author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:30:33 +0300 | |
branch | RCL_3 |
changeset 29 | 567bb019e3e3 |
parent 0 | 0e761a78d257 |
child 30 | 7e817e7e631c |
permissions | -rw-r--r-- |
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/* GStreamer |
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org> |
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* |
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* gstaudioquantize.c: quantizes audio to the target format and optionally |
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* applies dithering and noise shaping. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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/* |
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* FIXME: When doing dithering with int as intermediate format |
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* one gets audible harmonics while the noise floor is |
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* constant for double as intermediate format! |
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*/ |
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/* TODO: - Maybe drop 5-pole noise shaping and use coefficients |
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* generated by dmaker |
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* http://shibatch.sf.net |
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*/ |
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#include <gst/gst.h> |
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#include <string.h> |
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#include <math.h> |
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#include "audioconvert.h" |
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#include "gstaudioquantize.h" |
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#include "gstfastrandom.h" |
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#define MAKE_QUANTIZE_FUNC_NAME(name) \ |
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gst_audio_quantize_quantize_##name |
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/* Quantize functions for gint32 as intermediate format */ |
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#define MAKE_QUANTIZE_FUNC_I(name, DITHER_INIT_FUNC, ADD_DITHER_FUNC, \ |
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ROUND_FUNC) \ |
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static void \ |
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MAKE_QUANTIZE_FUNC_NAME (name) (AudioConvertCtx *ctx, gint32 *src, \ |
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gint32 *dst, gint count) \ |
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{ \ |
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gint scale = ctx->out_scale; \ |
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gint channels = ctx->out.channels; \ |
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gint chan_pos; \ |
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\ |
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if (scale > 0) { \ |
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gint32 tmp; \ |
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guint32 mask = 0xffffffff & (0xffffffff << scale); \ |
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guint32 bias = 1U << (scale - 1); \ |
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DITHER_INIT_FUNC() \ |
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\ |
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for (;count;count--) { \ |
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for (chan_pos = 0; chan_pos < channels; chan_pos++) { \ |
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tmp = *src++; \ |
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ADD_DITHER_FUNC() \ |
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ROUND_FUNC() \ |
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*dst = tmp & mask; \ |
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dst++; \ |
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} \ |
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} \ |
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} else { \ |
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for (;count;count--) { \ |
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for (chan_pos = 0; chan_pos < channels; chan_pos++) { \ |
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*dst = *src++; \ |
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dst++; \ |
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} \ |
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} \ |
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} \ |
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} |
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/* Quantize functions for gdouble as intermediate format with |
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* int as target */ |
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#define MAKE_QUANTIZE_FUNC_F(name, DITHER_INIT_FUNC, NS_INIT_FUNC, \ |
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ADD_NS_FUNC, ADD_DITHER_FUNC, \ |
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UPDATE_ERROR_FUNC) \ |
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static void \ |
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MAKE_QUANTIZE_FUNC_NAME (name) (AudioConvertCtx *ctx, gdouble *src, \ |
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gdouble *dst, gint count) \ |
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{ \ |
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gint scale = ctx->out_scale; \ |
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gint channels = ctx->out.channels; \ |
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gint chan_pos; \ |
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gdouble factor = (1U<<(32-scale-1)) - 1; \ |
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\ |
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if (scale > 0) { \ |
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gdouble tmp; \ |
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DITHER_INIT_FUNC() \ |
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NS_INIT_FUNC() \ |
