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Mathis Rosenhauer
libaec
Commits
790a3612
Commit
790a3612
authored
Dec 20, 2012
by
Mathis Rosenhauer
Committed by
Thomas Jahns
Feb 19, 2013
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Revert "Let compiler decide how to unroll"
This reverts commit fdc6797ea6f3865ca079ebc260814a6f584b1cff.
parent
1ed96518
Changes
1
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29 additions
and
4 deletions
+29
-4
src/encode.c
src/encode.c
+29
-4
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src/encode.c
View file @
790a3612
...
...
@@ -278,6 +278,33 @@ static void preprocess_signed(struct aec_stream *strm)
state
->
uncomp_len
=
(
strm
->
block_size
-
1
)
*
strm
->
bits_per_sample
;
}
static
uint64_t
block_fs
(
struct
aec_stream
*
strm
,
int
k
)
{
/**
Sum FS of all samples in block for given splitting position.
*/
int
i
;
uint64_t
fs
=
0
;
struct
internal_state
*
state
=
strm
->
state
;
for
(
i
=
0
;
i
<
strm
->
block_size
;
i
+=
8
)
fs
+=
(
uint64_t
)(
state
->
block
[
i
+
0
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
1
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
2
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
3
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
4
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
5
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
6
]
>>
k
)
+
(
uint64_t
)(
state
->
block
[
i
+
7
]
>>
k
);
if
(
state
->
ref
)
fs
-=
(
uint64_t
)(
state
->
block
[
0
]
>>
k
);
return
fs
;
}
static
uint32_t
assess_splitting_option
(
struct
aec_stream
*
strm
)
{
/**
...
...
@@ -305,7 +332,7 @@ static uint32_t assess_splitting_option(struct aec_stream *strm)
analogue check can be done for decreasing k.
*/
int
i
,
k
;
int
k
;
int
k_min
;
int
this_bs
;
/* Block size of current block */
int
no_turn
;
/* 1 if we shouldn't reverse */
...
...
@@ -323,9 +350,7 @@ static uint32_t assess_splitting_option(struct aec_stream *strm)
dir
=
1
;
for
(;;)
{
fs_len
=
0
;
for
(
i
=
state
->
ref
;
i
<
strm
->
block_size
;
i
++
)
fs_len
+=
(
uint64_t
)(
state
->
block
[
i
]
>>
k
);
fs_len
=
block_fs
(
strm
,
k
);
len
=
fs_len
+
this_bs
*
(
k
+
1
);
if
(
len
<
len_min
)
{
...
...
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