# Matches FFMpeg inputs
^\s{0,}Input\s{0,}\#                          # An Input starts with the literal 'Input', followed by a space a number sign
(?<FileNumber>\d+)                            # Followed by an file number and a comma
\,\s{0,}(?:(?<Container>[^\s\,]+)\,{0,}){0,}  # Followed by container information (separated by commas)
[\s\,]{0,}from                                # Followed by 'from'
\s{0,}(?<!\@)'(?<InputPath>(?:''|\\'|[^'])*)' # Followed by the InputPath, in a single quoted string.