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  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (2866)

  • Vagrant provision fails to execute the next script without an obvious reason why

    14 juin 2016, par JakeTheSnake

    I’ve created/co-opted several bash scripts to provision my guest Ubuntu 14.04 OS ; the one giving me trouble right now is installing ffmpeg. When the script finishes, vagrant simply does nothing save for sending SSH keep-alives.

    Host OS : Windows 7 x64

    The last output before the infinitely repeating keep-alives is :

    INSTALL libavutil/sha.h
    
INSTALL libavutil/sha512.h
    
INSTALL libavutil/stereo3d.h
    
INSTALL libavutil/threadmessage.h
    
INSTALL libavutil/time.h
    
INSTALL libavutil/timecode.h
    
INSTALL libavutil/timestamp.h
    
INSTALL libavutil/tree.h
    
INSTALL libavutil/twofish.h
    
INSTALL libavutil/version.h
    
INSTALL libavutil/xtea.h
    
INSTALL libavutil/tea.h
    
INSTALL libavutil/lzo.h
    
INSTALL libavutil/avconfig.h
    
INSTALL libavutil/ffversion.h
    

    
DEBUG ssh: stdout: INSTALL      libavutil/libavutil.pc
    

    
DEBUG ssh: stdout: Done
    

    
DEBUG ssh: Sending SSH keep-alive...
    
DEBUG ssh: Sending SSH keep-alive...
    
DEBUG ssh: Sending SSH keep-alive...

    Here are the relevant scripts :

    Vagrantfile

    # -*- mode: ruby -*-
    
# vi: set ft=ruby :
    

    
# All Vagrant configuration is done below. The "2" in Vagrant.configure
    
# configures the configuration version (we support older styles for
    
# backwards compatibility). Please don't change it unless you know what
    
# you're doing.
    
Vagrant.configure(2) do |config|
    
  # The most common configuration options are documented and commented below.
    
  # For a complete reference, please see the online documentation at
    
  # https://docs.vagrantup.com.
    

    
  # Every Vagrant development environment requires a box. You can search for
    
  # boxes at https://atlas.hashicorp.com/search.
    
  config.vm.box = 'ubuntu/trusty64'
    
  config.vm.hostname = 'dev'
    

    
  config.ssh.forward_agent = true
    
  config.ssh.pty = true
    

    
  # Create a private network, which allows host-only access to the machine
    
  # using a specific IP.
    
  config.vm.network :private_network, type: :dhcp, auto_config: false
    

    
  # Create a public network, which generally matched to bridged network.
    
  # Bridged networks make the machine appear as another physical device on
    
  # your network.
    
  config.vm.network :public_network,
    
                    ip: '192.168.11.14',
    
                    bridge: 'Realtek PCIe GBE Family Controller'
    

    
  # Share an additional folder to the guest VM. The first argument is
    
  # the path on the host to the actual folder. The second argument is
    
  # the path on the guest to mount the folder. And the optional third
    
  # argument is a set of non-required options.
    
  #
    
  # Do not share root directory of vagrant
    
  # config.vm.synced_folder '.', '/vagrant', disabled: true
    
  # Share ruby repository directories
    
  config.vm.synced_folder '.',
    
                          '/home/vagrant/apps',
    
                          nfs: true,
    
                          mount_options: [
    
                            'nfsvers=3',
    
                            'vers=3',
    
                            'actimeo=1',
    
                            'rsize=8192',
    
                            'wsize=8192',
    
                            'timeo=14',
    
                            :nolock,
    
                            :udp,
    
                            :intr,
    
                            :user,
    
                            :auto,
    
                            :exec,
    
                            :rw
    
                          ]
    

