Batch execution for FFMPEG

ffmpeg_batch.sh

#! /bin/bash

# Usage:
# ./ffmpeg_batch.sh mp4 mp4 original/ compressed/ "-vcodec libx265 -crf 28"
# ./ffmpeg_batch.sh mp4 m3u8 video_old/ video_new/ "-vcodec libx265 -crf 28 -start_number 0 -hls_time 3 -hls_list_size 0 -f hls"

if [ "$#" -ne 5 ]; then
  echo "Usage: INPUT_FORMAT OUTPUT_FORMAT INPUT_DIR OUPUT_DIR FFMPEG_OPTIONS" >&2
  exit 1
fi

srcExt=$1
destExt=$2

srcDir=$3
destDir=$4

opts=$5

for filename in "$srcDir"/*.$srcExt; do
    basePath=${filename%.*}
    baseName=${basePath##*/}

    ffmpeg -i "$filename" $opts "$destDir"/"$baseName"."$destExt"
done

echo "Conversion from ${srcExt} to ${destExt} complete!"