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体验新版 GitCode,发现更多精彩内容 >>
提交
ee42716b
编写于
4月 23, 2011
作者:
S
Stefano Sabatini
提交者:
Anton Khirnov
9月 12, 2011
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
lavfi: add showinfo filter
Signed-off-by:
N
Anton Khirnov
<
anton@khirnov.net
>
上级
af1e2470
变更
6
隐藏空白更改
内联
并排
Showing
6 changed file
with
161 addition
and
1 deletion
+161
-1
Changelog
Changelog
+1
-0
doc/filters.texi
doc/filters.texi
+59
-0
libavfilter/Makefile
libavfilter/Makefile
+1
-0
libavfilter/allfilters.c
libavfilter/allfilters.c
+1
-0
libavfilter/avfilter.h
libavfilter/avfilter.h
+1
-1
libavfilter/vf_showinfo.c
libavfilter/vf_showinfo.c
+98
-0
未找到文件。
Changelog
浏览文件 @
ee42716b
...
@@ -43,6 +43,7 @@ easier to use. The changes are:
...
@@ -43,6 +43,7 @@ easier to use. The changes are:
- XMV demuxer
- XMV demuxer
- Windows Media Image decoder
- Windows Media Image decoder
- LATM muxer
- LATM muxer
- showinfo filter
version 0.7:
version 0.7:
...
...
doc/filters.texi
浏览文件 @
ee42716b
...
@@ -1210,6 +1210,65 @@ settb=2*intb
...
@@ -1210,6 +1210,65 @@ settb=2*intb
settb=AVTB
settb=AVTB
@end example
@end example
@section showinfo
Show a line containing various information for each input video frame.
The input video is not modified.
The shown line contains a sequence of key/value pairs of the form
@var{key}:@var{value}.
A description of each shown parameter follows:
@table @option
@item n
sequential number of the input frame, starting from 0
@item pts
Presentation TimeStamp of the input frame, expressed as a number of
time base units. The time base unit depends on the filter input pad.
@item pts_time
Presentation TimeStamp of the input frame, expressed as a number of
seconds
@item pos
position of the frame in the input stream, -1 if this information in
unavailable and/or meanigless (for example in case of synthetic video)
@item fmt
pixel format name
@item sar
sample aspect ratio of the input frame, expressed in the form
@var{num}/@var{den}
@item s
size of the input frame, expressed in the form
@var{width}x@var{height}
@item i
interlaced mode ("P" for "progressive", "T" for top field first, "B"
for bottom field first)
@item iskey
1 if the frame is a key frame, 0 otherwise
@item type
picture type of the input frame ("I" for an I-frame, "P" for a
P-frame, "B" for a B-frame, "?" for unknown type).
Check also the documentation of the @code{AVPictureType} enum and of
the @code{av_get_picture_type_char} function defined in
@file{libavutil/avutil.h}.
@item checksum
Adler-32 checksum of all the planes of the input frame
@item plane_checksum
Adler-32 checksum of each plane of the input frame, expressed in the form
"[@var{c0} @var{c1} @var{c2} @var{c3}]"
@end table
@section slicify
@section slicify
Pass the images of input video on to next video filter as multiple
Pass the images of input video on to next video filter as multiple
...
...
libavfilter/Makefile
浏览文件 @
ee42716b
...
@@ -44,6 +44,7 @@ OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o
...
@@ -44,6 +44,7 @@ OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o
OBJS-$(CONFIG_SETPTS_FILTER)
+=
vf_setpts.o
OBJS-$(CONFIG_SETPTS_FILTER)
+=
vf_setpts.o
OBJS-$(CONFIG_SETSAR_FILTER)
+=
vf_aspect.o
OBJS-$(CONFIG_SETSAR_FILTER)
+=
vf_aspect.o
OBJS-$(CONFIG_SETTB_FILTER)
+=
vf_settb.o
OBJS-$(CONFIG_SETTB_FILTER)
+=
vf_settb.o
OBJS-$(CONFIG_SHOWINFO_FILTER)
+=
vf_showinfo.o
OBJS-$(CONFIG_SLICIFY_FILTER)
+=
vf_slicify.o
OBJS-$(CONFIG_SLICIFY_FILTER)
+=
vf_slicify.o
OBJS-$(CONFIG_TRANSPOSE_FILTER)
+=
vf_transpose.o
OBJS-$(CONFIG_TRANSPOSE_FILTER)
+=
vf_transpose.o
OBJS-$(CONFIG_UNSHARP_FILTER)
+=
vf_unsharp.o
OBJS-$(CONFIG_UNSHARP_FILTER)
+=
vf_unsharp.o
...
...
libavfilter/allfilters.c
浏览文件 @
ee42716b
...
@@ -65,6 +65,7 @@ void avfilter_register_all(void)
...