    
  # Provider-specific configuration so you can fine-tune various
    
  # backing providers for Vagrant. These expose provider-specific options.
    
  # Example for VirtualBox:
    
  #
    
  config.vm.provider :virtualbox do |vb|
    
    # Display the VirtualBox GUI when booting the machine
    
    vb.gui = true
    

    
    # Use VBoxManage to customize the VM.
    
    vb.name = 'Ubuntu'
    
    vb.cpus = 4
    
    vb.memory = 2048
    
    vb.customize ['modifyvm', :id, '--vram', 64]
    
    vb.customize ['modifyvm', :id, '--audio', :dsound]
    
    vb.customize ['modifyvm', :id, '--audiocontroller', :ac97]
    
    vb.customize ['modifyvm', :id, '--clipboard', :bidirectional]
    
  end
    

    
  # Provisioning
    
  config.vm.provision :shell, path: './provisioning/user/install-apps.sh',
    
                              privileged: false, name: 'Applications'
    
  config.vm.provision :shell, path: './provisioning/user/install-rvm.sh',
    
                              args: 'stable', privileged: false, name: 'RVM'
    
  config.vm.provision :shell, path: './provisioning/user/install-ruby.sh',
    
                              args: '2.3.1', privileged: false, name: 'Ruby'
    
  config.vm.provision :shell, path: './provisioning/user/install-ruby-gems.sh',
    
                              privileged: false, name: 'Ruby Gems'
    
  config.vm.provision :shell, path: './provisioning/root/install-nginx.sh',
    
                              args: '1.9.9', name: 'Nginx'
    

    
  config.vm.provision :chef_solo do |chef|
    
    # chef.version = '12.10.40'
    

    
    # Paths to your cookbooks (on the host)
    
    chef.cookbooks_path = ['cookbooks']
    
    # Add chef recipes
    
    chef.add_recipe 'apt'
    
    chef.add_recipe 'git' # Is required for NPM
    
    chef.add_recipe 'sqlite'
    
    chef.add_recipe 'mysql'
    
    chef.add_recipe 'nodejs'
    
    chef.add_recipe 'memcached'
    
    chef.add_recipe 'imagemagick'
    
    chef.add_recipe 'optipng'
    
    chef.add_recipe 'sublime-text'
    
    chef.add_recipe 'tomcat'
    
  end
    
end

    install-apps.sh

    #!/usr/bin/env bash
    

    
echo Turning off console beeps...
    
grep '^set bell-style none' /etc/inputrc || echo 'set bell-style none' >> /etc/inputrc
    

    
echo Installing languages
    
sudo apt-get -y update
    
sudo locale-gen en_US en_US.UTF-8
    
sudo dpkg-reconfigure locales
    

    
echo Installing essential apps
    
sudo apt-get -y install build-essential curl yasm
    

    
echo Installing desktop apps
    
sudo apt-get -y install ubuntu-desktop
    

    
hash ffmpeg 2>/dev/null || {
    
  # Build ffmpeg
    
  echo Installing ffmpeg
    

    
  sudo apt-get -y install autoconf automake libass-dev libfreetype6-dev \
    
    libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev \
    
    libxcb-xfixes0-dev pkg-config texinfo zlib1g-dev libx264-dev libmp3lame-dev libopus-dev
    

    
  mkdir ~/ffmpeg_sources
    
  cd ~/ffmpeg_sources
    
  wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
    
  tar xjvf ffmpeg-snapshot.tar.bz2
    
  cd ffmpeg
    
  PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
    
    --prefix="$HOME/ffmpeg_build" \
    
    --pkg-config-flags="--static" \
    
    --extra-cflags="-I$HOME/ffmpeg_build/include" \
    
    --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
    
    --bindir="$HOME/bin" \
    
    --enable-gpl \
    
    --enable-libass \
    
    --enable-libfreetype \
    
    --enable-libmp3lame \
    
    --enable-libopus \
    
    --enable-libtheora \
    
    --enable-libvorbis \
    
    --enable-libx264 \
    
    --enable-nonfree
    

    
  PATH="$HOME/bin:$PATH" make
    
  make install
    
  make distclean
    
  hash -r
    

    
  source ~/.profile
    
}
    

    
echo Done
    
exit 0

    install-rvm.sh

    #!/usr/bin/env bash
    

    
echo Installing RVM gpg key
    
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 --trust-model always
    

    
echo Installing RVM
    
\curl -sSL https://get.rvm.io | bash -s $1
    

    
exit 0

    I won’t include the other scripts for the sake of brevity. When logging into vagrant with the gui nothing seems out of the ordinary, and ffmpeg is available...but nothing else is provisioned. No RVM, no Nginx, nothing.

