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Mark 2025-01-25 21:23:52 -08:00
parent 66d13d6636
commit f0f4bec8db
Signed by: Mark
GPG Key ID: C6D63995FE72FD80
1 changed files with 20 additions and 193 deletions
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213
reStream.sh
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@ -1,111 +1,14 @@
#!/bin/sh
# Current reStream.sh version
version="1.3.1"
# video_filters links:
# https://ffmpeg.org/doxygen/trunk/pixfmt_8h_source.html
# https://ffmpeg.org/ffmpeg-filters.html#eq
rm2_old_firmware_version="3.7.0.1930"
# default values for arguments
remarkable="${REMARKABLE_IP:-10.11.99.1}" # remarkable IP address
landscape=true # rotate 90 degrees to the right
cursor=false # show a cursor where the pen is hovering
output_path=- # display output through ffplay
format=- # automatic output format
webcam=false # not to a webcam
hflip=false # horizontal flip webcam
measure_throughput=false # measure how fast data is being transferred
window_title=reStream # stream window title is reStream
video_filters="" # list of ffmpeg filters to apply
unsecure_connection=false # Establish a unsecure connection that is faster
# loop through arguments and process them
while [ $# -gt 0 ]; do
case "$1" in
-v | --version)
echo "reStream version: v$version"
exit
;;
-p | --portrait)
landscape=false
shift
;;
-c | --cursor)
cursor=true
shift
;;
-s | --source)
remarkable="$2"
shift
shift
;;
-o | --output)
output_path="$2"
shift
shift
;;
-f | --format)
format="$2"
shift
shift
;;
-m | --measure)
measure_throughput=true
shift
;;
-w | --webcam)
webcam=true
format="v4l2"
# check if there is a modprobed v4l2 loopback device
# use the first cam as default if there is no output_path already
cam_path=$(v4l2-ctl --list-devices |
sed -n '/^[^\s]\+platform:v4l2loopback/{n;s/\s*//g;p;q}')
# fail if there is no such device
if [ -e "$cam_path" ]; then
if [ "$output_path" = "-" ]; then
output_path="$cam_path"
fi
else
echo "Could not find a video loopback device, did you"
echo "sudo modprobe v4l2loopback"
exit 1
fi
shift
;;
--mirror)
# do nothing if --webcam is not set
hflip=true
shift
;;
-t | --title)
window_title="$2"
shift
shift
;;
-u | --unsecure-connection)
unsecure_connection=true
shift
;;
-h | --help | *)
echo "Usage: $0 [-p] [-c] [-u] [-s <source>] [-o <output>] [-f <format>] [-t <title>] [-m] [-w] [--hflip]"
echo "Examples:"
echo " $0 # live view in landscape"
echo " $0 -p # live view in portrait"
echo " $0 -c # show a cursor where the pen is hovering (rM2 only)"
echo " $0 -s 192.168.0.10 # connect to different IP"
echo " $0 -o remarkable.mp4 # record to a file"
echo " $0 -o udp://dest:1234 -f mpegts # record to a stream"
echo " $0 -w --mirror # write to a webcam (yuv420p + resize + mirror)"
echo " $0 -u # establish a unsecure but faster connection"
exit 1
;;
esac
done
#remarkable="${REMARKABLE_IP:-10.143.0.112}" # remarkable IP address
landscape=true # rotate 90 degrees to the right
output_path=- # display output through ffplay
format=- # automatic output format
webcam=false # not to a webcam
hflip=false # horizontal flip webcam
window_title=reStream # stream window title is reStream
ssh_cmd() {
echo "[SSH]" "$@" >&2
@ -116,11 +19,6 @@ ssh_cmd() {
"root@$remarkable" "$@"
}
is_current_rm_firmware_version_ge() {
current_rm_firmware_version=$(ssh_cmd "grep 'REMARKABLE_RELEASE_VERSION=' /usr/share/remarkable/update.conf | cut -d '=' -f2")
test "$(printf '%s\n' "$current_rm_firmware_version" "$1" | sort -rV | head -n 1)" = "$current_rm_firmware_version"
}
# kill reStream on remarkable at the end.
# shellcheck disable=SC2016
exit_rm() {
@ -128,12 +26,6 @@ exit_rm() {
}
trap exit_rm EXIT INT HUP
# SSH_CONNECTION is a variable on reMarkable => ssh '' instead of ssh ""
# shellcheck disable=SC2016
remarkable_ip() {
ssh_cmd 'echo $SSH_CONNECTION' | cut -d\ -f3 | cut -d":" -f4
}
# check if we are able to reach the remarkable
if ! ssh_cmd true; then
echo "$remarkable unreachable or you have not set up an ssh key."
