sbt.c
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上传日期:2013-07-19
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- //#define REDUCTION
- //#define EIGHT_BIT
- #include "statname.h"
- void fdct32(float *, float *);
- void fdct32_dual(float *, float *);
- void fdct32_dual_mono(float *, float *);
- void fdct16(float *, float *);
- void fdct16_dual(float *, float *);
- void fdct16_dual_mono(float *, float *);
- void fdct8(float *, float *);
- void fdct8_dual(float *, float *);
- void fdct8_dual_mono(float *, float *);
- void window(float *vbuf, int vb_ptr, unsigned char *pcm);
- void window_dual(float *vbuf, int vb_ptr, unsigned char *pcm);
- void window16(float *vbuf, int vb_ptr, unsigned char *pcm);
- void window16_dual(float *vbuf, int vb_ptr, unsigned char *pcm);
- void window8(float *vbuf, int vb_ptr, unsigned char *pcm);
- void window8_dual(float *vbuf, int vb_ptr, unsigned char *pcm);
- /*============================================================*/
- /*============== Layer I/II ==================================*/
- /*============================================================*/
- void sbt_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct32(sample, vbuf[0]+vb_ptr);
- window(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-32) & 511;
- pcm += 32*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt_dual(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct32_dual(sample, vbuf[0]+vb_ptr);
- fdct32_dual(sample+1, vbuf[1]+vb_ptr);
- window_dual(vbuf[0], vb_ptr, pcm);
- window_dual(vbuf[1], vb_ptr, pcm+sizeof(short));
- sample += 64;
- vb_ptr = (vb_ptr-32) & 511;
- pcm += 64*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /* convert dual to mono */
- void sbt_dual_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct32_dual_mono(sample, vbuf[0]+vb_ptr);
- window(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-32) & 511;
- pcm += 32*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /*------------------------------------------------------------*/
- #ifdef REDUCTION
- /*------------------------------------------------------------*/
- /* convert dual to left */
- void sbt_dual_left(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct32_dual(sample, vbuf[0]+vb_ptr);
- window(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-32) & 511;
- pcm += 32*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /* convert dual to right */
- void sbt_dual_right(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- sample++; /* point to right chan */
- for(i=0;i<n;i++) {
- fdct32_dual(sample, vbuf[0]+vb_ptr);
- window(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-32) & 511;
- pcm += 32*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /*---------------- 16 pt sbt's -------------------------------*/
- /*------------------------------------------------------------*/
- void sbt16_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct16(sample, vbuf[0]+vb_ptr);
- window16(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-16) & 255;
- pcm += 16*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt16_dual(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct16_dual(sample, vbuf[0]+vb_ptr);
- fdct16_dual(sample+1, vbuf[1]+vb_ptr);
- window16_dual(vbuf[0], vb_ptr, pcm);
- window16_dual(vbuf[1], vb_ptr, pcm+sizeof(short));
- sample += 64;
- vb_ptr = (vb_ptr-16) & 255;
- pcm += 32*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt16_dual_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct16_dual_mono(sample, vbuf[0]+vb_ptr);
- window16(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-16) & 255;
- pcm += 16*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt16_dual_left(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct16_dual(sample, vbuf[0]+vb_ptr);
- window16(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-16) & 255;
- pcm += 16*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt16_dual_right(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- sample++;
- for(i=0;i<n;i++) {
- fdct16_dual(sample, vbuf[0]+vb_ptr);
- window16(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-16) & 255;
- pcm += 16*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /*---------------- 8 pt sbt's -------------------------------*/
- /*------------------------------------------------------------*/
- void sbt8_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct8(sample, vbuf[0]+vb_ptr);
- window8(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-8) & 127;
- pcm += 8*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt8_dual(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct8_dual(sample, vbuf[0]+vb_ptr);
- fdct8_dual(sample+1, vbuf[1]+vb_ptr);
- window8_dual(vbuf[0], vb_ptr, pcm);
- window8_dual(vbuf[1], vb_ptr, pcm+sizeof(short));
- sample += 64;
- vb_ptr = (vb_ptr-8) & 127;
- pcm += 16*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt8_dual_mono(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct8_dual_mono(sample, vbuf[0]+vb_ptr);
- window8(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-8) & 127;
- pcm += 8*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt8_dual_left(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- for(i=0;i<n;i++) {
- fdct8_dual(sample, vbuf[0]+vb_ptr);
- window8(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-8) & 127;
- pcm += 8*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- void sbt8_dual_right(float *sample, unsigned char *pcm,
- int n, float vbuf[][512], int vb_ptr_arg[])
- {
- int i, vb_ptr;
- vb_ptr = vb_ptr_arg[0];
- sample++;
- for(i=0;i<n;i++) {
- fdct8_dual(sample, vbuf[0]+vb_ptr);
- window8(vbuf[0], vb_ptr, pcm);
- sample += 64;
- vb_ptr = (vb_ptr-8) & 127;
- pcm += 8*sizeof(short);
- }
- vb_ptr_arg[0] = vb_ptr;
- }
- /*------------------------------------------------------------*/
- /*------------------------------------------------------------*/
- // end reduction 16 bit
- #endif
- /*------------------------------------------------------------*/
- #ifdef EIGHT_BIT
- #include "csbtb.c" /* 8 bit output */
- #endif
- /*------------------------------------------------------------*/