mirror of
https://github.com/skoobasteeve/useful-scripts.git
synced 2026-03-19 23:28:55 +00:00
69 lines
2.0 KiB
Bash
Executable File
69 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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### Help function ###
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Help()
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{
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# Display Help
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echo "This script uses sensible ffmpeg options to batch encode MKV files in a directory to compressed H264 MKVs."
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echo "You can change the CRF parameters in the script, defaults are 24 for HD and 22 for 4K."
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echo
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echo "SYNTAX: ./ffmpeg-encode.sh 'INPUT DIRECTORY'"
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echo "EXAMPLE: ./ffmpeg-encode.sh ~/Videos/Movies"
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echo
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echo "Learn more about FFmpeg's quality settings: https://trac.ffmpeg.org/wiki/Encode/H.264"
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}
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### Error function ###
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PROGNAME="$(basename $0)"
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error_exit()
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{
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# ----------------------------------------------------------------
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# Function for exit due to fatal program error
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# Accepts 1 argument:
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# string containing descriptive error message
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# ----------------------------------------------------------------
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echo "${PROGNAME}: ${1:-"Unknown Error"}" 1>&2
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exit 1
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}
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# Example call of the error_exit function. Note the inclusion
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# of the LINENO environment variable. It contains the current
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# line number.
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### Script ###
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DIRECTORY=$1
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QUALITY_HD=23
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QUALITY_4K=22
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# Check if source directory is provided
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if [ -z "$1" ] || [ ! -d "$1" ]; then
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printf "ERROR: You must specify a source directory\n\n" 1>&2
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Help
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exit 1
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fi
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# Create output folder within source directory
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if [ ! -d "$DIRECTORY/output" ]; then
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mkdir "$DIRECTORY/output"
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fi
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# Encode each file in the directory with different CRF setting based on resolution
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for FILE in "$DIRECTORY"/*.*; do
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RES=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=noprint_wrappers=1:nokey=1 "$FILE")
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FILENAME=$(basename "$FILE")
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if [[ $RES -gt 1920 ]]; then
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ffmpeg -i "$FILE" -c:v libx264 -preset slow -tune film -crf "$QUALITY_4K" -c:a copy "$DIRECTORY"/output/"$FILENAME"
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elif [[ $RES -le 1920 ]]; then
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ffmpeg -i "$FILE" -c:v libx264 -preset slow -tune film -crf "$QUALITY_HD" -c:a copy "$DIRECTORY"/output/"$FILENAME"
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fi
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done || error_exit "$LINENO: An error has occurred."
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exit 0 |