lots: shellcheck, streaming stuff, fixes

[distro-setup] / distro-end

diff --git a/distro-end b/distro-end
index 16fc7a5b0afbcfe6e46291c24ce4edbf3a1e744d..e5770d48647187929627419eecbeabd9928638e0 100755 (executable)
--- a/distro-end
+++ b/distro-end
@@ -176,11 +176,13 @@ EOF
       fi
     done
     if $doupdate; then
-      cd $(mktemp -d)
+      tmpdir=$(mktemp -d)
+      cd $tmpdir
       p download debian-archive-keyring
       s dpkg -i debian-archive-keyring
       p update
       cd -
+      rm -rf $tmpdir
     fi
 
     if [[ ! -e /usr/share/debootstrap/scripts/bookworm ]]; then
@@ -756,6 +758,35 @@ esac
 case $distro in
   trisquel|ubuntu)
 
+
+    ## one time setup thing I did
+    # c /a/opt/obs-cmd/
+    # cargo build --release
+    # cp target/release/obs-cmd ../bin
+    #
+    ## in obs, tools -> websocket server settings -> generate/copy password
+    #
+    # note: obs-studio on gnu does not support webrtc, it seems mainly because
+    # libdatachannel is not packaged. If it was, it would just need to do
+    # apt source obs-studio, obs-studio-30.1.1/debian/rules set -DENABLE_WEBRTC=ON
+    #
+    # I did manage to build libdatachannel following its instructions, then make install,
+    # then obs failed due to nvidia. found those options to disable with
+    # rg 'option\(ENABLE' | gr nv, then build obs like so:
+    #
+    # cmake -DLINUX_PORTABLE=ON -DCMAKE_INSTALL_PREFIX="${HOME}/obs-studio-portable" -DENABLE_BROWSER=OFF -DENABLE_AJA=OFF -DENABLE_NEW_MPEGTS_OUTPUT=OFF -DENABLE_WEBRTC=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DENABLE_NVVFX=OFF -DENABLE_NVAFX=OFF -DENABLE_NATIVE_NVENC=OFF  ..
+    #
+    #
+    #
+    # however, I didn't end up trying it out.
+    #
+    # note, in terminal source, i setup a transform so it would show the
+    # bottom 1080p section of the terminal instead of the top if the
+    # screen was bigger. click like 2 times in the preview so the red
+    # lines show up, right click, edit transform (or ctrl-e). bounding
+    # box type: scale to width of bounds. alignment in bounding box:
+    # bottom left. bounding box size 1920 x 1080.
+
     # ppa:obsproject/obs-studio
     if [[ ! -s /etc/apt/sources.list.d/obs.list ]]; then
       # https://blog.zackad.dev/en/2017/08/17/add-ppa-simple-way.html
@@ -767,6 +798,7 @@ EOF
       p update
     fi
     ;;
+
 esac
 
 case $codename_compat in
@@ -2015,9 +2047,39 @@ esac
 # `mpv --cache=no` had about 2.5 sec latency vs 4 seconds.
 # Then I discovered this command which had about .5 sec latency:
 #ffplay -f live_flv -fast -x 1280 -y 720 -fflags nobuffer -flags low_delay -strict experimental -vf "setpts=N/60/TB" -af "asetpts=N/60/TB" -noframedrop -i rtmp://url_here
+## a lot of those args arent needed, here is what I ended up with:
+# #ffplay -f live_flv -fflags nobuffer -flags low_delay -i rtmp://localhost/live
 #
-pi nginx libnginx-mod-rtmp
-
+# A problem with rtmp is that it doesn't support vp8/vp9, requiring the partly patent encumbered h264.
+# Looking at alternative protocols: dash & hls are both high latency, I tested dash with the nginx-rtmp
+# module and got about 5 seconds of latency, web results imply that is normal.
+#
+# Webrtc is what jitsi & bbb use, but an annoying thing is that
+# generally requires a web browser with javascript, or some special
+# client, and afaik, it has a smaller limit on number of clients.
+#
+# Another option is to try rtp/rtsp, there are some servers here:
+# https://en.wikipedia.org/wiki/Real-Time_Streaming_Protocol
+
+
+## reference for setting up rtmp
+# pi nginx libnginx-mod-rtmp
+# cat >/etc/nginx/modules-enabled/rtmp.conf <<'EOF'
+## based on https://opensource.com/article/19/1/basic-live-video-streaming-server#comments
+## and https://github.com/arut/nginx-rtmp-module/wiki/Directives
+
+# rtmp {
+#     allow publish 127.0.0.1;
+#     deny publish all;
+#     server {
+#         listen 1935;
+#         application live {
+#             live on;
+#             record off;
+#         }
+#     }
+# }
+# EOF
 
 ### end live streaming ###
 
@@ -2091,6 +2153,13 @@ m /a/bin/buildscripts/tor-browser
 s ln -sf /a/opt/tor-browser/Browser/start-tor-browser /usr/local/bin
 
 
+case $HOSTNAME in
+  kd)
+    web-conf -p 4500 -f 4533 -e ian@iankelling.org apache2 b8.nz
+    sgo navidrome
+    ;;
+esac
+
 # nfs server
 pi-nostart nfs-kernel-server