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gstreamer/gst/audioconvert/audioconvert.c
Tim-Philipp Müller 754b22d7ee libs: remove unused floatcast header-only library 
There's no code whatsoever that uses these macros. If anyone
ever feels the need to resurrect them, we should add them to
gstutils.h in core or libgstaudio or so.
2011-09-23 21:18:47 +01:00

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/* GStreamer
* Copyright (C) 2005 Wim Taymans <wim at fluendo dot com>
*
* audioconvert.c: Convert audio to different audio formats automatically
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include <string.h>
#include "gstchannelmix.h"
#include "gstaudioquantize.h"
#include "audioconvert.h"
#include "gstaudioconvertorc.h"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define orc_audio_convert_unpack_u16_le orc_audio_convert_unpack_u16
#define orc_audio_convert_unpack_u16_be orc_audio_convert_unpack_u16_swap
#define orc_audio_convert_unpack_s16_le orc_audio_convert_unpack_s16
#define orc_audio_convert_unpack_s16_be orc_audio_convert_unpack_s16_swap
#define orc_audio_convert_unpack_u32_le orc_audio_convert_unpack_u32
#define orc_audio_convert_unpack_u32_be orc_audio_convert_unpack_u32_swap
#define orc_audio_convert_unpack_s32_le orc_audio_convert_unpack_s32
#define orc_audio_convert_unpack_s32_be orc_audio_convert_unpack_s32_swap
#define orc_audio_convert_unpack_float_le orc_audio_convert_unpack_float_s32
#define orc_audio_convert_unpack_float_be orc_audio_convert_unpack_float_s32_swap
#define orc_audio_convert_unpack_double_le orc_audio_convert_unpack_double_s32
#define orc_audio_convert_unpack_double_be orc_audio_convert_unpack_double_s32_swap
#define orc_audio_convert_unpack_float_hq_le orc_audio_convert_unpack_float_double
#define orc_audio_convert_unpack_float_hq_be orc_audio_convert_unpack_float_double_swap
#define orc_audio_convert_unpack_double_hq_le orc_audio_convert_unpack_double_double
#define orc_audio_convert_unpack_double_hq_be orc_audio_convert_unpack_double_double_swap
#define orc_audio_convert_unpack_u8_float orc_audio_convert_unpack_u8_double
#define orc_audio_convert_unpack_u16_le_float orc_audio_convert_unpack_u16_double
#define orc_audio_convert_unpack_u16_be_float orc_audio_convert_unpack_u16_double_swap
#define orc_audio_convert_unpack_u32_le_float orc_audio_convert_unpack_u32_double
#define orc_audio_convert_unpack_u32_be_float orc_audio_convert_unpack_u32_double_swap
#define orc_audio_convert_unpack_s8_float orc_audio_convert_unpack_s8_double
#define orc_audio_convert_unpack_s16_le_float orc_audio_convert_unpack_s16_double
#define orc_audio_convert_unpack_s16_be_float orc_audio_convert_unpack_s16_double_swap
#define orc_audio_convert_unpack_s32_le_float orc_audio_convert_unpack_s32_double
#define orc_audio_convert_unpack_s32_be_float orc_audio_convert_unpack_s32_double_swap
#define orc_audio_convert_pack_u8 orc_audio_convert_pack_u8
#define orc_audio_convert_pack_u16_le orc_audio_convert_pack_u16
#define orc_audio_convert_pack_u16_be orc_audio_convert_pack_u16_swap
#define orc_audio_convert_pack_s16_le orc_audio_convert_pack_s16
#define orc_audio_convert_pack_s16_be orc_audio_convert_pack_s16_swap
#define orc_audio_convert_pack_u32_le orc_audio_convert_pack_u32
#define orc_audio_convert_pack_u32_be orc_audio_convert_pack_u32_swap
#define orc_audio_convert_pack_s32_le orc_audio_convert_pack_s32
#define orc_audio_convert_pack_s32_be orc_audio_convert_pack_s32_swap
#define orc_audio_convert_pack_float_le orc_audio_convert_pack_s32_float
