51 hours to 31 hours

notebooks/create_full_matted.sh

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+#!/bin/bash
+
+# Exit immediately if a command exits with a non-zero status.
+set -e
+
+# Function to display informational messages in blue
+echo_info() {
+    echo -e "\033[1;34m[INFO]\033[0m $1"
+}
+
+# Function to display error messages in red
+echo_error() {
+    echo -e "\033[1;31m[ERROR]\033[0m $1"
+}
+
+# Function to display usage instructions
+usage() {
+    echo "Usage: $0 <segments_directory>"
+    echo "Example: $0 606-short_segments"
+    exit 1
+}
+
+# Check if exactly one argument is provided
+if [ "$#" -ne 1 ]; then
+    echo_error "Incorrect number of arguments."
+    usage
+fi
+
+# Assign the first argument to SEGMENTS_DIR
+SEGMENTS_DIR="$1"
+
+# Resolve the absolute path of SEGMENTS_DIR
+SEGMENTS_DIR=$(realpath "$SEGMENTS_DIR")
+
+# Check if the provided argument is a directory
+if [ ! -d "$SEGMENTS_DIR" ]; then
+    echo_error "The provided path '$SEGMENTS_DIR' is not a directory or does not exist."
+    exit 1
+fi
+
+echo_info "Segments directory set to: $SEGMENTS_DIR"
+
+
+# Check if ffmpeg is installed
+if ! command -v ffmpeg &> /dev/null; then
+    echo_error "ffmpeg could not be found. Please install ffmpeg and ensure it's in your PATH."
+    exit 1
+fi
+
+# Create a temporary file to store the list of videos to concatenate
+concat_list=$(mktemp)
+
+# Ensure the temporary file is deleted on script exit
+trap "rm -f $concat_list" EXIT
+
+# Iterate over each segment directory within SEGMENTS_DIR in sorted order
+# Assuming segments are named as segment_1, segment_2, etc.
+for segment_dir in "$SEGMENTS_DIR"/segment_*; do
+    if [ -d "$segment_dir" ]; then
+        segment_name=$(basename "$segment_dir")
+        echo_info "Processing segment: $segment_name"
+
+        # Define the path to output-matted.mp4
+        output_matted="$segment_dir/output-matted.mp4"
+
+        # Check if output-matted.mp4 exists
+        if [ ! -f "$output_matted" ]; then
+            echo_error "  '$output_matted' does not exist. Skipping this segment."
+            continue
+        fi
+
+        # Append the file path to the concat list in the required format
+        echo "file '$output_matted'" >> "$concat_list"
+        echo_info "  Added '$output_matted' to the concatenation list."
+
+
+    else
+        echo_error "'$segment_dir' is not a directory. Skipping."
+    fi
+done
+
+
+# Check if the concat list has at least one file
+if [ ! -s "$concat_list" ]; then
+    echo_error "No 'output-matted.mp4' files found in the provided segments directory."
+    exit 1
+
+fi
+
+
+echo_info "Starting concatenation of videos..."
+
+# Define the output file path
+output_full="full_output_matted.mp4"
+
+# Execute ffmpeg to concatenate videos using the concat demuxer
+ffmpeg -f concat -safe 0 -i "$concat_list" -c copy "$output_full" \
+    && echo_info "Successfully created '$output_full' in $(pwd)"
+
+echo_info "Concatenation process completed."
+
+