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• Presentation of Piwik’s collaborative translations platform : oTrance [Interview]

  19 avril 2013, par matt — Community, translation

  Piwik enables domain administrators, hobbyists, power users, personal website builders and everyone in between to access enormous amounts of data for website analytics. To support all those users, Piwik needs to be available in a number of different languages. From the start, we made internationalization (i18n) part of Piwik’s DNA. There are now dozens active volunteers who help make sure each language is well represented in the latest official release of Piwik. As of now, Piwik is available in 48 languages.

  Recently a new tool became available that makes the translation of Piwik much easier. The software we are using is an open source platform called oTrance. It has made our translation architecture more robust, and it allows us to expedite the timely delivery of high quality and up-to-date translations to the thousands of people who rely on Piwik every day.

  We’ve met with oTrance creator and lead developer Daniel Schlichtholz who answered a few questions for us.

  1. What is oTrance ?
  2. What sets oTrance apart from the other ways to manage translations ?
  3. Now that oTranCe 1.0 is out, what will you be working on next ?

  What is oTrance ?

  oTranCe is the short form of “Online Translation Center”. It was born because I needed a translation platform for my project MySQLDumper.

  Many languages have been added by the community and manual maintenance became more and more time consuming. I wanted to change that. So I searched for an existing platform I could use and tested a lot of approaches. To put a long story short : none of the given solutions satisfied my needs.

  From the view of a translator maintaining a language should be as easy as possible. In most cases they have to install a program on their local machine or the workflow was too difficult. A translator doesn’t want to struggle with technical things ; he just wants to translate the phrases and wants to know the progress.

  That’s the main goal we want to reach : to make the translation process as easy as possible.

  What sets oTrance apart from the other ways to manage translations ?

  Ease of use is one advantage of oTranCe compared to other solutions. Another advantage is that project administrators can install oTranCe on their own server – so nobody is dependant of a third party provider.

  We love to get feedback from other users. User feedback influences the way oTranCe is developed. We believe that this way oTranCe satisfies the requirements of the real world.

  We also have extensive user documentation, in our “Working with oTranCe” wiki. We try to document use cases in an understandable way. We don’t write down marketing buzz words, but try to explain the use from the view of the user/administrator.

  Now that oTranCe 1.0 is out, what will you be working on next ?

  The language files can be exported to version control and oTranCe can commit changes to the target repository. Currently we support export to Subversion, and we are working on a Git export adapter, which will be released soon.

  Another issue we are trying to solve is the context problem. When your project uses many different phrases the translator often doesn’t know in which context the current phrase is used. Version 1.1.0 (not released yet, but you can grab the latest developer version from GitHub) introduces the oTranCe-connector. The idea behind it : a small plug in grabs the used phrases/keys on the current page, and on click this list is submitted to oTranCe, where the translator can edit the words. This way the translator knows in which context these phrases are used. I wrote a small plug in for OXID eShop. Since it is really easy to implement, my hope is that other plug ins for other applications will be added by the community.

  Matthieu : Congratulations Daniel for having created such an awesome Translation Platform. At Piwik we are really thankful for oTranCe, which has resulted in much better translation process, and happier translators. Keep up the good work !

  If you are a Piwik user, and if you want to participate in translating Piwik, please sign up for an account on oTrance and become part of the team making Piwik available in more languages across the world.

• Android FFMPEG doesn't continue, throws no error

  8 octobre 2015, par Thommy

  I try to scale a video via FFMPEG in Android, but everytime I execute the command, it just stops producing console output.
  No Exception is thrown.
  The output looks like this. It just stops afterwards, the App is still running.

