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Иван Мажукин
mpd
Commits
95d9bb6d
Commit
95d9bb6d
authored
Mar 21, 2012
by
Max Kellermann
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pcm_byteswap: move code to libutil
parent
33986075
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4 changed files
with
201 additions
and
38 deletions
+201
-38
Makefile.am
Makefile.am
+2
-0
pcm_byteswap.c
src/pcm_byteswap.c
+21
-38
byte_reverse.c
src/util/byte_reverse.c
+123
-0
byte_reverse.h
src/util/byte_reverse.h
+55
-0
No files found.
Makefile.am
View file @
95d9bb6d
...
@@ -392,6 +392,7 @@ endif
...
@@ -392,6 +392,7 @@ endif
libutil_a_SOURCES
=
\
libutil_a_SOURCES
=
\
src/util/list.h
\
src/util/list.h
\
src/util/list_sort.c src/util/list_sort.h
\
src/util/list_sort.c src/util/list_sort.h
\
src/util/byte_reverse.c src/util/byte_reverse.h
\
src/util/bit_reverse.c src/util/bit_reverse.h
src/util/bit_reverse.c src/util/bit_reverse.h
# PCM library
# PCM library
...
@@ -1271,6 +1272,7 @@ test_test_pcm_SOURCES = \
...
@@ -1271,6 +1272,7 @@ test_test_pcm_SOURCES = \
test
/test_pcm_main.c
test
/test_pcm_main.c
test_test_pcm_LDADD
=
\
test_test_pcm_LDADD
=
\
$(PCM_LIBS)
\
$(PCM_LIBS)
\
libutil.a
\
$(GLIB_LIBS)
$(GLIB_LIBS)
test_test_queue_priority_SOURCES
=
\
test_test_queue_priority_SOURCES
=
\
...
...
src/pcm_byteswap.c
View file @
95d9bb6d
/*
/*
* Copyright (C) 2003-201
1
The Music Player Daemon Project
* Copyright (C) 2003-201
2
The Music Player Daemon Project
* http://www.musicpd.org
* http://www.musicpd.org
*
*
* This program is free software; you can redistribute it and/or modify
* This program is free software; you can redistribute it and/or modify
...
@@ -20,14 +20,10 @@
...
@@ -20,14 +20,10 @@
#include "config.h"
#include "config.h"
#include "pcm_byteswap.h"
#include "pcm_byteswap.h"
#include "pcm_buffer.h"
#include "pcm_buffer.h"
#include "util/byte_reverse.h"
#include <glib.h>
#include <assert.h>
#include <assert.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "pcm"
const
int16_t
*
pcm_byteswap_16
(
struct
pcm_buffer
*
buffer
,
const
int16_t
*
pcm_byteswap_16
(
struct
pcm_buffer
*
buffer
,
const
int16_t
*
src
,
size_t
len
)
const
int16_t
*
src
,
size_t
len
)
{
{
...
@@ -35,13 +31,10 @@ const int16_t *pcm_byteswap_16(struct pcm_buffer *buffer,
...
@@ -35,13 +31,10 @@ const int16_t *pcm_byteswap_16(struct pcm_buffer *buffer,
assert
(
buf
!=
NULL
);
assert
(
buf
!=
NULL
);
const
int16_t
*
src_end
=
src
+
len
/
sizeof
(
*
src
);
const
uint8_t
*
src8
=
(
const
uint8_t
*
)
src
;
int16_t
*
dest
=
buf
;
const
void
*
src_end
=
src8
+
len
;
while
(
src
<
src_end
)
{
const
int16_t
x
=
*
src
++
;
*
dest
++
=
GUINT16_SWAP_LE_BE
(
x
);
}
reverse_bytes_16
((
uint16_t
*
)
buf
,
(
const
uint16_t
*
)
src
,
src_end
);
return
buf
;
return
buf
;
}
}
...
@@ -52,41 +45,31 @@ const int32_t *pcm_byteswap_32(struct pcm_buffer *buffer,
...
