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• How do I end a pipe ?

  5 septembre 2019, par Leo

  I have trouble using ffprobe from node.js. I need the audio lengths MP3 files. There is an npm package, get-audio-duration for this.

  The package calls ffprobe through an execa command. It works well for .flac files both when when using a filename and a stream. However for .mp3 files it fails for streams.

  I suspected some problems with execa so I checked from the command line (on Windows 10) :

  type file.mp3 | ffprobe -

  (Where I left out the parameters to ffprobe for clarity.)

  This kind of works, but says duration=N/A.

  It looks to me like ffprobe didn’t get the info that the input is finished. Or, it dint care about it. (There is a 4 year old bug report about this on the ffmpeg issue site which was closed for no obvious reason.)

  Is it possible to somehow tell ffprobe that the pipe has ended ?

• Unable to instal ffmpeg on CircleCi 2.0

  15 novembre 2017, par Mateusz Urbański

  I have Ruby on Rails project which uses CircleCi to run tests. In the past I was using CircleCi 1.0 but now I migrated to CircleCi 2.0. I have problem with installing ffmpeg. CircleCi 2.0 uses Ubuntu 14.04. I install ffmpeg like this :

  # ffmpeg installation
  
  sudo add-apt-repository ppa:mc3man/trusty-media -y
  
  sudo apt-get update
  
  sudo apt-get install ffmpeg

  and my circle.yml config file looks like this :

  version: 2
  
  environment:
  
    TZ: "/usr/share/zoneinfo/America/Los_Angeles"
  
  
  
  jobs:
  
    build:
  
      parallelism: 2
  
      working_directory: ~/circleci-survey-builder
  
      docker:
  
        - image: circleci/ruby:2.4.1-node
  
          environment:
  
            PGHOST: 127.0.0.1
  
            PGUSER: ubuntu
  
            RAILS_ENV: test
  
        - image: circleci/postgres:9.6-alpine
  
          environment:
  
            POSTGRES_USER: ubuntu
  
            POSTGRES_DB: circle_test
  
            POSTGRES_PASSWORD: ''
  
      steps:
  
        - checkout
  
  
  
        - run:
  
            name: 'Install CircleCI dependencies'
  
            command: bash deploy/circle-dependencies.sh
  
  
  
        - type: cache-restore
  
          key: dashboard-{{ checksum "Gemfile.lock" }}
  
  
  
        - run:
  
            name: 'Install gems'
  
            command: bundle install --path vendor/bundle
  
  
  
        - type: cache-save
  
          key: dashboard-{{ checksum "Gemfile.lock" }}
  
          paths:
  
            - vendor/bundle
  
  
  
        - run:
  
            name: 'Install postgresql-client'
  
            command: sudo apt install postgresql-client
  
  
  
        - run:
  
            name: 'Create database.yml'
  
            command: mv config/database.ci.yml config/database.yml
  
  
  
        - run:
  
            name: Set up SurveyBuilder database
  
            command: bundle exec rake db:structure:load --trace
  
  
  
        - run:
  
            name: 'Run tests'
  
            command: |
  
              bundle exec rspec spec

  It returns following error when I run build on CircleCi :

  #!/bin/bash -eo pipefail
  
  bash deploy/circle-dependencies.sh
  
  
  
  Fetching: bundler-1.16.0.gem (100%)
  
  Successfully installed bundler-1.16.0
  
  1 gem installed
  
  sudo: add-apt-repository: command not found
  
  
  
  
  
  Ign http://deb.debian.org jessie InRelease
  
  
  
  Get:1 http://deb.debian.org jessie-updates InRelease [145 kB]
  
  
  
  10% [1 InRelease 13.8 kB/145 kB 10%] [Waiting for headers] [Connecting to securHit http://deb.debian.org jessie Release.gpg
  
  
  
  Hit http://deb.debian.org jessie Release
  
  
  
  Get:2 http://deb.debian.org jessie-updates/main amd64 Packages [23.2 kB]
  
  
  
  Get:3 http://deb.debian.org jessie/main amd64 Packages [9063 kB]
  
  
  
  Get:4 http://security.debian.org jessie/updates InRelease [63.1 kB]
  
  
  
  Get:5 http://security.debian.org jessie/updates/main amd64 Packages [610 kB]
  
  
  
  100% [3 Packages 9063 kB]100% [3 Packages 9063 kB]Fetched 9904 kB in 1s (8178 kB/s)
  
  
  
  Reading package lists... 1%
  
  Reading package lists... 61%
  
  Reading package lists... Done
  
  
  
  
  
  Reading package lists... 1%
  
  Reading package lists... Done
  
  
  
  
  
  Building dependency tree... 0%
  
  Building dependency tree       
  
  
  
  
  
  Reading state information... Done
  
  
  
  Package ffmpeg is not available, but is referred to by another package.
  
  This may mean that the package is missing, has been obsoleted, or
  
  is only available from another source
  
  
  
  E: Package 'ffmpeg' has no installation candidate
  
  Exited with code 100

  How can I fix that ?

• Unable to install anything on CentOS 6 server [on hold]

  8 janvier 2016, par Jayendra

  When I am trying to anything on the CentOS 6 dedicated server, I get following error everytime.

  Loaded plugins: fastestmirror
  
  Setting up Install Process
  
  Error: File contains no section headers.
  
  file: file:///etc/yum.repos.d/dag.repo, line: 1
  
  '[dag] name=Dag RPM Repository for Red Hat Enterprise Linux\n'

  When I download the package it gets downloaded perfectly, but when I try to install that package like,

  yum install ffmpeg

  I get the same error as shown above.

  My repo file contents are as shown below.

  [dag] name=Dag RPM Repository for Red Hat Enterprise Linux
  
  baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag
  
  gpgcheck=1
  
  enabled=1

  Can anyone help me, how I can overcome this error ?

  Thanks.