extract_frame.sh

#!/bin/bash

# Usage: ./extract_frame.sh [path_to_video] [frame_time]
# - path_to_video: The path to the video file.
# - frame_time: The specific time in the video to capture a frame, in seconds (e.g., "00:01:23" or "90" for 90 seconds).
#   Default is the last frame.

# Check for required tools: ffmpeg and pngpaste
if ! command -v ffmpeg &> /dev/null; then
  echo "ffmpeg is required but not installed. Install it with 'brew install ffmpeg'."
  exit 1
fi

if ! command -v pngpaste &> /dev/null; then
  echo "pngpaste is required but not installed. Install it with 'brew install pngpaste'."
  exit 1
fi

# Input arguments
VIDEO_PATH=${1:-"sample.mp4"}  # Default to "sample.mp4" if not provided
FRAME_TIME=${2:-""}            # If not provided, defaults to last frame

# Generate output filename
OUTPUT_FILE="extracted_frame.png"

# Extract frame
if [ -z "$FRAME_TIME" ]; then
  # Get duration if frame time not provided
  FRAME_TIME=$(ffmpeg -i "$VIDEO_PATH" 2>&1 | grep "Duration" | awk '{print $2}' | tr -d ,)
fi

ffmpeg -i "$VIDEO_PATH" -vf "select=gte(t\,$FRAME_TIME)" -vframes 1 "$OUTPUT_FILE" -y

# Copy to clipboard
pngpaste "$OUTPUT_FILE"

echo "Frame extracted and copied to clipboard: $OUTPUT_FILE"