camera: low latency preview and picture

- Take pictures by pressing "s" when the preview opens.
- Depends on sxmo_autorotate.sh
- movie is not currently working. See comments in code
- uses sxiv for image previews of photos taken during that photoshoot
- TODO: use sxiv keyhandlers to add a delete photo function
	- See: /usr/share/examples/sxiv/key-handler
	- I dont know how we would distribute this
master
Anjandev Momi 4 years ago committed by Miles Alan
parent d245a004b6
commit 44784c106b
  1. 1
      scripts/core/sxmo_appmenu.sh
  2. 145
      scripts/core/sxmo_camera.sh
  3. 1
      scripts/core/sxmo_xinit.sh

@ -176,6 +176,7 @@ programchoicesinit() {
Rotate ↻ ^ 1 ^ key greater Rotate ↻ ^ 1 ^ key greater
Flip ⇄ ^ 1 ^ key question Flip ⇄ ^ 1 ^ key question
Flip ⇅ ^ 1 ^ key bar Flip ⇅ ^ 1 ^ key bar
Thumbnail ⊡ ^ 0 ^ key Return
" "
WINNAME=Sxiv && return WINNAME=Sxiv && return
elif echo "$WMCLASS" | grep -i "st-256color"; then elif echo "$WMCLASS" | grep -i "st-256color"; then

