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@@ -1,524 +0,0 @@
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-/********************************************************************
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- * *
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- * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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- * *
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- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
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- * by the Xiph.Org Foundation http://www.xiph.org/ *
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- * *
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- ********************************************************************
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-
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- function: simple utility that runs audio through the psychoacoustics
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- without encoding
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- last mod: $Id: psytune.c 16037 2009-05-26 21:10:58Z xiphmont $
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-
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- ********************************************************************/
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-
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-/* NB: this is dead code, retained purely for doc and reference value
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- don't try to compile it */
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-
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-#include <stdio.h>
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-#include <stdlib.h>
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-#include <string.h>
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-#include <math.h>
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-
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-#include "vorbis/codec.h"
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-#include "codec_internal.h"
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-#include "os.h"
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-#include "misc.h"
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-#include "psy.h"
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-#include "mdct.h"
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-#include "smallft.h"
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-#include "window.h"
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-#include "scales.h"
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-#include "lpc.h"
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-#include "lsp.h"
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-#include "masking.h"
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-#include "registry.h"
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-
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-static vorbis_info_psy_global _psy_set0G={
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- 0, /* decaydBpms */
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- 8, /* lines per eighth octave */
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-
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- /* thresh sample period, preecho clamp trigger threshhold, range, minenergy */
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- 256, {26.f,26.f,26.f,30.f}, {-90.f,-90.f,-90.f,-90.f}, -90.f,
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- -6.f,
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-
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- 0,
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-
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- 0.,
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- 0.,
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-};
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-
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-static vp_part _vp_part0[]={
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- { 1,9e10f, 9e10f, 1.f,9999.f},
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- { 9999, .75f, 9e10f, .5f,9999.f},
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-/*{ 9999, 1.5f, 9e10f, .5f,9999.f},*/
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- { 18,9e10f, 9e10f, .5f, 30.f},
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- { 9999,9e10f, 9e10f, .5f, 30.f}
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-};
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-
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-static vp_couple _vp_couple0[]={
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- { 1, {9e10f,9e10f,0}, { 0.f, 0.f,0}, { 0.f, 0.f,0}, {0.f,0.f,0}},
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- { 18, {9e10f,9e10f,0}, { 0.f, 0.f,0}, { 0.f, 0.f,0}, {0.f,0.f,0}},
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- { 9999, {9e10f,9e10f,0}, { 0.f, 9e10f,0}, { 0.f,22.f,1}, {0.f,0.f,0}}
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-};
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-
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-static vorbis_info_psy _psy_set0={
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- ATH_Bark_dB_lineaggressive,
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-
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- -100.f,
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- -140.f,
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- 6.f, /* floor master att */
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-
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- /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 */
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- /* x: 63 88 125 175 250 350 500 700 1k 1.4k 2k 2.8k 4k 5.6k 8k 11.5k 16k Hz */
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- /* y: 0 10 20 30 40 50 60 70 80 90 100 dB */