#define orc_audio_convert_pack_float_be orc_audio_convert_pack_s32_float_swap
#define orc_audio_convert_pack_double_le orc_audio_convert_pack_s32_double
#define orc_audio_convert_pack_double_be orc_audio_convert_pack_s32_double_swap
#define orc_audio_convert_pack_float_hq_le orc_audio_convert_pack_double_float
#define orc_audio_convert_pack_float_hq_be orc_audio_convert_pack_double_float_swap
#define orc_audio_convert_pack_s8_float orc_audio_convert_pack_double_s8
#define orc_audio_convert_pack_s16_le_float orc_audio_convert_pack_double_s16
#define orc_audio_convert_pack_s16_be_float orc_audio_convert_pack_double_s16_swap
#define orc_audio_convert_pack_s32_le_float orc_audio_convert_pack_double_s32
#define orc_audio_convert_pack_s32_be_float orc_audio_convert_pack_double_s32_swap
#define orc_audio_convert_pack_u8_float orc_audio_convert_pack_double_u8
#define orc_audio_convert_pack_u16_le_float orc_audio_convert_pack_double_u16
#define orc_audio_convert_pack_u16_be_float orc_audio_convert_pack_double_u16_swap
#define orc_audio_convert_pack_u32_le_float orc_audio_convert_pack_double_u32
#define orc_audio_convert_pack_u32_be_float orc_audio_convert_pack_double_u32_swap
#else
#define orc_audio_convert_unpack_u16_be orc_audio_convert_unpack_u16
#define orc_audio_convert_unpack_u16_le orc_audio_convert_unpack_u16_swap
#define orc_audio_convert_unpack_s16_be orc_audio_convert_unpack_s16
#define orc_audio_convert_unpack_s16_le orc_audio_convert_unpack_s16_swap
#define orc_audio_convert_unpack_u32_be orc_audio_convert_unpack_u32
#define orc_audio_convert_unpack_u32_le orc_audio_convert_unpack_u32_swap
#define orc_audio_convert_unpack_s32_be orc_audio_convert_unpack_s32
#define orc_audio_convert_unpack_s32_le orc_audio_convert_unpack_s32_swap
#define orc_audio_convert_unpack_float_be orc_audio_convert_unpack_float_s32
#define orc_audio_convert_unpack_float_le orc_audio_convert_unpack_float_s32_swap
#define orc_audio_convert_unpack_double_be orc_audio_convert_unpack_double_s32
#define orc_audio_convert_unpack_double_le orc_audio_convert_unpack_double_s32_swap
#define orc_audio_convert_unpack_float_hq_be orc_audio_convert_unpack_float_double
#define orc_audio_convert_unpack_float_hq_le orc_audio_convert_unpack_float_double_swap
#define orc_audio_convert_unpack_double_hq_be orc_audio_convert_unpack_double_double
#define orc_audio_convert_unpack_double_hq_le orc_audio_convert_unpack_double_double_swap
#define orc_audio_convert_unpack_u8_float orc_audio_convert_unpack_u8_double
#define orc_audio_convert_unpack_u16_be_float orc_audio_convert_unpack_u16_double
#define orc_audio_convert_unpack_u16_le_float orc_audio_convert_unpack_u16_double_swap
#define orc_audio_convert_unpack_u32_be_float orc_audio_convert_unpack_u32_double
#define orc_audio_convert_unpack_u32_le_float orc_audio_convert_unpack_u32_double_swap
#define orc_audio_convert_unpack_s8_float orc_audio_convert_unpack_s8_double
#define orc_audio_convert_unpack_s16_be_float orc_audio_convert_unpack_s16_double
#define orc_audio_convert_unpack_s16_le_float orc_audio_convert_unpack_s16_double_swap
#define orc_audio_convert_unpack_s32_be_float orc_audio_convert_unpack_s32_double
#define orc_audio_convert_unpack_s32_le_float orc_audio_convert_unpack_s32_double_swap
#define orc_audio_convert_pack_u8 orc_audio_convert_pack_u8
#define orc_audio_convert_pack_u16_be orc_audio_convert_pack_u16
#define orc_audio_convert_pack_u16_le orc_audio_convert_pack_u16_swap
#define orc_audio_convert_pack_s16_be orc_audio_convert_pack_s16
#define orc_audio_convert_pack_s16_le orc_audio_convert_pack_s16_swap
