extract_1st_frame_as_image.sh

#!/bin/bash

INPUT_DIR="UPLOAD"
OUTPUT_DIR="frames"
MAX_WIDTH=1920
QUALITY=80
FORMAT="webp"  # can be webp, jpg, or png

mkdir -p "$OUTPUT_DIR"

clean_filename() {
    echo "$1" | tr ' ' '_' | tr -cd '[:alnum:]._-'
}

total_files=$(find "$INPUT_DIR" -type f \( -name "*.mp4" -o -name "*.mov" -o -name "*.webm" -o -name "*.avi" -o -name "*.mkv" \) | wc -l)
current=0

find "$INPUT_DIR" -type f \( -name "*.mp4" -o -name "*.mov" -o -name "*.webm" -o -name "*.avi" -o -name "*.mkv" \) | while read -r video; do
    ((current++))
    
    filename=$(basename "$video")
    name=$(clean_filename "${filename%.*}")
    
    echo "[$current/$total_files] Processing: $filename"
    
    if ffmpeg -i "$video" \
        -vframes 1 \
        -f image2 \
        -c:v "$FORMAT" \
        -quality "$QUALITY" \
        -filter:v "scale='min($MAX_WIDTH,iw)':-1" \
        -metadata title="" \
        "$OUTPUT_DIR/${name}_frame.$FORMAT" 2>/dev/null; then
        echo "✓ Success: $OUTPUT_DIR/${name}_frame.$FORMAT"
    else
        echo "✗ Error processing: $filename"
    fi
done

echo "Complete! Processed $total_files videos."
echo "Frames saved in: $OUTPUT_DIR"