1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#!/bin/sh
device=${1:-/dev/video0}
if [ ! -e "${device}" ]; then
echo "Unable to open device ${device}" 1>&2
exit 1
fi
parse_output() {
# EAGAIN EBUSY EEXIST EFAULT EINVAL EIO ENODEV ENOMEM ENOSPC ENOSYS ENOTTY
while read line; do
if echo "${line}" | grep -q "Invalid argument"; then
echo "EINVAL"
return
fi
if echo "${line}" | grep -q "Device or resource busy"; then
echo "EBUSY"
return
fi
if echo "${line}" | grep -q "Width/Height"; then
echo "${line}" | awk '{print $3}'
return
fi
done
}
parse_enum_fmt() {
local format
local count=0
while read line; do
if echo "${line}" | grep -q "\[[0-9]*\]"; then
format=$(printf "%-4s" $(echo "${line}" | awk '{print $2}' | sed -e "s|'||g"))
fi
if echo "${line}" | grep -q "Size: "; then
echo "- ${format}:$(echo $line | awk '{$1=""; $2=""; print $0}' | sed -e 's|[[:space:]]||g')"
count=$((count+1))
fi
done
[ ${count} -gt 0 ] || echo "- none"
}
output() {
echo "| ioctl | capture | output |"
echo "| ----- | ------- | ------ |"
echo "| GET | ${G_FMT_CAP} | ${G_FMT_OUT} |"
echo "| TRY0 | ${TRY_FMT_CAP0} | ${TRY_FMT_OUT0} |"
echo "| TRY1 | ${TRY_FMT_CAP1:--} | ${TRY_FMT_OUT1:--} |"
echo "| SET0 | ${S_FMT_CAP0:--} | ${S_FMT_OUT0:--} |"
echo "| SET1 | ${S_FMT_CAP1:--} | ${S_FMT_OUT1:--} |"
}
G_FMT_CAP=$(v4l2-ctl -d "${device}" -V | parse_output)
G_FMT_OUT=$(v4l2-ctl -d "${device}" -X | parse_output)
TRY_FMT_CAP0=$(v4l2-ctl -d "${device}" --try-fmt-video "width=640,height=480" | parse_output)
TRY_FMT_CAP1=$(v4l2-ctl -d "${device}" --try-fmt-video "width=640,height=4800" | parse_output)
TRY_FMT_OUT0=$(v4l2-ctl -d "${device}" --try-fmt-video-out "width=640,height=480" | parse_output)
TRY_FMT_OUT1=$(v4l2-ctl -d "${device}" --try-fmt-video-out "width=640,height=4800" | parse_output)
S_FMT_CAP0=$(v4l2-ctl -d "${device}" -v "width=640,height=480" | parse_output)
[ -n "${S_FMT_CAP0}" ] || S_FMT_CAP0=$(v4l2-ctl -d "${device}" -V | parse_output)
S_FMT_CAP1=$(v4l2-ctl -d "${device}" -v "width=640,height=4800" | parse_output)
[ -n "${S_FMT_CAP1}" ] || S_FMT_CAP1=$(v4l2-ctl -d "${device}" -V | parse_output)
S_FMT_OUT0=$(v4l2-ctl -d "${device}" -x "width=640,height=480" | parse_output)
[ -n "${S_FMT_OUT0}" ] || S_FMT_OUT0=$(v4l2-ctl -d "${device}" -X | parse_output)
S_FMT_OUT1=$(v4l2-ctl -d "${device}" -x "width=640,height=4800" | parse_output)
[ -n "${S_FMT_OUT1}" ] || S_FMT_OUT1=$(v4l2-ctl -d "${device}" -X | parse_output)
output | column -t
echo
echo "OUTPUT formats"
v4l2-ctl -d "${device}" --list-formats-out-ext | parse_enum_fmt
echo
echo "CAPTURE formats"
v4l2-ctl -d "${device}" --list-formats-ext | parse_enum_fmt
|