#define orc_audio_convert_pack_u32_be orc_audio_convert_pack_u32
#define orc_audio_convert_pack_u32_le orc_audio_convert_pack_u32_swap
#define orc_audio_convert_pack_s32_be orc_audio_convert_pack_s32
#define orc_audio_convert_pack_s32_le orc_audio_convert_pack_s32_swap
#define orc_audio_convert_pack_float_be orc_audio_convert_pack_s32_float
#define orc_audio_convert_pack_float_le orc_audio_convert_pack_s32_float_swap
#define orc_audio_convert_pack_double_be orc_audio_convert_pack_s32_double
#define orc_audio_convert_pack_double_le orc_audio_convert_pack_s32_double_swap
#define orc_audio_convert_pack_float_hq_be orc_audio_convert_pack_double_float
#define orc_audio_convert_pack_float_hq_le orc_audio_convert_pack_double_float_swap
#define orc_audio_convert_pack_s8_float orc_audio_convert_pack_double_s8
#define orc_audio_convert_pack_s16_be_float orc_audio_convert_pack_double_s16
#define orc_audio_convert_pack_s16_le_float orc_audio_convert_pack_double_s16_swap
#define orc_audio_convert_pack_s32_be_float orc_audio_convert_pack_double_s32
#define orc_audio_convert_pack_s32_le_float orc_audio_convert_pack_double_s32_swap
#define orc_audio_convert_pack_u8_float orc_audio_convert_pack_double_u8
#define orc_audio_convert_pack_u16_be_float orc_audio_convert_pack_double_u16
#define orc_audio_convert_pack_u16_le_float orc_audio_convert_pack_double_u16_swap
#define orc_audio_convert_pack_u32_be_float orc_audio_convert_pack_double_u32
#define orc_audio_convert_pack_u32_le_float orc_audio_convert_pack_double_u32_swap
#endif
/* sign bit in the intermediate format */
#define SIGNED (1U<<31)
/***
* unpack code
*/
#define MAKE_UNPACK_FUNC_NAME(name) \
audio_convert_unpack_##name
#define MAKE_ORC_UNPACK_FUNC_NAME(name) \
orc_audio_convert_unpack_##name
/* unpack from integer to signed integer 32 */
#define MAKE_UNPACK_FUNC_II(name, stride, sign, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (guint8 *src, gint32 *dst, \
gint scale, gint count) \
{ \
for (;count; count--) { \
*dst++ = (((gint32) READ_FUNC (src)) << scale) ^ (sign); \
src+=stride; \
} \
}
/* unpack from integer to signed integer 32 with orc */
#define MAKE_UNPACK_FUNC_ORC_II(name, stride, sign, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (guint8 *src, gint32 *dst, \
gint scale, gint count) \
{ \
MAKE_ORC_UNPACK_FUNC_NAME (name) (dst, src, scale, count); \
}
/* unpack from float to signed integer 32 */
#define MAKE_UNPACK_FUNC_FI(name, type, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (type * src, gint32 * dst, gint s, gint count) \
{ \
gdouble temp; \
\
for (; count; count--) { \
/* blow up to 32 bit */ \
temp = floor ((READ_FUNC (*src++) * 2147483647.0) + 0.5); \
*dst++ = (gint32) CLAMP (temp, G_MININT32, G_MAXINT32); \
} \
}
/* unpack from float to signed integer 32 with orc */
#define MAKE_UNPACK_FUNC_ORC_FI(name, type, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (type * src, gint32 * dst, gint s, gint count) \
{ \
MAKE_ORC_UNPACK_FUNC_NAME (name) ((guint32 *) dst, src, count); \
}
/* unpack from float to float 64 (double) */
#define MAKE_UNPACK_FUNC_FF(name, type, FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (type * src, gdouble * dst, gint s, \
gint count) \
{ \
for (; count; count--) \
*dst++ = (gdouble) FUNC (*src++); \
}
/* unpack from float to float 64 (double) with orc */
#define MAKE_UNPACK_FUNC_ORC_FF(name, type, FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (type * src, gdouble * dst, gint s, \
gint count) \
{ \
MAKE_ORC_UNPACK_FUNC_NAME (name) ((gdouble *) dst, src, count); \
}
/* unpack from int to float 64 (double) */