@ -143,54 +35,6 @@ if ! ssh_cmd true; then
exit 1
fi
rm_version="$(ssh_cmd cat /sys/devices/soc0/machine)"
case "$rm_version" in
"reMarkable 1.0")
width=1408
height=1872
bytes_per_pixel=2
fb_file="/dev/fb0"
pixel_format="rgb565le"
;;
"reMarkable 2.0")
if ssh_cmd "[ -f /dev/shm/swtfb.01 ]"; then
width=1404
height=1872
bytes_per_pixel=2
fb_file="/dev/shm/swtfb.01"
pixel_format="rgb565le"
else
width=1872
height=1404
fb_file=":mem:"
# Use updated video settings?
if is_current_rm_firmware_version_ge $rm2_old_firmware_version; then
echo "Using the newer :mem: video settings."
bytes_per_pixel=2
pixel_format="gray16be"
video_filters="$video_filters,colorlevels=rimin=0:rimax=29/255:gimin=0:gimax=29/255:bimin=0:bimax=29/255,transpose=3"
# Use the previous video settings.
else
echo "Using the older :mem: video settings."
bytes_per_pixel=1
pixel_format="gray8"
video_filters="$video_filters,transpose=2"
fi
fi
;;
*)
echo "Unsupported reMarkable version: $rm_version."
echo "Please visit https://github.com/rien/reStream/ for updates."
exit 1
;;
esac
# technical parameters
loglevel="info"
# check if restream binay is present on remarkable
if ssh_cmd "[ ! -f ~/restream ] && [ ! -f /opt/bin/restream ]"; then
echo "The restream binary is not installed on your reMarkable."
echo "Please install it using the instruction in the README:"
@ -198,22 +42,10 @@ if ssh_cmd "[ ! -f ~/restream ] && [ ! -f /opt/bin/restream ]"; then
exit 1
fi
# use pv to measure throughput if desired, else we just pipe through cat
if $measure_throughput; then
if ! pv --version >/dev/null; then
echo "You need to install pv to measure data throughput."
exit 1
else
loglevel="error" # verbose ffmpeg output interferes with pv
host_passthrough="pv"
fi
else
host_passthrough="cat"
fi
# store extra ffmpeg arguments in $@
set --
video_filters="colorlevels=rimin=0:rimax=29/255:gimin=0:gimax=29/255:bimin=0:bimax=29/255,transpose=3"
# rotate 90 degrees if landscape=true
$landscape && video_filters="$video_filters,transpose=1"
@ -251,30 +83,25 @@ fi
set -e # stop if an error occurs
restream_options="-h $height -w $width -b $bytes_per_pixel -f $fb_file"
if "$cursor"; then
restream_options="$restream_options -c"
fi
# shellcheck disable=SC2089
restream_rs="PATH=\"\$PATH:/opt/bin/:.\" restream $restream_options"
if $unsecure_connection; then
listen_port=16789
ssh_cmd "$restream_rs --listen $listen_port" &
sleep 1 # give some time to restream.rs to start listening
receive_cmd="nc $(remarkable_ip) $listen_port"
else
receive_cmd="ssh_cmd $restream_rs"
fi
restream_rs="PATH=\"\$PATH:/opt/bin/:.\" restream"
listen_port=16789
ssh_cmd "$restream_rs --listen $listen_port" &
sleep 1 # give some time to restream.rs to start listening
receive_cmd="nc $(remarkable) $listen_port"
# TODO: return this from stdout
width=1872
height=1404
pixel_format="gray8"
# shellcheck disable=SC2086,SC2090
$receive_cmd |
$host_passthrough |
pv |
(
"$output_cmd" \
-vcodec rawvideo \
-loglevel "$loglevel" \
-loglevel "error" \
-f rawvideo \
-pixel_format "$pixel_format" \
-video_size "$width,$height" \