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) 2005 Wim Taymans <wim at fluendo dot com> |
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* |
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* audioconvert.c: Convert audio to different audio formats automatically |
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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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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <math.h> |
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#include <string.h> |
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#include "gstchannelmix.h" |
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#include "gstaudioquantize.h" |
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#include "audioconvert.h" |
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#include "gst/floatcast/floatcast.h" |
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/* sign bit in the intermediate format */ |
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#define SIGNED (1U<<31) |
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/*** |
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* unpack code |
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*/ |
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#define MAKE_UNPACK_FUNC_NAME(name) \ |
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audio_convert_unpack_##name |
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/* unpack from integer to signed integer 32 */ |
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#define MAKE_UNPACK_FUNC_II(name, stride, sign, READ_FUNC) \ |
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static void \ |
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MAKE_UNPACK_FUNC_NAME (name) (guint8 *src, gint32 *dst, \ |
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gint scale, gint count) \ |
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{ \ |
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for (;count; count--) { \ |
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*dst++ = (((gint32) READ_FUNC (src)) << scale) ^ (sign); \ |
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src+=stride; \ |
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} \ |
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} |
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/* unpack from float to signed integer 32 */ |
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#define MAKE_UNPACK_FUNC_FI(name, type, READ_FUNC) \ |
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static void \ |
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MAKE_UNPACK_FUNC_NAME (name) (type * src, gint32 * dst, gint s, gint count) \ |
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{ \ |
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gdouble temp; \ |
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\ |
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for (; count; count--) { \ |
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/* blow up to 32 bit */ \ |
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temp = floor ((READ_FUNC (*src++) * 2147483647.0) + 0.5); \ |
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*dst++ = (gint32) CLAMP (temp, G_MININT32, G_MAXINT32); \ |
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} \ |
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} |
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/* unpack from float to float 64 (double) */ |
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#define MAKE_UNPACK_FUNC_FF(name, type, FUNC) \ |
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static void \ |
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MAKE_UNPACK_FUNC_NAME (name) (type * src, gdouble * dst, gint s, \ |
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gint count) \ |
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{ \ |
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for (; count; count--) \ |
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*dst++ = (gdouble) FUNC (*src++); \ |
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} |
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/* unpack from int to float 64 (double) */ |
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#define MAKE_UNPACK_FUNC_IF(name, stride, sign, READ_FUNC) \ |
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static void \ |
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MAKE_UNPACK_FUNC_NAME (name) (guint8 * src, gdouble * dst, gint scale, \ |
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gint count) \ |
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{ \ |
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gdouble tmp; \ |
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for (; count; count--) { \ |
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tmp = (gdouble) ((((gint32) READ_FUNC (src)) << scale) ^ (sign)); \ |
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*dst++ = tmp * (1.0 / 2147483647.0); \ |
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src += stride; \ |
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} \ |
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} |
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#define READ8(p) GST_READ_UINT8(p) |
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#define READ16_FROM_LE(p) GST_READ_UINT16_LE (p) |
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#define READ16_FROM_BE(p) GST_READ_UINT16_BE (p) |
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#define READ24_FROM_LE(p) (p[0] | (p[1] << 8) | (p[2] << 16)) |
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#define READ24_FROM_BE(p) (p[2] | (p[1] << 8) | (p[0] << 16)) |
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#define READ32_FROM_LE(p) GST_READ_UINT32_LE (p) |
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#define READ32_FROM_BE(p) GST_READ_UINT32_BE (p) |
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MAKE_UNPACK_FUNC_II (u8, 1, SIGNED, READ8); |
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MAKE_UNPACK_FUNC_II (s8, 1, 0, READ8); |
