Recherche avancée

Médias (91)

Autres articles (13)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    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 (...)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (4576)

  • How to get bash script to convert mp3 to wav using ffmpeg working ?

    29 avril 2017, par ADASFA

    Every time I run this script it doesn’t work. I get the output bash : command not found

    I ran bash -x to see what was the problem but I don’t understand the errors

    bash -x mp3towav.sh 
    
+ for f in '*.mp3'
    
+ ffmpeg -i '' -acodec pcm_s16le -ac 1 -ar .wav
    
ffmpeg version 3.3 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Trailing options were found on the commandline.
    
: No such file or directory

    script is this

      1 #!/bin/bash
    
  2 for f in *.mp3; do ffmpeg -i "$file" -acodec pcm_s16le -ac 1 -ar "${file%.mp3}".wav;done

    when running the corrected code provided I still get an error of :

    ffmpeg version 3.3 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Trailing options were found on the commandline.
    
Input #0, mp3, from 'hiraeth [ep].mp3':
    
  Duration: 00:23:39.36, start: 0.025057, bitrate: 128 kb/s
    
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    
    Metadata:
    
      encoder         : LAME3.99r
    
    Side data:
    
      replaygain: track gain - -4.100000, track peak - unknown, album gain - unknown, album peak - unknown, 
    
At least one output file must be specified

  • Upper limit on FFMPEG/libx264 frame sizes ?

    22 mars 2014, par Chaotic

    I'm trying to use FFMPEG to transcode a video with very large frames (4096 x 4096). It's a short video - just under two minutes, but the source video file is 15.8GB. (The video is an animation designed to be projected onto planetarium domes.)

    The source file is a Quicktime MOV containing uncompressed Photo-JPEG images (with audio, too). When I tell FFMPEG to transcode my MOV file into an MP4 file, it simply says :

    Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    Not very helpful, but yes, I've verified that all of the parameters are correct and/or defaults. In fact, if I change the requested output size to 2048x2048, then everything works just fine. That's why I suspect that there's an upper bound in the encoder.

    I am kerflummoxed. Any suggestions that result in a successful transcode will be greatly appreciated. (At this point I am also willing to consider alternatives to FFMPEG.)

    The Facts

    I run FFMPEG from a script :

    set srcFile=%1
    
set dstFile=%srcFile:.mov=.mp4%
    

    
ffmpeg -i %srcFile% -movflags faststart -q:a 0 -q:v 0 -pix_fmt yuv420p -sws_flags gauss -s 4096x4096 %dstFile%

    The Output

        ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers
    
    built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC)
    
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --ena
    
ble-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 19.100 / 52. 19.100
    
  libavcodec     55.  0.100 / 55.  0.100
    
  libavformat    55.  0.100 / 55.  0.100
    
  libavdevice    54.  4.100 / 54.  4.100
    
  libavfilter     3. 45.103 /  3. 45.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'also-sprach-zarathustra-4k.mov':
    
  Metadata:
    
    major_brand     : qt
    
    minor_version   : 537199360
    
    compatible_brands: qt
    
    creation_time   : 2013-01-11 23:41:30
    
  Duration: 00:01:40.57, start: 0.000000, bitrate: 1357694 kb/s
    
    Stream #0:0(eng): Audio: pcm_s16be (twos / 0x736F7774), 44100 Hz, stereo, s16, 1411 kb/s
    
    Metadata:
    
      creation_time   : 2013-01-11 23:41:30
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj420p, 4096x4096 [SAR 1:1 DAR 1:1], 1356281 kb/s, 30 fps, 30
    
tbr, 3k tbn, 3k tbc
    
    Metadata:
    
      creation_time   : 2013-01-11 23:41:30
    
      handler_name    : Apple Alias Data Handler
    
File 'also-sprach-zarathustra-4k.mp4' already exists. Overwrite ? [y/N] y
    
using SAR=1/1
    
[libx264 @ 003b9c80] frame MB size (256x256) > level limit (36864)
    
[libx264 @ 003b9c80] DPB size (4 frames, 262144 mbs) > level limit (2 frames, 184320 mbs)
    
[libx264 @ 003b9c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI1 BMI2
    
x264 [error]: malloc of size 17305600 failed
    
Output #0, mp4, to 'also-sprach-zarathustra-4k.mp4':
    
  Metadata:
    
    major_brand     : qt
    
    minor_version   : 537199360
    
    compatible_brands: qt
    
    Stream #0:0(eng): Video: h264, yuv420p, 4096x4096 [SAR 1:1 DAR 1:1], q=-1--1, 90k tbn, 30 tbc
    
    Metadata:
    
      creation_time   : 2013-01-11 23:41:30
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: none, 44100 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2013-01-11 23:41:30
    
      handler_name    : Apple Alias Data Handler
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (mjpeg -> libx264)
    
  Stream #0:0 -> #0:1 (pcm_s16be -> libvo_aacenc)
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    PS : Yes, for those playing at home, it is the theme to 2001 - A Space Odyssey. You can see a 1K YouTube version here : 2001 - A Fulldome Space Odyssey And yes, in a planetarium with a good sound system, it is absolutely EPIC.

  • avformat/movenc : Add 2048x1080 to the aivx case

    6 décembre 2014, par Rens Dijkshoorn
    avformat/movenc : Add 2048x1080 to the aivx case

    This improves compatibility of such files with apple tools
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/movenc.c

Navigation