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Linshizhi
ffmpeg.wasm-core
Commits
24368c4a
Commit
24368c4a
authored
Jan 26, 2007
by
Michael Niedermayer
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cosmetics / remove #if 0 code
Originally committed as revision 7715 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
72fd40bd
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1 changed file
with
1 addition
and
29 deletions
+1
-29
rangecoder.c
libavcodec/rangecoder.c
+1
-29
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libavcodec/rangecoder.c
View file @
24368c4a
...
...
@@ -66,28 +66,6 @@ void ff_build_rac_states(RangeCoder *c, int factor, int max_p){
memset
(
c
->
zero_state
,
0
,
sizeof
(
c
->
zero_state
));
memset
(
c
->
one_state
,
0
,
sizeof
(
c
->
one_state
));
#if 0
for(i=1; i<256; i++){
if(c->one_state[i])
continue;
p= (i*one + 128) >> 8;
last_p8= i;
for(;;){
p+= ((one-p)*factor + one/2) >> 32;
p8= (256*p + one/2) >> 32; //FIXME try without the one
if(p8 <= last_p8) p8= last_p8+1;
if(p8 > max_p) p8= max_p;
if(p8 < last_p8)
break;
c->one_state[last_p8]= p8;
if(p8 == last_p8)
break;
last_p8= p8;
}
}
#endif
#if 1
last_p8
=
0
;
p
=
one
/
2
;
for
(
i
=
0
;
i
<
128
;
i
++
){
...
...
@@ -99,7 +77,7 @@ void ff_build_rac_states(RangeCoder *c, int factor, int max_p){
p
+=
((
one
-
p
)
*
factor
+
one
/
2
)
>>
32
;
last_p8
=
p8
;
}
#endif
for
(
i
=
256
-
max_p
;
i
<=
max_p
;
i
++
){
if
(
c
->
one_state
[
i
])
continue
;
...
...
@@ -114,10 +92,6 @@ void ff_build_rac_states(RangeCoder *c, int factor, int max_p){
for
(
i
=
1
;
i
<
255
;
i
++
)
c
->
zero_state
[
i
]
=
256
-
c
->
one_state
[
256
-
i
];
#if 0
for(i=0; i<256; i++)
av_log(NULL, AV_LOG_DEBUG, "%3d %3d\n", i, c->one_state[i]);
#endif
}
/**
...
...
@@ -155,7 +129,6 @@ int main(){
r[i]= random()%7;
}
for(i=0; i<SIZE; i++){
START_TIMER
put_rac(&c, state, r[i]&1);
...
...
@@ -177,5 +150,4 @@ STOP_TIMER("get_rac")
return 0;
}
#endif
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