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- 1, /* tonemaskp */
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- 0.f, /* tone master att */
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- /* 0 10 20 30 40 50 60 70 80 90 100 */
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- {
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- {-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*63*/
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- {-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*88*/
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- {-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*125*/
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-
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*175*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*250*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*350*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*500*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*700*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1000*/
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- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1400*/
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- {-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*2000*/
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- {-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*2800*/
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- {-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*4000*/
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-
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- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*5600*/
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-
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- {-30.f,-30.f,-33.f,-35.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*8000*/
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- {-30.f,-30.f,-33.f,-35.f,-40.f,-45.f,-50.f,-60.f,-70.f,-85.f,-100.f}, /*11500*/
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- {-24.f,-24.f,-26.f,-32.f,-32.f,-42.f,-50.f,-60.f,-70.f,-85.f,-100.f}, /*16000*/
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-
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- },
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-
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- 1,/* peakattp */
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- {{-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*63*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*88*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*125*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*175*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*250*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*350*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*500*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*700*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*1000*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*1400*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*2000*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*2800*/
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- {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*4000*/
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- {-10.f,-12.f,-14.f,-16.f,-16.f,-20.f,-24.f,-30.f,-32.f,-40.f,-40.f},/*5600*/
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- {-10.f,-12.f,-14.f,-16.f,-16.f,-20.f,-24.f,-30.f,-32.f,-40.f,-40.f},/*8000*/
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- {-10.f,-10.f,-10.f,-12.f,-14.f,-18.f,-22.f,-28.f,-32.f,-40.f,-40.f},/*11500*/
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- {-10.f,-10.f,-10.f,-12.f,-14.f,-18.f,-22.f,-28.f,-32.f,-40.f,-40.f},/*16000*/
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- },
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-
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- 1,/*noisemaskp */
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- -10.f, /* suppress any noise curve over maxspec+n */
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- .5f, /* low window */
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- .5f, /* high window */
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- 10,
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- 10,
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- 25,
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- {.000f, 0.f, /*63*/
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- .000f, 0.f, /*88*/
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- .000f, 0.f, /*125*/
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- .000f, 0.f, /*175*/
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- .000f, 0.f, /*250*/
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- .000f, 0.f, /*350*/
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- .000f, 0.f, /*500*/
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- .000f, 0.f, /*700*/
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- .000f, 0.f, /*1000*/
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- .300f, 0.f, /*1400*/
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- .300f, 0.f, /*2000*/
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- .300f, 0.f, /*2800*/
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- .500f, 0.f, /*4000*/
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- .700f, 0.f, /*5600*/
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- .850f, 0.f, /*8000*/
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- .900f, 0.f, /*11500*/
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- .900f, 1.f, /*16000*/
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- },
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-
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- 95.f, /* even decade + 5 is important; saves an rint() later in a
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- tight loop) */
