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Sur d’autres sites (15688)

  • How to concatenate two or more videos with different width in FFMpeg and to maintain the same aspect ratio ?

    23 octobre 2019, par Aarwil

    I have five video parts to concat all. Each five videos are in the same width and height. The second part is the hstack of another 2 videos and the third part is the hstack and vstack of another 3 videos. While concat all the five video parts the aspect ratio is not maintaining in the final video. Since I am new to ffmpeg help me to sort out the problem

    I have tried with the command with filter complex and to reduce the size I used frame per second.

    "ffmpeg -i
    RM356ce8c15f47cb07b7af885fd718a39f/final/RM356ce8c15f47cb07b7af885fd718a39f.mp4 -vf scale=1280:480 -filter:v fps=fps=30 E :\test\routes\public\assets\downloads\RM356ce8c15f47cb07b7af885fd718a39f/final/RM356ce8c15f47cb07b7af885fd718a39f.mp4"

    Only ’-vf fps=fps=30’ read, ignoring remaining -vf options : Use ’,’ to separate filters

  • AWS Chime : Video Merging Java Library

    18 mai 2023, par Swapnil Srivastav

    I am using AWS Chime to record interaction of two or more than two participants, I want to process this and build a final video.

    


    While making final video I want to mask one participant's video with some generic image and everything I want to do using Java.

    


    Is there any library available which can help me to do this ? I'm using Python as of today, ffmpeg library.

    


  • convert video to audio - ffmpeg

    2 mai 2024, par shakti goyal

    I'm trying to convert video to audio using ffmpeg in flutter based application but command is not working.

    


    Is there something wrong with the command ?

    


      void convert(File pickedVideo) async {
    Directory applicationDocDirectory = await getApplicationDocumentsDirectory();

    final outputPath = '${applicationDocDirectory.path}/output-audio-${const Uuid().v1()}.mp3';

    final session = await FFmpegKit.execute('-i ${pickedVideo.path} -vn -acodec mp3 $outputPath');

    final returnCode = await session.getReturnCode();

    print(ReturnCode.isSuccess(returnCode)); // return false
  }


    


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