Add compatibility to MP4 output

Author: xeger

.github/workflows/main.yml

@@ -57,7 +57,7 @@ jobs:
       - name: Start Screen Recording
         run: |
           mkdir -p $PWD/videos
-          no_close=#--no-close # uncomment to see ffmpeg output (i.e. leave stdio open)
+          no_close=--no-close # uncomment to see ffmpeg output (i.e. leave stdio open)
           start-stop-daemon $no_close --start --quiet --pidfile ~/var/run/ffmpeg.pid --make-pidfile --background --exec /usr/bin/ffmpeg -- -nostdin -f x11grab -video_size 1280x1024 -framerate 10 -i ${DISPLAY}.0+0,0 $PWD/videos/test.mp4
           # pid=`cat ~/var/run/ffmpeg.pid`
           # echo "Waiting for ffmpeg (pid $pid) to start recording (display $DISPLAY)..."
@@ -76,7 +76,7 @@ jobs:
         run: |
           start-stop-daemon --stop --pidfile ~/var/run/ffmpeg.pid
           sleep 3
-          ffmpeg -i $PWD/videos/test.mp4 -f mov $PWD/videos/test.mov
+          ffmpeg -i $PWD/videos/test.mp4 -vf format=yuv420p $PWD/videos/test-yuv420p.mp4
         if: always() && runner.os == 'Linux'
       - name: Archive Screen Recording
         uses: actions/upload-artifact@v3