@ -1,8 +1,143 @@
#!/usr/bin/env sh #!/usr/bin/env sh
err() {
printf %b "$1" | dmenu -fn Terminus-20 -c -l 10 SXMO_IMAGESDIR="$XDG_PICTURES_DIR/sxmo"
exit 1
node_rear="ov5640 3-004c"
route_rear="ov5640"
mode_rear="1920x1080@20"
node_front="gc2145 3-003c"
route_front="gc2145"
mode_front="1600x1200@15"
pixfmt='UYVY'
set_route () {
camera="$1"
if [ "$camera" = "$route_rear" ]
then
link1='"gc2145 3-003c":0->"sun6i-csi":0[0]'
link2='"ov5640 3-004c":0->"sun6i-csi":0[1]'
elif [ "$camera" = "$route_front" ]
then
link1='"ov5640 3-004c":0->"sun6i-csi":0[0]'
link2='"gc2145 3-003c":0->"sun6i-csi":0[1]'
fi
media-ctl -d /dev/media1 --links "$link1" && media-ctl -d /dev/media1 --links "$link2" || exit 1
}
setup () {
node="$1"
mode="$2"
res="${mode%%@*}"
speed="${mode##*@}"
busfmt='UYVY8_2X8'
setup="media-ctl -d /dev/media1 --set-v4l2 '\"$node\":0[fmt:$busfmt/$res@1/$speed]'"
eval "$setup"
height="${res%%x*}"
width="${res##*x}"
v4l2-ctl --device /dev/video1 --set-fmt-video="width=$width,height=$height,pixelformat=$pixfmt"
}
still () {
node="$1"
mode="$2"
angle="$3"
skip="$4"
setup "$node" "$mode"
speed="30"
res="${mode%%@*}"
speed="${mode##*@}"
height="${res##*x}"
width="${res%%x*}"
mkdir "$SXMO_IMAGESDIR"
SCREENSHOT_PRE="$(date)"
mplayer tv:// -tv driver=v4l2:width=$width:height=$height:device=/dev/video1 -fps $speed -vf rotate="$angle",screenshot="$SXMO_IMAGESDIR/$SCREENSHOT_PRE"
find "$SXMO_IMAGESDIR" -iname "$SCREENSHOT_PRE*" | sxiv -t -i -
# mpv command doesnt work =( https://wiki.archlinux.org/index.php/Webcam_setup#MPlayer
# mpv --demuxer-lavf-format=video4linux2 --demuxer-lavf-o-set=input_format=rawvideo:video_size=1920x1080:framerate=20 av://v4l2:/dev/video1 --profile=low-latency
}
movie () {
# Not working but shows off the performance of this script
node="$1"
mode="$2"
angle="$3"
skip="$4"
setup "$node" "$mode"
speed="30"
res="${mode%%@*}"
speed="${mode##*@}"
height="${res##*x}"
width="${res%%x*}"
VIDEO_NAME="$SXMO_IMAGESDIR"/"$(date)".mkv
# this command gives the best performance but I cannot get a video preview with this command =(
# please note, to stop recording, you need to type `killall ffmpeg` in a terminal
ffmpeg -f v4l2 -framerate $speed -video_size $res -i /dev/video1 -preset ultrafast -filter:v fps=fps=$speed -f matroska "$VIDEO_NAME"
save="Save: $VIDEO_NAME"
playback="Playback: $(ffprobe -v quiet -of csv=p=0 -show_entries format=duration "$VIDEO_NAME")"
delete="Delete Recording"
DONE=0
while [ $DONE != 1 ]; do
result="$(printf %b "$save\n$playback\n$delete" | dmenu -fn Terminus-30 -c -p "Record" -l 20)"
if [ "$result" = "$save" ]; then
return 0
elif [ "$result" = "$playback" ]; then
mpv "$VIDEO_NAME"
else
rm "$VIDEO_NAME"
return 0
fi
done
# outputs 10 fps =(
# ffmpeg -f v4l2 -framerate $speed -video_size $res -i /dev/video1 -preset ultrafast -filter:v fps=fps=$speed -f matroska pipe: | tee file.mkv | mplayer - -fps $speed -vf screenshot
# I tried forking ffmpeg to background and using mplayer. When mplayer closes, killall ffmpeg. It didnt work =(
#mplayer tv:// -tv driver=v4l2:width=$width:height=$height:device=/dev/video1 -fps $speed -vf screenshot
} }
media-ctl -d /dev/media1 --set-v4l2 '"ov5640 3-004c":0[fmt:UYVY8_2X8/1280x720]' || err "Couldn't open camera, is camera enabled?"
mpv --video-rotate=90 av://v4l2:/dev/video1 type="$(printf %b "picture\nmovie" | dmenu -fn Terminus-30 -c -p "Record" -l 20)"
camera="$(printf %b "front\nrear" | dmenu -fn Terminus-30 -c -p "Record" -l 20)"
# Note: "angle" is set according to mplayer's conventions. See man mplayer and look for "rotate"
[ "$camera" = "rear" ] && set_route "$route_rear" && skip=5 && node="$node_rear" && mode="$mode_rear" && angle="1"
[ "$camera" = "front" ] && set_route "$route_front" && skip=0 && node="$node_front" && mode="$mode_front" && angle="2"
# our angle variables are set for rotnormal orientation
# rotating will ruin the preview
RUNNING_AUTO="$(ps aux | grep "sh /usr/bin/sxmo_autorotate.sh" | grep -v grep | cut -f2 -d' ')"
[ -n "$RUNNING_AUTO" ] && echo "$RUNNING_AUTO" | tr '\n' ' ' | xargs kill -9; notify-send "Turning autorotate off"
sxmo_rotate.sh isrotated && sxmo_rotate.sh rotnormal
[ "$type" = "picture" ] && still "$node" "$mode" "$angle" "$skip"
[ "$type" = "movie" ] && movie "$node" "$mode" "$angle" "$skip"
[ -n "$RUNNING_AUTO" ] && sxmo_autorotate.sh

@ -12,6 +12,7 @@ envvars() {
[ -z "$XDG_CACHE_HOME" ] && export XDG_CACHE_HOME=~/.cache [ -z "$XDG_CACHE_HOME" ] && export XDG_CACHE_HOME=~/.cache
[ -z "$XDG_DATA_HOME" ] && export XDG_DATA_HOME=~/.local/share [ -z "$XDG_DATA_HOME" ] && export XDG_DATA_HOME=~/.local/share
[ -z "$XDG_RUNTIME_HOME" ] && export XDG_RUNTIME_HOME=~/.local/run [ -z "$XDG_RUNTIME_HOME" ] && export XDG_RUNTIME_HOME=~/.local/run
[ -z "$XDG_PICTURES_DIR" ] && export XDG_PICTURES_DIR=~/Pictures
} }
setupxdgruntimedir() { setupxdgruntimedir() {

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