  • Program hangs while using ffprobe on file with teletext subtitles

    6 août 2012, par Jon

    Having a problem running ffprobe on an MKV file that contains teletext subtitles. Code is in a C# library and works fine for other MKV files.

    Running the latest :

    ffprobe -v
    

    
ffprobe version N-42347-g299387e Copyright (c) 2007-2012 the FFmpeg developers
    
  built on Jul  8 2012 15:44:54 with gcc 4.7.1

    Code :

    string args = string.Format("-show_format -show_streams \"{0}\"", FileName);
    

    
Process p = new Process();
    
p.StartInfo = new ProcessStartInfo(FFPROBE_PATH);
    
p.StartInfo.Arguments = args;
    
p.StartInfo.CreateNoWindow = true;
    
p.StartInfo.RedirectStandardOutput = true;
    
p.StartInfo.RedirectStandardError = true;
    
p.StartInfo.UseShellExecute = false;
    
p.StartInfo.WorkingDirectory = System.IO.Directory.GetCurrentDirectory();
    
p.Start();
    

    
while (!p.HasExited)
    
{
    
    System.Threading.Thread.Sleep(100);
    
}
    

    
string output = p.StandardOutput.ReadToEnd().Replace("\r\n", "\n");

    The filename has a UNC path - tried using the FileName parameter but got an error, hence passing the filename via the arguments.

    If I run the following commandline :

    ffprobe -show_format -show_streams "\192.168.10.1\content\Breakfast At Tiffany's sample preview.mkv"

    I get the following output (note the errors - "Unsupported codec with id ...") :

    ffprobe -show_format -show_streams "\\192.168.10.1\content\Breakfast At Tiffany's sample preview.mkv"
    

    
ffprobe version N-42347-g299387e Copyright (c) 2007-2012 the FFmpeg developers
    
  built on Jul  8 2012 15:44:54 with gcc 4.7.1
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-fr
    
ei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-li
    
bmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutv
    
ideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --e
    
nable-zlib
    
  libavutil      51. 64.100 / 51. 64.100
    
  libavcodec     54. 33.100 / 54. 33.100
    
  libavformat    54. 15.102 / 54. 15.102
    
  libavdevice    54.  1.100 / 54.  1.100
    
  libavfilter     3.  1.100 /  3.  1.100
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
Input #0, matroska,webm, from 'c:\dev\content\Breakfast At Tiffany's sample preview.mkv':
    
  Metadata:
    
    creation_time   : 2011-12-14 21:27:01
    
  Duration: 00:01:02.77, start: 0.000000, bitrate: 4071 kb/s
    
    Stream #0:0: Video: h264 (High), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    
    Metadata:
    
      title           : x264   1920x1080   Bitrate=4776 kbps   AvQuant=21.406   Rip by ShivaShanti
    
    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s (default)
    
    Metadata:
    
      title           : English Ac3 5.1 chnls 448 kbps
    
    Stream #0:2(ita): Audio: ac3, 48000 Hz, stereo, s16, 224 kb/s
    
    Metadata:
    
      title           : Italian Ac3 2.0 chnls 224  kbps
    
    Stream #0:3(eng): Subtitle: text (default)
    
