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December 4, 2019 13:07
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Transcode h264 to h265
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| #! /bin/bash | |
| set -x | |
| set -e | |
| FOLDER="$1" | |
| MAX_BITRATE=3000000 | |
| if [ ! -d "$FOLDER" ]; then | |
| echo "Please input a folder" | |
| exit 1 | |
| fi | |
| transcode () { | |
| local input_file="$1" | |
| local output_file="$2" | |
| local tmp_file="tmp-$output_file" | |
| nice -n 10 ffmpeg -y -i "$FOLDER/$input_file" -map 0 -c copy -c:v libx265 -x265-params crf=28 "$FOLDER/$tmp_file" | |
| result=$? | |
| if [ $result -ne 0 ]; then | |
| echo "Error during process" | |
| rm -rf "$FOLDER/$tmp_file" | |
| exit 2 | |
| fi | |
| rm -f "$FOLDER/$input_file" | |
| mv "$FOLDER/$tmp_file" "$FOLDER/$output_file" | |
| } | |
| SAVEIFS=$IFS | |
| IFS=$(echo -en "\n\b") | |
| VIDEO_FILES=$(ls -1 "$FOLDER" | grep -E '.avi$|mkv$|mp4$') | |
| H264_FILES=() | |
| for file in $VIDEO_FILES; do | |
| codec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 "$FOLDER/$file") | |
| if [ "$codec" = "h264" ]; then | |
| H264_FILES+=("$file") | |
| elif [ "$codec" = "mpeg4" ]; then | |
| H264_FILES+=("$file") | |
| elif [ "$codec" = "hevc" ]; then | |
| bit_rate=$(ffprobe -v error -select_streams v:0 -show_entries format=bit_rate -of default=noprint_wrappers=1:nokey=1 "$FOLDER/$file") | |
| if [ "$bit_rate" -gt "$MAX_BITRATE" ]; then | |
| echo "transcode h265 file $file bitrate=$bit_rate" | |
| H264_FILES+=("$file") | |
| fi | |
| fi | |
| done | |
| IFS=$SAVEIFS | |
| ORIGINAL_SIZE=$(du -sh "$FOLDER" | awk '{print $1}') | |
| echo "Transcoding files: ${H264_FILES[@]}" | |
| for input_file in "${H264_FILES[@]}"; do | |
| echo "Taking file $input_file" | |
| output_file=${input_file//264/265} | |
| if [[ "$output_file" != *"265"* ]]; then | |
| output_file=$(sed -e "s/\.mkv/\.x265\.mkv/; s/\.avi/\.x265.mkv/; s/\.mp4/\.x265.mkv/;" <<< "$input_file") | |
| fi | |
| #if [ ! -f "$FOLDER/$output_file" ]; then | |
| # transcode "$input_file" "$output_file" | |
| #fi | |
| transcode "$input_file" "$output_file" | |
| done | |
| FINAL_SIZE=$(du -sh "$FOLDER" | awk '{print $1}') | |
| echo "Transcoding reduced folder from $ORIGINAL_SIZE to $FINAL_SIZE" | |
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