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\ |
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for (;count;count--) { \ |
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for (chan_pos = 0; chan_pos < channels; chan_pos++) { \ |
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tmp = *src++; \ |
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ADD_NS_FUNC() \ |
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ADD_DITHER_FUNC() \ |
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tmp = floor(tmp * factor + 0.5); \ |
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*dst = CLAMP (tmp, -factor - 1, factor); \ |
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UPDATE_ERROR_FUNC() \ |
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dst++; \ |
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} \ |
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} \ |
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} else { \ |
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115 |
for (;count;count--) { \ |
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for (chan_pos = 0; chan_pos < channels; chan_pos++) { \ |
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*dst = *src++ * 2147483647.0; \ |
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dst++; \ |
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} \ |
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} \ |
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121 |
} \ |
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} |
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123 |
|
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124 |
/* Rounding functions for int as intermediate format, only used when |
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* not using dithering. With dithering we include this offset in our |
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* dither noise instead. */ |
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127 |
|
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#define ROUND() \ |
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if (tmp > 0 && G_MAXINT32 - tmp <= bias) \ |
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tmp = G_MAXINT32; \ |
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else \ |
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tmp += bias; |
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133 |
|
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134 |
|
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135 |
#define NONE_FUNC() |
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136 |
|
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137 |
/* Dithering definitions |
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* See http://en.wikipedia.org/wiki/Dithering or |
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* http://www.cadenzarecording.com/Dither.html for explainations. |
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140 |
* |
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141 |
* We already add the rounding offset to the dither noise here |
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* to have only one overflow check instead of two. */ |
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143 |
|
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#define INIT_DITHER_RPDF_I() \ |
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gint32 rand; \ |
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gint32 dither = (1<<(scale)); |
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147 |
|
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#define ADD_DITHER_RPDF_I() \ |
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rand = gst_fast_random_int32_range (bias - dither, \ |
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bias + dither); \ |
0
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if (rand > 0 && tmp > 0 && G_MAXINT32 - tmp <= rand) \ |
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tmp = G_MAXINT32; \ |
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else if (rand < 0 && tmp < 0 && G_MININT32 - tmp >= rand) \ |
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tmp = G_MININT32; \ |
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else \ |
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tmp += rand; |
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157 |
|
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#define INIT_DITHER_RPDF_F() \ |
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gdouble dither = 1.0/(1U<<(32 - scale - 1)); |
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160 |
|
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#define ADD_DITHER_RPDF_F() \ |
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tmp += gst_fast_random_double_range (- dither, dither); |
0
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163 |
|
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#define INIT_DITHER_TPDF_I() \ |
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gint32 rand; \ |
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gint32 dither = (1<<(scale - 1)); \ |
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bias = bias >> 1; |
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168 |
|
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#define ADD_DITHER_TPDF_I() \ |
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rand = gst_fast_random_int32_range (bias - dither, \ |
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bias + dither - 1) \ |
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+ gst_fast_random_int32_range (bias - dither, \ |
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bias + dither - 1); \ |
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if (rand > 0 && tmp > 0 && G_MAXINT32 - tmp <= rand) \ |
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tmp = G_MAXINT32; \ |
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else if (rand < 0 && tmp < 0 && G_MININT32 - tmp >= rand) \ |
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tmp = G_MININT32; \ |
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else \ |