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MAKE_UNPACK_FUNC_II (u16_le, 2, SIGNED, READ16_FROM_LE); |
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MAKE_UNPACK_FUNC_II (s16_le, 2, 0, READ16_FROM_LE); |
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MAKE_UNPACK_FUNC_II (u16_be, 2, SIGNED, READ16_FROM_BE); |
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MAKE_UNPACK_FUNC_II (s16_be, 2, 0, READ16_FROM_BE); |
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MAKE_UNPACK_FUNC_II (u24_le, 3, SIGNED, READ24_FROM_LE); |
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MAKE_UNPACK_FUNC_II (s24_le, 3, 0, READ24_FROM_LE); |
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MAKE_UNPACK_FUNC_II (u24_be, 3, SIGNED, READ24_FROM_BE); |
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MAKE_UNPACK_FUNC_II (s24_be, 3, 0, READ24_FROM_BE); |
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MAKE_UNPACK_FUNC_II (u32_le, 4, SIGNED, READ32_FROM_LE); |
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MAKE_UNPACK_FUNC_II (s32_le, 4, 0, READ32_FROM_LE); |
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MAKE_UNPACK_FUNC_II (u32_be, 4, SIGNED, READ32_FROM_BE); |
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MAKE_UNPACK_FUNC_II (s32_be, 4, 0, READ32_FROM_BE); |
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MAKE_UNPACK_FUNC_FI (float_le, gfloat, GFLOAT_FROM_LE); |
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MAKE_UNPACK_FUNC_FI (float_be, gfloat, GFLOAT_FROM_BE); |
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MAKE_UNPACK_FUNC_FI (double_le, gdouble, GDOUBLE_FROM_LE); |
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MAKE_UNPACK_FUNC_FI (double_be, gdouble, GDOUBLE_FROM_BE); |
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MAKE_UNPACK_FUNC_FF (float_hq_le, gfloat, GFLOAT_FROM_LE); |
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MAKE_UNPACK_FUNC_FF (float_hq_be, gfloat, GFLOAT_FROM_BE); |
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MAKE_UNPACK_FUNC_FF (double_hq_le, gdouble, GDOUBLE_FROM_LE); |
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MAKE_UNPACK_FUNC_FF (double_hq_be, gdouble, GDOUBLE_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (u8_float, 1, SIGNED, READ8); |
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MAKE_UNPACK_FUNC_IF (s8_float, 1, 0, READ8); |
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MAKE_UNPACK_FUNC_IF (u16_le_float, 2, SIGNED, READ16_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (s16_le_float, 2, 0, READ16_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (u16_be_float, 2, SIGNED, READ16_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (s16_be_float, 2, 0, READ16_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (u24_le_float, 3, SIGNED, READ24_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (s24_le_float, 3, 0, READ24_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (u24_be_float, 3, SIGNED, READ24_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (s24_be_float, 3, 0, READ24_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (u32_le_float, 4, SIGNED, READ32_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (s32_le_float, 4, 0, READ32_FROM_LE); |
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MAKE_UNPACK_FUNC_IF (u32_be_float, 4, SIGNED, READ32_FROM_BE); |
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MAKE_UNPACK_FUNC_IF (s32_be_float, 4, 0, READ32_FROM_BE); |
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137 |
|
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/* One of the double_hq_* functions generated above is ineffecient, but it's |
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* never used anyway. The same is true for one of the s32_* functions. */ |
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140 |
|
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/*** |
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* packing code |
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*/ |
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#define MAKE_PACK_FUNC_NAME(name) \ |
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audio_convert_pack_##name |
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146 |
|
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/* |
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* These functions convert the signed 32 bit integers to the |
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* target format. For this to work the following steps are done: |
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* |
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* 1) If the output format is unsigned we will XOR the sign bit. This |
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* will do the same as if we add 1<<31. |
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* 2) Afterwards we shift to the target depth. It's necessary to left-shift |
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* on signed values here to get arithmetical shifting. |
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* 3) This is then written into our target array by the corresponding write |
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* function for the target width. |
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*/ |
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158 |
|
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/* pack from signed integer 32 to integer */ |
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#define MAKE_PACK_FUNC_II(name, stride, sign, WRITE_FUNC) \ |
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static void \ |
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MAKE_PACK_FUNC_NAME (name) (gint32 *src, guint8 * dst, \ |
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gint scale, gint count) \ |
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{ \ |
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gint32 tmp; \ |
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for (;count; count--) { \ |
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tmp = (*src++ ^ (sign)) >> scale; \ |
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WRITE_FUNC (dst, tmp); \ |