#define MAKE_UNPACK_FUNC_IF(name, stride, sign, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (guint8 * src, gdouble * dst, gint scale, \
gint count) \
{ \
gdouble tmp; \
for (; count; count--) { \
tmp = (gdouble) ((((gint32) READ_FUNC (src)) << scale) ^ (sign)); \
*dst++ = tmp * (1.0 / 2147483647.0); \
src += stride; \
} \
}
#define MAKE_UNPACK_FUNC_ORC_IF(name, stride, sign, READ_FUNC) \
static void \
MAKE_UNPACK_FUNC_NAME (name) (guint8 *src, gdouble *dst, \
gint scale, gint count) \
{ \
MAKE_ORC_UNPACK_FUNC_NAME (name) (dst, src, scale, count); \
}
#define READ8(p) GST_READ_UINT8(p)
#define READ16_FROM_LE(p) GST_READ_UINT16_LE (p)
#define READ16_FROM_BE(p) GST_READ_UINT16_BE (p)
#define READ24_FROM_LE(p) (p[0] | (p[1] << 8) | (p[2] << 16))
#define READ24_FROM_BE(p) (p[2] | (p[1] << 8) | (p[0] << 16))
#define READ32_FROM_LE(p) GST_READ_UINT32_LE (p)
#define READ32_FROM_BE(p) GST_READ_UINT32_BE (p)
MAKE_UNPACK_FUNC_ORC_II (u8, 1, SIGNED, READ8);
MAKE_UNPACK_FUNC_ORC_II (s8, 1, 0, READ8);
MAKE_UNPACK_FUNC_ORC_II (u16_le, 2, SIGNED, READ16_FROM_LE);
MAKE_UNPACK_FUNC_ORC_II (s16_le, 2, 0, READ16_FROM_LE);
MAKE_UNPACK_FUNC_ORC_II (u16_be, 2, SIGNED, READ16_FROM_BE);
MAKE_UNPACK_FUNC_ORC_II (s16_be, 2, 0, READ16_FROM_BE);
MAKE_UNPACK_FUNC_II (u24_le, 3, SIGNED, READ24_FROM_LE);
MAKE_UNPACK_FUNC_II (s24_le, 3, 0, READ24_FROM_LE);
MAKE_UNPACK_FUNC_II (u24_be, 3, SIGNED, READ24_FROM_BE);
MAKE_UNPACK_FUNC_II (s24_be, 3, 0, READ24_FROM_BE);
MAKE_UNPACK_FUNC_ORC_II (u32_le, 4, SIGNED, READ32_FROM_LE);
MAKE_UNPACK_FUNC_ORC_II (s32_le, 4, 0, READ32_FROM_LE);
MAKE_UNPACK_FUNC_ORC_II (u32_be, 4, SIGNED, READ32_FROM_BE);
MAKE_UNPACK_FUNC_ORC_II (s32_be, 4, 0, READ32_FROM_BE);
MAKE_UNPACK_FUNC_ORC_FI (float_le, gfloat, GFLOAT_FROM_LE);
MAKE_UNPACK_FUNC_ORC_FI (float_be, gfloat, GFLOAT_FROM_BE);
MAKE_UNPACK_FUNC_ORC_FI (double_le, gdouble, GDOUBLE_FROM_LE);
MAKE_UNPACK_FUNC_ORC_FI (double_be, gdouble, GDOUBLE_FROM_BE);
MAKE_UNPACK_FUNC_ORC_FF (float_hq_le, gfloat, GFLOAT_FROM_LE);
MAKE_UNPACK_FUNC_ORC_FF (float_hq_be, gfloat, GFLOAT_FROM_BE);
MAKE_UNPACK_FUNC_ORC_FF (double_hq_le, gdouble, GDOUBLE_FROM_LE);
MAKE_UNPACK_FUNC_ORC_FF (double_hq_be, gdouble, GDOUBLE_FROM_BE);
MAKE_UNPACK_FUNC_ORC_IF (u8_float, 1, SIGNED, READ8);
MAKE_UNPACK_FUNC_ORC_IF (s8_float, 1, 0, READ8);
MAKE_UNPACK_FUNC_ORC_IF (u16_le_float, 2, SIGNED, READ16_FROM_LE);
MAKE_UNPACK_FUNC_ORC_IF (s16_le_float, 2, 0, READ16_FROM_LE);
MAKE_UNPACK_FUNC_ORC_IF (u16_be_float, 2, SIGNED, READ16_FROM_BE);
MAKE_UNPACK_FUNC_ORC_IF (s16_be_float, 2, 0, READ16_FROM_BE);
MAKE_UNPACK_FUNC_IF (u24_le_float, 3, SIGNED, READ24_FROM_LE);
MAKE_UNPACK_FUNC_IF (s24_le_float, 3, 0, READ24_FROM_LE);
MAKE_UNPACK_FUNC_IF (u24_be_float, 3, SIGNED, READ24_FROM_BE);
MAKE_UNPACK_FUNC_IF (s24_be_float, 3, 0, READ24_FROM_BE);
MAKE_UNPACK_FUNC_ORC_IF (u32_le_float, 4, SIGNED, READ32_FROM_LE);
MAKE_UNPACK_FUNC_ORC_IF (s32_le_float, 4, 0, READ32_FROM_LE);
MAKE_UNPACK_FUNC_ORC_IF (u32_be_float, 4, SIGNED, READ32_FROM_BE);
MAKE_UNPACK_FUNC_ORC_IF (s32_be_float, 4, 0, READ32_FROM_BE);
/* One of the double_hq_* functions generated above is ineffecient, but it's
* never used anyway. The same is true for one of the s32_* functions. */
/***
* packing code
*/
#define MAKE_PACK_FUNC_NAME(name) \
audio_convert_pack_##name
#define MAKE_PACK_FUNC_NAME_ORC(name) \
orc_audio_convert_pack_##name
/*
* These functions convert the signed 32 bit integers to the
* target format. For this to work the following steps are done:
*
* 1) If the output format is unsigned we will XOR the sign bit. This
* will do the same as if we add 1<<31.
