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Linshizhi
ffmpeg.wasm-core
Commits
99423853
Commit
99423853
authored
Nov 20, 2011
by
Justin Ruggles
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adx: simplify encoding by using put_sbits()
parent
b237248e
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1 changed file
with
6 additions
and
3 deletions
+6
-3
adxenc.c
libavcodec/adxenc.c
+6
-3
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libavcodec/adxenc.c
View file @
99423853
...
@@ -22,6 +22,7 @@
...
@@ -22,6 +22,7 @@
#include "libavutil/intreadwrite.h"
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "avcodec.h"
#include "adx.h"
#include "adx.h"
#include "put_bits.h"
/**
/**
* @file
* @file
...
@@ -37,6 +38,7 @@
...
@@ -37,6 +38,7 @@
static
void
adx_encode
(
ADXContext
*
c
,
unsigned
char
*
adx
,
const
short
*
wav
,
static
void
adx_encode
(
ADXContext
*
c
,
unsigned
char
*
adx
,
const
short
*
wav
,
ADXChannelState
*
prev
)
ADXChannelState
*
prev
)
{
{
PutBitContext
pb
;
int
scale
;
int
scale
;
int
i
;
int
i
;
int
s0
,
s1
,
s2
,
d
;
int
s0
,
s1
,
s2
,
d
;
...
@@ -72,9 +74,10 @@ static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
...
@@ -72,9 +74,10 @@ static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
AV_WB16
(
adx
,
scale
);
AV_WB16
(
adx
,
scale
);
for
(
i
=
0
;
i
<
16
;
i
++
)
{
init_put_bits
(
&
pb
,
adx
+
2
,
16
);
adx
[
i
+
2
]
=
((
data
[
i
*
2
]
/
scale
)
<<
4
)
|
((
data
[
i
*
2
+
1
]
/
scale
)
&
0xf
);
for
(
i
=
0
;
i
<
32
;
i
++
)
}
put_sbits
(
&
pb
,
4
,
av_clip
(
data
[
i
]
/
scale
,
-
8
,
7
));
flush_put_bits
(
&
pb
);
}
}
static
int
adx_encode_header
(
AVCodecContext
*
avctx
,
unsigned
char
*
buf
,
size_t
bufsize
)
static
int
adx_encode_header
(
AVCodecContext
*
avctx
,
unsigned
char
*
buf
,
size_t
bufsize
)
...
...
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