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Linshizhi
ffmpeg.wasm-core
Commits
da39cac8
Commit
da39cac8
authored
Oct 05, 2012
by
Diego Biurrun
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Drop broken and unused CABAC test program.
parent
5e9c6ef8
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2 changed files
with
1 addition
and
149 deletions
+1
-149
Makefile
libavcodec/Makefile
+1
-2
cabac.c
libavcodec/cabac.c
+0
-147
No files found.
libavcodec/Makefile
View file @
da39cac8
...
...
@@ -676,8 +676,7 @@ SKIPHEADERS-$(HAVE_W32THREADS) += w32pthreads.h
EXAMPLES
=
api
TESTPROGS
=
cabac
\
dct
\
TESTPROGS
=
dct
\
fft
\
fft-fixed
\
golomb
\
...
...
libavcodec/cabac.c
View file @
da39cac8
...
...
@@ -162,150 +162,3 @@ void ff_init_cabac_states(CABACContext *c){
ff_h264_last_coeff_flag_offset_8x8
[
i
]
=
last_coeff_flag_offset_8x8
[
i
];
}
}
#ifdef TEST
#define SIZE 10240
#include "libavutil/lfg.h"
#include "avcodec.h"
#include "cabac.h"
static
inline
void
put_cabac_bit
(
CABACContext
*
c
,
int
b
){
put_bits
(
&
c
->
pb
,
1
,
b
);
for
(;
c
->
outstanding_count
;
c
->
outstanding_count
--
){
put_bits
(
&
c
->
pb
,
1
,
1
-
b
);
}
}
static
inline
void
renorm_cabac_encoder
(
CABACContext
*
c
){
while
(
c
->
range
<
0x100
){
//FIXME optimize
if
(
c
->
low
<
0x100
){
put_cabac_bit
(
c
,
0
);
}
else
if
(
c
->
low
<
0x200
){
c
->
outstanding_count
++
;
c
->
low
-=
0x100
;
}
else
{
put_cabac_bit
(
c
,
1
);
c
->
low
-=
0x200
;
}
c
->
range
+=
c
->
range
;
c
->
low
+=
c
->
low
;
}
}
static
void
put_cabac
(
CABACContext
*
c
,
uint8_t
*
const
state
,
int
bit
){
int
RangeLPS
=
ff_h264_lps_range
[
2
*
(
c
->
range
&
0xC0
)
+
*
state
];
if
(
bit
==
((
*
state
)
&
1
)){
c
->
range
-=
RangeLPS
;
*
state
=
h264_mps_state
[
*
state
];
}
else
{
c
->
low
+=
c
->
range
-
RangeLPS
;
c
->
range
=
RangeLPS
;
}
renorm_cabac_encoder
(
c
);
}
/**
* @param bit 0 -> write zero bit, !=0 write one bit
*/
static
void
put_cabac_bypass
(
CABACContext
*
c
,
int
bit
){
c
->
low
+=
c
->
low
;
if
(
bit
){
c
->
low
+=
c
->
range
;
}
//FIXME optimize
if
(
c
->
low
<
0x200
){
put_cabac_bit
(
c
,
0
);
}
else
if
(
c
->
low
<
0x400
){
c
->
outstanding_count
++
;
c
->
low
-=
0x200
;
}
else
{
put_cabac_bit
(
c
,
1
);
c
->
low
-=
0x400
;
}
}
/**
*
* @return the number of bytes written
*/
static
int
put_cabac_terminate
(
CABACContext
*
c
,
int
bit
){
c
->
range
-=
2
;
if
(
!
bit
){
renorm_cabac_encoder
(
c
);
}
else
{
c
->
low
+=
c
->
range
;
c
->
range
=
2
;
renorm_cabac_encoder
(
c
);
assert
(
c
->
low
<=
0x1FF
);
put_cabac_bit
(
c
,
c
->
low
>>
9
);
put_bits
(
&
c
->
pb
,
2
,
((
c
->
low
>>
7
)
&
3
)
|
1
);
flush_put_bits
(
&
c
->
pb
);
//FIXME FIXME FIXME XXX wrong
}
return
(
put_bits_count
(
&
c
->
pb
)
+
7
)
>>
3
;
}
int
main
(
void
){
CABACContext
c
;
uint8_t
b
[
9
*
SIZE
];
uint8_t
r
[
9
*
SIZE
];
int
i
;
uint8_t
state
[
10
]
=
{
0
};
AVLFG
prng
;
av_lfg_init
(
&
prng
,
1
);
ff_init_cabac_encoder
(
&
c
,
b
,
SIZE
);
ff_init_cabac_states
(
&
c
);
for
(
i
=
0
;
i
<
SIZE
;
i
++
){
r
[
i
]
=
av_lfg_get
(
&
prng
)
%
7
;
}
for
(
i
=
0
;
i
<
SIZE
;
i
++
){
START_TIMER
put_cabac_bypass
(
&
c
,
r
[
i
]
&
1
);
STOP_TIMER
(
"put_cabac_bypass"
)
}
for
(
i
=
0
;
i
<
SIZE
;
i
++
){
START_TIMER
put_cabac
(
&
c
,
state
,
r
[
i
]
&
1
);
STOP_TIMER
(
"put_cabac"
)
}
put_cabac_terminate
(
&
c
,
1
);
ff_init_cabac_decoder
(
&
c
,
b
,
SIZE
);
memset
(
state
,
0
,
sizeof
(
state
));
for
(
i
=
0
;
i
<
SIZE
;
i
++
){
START_TIMER
if
(
(
r
[
i
]
&
1
)
!=
get_cabac_bypass
(
&
c
)
)
av_log
(
NULL
,
AV_LOG_ERROR
,
"CABAC bypass failure at %d
\n
"
,
i
);
STOP_TIMER
(
"get_cabac_bypass"
)
}
for
(
i
=
0
;
i
<
SIZE
;
i
++
){
START_TIMER
if
(
(
r
[
i
]
&
1
)
!=
get_cabac
(
&
c
,
state
)
)
av_log
(
NULL
,
AV_LOG_ERROR
,
"CABAC failure at %d
\n
"
,
i
);
STOP_TIMER
(
"get_cabac"
)
}
if
(
!
get_cabac_terminate
(
&
c
))
av_log
(
NULL
,
AV_LOG_ERROR
,
"where's the Terminator?
\n
"
);
return
0
;
}
#endif
/* TEST */
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