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- -44.,
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-
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- 32,
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- _vp_part0,_vp_couple0
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-};
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-
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-static vorbis_info_floor1 _floor_set0={1,
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- {0},
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-
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- {32},
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- {0},
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- {0},
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- {{-1}},
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-
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- 2,
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- {0,1024,
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-
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- 88,31,243,
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-
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- 14,54,143,460,
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-
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- 6,3,10, 22,18,26, 41,36,47,
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- 69,61,78, 112,99,126, 185,162,211,
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- 329,282,387, 672,553,825
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- },
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-
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- 60,30,400,
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- 20,8,1,18.,
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- 20,600,
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- 960};
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-
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-
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-static vorbis_info_mapping0 mapping_info={1,{0,1},{0},{0},{0},0, 1, {0},{1}};
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-static codec_setup_info codec_setup0={ {0,0},
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- 1,1,1,1,1,0,1,
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- {NULL},
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- {0},{&mapping_info},
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- {0},{NULL},
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- {1},{&_floor_set0},
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- {2},{NULL},
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- {NULL},
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- {&_psy_set0},
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- &_psy_set0G};
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-
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-static int noisy=0;
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-void analysis(char *base,int i,float *v,int n,int bark,int dB){
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- if(noisy){
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- int j;
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- FILE *of;
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- char buffer[80];
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- sprintf(buffer,"%s_%d.m",base,i);
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- of=fopen(buffer,"w");
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-
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- for(j=0;j<n;j++){
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- if(dB && v[j]==0)
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- fprintf(of,"\n\n");
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- else{
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- if(bark)
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- fprintf(of,"%g ",toBARK(22050.f*j/n));
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- else
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- fprintf(of,"%g ",(float)j);
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-
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- if(dB){
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- fprintf(of,"%g\n",todB(v+j));
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- }else{
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- fprintf(of,"%g\n",v[j]);
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- }
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- }
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- }
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- fclose(of);
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- }
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-}
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-
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-long frameno=0;
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-
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-/****************************************************************/
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-
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-int main(int argc,char *argv[]){
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- int eos=0;
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- float nonz=0.f;
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- float acc=0.f;
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- float tot=0.f;
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- float ampmax=-9999,newmax;
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- float local_ampmax[2];
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-
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- int framesize=2048;
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- float ampmax_att_per_sec=-6.;
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-