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dst += stride; \ |
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} \ |
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} |
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172 |
|
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/* pack from signed integer 32 to float */ |
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#define MAKE_PACK_FUNC_IF(name, type, FUNC) \ |
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static void \ |
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MAKE_PACK_FUNC_NAME (name) (gint32 * src, type * dst, gint scale, \ |
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gint count) \ |
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178 |
{ \ |
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for (; count; count--) \ |
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*dst++ = FUNC ((type) ((*src++) * (1.0 / 2147483647.0))); \ |
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} |
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182 |
|
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/* pack from float 64 (double) to float */ |
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#define MAKE_PACK_FUNC_FF(name, type, FUNC) \ |
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static void \ |
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MAKE_PACK_FUNC_NAME (name) (gdouble * src, type * dst, gint s, \ |
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gint count) \ |
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188 |
{ \ |
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for (; count; count--) \ |
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*dst++ = FUNC ((type) (*src++)); \ |
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} |
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192 |
|
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/* pack from float 64 (double) to signed int. |
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* the floats are already in the correct range. Only a cast is needed. |
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*/ |
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#define MAKE_PACK_FUNC_FI_S(name, stride, WRITE_FUNC) \ |
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static void \ |
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MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \ |
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gint count) \ |
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{ \ |
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gint32 tmp; \ |
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for (; count; count--) { \ |
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tmp = (gint32) (*src); \ |
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WRITE_FUNC (dst, tmp); \ |
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src++; \ |
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dst += stride; \ |
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} \ |
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} |
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209 |
|
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/* pack from float 64 (double) to unsigned int. |
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* the floats are already in the correct range. Only a cast is needed |
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* and an addition of 2^(target_depth-1) to get in the correct unsigned |
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* range. */ |
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#define MAKE_PACK_FUNC_FI_U(name, stride, WRITE_FUNC) \ |
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static void \ |
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MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \ |
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gint count) \ |
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{ \ |
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guint32 tmp; \ |
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gdouble limit = (1U<<(32-scale-1)); \ |
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for (; count; count--) { \ |
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tmp = (guint32) (*src + limit); \ |
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WRITE_FUNC (dst, tmp); \ |
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src++; \ |
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dst += stride; \ |
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} \ |
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} |
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228 |
|
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#define WRITE8(p, v) GST_WRITE_UINT8 (p, v) |
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#define WRITE16_TO_LE(p,v) GST_WRITE_UINT16_LE (p, (guint16)(v)) |
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#define WRITE16_TO_BE(p,v) GST_WRITE_UINT16_BE (p, (guint16)(v)) |
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#define WRITE24_TO_LE(p,v) p[0] = v & 0xff; p[1] = (v >> 8) & 0xff; p[2] = (v >> 16) & 0xff |
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#define WRITE24_TO_BE(p,v) p[2] = v & 0xff; p[1] = (v >> 8) & 0xff; p[0] = (v >> 16) & 0xff |
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#define WRITE32_TO_LE(p,v) GST_WRITE_UINT32_LE (p, (guint32)(v)) |
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#define WRITE32_TO_BE(p,v) GST_WRITE_UINT32_BE (p, (guint32)(v)) |
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236 |
|
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MAKE_PACK_FUNC_II (u8, 1, SIGNED, WRITE8); |
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MAKE_PACK_FUNC_II (s8, 1, 0, WRITE8); |
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MAKE_PACK_FUNC_II (u16_le, 2, SIGNED, WRITE16_TO_LE); |
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MAKE_PACK_FUNC_II (s16_le, 2, 0, WRITE16_TO_LE); |
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MAKE_PACK_FUNC_II (u16_be, 2, SIGNED, WRITE16_TO_BE); |
