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• How to convert mo4 to mp3 in android java ?

  3 août 2023, par Akshit

  I have the mp4 link of a video but don't have a link for the mp3 version of that mp4 video. So is there any way that I can convert that mp4 video to mp3 in Android ? I saw some resources but nothing works for me. I have two ways in which I believe this can be achieved

  


  

  1. Convert the mp4 link to mp3 directly. ( Not Sure if this is achievable )

  


  2. Download the mp4 on the device with the help of a link and then use some code to convert that mp4 to mp3.

  


  


  I also tried some solutions which are available online

  


  https://github.com/tanersener/mobile-ffmpeg

  


  I tried the above library to achieve the final goal. But got Async command execution failed with returnCode=1. This error in the code I am using is

  


      private class Mp4ToMp3ConverterTask extends AsyncTask {

    @Override
    protected String doInBackground(String... params) {
        String mp4FilePath = params[0];
        String mp3OutputPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/output.mp3";

        String[] ffmpegCommand = {"-i", mp4FilePath, "-vn", "-ar", "44100", "-ac", "2", "-b:a", "192k", mp3OutputPath};


        Config.enableStatisticsCallback(new StatisticsCallback() {
            public void apply(Statistics newStatistics) {
                Log.d("Dekh", String.format("frame: %d, time: %d", newStatistics.getVideoFrameNumber(), newStatistics.getTime()));
            }
        });

        long executionIdd = FFmpeg.executeAsync(ffmpegCommand, new ExecuteCallback() {

            @Override
            public void apply(final long executionId, final int returnCode) {
                if (returnCode == RETURN_CODE_SUCCESS) {
                    Log.i("Dekh", "Async command execution completed successfully.");
                } else if (returnCode == RETURN_CODE_CANCEL) {
                    Log.i("Dekh", "Async command execution cancelled by user.");
                } else {
                    Log.i("Dekh", String.format("Async command execution failed with returnCode=%d.", returnCode));
                }
            }
        });

        FFmpeg.cancel(executionIdd);

        return mp3OutputPath;
    }
}


  


  Solution number 2 which I used is

  


  https://androidprogrammatically425516919.wordpress.com/2020/04/21/how-to-convert-video-to-audio-in-android-programmatically/

  


  But I got an error here also Failed to instantiate extractor. and another error is java.io.FileNotFoundException : open failed : EISDIR (Is a directory)
I tried the online available solution to solve these errors but nothing worked. Such as granting write permission. Providing a valid location to save the output.

  


  But nothing work so far. Please help me on this. Thank you

  


• FFMPEG Concat different video types along with Images and Gifs [duplicate]

  7 août 2020, par Philban

  So I thinking this question has been done to death but none of the solutions seem to work for me exactly.

  


  So TL ;DR here's what I'm looking to do.

  


  I have 3 video files all .mp4 at different scales and I would like to concat them all into a single .mp4. Now want to use the concat protocol and I know they need to be all the same scale.

  


  On top of that, I have 3 images (2 Gif's and 1 JPG) I'd like to have a final output video which looks like the following :

  


  

  • Image 1

  


  • Video 1

  


  • Gif 1

  


  • Video 2

  


  • Gif 2

  


  


  Could someone help me here and show me a command that I can run that works. Oh and lastly is it possible to keep the audio working from Video 1 and Video 2 ?

  


  Many thanks !!!

  


• How to concatenate videos and adding background audio by using FFMPEG library

  9 mars 2017, par Furqan

  I am very new to FFMPEG library and i want some directions to implement a program that receives an list of videos (mp4 format) and audio file (mp3 ) and concatenate them with timestamps and remove its audio and add given audio and output a final video.

  Thanks