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gstreamer/gst/audioconvert/audioconvert.c

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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 audio_convert_orc_unpack_u16_le audio_convert_orc_unpack_u16
#define audio_convert_orc_unpack_u16_be audio_convert_orc_unpack_u16_swap
#define audio_convert_orc_unpack_s16_le audio_convert_orc_unpack_s16
#define audio_convert_orc_unpack_s16_be audio_convert_orc_unpack_s16_swap
#define audio_convert_orc_unpack_u32_le audio_convert_orc_unpack_u32
#define audio_convert_orc_unpack_u32_be audio_convert_orc_unpack_u32_swap
#define audio_convert_orc_unpack_s32_le audio_convert_orc_unpack_s32
#define audio_convert_orc_unpack_s32_be audio_convert_orc_unpack_s32_swap
#define audio_convert_orc_unpack_float_le audio_convert_orc_unpack_float_s32
#define audio_convert_orc_unpack_float_be audio_convert_orc_unpack_float_s32_swap
#define audio_convert_orc_unpack_double_le audio_convert_orc_unpack_double_s32
#define audio_convert_orc_unpack_double_be audio_convert_orc_unpack_double_s32_swap
#define audio_convert_orc_unpack_float_hq_le audio_convert_orc_unpack_float_double
#define audio_convert_orc_unpack_float_hq_be audio_convert_orc_unpack_float_double_swap
#define audio_convert_orc_unpack_double_hq_le audio_convert_orc_unpack_double_double
#define audio_convert_orc_unpack_double_hq_be audio_convert_orc_unpack_double_double_swap
#define audio_convert_orc_unpack_u8_float audio_convert_orc_unpack_u8_double
#define audio_convert_orc_unpack_u16_le_float audio_convert_orc_unpack_u16_double
#define audio_convert_orc_unpack_u16_be_float audio_convert_orc_unpack_u16_double_swap
#define audio_convert_orc_unpack_u32_le_float audio_convert_orc_unpack_u32_double
#define audio_convert_orc_unpack_u32_be_float audio_convert_orc_unpack_u32_double_swap
#define audio_convert_orc_unpack_s8_float audio_convert_orc_unpack_s8_double
#define audio_convert_orc_unpack_s16_le_float audio_convert_orc_unpack_s16_double
#define audio_convert_orc_unpack_s16_be_float audio_convert_orc_unpack_s16_double_swap
#define audio_convert_orc_unpack_s32_le_float audio_convert_orc_unpack_s32_double
#define audio_convert_orc_unpack_s32_be_float audio_convert_orc_unpack_s32_double_swap
#define audio_convert_orc_pack_u8 audio_convert_orc_pack_u8
#define audio_convert_orc_pack_u16_le audio_convert_orc_pack_u16
#define audio_convert_orc_pack_u16_be audio_convert_orc_pack_u16_swap
#define audio_convert_orc_pack_s16_le audio_convert_orc_pack_s16
#define audio_convert_orc_pack_s16_be audio_convert_orc_pack_s16_swap
#define audio_convert_orc_pack_u32_le audio_convert_orc_pack_u32
#define audio_convert_orc_pack_u32_be audio_convert_orc_pack_u32_swap
#define audio_convert_orc_pack_s32_le audio_convert_orc_pack_s32
#define audio_convert_orc_pack_s32_be audio_convert_orc_pack_s32_swap
#define audio_convert_orc_pack_float_le audio_convert_orc_pack_s32_float
#define audio_convert_orc_pack_float_be audio_convert_orc_pack_s32_float_swap
#define audio_convert_orc_pack_double_le audio_convert_orc_pack_s32_double
#define audio_convert_orc_pack_double_be audio_convert_orc_pack_s32_double_swap
#define audio_convert_orc_pack_float_hq_le audio_convert_orc_pack_double_float
#define audio_convert_orc_pack_float_hq_be audio_convert_orc_pack_double_float_swap
#define audio_convert_orc_pack_s8_float audio_convert_orc_pack_double_s8
#define audio_convert_orc_pack_s16_le_float audio_convert_orc_pack_double_s16
#define audio_convert_orc_pack_s16_be_float audio_convert_orc_pack_double_s16_swap
#define audio_convert_orc_pack_s32_le_float audio_convert_orc_pack_double_s32
#define audio_convert_orc_pack_s32_be_float audio_convert_orc_pack_double_s32_swap
#define audio_convert_orc_pack_u8_float audio_convert_orc_pack_double_u8
#define audio_convert_orc_pack_u16_le_float audio_convert_orc_pack_double_u16
#define audio_convert_orc_pack_u16_be_float audio_convert_orc_pack_double_u16_swap
#define audio_convert_orc_pack_u32_le_float audio_convert_orc_pack_double_u32
#define audio_convert_orc_pack_u32_be_float audio_convert_orc_pack_double_u32_swap
#else
#define audio_convert_orc_unpack_u16_be audio_convert_orc_unpack_u16
#define audio_convert_orc_unpack_u16_le audio_convert_orc_unpack_u16_swap
#define audio_convert_orc_unpack_s16_be audio_convert_orc_unpack_s16
#define audio_convert_orc_unpack_s16_le audio_convert_orc_unpack_s16_swap
#define audio_convert_orc_unpack_u32_be audio_convert_orc_unpack_u32
#define audio_convert_orc_unpack_u32_le audio_convert_orc_unpack_u32_swap
#define audio_convert_orc_unpack_s32_be audio_convert_orc_unpack_s32
#define audio_convert_orc_unpack_s32_le audio_convert_orc_unpack_s32_swap
#define audio_convert_orc_unpack_float_be audio_convert_orc_unpack_float_s32
#define audio_convert_orc_unpack_float_le audio_convert_orc_unpack_float_s32_swap
