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• Save FFMpeg conversion to PHP variable vs. File System for use with Whisper API ?

  13 avril 2023, par SScotti

  I just started working on a little demo to transalte audio captured from the front-end as audio/webm using JS and then sent the back-end in a Laravel App. I guess there are JS libraries that can handle the conversion, but I'd rather use a server side solution with FFMPEG, which I am doing.

  


  The backend code is below. It seems to be working after playing around with the PHP composer package that I'm using vs. one for Laravel that is also there. I'd rather use this one because I have other PHP apps that are not Laravel.

  


  Questions :

  


  


  1. With the FFMpeg library, is there a way to capture the converted .mp3 file to a PHP variable in the script rather than saving it to the file system and then reading it back in later ?

     


  


  2. For the OpenAI call, I'd like to catch exceptions there also. I just sort of have a placeholder there for now.

     


     protected function whisper(Request $request) {

    $yourApiKey = getenv('OPENAI_API_KEY');
    $client = OpenAI::client($yourApiKey);

    $file = $request->file('file');
    $mimeType = $request->file('file')->getMimeType();
    $audioContents = $file->getContent();

    try {

        FFMpeg::open($file)
        ->export()
        ->toDisk('public')
        ->inFormat(new \FFMpeg\Format\Audio\Mp3)
        ->save('song_converted.mp3');
    }
    catch (EncodingException $exception) {
        $command = $exception->getCommand();
        $errorLog = $exception->getErrorOutput();
    }

    $mp3 = Storage::disk('public')->path('song_converted.mp3');
    try {
    $response = $client->audio()->transcribe([
    'model' => 'whisper-1',
    'file' =>  fopen($mp3, 'r'),
    'response_format' => 'verbose_json',
    ]);
    }
    catch (EncodingException $exception) {
        $command = $exception->getCommand();
        $errorLog = $exception->getErrorOutput();
    }

 echo json_encode($response);

}


     


  


  


• Revision 593fe475bd : Removed support for the Autotools build system.

  21 juillet 2012, par Marc Noirot

  Changed Paths :
   Delete /Makefile.am

  
   Delete /autogen.sh

  
   Delete /configure.ac

  
   Delete /man/Makefile.am

  
   Delete /schemas/Makefile.am

  
   Delete /src/Makefile.am

  
   Delete /src/libyaml/Makefile.am

  
   Delete /tests/Makefile.am

  
  
  Removed support for the Autotools build system.

• Screen casting on a Linux system that uses Wayland

  27 octobre 2020, par Igor Vurdelja

  Problem :

  


  I would like to live stream my display.
System that I am working on is arm Linux and it uses Wayland/Weston.
Hardware that I am using is imx8.

  


  I have already tried to use ffmpeg with following command :

  


  ffmpeg -device /dev/dri/card0 -f kmsgrab -i - -vf 'hwmap=derive_device=vaapi,scale_vaapi=w=1920:h=1080:format=nv12' -c:v h264_vaapi -f mpgets udp://127.0.0.1:52601


  


  The issue with this is that kmsgrab and vaapi are not available. It seems like there is no option to do kmsgrab on arm. Is there any workaround ?

  


  Additional inputs :
I know that Wayland/Weston is using DRM/KMS subsystem for working with graphics. In my opinion there should be two ways to get the image from Wayland :

  


  

  • Directly accessing DRM virtual frame buffers.

  


  • Interacting with Wayland.