Sur d’autres sites (13095)

• FFMPEG-PHP converted videos don't work on mobiles

  16 avril 2018, par casusbelli

  I’m working on a upload script where users can upload videos however I’m having an issue with FFMPEG-PHP : The converted videos don’t work on mobiles while they are working fine on desktop.

  //FFMPEG Instance
  
  require_once '/root/vendor/autoload.php';
  
  $ffmpeg = FFMpeg\FFMpeg::create();
  
  $video = $ffmpeg->open($temp_path);
  
  
  
  //WEBM Convert
  
  $format_webm = new FFMpeg\Format\Video\WebM();
  
  $video->save($format_webm, 'video.webm');
  
  
  
  //MP4 Convert
  
  $format_mp4 = new FFMpeg\Format\Video\X264();
  
  $format_mp4->setAudioCodec("libmp3lame");
  
  $video->save($format_mp4, 'video.mp4');

  Fatal error : Uncaught
  Alchemy\BinaryDriver\Exception\ExecutionFailureException : ffmpeg
  failed to execute command ’/usr/bin/ffmpeg’ ’-y’ ’-i’
  ’/var/www/html/v/temp/13759.mp4’ ’-vcodec’ ’libx264’ ’-acodec’ ’aac’
  ’-b:v’ ’1000k’ ’-refs’ ’6’ ’-coder’ ’1’ ’-sc_threshold’ ’40’ ’-flags’
  ’+loop’ ’-me_range’ ’16’ ’-subq’ ’7’ ’-i_qfactor’ ’0.71’ ’-qcomp’
  ’0.6’ ’-qdiff’ ’4’ ’-trellis’ ’1’ ’-b:a’ ’128k’ ’-pass’ ’1’
  ’-passlogfile’
  ’/tmp/ffmpeg-passes5ad4e29d1b71e6oveh/pass-5ad4e29d1b7b2’
  ’/var/www/html/v/13759.mp4’ in
  /root/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php:100\nStack
  trace :\n#0
  /root/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php(72) :
  Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure(’’/usr/bin/ffmpe...’)\n#1
  /root/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/AbstractBinary.php(209) :
  Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process),
  Object(SplObjectStorage), false) in
  /root/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/Video.php on line
  109

  Any help ?

• PHP/ffmpeg (Windows 7) : - Permission Denied. Tried everything, but still doesn't work

  14 janvier, par user365465

  I have a command-line PHP script that, when given the folder name as an argument when executing the script, will find all images in said folder and resize them using FFmpeg. Problem is, I always get a Permission Denied error in FFmpeg when it attempts to get at the files within the folder. This is while being on Windows 7.

  



  The big problem is that I've tried every solution that keeps popping up on the interwebs when I search for how to fix it. I've changed the settings in Avast !, did the attrib command (both as normal and "Run as Administrator") to unmark as read-only, took ownership of the folder both via command line and using that GUI takeown context menu thing everyone keeps throwing around (obviously before my efforts to mark everything as not-read-only), messed with permissions, everything. I keep searching and searching for a solution, but all of the sites keep throwing out the same things over and over again - things that I've already tried multiple times. I'm at the end of my rope here. All I want to do is resize images quickly and automatically so I can put them up on my website, yet this has been a massive headache...

  



  Please help me ! :(

  



  Update (Additional Points) :

  



  


  • The error is through FFmpeg, not PHP. FFmpeg spits out the permission denied error, the script just continues doing what it does normally (or, at least, it would if it weren't for my die statement that kicks in in the event of FFmpeg failing).

  


  • FFmpeg will execute just fine if it's run normally through the command line instead of through the script. However, this does not help the problem of me having to resize hundreds of photos by hand !

  


  • I'm just running this script in the normal terminal using the CLI engine. Weird use for PHP, I know, but since I already knew how to work with FFmpeg in PHP (but in Linux !) so I figured I might as well use the code as a normal, stand-alone program...

  


  • FFmpeg spits out the same error regardless of which PHP function is used to execute it. It happens for shell_exec, exec, passthru, and system.

  


  


• Getting ffmpeg to capture the full screen of xfvb-run screen running puppeteer script, and send it over rtmp

  30 janvier, par james

  My problem

  


  I can't get ffmpeg or xvfb-run to stream the full screen to ffplay/videolan, it only captures a part of the screen.

  


  Update 2

  


  I answered the question myself in a follow up answer, hopefully it can be useful for someone else with the same problem.

  


  Update 1

  


  So the problem is definitely with xvfb-run, since the two following commands, still give a webm file, that only show parts of the screen

  


  ffmpeg -f x11grab -i :99 -g 50 -b:v 4000k -maxrate 4000k -bufsize 8000k -f webm -s 384x216 "blank.webm"

  


  xvfb-run -n 99 -a --server-args="-screen 0 1024x8000x24 -ac -nolisten tcp -dpi 96 +extension RANDR" "node index.js"

  


  What I've tried

  


  

  • I've tried changing ffmpeg command and xvfb-run, for example adding "-vf format=yuv420p" or "-filter:v "crop=iw-400:ih-40,scale=960:720" to ffmpeg command

  


  • I've tried to show other applications under xvfb-run instead of puppeteer (chrome..)

  


  • Recording screen with ffmpeg and saving it to a file, to see if there's a problem with the rtmp stream

  


  


  But still no luck. That's why I'm reaching out to the stackoverflow community.

  


  xvfb-run command

  


  xvfb-run -n 99 -a --server-args="-screen 0 1024x8000x24 -ac -nolisten tcp -dpi 96 +extension RANDR" "node index.js"

  


  ffmpeg command to capture xvfb-run virtual screen

  


  ffmpeg -f x11grab -i :99 -f pulse -i default -c:v libx264 -c:a aac  -g 50 -b:v 4000k -maxrate 4000k -bufsize 8000k -f flv -listen 1 rtmp://localhost:4444/stream

  


  And finally to show the rtmp stream

  


  ffplay -fflags -nobuffer -flags low_delay -probesize 32 -flags low_delay -analyzeduration 0 -i rtmp://localhost:4444/stream

  


  The puppeteer script (index.js) which xfvb-runs

  


  

import puppeteer from 'puppeteer';
let initPuppeteer = async () => {
  const launchArgs = [
    //'--window-size=1280,1024',
    '--disable-web-security',
    '--disable-features=IsolateOrigins',
    '--disable-site-isolation-trials',
    '--app',
    '--kiosk',
  ]
  await puppeteer.launch({headless: false, ignoreDefaultArgs: ["--enable-automation"], args: launchArgs});
  const page = await this.browser.newPage();
  const device = puppeteer.devices['Nexus 10'];
  await page.emulate(device);
  await page.goto("https://google.com");
}
initPuppeteer()