* 2) Afterwards we shift to the target depth. It's necessary to left-shift
* on signed values here to get arithmetical shifting.
* 3) This is then written into our target array by the corresponding write
* function for the target width.
*/
/* pack from signed integer 32 to integer using Orc */
#define MAKE_PACK_FUNC_ORC_II(name, stride, sign, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gint32 *src, guint8 * dst, \
gint scale, gint count) \
{ \
MAKE_PACK_FUNC_NAME_ORC (name) (dst, src, scale, count); \
}
/* pack from signed integer 32 to integer */
#define MAKE_PACK_FUNC_II(name, stride, sign, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gint32 *src, guint8 * dst, \
gint scale, gint count) \
{ \
gint32 tmp; \
for (;count; count--) { \
tmp = (*src++ ^ (sign)) >> scale; \
WRITE_FUNC (dst, tmp); \
dst += stride; \
} \
}
/* pack from signed integer 32 to float using orc */
#define MAKE_PACK_FUNC_ORC_IF(name, type, FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gint32 * src, type * dst, gint scale, \
gint count) \
{ \
MAKE_PACK_FUNC_NAME_ORC (name) (dst, src, count); \
}
/* pack from signed integer 32 to float */
#define MAKE_PACK_FUNC_IF(name, type, FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gint32 * src, type * dst, gint scale, \
gint count) \
{ \
for (; count; count--) \
*dst++ = FUNC ((type) ((*src++) * (1.0 / 2147483647.0))); \
}
/* pack from float 64 (double) to float */
#define MAKE_PACK_FUNC_FF(name, type, FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, type * dst, gint s, \
gint count) \
{ \
for (; count; count--) \
*dst++ = FUNC ((type) (*src++)); \
}
/* pack from float 64 (double) to float with orc */
#define MAKE_PACK_FUNC_ORC_FF(name, type, FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, type * dst, gint s, \
gint count) \
{ \
MAKE_PACK_FUNC_NAME_ORC (name) (dst, src, count); \
}
/* pack from float 64 (double) to signed int.
* the floats are already in the correct range. Only a cast is needed.
*/
#define MAKE_PACK_FUNC_FI_S(name, stride, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \
gint count) \
{ \
gint32 tmp; \
for (; count; count--) { \
tmp = (gint32) (*src); \
WRITE_FUNC (dst, tmp); \
src++; \
dst += stride; \
} \
}
/* pack from float 64 (double) to unsigned int.
* the floats are already in the correct range. Only a cast is needed
* and an addition of 2^(target_depth-1) to get in the correct unsigned
* range. */
#define MAKE_PACK_FUNC_FI_U(name, stride, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \
gint count) \
{ \
guint32 tmp; \
gdouble limit = (1U<<(32-scale-1)); \
for (; count; count--) { \
tmp = (guint32) (*src + limit); \
WRITE_FUNC (dst, tmp); \
src++; \
dst += stride; \
} \
}
/* pack from float 64 (double) to signed int with orc.
* the floats are already in the correct range. Only a cast is needed.
*/
#define MAKE_PACK_FUNC_ORC_FI_S(name, stride, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \
gint count) \
{ \
MAKE_PACK_FUNC_NAME_ORC (name) (dst, src, scale, count); \
}
/* pack from float 64 (double) to unsigned int with orc.
* the floats are already in the correct range. Only a cast is needed.
