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  • La sauvegarde automatique de canaux SPIP

    1 April 2010, by

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

  • Ajouter notes et légendes aux images

    7 February 2011, by

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • HTML5 audio and video support

    13 April 2011, by

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

On other websites (4647)

  • Download multiple streams simultaneously ffmpeg/avconv

    20 December 2015, by Henry David Thorough

    I have multiple source audio streams and need to download and write those to separate files. What’s the most efficient way to do this? I’ve been using ffmpeg in multiple shells, which is obviously a ridiculous hack.

    To ease illustration, below are commands to separately download two streams. What’s the most efficient way to consolidate these processes?

    ffmpeg -i http://dw-radio-english-mp3.ng.akacast.akamaistream.net/7/779/135362/v1/gnl.akacast.akamaistream.net/dw-radio-english-mp3 dw.mp3
    

    
ffmpeg -i http://br-mp3-bayern2sued-m.akacast.akamaistream.net/7/731/256282/v1/gnl.akacast.akamaistream.net/br_mp3_bayern2sued_m bayern2sued.mp3

  • Feeding a series of images to ffmpeg as each image is created [closed]

    5 February 2013, by Mark Schneider

    I'm trying to use ffmpeg to build a 1280x720 slide-show from a sequence of pictures and videos, but I have concerns about potential disk I/O bottleneck.

    I expect a typical slide-show to have about 50 pictures and 2-3 videos (10-15 seconds each at 30 fps). I would like to show each picture for 3-4 seconds (possibly with a
    Ken Burns effect) with a smooth 2 second crossfade between each set of pictures (or for pictures adjacent to videos - between the picture and the first/last frame of the video).

    Given about 50 pictures, the crossfades alone would amount to about 3,000 images (50 transitions x 2 secs/transition x 30 fps). And I suppose if I implement a Ken Burns effect during each picture's 3-4 second showing, I'd have to provide ffmpeg with individual images for each of those frames. (I'm writing a script in Ruby that will pull a list of images from a database and in turn call ImageMagick to create the individual images for each frame. As I understand it, the RMagick library interfaces with ImageMagick such that the output images come back as in-memory objects without needing to write to disk. FWIW, I'm developing in Windows 8 and will deploy to Heroku.)

    All of the slideshow examples I've found online feed ffmpeg a set of images which have already been created. However, in an effort to avoid waiting on considerable disk I/O, I'd like to feed each image to ffmpeg as the image is created rather than create them all in advance.

    Is there a way to send each image file to ffmpeg on the fly as the file is created in memory?

  • How to stream (udp) a series of tiff images using ffmpeg

    20 April 2020, by Michael Carey

    I have written a program that receives images from a camera and then packages the images into a basic tiff format. Then I broadcast the tiff image out on UDP on localhost port 8999.

    



    I then run ffmpeg (on Windows 10) from a command line as follows:

    



    ffmpeg -i udp://127.0.0.1:8999 -preset ultrafast -vcodec libx264 -tune zerolatency -f mpegts udp://127.0.0.1:9000


    



    The idea with the above command is to receive the tiff images from my program, convert them into mpeg, and to then rebroadcast it out on a different port. (once I prove this, I may clip and compress the image as well)

    



    Finally, I open another command window and run ffPlay as follows so that I may see my output:

    



    ffplay udp://127.0.0.1:9000


    



    My output from the ffmpeg command is here:

    



    ffmpeg -i udp://127.0.0.1:8999 -preset ultrafast -vcodec libx264 -tune zerolatency -f mpegts udp://127.0.0.1:9000
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
[tiff_pipe @ 0000021ebbe2d280] Could not find codec parameters for stream 0 (Video: tiff, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, tiff_pipe, from 'udp://127.0.0.1:8999':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: tiff, none, 25 tbr, 25 tbn, 25 tbc
Output #0, mpegts, to 'udp://127.0.0.1:9000':
Output file #0 does not contain any stream


    


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