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tmp += rand; |
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180 |
|
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#define INIT_DITHER_TPDF_F() \ |
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gdouble dither = 1.0/(1U<<(32 - scale)); |
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183 |
|
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#define ADD_DITHER_TPDF_F() \ |
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tmp += gst_fast_random_double_range (- dither, dither) \ |
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+ gst_fast_random_double_range (- dither, dither); |
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187 |
|
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#define INIT_DITHER_TPDF_HF_I() \ |
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189 |
gint32 rand; \ |
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gint32 dither = (1<<(scale-1)); \ |
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gint32 *last_random = (gint32 *) ctx->last_random, tmp_rand; \ |
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bias = bias >> 1; |
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193 |
|
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#define ADD_DITHER_TPDF_HF_I() \ |
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tmp_rand = gst_fast_random_int32_range (bias - dither, \ |
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bias + dither); \ |
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rand = tmp_rand - last_random[chan_pos]; \ |
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last_random[chan_pos] = tmp_rand; \ |
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if (rand > 0 && tmp > 0 && G_MAXINT32 - tmp <= rand) \ |
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tmp = G_MAXINT32; \ |
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else if (rand < 0 && tmp < 0 && G_MININT32 - tmp >= rand) \ |
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tmp = G_MININT32; \ |
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else \ |
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tmp += rand; |
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|
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/* Like TPDF dither but the dither noise is oriented more to the |
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* higher frequencies */ |
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#define INIT_DITHER_TPDF_HF_F() \ |
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gdouble rand; \ |
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gdouble dither = 1.0/(1U<<(32 - scale)); \ |
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gdouble *last_random = (gdouble *) ctx->last_random, tmp_rand; |
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#define ADD_DITHER_TPDF_HF_F() \ |
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tmp_rand = gst_fast_random_double_range (- dither, dither); \ |
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rand = tmp_rand - last_random[chan_pos]; \ |
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last_random[chan_pos] = tmp_rand; \ |
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tmp += rand; |
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/* Noise shaping definitions. |
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* See http://en.wikipedia.org/wiki/Noise_shaping for explanations. */ |
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222 |
|
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|
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/* Simple error feedback: Just accumulate the dithering and quantization |
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* error and remove it from each sample. */ |
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|
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#define INIT_NS_ERROR_FEEDBACK() \ |
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gdouble orig; \ |
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gdouble *errors = ctx->error_buf; |
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|
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#define ADD_NS_ERROR_FEEDBACK() \ |
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orig = tmp; \ |
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tmp -= errors[chan_pos]; |
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|
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#define UPDATE_ERROR_ERROR_FEEDBACK() \ |
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errors[chan_pos] += (*dst)/factor - orig; |
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237 |
|
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/* Same as error feedback but also add 1/2 of the previous error value. |
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* This moves the noise a bit more into the higher frequencies. */ |
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|
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#define INIT_NS_SIMPLE() \ |
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gdouble orig; \ |
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gdouble *errors = ctx->error_buf, cur_error; |
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|
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#define ADD_NS_SIMPLE() \ |
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cur_error = errors[chan_pos*2] - 0.5 * errors[chan_pos*2 + 1]; \ |
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tmp -= cur_error; \ |
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orig = tmp; |
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|
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#define UPDATE_ERROR_SIMPLE() \ |
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errors[chan_pos*2 + 1] = errors[chan_pos*2]; \ |
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errors[chan_pos*2] = (*dst)/factor - orig; |
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|
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|
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/* Noise shaping coefficients from[1], moves most power of the |
