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Autres articles (43)

  • 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.

  • 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 (...)

  • Les statuts des instances de mutualisation

    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

Sur d’autres sites (8480)

  • extracting h264 raw video stream from mp4 or flv with ffmpeg generate an invalid stream

    10 octobre 2013, par neo2006

    I'm trying to extract the video stream from an mp4 or flv h264 video (youtube video) using ffmpeg. The original video (test.flv) play without trouble with ffplay , ffprobe gives an error as follow :

    ffprobe version N-55515-gbbbd959 Copyright (c) 2007-2013 the FFmpeg developers
    
built on Aug 13 2013 18:06:32 with gcc 4.7.3 (GCC)
    
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
  libavutil      52. 42.100 / 52. 42.100
    
  libavcodec     55. 27.100 / 55. 27.100
    
  libavformat    55. 13.102 / 55. 13.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 82.100 /  3. 82.100
    
  libswscale      2.  4.100 /  2.  4.100
    
  libswresample   0. 17.103 /  0. 17.103
    
  libpostproc    52.  3.100 / 52.  3.100
    
[flv @ 000000000031ea80] Stream discovered after head already parsed
    
Input #0, flv, from 'test.flv':
    
  Metadata:
    
    starttime       : 0
    
    totalduration   : 142
    
    totaldatarate   : 692
    
    bytelength      : 12286492
    
    canseekontime   : true
    
    sourcedata      : B42B95507HH1381414522145462
    
    purl            :
    
    pmsg            :
    
  Duration: 00:02:22.02, start: 0.000000, bitrate: 692 kb/s
    
    Stream #0:0: Video: h264 (Main), yuv420p, 640x268, 568 kb/s, 23.98 tbr, 1k t
    
bn, 47.95 tbc
    
    Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 131 kb/s
    
    Stream #0:2: Data: none
    
Unsupported codec with id 0 for input stream 2

    to get rid of the extra streams ( I only needs the video) I used the following ffmpeg command line :

    ffmpeg -i test.flv -map 0:0 -vcodec copy -an -f h264 test.h264

    The new stream is unreadable by any player including ffplay and gives an error with ffprobe :
    test.h264 : Invalid data found when processing inputq= 0B f=0/0

    Any body have an idea about what am I doing wrong ?

    I also tried simpler youtube command line :

    ffmpeg -i test.flv -vcodec copy -an test.h264

    if I use another format (avi for example) :

    ffmpeg -i test.flv -vcodec copy -an test.avi

    the output video is valid.

    If I transcode the video

    ffmpeg -i test.flv -an test.h264

    the output is also valid

    Any suggestions ?

  • FFMPEG on Fedora but PHP Compilation confliction

    11 octobre 2013, par UMI

    I have running Xampp with PHP5.5 on Fedora from Apache Friend, with default settings what the installer package do on Linux.

    When I install FFMPEG successfully and try to load from php.ini it always says :

    *

    11-Oct-2013 14:05:51 Europe/Berlin] PHP Warning:  PHP Startup: ffmpeg: Unable to initialize module
    
Module compiled with module API=20060613
    
PHP    compiled with module API=20121212
    
These options need to match
    
in Unknown on line 0

    *

    The only thing which is confusing me is that when I did phpize even that I already installed xampp server which means I have PHP running. FFMPEG phpize did not work and I had to install php-devel. Does that mean that FFMPEG is configured with PHP, other than the installed with XAMPP ? I am not sure what is happening. Whatever I do I always receive this error message in php_error_log file.

    It is amazing :) that I just run below command to see what version of PHP is, I have and below are the results which are shocking one because I am in a feeling that I have PHP 5.5 installed and running from XAMMP.

    [root@localhost ~]# php -v
    
PHP 5.2.6 (cli) (built: May  8 2008 08:53:44)
    
Copyright (c) 1997-2008 The PHP Group
    
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies

    How can I get this covered that if I simple install XAMPP server on linux and want to install and configure FFMPEG along with ?

  • FFMpeg Concatenation Filters : Stream specifier ':0' in filtergraph matches no streams

    7 février 2017, par Anthony Eden

    I am developing an application that relies heavily on FFMpeg to perform various transformations on audio files. I am currently testing my FFMpeg configuration on the command line.

    I am trying to concatenate multiple audio files which are in different formats (Primarily MP3, MP2 & WAV). I have been using the official TRAC documentation (https://trac.ffmpeg.org/wiki/How%20to%20concatenate%20(join%2C%20merge)%20media%20files#differentcodec) to help me with this and have created the following command :

    ffmpeg -i OHIn.wav -i OHOut.wav -filter_complex '[0:0] [1:0] concat=n=2:a=1 [a]' -map '[a]' output.wav

    However, when I run this on Mac OS X using version 2.0.1 of FFMpeg, I get the following error message :

    Stream specifier ':0' in filtergraph description [0:0] [1:0] concat=n=2:a=1 [a] matches no streams.

    Here is my full output from the terminal :

    ~/ffmpeg -i OHIn.wav -i OHOut.wav -filter_complex '[0:0] [1:0] concat=n=2:a=1 [a]' -map '[a]' output.wav
    

    
ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Aug 15 2013 10:56:46 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
    
  configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --arch=x86_64 --enable-runtime-cpudetect
    
  libavutil      52. 38.100 / 52. 38.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.100 / 55. 12.100
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 79.101 /  3. 79.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Guessed Channel Layout for  Input Stream #0.0 : stereo
    
Input #0, wav, from 'OHIn.wav':
    
  Duration: 00:00:06.71, bitrate: 1411 kb/s
    
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
    
Guessed Channel Layout for  Input Stream #1.0 : stereo
    
Input #1, wav, from 'OHOut.wav':
    
  Duration: 00:00:07.19, bitrate: 1411 kb/s
    
    Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
    
Stream specifier ':0' in filtergraph description [0:0] [1:0] concat=n=2:a=1 [a] matches no streams.

    I do not understand why this does not work. FFMpeg shows that the streams 0:0 and 1:0 exist in the source files. The only other similar problems online have surrounded the use of the single quote in Windows, however testing of this confirm it does not apply to my Mac command line.

    Any help would be much appreciated.

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