Convert nu scripts to sh

Resolve #503

README.md

@@ -73,7 +73,7 @@ ffmpeg \
 
 ### GStreamer Broadcasting
 
-See the example script [here](examples/gstreamer-broadcast.nu).
+See the example script [here](examples/gstreamer-broadcast.sh).
 
 Can broadcast gstreamer's test sources, or pulsesrc+v4l2src
 
@@ -83,9 +83,9 @@ Use of example scripts:
 
 ```shell
 # testsrcs
-./examples/gstreamer-broadcast.nu http://localhost:8080/api/whip testStream1
+./examples/gstreamer-broadcast.sh http://localhost:8080/api/whip testStream1
 # v4l2src
-./examples/gstreamer-broadcast.nu http://localhost:8080/api/whip testStream1 v4l2
+./examples/gstreamer-broadcast.sh http://localhost:8080/api/whip testStream1 v4l2
 ```
 
 ### Playback

examples/gstreamer-broadcast.nu

@@ -1,34 +0,0 @@
-#!/usr/bin/env nu
-
-def main [ whip_endpoint: string, auth_token: string, stream_type = "testsrc" ] {
-  mut srcelem = []
-  mut audioelem = []
-  
-  if $stream_type == "testsrc" {
-    $srcelem =  [ videotestsrc pattern=smpte-rp-219 ]
-    $audioelem = [ audiotestsrc wave=8 ]
-  } else {
-    $srcelem = [ v4l2src "device=/dev/video1" ]
-    $audioelem = [ pulsesrc "device=alsa_input.usb-MACROSILICON_USB3._0_capture-02.analog-stereo" ]
-  }
-  
-  (gst-launch-1.0 -v
-  $srcelem
-    ! videoconvert
-    ! x264enc tune="zerolatency"
-    ! rtph264pay
-    ! application/x-rtp,media=video,encoding-name=H264,payload=97,clock-rate=90000
-    ! whip0.sink_0
-  $audioelem
-    ! audioconvert
-    ! opusenc
-    ! rtpopuspay
-    ! application/x-rtp,media=audio,encoding-name=OPUS,payload=96,clock-rate=48000,encoding-params=(string)2
-    ! whip0.sink_1
-  whipsink
-    name=whip0
-    use-link-headers=true
-    $"whip-endpoint=($whip_endpoint)"
-    $"auth-token=($auth_token)"
-  )
-}

examples/gstreamer-broadcast.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env sh
+
+if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then
+  echo "Usage: $0 <whip_endpoint> <auth_token> [testsrc|v4l2]" >&2
+  exit 1
+fi
+
+whip_endpoint=$1
+auth_token=$2
+stream_type=${3:-testsrc}
+
+if [ "$stream_type" = "testsrc" ]; then
+  srcelem="videotestsrc pattern=smpte-rp-219"
+  audioelem="audiotestsrc wave=8"
+else
+  srcelem="v4l2src device=/dev/video1"
+  audioelem="pulsesrc device=alsa_input.usb-MACROSILICON_USB3._0_capture-02.analog-stereo"
+fi
+
+gst-launch-1.0 -v \
+  $srcelem \
+  ! videoconvert \
+  ! x264enc tune=zerolatency \
+  ! rtph264pay \
+  ! "application/x-rtp,media=video,encoding-name=H264,payload=97,clock-rate=90000" \
+  ! whip0.sink_0 \
+  $audioelem \
+  ! audioconvert \
+  ! opusenc \
+  ! rtpopuspay \
+  ! "application/x-rtp,media=audio,encoding-name=OPUS,payload=96,clock-rate=48000,encoding-params=(string)2" \
+  ! whip0.sink_1 \
+  whipsink \
+    name=whip0 \
+    use-link-headers=true \
+    whip-endpoint="$whip_endpoint" \
+    auth-token="$auth_token"

examples/gstreamer-whep-to-rtmp.nu

@@ -1,26 +0,0 @@
-#!/usr/bin/env nu
-
-def main [whep_endpoint: string, whep_token: string, rtmp_location: string] {
-  (gst-launch-1.0
-    flvmux
-      streamable=true
-      name=flvmux
-    ! rtmpsink
-      $"location=($rtmp_location)"
-    whepsrc
-      name=whep
-      $"auth-token=($whep_token)"
-      $"whep-endpoint=($whep_endpoint)"
-      video-caps="application/x-rtp,payload=127,encoding-name=H264,media=video,clock-rate=90000"
-      audio-caps="application/x-rtp,payload=96,encoding-name=OPUS,media=audio,clock-rate=48000"
-    ! rtpopusdepay
-    ! fakesink
-    whep.
-    ! rtph264depay
-    ! h264parse
-    ! queue
-    ! flvmux.
-  )
-}
-
-

examples/gstreamer-whep-to-rtmp.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env sh
+
+if [ "$#" -ne 3 ]; then
+  echo "Usage: $0 <whep_endpoint> <whep_token> <rtmp_location>" >&2
+  exit 1
+fi
+
+whep_endpoint=$1
+whep_token=$2
+rtmp_location=$3
+
+gst-launch-1.0 \
+  flvmux \
+    streamable=true \
+    name=flvmux \
+  ! rtmpsink \
+    location="$rtmp_location" \
+  whepsrc \
+    name=whep \
+    auth-token="$whep_token" \
+    whep-endpoint="$whep_endpoint" \
+    video-caps="application/x-rtp,payload=127,encoding-name=H264,media=video,clock-rate=90000" \
+    audio-caps="application/x-rtp,payload=96,encoding-name=OPUS,media=audio,clock-rate=48000" \
+  ! rtpopusdepay \
+  ! fakesink \
+  whep. \
+  ! rtph264depay \
+  ! h264parse \
+  ! queue \
+  ! flvmux.