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* error noise into inaudible frequency ranges. |
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* |
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* [1] |
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* "Minimally Audible Noise Shaping", Stanley P. Lipshitz, |
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* John Vanderkooy, and Robert A. Wannamaker, |
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* J. Audio Eng. Soc., Vol. 39, No. 11, November 1991. */ |
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|
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static const gdouble ns_medium_coeffs[] = { |
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2.033, -2.165, 1.959, -1.590, 0.6149 |
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}; |
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|
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#define INIT_NS_MEDIUM() \ |
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gdouble orig; \ |
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gdouble *errors = ctx->error_buf, cur_error; \ |
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int j; |
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|
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#define ADD_NS_MEDIUM() \ |
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cur_error = 0.0; \ |
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for (j = 0; j < 5; j++) \ |
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cur_error += errors[chan_pos*5 + j] * ns_medium_coeffs[j]; \ |
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tmp -= cur_error; \ |
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orig = tmp; |
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|
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#define UPDATE_ERROR_MEDIUM() \ |
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for (j = 4; j > 0; j--) \ |
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errors[chan_pos*5 + j] = errors[chan_pos*5 + j-1]; \ |
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errors[chan_pos*5] = (*dst)/factor - orig; |
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|
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/* Noise shaping coefficients by David Schleef, moves most power of the |
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* error noise into inaudible frequency ranges */ |
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|
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static const gdouble ns_high_coeffs[] = { |
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2.08484, -2.92975, 3.27918, -3.31399, 2.61339, -1.72008, 0.876066, -0.340122 |
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}; |
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|
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#define INIT_NS_HIGH() \ |
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gdouble orig; \ |
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gdouble *errors = ctx->error_buf, cur_error; \ |
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int j; |
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|
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#define ADD_NS_HIGH() \ |
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cur_error = 0.0; \ |
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for (j = 0; j < 8; j++) \ |
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cur_error += errors[chan_pos + j] * ns_high_coeffs[j]; \ |
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tmp -= cur_error; \ |
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orig = tmp; |
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|
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#define UPDATE_ERROR_HIGH() \ |
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for (j = 7; j > 0; j--) \ |
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errors[chan_pos + j] = errors[chan_pos + j-1]; \ |
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errors[chan_pos] = (*dst)/factor - orig; |
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|
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diff
changeset
|
308 |
|
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diff
changeset
|
309 |
MAKE_QUANTIZE_FUNC_I (signed_none_none, NONE_FUNC, NONE_FUNC, ROUND); |
0e761a78d257
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parents:
diff
changeset
|
310 |
MAKE_QUANTIZE_FUNC_I (signed_rpdf_none, INIT_DITHER_RPDF_I, ADD_DITHER_RPDF_I, |
0e761a78d257
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diff
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|
311 |
NONE_FUNC); |
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parents:
diff
changeset
|
312 |
MAKE_QUANTIZE_FUNC_I (signed_tpdf_none, INIT_DITHER_TPDF_I, ADD_DITHER_TPDF_I, |
0e761a78d257
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diff
changeset
|
313 |
NONE_FUNC); |
0e761a78d257
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diff
changeset
|
314 |
MAKE_QUANTIZE_FUNC_I (signed_tpdf_hf_none, INIT_DITHER_TPDF_HF_I, |
0e761a78d257
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parents:
diff
changeset
|
315 |
ADD_DITHER_TPDF_HF_I, NONE_FUNC); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
316 |
|
0e761a78d257
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diff
changeset
|
317 |
MAKE_QUANTIZE_FUNC_I (unsigned_none_none, NONE_FUNC, NONE_FUNC, ROUND); |
0e761a78d257
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parents:
diff
changeset
|
318 |
MAKE_QUANTIZE_FUNC_I (unsigned_rpdf_none, INIT_DITHER_RPDF_I, ADD_DITHER_RPDF_I, |
0e761a78d257
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parents:
diff
changeset
|
319 |
NONE_FUNC); |
0e761a78d257
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parents:
diff
changeset
|
320 |
MAKE_QUANTIZE_FUNC_I (unsigned_tpdf_none, INIT_DITHER_TPDF_I, ADD_DITHER_TPDF_I, |
0e761a78d257
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parents:
diff
changeset
|
321 |
NONE_FUNC); |
0e761a78d257
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parents:
diff
changeset
|
322 |
MAKE_QUANTIZE_FUNC_I (unsigned_tpdf_hf_none, INIT_DITHER_TPDF_HF_I, |