  /.../ffmpeg -i /.../VIDEO1.mp4 -filter:v scale=720:-1 -c:a copy /sdcard/test.mp4
  
  WARNING: linker: .../ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
  ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  
  built on Oct  8 2015 14:29:21 with gcc 4.6 20120106 (prerelease)
  
  configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/home/thomas/Downloads/android-ndk-r10d/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --sysroot=/home/thomas/Downloads/android-ndk-r10d/platforms/android-16/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filters --enable-avresample --enable-libfreetype --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib --enable-muxer=md5
  
     libavutil      51. 54.100 / 51. 54.100
  
     libavcodec     54. 23.100 / 54. 23.100
  
     libavformat    54.  6.100 / 54.  6.100
  
     libavdevice    54.  0.100 / 54.  0.100
  
     libavfilter     2. 77.100 /  2. 77.100
  
     libswscale      2.  1.100 /  2.  1.100
  
     libswresample   0. 15.100 /  0. 15.100
  
     libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.../VIDEO1.mp4':
  
     Metadata:
  
       major_brand     : mp42
  
       minor_version   : 0
  
       compatible_brands: isommp42
  
       creation_time   : 2015-10-08 08:46:47
  
     Duration: 00:00:15.98, start: 0.000000, bitrate: 17182 kb/s
  
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16923 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc
  
       Metadata:
  
         creation_time   : 2015-10-08 08:46:47
  
         handler_name    : VideoHandle
  
       Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 252 kb/s
  
       Metadata:
  
         creation_time   : 2015-10-08 08:46:47
  
         handler_name    : SoundHandle

  Note : I ... out some paths to keep it easy to read

• FFMPEG is not working in AWS lambda function

  13 novembre 2022, par Arun

  I am trying to convert a video file into an audio file using AWS lambda function whenever a file is uploaded into an S3 bucket. So I am using FFMPEG for converting a video file into audio. But I keep getting this error while converting a video file. I have seen similar questions but none of the solutions is not working for me. So If anyone knows please share your solutions.

  



  Error message

  



      TypeError: Cannot create property 'stack' on string 
'Could not find ffmpeg executable, tried "/var/task/node_modules/@ffmpeg-installer/linux-x64/ffmpeg" and "/var/task/node_modules/@ffmpeg-installer/ffmpeg/node_modules/@ffmpeg-installer/linux-x64/ffmpeg"'


  



  Code

  



      const
    ffmpegPath = require("@ffmpeg-installer/ffmpeg").path,
    ffmpeg = require("fluent-ffmpeg");

    // set ffmpeg package path
    ffmpeg.setFfmpegPath(ffmpegPath);
    function convert(input, output, callback) {
        ffmpeg(input)
            .output(output)
            .on('end', function() {                    
                console.log('conversion ended');
                callback(null);
            }).on('error', function(err){
                console.log('error: ', err.code, err.msg);
                callback(err);
            }).run();
    }

    exports.handler = function (event, context, callback) {
        const key = decodeURIComponent(event.Records[0].s3.object.key.replace(/\+/g, ' '));
        console.log("key ", key);
        console.log("event ", event.Records[0].s3);
        convert(key, `/tmp/${key}.mp3`, function(err){
            if(!err) {
                console.log('conversion complete');
            } else {
                console.log('Error');
            }
        });
    }


    const
        ffmpegPath = require("@ffmpeg-installer/ffmpeg").path,
        ffmpeg = require("fluent-ffmpeg");

    // set ffmpeg package path
    ffmpeg.setFfmpegPath(ffmpegPath);
    function convert(input, output, callback) {
        ffmpeg(input)
            .output(output)
            .on('end', function() {                    
                console.log('conversion ended');
                callback(null);
            }).on('error', function(err){
                console.log('error: ', err.code, err.msg);
                callback(err);
            }).run();
    }

    exports.handler = function (event, context, callback) {
        const key = decodeURIComponent(event.Records[0].s3.object.key.replace(/\+/g, ' '));
        console.log("key ", key);
        console.log("event ", event.Records[0].s3);
        convert(key, `/tmp/${key}.mp3`, function(err){
            if(!err) {
                console.log('conversion complete');
            } else {
                console.log('Error');
            }
        });
    }


  



  package.json

  



      "dependencies": {
    "@ffmpeg-installer/ffmpeg": "^1.0.17",
    "fluent-ffmpeg": "^2.1.2",
    "fs": "0.0.1-security"
  }