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3102fb03
编写于
5月 26, 2011
作者:
A
Anton Khirnov
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
x11grab: factorize returning error codes.
上级
3e15ea21
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
19 addition
and
9 deletion
+19
-9
libavdevice/x11grab.c
libavdevice/x11grab.c
+19
-9
未找到文件。
libavdevice/x11grab.c
浏览文件 @
3102fb03
...
...
@@ -91,6 +91,7 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
int
y_off
=
0
;
int
use_shm
;
char
*
param
,
*
offset
;
int
ret
=
0
;
param
=
av_strdup
(
s1
->
filename
);
offset
=
strchr
(
param
,
'+'
);
...
...
@@ -105,17 +106,20 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
dpy
=
XOpenDisplay
(
param
);
if
(
!
dpy
)
{
av_log
(
s1
,
AV_LOG_ERROR
,
"Could not open X display.
\n
"
);
return
AVERROR
(
EIO
);
ret
=
AVERROR
(
EIO
);
goto
out
;
}
if
(
ap
->
width
<=
0
||
ap
->
height
<=
0
||
ap
->
time_base
.
den
<=
0
)
{
av_log
(
s1
,
AV_LOG_ERROR
,
"AVParameters don't have video size and/or rate. Use -s and -r.
\n
"
);
return
AVERROR
(
EIO
);
ret
=
AVERROR
(
EINVAL
);
goto
out
;
}
st
=
av_new_stream
(
s1
,
0
);
if
(
!
st
)
{
return
AVERROR
(
ENOMEM
);
ret
=
AVERROR
(
ENOMEM
);
goto
out
;
}
av_set_pts_info
(
st
,
64
,
1
,
1000000
);
/* 64 bits pts in us */
...
...
@@ -136,7 +140,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
IPC_CREAT
|
0777
);
if
(
x11grab
->
shminfo
.
shmid
==
-
1
)
{
av_log
(
s1
,
AV_LOG_ERROR
,
"Fatal: Can't get shared memory!
\n
"
);
return
AVERROR
(
ENOMEM
);
ret
=
AVERROR
(
ENOMEM
);
goto
out
;
}
x11grab
->
shminfo
.
shmaddr
=
image
->
data
=
shmat
(
x11grab
->
shminfo
.
shmid
,
0
,
0
);
x11grab
->
shminfo
.
readOnly
=
False
;
...
...
@@ -144,7 +149,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
if
(
!
XShmAttach
(
dpy
,
&
x11grab
->
shminfo
))
{
av_log
(
s1
,
AV_LOG_ERROR
,
"Fatal: Failed to attach shared memory!
\n
"
);
/* needs some better error subroutine :) */
return
AVERROR
(
EIO
);
ret
=
AVERROR
(
EIO
);
goto
out
;
}
}
else
{
image
=
XGetImage
(
dpy
,
RootWindow
(
dpy
,
DefaultScreen
(
dpy
)),
...
...
@@ -172,7 +178,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
}
else
{
av_log
(
s1
,
AV_LOG_ERROR
,
"RGB ordering at image depth %i not supported ... aborting
\n
"
,
image
->
bits_per_pixel
);
av_log
(
s1
,
AV_LOG_ERROR
,
"color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx
\n
"
,
image
->
red_mask
,
image
->
green_mask
,
image
->
blue_mask
);
return
AVERROR
(
EIO
);
ret
=
AVERROR
(
EIO
);
goto
out
;
}
break
;
case
24
:
...
...
@@ -187,7 +194,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
}
else
{
av_log
(
s1
,
AV_LOG_ERROR
,
"rgb ordering at image depth %i not supported ... aborting
\n
"
,
image
->
bits_per_pixel
);
av_log
(
s1
,
AV_LOG_ERROR
,
"color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx
\n
"
,
image
->
red_mask
,
image
->
green_mask
,
image
->
blue_mask
);
return
AVERROR
(
EIO
);
ret
=
AVERROR
(
EIO
);
goto
out
;
}
break
;
case
32
:
...
...
@@ -210,7 +218,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
break
;
default:
av_log
(
s1
,
AV_LOG_ERROR
,
"image depth %i not supported ... aborting
\n
"
,
image
->
bits_per_pixel
);
return
-
1
;
ret
=
AVERROR
(
EINVAL
);
goto
out
;
}
x11grab
->
frame_size
=
ap
->
width
*
ap
->
height
*
image
->
bits_per_pixel
/
8
;
...
...
@@ -232,7 +241,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
st
->
codec
->
time_base
=
ap
->
time_base
;
st
->
codec
->
bit_rate
=
x11grab
->
frame_size
*
1
/
av_q2d
(
ap
->
time_base
)
*
8
;
return
0
;
out:
return
ret
;
}
/**
...
...
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