0e761a78d257
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parents:
diff
changeset
|
323 |
ADD_DITHER_TPDF_HF_I, NONE_FUNC); |
0e761a78d257
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parents:
diff
changeset
|
324 |
|
0e761a78d257
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diff
changeset
|
325 |
MAKE_QUANTIZE_FUNC_F (float_none_error_feedback, NONE_FUNC, |
0e761a78d257
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diff
changeset
|
326 |
INIT_NS_ERROR_FEEDBACK, ADD_NS_ERROR_FEEDBACK, NONE_FUNC, |
0e761a78d257
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diff
changeset
|
327 |
UPDATE_ERROR_ERROR_FEEDBACK); |
0e761a78d257
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parents:
diff
changeset
|
328 |
MAKE_QUANTIZE_FUNC_F (float_none_simple, NONE_FUNC, INIT_NS_SIMPLE, |
0e761a78d257
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parents:
diff
changeset
|
329 |
ADD_NS_SIMPLE, NONE_FUNC, UPDATE_ERROR_SIMPLE); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
330 |
MAKE_QUANTIZE_FUNC_F (float_none_medium, NONE_FUNC, INIT_NS_MEDIUM, |
0e761a78d257
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parents:
diff
changeset
|
331 |
ADD_NS_MEDIUM, NONE_FUNC, UPDATE_ERROR_MEDIUM); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
332 |
MAKE_QUANTIZE_FUNC_F (float_none_high, NONE_FUNC, INIT_NS_HIGH, ADD_NS_HIGH, |
0e761a78d257
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parents:
diff
changeset
|
333 |
NONE_FUNC, UPDATE_ERROR_HIGH); |
0e761a78d257
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parents:
diff
changeset
|
334 |
|
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
335 |
MAKE_QUANTIZE_FUNC_F (float_rpdf_error_feedback, INIT_DITHER_RPDF_F, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
336 |
INIT_NS_ERROR_FEEDBACK, ADD_NS_ERROR_FEEDBACK, ADD_DITHER_RPDF_F, |
0e761a78d257
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parents:
diff
changeset
|
337 |
UPDATE_ERROR_ERROR_FEEDBACK); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
338 |
MAKE_QUANTIZE_FUNC_F (float_rpdf_simple, INIT_DITHER_RPDF_F, INIT_NS_SIMPLE, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
339 |
ADD_NS_SIMPLE, ADD_DITHER_RPDF_F, UPDATE_ERROR_SIMPLE); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
340 |
MAKE_QUANTIZE_FUNC_F (float_rpdf_medium, INIT_DITHER_RPDF_F, INIT_NS_MEDIUM, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
341 |
ADD_NS_MEDIUM, ADD_DITHER_RPDF_F, UPDATE_ERROR_MEDIUM); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
342 |
MAKE_QUANTIZE_FUNC_F (float_rpdf_high, INIT_DITHER_RPDF_F, INIT_NS_HIGH, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
343 |
ADD_NS_HIGH, ADD_DITHER_RPDF_F, UPDATE_ERROR_HIGH); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
344 |
|
0e761a78d257
Revision: 200949
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diff
changeset
|
345 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_error_feedback, INIT_DITHER_TPDF_F, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
346 |
INIT_NS_ERROR_FEEDBACK, ADD_NS_ERROR_FEEDBACK, ADD_DITHER_TPDF_F, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
347 |
UPDATE_ERROR_ERROR_FEEDBACK); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
348 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_simple, INIT_DITHER_TPDF_F, INIT_NS_SIMPLE, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
349 |
ADD_NS_SIMPLE, ADD_DITHER_TPDF_F, UPDATE_ERROR_SIMPLE); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
350 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_medium, INIT_DITHER_TPDF_F, INIT_NS_MEDIUM, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
351 |
ADD_NS_MEDIUM, ADD_DITHER_TPDF_F, UPDATE_ERROR_MEDIUM); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_high, INIT_DITHER_TPDF_F, INIT_NS_HIGH, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
353 |
ADD_NS_HIGH, ADD_DITHER_TPDF_F, UPDATE_ERROR_HIGH); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
354 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_hf_error_feedback, INIT_DITHER_TPDF_HF_F, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
INIT_NS_ERROR_FEEDBACK, ADD_NS_ERROR_FEEDBACK, ADD_DITHER_TPDF_HF_F, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
357 |
UPDATE_ERROR_ERROR_FEEDBACK); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_hf_simple, INIT_DITHER_TPDF_HF_F, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
INIT_NS_SIMPLE, ADD_NS_SIMPLE, ADD_DITHER_TPDF_HF_F, UPDATE_ERROR_SIMPLE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_hf_medium, INIT_DITHER_TPDF_HF_F, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
INIT_NS_MEDIUM, ADD_NS_MEDIUM, ADD_DITHER_TPDF_HF_F, UPDATE_ERROR_MEDIUM); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
MAKE_QUANTIZE_FUNC_F (float_tpdf_hf_high, INIT_DITHER_TPDF_HF_F, INIT_NS_HIGH, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
ADD_NS_HIGH, ADD_DITHER_TPDF_HF_F, UPDATE_ERROR_HIGH); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
364 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
static AudioConvertQuantize quantize_funcs[] = { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (signed_none_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (signed_rpdf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (signed_tpdf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (signed_tpdf_hf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (unsigned_none_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (unsigned_rpdf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (unsigned_tpdf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (unsigned_tpdf_hf_none), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_none_error_feedback), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_none_simple), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_none_medium), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_none_high), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_rpdf_error_feedback), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_rpdf_simple), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_rpdf_medium), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_rpdf_high), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_error_feedback), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_simple), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_medium), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_high), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_hf_error_feedback), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_hf_simple), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_hf_medium), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
