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Linshizhi
ffmpeg.wasm-core
Commits
722762f7
Commit
722762f7
authored
Sep 10, 2012
by
Stefano Sabatini
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lavfi/setpts: add FRAME_RATE constant
Useful for dealing with constant frame-rate video.
parent
e14725ce
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3 changed files
with
13 additions
and
3 deletions
+13
-3
filters.texi
doc/filters.texi
+3
-0
f_setpts.c
libavfilter/f_setpts.c
+9
-2
version.h
libavfilter/version.h
+1
-1
No files found.
doc/filters.texi
View file @
722762f7
...
@@ -4194,6 +4194,9 @@ Accept in input an expression evaluated through the eval API, which
...
@@ -4194,6 +4194,9 @@ Accept in input an expression evaluated through the eval API, which
can contain the following constants:
can contain the following constants:
@table @option
@table @option
@item FRAME_RATE
frame rate, only defined for constant frame-rate video
@item PTS
@item PTS
the presentation timestamp in input
the presentation timestamp in input
...
...
libavfilter/f_setpts.c
View file @
722762f7
...
@@ -35,6 +35,7 @@
...
@@ -35,6 +35,7 @@
#include "video.h"
#include "video.h"
static
const
char
*
const
var_names
[]
=
{
static
const
char
*
const
var_names
[]
=
{
"FRAME_RATE"
,
///< defined only for constant frame-rate video
"INTERLACED"
,
///< tell if the current frame is interlaced
"INTERLACED"
,
///< tell if the current frame is interlaced
"N"
,
///< frame number (starting at zero)
"N"
,
///< frame number (starting at zero)
"NB_CONSUMED_SAMPLES"
,
///< number of samples consumed by the filter (only audio)
"NB_CONSUMED_SAMPLES"
,
///< number of samples consumed by the filter (only audio)
...
@@ -54,6 +55,7 @@ static const char *const var_names[] = {
...
@@ -54,6 +55,7 @@ static const char *const var_names[] = {
};
};
enum
var_name
{
enum
var_name
{
VAR_FRAME_RATE
,
VAR_INTERLACED
,
VAR_INTERLACED
,
VAR_N
,
VAR_N
,
VAR_NB_CONSUMED_SAMPLES
,
VAR_NB_CONSUMED_SAMPLES
,
...
@@ -107,8 +109,13 @@ static int config_input(AVFilterLink *inlink)
...
@@ -107,8 +109,13 @@ static int config_input(AVFilterLink *inlink)
if
(
setpts
->
type
==
AVMEDIA_TYPE_AUDIO
)
if
(
setpts
->
type
==
AVMEDIA_TYPE_AUDIO
)
setpts
->
var_values
[
VAR_SAMPLE_RATE
]
=
inlink
->
sample_rate
;
setpts
->
var_values
[
VAR_SAMPLE_RATE
]
=
inlink
->
sample_rate
;
av_log
(
inlink
->
src
,
AV_LOG_VERBOSE
,
"TB:%f SAMPLE_RATE:%f
\n
"
,
setpts
->
var_values
[
VAR_FRAME_RATE
]
=
inlink
->
frame_rate
.
num
&&
inlink
->
frame_rate
.
den
?
setpts
->
var_values
[
VAR_TB
],
setpts
->
var_values
[
VAR_SAMPLE_RATE
]);
av_q2d
(
inlink
->
frame_rate
)
:
NAN
;
av_log
(
inlink
->
src
,
AV_LOG_VERBOSE
,
"TB:%f FRAME_RATE:%f SAMPLE_RATE:%f
\n
"
,
setpts
->
var_values
[
VAR_TB
],
setpts
->
var_values
[
VAR_FRAME_RATE
],
setpts
->
var_values
[
VAR_SAMPLE_RATE
]);
return
0
;
return
0
;
}
}
...
...
libavfilter/version.h
View file @
722762f7
...
@@ -30,7 +30,7 @@
...
@@ -30,7 +30,7 @@
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 16
#define LIBAVFILTER_VERSION_MINOR 16
#define LIBAVFILTER_VERSION_MICRO 10
1
#define LIBAVFILTER_VERSION_MICRO 10
2
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
LIBAVFILTER_VERSION_MINOR, \
...
...
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