danPoku / image_video_compression

Code compresses images and videos into subfolders within the location of the original files

Image and Video Compression Script

Author: Dan G. Poku ([e-mail])
Date: April 15, 2023

Image Compression Script (img_compress.py)

Description

This script compresses (at 50%) all image files in a folder and its subfolders, saving them in a separate folder. It avoids recompressing previously compressed files.

Requirements

• Python 3.x
• OpenCV (cv2) library

Usage

1. Place the script in the root folder containing the images you want to compress.

2. Ensure the destination_path.py file is present in the same directory as the script.

3. Open a terminal or command prompt and navigate to the root folder.

4. Run the following command:

python img_compress.py

The script will recursively compress all image files (.jpg and .png) in the root folder and its subfolders, saving the compressed images in a "compressed_images" folder within each folder containing the original images.

5. Once the script completes, the compressed images will be available in their respective "compressed_images" folders.

Logging

The script logs its progress and any errors encountered during execution to the image_compression.log file.

Functionality

The script provides the following functions:

get_folder_path() -> str

Returns the folder path of the Python script.

create_destination_folder(folder_path: str) -> str

Creates a new folder within the given folder path to store the compressed images.

get_compressed_files(destination_folder: str) -> List[str]

Retrieves a list of previously compressed file names in the destination folder to avoid recompression.

compress_image(img_path: str, compressed_files: List[str], destination_folder: str) -> None

Compresses an image and saves it in another folder within the same folder.

compress_images() -> None

Compresses all image files in the root folder and its subfolders.

Note: The script uses OpenCV's cv2 library to read and compress images.

Video Compression Script (vid_compress.py)

Description

This script compresses all .mp4 files in a folder and its subfolders, saving them in a separate folder. It avoids recompressing previously compressed files.

Requirements

• ffmpeg and ffprobe should be installed on your system. Ensure they are accessible from the command line.

Usage

1. Place the videocomp.py script in the root folder containing the videos you want to compress.

2. Open a terminal or command prompt and navigate to the root folder.

3. Run the following command:

python vid_compress.py

The script will recursively compress all .mp4 files in the root folder and its subfolders, saving the compressed files in a "compressed" folder within each folder containing the original videos.

4. Once the script completes, the compressed videos will be available in their respective "compressed" folders.

Functionality

The script provides the following functions:

get_video_info(video_path: str) -> dict

Returns a dictionary containing video information using ffprobe.

get_bitrate(video_path: str) -> int

Returns the current bitrate of a video file.

is_video_compressed(video_path: str) -> bool

Checks if a video file has already been compressed.

compress_video(video_path: str, output_dir: str) -> str

Compresses a video file and returns the path of the compressed file.

compress_videos(root_folder: str)

Recursively compresses all .mp4 files in a root folder and saves them to a "compressed" folder within each folder containing the original videos.

Note: The script applies different compression settings based on the bitrate of the video file.

Contact

For any questions or feedback, please contact Dan at [e-mail].