Adding a border to ffmpeg video ffmpeg python

When working with ffmpeg in Python, you may come across the need to add a border to a video. This can be useful for various purposes, such as adding a frame or creating a visual effect. In this article, we will explore three different ways to achieve this using Python.

Option 1: Using the subprocess module

The subprocess module in Python allows us to spawn new processes, connect to their input/output/error pipes, and obtain their return codes. We can utilize this module to execute ffmpeg commands from within our Python script.

import subprocess

def add_border(input_file, output_file, border_width):
    command = f"ffmpeg -i {input_file} -vf 'pad=iw+2*{border_width}:ih+2*{border_width}:{border_width}:{border_width}' {output_file}"
    subprocess.call(command, shell=True)

# Example usage
add_border("input.mp4", "output.mp4", 10)

In this code snippet, we define a function add_border that takes the input file path, output file path, and border width as parameters. The function constructs an ffmpeg command using the input parameters and executes it using the subprocess.call method.

Option 2: Using the moviepy library

The moviepy library is a Python module for video editing, which provides a high-level interface for manipulating videos. It can be easily installed using pip.

from moviepy.editor import VideoFileClip

def add_border(input_file, output_file, border_width):
    clip = VideoFileClip(input_file)
    clip = clip.margin(border_width, border_width, border_width, border_width)
    clip.write_videofile(output_file)

# Example usage
add_border("input.mp4", "output.mp4", 10)

In this code snippet, we import the VideoFileClip class from the moviepy library. We define a function add_border that takes the input file path, output file path, and border width as parameters. The function loads the video clip using VideoFileClip, adds a margin to the clip using the margin method, and saves the modified clip to the output file using write_videofile.

Option 3: Using the pydub library

The pydub library is another Python module for audio processing, which can also be used for video editing. It provides a simple and intuitive interface for manipulating audio and video files.

from pydub import AudioSegment
from pydub.utils import make_chunks

def add_border(input_file, output_file, border_width):
    audio = AudioSegment.from_file(input_file)
    silence = AudioSegment.silent(duration=border_width * 1000)
    audio_with_border = silence + audio + silence
    audio_with_border.export(output_file, format="mp4")

# Example usage
add_border("input.mp4", "output.mp4", 10)

In this code snippet, we import the AudioSegment class from the pydub library. We define a function add_border that takes the input file path, output file path, and border width as parameters. The function loads the audio from the video file using AudioSegment.from_file, creates a silent segment of the specified duration using AudioSegment.silent, concatenates the silent segment, audio, and another silent segment, and exports the modified audio to the output file using export.

After exploring these three options, it is evident that using the moviepy library provides a more straightforward and intuitive approach to adding a border to a video in Python. It offers a high-level interface specifically designed for video editing tasks, making the code more readable and maintainable. Therefore, option 2 using the moviepy library is the recommended solution for adding a border to ffmpeg videos in Python.

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3 Responses

  1. Option 4: Lets go wild and add a border to ffmpeg video using a potato peeler! 🥔🎥 #UnconventionalTechSolutions

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