Version 0.1.1 from FTP

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@95 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 276 insertions, 0 deletions

diff --git a/codecs/mp3/src/csbtb.c b/codecs/mp3/src/csbtb.c
new file mode 100755
index 000000000..158c38151
--- /dev/null
+++ b/codecs/mp3/src/csbtb.c
@@ -0,0 +1,276 @@
+/*____________________________________________________________________________
+	
+	FreeAmp - The Free MP3 Player
+
+        MP3 Decoder originally Copyright (C) 1995-1997 Xing Technology
+        Corp.  http://www.xingtech.com
+
+	Portions Copyright (C) 1998 EMusic.com
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+	
+	$Id$
+____________________________________________________________________________*/
+
+/****  csbtb.c  ***************************************************
+include to csbt.c
+
+MPEG audio decoder, dct and window - byte (8 pcm bit output)
+portable C
+
+******************************************************************/
+/*============================================================*/
+/*============================================================*/
+void windowB(MPEG *m, float *, int , unsigned char *pcm);
+void windowB_dual(MPEG *m, float *, int , unsigned char *pcm);
+void windowB16(MPEG *m, float *, int , unsigned char *pcm);
+void windowB16_dual(MPEG *m, float *, int , unsigned char *pcm);
+void windowB8(MPEG *m, float *, int , unsigned char *pcm);
+void windowB8_dual(MPEG *m, float *, int , unsigned char *pcm);
+
+/*============================================================*/
+void sbtB_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct32(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 32) & 511;
+      pcm += 32;
+   }
+
+}
+/*------------------------------------------------------------*/
+void sbtB_dual(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct32_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      fdct32_dual(m,sample + 1, m->csbt.vbuf2 + m->csbt.vb_ptr);
+      windowB_dual(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      windowB_dual(m,m->csbt.vbuf2, m->csbt.vb_ptr, pcm + 1);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 32) & 511;
+      pcm += 64;
+   }
+
+
+}
+/*------------------------------------------------------------*/
+/* convert dual to mono */
+void sbtB_dual_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct32_dual_mono(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 32) & 511;
+      pcm += 32;
+   }
+
+}
+/*------------------------------------------------------------*/
+/* convert dual to left */
+void sbtB_dual_left(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct32_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 32) & 511;
+      pcm += 32;
+   }
+}
+/*------------------------------------------------------------*/
+/* convert dual to right */
+void sbtB_dual_right(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   sample++;			/* point to right chan */
+   for (i = 0; i < n; i++)
+   {
+      fdct32_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 32) & 511;
+      pcm += 32;
+   }
+}
+/*------------------------------------------------------------*/
+/*---------------- 16 pt sbt's  -------------------------------*/
+/*------------------------------------------------------------*/
+void sbtB16_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct16(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB16(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 16) & 255;
+      pcm += 16;
+   }
+
+
+}
+/*------------------------------------------------------------*/
+void sbtB16_dual(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct16_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      fdct16_dual(m,sample + 1, m->csbt.vbuf2 + m->csbt.vb_ptr);
+      windowB16_dual(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      windowB16_dual(m,m->csbt.vbuf2, m->csbt.vb_ptr, pcm + 1);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 16) & 255;
+      pcm += 32;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB16_dual_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct16_dual_mono(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB16(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 16) & 255;
+      pcm += 16;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB16_dual_left(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct16_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB16(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 16) & 255;
+      pcm += 16;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB16_dual_right(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   sample++;
+   for (i = 0; i < n; i++)
+   {
+      fdct16_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB16(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 16) & 255;
+      pcm += 16;
+   }
+}
+/*------------------------------------------------------------*/
+/*---------------- 8 pt sbt's  -------------------------------*/
+/*------------------------------------------------------------*/
+void sbtB8_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct8(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB8(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 8) & 127;
+      pcm += 8;
+   }
+
+}
+/*------------------------------------------------------------*/
+void sbtB8_dual(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct8_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      fdct8_dual(m,sample + 1, m->csbt.vbuf2 + m->csbt.vb_ptr);
+      windowB8_dual(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      windowB8_dual(m,m->csbt.vbuf2, m->csbt.vb_ptr, pcm + 1);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 8) & 127;
+      pcm += 16;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB8_dual_mono(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct8_dual_mono(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB8(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 8) & 127;
+      pcm += 8;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB8_dual_left(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   for (i = 0; i < n; i++)
+   {
+      fdct8_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB8(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 8) & 127;
+      pcm += 8;
+   }
+}
+/*------------------------------------------------------------*/
+void sbtB8_dual_right(MPEG *m, float *sample, unsigned char *pcm, int n)
+{
+   int i;
+
+   sample++;
+   for (i = 0; i < n; i++)
+   {
+      fdct8_dual(m,sample, m->csbt.vbuf + m->csbt.vb_ptr);
+      windowB8(m,m->csbt.vbuf, m->csbt.vb_ptr, pcm);
+      sample += 64;
+      m->csbt.vb_ptr = (m->csbt.vb_ptr - 8) & 127;
+      pcm += 8;
+   }
+}
+/*------------------------------------------------------------*/