[Libav-user] join multiple videos and audios with different timestamps

Baofu Duan BDuan at ctigroup.com
Tue May 20 17:12:44 CEST 2014

Hi all,

I am trying to join multiple videos(in mp4 format) and an audio(in mp3 format) together. The use case is for a two parties' video call. There will be one stereo mp3 file for the voice with the full duration of the call. However, each party can start and stop the video in the middle of the call. So each party can have multiple video clips. The goal is to concatenate each parties' video clips together with blank screen between the video clips and then join both parties' videos side by side along with the audio.

Has anyone done this before?  Your help will be highly appreciated.

Best regards,

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