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• avformat/mspdec : Microsoft Paint (MSP) demuxer

  8 octobre 2020, par Peter Ross

  avformat/mspdec : Microsoft Paint (MSP) demuxer
  Signed-off-by : Peter Ross <pross@xvid.org>
  

  • [DH] Changelog
  • [DH] doc/general_contents.texi
  • [DH] libavformat/Makefile
  • [DH] libavformat/allformats.c
  • [DH] libavformat/mspdec.c
  • [DH] libavformat/version.h

• Anomalie #3811 (Nouveau) : Sur le Wiki de Contrib = versionning apparent incorrect !

  24 juillet 2016, par YannX DYX

  Bonsoir,
  au passage /je rajoutais une suggestion sur le Carnet/ j’ai aperçu un soulignement pas exact lors de l’examen de versionning d’article :
  https://contrib.spip.net/ecrire/?exec=article&id_article=4088

  Voici le texte exact qui avait été rajouté :
  

  viser l’intégration de http://www.templatemo.com/tm-455-vi... (avec une sous-couche de mapping &lt ;code&gt ;.less&lt ;/code&gt ; pour faire correspondre les styles spipr/Z-core aux styles de Visual Admin)..
  

  L’image d’extrait prend en fait deux modifications : voir piece jointe...
  pour le lien [1]

  Serait-ce dû à la présence de la balise cachée .less!! dans le texte inséré ??

• SIGSEGV from ffmpeg on Amazon Lambda

  1er août 2024, par Serge

  Trying out Amazon Lambda / nodejs 8. My goal is to launch ffmpeg, generate a short clip and upload it to S3 bucket.

  



  I created the function following the image resize tutorial. Edited the code to get output from simple linux commands like ls or cat /proc/cpuinfo - all works.

  



  Now, added the ffmpeg binary for i686 - ffmpeg static build by JohnVan Sickle (thanks !). Changed the code to launch simple ffmpeg command that is supposed to create sa 2-seconds small video clip.

  



  That fails, according to logs, with the signal SIGSEGV returned to the "close" event handler of child_process.spawn()

  



  As far as I understand, this could be caused by the ffmpeg binary incompatibility with the static build. Or by some mistake in my code.

  



  Several npm modules rely on the static builds from johnvansickle.com/ffmpeg and there are no such issues filed on their github. Maybe there's some other mistake I made ?

  



  Should I compile ffmpeg myself under Amazon Linux AMI amzn-ami-hvm-2017.03.1.20170812-x86_64-gp2 which is under the hood of AWS Lambda ?

  



  ---

  



  upd. Launched EC2 t2.micro instance from the same AMI, downloaded the same ffmpeg static build, and it works just fine from the command line. Now I doubt that it is a compilation issue.

  



  Also tried copying ffmpeg executable to /tmp/ffmpeg and chmod 755 just to make sure.
Running simple ffmpeg --help command via child_process.execSync() returns "Error : Command failed : /tmp/ffmpeg —help"

  



  ---

  



  const join = require('path').join;
const tmpdir = require('os').tmpdir;
const process = require('process');
const fs = require('fs');
const spawn = require('child_process').spawn;
const exec = require('child_process').exec;

const async = require('async');
const AWS = require('aws-sdk');
const util = require('util');

process.env['PATH'] = process.env['PATH'] + ':' + process.env['LAMBDA_TASK_ROOT'];


const tempDir = process.env['TEMP'] || tmpdir();
const filename = join(tempDir, 'test.mp4');
const s3 = new AWS.S3();


exports.handler = function(event, context, callback) {
  var dstBucket = srcBucket + "resized";
  var dstKey  = "render-test.mp4";

  async.waterfall([
    function transform(next) {
      var args = [
        '-filter_complex',
        '"testsrc=r=25:s=640x480:d=3"',
        '-an',
        '-y',
        '-hide_banner',
        '-c:v', 'libx264',
        filename,
      ];

      console.log("Will launch ffmpeg");
      const childProcess = spawn('ffmpeg', args);

      childProcess.on('close', function(e) {
        console.log('ffmpeg close event: ' + JSON.stringify(arguments));
        next();
      });

      console.log("After launched ffmpeg");
    },

    function upload(next) {
      ...
    }
  ], function (err) {
    ...
  });
};