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
|
#!/bin/bash
device=${1:-/dev/video0}
echo "Using $device"
run_writers() {
declare -a nbufs
nbufs=(10 9 4 5 6)
#nbufs=(12 12 12 12 12)
#for i in $(seq 0 4); do
for i in 1; do
sleep 1
gst-launch-1.0 videotestsrc horizontal-speed=1 num-buffers=90 ! v4l2sink device=$device
done
}
#v4l2-ctl -d $device -c keep_format=1 || exit 1
./utils/v4l2loopback-ctl set-caps "$device" 'UYVY:640x480@25/1' || exit 1
v4l2-ctl -d "$device" -c sustain_framerate=0 || exit 1
v4l2-ctl -d "$device" -c timeout=2000 || exit 1
gst-launch-1.0 videotestsrc num-buffers=1 ! v4l2sink device=$device || exit 1
{
run_writers
sleep 10
# can see a flash of green here
v4l2-ctl -d "$device" -c sustain_framerate=1 || exit 1
run_writers
sleep 10
run_writers
} >/dev/null &
gst-launch-1.0 v4l2src device=$device ! timeoverlay ! videoconvert ! autovideosink
kill $! 2>/dev/null
wait
|