@@ -65,6 +65,7 @@ void avfilter_register_all(void)
REGISTER_FILTER
(
SETPTS
,
setpts
,
vf
);
REGISTER_FILTER
(
SETPTS
,
setpts
,
vf
);
REGISTER_FILTER
(
SETSAR
,
setsar
,
vf
);
REGISTER_FILTER
(
SETSAR
,
setsar
,
vf
);
REGISTER_FILTER
(
SETTB
,
settb
,
vf
);
REGISTER_FILTER
(
SETTB
,
settb
,
vf
);
REGISTER_FILTER
(
SHOWINFO
,
showinfo
,
vf
);
REGISTER_FILTER
(
SLICIFY
,
slicify
,
vf
);
REGISTER_FILTER
(
SLICIFY
,
slicify
,
vf
);
REGISTER_FILTER
(
TRANSPOSE
,
transpose
,
vf
);
REGISTER_FILTER
(
TRANSPOSE
,
transpose
,
vf
);
REGISTER_FILTER
(
UNSHARP
,
unsharp
,
vf
);
REGISTER_FILTER
(
UNSHARP
,
unsharp
,
vf
);
...
...
libavfilter/avfilter.h
浏览文件 @
ee42716b
...
@@ -29,7 +29,7 @@
...
@@ -29,7 +29,7 @@
#include "libavutil/rational.h"
#include "libavutil/rational.h"
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MINOR
4
#define LIBAVFILTER_VERSION_MINOR
5
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
...
...
libavfilter/vf_showinfo.c
0 → 100644
浏览文件 @
ee42716b
/*
* Copyright (c) 2011 Stefano Sabatini
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* filter for showing textual video frame information
*/
#include "libavutil/adler32.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
typedef
struct
{
unsigned
int
frame
;
}
ShowInfoContext
;
static
av_cold
int
init
(
AVFilterContext
*
ctx
,
const
char
*
args
,
void
*
opaque
)
{
ShowInfoContext
*
showinfo
=
ctx
->
priv
;
showinfo
->
frame
=
0
;
return
0
;
}
static
void
end_frame
(
AVFilterLink
*
inlink
)
{
AVFilterContext
*
ctx
=
inlink
->
dst
;
ShowInfoContext
*
showinfo
=
ctx
->
priv
;
AVFilterBufferRef
*
picref
=
inlink
->
cur_buf
;
uint32_t
plane_checksum
[
4
]
=
{
0
},
checksum
=
0
;
int
i
,
plane
,
vsub
=
av_pix_fmt_descriptors
[
inlink
->
format
].
log2_chroma_h
;
for
(
plane
=
0
;
picref
->
data
[
plane
]
&&
plane
<
4
;
plane
++
)
{
size_t
linesize
=
av_image_get_linesize
(
picref
->
format
,
picref
->
video
->
w
,
plane
);
uint8_t
*
data
=
picref
->
data
[
plane
];
int
h
=
plane
==
1
||
plane
==
2
?
inlink
->
h
>>
vsub
:
inlink
->
h
;
for
(
i
=
0
;
i
<
h
;
i
++
)
{
plane_checksum
[
plane
]
=
av_adler32_update
(
plane_checksum
[
plane
],
data
,
linesize
);
checksum
=
av_adler32_update
(
checksum
,
data
,
linesize
);
data
+=
picref
->
linesize
[
plane
];
}
}
av_log
(
ctx
,
AV_LOG_INFO
,
"n:%d pts:%"
PRId64
" pts_time:%f pos:%"
PRId64
" "
"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
"checksum:%u plane_checksum:[%u %u %u %u]
\n
"
,
showinfo
->
frame
,
picref
->
pts
,
picref
->
pts
*
av_q2d
(
inlink
->
time_base
),
picref
->
pos
,
av_pix_fmt_descriptors
[
picref
->
format
].
name
,
picref
->
video
->
pixel_aspect
.
num
,
picref
->
video
->
pixel_aspect
.
den
,
picref
->
video
->
w
,
picref
->
video
->
h
,
!
picref
->
video
->
interlaced
?
'P'
:
/* Progressive */
picref
->
video
->
top_field_first
?
'T'
:
'B'
,
/* Top / Bottom */
picref
->
video
->
key_frame
,
av_get_picture_type_char
(
picref
->
video
->
pict_type
),
checksum
,
plane_checksum
[
0
],
plane_checksum
[
1
],
plane_checksum
[
2
],
plane_checksum
[
3
]);
showinfo
->
frame
++
;
avfilter_end_frame
(
inlink
->
dst
->
outputs
[
0
]);
}
AVFilter
avfilter_vf_showinfo
=
{
.
name
=
"showinfo"
,
.
description
=
NULL_IF_CONFIG_SMALL
(
"Show textual information for each video frame."
),
.
priv_size
=
sizeof
(
ShowInfoContext
),
.
init
=
init
,
.
inputs
=
(
AVFilterPad
[])
{{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
get_video_buffer
=
avfilter_null_get_video_buffer
,
.
start_frame
=
avfilter_null_start_frame
,
.
end_frame
=
end_frame
,
.
min_perms
=
AV_PERM_READ
,
},
{
.
name
=
NULL
}},
.
outputs
=
(
AVFilterPad
[])
{{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
},
{
.
name
=
NULL
}},
};
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