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MAKE_PACK_FUNC_II (s16_be, 2, 0, WRITE16_TO_BE); |
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MAKE_PACK_FUNC_II (u24_le, 3, SIGNED, WRITE24_TO_LE); |
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MAKE_PACK_FUNC_II (s24_le, 3, 0, WRITE24_TO_LE); |
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MAKE_PACK_FUNC_II (u24_be, 3, SIGNED, WRITE24_TO_BE); |
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MAKE_PACK_FUNC_II (s24_be, 3, 0, WRITE24_TO_BE); |
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MAKE_PACK_FUNC_II (u32_le, 4, SIGNED, WRITE32_TO_LE); |
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MAKE_PACK_FUNC_II (s32_le, 4, 0, WRITE32_TO_LE); |
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MAKE_PACK_FUNC_II (u32_be, 4, SIGNED, WRITE32_TO_BE); |
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MAKE_PACK_FUNC_II (s32_be, 4, 0, WRITE32_TO_BE); |
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MAKE_PACK_FUNC_IF (float_le, gfloat, GFLOAT_TO_LE); |
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MAKE_PACK_FUNC_IF (float_be, gfloat, GFLOAT_TO_BE); |
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MAKE_PACK_FUNC_IF (double_le, gdouble, GDOUBLE_TO_LE); |
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MAKE_PACK_FUNC_IF (double_be, gdouble, GDOUBLE_TO_BE); |
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MAKE_PACK_FUNC_FF (float_hq_le, gfloat, GFLOAT_TO_LE); |
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MAKE_PACK_FUNC_FF (float_hq_be, gfloat, GFLOAT_TO_BE); |
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MAKE_PACK_FUNC_FI_U (u8_float, 1, WRITE8); |
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MAKE_PACK_FUNC_FI_S (s8_float, 1, WRITE8); |
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MAKE_PACK_FUNC_FI_U (u16_le_float, 2, WRITE16_TO_LE); |
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MAKE_PACK_FUNC_FI_S (s16_le_float, 2, WRITE16_TO_LE); |
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MAKE_PACK_FUNC_FI_U (u16_be_float, 2, WRITE16_TO_BE); |
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MAKE_PACK_FUNC_FI_S (s16_be_float, 2, WRITE16_TO_BE); |
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MAKE_PACK_FUNC_FI_U (u24_le_float, 3, WRITE24_TO_LE); |
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MAKE_PACK_FUNC_FI_S (s24_le_float, 3, WRITE24_TO_LE); |
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MAKE_PACK_FUNC_FI_U (u24_be_float, 3, WRITE24_TO_BE); |
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MAKE_PACK_FUNC_FI_S (s24_be_float, 3, WRITE24_TO_BE); |
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MAKE_PACK_FUNC_FI_U (u32_le_float, 4, WRITE32_TO_LE); |
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MAKE_PACK_FUNC_FI_S (s32_le_float, 4, WRITE32_TO_LE); |
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MAKE_PACK_FUNC_FI_U (u32_be_float, 4, WRITE32_TO_BE); |
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MAKE_PACK_FUNC_FI_S (s32_be_float, 4, WRITE32_TO_BE); |
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271 |
|
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/* For double_hq, packing and unpacking is the same, so we reuse the unpacking |
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* functions here. */ |
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#define audio_convert_pack_double_hq_le MAKE_UNPACK_FUNC_NAME (double_hq_le) |
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#define audio_convert_pack_double_hq_be MAKE_UNPACK_FUNC_NAME (double_hq_be) |
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|
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static AudioConvertUnpack unpack_funcs[] = { |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_be), |
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290 |
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_hq_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_hq_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_hq_le), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_hq_be), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_be_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_be_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_be_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_be_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_le_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_be_float), |
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(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_be_float), |
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}; |
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319 |
|
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static AudioConvertPack pack_funcs[] = { |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (double_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_hq_le), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_hq_be), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_be_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_be_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_be_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_be_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_le_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_be_float), |
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(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_be_float), |
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361 |
}; |
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|
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#define DOUBLE_INTERMEDIATE_FORMAT(ctx) \ |
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((!ctx->in.is_int && !ctx->out.is_int) || (ctx->ns != NOISE_SHAPING_NONE)) |
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|
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static gint |
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audio_convert_get_func_index (AudioConvertCtx * ctx, AudioConvertFmt * fmt) |
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{ |
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gint index = 0; |
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|
