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  • 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" ;

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (3406)

  • C# capture specific frame from video file using ffmpeg takes too long

    6 septembre 2018, par Ditza

    I am trying to take specific frame from full HD video file. I am using Accord.Video.FFMPEG.
    The read ReadVideoFrame takes something like 200ms. I need It to be much faster.
    Am I doing something wrong or this is the time it should takes ? What should I use to get the frame in few milliseconds ?

    VideoFileReader reader = new VideoFileReader();
    
reader.Open(source);
    
int frameN = (int)Math.Floor(((reader.FrameRate).ToDouble() * pos.Milliseconds) / 1000);
    
Bitmap bkg = reader.ReadVideoFrame(frameN);

    Thanks,
    Ditza

  • av_interleaved_write_frame() : Immediate exit requested when streaming WebM

    21 décembre 2013, par kd0hdf

    Ok, so I am trying to stream live video from my HD Homerun Prime (a network tv tuner that outputs mpeg2 video) to the web as WebM with ffserver. However, when I start ffmpeg it will run normally for a few seconds (and even output video through ffserver) then after 2-3 seconds it will freeze and I have to use ctrl+c to get back to a prompt.What am I missing here ? Sorry if this is a total newbie question.

    I should also mention I followed a tutorial here : https://www.virag.si/2012/11/streaming-live-webm-video-with-ffmpeg/

    FFmpeg command

    new@Desktop:~$ ffmpeg -i <network tuner="tuner"> <ffserver>
    
ffmpeg version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
    
  configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
    
  libavutil      52. 58.100 / 52. 58.100
    
  libavcodec     55. 45.101 / 55. 45.101
    
  libavformat    55. 22.100 / 55. 22.100
    
  libavdevice    55.  5.102 / 55.  5.102
    
  libavfilter     3. 92.100 /  3. 92.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mpegts @ 0x326f980] Could not find codec parameters for stream 0 (Unknown: none (ETV1 / 0x31565445)): unknown codec
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
[mpegts @ 0x326f980] Could not find codec parameters for stream 1 (Unknown: none (ETV1 / 0x31565445)): unknown codec
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
[mpegts @ 0x326f980] Could not find codec parameters for stream 4 (Unknown: none ([134][0][0][0] / 0x0086)): unknown codec
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
Input #0, mpegts, from &#39;http://192.168.0.199:5004/auto/v39&#39;:
    
  Duration: N/A, start: 85618.589122, bitrate: 192 kb/s
    
  Program 8 
    
    Stream #0:0[0x1093]: Unknown: none (ETV1 / 0x31565445)
    
    Stream #0:1[0x1094]: Unknown: none (ETV1 / 0x31565445)
    
    Stream #0:2[0x1095]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 704x480 [SAR 10:11 DAR 4:3], max. 15000 kb/s, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    
    Stream #0:3[0x1096](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 192 kb/s
    
    Stream #0:4[0x1097]: Unknown: none ([134][0][0][0] / 0x0086)
    
[libvpx @ 0x3275060] v1.2.0
    
Output #0, ffm, to &#39;http://localhost:8090/feed1.ffm&#39;:
    
  Metadata:
    
    creation_time   : now
    
    encoder         : Lavf55.22.100
    
    Stream #0:0(eng): Audio: vorbis (libvorbis), 22050 Hz, mono, fltp, 64 kb/s
    
    Stream #0:1: Video: vp8 (libvpx), yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=10-42, 1000 kb/s, 1000k tbn, 29.97 tbc
    
Stream mapping:
    
  Stream #0:3 -> #0:0 (ac3 -> libvorbis)
    
  Stream #0:2 -> #0:1 (mpeg2video -> libvpx)
    
Press [q] to stop, [?] for help
    
^Cav_interleaved_write_frame(): Immediate exit requested70 bitrate= 936.1kbits/s dup=51 drop=0    
    
Received signal 2: terminating.
    
new@Desktop:~$ 
    
</ffserver></network>

    FFserver configuration :

    Port 8090                      # Port to bind the server to
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 10000             # Maximum bandwidth per client
    
                               # set this high enough to exceed stream bitrate
    
CustomLog -
    
NoDaemon                       # Remove this if you want FFserver to daemonize after start
    

    
<feed>               # This is the input feed where FFmpeg will send
    
   File /tmp/feed1.ffm         # video stream.
    
   FileMaxSize 1G              # Maximum file size for buffering video
    
   #ACL allow 127.0.0.1         # Allowed IPs
    
</feed>
    

    
<stream>              # Output stream URL definition
    
   Feed feed1.ffm              # Feed from which to receive video
    
   Format webm
    

    
   # Audio settings
    
   AudioCodec vorbis
    
   AudioBitRate 64             # Audio bitrate
    

    
   # Video settings
    
   VideoCodec libvpx
    
   VideoSize 720x576           # Video resolution
    
   VideoFrameRate 25           # Video FPS
    
   AVOptionVideo flags +global_header  # Parameters passed to encoder
    
                                       # (same as ffmpeg command-line parameters)
    
   AVOptionVideo cpu-used 0
    
   AVOptionVideo qmin 10
    
   AVOptionVideo qmax 42
    
   AVOptionVideo quality good
    
   AVOptionAudio flags +global_header
    
   PreRoll 15
    
   StartSendOnKey
    
   VideoBitRate 1000            # Video bitrate
    
</stream>
    

    
<stream>            # Server status URL
    
   Format status
    
   # Only allow local people to get the status
    
   ACL allow localhost
    
   ACL allow 192.168.0.0 192.168.255.255
    
</stream>
    

    
<redirect>    # Just an URL redirect for index
    
   # Redirect index.html to the appropriate site
    
   URL <removed url="url" to="to" ffmpeg="ffmpeg" homepage="homepage">
    
</removed></redirect>

    ...and for the FFserver side

    new@Desktop:/var/www$ ffserver -d -f /etc/ffserver.conf
    
ffserver version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
    
  configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
    
  libavutil      52. 58.100 / 52. 58.100
    
  libavcodec     55. 45.101 / 55. 45.101
    
  libavformat    55. 22.100 / 55. 22.100
    
  libavdevice    55.  5.102 / 55.  5.102
    
  libavfilter     3. 92.100 /  3. 92.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
Fri Dec 20 23:53:20 2013 FFserver started.
    
Fri Dec 20 23:53:29 2013 127.0.0.1 - - New connection: GET /feed1.ffm
    
Fri Dec 20 23:53:29 2013 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175

  • ffmpeg : create a video from images and sounds

    27 septembre 2018, par Yuri Gusak

    You need to create a video from a set of pictures and sounds using ffmpeg.
    Set of pictures : frame_% d.jpg
    Sounds :
    sound1.mp3 (from 0 ms)
    sound2.mp3 (from 1000 ms)
    sound3.mp3 (from 2000 ms)

    I can create a video with one sound :

    -i frame_% d.jpg -i sound1.mp3 -r 30 -s 1280x720 -preset ultrafast -crf 25 -shortest movie.mp4

    and it works.

    But I need to add some sounds at different times. How can I do that ? May be -filter_complex will help ?

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