(AudioConvertQuantize) MAKE_QUANTIZE_FUNC_NAME (float_tpdf_hf_high) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
}; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
gst_audio_quantize_setup_noise_shaping (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
switch (ctx->ns) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
case NOISE_SHAPING_HIGH:{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
ctx->error_buf = g_new0 (gdouble, ctx->out.channels * 8); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
case NOISE_SHAPING_MEDIUM:{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
ctx->error_buf = g_new0 (gdouble, ctx->out.channels * 5); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
case NOISE_SHAPING_SIMPLE:{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
ctx->error_buf = g_new0 (gdouble, ctx->out.channels * 2); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
case NOISE_SHAPING_ERROR_FEEDBACK: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
ctx->error_buf = g_new0 (gdouble, ctx->out.channels); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
case NOISE_SHAPING_NONE: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
default: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
ctx->error_buf = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
return; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
gst_audio_quantize_free_noise_shaping (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
switch (ctx->ns) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
case NOISE_SHAPING_HIGH: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
case NOISE_SHAPING_MEDIUM: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
case NOISE_SHAPING_SIMPLE: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
case NOISE_SHAPING_ERROR_FEEDBACK: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
case NOISE_SHAPING_NONE: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
default: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
g_free (ctx->error_buf); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
ctx->error_buf = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
return; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
gst_audio_quantize_setup_dither (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
switch (ctx->dither) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
case DITHER_TPDF_HF: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
if (ctx->out.is_int) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
ctx->last_random = g_new0 (gint32, ctx->out.channels); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
else |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
ctx->last_random = g_new0 (gdouble, ctx->out.channels); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
case DITHER_RPDF: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
case DITHER_TPDF: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
ctx->last_random = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
case DITHER_NONE: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
default: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
ctx->last_random = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
return; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
gst_audio_quantize_free_dither (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
g_free (ctx->last_random); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
return; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
gst_audio_quantize_setup_quantize_func (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
gint index = 0; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
if (!ctx->out.is_int) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
ctx->quantize = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
return; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
if (ctx->ns == NOISE_SHAPING_NONE) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
index += ctx->dither; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
index += (ctx->out.sign) ? 0 : 4; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
} else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
index += 8 + (4 * ctx->dither); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
index += ctx->ns - 1; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
ctx->quantize = quantize_funcs[index]; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
gst_audio_quantize_setup (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
gst_audio_quantize_setup_dither (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
gst_audio_quantize_setup_noise_shaping (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
gst_audio_quantize_setup_quantize_func (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
#endif |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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504 |
|
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
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|
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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506 |
void |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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gst_audio_quantize_free (AudioConvertCtx * ctx) |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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508 |
{ |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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509 |
gst_audio_quantize_free_dither (ctx); |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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gst_audio_quantize_free_noise_shaping (ctx); |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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511 |
} |