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if (fmt->is_int) { |
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index += (fmt->width / 8 - 1) * 4; |
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index += fmt->endianness == G_LITTLE_ENDIAN ? 0 : 2; |
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index += fmt->sign ? 1 : 0; |
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index += (ctx->ns == NOISE_SHAPING_NONE) ? 0 : 24; |
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} else { |
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/* this is float/double */ |
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index = 16; |
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index += (fmt->width == 32) ? 0 : 2; |
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index += (fmt->endianness == G_LITTLE_ENDIAN) ? 0 : 1; |
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index += (DOUBLE_INTERMEDIATE_FORMAT (ctx)) ? 4 : 0; |
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382 |
} |
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383 |
|
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384 |
return index; |
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|
385 |
} |
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|
386 |
|
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|
387 |
static inline gboolean |
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|
388 |
check_default (AudioConvertCtx * ctx, AudioConvertFmt * fmt) |
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|
389 |
{ |
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|
390 |
if (!DOUBLE_INTERMEDIATE_FORMAT (ctx)) { |
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|
391 |
return (fmt->width == 32 && fmt->depth == 32 && |
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|
392 |
fmt->endianness == G_BYTE_ORDER && fmt->sign == TRUE); |
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|
393 |
} else { |
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|
394 |
return (fmt->width == 64 && fmt->endianness == G_BYTE_ORDER); |
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|
395 |
} |
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|
396 |
} |
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|
397 |
#ifdef __SYMBIAN32__ |
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398 |
EXPORT_C |
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|
399 |
#endif |
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|
400 |
|
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|
401 |
|
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|
402 |
gboolean |
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|
403 |
audio_convert_clean_fmt (AudioConvertFmt * fmt) |
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|
404 |
{ |
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|
405 |
g_return_val_if_fail (fmt != NULL, FALSE); |
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|
406 |
|
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|
407 |
g_free (fmt->pos); |
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|
408 |
fmt->pos = NULL; |
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|
409 |
|
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410 |
return TRUE; |
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411 |
} |
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412 |
#ifdef __SYMBIAN32__ |
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413 |
EXPORT_C |
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414 |
#endif |
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|
415 |
|
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|
416 |
|
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|
417 |
|
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418 |
gboolean |
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|
419 |
audio_convert_prepare_context (AudioConvertCtx * ctx, AudioConvertFmt * in, |
29
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420 |
AudioConvertFmt * out, GstAudioConvertDithering dither, |
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diff
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|
421 |
GstAudioConvertNoiseShaping ns) |
0
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|
422 |
{ |
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423 |
gint idx_in, idx_out; |
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|
424 |
|
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|
425 |
g_return_val_if_fail (ctx != NULL, FALSE); |
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|
426 |
g_return_val_if_fail (in != NULL, FALSE); |
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|
427 |
g_return_val_if_fail (out != NULL, FALSE); |
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|
428 |
|
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|
429 |
/* first clean the existing context */ |
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|
430 |
audio_convert_clean_context (ctx); |
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|
431 |
|
29
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|
432 |
g_return_val_if_fail (in->unpositioned_layout == out->unpositioned_layout, |
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diff
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|
433 |
FALSE); |
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diff
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|
434 |
|
0
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|
435 |
ctx->in = *in; |
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|
436 |
ctx->out = *out; |
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|
437 |
|
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|
438 |
/* Don't dither or apply noise shaping if out depth is bigger than 20 bits |
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|
439 |
* as DA converters only can do a SNR up to 20 bits in reality. |
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|
440 |
* Also don't dither or apply noise shaping if target depth is larger than |
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|
441 |
* source depth. */ |
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|
