From a080b68a79703e0bf9800ab2d647737dcedb13d6 Mon Sep 17 00:00:00 2001
From: Mathias Koehler <mail@mathias.im>
Date: Fri, 28 Apr 2023 07:25:41 +0200
Subject: [PATCH] Initial commit

---
 stream.sh    | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 testvideo.sh | 12 ++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100755 stream.sh
 create mode 100755 testvideo.sh

diff --git a/stream.sh b/stream.sh
new file mode 100755
index 0000000..871d1d2
--- /dev/null
+++ b/stream.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if ! command -v inotifywait >/dev/null 2>&1; then
+    echo "Please install inotify_utils"
+    exit 1
+fi
+
+
+declare -A STREAMS
+
+
+streaming() {
+  while true; do
+    echo "Streaming $1"
+    #echo ffmpeg -loglevel -8 -f v4l2 -framerate 30 -input_format mjpeg -i "/dev/$1" -f libndi_newtek -y "$1"
+    ~/ndi/ffmpeg/ffmpeg -f v4l2 -framerate 30 -input_format mjpeg -i "/dev/$1" -pix_fmt uyvy422 -f libndi_newtek -y "$1.mov"
+    echo "Failed $1; Restarting"
+    sleep 1
+  done
+}
+
+
+check_initial_devices() {
+  for file in /dev/video*; do
+    echo "Found ${file##*/}"
+    (streaming "${file##*/}") &
+    STREAMS[$file]=$!
+    echo "${file##*/} PID ${STREAMS[$file]}"
+  done
+}
+
+
+listen_for_new_devices() {
+  inotifywait -m /dev --format "%f" -e create |
+    while read -r file; do
+      echo "Found $file"
+      if [[ -v "STREAMS[$file]" && "$file" =~ video\d+$ ]]; then
+        (streaming "$file") &
+        STREAMS[$file]=$!
+        echo "$file PID ${STREAMS[$file]}"
+      fi
+    done
+}
+
+
+check_initial_devices
+listen_for_new_devices
diff --git a/testvideo.sh b/testvideo.sh
new file mode 100755
index 0000000..b06ce81
--- /dev/null
+++ b/testvideo.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+~/ndi/ffmpeg/ffmpeg \
+  -s 1280x720 \
+  -framerate '30' \
+  -f rawvideo \
+  -pix_fmt rgb24 \
+  -i /dev/zero \
+  -vf "drawbox=enable='mod(n,2)':w=iw:h=ih:c=green:t=ih*0.02,drawbox=enable='not(mod(n,2))':w=iw:h=ih:c=blue:t=ih*0.02,drawtext=text='':timecode='00\:00\:00\:00':rate=30000/1000:x=(w-tw)/2:y=h-(h-th)/2:fontcolor=white:fontsize=90:box=0" \
+  -pix_fmt uyvy422 \
+  -f libndi_newtek \
+  -y video1