Compress-File

To improve your approach for file compression in Python, here's an alternative method that uses different strategies for compressing various file types while ensuring that the compression is as efficient as possible based on the file format. This method utilizes the right tools and techniques based on the file type and applies better practices for efficient compression. Key Changes:

MP3 and MP4 Compression with FFmpeg: Compressing audio and video files by reducing their bitrate. You can also adjust resolution or audio sample rate for video/audio.

Zip for Document Files: Using zipfile for .docx, .pdf, and text files, while retaining a higher compression ratio for non-binary file formats.

Efficient Compression with Gzip: Applying gzip only to suitable files (text-based files), and ensuring it's handled properly to prevent unnecessary decompression overhead.

Improved Python Script for File Compression

import zipfile import gzip import shutil import os from pathlib import Path import ffmpeg

Function to compress text files (.txt)

def compress_text_file(file_path): output_path = file_path + '.gz' with open(file_path, 'rb') as f_in: with gzip.open(output_path, 'wb') as f_out: shutil.copyfileobj(f_in, f_out) print(f"Text file {file_path} compressed to {output_path}")

Function to compress word documents (.docx)

def compress_docx_file(file_path): output_path = file_path + '.zip' with zipfile.ZipFile(output_path, 'w', zipfile.ZIP_DEFLATED) as docx_zip: docx_zip.write(file_path, os.path.basename(file_path)) print(f"Word document {file_path} compressed to {output_path}")

Function to compress PDF files (.pdf)

def compress_pdf_file(file_path): output_path = file_path + '.zip' with zipfile.ZipFile(output_path, 'w', zipfile.ZIP_DEFLATED) as pdf_zip: pdf_zip.write(file_path, os.path.basename(file_path)) print(f"PDF file {file_path} compressed to {output_path}")

Function to compress MP3 files (.mp3)

def compress_mp3_file(file_path): output_path = file_path.replace('.mp3', '_compressed.mp3') # Compressing audio using ffmpeg to reduce bitrate (example 128k) ffmpeg.input(file_path).output(output_path, audio_bitrate='128k').run() print(f"MP3 file {file_path} compressed to {output_path}")

Function to compress MP4 files (.mp4)

def compress_mp4_file(file_path): output_path = file_path.replace('.mp4', '_compressed.mp4') # Compressing video using ffmpeg to reduce bitrate for both video and audio ffmpeg.input(file_path).output(output_path, video_bitrate='1000k', audio_bitrate='128k').run() print(f"MP4 file {file_path} compressed to {output_path}")

Function to handle the compression of various files

def compress_file(file_path): ext = Path(file_path).suffix.lower()

if ext == '.txt':
    compress_text_file(file_path)
elif ext == '.docx':
    compress_docx_file(file_path)
elif ext == '.pdf':
    compress_pdf_file(file_path)
elif ext == '.mp3':
    compress_mp3_file(file_path)
elif ext == '.mp4':
    compress_mp4_file(file_path)
else:
    print(f"Unsupported file type: {file_path}")

Example of how to use the function

if name == "main": # Provide paths to your files files_to_compress = [ "example.txt", # Text file "example.docx", # Word document "example.pdf", # PDF file "example.mp3", # MP3 file "example.mp4" # MP4 file ]

for file in files_to_compress:
    compress_file(file)

Breakdown of Changes and Functions:

Text Files (.txt):

    The compress_text_file function uses gzip to compress .txt files. The .gz format is well-suited for text data and provides high compression rates for such file types.

Word Documents (.docx):

    The compress_docx_file function re-zips .docx files using zipfile. .docx files are already ZIP archives, but re-zipping them with compression can result in slight size reduction.

PDF Files (.pdf):

    PDFs are also compressed using zipfile. While .pdf files may not be highly compressible, zipping them can help achieve some compression if they contain redundant data.

MP3 Files (.mp3):

    The compress_mp3_file function uses ffmpeg to reduce the bitrate of the MP3 file to 128k. This is a simple way to reduce the size of audio files, but remember that too much compression may degrade the audio quality.

MP4 Files (.mp4):

    The compress_mp4_file function uses ffmpeg to reduce both video and audio bitrates (to 1000k for video and 128k for audio). This helps reduce the file size of video files while maintaining an acceptable level of quality.

Installation Requirements:

Make sure you install the required libraries to handle compression and audio/video processing.

pip install ffmpeg-python

You may also need to install ffmpeg on your system for the ffmpeg-python package to work properly. Instructions for installation can be found here. Notes on Compression:

Text-Based Files: For text files like .txt, .pdf, or .docx, gzip or zip compression algorithms are efficient.

MP3 and MP4 Files: Audio and video files are already compressed, so using ffmpeg to re-encode them with a lower bitrate can significantly reduce file size. However, be cautious as overly compressing these files can lead to quality loss.

PDF Files: PDFs typically contain images or complex formatting, so compression may not result in significant size reduction unless the files contain large uncompressed elements.

Conclusion:

This Python script offers an efficient way to compress various file types using appropriate compression techniques, including gzip for text, zip for document files, and ffmpeg for compressing media files (audio and video). Each type of file has its ideal method for compression, and this script makes sure that the most suitable method is applied based on the file format.