    Metadata:
    
      title           : english
    
    Stream #0:4(ita): Subtitle: text
    
    Metadata:
    
      title           : italian
    
    Stream #0:5(dan): Subtitle: text
    
    Metadata:
    
      title           : danish
    
    Stream #0:6(dut): Subtitle: text
    
    Metadata:
    
      title           : dutch
    
    Stream #0:7(fin): Subtitle: text
    
    Metadata:
    
      title           : finnish
    
    Stream #0:8(fre): Subtitle: text
    
    Metadata:
    
      title           : french
    
    Stream #0:9(ger): Subtitle: text
    
    Metadata:
    
      title           : german
    
    Stream #0:10(nor): Subtitle: text
    
    Metadata:
    
      title           : norwegian
    
    Stream #0:11(spa): Subtitle: text
    
    Metadata:
    
      title           : spanish
    
    Stream #0:12(swe): Subtitle: text
    
    Metadata:
    
      title           : swedish
    
    Stream #0:13(eng): Subtitle: text
    
    Metadata:
    
      title           : english hearig impaired
    
Unsupported codec with id 94210 for input stream 3
    
Unsupported codec with id 94210 for input stream 4
    
Unsupported codec with id 94210 for input stream 5
    
Unsupported codec with id 94210 for input stream 6
    
Unsupported codec with id 94210 for input stream 7
    
Unsupported codec with id 94210 for input stream 8
    
Unsupported codec with id 94210 for input stream 9
    
Unsupported codec with id 94210 for input stream 10
    
Unsupported codec with id 94210 for input stream 11
    
Unsupported codec with id 94210 for input stream 12
    
Unsupported codec with id 94210 for input stream 13
    
[STREAM]
    
index=0
    
codec_name=h264
    
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    
profile=High
    
codec_type=video
    
codec_time_base=1001/48000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
width=1920
    
height=1080
    
has_b_frames=2
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=16:9
    
pix_fmt=yuv420p
    
level=41
    
timecode=N/A
    
is_avc=1
    
nal_length_size=4
    
id=N/A
    
r_frame_rate=24000/1001
    
avg_frame_rate=24000/1001
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:title=x264   1920x1080   Bitrate=4776 kbps   AvQuant=21.406   Rip by ShivaShanti
    
[/STREAM]
    
[STREAM]
    
index=1
    
codec_name=ac3
    
codec_long_name=ATSC A/52A (AC-3)
    
profile=unknown
    
codec_type=audio
    
codec_time_base=1/48000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
sample_fmt=s16
    
sample_rate=48000
    
channels=6
    
bits_per_sample=0
    
dmix_mode=-1
    
ltrt_cmixlev=-1.000000
    
ltrt_surmixlev=-1.000000
    
loro_cmixlev=-1.000000
    
loro_surmixlev=-1.000000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=448000
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=eng
    
TAG:title=English Ac3 5.1 chnls 448 kbps
    
[/STREAM]
    
[STREAM]
    
index=2
    
codec_name=ac3
    
codec_long_name=ATSC A/52A (AC-3)
    
profile=unknown
    
codec_type=audio
    
codec_time_base=1/48000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
sample_fmt=s16
    
sample_rate=48000
    
channels=2
    
bits_per_sample=0
    
dmix_mode=-1
    
ltrt_cmixlev=-1.000000
    
ltrt_surmixlev=-1.000000
    
loro_cmixlev=-1.000000
    
loro_surmixlev=-1.000000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=224000
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=ita
    
TAG:title=Italian Ac3 2.0 chnls 224  kbps
    
[/STREAM]
    
[STREAM]
    
index=3
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=eng
    
TAG:title=english
    
[/STREAM]
    
[STREAM]
    
index=4
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=ita
    
TAG:title=italian
    
[/STREAM]
    
[STREAM]
    
index=5
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=dan
    
TAG:title=danish
    
[/STREAM]
    
[STREAM]
    
index=6
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=dut
    
TAG:title=dutch
    
[/STREAM]
    
[STREAM]
    
index=7
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=fin
    
TAG:title=finnish
    
[/STREAM]
    
[STREAM]
    
index=8
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=fre
    
TAG:title=french
    
[/STREAM]
    
[STREAM]
    
index=9
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=ger
    
TAG:title=german
    
[/STREAM]
    
[STREAM]
    
index=10
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=nor
    
TAG:title=norwegian
    
[/STREAM]
    