#define audio_convert_orc_unpack_double_be audio_convert_orc_unpack_double_s32
#define audio_convert_orc_unpack_double_le audio_convert_orc_unpack_double_s32_swap
#define audio_convert_orc_unpack_float_hq_be audio_convert_orc_unpack_float_double
#define audio_convert_orc_unpack_float_hq_le audio_convert_orc_unpack_float_double_swap
#define audio_convert_orc_unpack_double_hq_be audio_convert_orc_unpack_double_double
#define audio_convert_orc_unpack_double_hq_le audio_convert_orc_unpack_double_double_swap
#define audio_convert_orc_unpack_u8_float audio_convert_orc_unpack_u8_double
#define audio_convert_orc_unpack_u16_be_float audio_convert_orc_unpack_u16_double
#define audio_convert_orc_unpack_u16_le_float audio_convert_orc_unpack_u16_double_swap
#define audio_convert_orc_unpack_u32_be_float audio_convert_orc_unpack_u32_double
#define audio_convert_orc_unpack_u32_le_float audio_convert_orc_unpack_u32_double_swap
#define audio_convert_orc_unpack_s8_float audio_convert_orc_unpack_s8_double
#define audio_convert_orc_unpack_s16_be_float audio_convert_orc_unpack_s16_double
#define audio_convert_orc_unpack_s16_le_float audio_convert_orc_unpack_s16_double_swap
#define audio_convert_orc_unpack_s32_be_float audio_convert_orc_unpack_s32_double
#define audio_convert_orc_unpack_s32_le_float audio_convert_orc_unpack_s32_double_swap
#define audio_convert_orc_pack_u8 audio_convert_orc_pack_u8
#define audio_convert_orc_pack_u16_be audio_convert_orc_pack_u16
#define audio_convert_orc_pack_u16_le audio_convert_orc_pack_u16_swap
#define audio_convert_orc_pack_s16_be audio_convert_orc_pack_s16
#define audio_convert_orc_pack_s16_le audio_convert_orc_pack_s16_swap
#define audio_convert_orc_pack_u32_be audio_convert_orc_pack_u32
#define audio_convert_orc_pack_u32_le audio_convert_orc_pack_u32_swap
#define audio_convert_orc_pack_s32_be audio_convert_orc_pack_s32
#define audio_convert_orc_pack_s32_le audio_convert_orc_pack_s32_swap
#define audio_convert_orc_pack_float_be audio_convert_orc_pack_s32_float
#define audio_convert_orc_pack_float_le audio_convert_orc_pack_s32_float_swap
#define audio_convert_orc_pack_double_be audio_convert_orc_pack_s32_double
#define audio_convert_orc_pack_double_le audio_convert_orc_pack_s32_double_swap
#define audio_convert_orc_pack_float_hq_be audio_convert_orc_pack_double_float
#define audio_convert_orc_pack_float_hq_le audio_convert_orc_pack_double_float_swap
#define audio_convert_orc_pack_s8_float audio_convert_orc_pack_double_s8
#define audio_convert_orc_pack_s16_be_float audio_convert_orc_pack_double_s16
#define audio_convert_orc_pack_s16_le_float audio_convert_orc_pack_double_s16_swap
#define audio_convert_orc_pack_s32_be_float audio_convert_orc_pack_double_s32
#define audio_convert_orc_pack_s32_le_float audio_convert_orc_pack_double_s32_swap
#define audio_convert_orc_pack_u8_float audio_convert_orc_pack_double_u8
#define audio_convert_orc_pack_u16_be_float audio_convert_orc_pack_double_u16
#define audio_convert_orc_pack_u16_le_float audio_convert_orc_pack_double_u16_swap
#define audio_convert_orc_pack_u32_be_float audio_convert_orc_pack_double_u32
#define audio_convert_orc_pack_u32_le_float audio_convert_orc_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) \
audio_convert_orc_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 inefficient, 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) \
audio_convert_orc_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);
if ((GST_AUDIO_INFO_CHANNELS (in) != GST_AUDIO_INFO_CHANNELS (out)) &&
(GST_AUDIO_INFO_IS_UNPOSITIONED (in)
|| GST_AUDIO_INFO_IS_UNPOSITIONED (out)))
goto unpositioned;
ctx->in = *in;
ctx->out = *out;
in_depth = GST_AUDIO_FORMAT_INFO_DEPTH (in->finfo);
out_depth = GST_AUDIO_FORMAT_INFO_DEPTH (out->finfo);
GST_INFO ("depth in %d, out %d", in_depth, out_depth);
/* 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;
GST_INFO ("using dither %d and noise shaping %d", dither, ns);
} else {
ctx->dither = DITHER_NONE;
ctx->ns = NOISE_SHAPING_NONE;
GST_INFO ("using no dither and noise shaping");
}
/* 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];
GST_INFO ("func index in %d, out %d", idx_in, idx_out);
/* if both formats are float/double or we use noise shaping use double as
* intermediate format 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_INFO ("scale in %d, out %d", ctx->in_scale, ctx->out_scale);
gst_audio_quantize_setup (ctx);
return TRUE;
/* ERRORS */
unpositioned:
{
GST_WARNING ("unpositioned channels");
return FALSE;
}
}
gboolean
audio_convert_clean_context (AudioConvertCtx * ctx)
{
g_return_val_if_fail (ctx != NULL, FALSE);
gst_audio_quantize_free (ctx);
gst_channel_mix_unset_matrix (ctx);
gst_audio_info_init (&ctx->in);
gst_audio_info_init (&ctx->out);
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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