Updated license and TODO, massive MJPG improvements

MJPG now has a massively improved command. Instead of transcoding the
video for no reason, instead we ask the camera driver for MJPG data so
that we don't have to transcode raw video if we don't have to.

MJPG's resolution and FPS can now also theoretically be changed from a
config file. The frontend components for this however are not
implemented.

Updated notice in first time setup since we're not in alpha anymore.

LICENSE

@@ -1,5 +1,5 @@
 Copyright (c) 2015 Raspberry Pi (Trading) Ltd.
-
+Copyright (c) 2020 Logan Gartner
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

TODO.md

@@ -5,6 +5,13 @@
 - Add hostname configuration (replace nmtui)
 - Better service configuration (deeper menu)
 - System check
+- Touch screen calibration
+
+## Frontend
+- Separate frontend from pi account
+
+## Nginx
+- Add HTTP basic auth (especially to MJPG)
 
 ## Misc
 - More security

stage2/05-mjpgstreamer/01-run.sh

@@ -2,9 +2,11 @@
 
 install -m 644 files/mjpg-streamer.service ${ROOTFS_DIR}/etc/systemd/system/mjpg-streamer.service
 install -m 755 files/start-mjpg ${ROOTFS_DIR}/usr/local/bin/start-mjpg
+mkdir -p ${ROOTFS_DIR}/usr/local/etc/mjpg-server/
+install -m 755 files/config.sh ${ROOTFS_DIR}/usr/local/etc/mjpg-server/  
 
 if [[ ! -f ${ROOTFS_DIR}/usr/local/bin/mjpeg-server ]]; then
-  # Do some semi janky cross compilation since Golang won't let me set GOBIN when cross compiling
+  # Do some semi janky cross compilation since Golang won't let me set GOBIN when cross compiling (gogl plz fix)
   GOPATH=/tmp/go GOARCH=arm64 go get github.com/blueimp/mjpeg-server
   cp /tmp/go/bin/linux_arm64/mjpeg-server ${ROOTFS_DIR}/usr/local/bin/mjpeg-server
   rm -rf /tmp/go

stage2/05-mjpgstreamer/files/config.sh

@@ -0,0 +1,3 @@
+VIDEO_DEVICE="/dev/video0"
+VIDEO_SIZE="1280x720"
+FRAMERATE=15

stage2/05-mjpgstreamer/files/start-mjpg

@@ -1,6 +1,15 @@
 #!/bin/bash
-if [[ "$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nokey=1:noprint_wrappers=1 /dev/video0)" == "h264" ]]; then
-  /usr/local/bin/mjpeg-server -a 127.0.0.1:9000 -- ffmpeg -input_format h264 -i /dev/video0 -c:v h264_v4l2m2m -f mpjpeg -
+
+# Include environment variables
+source /usr/local/etc/mjpg-server/config.sh
+
+# Test if camera can just give us MJPG frames so that we can save a bunch of CPU
+if ffmpeg -input_format mjpeg -video_size $VIDEO_SIZE -framerate $FRAMERATE -nostats -v quiet -i $VIDEO_DEVICE vframes 1 -f null - >/dev/null; then
+  /usr/local/bin/mjpeg-server -a 127.0.0.1:9000 -- ffmpeg -input_format mjpeg -video_size $VIDEO_SIZE -framerate $FRAMERATE -i $VIDEO_DEVICE -f mjpeg -c:v copy - 
+# Oh, it can't :( Guess I'll just blast the CPU to maybe get 5FPS
+elif ffmpeg -video_size $VIDEO_SIZE -framerate $FRAMERATE -nostats -v quiet -i $VIDEO_DEVICE -vframes 1 -f null - >/dev/null; then  
+  /usr/local/bin/mjpeg-server -a 127.0.0.1:9000 -- ffmpeg -video_size $VIDEO_SIZE -framerate $FRAMERATE -i /dev/video0 -f mjpeg -
 else
-  /usr/local/bin/mjpeg-server -a 127.0.0.1:9000 -- ffmpeg -i /dev/video0 -f mpjpeg -
+  echo "FFmpeg could not start. Double check your configuration."
+  exit 1
 fi

stage2/06-utils/files/first-time.sh

@@ -64,7 +64,7 @@ suggested_menu () {
   done
 }
 
-dialog --title "NOTICE" --nocancel --colors --msgbox "This collection of software is currently in alpha. It is lacking several critical features. \Zb\Z1DO NOT\Zn use this in a production environment. This image has been provided for testing purposes only." 10 50
+dialog --title "NOTICE" --nocancel --colors --msgbox "This collection of software is currently in beta. It is lacking several critical features. \Zb\Z1DO NOT\Zn use this in a production environment." 10 50
 
 # Force the user to change the pi user's password before the RPi gets botnetted
 change_password