[STREAM]
    
index=11
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=spa
    
TAG:title=spanish
    
[/STREAM]
    
[STREAM]
    
index=12
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=swe
    
TAG:title=swedish
    
[/STREAM]
    
[STREAM]
    
index=13
    
codec_name=unknown
    
codec_long_name=unknown
    
profile=unknown
    
codec_type=subtitle
    
codec_time_base=1/1000
    
codec_tag_string=[0][0][0][0]
    
codec_tag=0x0000
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/1000
    
start_time=0.000000
    
duration=N/A
    
bit_rate=N/A
    
nb_frames=N/A
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
TAG:language=eng
    
TAG:title=english hearig impaired
    
[/STREAM]
    
[FORMAT]
    
filename=c:\dev\content\Breakfast At Tiffany's sample preview.mkv
    
nb_streams=14
    
format_name=matroska,webm
    
format_long_name=Matroska/WebM file format
    
start_time=0.000000
    
duration=62.776000
    
size=31947628
    
bit_rate=4071317
    
TAG:creation_time=2011-12-14 21:27:01
    
[/FORMAT]

    My problem is, the process appears to hang. I took out the 'CreateNoWindow' option and, of course, I get a big blank window onscreen that normally just flashs by on a normal file. With the teletext subtitle file however, it persists. If I manually close it, the program continues and I seem to get the output I want.

    So my question is, how can I debug this further, to find out why this is hanging and how to handle the error (or simply ignore it) and continue ?

  • python - subprocess.Popen fails to correctly pipe urllib3 Response

    11 février 2018, par user2963567

    I want to open a file over a network and pipe it directly to ffmpeg using subprocess.Popen. The goal is to stream the audio file data directly into ffmpeg. Here is the code :

    # test.py
    
import subprocess, sys, urllib3, time
    

    
http = urllib3.PoolManager()
    
r = http.urlopen('GET', sys.argv[1], preload_content=False)
    

    
args = 'ffmpeg -i - -y audio.mp3'.split(' ')
    
subprocess.Popen(args, stdin=r)
    

    
r.close()

    If I run a local HTTP server and give the program the url, it works successfully, and ffmpeg processes it.

    $ python3 test.py http://192.168.1.200/original.webm

    However if I try to retrieve from a remote server, such as that below, ffmpeg fails.

    $ python3 test.py https://cdn.discordapp.com/attachments/304959901376053248/412003156638040084/original.webm

    with the following output

    pipe:: Invalid data found when processing input

    I expected this code to produce the same results as running this terminal command. This command succeeds for both the discord cdn URL and a local HTTP server url.

    $ curl [file url] | ffmpeg -i - -y audio.mp3

    I’m using python 3.5 on Linux, and ffmpeg 3.4.1.

    edit 1

    I’m now leaning towards thinking it’s not ffmpeg’s fault, and more about how Popen is reading/writing the urllib response to a process’ stdin. By running a local netcat server and sending the output to a file ($ nc -l 1234 > nc_output.webm) and adjusting the script like so :

    import subprocess, sys, urllib3, time
    

    
http = urllib3.PoolManager()
    
r = http.urlopen('GET', sys.argv[1], preload_content=False)
    

    
args = 'nc 192.168.1.200 1234'.split(' ')
    
subprocess.run(args, stdin=r)
    

    
r.close()

    Then running as $ python3 test.py https://cdn.discordapp.com/attachments/304959901376053248/412003156638040084/original.webm

    By comparing nc_output.webm with the original.webm file, I can immediately see that nc_output.webm is slightly larger (4017585 bytes, vs 4008589 bytes). Attempting to play nc_output.webm (mpv, vlc, ffprobe) also fails, which explains why ffmpeg was complaining. Whatever Popen is doing to the stream’s bytes is sufficient to make the output file useless.

    However, the problem still ceases to occur if the URL points to a local HTTP server, such as one run from python -m SimpleHTTPServer which leads me to think that this is related to the latency associated with reading from a remote origin.

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