yeet

scripts/video-chop.sh

@@ -0,0 +1,72 @@
+#!/bin/bash
+
+# Video chop script - extracts a portion of a video file using ffmpeg
+# Usage: video-chop.sh <video_file> <start_seconds> <end_seconds>
+
+set -e
+
+# Check if all required parameters are provided
+if [ $# -ne 3 ]; then
+    echo "Usage: $0 <video_file> <start_seconds> <end_seconds>"
+    echo "Example: $0 /path/to/video.mp4 10 30"
+    echo "  This will extract from second 10 to second 30"
+    exit 1
+fi
+
+VIDEO_FILE="$1"
+START_SECONDS="$2"
+END_SECONDS="$3"
+
+# Validate that the video file exists
+if [ ! -f "$VIDEO_FILE" ]; then
+    echo "Error: Video file '$VIDEO_FILE' not found"
+    exit 1
+fi
+
+# Validate that start and end are numbers
+if ! [[ "$START_SECONDS" =~ ^[0-9]+\.?[0-9]*$ ]]; then
+    echo "Error: Start seconds must be a valid number"
+    exit 1
+fi
+
+if ! [[ "$END_SECONDS" =~ ^[0-9]+\.?[0-9]*$ ]]; then
+    echo "Error: End seconds must be a valid number"
+    exit 1
+fi
+
+# Validate that end is greater than start
+if (( $(echo "$END_SECONDS <= $START_SECONDS" | bc -l) )); then
+    echo "Error: End seconds must be greater than start seconds"
+    exit 1
+fi
+
+# Get the directory and filename
+DIRNAME=$(dirname "$VIDEO_FILE")
+BASENAME=$(basename "$VIDEO_FILE")
+
+# Get the file extension
+EXTENSION="${BASENAME##*.}"
+FILENAME="${BASENAME%.*}"
+
+# Generate timestamp prefix (YYYYMMDD_HHMMSS)
+TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
+
+# Create output filename with timestamp prefix
+OUTPUT_FILE="${DIRNAME}/${TIMESTAMP}_${FILENAME}.${EXTENSION}"
+
+# Calculate duration
+DURATION=$(echo "$END_SECONDS - $START_SECONDS" | bc)
+
+echo "Input file: $VIDEO_FILE"
+echo "Start: ${START_SECONDS}s"
+echo "End: ${END_SECONDS}s"
+echo "Duration: ${DURATION}s"
+echo "Output file: $OUTPUT_FILE"
+echo ""
+
+# Run ffmpeg to extract the portion
+# Using -ss before -i for fast seeking, and -t for duration
+ffmpeg -y -ss "$START_SECONDS" -i "$VIDEO_FILE" -t "$DURATION" -c copy "$OUTPUT_FILE"
+
+echo ""
+echo "Done! Output saved to: $OUTPUT_FILE"