- {
- float sample = channel2_samples[samplenumber - 1];
-
- if (groupingtable[1] == null)
- sample = (sample + channel2_d[0]) * channel2_c[0];
-
- if (groupnumber <= 4)
- sample *= channel2_scalefactor1;
- else if (groupnumber <= 8)
- sample *= channel2_scalefactor2;
- else
- sample *= channel2_scalefactor3;
- if (channels == OutputChannels.BOTH_CHANNELS)
- filter2.input_sample(sample, subbandnumber);
- else
- filter1.input_sample(sample, subbandnumber);
- }
- return returnvalue;
- }
- }
-}
generated by cgit (git 2.34.1) at 2024-04-16 19:58:13 +0000