initial commit

ffmpeg/ffmpeg-batch-encode.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Help function
+
+Help()
+{
+   # Display Help
+   echo "This script uses sensible ffmpeg options to batch encode MKV files in a directory to compressed H264 MKVs."
+   echo "You can change the CRF parameters in the script, defaults are 24 for HD and 22 for 4K."
+   echo
+   echo "SYNTAX: ./ffmpeg-encode.sh 'INPUT DIRECTORY'"
+   echo "EXAMPLE: ./ffmpeg-encode.sh ~/Videos/Movies"
+   echo
+   echo "Learn more about FFmpeg's quality settings: https://trac.ffmpeg.org/wiki/Encode/H.264"
+}
+
+### Script ###
+
+DIRECTORY=$1
+QUALITY_HD=22
+QUALITY_4K=24
+
+# Basic error handling
+if [ -z "$1" ]; then
+    printf "ERROR: You must specify a source directory\n\n" 1>&2
+    Help
+    exit 1
+fi
+
+# Create output folder within source directory
+if [ ! -d "$DIRECTORY/output" ]; then
+    mkdir "$DIRECTORY/output"
+fi
+
+# Encode each file in the directory with different CRF setting based on resolution
+for FILE in "$DIRECTORY"/*; do
+    RES=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=noprint_wrappers=1:nokey=1 "$FILE")
+    FILENAME=$(basename "$FILE")
+        if [[ $RES -gt 1920 ]]; then
+            ffmpeg -i "$FILE" -c:v libx264 -preset slow -tune film -crf "$QUALITY_4K" -c:a copy "$DIRECTORY"/output/"$FILENAME"
+        elif [[ $RES -le 1920 ]]; then
+            ffmpeg -i "$FILE" -c:v libx264 -preset slow -tune film -crf "$QUALITY_HD" -c:a copy "$DIRECTORY"/output/"$FILENAME"
+        else
+            echo "$FILENAME is not a valid filetype"
+        fi
+done
+
+exit 0