update

ffmpeg_cut_tail

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Check if all required arguments are provided
+if [ $# -lt 3 ]; then
+    echo "Usage: $0 <input_file> <output_file> <start_time>"
+    echo ""
+    echo "Arguments:"
+    echo "  <input_file>   Path to the input video file."
+    echo "  <output_file>  Path to the output video file."
+    echo "  <start_time>   Start time in format HH:MM:SS or seconds."
+    echo ""
+    echo "Example:"
+    echo "  $0 input.mp4 output.mp4 00:01:00"
+    echo ""
+    echo "Note: The output file will start from <start_time> and will include all remaining content of the input file."
+    exit 1
+fi
+
+# Assign input arguments to variables
+input_file=$1
+output_file=$2
+start_time=$3
+
+# Check if the input file exists
+if [ ! -f "$input_file" ]; then
+    echo "Error: The input file '$input_file' does not exist."
+    exit 1
+fi
+
+# Run the ffmpeg command
+ffmpeg -i "$input_file" -ss "$start_time" -vcodec copy -acodec copy "$output_file"
+
+# Check if the ffmpeg command succeeded
+if [ $? -eq 0 ]; then
+    echo "Video extraction completed successfully. Output saved to '$output_file'."
+else
+    echo "Error: ffmpeg failed to extract the video."
+    exit 1
+fi