*/
#define MAKE_PACK_FUNC_ORC_FI_U(name, stride, WRITE_FUNC) \
static void \
MAKE_PACK_FUNC_NAME (name) (gdouble * src, guint8 * dst, gint scale, \
gint count) \
{ \
MAKE_PACK_FUNC_NAME_ORC (name) (dst, src, scale, count); \
}
#define WRITE8(p, v) GST_WRITE_UINT8 (p, v)
#define WRITE16_TO_LE(p,v) GST_WRITE_UINT16_LE (p, (guint16)(v))
#define WRITE16_TO_BE(p,v) GST_WRITE_UINT16_BE (p, (guint16)(v))
#define WRITE24_TO_LE(p,v) p[0] = v & 0xff; p[1] = (v >> 8) & 0xff; p[2] = (v >> 16) & 0xff
#define WRITE24_TO_BE(p,v) p[2] = v & 0xff; p[1] = (v >> 8) & 0xff; p[0] = (v >> 16) & 0xff
#define WRITE32_TO_LE(p,v) GST_WRITE_UINT32_LE (p, (guint32)(v))
#define WRITE32_TO_BE(p,v) GST_WRITE_UINT32_BE (p, (guint32)(v))
MAKE_PACK_FUNC_ORC_II (u8, 1, SIGNED, WRITE8);
MAKE_PACK_FUNC_ORC_II (s8, 1, 0, WRITE8);
MAKE_PACK_FUNC_ORC_II (u16_le, 2, SIGNED, WRITE16_TO_LE);
MAKE_PACK_FUNC_ORC_II (s16_le, 2, 0, WRITE16_TO_LE);
MAKE_PACK_FUNC_ORC_II (u16_be, 2, SIGNED, WRITE16_TO_BE);
MAKE_PACK_FUNC_ORC_II (s16_be, 2, 0, WRITE16_TO_BE);
MAKE_PACK_FUNC_II (u24_le, 3, SIGNED, WRITE24_TO_LE);
MAKE_PACK_FUNC_II (s24_le, 3, 0, WRITE24_TO_LE);
MAKE_PACK_FUNC_II (u24_be, 3, SIGNED, WRITE24_TO_BE);
MAKE_PACK_FUNC_II (s24_be, 3, 0, WRITE24_TO_BE);
MAKE_PACK_FUNC_ORC_II (u32_le, 4, SIGNED, WRITE32_TO_LE);
MAKE_PACK_FUNC_ORC_II (s32_le, 4, 0, WRITE32_TO_LE);
MAKE_PACK_FUNC_ORC_II (u32_be, 4, SIGNED, WRITE32_TO_BE);
MAKE_PACK_FUNC_ORC_II (s32_be, 4, 0, WRITE32_TO_BE);
MAKE_PACK_FUNC_ORC_IF (float_le, gfloat, GFLOAT_TO_LE);
MAKE_PACK_FUNC_ORC_IF (float_be, gfloat, GFLOAT_TO_BE);
MAKE_PACK_FUNC_ORC_IF (double_le, gdouble, GDOUBLE_TO_LE);
MAKE_PACK_FUNC_ORC_IF (double_be, gdouble, GDOUBLE_TO_BE);
MAKE_PACK_FUNC_ORC_FF (float_hq_le, gfloat, GFLOAT_TO_LE);
MAKE_PACK_FUNC_ORC_FF (float_hq_be, gfloat, GFLOAT_TO_BE);
MAKE_PACK_FUNC_ORC_FI_U (u8_float, 1, WRITE8);
MAKE_PACK_FUNC_ORC_FI_S (s8_float, 1, WRITE8);
MAKE_PACK_FUNC_ORC_FI_U (u16_le_float, 2, WRITE16_TO_LE);
MAKE_PACK_FUNC_ORC_FI_S (s16_le_float, 2, WRITE16_TO_LE);
MAKE_PACK_FUNC_ORC_FI_U (u16_be_float, 2, WRITE16_TO_BE);
MAKE_PACK_FUNC_ORC_FI_S (s16_be_float, 2, WRITE16_TO_BE);
MAKE_PACK_FUNC_FI_U (u24_le_float, 3, WRITE24_TO_LE);
MAKE_PACK_FUNC_FI_S (s24_le_float, 3, WRITE24_TO_LE);
MAKE_PACK_FUNC_FI_U (u24_be_float, 3, WRITE24_TO_BE);
MAKE_PACK_FUNC_FI_S (s24_be_float, 3, WRITE24_TO_BE);
MAKE_PACK_FUNC_ORC_FI_U (u32_le_float, 4, WRITE32_TO_LE);
MAKE_PACK_FUNC_ORC_FI_S (s32_le_float, 4, WRITE32_TO_LE);
MAKE_PACK_FUNC_ORC_FI_U (u32_be_float, 4, WRITE32_TO_BE);
MAKE_PACK_FUNC_ORC_FI_S (s32_be_float, 4, WRITE32_TO_BE);
/* For double_hq, packing and unpacking is the same, so we reuse the unpacking
* functions here. */
#define audio_convert_pack_double_hq_le MAKE_UNPACK_FUNC_NAME (double_hq_le)
#define audio_convert_pack_double_hq_be MAKE_UNPACK_FUNC_NAME (double_hq_be)
static AudioConvertUnpack unpack_funcs[] = {
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_hq_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (float_hq_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_hq_le),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (double_hq_be),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u8_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s8_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u16_be_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s16_be_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u24_be_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s24_be_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_le_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (u32_be_float),
(AudioConvertUnpack) MAKE_UNPACK_FUNC_NAME (s32_be_float),
};