442 |
if (ctx->out.depth <= 20 && (!ctx->in.is_int |
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|
443 |
|| ctx->in.depth >= ctx->out.depth)) { |
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|
444 |
ctx->dither = dither; |
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|
445 |
ctx->ns = ns; |
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|
446 |
} else { |
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|
447 |
ctx->dither = DITHER_NONE; |
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|
448 |
ctx->ns = NOISE_SHAPING_NONE; |
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|
449 |
} |
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|
450 |
|
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Revision: 200949
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|
451 |
/* Use simple error feedback when output sample rate is smaller than |
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|
452 |
* 32000 as the other methods might move the noise to audible ranges */ |
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|
453 |
if (ctx->ns > NOISE_SHAPING_ERROR_FEEDBACK && ctx->out.rate < 32000) |
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|
454 |
ctx->ns = NOISE_SHAPING_ERROR_FEEDBACK; |
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|
455 |
|
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|
456 |
gst_channel_mix_setup_matrix (ctx); |
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|
457 |
|
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|
458 |
idx_in = audio_convert_get_func_index (ctx, in); |
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|
459 |
ctx->unpack = unpack_funcs[idx_in]; |
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|
460 |
|
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|
461 |
idx_out = audio_convert_get_func_index (ctx, out); |
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|
462 |
ctx->pack = pack_funcs[idx_out]; |
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|
463 |
|
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|
464 |
/* if both formats are float/double or we use noise shaping use double as |
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|
465 |
* intermediate format and and switch mixing */ |
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|
466 |
if (!DOUBLE_INTERMEDIATE_FORMAT (ctx)) { |
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|
467 |
GST_INFO ("use int mixing"); |
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|
468 |
ctx->channel_mix = (AudioConvertMix) gst_channel_mix_mix_int; |
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|
469 |
} else { |
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|
470 |
GST_INFO ("use float mixing"); |
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|
471 |
ctx->channel_mix = (AudioConvertMix) gst_channel_mix_mix_float; |
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|
472 |
} |
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|
473 |
GST_INFO ("unitsizes: %d -> %d", in->unit_size, out->unit_size); |
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|
474 |
|
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Revision: 200949
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|
475 |
/* check if input is in default format */ |
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|
476 |
ctx->in_default = check_default (ctx, in); |
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Revision: 200949
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|
477 |
/* check if channel mixer is passthrough */ |
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|
478 |
ctx->mix_passthrough = gst_channel_mix_passthrough (ctx); |
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|
479 |
/* check if output is in default format */ |
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|
480 |
ctx->out_default = check_default (ctx, out); |
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diff
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|
481 |
|
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Revision: 200949
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diff
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|
482 |
GST_INFO ("in default %d, mix passthrough %d, out default %d", |
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Revision: 200949
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parents:
diff
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|
483 |
ctx->in_default, ctx->mix_passthrough, ctx->out_default); |
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diff
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|
484 |
|
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Revision: 200949
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|
485 |
ctx->in_scale = (in->is_int) ? (32 - in->depth) : 0; |
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|
486 |
ctx->out_scale = (out->is_int) ? (32 - out->depth) : 0; |
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|
487 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
gst_audio_quantize_setup (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
return TRUE; |
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 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
audio_convert_clean_context (AudioConvertCtx * ctx) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
g_return_val_if_fail (ctx != NULL, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
gst_audio_quantize_free (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
audio_convert_clean_fmt (&ctx->in); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
audio_convert_clean_fmt (&ctx->out); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
gst_channel_mix_unset_matrix (ctx); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
g_free (ctx->tmpbuf); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
ctx->tmpbuf = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
ctx->tmpbufsize = 0; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
audio_convert_get_sizes (AudioConvertCtx * ctx, gint samples, gint * srcsize, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
