independet of where the videos are located

tools/combineVideos.sh

@@ -1,8 +1,6 @@
 #! /bin/bash
 
 # Combine two videos and slow down the result
-# make sure the files are in the same dir as this script since we
-# mount the current dir in Docker
 
 if [[ -z $1 || -z $2 ]]; then
   echo "Missing input parameters"
@@ -10,31 +8,38 @@ if [[ -z $1 || -z $2 ]]; then
   exit 1
 fi
 
-FILE1="$1"
-FILE2="$2"
+if [ ! -f "$1" ] || [ ! -f "$2" ] ; then
+    echo "File $1 or $2 not found!"
+    exit 1
+fi
+
+TMP_VIDEO_DIR=tmp-video
+FILE1=$(basename $1)
+FILE2=$(basename $2)
 OUTPUT_FILE=${3:-output_slow.mp4}
 SLOWDOWN=5.0
 
-if [ ! -f "$FILE1" ] || [ ! -f "$FILE2" ] ; then
-    echo "File $FILE1 or $FILE2 not found!"
-    exit 1
-fi
+# Move the videos to a tmp dir so it is easy to mount them in Docker
+mkdir $TMP_VIDEO_DIR
+cp $1 $TMP_VIDEO_DIR
+cp $2 $TMP_VIDEO_DIR
 
 echo "Combining $FILE1 with $FILE2"
 
 docker run -v "$(pwd)":/video sitespeedio/visualmetrics-deps ffmpeg \
-  -i "/video/$FILE1" \
-  -i "/video/$FILE2" \
+  -i "/video/$TMP_VIDEO_DIR/$FILE1" \
+  -i "/video/$TMP_VIDEO_DIR/$FILE2" \
   -filter_complex '[0:v]pad=iw*2:ih[int];[int][1:v]overlay=W/2:0[vid]' \
   -map [vid] \
   -c:v libx264 \
   -crf 23 \
   -preset veryfast \
-  /video/output.mp4  > /dev/null 2>&1
+  /video/$TMP_VIDEO_DIR/output.mp4  > /dev/null 2>&1
 
 echo "Slow down the video"
 
-docker run -v "$(pwd)":/video sitespeedio/visualmetrics-deps ffmpeg -i /video/output.mp4 -filter:v "setpts=$SLOWDOWN*PTS" /video/${OUTPUT_FILE}  > /dev/null 2>&1
-rm output.mp4
+docker run -v "$(pwd)":/video sitespeedio/visualmetrics-deps ffmpeg -i /video/$TMP_VIDEO_DIR/output.mp4 -filter:v "setpts=$SLOWDOWN*PTS" /video/${OUTPUT_FILE}  > /dev/null 2>&1
+# Cleanup
+rm -fR $TMP_VIDEO_DIR
 
-echo "Combined and slowed down video $OUTPUT_FILE"
+echo "Combined and slowed down video: $OUTPUT_FILE"