Fixed error where docker container was missing gifski dependency for creating gifs

Dockerfile

@@ -4,15 +4,18 @@ FROM node:buster-slim
 
 WORKDIR /src/
 
-
-
 COPY package.json package.json
 
 RUN ls -la
 
-# installs pandoc
+# installs ffmpeg and gifski v 1.3.3
 RUN apt-get update && \
-    apt-get install ffmpeg -y
+    apt-get install ffmpeg -y && \
+    apt-get install wget -y && \
+    cd /root && \
+    wget https://github.com/jrtechs/static-storage/raw/master/gifski.deb && \
+    dpkg -i /root/gifski.deb && \
+    rm /root/gifski.deb
 
 # installs node dependencies
 RUN npm install

videoManager.js

@@ -22,8 +22,8 @@ function createIndex(filename, videos, templateKey)
                 {
                     input: filename,
                     output: icon,
-                    width: 128,
-                    numFrames: 40
+                    width: 500,
+                    numFrames: 60
                 };
             console.log(options);
             generatePreview(options).then(function(metaData)