gint * dstsize) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
g_return_val_if_fail (ctx != NULL, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
if (srcsize) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
*srcsize = samples * ctx->in.unit_size; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
if (dstsize) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
*dstsize = samples * ctx->out.unit_size; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
audio_convert_convert (AudioConvertCtx * ctx, gpointer src, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
538 |
gpointer dst, gint samples, gboolean src_writable) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
{ |
29
567bb019e3e3
Revision: 201010
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
540 |
guint insize, outsize, size; |
0
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
gpointer outbuf, tmpbuf; |
29
567bb019e3e3
Revision: 201010
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
542 |
guint intemp = 0, outtemp = 0, biggest; |
0
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
g_return_val_if_fail (ctx != NULL, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
g_return_val_if_fail (src != NULL, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
g_return_val_if_fail (dst != NULL, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
g_return_val_if_fail (samples >= 0, FALSE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
if (samples == 0) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
insize = ctx->in.unit_size * samples; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
outsize = ctx->out.unit_size * samples; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
/* find biggest temp buffer size */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
size = (DOUBLE_INTERMEDIATE_FORMAT (ctx)) ? sizeof (gdouble) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
: sizeof (gint32); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
if (!ctx->in_default) |
29
567bb019e3e3
Revision: 201010
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
560 |
intemp = gst_util_uint64_scale (insize, size * 8, ctx->in.width); |
0
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
if (!ctx->mix_passthrough || !ctx->out_default) |
29
567bb019e3e3
Revision: 201010
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
562 |
outtemp = gst_util_uint64_scale (outsize, size * 8, ctx->out.width); |
0
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
biggest = MAX (intemp, outtemp); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
/* see if one of the buffers can be used as temp */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
if ((outsize >= biggest) && (ctx->out.unit_size <= size)) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
tmpbuf = dst; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
else if ((insize >= biggest) && src_writable && (ctx->in.unit_size >= size)) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
tmpbuf = src; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
if (biggest > ctx->tmpbufsize) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
572 |
ctx->tmpbuf = g_realloc (ctx->tmpbuf, biggest); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
573 |
ctx->tmpbufsize = biggest; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
575 |
tmpbuf = ctx->tmpbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
576 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
577 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
578 |
/* start conversion */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
579 |
if (!ctx->in_default) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
580 |
/* check if final conversion */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
if (!(ctx->out_default && ctx->mix_passthrough)) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
582 |
outbuf = tmpbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
583 |
else |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
584 |
outbuf = dst; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
585 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
586 |
/* unpack to default format */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
ctx->unpack (src, outbuf, ctx->in_scale, samples * ctx->in.channels); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
src = outbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
591 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
592 |
if (!ctx->mix_passthrough) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
593 |
/* check if final conversion */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
if (!ctx->out_default) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
outbuf = tmpbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
596 |
else |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
597 |
outbuf = dst; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
598 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
599 |
/* convert channels */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
600 |
ctx->channel_mix (ctx, src, outbuf, samples); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
src = outbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
/* we only need to quantize if output format is int */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
606 |
if (ctx->out.is_int) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
if (ctx->out_default) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
outbuf = dst; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
else |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
outbuf = tmpbuf; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
ctx->quantize (ctx, src, outbuf, samples); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
if (!ctx->out_default) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
/* pack default format into dst */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
616 |
ctx->pack (src, dst, ctx->out_scale, samples * ctx->out.channels); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
617 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
618 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
619 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
620 |
} |