127 lines
3.9 KiB
Bash
Executable File
127 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# Video Optimization Script for Web
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# Optimizes video-intro.mp4 for web use while preserving quality
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set -e
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VIDEO_DIR="public/assets/video"
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INPUT_FILE="${VIDEO_DIR}/video-intro.mp4"
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OUTPUT_FILE="${VIDEO_DIR}/video-intro-optimized.mp4"
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BACKUP_FILE="${VIDEO_DIR}/video-intro-backup-$(date +%Y%m%d-%H%M%S).mp4"
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echo "🎬 Video Optimization Script"
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echo "============================"
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echo ""
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# Check if FFmpeg is installed
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if ! command -v ffmpeg &> /dev/null; then
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echo "❌ FFmpeg is not installed."
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echo ""
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echo "Install it with:"
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echo " macOS: brew install ffmpeg"
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echo " Linux: sudo apt install ffmpeg"
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echo " Windows: Download from https://ffmpeg.org/download.html"
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exit 1
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fi
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# Check if input file exists
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if [ ! -f "$INPUT_FILE" ]; then
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echo "❌ Input file not found: $INPUT_FILE"
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exit 1
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fi
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echo "📹 Input file: $INPUT_FILE"
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INPUT_SIZE=$(du -h "$INPUT_FILE" | cut -f1)
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echo " Size: $INPUT_SIZE"
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echo ""
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# Get video info
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echo "📊 Analyzing video..."
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DURATION=$(ffprobe -v quiet -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$INPUT_FILE" 2>/dev/null || echo "unknown")
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RESOLUTION=$(ffprobe -v quiet -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "$INPUT_FILE" 2>/dev/null || echo "unknown")
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echo " Duration: ${DURATION}s"
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echo " Resolution: ${RESOLUTION}"
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echo ""
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# Create backup
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echo "💾 Creating backup..."
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cp "$INPUT_FILE" "$BACKUP_FILE"
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echo " Backup saved to: $BACKUP_FILE"
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echo ""
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# Optimize video for web (target ~1MB)
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echo "⚙️ Optimizing video for web (target ~1MB)..."
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echo " Using H.264 with optimized settings"
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echo " Preset: slow (best compression efficiency)"
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echo " Resolution: 1280x720 (HD, good quality)"
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echo " Frame rate: 30fps (smooth playback)"
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echo ""
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ffmpeg -i "$INPUT_FILE" \
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-c:v libx264 \
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-preset slow \
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-crf 28 \
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-profile:v high \
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-level 4.0 \
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-pix_fmt yuv420p \
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-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2" \
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-r 30 \
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-c:a aac \
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-b:a 64k \
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-ar 44100 \
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-movflags +faststart \
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-threads 0 \
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-y \
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"$OUTPUT_FILE" 2>&1 | grep -E "(Duration|Stream|frame|size|time)" || true
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if [ $? -eq 0 ]; then
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echo ""
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echo "✅ Optimization complete!"
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echo ""
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OUTPUT_SIZE=$(du -h "$OUTPUT_FILE" | cut -f1)
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OUTPUT_BYTES=$(stat -f%z "$OUTPUT_FILE" 2>/dev/null || stat -c%s "$OUTPUT_FILE" 2>/dev/null)
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OUTPUT_MB=$(echo "scale=2; $OUTPUT_BYTES / 1024 / 1024" | bc 2>/dev/null || echo "unknown")
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echo "📊 Results:"
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echo " Original size: $INPUT_SIZE"
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echo " Optimized size: $OUTPUT_SIZE (~${OUTPUT_MB}MB)"
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# Calculate compression ratio
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ORIGINAL_BYTES=$(stat -f%z "$INPUT_FILE" 2>/dev/null || stat -c%s "$INPUT_FILE" 2>/dev/null)
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if [ -n "$ORIGINAL_BYTES" ] && [ -n "$OUTPUT_BYTES" ]; then
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RATIO=$(echo "scale=1; ($ORIGINAL_BYTES - $OUTPUT_BYTES) * 100 / $ORIGINAL_BYTES" | bc)
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echo " Size reduction: ${RATIO}%"
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# Check if target achieved
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TARGET_BYTES=1048576 # 1MB in bytes
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if [ "$OUTPUT_BYTES" -gt "$TARGET_BYTES" ]; then
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EXCESS=$(echo "scale=1; ($OUTPUT_BYTES - $TARGET_BYTES) / 1024 / 1024" | bc)
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echo ""
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echo "⚠️ File size is ${EXCESS}MB over 1MB target"
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echo " Consider using CRF 30-32 for smaller file size"
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else
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echo ""
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echo "✅ Target achieved! File is under 1MB"
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fi
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fi
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echo ""
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echo "🔄 Replacing original file..."
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mv "$OUTPUT_FILE" "$INPUT_FILE"
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echo " ✅ Original file replaced with optimized version"
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echo ""
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echo "💡 To restore backup:"
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echo " mv \"$BACKUP_FILE\" \"$INPUT_FILE\""
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else
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echo ""
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echo "❌ Optimization failed. Original file preserved."
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rm -f "$OUTPUT_FILE"
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exit 1
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fi
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echo ""
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echo "✨ Done! Video optimized for web (~1MB target)."
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