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https://github.com/kuhyx/scripts.git
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68 lines
1.7 KiB
Bash
68 lines
1.7 KiB
Bash
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#!/bin/bash
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# Default values
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TARGET_EXT="mp4"
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TARGET_SIZE=10M
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# Parse arguments
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if [ -n "$1" ]; then
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INPUT_PATH="$1"
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else
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INPUT_PATH="."
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fi
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if [ -n "$2" ]; then
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TARGET_EXT="$2"
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fi
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if [ -n "$3" ]; then
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TARGET_SIZE="$3"
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fi
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# Create output directory
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OUTPUT_DIR="converted"
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mkdir -p "$OUTPUT_DIR"
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# Function to convert video
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convert_video() {
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local input_file="$1"
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local output_file="$OUTPUT_DIR/${input_file%.*}.$TARGET_EXT"
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# Get video duration in seconds
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DURATION=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$input_file")
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echo "Duration: $DURATION seconds"
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# Convert target size to bytes
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TARGET_SIZE_BYTES=$(numfmt --from=iec "$TARGET_SIZE")
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# Calculate target bitrate in kilobits per second
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TARGET_BITRATE=$(echo "($TARGET_SIZE_BYTES * 8) / $DURATION / 2000" | bc) # Reduce by 10% to ensure size is below target
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# Convert video
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ffmpeg -i "$input_file" -b:v "${TARGET_BITRATE}k" -c:a copy "$output_file"
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# Get original and converted video sizes
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ORIGINAL_SIZE=$(stat -c%s "$input_file")
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CONVERTED_SIZE=$(stat -c%s "$output_file")
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# Print out details
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echo "Original size: $(numfmt --to=iec $ORIGINAL_SIZE)"
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echo "Video length: $DURATION seconds"
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echo "Target size: $TARGET_SIZE"
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echo "Converted size: $(numfmt --to=iec $CONVERTED_SIZE)"
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echo "Target bitrate: ${TARGET_BITRATE}kbps"
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}
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# Export function for find command
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export -f convert_video
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export TARGET_EXT
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export TARGET_SIZE
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export OUTPUT_DIR
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# Find and convert videos
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if [ -d "$INPUT_PATH" ]; then
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find "$INPUT_PATH" -type f -name "*.mp4" -o -name "*.mkv" -o -name "*.avi" -o -name "*.webm" -exec bash -c 'convert_video "$0"' {} \;
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else
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convert_video "$INPUT_PATH"
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fi
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