static AudioConvertPack pack_funcs[] = {
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (double_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (double_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_hq_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (float_hq_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (double_hq_le),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (double_hq_be),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u8_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s8_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u16_be_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s16_be_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u24_be_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s24_be_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_le_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (u32_be_float),
(AudioConvertPack) MAKE_PACK_FUNC_NAME (s32_be_float),
};
#define DOUBLE_INTERMEDIATE_FORMAT(ctx) \
((!GST_AUDIO_FORMAT_INFO_IS_INTEGER (ctx->in.finfo) && \
!GST_AUDIO_FORMAT_INFO_IS_INTEGER (ctx->out.finfo)) || \
(ctx->ns != NOISE_SHAPING_NONE))
static gint
audio_convert_get_func_index (AudioConvertCtx * ctx,
const GstAudioFormatInfo * fmt)
{
gint index = 0;
if (GST_AUDIO_FORMAT_INFO_IS_INTEGER (fmt)) {
index += (GST_AUDIO_FORMAT_INFO_WIDTH (fmt) / 8 - 1) * 4;
index += GST_AUDIO_FORMAT_INFO_IS_LITTLE_ENDIAN (fmt) ? 0 : 2;
index += GST_AUDIO_FORMAT_INFO_IS_SIGNED (fmt) ? 1 : 0;
index += (ctx->ns == NOISE_SHAPING_NONE) ? 0 : 24;
} else {
/* this is float/double */
index = 16;
index += (GST_AUDIO_FORMAT_INFO_WIDTH (fmt) == 32) ? 0 : 2;
index += GST_AUDIO_FORMAT_INFO_IS_LITTLE_ENDIAN (fmt) ? 0 : 1;
index += (DOUBLE_INTERMEDIATE_FORMAT (ctx)) ? 4 : 0;
}
return index;
}
static inline gboolean
check_default (AudioConvertCtx * ctx, const GstAudioFormatInfo * fmt)
{
if (!DOUBLE_INTERMEDIATE_FORMAT (ctx)) {
return GST_AUDIO_FORMAT_INFO_FORMAT (fmt) == GST_AUDIO_FORMAT_S32;
} else {
return GST_AUDIO_FORMAT_INFO_FORMAT (fmt) == GST_AUDIO_FORMAT_F64;
}
}
gboolean
audio_convert_prepare_context (AudioConvertCtx * ctx, GstAudioInfo * in,
GstAudioInfo * out, GstAudioConvertDithering dither,
GstAudioConvertNoiseShaping ns)
{
gint idx_in, idx_out;
gint in_depth, out_depth;
g_return_val_if_fail (ctx != NULL, FALSE);
g_return_val_if_fail (in != NULL, FALSE);
g_return_val_if_fail (out != NULL, FALSE);
/* first clean the existing context */
audio_convert_clean_context (ctx);
ctx->in = *in;
ctx->out = *out;
in_depth = GST_AUDIO_FORMAT_INFO_DEPTH (in->finfo);
out_depth = GST_AUDIO_FORMAT_INFO_DEPTH (out->finfo);
/* Don't dither or apply noise shaping if target depth is bigger than 20 bits
* as DA converters only can do a SNR up to 20 bits in reality.
* Also don't dither or apply noise shaping if target depth is larger than
* source depth. */
if (out_depth <= 20 && (!GST_AUDIO_FORMAT_INFO_IS_INTEGER (in->finfo)
|| in_depth >= out_depth)) {
ctx->dither = dither;
ctx->ns = ns;
} else {
ctx->dither = DITHER_NONE;
ctx->ns = NOISE_SHAPING_NONE;
}
/* Use simple error feedback when output sample rate is smaller than
* 32000 as the other methods might move the noise to audible ranges */
if (ctx->ns > NOISE_SHAPING_ERROR_FEEDBACK && out->rate < 32000)
ctx->ns = NOISE_SHAPING_ERROR_FEEDBACK;
gst_channel_mix_setup_matrix (ctx);
idx_in = audio_convert_get_func_index (ctx, in->finfo);
ctx->unpack = unpack_funcs[idx_in];
idx_out = audio_convert_get_func_index (ctx, out->finfo);
ctx->pack = pack_funcs[idx_out];
/* if both formats are float/double or we use noise shaping use double as
* intermediate format and and switch mixing */
if (!DOUBLE_INTERMEDIATE_FORMAT (ctx)) {