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- float *pcm[2],*out[2],*window,*flr[2],*mask[2],*work[2];
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- signed char *buffer,*buffer2;
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- mdct_lookup m_look;
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- drft_lookup f_look;
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- vorbis_look_psy p_look;
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- vorbis_look_psy_global *pg_look;
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- vorbis_look_floor *floor_look;
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- vorbis_info vi;
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- long i,j,k;
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-
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- int ath=0;
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- int decayp=0;
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-
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- argv++;
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- while(*argv){
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- if(*argv[0]=='-'){
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- /* option */
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- if(argv[0][1]=='v'){
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- noisy=0;
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- }
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- }else
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- if(*argv[0]=='+'){
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- /* option */
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- if(argv[0][1]=='v'){
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- noisy=1;
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- }
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- }else
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- framesize=atoi(argv[0]);
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- argv++;
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- }
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-
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- vi.channels=2;
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- vi.codec_setup=&codec_setup0;
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-
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- pcm[0]=_ogg_malloc(framesize*sizeof(float));
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- pcm[1]=_ogg_malloc(framesize*sizeof(float));
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- out[0]=_ogg_calloc(framesize/2,sizeof(float));
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- out[1]=_ogg_calloc(framesize/2,sizeof(float));
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- work[0]=_ogg_calloc(framesize,sizeof(float));
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- work[1]=_ogg_calloc(framesize,sizeof(float));
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- flr[0]=_ogg_calloc(framesize/2,sizeof(float));
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- flr[1]=_ogg_calloc(framesize/2,sizeof(float));
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- buffer=_ogg_malloc(framesize*4);
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- buffer2=buffer+framesize*2;
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- window=_vorbis_window_create(0,framesize,framesize/2,framesize/2);
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- mdct_init(&m_look,framesize);
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- drft_init(&f_look,framesize);
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- _vp_psy_init(&p_look,&_psy_set0,&_psy_set0G,framesize/2,44100);
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- pg_look=_vp_global_look(&vi);
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- floor_look=_floor_P[1]->look(NULL,NULL,&_floor_set0);
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-
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- /* we cheat on the WAV header; we just bypass 44 bytes and never
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- verify that it matches 16bit/stereo/44.1kHz. */
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-
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- fread(buffer,1,44,stdin);
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- fwrite(buffer,1,44,stdout);
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- memset(buffer,0,framesize*2);
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-
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- analysis("window",0,window,framesize,0,0);
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-
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- fprintf(stderr,"Processing for frame size %d...\n",framesize);
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-
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- while(!eos){
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- long bytes=fread(buffer2,1,framesize*2,stdin);
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- if(bytes<framesize*2)
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- memset(buffer2+bytes,0,framesize*2-bytes);
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-
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- if(bytes!=0){
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- int nonzero[2];
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-
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- /* uninterleave samples */
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- for(i=0;i<framesize;i++){
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- pcm[0][i]=((buffer[i*4+1]<<8)|
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- (0x00ff&(int)buffer[i*4]))/32768.f;
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- pcm[1][i]=((buffer[i*4+3]<<8)|
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- (0x00ff&(int)buffer[i*4+2]))/32768.f;
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- }
