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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
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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:
- XMV demuxer
- Windows Media Image decoder
- LATM muxer
- showinfo filter
version 0.7:
...
...
doc/filters.texi
浏览文件 @
ee42716b
...
...
@@ -1210,6 +1210,65 @@ settb=2*intb
settb=AVTB
@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
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-$(CONFIG_SETDAR_FILTER) += vf_aspect.o
OBJS-$(CONFIG_SETPTS_FILTER)
+=
vf_setpts.o
OBJS-$(CONFIG_SETSAR_FILTER)
+=
vf_aspect.o
OBJS-$(CONFIG_SETTB_FILTER)
+=
vf_settb.o
OBJS-$(CONFIG_SHOWINFO_FILTER)
+=
vf_showinfo.o
OBJS-$(CONFIG_SLICIFY_FILTER)
+=
vf_slicify.o
OBJS-$(CONFIG_TRANSPOSE_FILTER)
+=
vf_transpose.o
OBJS-$(CONFIG_UNSHARP_FILTER)
+=
vf_unsharp.o
...
...
libavfilter/allfilters.c
浏览文件 @
ee42716b
...
...
@@ -65,6 +65,7 @@ void avfilter_register_all(void)
REGISTER_FILTER
(
SETPTS
,
setpts
,
vf
);
REGISTER_FILTER
(
SETSAR
,
setsar
,
vf
);
REGISTER_FILTER
(
SETTB
,
settb
,
vf
);
REGISTER_FILTER
(
SHOWINFO
,
showinfo
,
vf
);
REGISTER_FILTER
(
SLICIFY
,
slicify
,
vf
);
REGISTER_FILTER
(
TRANSPOSE
,
transpose
,
vf
);
REGISTER_FILTER
(
UNSHARP
,
unsharp
,
vf
);
...
...
libavfilter/avfilter.h
浏览文件 @
ee42716b
...
...
@@ -29,7 +29,7 @@
#include "libavutil/rational.h"
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MINOR
4
#define LIBAVFILTER_VERSION_MINOR
5
#define LIBAVFILTER_VERSION_MICRO 0
#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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