improve stream testing script (#2549)

* merge testContent.sh into ocContent.sh

* detect ffmpeg

ffmpeg or ffmpeg.exe in path, current dir, or parent dir

* use ocTestStream in api test

* enable verbose logging for api tests

* log ffmpeg version

* change ffmpeg lookup order

* set path properly for using the local ffmpeg

* rm double space from transcoder error logs

* update tests for new video stream

do not test bitrate

* set test stream target to 127.0.0.1

* log ffmpeg path

* update ffmpeg to v4.4.1

* improve logs

* fix ffmpeg installer script

* fix api test runner

* fix logs

* install fonts

* cleanup

* use ocTestStream.sh for all automated tests

* cleanup ocTestStream.sh

* cleanup test/automated/hls/run.sh

* Fix misspell

* fix ffmpeg installer in automated test runners

* spell fix

* cleanup script

* rev quick api tests

* cleanup tmp paths properly in automated tests

* rm unused ffmpeg package

* cleanup

* fix s3 test

* cache ffmpeg bin for automated tests

* shellcheck allow source

* rm missplaced file if backup fails

* use ffmpeg full path

* set lookup path for shellcheck

test/automated/hls/run.sh

@@ -2,12 +2,7 @@
 
 set -e
 
-function start_stream() {
-  # Start streaming the test file over RTMP to
-  # the local owncast instance.
-  ffmpeg -hide_banner -loglevel panic -stream_loop -1 -re -i ../test.mp4 -vcodec libx264 -profile:v main -sc_threshold 0 -b:v 1300k -acodec copy -f flv rtmp://127.0.0.1/live/abc123 &
-  STREAMING_CLIENT=$!
-}
+source ../tools.sh
 
 function update_storage_config() {
   echo "Configuring external storage to use ${S3_BUCKET}..."
@@ -23,15 +18,7 @@ TEMP_DB=$(mktemp)
 # Install the node test framework
 npm install --silent >/dev/null
 
-# Download a specific version of ffmpeg
-if [ ! -d "ffmpeg" ]; then
-  mkdir ffmpeg
-  pushd ffmpeg >/dev/null
-  curl -sL https://github.com/vot/ffbinaries-prebuilt/releases/download/v4.2.1/ffmpeg-4.2.1-linux-64.zip --output ffmpeg.zip >/dev/null
-  unzip -o ffmpeg.zip >/dev/null
-  PATH=$PATH:$(pwd)
-  popd >/dev/null
-fi
+ffmpegInstall
 
 pushd ../../.. >/dev/null
 
@@ -40,18 +27,19 @@ go build -o owncast main.go
 ./owncast -database "$TEMP_DB" &
 SERVER_PID=$!
 
-function finish {
-  echo "Cleaning up..."
-  rm "$TEMP_DB"
-  kill $SERVER_PID $STREAMING_CLIENT
-}
-trap finish EXIT
-
 popd >/dev/null
 sleep 5
 
 # Start the stream.
-start_stream
+../../ocTestStream.sh &
+STREAMING_CLIENT=$!
+
+function finish {
+  echo "Cleaning up..."
+  kill $SERVER_PID $STREAMING_CLIENT
+  rm -fr "$TEMP_DB" "$FFMPEG_PATH"
+}
+trap finish EXIT
 
 echo "Waiting..."
 sleep 13
@@ -73,7 +61,9 @@ sleep 5
 update_storage_config
 
 # start the stream.
-start_stream
+../../ocTestStream.sh &
+STREAMING_CLIENT=$!
+
 echo "Waiting..."
 sleep 13