Merge Video and Audio

Sometimes the video and audio you need live in two separate files — for example, replacing a clip's original audio with a different track, or combining a silent screen recording with narration. ffmpeg-studio lets you pull a stream from each file and combine them into one output without hand-writing the FFmpeg mapping flags.

Example

example/merge_streams.py

"""
Example Quick Start to merge video and audio from two files
"""

from ffmpeg.inputs import VideoFile
from ffmpeg import export

# Grab video from File
video_stream = VideoFile("video1.mp4").video

# Grab audio from another File
audio_stream = VideoFile("video2.mp4").audio

# Combine them together and export as mp4 
export(
    video_stream,
    audio_stream,
    path="out.mp4",
).run()

This grabs the video stream from video1.mp4 and the audio stream from video2.mp4, then exports both into a single out.mp4.