Dash_480.mp4 [ 2026 Release ]
: ffmpeg -i DASH_480.mp4 -i audio.mp4 -c copy -map 0:v:0 -map 1:a:0 output.mp4
If you already have a silent DASH_480.mp4 file and a separate audio file, you can merge them without re-encoding using FFmpeg . DASH_480.mp4
Because this topic sits at the intersection of video streaming technology and social media downloading, this guide covers what it is, why it exists, and how to manage these files. 1. Understanding DASH Streaming : ffmpeg -i DASH_480