ffzap

ffzap --file-list files.txt -f "-c:v libx265 -preset medium -crf 23 -c:a libopus -b:a 128k" -o "Output/{{name}}.mp4" -t 2

Keypoints:

• use --file-list to pass a list of file names to process
• re-encode the video to H265 using -c:v libx265
  • -preset medium to balance out speed and file size
  • -crf 23 to achieve good quality with reasonable file size
• re-encode the audio to opus using -c:a libopus
  • -b:a 128k sets the audio bitrate to 128k for a good trade-off between file size and audio quality
• -t 2 runs two ffmpeg processes simultaneously to re-encode two files at once
  • adjust this number according to your system specs. Most system should be able to handle two instances comfortably

ffzap --file-list files.txt -f "-c:v mjpeg -q:v 2" -o "Output/{{name}}.jpg" -t 6

Keypoints:

• use --file-list to pass a list of file names to process
• convert the image to JPG using -c:v mjpeg
  • -q:v 2 to set very high quality
• -t 6 runs six processes in parallel, converting six files at once
  • adjust this number according to your system specs. Six shouldn't be too taxing on a modern CPU

ffzap --file-list files.txt -f "-i watermark.png -filter_complex [1]format=rgba,lut=a=val*0.3[watermark];[0][watermark]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2 -c:a copy" -o "{{name}}_watermark.mp4" -t 2

(Note that this command may not work in Windows Powershell as it requires a different escaping format)

Keypoints:

• use --file-list to pass a list of file names to process (these are the files the watermark gets added to)
• select to watermark file with -i watermark.png inside -f
• -filter_complex applies the watermark with 70% opacity to the center of each video
• -c:a copy copies the audio
• -t 2 processes two files in parallel
  • adjust this number according to your system specs. Two should be good on most modern systems

ffzap --file-list files.txt -f "-vf scale=1280:720 -c:a copy" -o "{{name}}_resized.mp4" -t 2

Keypoints:

• use --file-list to pass a list of file names to process
• -vf scale=1280:720 sets the video resolution to HD
• -c:a copy copies the audio
• -t 2 processes two files in parallel
  • adjust this number according to your system specs. Two should be good on most modern systems

ffzap --file-list files.txt -o "{{name}}.mkv" -t 2

(It is assumed the source files have a container that's interchangable with MKV)

Keypoints:

• use --file-list to pass a list of file names to process
• -o "{{name}}.<desired file extension> to swap all files to the desired container format (in this case MKV)
• No -f because it's not needed
• -t 2 processes two files in parallel
  • adjust this number according to your system specs. Two should be good on most modern systems

$ ffzap --help
⚡ A multithreaded CLI for digital media processing using ffmpeg. If ffmpeg can do it, ffzap can do it - as many files in parallel as your system can handle.

Usage: ffzap [OPTIONS] --output <OUTPUT>

Options:
-t, --thread-count <THREAD_COUNT>
        The amount of threads you want to utilize. most systems can handle 2. Go higher if you have a powerful computer. Default is 2. Can't be lower than 1
        
        [default: 2]

-f, --ffmpeg-options <FFMPEG_OPTIONS>
        Options you want to pass to ffmpeg. For the output file name, use --output

-i, --input <INPUT>...
        The files you want to process

    --file-list <FILE_LIST>
        Path to a file containing paths to process. One path per line

    --overwrite
        If ffmpeg should overwrite files if they already exist. Default is false

    --verbose
        If verbose logs should be shown while ffzap is running

    --delete
        Delete the source file after it was successfully processed. If the process fails, the file is kept

-o, --output <OUTPUT>
        Specify the output file pattern. Use placeholders to customize file paths:
        
        {{dir}}  - Entire specified file path, e.g. ./path/to/file.txt -> ?./path/to/
        
        {{name}} - Original file's name (without extension)
        
        {{ext}}  - Original file's extension
        
        Example: /destination/{{dir}}/{{name}}_transcoded.{{ext}}
        
        Outputs the file in /destination, mirroring the original structure and keeping both the file extension and name, while adding _transcoded to the name.

-h, --help
        Print help (see a summary with '-h')

-V, --version
        Print version