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• How to convert ffmpeg command to ffmpeg-python

  1er décembre 2020, par Retro Pie

  Hello and thanks for reading.

  


  I have the following command : ffmpeg -i tmp.mp4 -loop 1 -i mask.png -filter_complex "[0:v]split [a][b];[a]transpose=1,crop=720:888:0:196,scale=876:1080,setdar=876/1080 [crop];[b]transpose=1,crop=720:888:0:196,scale=1920:1080,setdar=16/9,avgblur=76 [back];[1:v]alphaextract [mask];[crop][mask]alphamerge [masked];[back][masked]overlay=522:0" "out.mp4

  


  And I would like to convert it to ffmpeg-python syntax. So far I was able to come up with the bellow, but it far from ready :

  


  overlay_file = ffmpeg.input(mask)
(
ffmpeg
.input(tmp).split()
.overlay(overlay_file.hflip())
.alphaextract(),
.alphamerge(),
.output('out.mp4')
.run()
)


  


  Any help will be appreciated.

  


• How do I compress video in Sveltekit using @ffmpeg/ffmpeg ?

  16 décembre 2022, par Mc-adams

  I am trying to compress video in Sveltekit using @ffmpeg/ffmpeg after npm install @ffmpeg/ffmpeg @ffmpeg/core. Here is my code below in the folder /src/lib/compress.Dolo.js

  


  // @ts-ignore
import fs from 'fs';
// @ts-ignore
import { createFFmpeg, fetchFile } from '@ffmpeg/ffmpeg';
const ffmpeg = createFFmpeg({ log: true });
// @ts-ignore
export async function dolo(inputfile) {
    try {
        await ffmpeg.load();
        ffmpeg.FS('writeFile', 'test.avi', await fetchFile(inputfile));
        await ffmpeg.run('ffmpeg -i', 'test.avi', 'test.mp4');
        await fs.promises.writeFile('./test.mp4', ffmpeg.FS('readFile', 'test.mp4'));
    }
    catch (e) {
        console.log(e);
    }
}


  


  After uploading a video file to my +page.server.ts as shown below

  


  import {dolo} from '$lib/compress/Dolo'
import fs from 'fs';
import ffmpeg  from '@ffmpeg/ffmpeg';

handleSubmit: async ( event: { request: { formData: () => any; }; }) => {
    const data = await event.request.formData();
    const fileu = data.get('file-input') as File;
    const abuffer = await fileu.arrayBuffer();
    const buffer = Buffer.from(new Uint8Array(abuffer));
    dolo(buffer);
}


  


  when i run the code, it gives and error in my console as shown below :

  


  [info] load ffmpeg-core
[info] loading ffmpeg-core
TypeError: fetch failed
    at fetch (C:\Users\Boteng\Botengsveltekit\node_modules\undici\index.js:105:13) {
  cause: Error: unknown scheme
      at makeNetworkError (C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\response.js:351:9)
      at schemeFetch (C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\index.js:893:14)
      at C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\index.js:602:22
      at mainFetch (C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\index.js:652:7)
      at fetching (C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\index.js:517:3)
      at fetch (C:\Users\Boteng\Botengsveltekit\node_modules\undici\lib\fetch\index.js:245:16)
      at fetch (C:\Users\Boteng\Botengsveltekit\node_modules\undici\index.js:103:20)
      at C:\Users\Boteng\Botengsveltekit\node_modules\@ffmpeg\core\dist\ffmpeg-core.js:215:32
      at C:\Users\Boteng\Botengsveltekit\node_modules\@ffmpeg\core\dist\ffmpeg-core.js:215:254
      at C:\Users\Boteng\Botengsveltekit\node_modules\@ffmpeg\core\dist\ffmpeg-core.js:215:277 {
    [cause]: undefined
  }
}


  


  Please Can anyone tell me what i am doing wrong ?

  


• PHP-FFMPEG Error FFMpeg\Exception\RuntimeException

  27 avril 2016, par JJ The Second

  I have installed FFMPEG on a Ubuntu 14.04 server which works fine. I have also installed all dependencies/libraries successfully and don’t have any problem transcoding using linux command lines. My user/group can now process SUDO command so there isn’t any issue there. So I started experimenting with a PHP library called PHP-FFMPEG (Please click here to view this library on github) and have installed is using composer in my vendor folder. Please note, I’m using CodeIgniter 3 as PHP library and my composer has installed all dependencies in vendor folder.

  In my welcome controller that comes with CodeIgniter, this is how I’m calling FFMPEG

   public function __construct()
  
  {
  
      parent::__construct();
  
      // include_once('/var/www/vhosts/domain.com/streaming.domain.com/application/libraries/FFMpeg/FFMpeg.php');
  
      include('/var/www/vhosts/domain.com/streaming.domain.com/vendor/autoload.php');
  
  
  
  }

  and this is my controller

  public function preset_one()
  
  
  
      {
  
  
  
  
  
      $ffmpeg = FFMpeg\FFMpeg::create([
  
              'ffmpeg.binaries'  => '/bin/ffmpeg', // the path to the FFMpeg binary
  
              'ffprobe.binaries' => '/bin/ffprobe', // the path to the FFProbe binary
  
              'timeout'          => 0,
  
          ]);        
  
  
  
  
  
      $video = $ffmpeg->open('./media/video.mp4');
  
      $format = new FFMpeg\Format\Video\X264();
  
      $format->on('progress', function ($video, $format, $percentage) {
  
          echo "$percentage % transcoded";
  
      });
  
  
  
      $format
  
          -> setKiloBitrate(1000)
  
          -> setAudioChannels(2)
  
          -> setAudioKiloBitrate(256);
  
  
  
      $video
  
      ->save($format, './media/video.avi');
  
  
  
      }

  My media folder has 0777 permission for files and subdirectories but when I run this controller this is what I get

  An uncaught Exception was encountered
  
  
  
  Type: FFMpeg\Exception\RuntimeException
  
  
  
  Message: Encoding failed
  
  
  
  Filename: /var/www/vhosts/domain.com/streaming.domain.com/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/Video.php
  
  
  
  Line Number: 168
  
  
  
  Backtrace:
  
  
  
  File: /var/www/vhosts/domain.com/streaming.domain.com/application/controllers/Welcome.php
  
  Line: 124
  
  Function: save
  
  
  
  File: /var/www/vhosts/domain.com/streaming.domain.com/index.php
  
  Line: 315
  
  Function: require_once

  I’ve done everything to make it work, tried different file formats, small files and even 2GB files. I’ve also set timeout to 0 but still getting this error. What else I did was I looked at Line 168 in /var/www/vhosts/domain.com/streaming.domain.com/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/Video.php and it seems FFMPEG creates temp folders during transcoding process and there are some threads that I don’t understand.

  Has anyone experienced same issue ? Would you please educate me understanding what’s happening and why this is not functioning as it should ? Thank you all