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• Pipe PhantomJS output to FFmpeg

  10 avril 2017, par Hasse Andersen

  I am running PhantomJS using Selenium WebDriver (C#).

  I’m trying to video record my browser using FFmpeg as shown in the 2 tutorials :

  https://mindthecode.com/recording-a-website-with-phantomjs-and-ffmpeg/

  https://gist.github.com/phanan/e03f75082e6eb114a35c

  As explained in the tutorials, I’ll need to pipe output the phantomJS process to ffmpeg.

  I know how to add arguments to phantomjs, like the following :

      var svz = PhantomJSDriverService.CreateDefaultService();
  
      svz.AddArgument("ffmpeg -y -c:v png -f image2pipe -r 24 -t 10  -i - -c:v libx264 -pix_fmt yuv420p -movflags +faststart output.mp4");
  
      var driver = new PhantomJSDriver(svz);

  However, I don’t know how to add the argument as pipe. I have tried adding the pipe symbol before the actual argument but that doesn’t seem to work.

  So, my question is, how do I pipe the output of PhantomJS using selenium webdriver ?

• Unable to add watermark to uploaded video using protonemedia / laravel-ffmpeg

  24 avril 2021, par Kashif Anwar

  thank you for the amazing package, i am using it first time and i am stuck in it, maybe i am doing something wrong. I am trying to add a watermark on a video so users couldn't download the original video. below is my code to upload a video first and then add watermark to that video :

  


  public function watermarkpost(Request $request)
{

    if ($file = $request->file('watermark')) 
    {      
       $name = time().str_replace(' ', '', $file->getClientOriginalName());
       $file->move('assets/images/products',$name);           
    }
        FFMpeg::open(asset('assets/images/products/'.$name))->addWatermark(function(WatermarkFactory $watermark) {
            $watermark
            ->open(asset('assets/images/1571567292logo.png') )
            ->right(25)
            ->bottom(25);
        });
   
    // return asset('assets/images/products/'.$name);
}


  


  but i am getting below error :

  


  Alchemy\\BinaryDriver\\Exception\\ExecutableNotFoundException(code: 0): Executable not found, proposed : ffmpeg at F:\\xampp\\htdocs\\GeniusCart\\project\\vendor\\alchemy\\binary-driver\\src\\Alchemy\\BinaryDriver\\AbstractBinary.php:159)


  


  Any help would be really appreciated

  


• Errors when use mps in NVDEC ?

  4 avril 2019, par johnsondeng

  I use ffmpeg compiled with cuda, support nvdec to decode h264 in gpu devices. MPS(https://docs.nvidia.com/deploy/mps/index.html) can share context with different processes, and this can use less gpu storage when use multi-process to decode h264 stream. But when I use ffmpeg in this mode, error got like this.

  Input #0, mpeg, from '/data/yt_traffic/media/nianjianbiao.mp4':
  
  Duration: 00:16:57.97, start: 7833.134000, bitrate: 4219 kb/s
  
  Stream #0:0[0x1e0]: Video: h264 (High), yuv420p(progressive), 1920x1080, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
  File '1.yuv' already exists. Overwrite ? [y/N] y
  
  [AVHWDeviceContext @ 0x4444840] Could not initialize the CUDA driver API
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (h264 (h264_cuvid) -> rawvideo (native))
  
  Error while opening decoder for input stream #0:0 : Unknown error occurred

  But when mps is shutdown, ffmpeg works fine. Anyone can help ?