@@ -52,41 +45,31 @@ const int32_t *pcm_byteswap_32(struct pcm_buffer *buffer,
assert
(
buf
!=
NULL
);
assert
(
buf
!=
NULL
);
const
int32_t
*
src_end
=
src
+
len
/
sizeof
(
*
src
);
const
uint8_t
*
src8
=
(
const
uint8_t
*
)
src
;
int32_t
*
dest
=
buf
;
const
void
*
src_end
=
src8
+
len
;
while
(
src
<
src_end
)
{
const
int32_t
x
=
*
src
++
;
*
dest
++
=
GUINT32_SWAP_LE_BE
(
x
);
}
reverse_bytes_32
((
uint32_t
*
)
buf
,
(
const
uint32_t
*
)
src
,
src_end
);
return
buf
;
return
buf
;
}
}
const
void
*
const
void
*
pcm_byteswap
(
struct
pcm_buffer
*
buffer
,
enum
sample_format
format
,
pcm_byteswap
(
struct
pcm_buffer
*
buffer
,
enum
sample_format
format
,
const
void
*
src
,
size_t
size
)
const
void
*
_
src
,
size_t
size
)
{
{
switch
(
format
)
{
const
uint8_t
*
const
src
=
_src
;
case
SAMPLE_FORMAT_UNDEFINED
:
case
SAMPLE_FORMAT_S24
:
if
(
size
<=
1
)
case
SAMPLE_FORMAT_FLOAT
:
return
src
;
case
SAMPLE_FORMAT_DSD_OVER_USB
:
/* not implemented */
size_t
sample_size
=
sample_format_size
(
format
);
return
NULL
;
if
(
sample_size
<=
1
)
case
SAMPLE_FORMAT_S8
:
case
SAMPLE_FORMAT_DSD
:
return
src
;
return
src
;
case
SAMPLE_FORMAT_S16
:
assert
(
size
%
sample_size
==
0
);
return
pcm_byteswap_16
(
buffer
,
src
,
size
);
case
SAMPLE_FORMAT_S24_P32
:
uint8_t
*
dest
=
pcm_buffer_get
(
buffer
,
size
);
case
SAMPLE_FORMAT_S32
:
assert
(
dest
!=
NULL
);
return
pcm_byteswap_32
(
buffer
,
src
,
size
);
}
/* unreachable */
reverse_bytes
(
dest
,
src
,
src
+
size
,
sample_size
);
assert
(
false
);
return
dest
;
return
NULL
;
}
}
src/util/byte_reverse.c
0 → 100644
View file @
95d9bb6d
/*
* Copyright (C) 2003-2012 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "byte_reverse.h"
#include <glib.h>
#include <assert.h>
void
reverse_bytes_16
(
uint16_t
*
dest
,
const
uint16_t
*
src
,
const
uint16_t
*
src_end
)
{
assert
(
dest
!=
NULL
);
assert
(
src
!=
NULL
);
assert
(
src_end
>=
src
);
while
(
src
<
src_end
)
{
const
uint16_t
x
=
*
src
++
;
*
dest
++
=
GUINT16_SWAP_LE_BE
(
x
);
}
}
void
reverse_bytes_32
(
uint32_t
*
dest
,
const
uint32_t
*
src
,
const
uint32_t
*
src_end
)
{
assert
(
dest
!=
NULL
);
assert
(
src
!=
NULL
);
assert
(
src_end
>=
src
);
while
(
src
<
src_end
)
{
const
uint32_t
x
=
*
src
++
;
*
dest
++
=
GUINT32_SWAP_LE_BE
(
x
);
}
}
void
reverse_bytes_64
(
uint64_t
*
dest
,
const
uint64_t
*
src
,
const
uint64_t
*
src_end
)
{
assert
(
dest
!=
NULL
);
assert
(
src
!=
NULL
);
assert
(
src_end
>=
src
);
while
(
src
<
src_end
)
{
const
uint64_t
x
=
*
src
++
;
*
dest
++
=
GUINT64_SWAP_LE_BE
(
x
);
}
}
static
void
reverse_bytes_linear
(
uint8_t
*
dest
,
const
uint8_t
*
src
,
size_t
n
)
{
src
+=
n
;
while
(
n
--
>
0
)
*
dest
++
=
*--
src
;
}
static
void
reverse_bytes_generic
(
uint8_t
*
dest
,
const
uint8_t
*
src
,
const
uint8_t
*
src_end
,
size_t
frame_size
)
{
assert
(
dest
!=
NULL
);
assert
(
src
!=
NULL
);
assert
(
src_end
>=
src
);
assert
(
frame_size
>
0
);
assert
((
src_end
-
src
)
%
frame_size
==
0
);
while
(
src
<
src_end
)
{
reverse_bytes_linear
(
dest
,
src
,
frame_size
);
dest
+=
frame_size
;
src
+=
frame_size
;
}
}
void
reverse_bytes
(
uint8_t
*
dest
,
const
uint8_t
*
src
,
const
uint8_t
*
src_end
,
size_t
frame_size
)
{
assert
(
dest
!=
NULL
);
assert
(
src
!=
NULL
);
assert
(
src_end
>=
src
);
assert
(
frame_size
>
0
);
assert
((
src_end
-
src
)
%
frame_size
==
0
);
switch
(
frame_size
)
{
case
2
:
reverse_bytes_16
((
uint16_t
*
)
dest
,
(
const
uint16_t
*
)
src
,
(
const
uint16_t
*
)
src_end
);
break
;
case
4
:
reverse_bytes_32
((
uint32_t
*
)
dest
,
(
const
uint32_t
*
)
src
,
(
const
uint32_t
*
)
src_end
);
break
;
case
8
:
reverse_bytes_64
((
uint64_t
*
)
dest
,
(
const
uint64_t
*
)
src
,
(
const
uint64_t
*
)
src_end
);
break
;
default:
reverse_bytes_generic
(
dest
,
src
,
src_end
,
frame_size
);
}
}
src/util/byte_reverse.h
0 → 100644
View file @
95d9bb6d
/*
* Copyright (C) 2003-2012 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_BYTE_REVERSE_H
#define MPD_BYTE_REVERSE_H
#include <stdint.h>
#include <stddef.h>
/**
* Reverse the bytes in each 16 bit "frame". This function can be
* used for in-place operation.
*/
void
reverse_bytes_16
(
uint16_t
*
dest
,
const
uint16_t
*
src
,
const
uint16_t
*
src_end
);
/**
* Reverse the bytes in each 32 bit "frame". This function can be
* used for in-place operation.
*/
void
reverse_bytes_32
(
uint32_t
*
dest
,
const
uint32_t
*
src
,
const
uint32_t
*
src_end
);
/**
* Reverse the bytes in each 64 bit "frame". This function can be
* used for in-place operation.
*/
void
reverse_bytes_64
(
uint64_t
*
dest
,
const
uint64_t
*
src
,
const
uint64_t
*
src_end
);
/**
* Reverse the bytes in each "frame". This function cannot be used
* for in-place operation.
*/
void
reverse_bytes
(
uint8_t
*
dest
,
const
uint8_t
*
src
,
const
uint8_t
*
src_end
,
size_t
frame_size
);
#endif
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