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-
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- {
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- float secs=framesize/44100.;
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-
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- ampmax+=secs*ampmax_att_per_sec;
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- if(ampmax<-9999)ampmax=-9999;
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- }
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-
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- for(i=0;i<2;i++){
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- float scale=4.f/framesize;
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- float *fft=work[i];
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- float *mdct=pcm[i];
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- float *logmdct=mdct+framesize/2;
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-
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- analysis("pre",frameno+i,pcm[i],framesize,0,0);
|
|
|
-
|
|
|
- /* fft and mdct transforms */
|
|
|
- for(j=0;j<framesize;j++)
|
|
|
- fft[j]=pcm[i][j]*=window[j];
|
|
|
-
|
|
|
- drft_forward(&f_look,fft);
|
|
|
-
|
|
|
- local_ampmax[i]=-9999.f;
|
|
|
- fft[0]*=scale;
|
|
|
- fft[0]=todB(fft);
|
|
|
- for(j=1;j<framesize-1;j+=2){
|
|
|
- float temp=scale*FAST_HYPOT(fft[j],fft[j+1]);
|
|
|
- temp=fft[(j+1)>>1]=todB(&temp);
|
|
|
- if(temp>local_ampmax[i])local_ampmax[i]=temp;
|
|
|
- }
|
|
|
- if(local_ampmax[i]>ampmax)ampmax=local_ampmax[i];
|
|
|
-
|
|
|
- mdct_forward(&m_look,pcm[i],mdct);
|
|
|
- for(j=0;j<framesize/2;j++)
|
|
|
- logmdct[j]=todB(mdct+j);
|
|
|
-
|
|
|
- analysis("mdct",frameno+i,logmdct,framesize/2,1,0);
|
|
|
- analysis("fft",frameno+i,fft,framesize/2,1,0);
|
|
|
- }
|
|
|
-
|
|
|
- for(i=0;i<2;i++){
|
|
|
- float amp;
|
|
|
- float *fft=work[i];
|
|
|
- float *logmax=fft;
|
|
|
- float *mdct=pcm[i];
|
|
|
- float *logmdct=mdct+framesize/2;
|
|
|
- float *mask=fft+framesize/2;
|
|
|
-
|
|
|
- /* floor psychoacoustics */
|
|
|
- _vp_compute_mask(&p_look,
|
|
|
- pg_look,
|
|
|
- i,
|
|
|
- fft,
|
|
|
- logmdct,
|
|
|
- mask,
|
|
|
- ampmax,
|
|
|
- local_ampmax[i],
|
|
|
- framesize/2);
|
|
|
-
|
|
|
- analysis("mask",frameno+i,mask,framesize/2,1,0);
|
|
|
-
|
|
|
- {
|
|
|
- vorbis_block vb;
|
|
|
- vorbis_dsp_state vd;
|
|
|
- memset(&vd,0,sizeof(vd));
|
|
|
- vd.vi=&vi;
|
|
|
- vb.vd=&vd;
|
|
|
- vb.pcmend=framesize;
|
|
|
-
|
|
|
- /* floor quantization/application */
|
|
|
- nonzero[i]=_floor_P[1]->forward(&vb,floor_look,
|
|
|
- mdct,
|
|
|
- logmdct,
|
|
|
- mask,
|
|
|
- logmax,
|
|
|
-
|
|
|
- flr[i]);
|
|
|
- }
|
|
|
-
|
|
|
- _vp_remove_floor(&p_look,
|
|
|
- pg_look,
|
|
|
- logmdct,
|
|
|
- mdct,
|
|
|
- flr[i],
|
|
|
- pcm[i],
|
|
|
- local_ampmax[i]);
|
|
|
-
|
|
|
- for(j=0;j<framesize/2;j++)
|
|
|
- if(fabs(pcm[i][j])>1500)
|
|
|
- fprintf(stderr,"%ld ",frameno+i);
|
|
|
-
|
|
|
- analysis("res",frameno+i,pcm[i],framesize/2,1,0);
|
|
|
- analysis("codedflr",frameno+i,flr[i],framesize/2,1,1);
|
|
|
- }
|
|
|
-
|
|
|
- /* residue prequantization */
|
|
|
- _vp_partition_prequant(&p_look,
|
|
|
- &vi,
|
|
|
- pcm,
|
|
|
- nonzero);
|
|
|
-
|
|
|
- for(i=0;i<2;i++)
|
|
|
- analysis("quant",frameno+i,pcm[i],framesize/2,1,0);
|
|
|
-
|
|
|
- /* channel coupling / stereo quantization */
|
|
|
-
|
|
|
- _vp_couple(&p_look,
|
|
|
- &mapping_info,
|
|
|
- pcm,
|
|
|
- nonzero);
|
|
|
-
|
|
|
- for(i=0;i<2;i++)
|
|
|
- analysis("coupled",frameno+i,pcm[i],framesize/2,1,0);
|
|
|
-
|
|
|
- /* decoupling */
|
|
|
- for(i=mapping_info.coupling_steps-1;i>=0;i--){
|
|
|
- float *pcmM=pcm[mapping_info.coupling_mag[i]];
|
|
|
- float *pcmA=pcm[mapping_info.coupling_ang[i]];
|
|
|
-
|
|
|
- for(j=0;j<framesize/2;j++){
|
|
|
- float mag=pcmM[j];
|
|
|
- float ang=pcmA[j];
|
|
|
-
|
|
|
- if(mag>0)
|
|
|
- if(ang>0){
|
|
|
- pcmM[j]=mag;
|
|
|
- pcmA[j]=mag-ang;
|
|
|
- }else{
|
|
|
- pcmA[j]=mag;
|
|
|
- pcmM[j]=mag+ang;
|
|
|
- }
|
|
|
- else
|
|
|
- if(ang>0){
|
|
|
- pcmM[j]=mag;
|
|
|
- pcmA[j]=mag+ang;
|
|
|
- }else{
|
|
|
- pcmA[j]=mag;
|
|
|
- pcmM[j]=mag-ang;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- for(i=0;i<2;i++)
|
|
|
- analysis("decoupled",frameno+i,pcm[i],framesize/2,1,0);
|
|
|
-
|
|
|
- for(i=0;i<2;i++){
|
|
|
- float amp;
|
|
|
-
|
|
|
- for(j=0;j<framesize/2;j++)
|
|
|
- pcm[i][j]*=flr[i][j];
|
|
|
-
|
|
|
- analysis("final",frameno+i,pcm[i],framesize/2,1,1);
|
|
|
-
|
|
|
- /* take it back to time */
|
|
|
- mdct_backward(&m_look,pcm[i],pcm[i]);
|
|
|
-
|
|
|
- for(j=0;j<framesize/2;j++)
|
|
|
- out[i][j]+=pcm[i][j]*window[j];
|
|
|
-
|
|
|
- analysis("out",frameno+i,out[i],framesize/2,0,0);
|
|
|
-
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- /* write data. Use the part of buffer we're about to shift out */
|
|
|
- for(i=0;i<2;i++){
|
|
|
- char *ptr=buffer+i*2;
|
|
|
- float *mono=out[i];
|
|
|
- int flag=0;
|
|
|
- for(j=0;j<framesize/2;j++){
|
|
|
- int val=mono[j]*32767.;
|
|
|
- /* might as well guard against clipping */
|
|
|
- if(val>32767){
|
|
|
- if(!flag)fprintf(stderr,"clipping in frame %ld ",frameno+i);
|
|
|
- flag=1;
|
|
|
- val=32767;
|
|
|
- }
|
|
|
- if(val<-32768){
|
|
|
- if(!flag)fprintf(stderr,"clipping in frame %ld ",frameno+i);
|
|
|
- flag=1;
|
|
|
- val=-32768;
|
|
|
- }
|
|
|
- ptr[0]=val&0xff;
|
|
|
- ptr[1]=(val>>8)&0xff;
|
|
|
- ptr+=4;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- fprintf(stderr,"*");
|
|
|
- fwrite(buffer,1,framesize*2,stdout);
|
|
|
- memmove(buffer,buffer2,framesize*2);
|
|
|
-
|
|
|
- for(i=0;i<2;i++){
|
|
|
- for(j=0,k=framesize/2;j<framesize/2;j++,k++)
|
|
|
- out[i][j]=pcm[i][k]*window[k];
|
|
|
- }
|
|
|
- frameno+=2;
|
|
|
- }else
|
|
|
- eos=1;
|
|
|
- }
|
|
|
- fprintf(stderr,"average raw bits of entropy: %.03g/sample\n",acc/tot);
|
|
|
- fprintf(stderr,"average nonzero samples: %.03g/%d\n",nonz/tot*framesize/2,
|
|
|
- framesize/2);
|
|
|
- fprintf(stderr,"Done\n\n");
|
|
|
- return 0;
|
|
|
-}
|
Johxz