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• concat 2 mini audio files and make a loop and add a background music

  11 octobre 2020, par Johny Sharma

  I Need to concatenate 2 small audio files with loop and add background music in a single command.

  



  I am capable to concatenate two audio files with a background music. My above given code is working.

  



  ffmpeg -i 1.mp3 -i 2.mp3 -i background.mp3 
-filter_complex "[0:0][1:0]concat=n=2:v=0:a=1,volume=1dB,aformat=fltp, pan=stereo|c0=c0|c1=c0[a0]; 
[2]volume=0.5dB,aformat=fltp,pan=stereo|c0=c0|c1=c1[a1];[a0][a1]amix=inputs=2:duration=longest,aformat=fltp[a]"
-map "[a]" -strict -2 -y output.mp3


  



  but i want to a make a loop of the concatenated files till the end of the background music. background music is longer than approx 5 times from concatenated files.

  



  If someone can suggest a single command solution.

  



  I know about amovie tag but unfortunately its not possible to use in here because amovie requires file name which is not possible with concatenated files as per my knowledge.

  



  Can anyone help me how can i achieve my goal !

  



  Thanks

  


• Anomalie #4189 : extraire_multi mélange un /li /ul final avec le de langue ajouté par code_...

  13 février 2021, par Jacques Bouthier

  J’ai testé de rajouter ces trois lignes et ça règle le problème d’affichage.
  (test effectué en English sur un site monolingue et en recherchant des plugins à ajouter avec un mot qui génère une longue liste : "multi". Ensuite j’ai activé plusieurs langues dans l’espace privé et ai activé le plugin multilang sans constater de souci particulier.)

• How to add dynamic captions with animations on a video in a cross-platform Android & iOS app and export it as a final video ? [closed]

  29 avril, par Danial Qsk

  I'm building a cross-platform mobile app using Flutter (or React Native) where users can :

  


  Add dynamic text captions with animations over a video, similar to TikTok

  


  See these changes in real-time during video playback

  


  Export the video with the animated captions burned into the output (e.g., MP4)

  


  What I’ve implemented so far :

  


  Video playback using video_player in Flutter (or react-native-video).

  


  Captions are rendered using Canvas/UI layer during playback.

  


  Problem : While I can overlay animated text in the UI, I can't figure out how to include these in the exported video. I’m considering using FFmpeg to burn in the captions, but I’m unclear how to integrate it with the animated UI overlays or render them into a final video on both Android and iOS.

  


  What I want to achieve :

  


  Efficient way to render animated text overlays onto a video and export it as a final video file on both Android and iOS.

  


  Maintain good performance for real-time playback and smooth export.

  


  What approaches or processing pipelines could achieve this ?
(For example, rendering the UI layer to an offscreen video, integrating with FFmpeg, or using native rendering techniques.)