GST_INFO ("use int mixing");
ctx->channel_mix = (AudioConvertMix) gst_channel_mix_mix_int;
} else {
GST_INFO ("use float mixing");
ctx->channel_mix = (AudioConvertMix) gst_channel_mix_mix_float;
}
GST_INFO ("unitsizes: %d -> %d", in->bpf, out->bpf);
/* check if input is in default format */
ctx->in_default = check_default (ctx, in->finfo);
/* check if channel mixer is passthrough */
ctx->mix_passthrough = gst_channel_mix_passthrough (ctx);
/* check if output is in default format */
ctx->out_default = check_default (ctx, out->finfo);
GST_INFO ("in default %d, mix passthrough %d, out default %d",
ctx->in_default, ctx->mix_passthrough, ctx->out_default);
ctx->in_scale =
GST_AUDIO_FORMAT_INFO_IS_INTEGER (in->finfo) ? (32 - in_depth) : 0;
ctx->out_scale =
GST_AUDIO_FORMAT_INFO_IS_INTEGER (out->finfo) ? (32 - out_depth) : 0;
gst_audio_quantize_setup (ctx);
return TRUE;
}
gboolean
audio_convert_clean_context (AudioConvertCtx * ctx)
{
g_return_val_if_fail (ctx != NULL, FALSE);
gst_audio_quantize_free (ctx);
gst_audio_info_init (&ctx->in);
gst_audio_info_init (&ctx->out);
gst_channel_mix_unset_matrix (ctx);
g_free (ctx->tmpbuf);
ctx->tmpbuf = NULL;
ctx->tmpbufsize = 0;
return TRUE;
}
gboolean
audio_convert_get_sizes (AudioConvertCtx * ctx, gint samples, gint * srcsize,
gint * dstsize)
{
g_return_val_if_fail (ctx != NULL, FALSE);
if (srcsize)
*srcsize = samples * ctx->in.bpf;
if (dstsize)
*dstsize = samples * ctx->out.bpf;
return TRUE;
}
gboolean
audio_convert_convert (AudioConvertCtx * ctx, gpointer src,
gpointer dst, gint samples, gboolean src_writable)
{
guint insize, outsize, size;
gpointer outbuf, tmpbuf;
guint intemp = 0, outtemp = 0, biggest;
gint in_width, out_width;
g_return_val_if_fail (ctx != NULL, FALSE);
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (dst != NULL, FALSE);
g_return_val_if_fail (samples >= 0, FALSE);
if (samples == 0)
return TRUE;
insize = ctx->in.bpf * samples;
outsize = ctx->out.bpf * samples;
in_width = GST_AUDIO_FORMAT_INFO_WIDTH (ctx->in.finfo);
out_width = GST_AUDIO_FORMAT_INFO_WIDTH (ctx->out.finfo);
/* find biggest temp buffer size */
size = (DOUBLE_INTERMEDIATE_FORMAT (ctx)) ? sizeof (gdouble)
: sizeof (gint32);
if (!ctx->in_default)
intemp = gst_util_uint64_scale (insize, size * 8, in_width);
if (!ctx->mix_passthrough || !ctx->out_default)
outtemp = gst_util_uint64_scale (outsize, size * 8, out_width);
biggest = MAX (intemp, outtemp);
/* see if one of the buffers can be used as temp */
if ((outsize >= biggest) && (ctx->out.bpf <= size))
tmpbuf = dst;
else if ((insize >= biggest) && src_writable && (ctx->in.bpf >= size))
tmpbuf = src;
else {
if (biggest > ctx->tmpbufsize) {
ctx->tmpbuf = g_realloc (ctx->tmpbuf, biggest);
ctx->tmpbufsize = biggest;
}
tmpbuf = ctx->tmpbuf;
}
/* start conversion */
if (!ctx->in_default) {
/* check if final conversion */
if (!(ctx->out_default && ctx->mix_passthrough))
outbuf = tmpbuf;
else
outbuf = dst;
/* unpack to default format */
ctx->unpack (src, outbuf, ctx->in_scale, samples * ctx->in.channels);
src = outbuf;
}
if (!ctx->mix_passthrough) {
/* check if final conversion */
if (!ctx->out_default)
outbuf = tmpbuf;
else
outbuf = dst;
/* convert channels */
ctx->channel_mix (ctx, src, outbuf, samples);
src = outbuf;
}
/* we only need to quantize if output format is int */
if (GST_AUDIO_FORMAT_INFO_IS_INTEGER (ctx->out.finfo)) {
if (ctx->out_default)
outbuf = dst;
else
outbuf = tmpbuf;
ctx->quantize (ctx, src, outbuf, samples);
}
if (!ctx->out_default) {
/* pack default format into dst */
ctx->pack (src, dst, ctx->out_scale, samples * ctx->out.channels);
}
return TRUE;
}
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