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Linshizhi
ffmpeg.wasm-core
Commits
8b99c5e8
Commit
8b99c5e8
authored
Feb 11, 2016
by
Tobias Rapp
Committed by
Paul B Mahol
Feb 11, 2016
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avfilter/f_metadata: avoid float rounding problems
Signed-off-by:
Tobias Rapp
<
t.rapp@noa-archive.com
>
parent
ac3a275d
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1 changed file
with
5 additions
and
3 deletions
+5
-3
f_metadata.c
libavfilter/f_metadata.c
+5
-3
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libavfilter/f_metadata.c
View file @
8b99c5e8
...
@@ -23,6 +23,8 @@
...
@@ -23,6 +23,8 @@
* filter for manipulating frame metadata
* filter for manipulating frame metadata
*/
*/
#include <float.h>
#include "libavutil/avassert.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/eval.h"
...
@@ -117,7 +119,7 @@ static int equal(MetadataContext *s, const char *value1, const char *value2, siz
...
@@ -117,7 +119,7 @@ static int equal(MetadataContext *s, const char *value1, const char *value2, siz
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
return
0
;
return
0
;
return
f
1
==
f2
;
return
f
absf
(
f1
-
f2
)
<
FLT_EPSILON
;
}
}
static
int
less
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
static
int
less
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
...
@@ -127,7 +129,7 @@ static int less(MetadataContext *s, const char *value1, const char *value2, size
...
@@ -127,7 +129,7 @@ static int less(MetadataContext *s, const char *value1, const char *value2, size
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
return
0
;
return
0
;
return
f1
<
f2
;
return
(
f1
-
f2
)
<
FLT_EPSILON
;
}
}
static
int
greater
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
static
int
greater
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
...
@@ -137,7 +139,7 @@ static int greater(MetadataContext *s, const char *value1, const char *value2, s
...
@@ -137,7 +139,7 @@ static int greater(MetadataContext *s, const char *value1, const char *value2, s
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
if
(
sscanf
(
value1
,
"%f"
,
&
f1
)
+
sscanf
(
value2
,
"%f"
,
&
f2
)
!=
2
)
return
0
;
return
0
;
return
f1
>
f2
;
return
(
f2
-
f1
)
<
FLT_EPSILON
;
}
}
static
int
parse_expr
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
static
int
parse_expr
(
MetadataContext
*
s
,
const
char
*
value1
,
const
char
*
value2
,
size_t
length
)
...
...
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