
Recherche avancée
Médias (1)
-
Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (107)
-
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP 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 (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
Sur d’autres sites (11925)
-
ffmpeg doesn't recognize after adding to path
26 janvier 2021, par Gurgen HovakimyanI installed ffmpeg, added it to path and I can find it in command line, but in jupyter notebook when I try to use bcr.bar_chart_race function it returns me this error message
**Exception : You do not have ffmpeg installed on your machine. Download
ffmpeg from here : https://www.ffmpeg.org/download.html.


Matplotlib's original error message below:
 Requested MovieWriter (ffmpeg) not available**



-
Libvpx unknown encoder with php exec
5 juin 2016, par Justin TullockI have centos7 with ffmpeg compiled with libvpx. I can run
ffmpeg -i gif.gif -c:v libvpx -crf 12 -b:v 500K webm.webm
which works perfectly but when I try the same command with php exec() it returns this :
{array(16) { [0]=> string(66) "ffmpeg version 2.6.8 Copyright (c) 2000-2016
the FFmpeg developers" [1]=> string(55) " built with gcc 4.8.5 (GCC)
20150623 (Red Hat 4.8.5-4)" [2]=> string(1053) " configuration: --
refix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --
incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --
arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -
fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-
switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-
gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 -
-enable-libfaac --enable-nonfree --enable-libfdk-aac --enable-nonfree --
disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame
--enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse --
enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 --
enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --
enable-postproc --enable-pthreads --disable-static --enable-shared --enable-
gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-
runtime-cpudetect" [3]=> string(40) " libavutil 54. 20.100 / 54. 20.100"
[4]=> string(40) " libavcodec 56. 26.100 / 56. 26.100" [5]=> string(40) "
libavformat 56. 25.101 / 56. 25.101" [6]=> string(40) " libavdevice 56.
4.100 / 56. 4.100" [7]=> string(40) " libavfilter 5. 11.102 / 5. 11.102"
[8]=> string(40) " libavresample 2. 1. 0 / 2. 1. 0" [9]=> string(40) "
libswscale 3. 1.101 / 3. 1.101" [10]=> string(40) " libswresample 1. 1.100 /
1. 1.100" [11]=> string(40) " libpostproc 53. 3.100 / 53. 3.100" [12]=>
string(30) "Input #0, gif, from 'gif.gif':" [13]=> string(29) " Duration:
N/A, bitrate: N/A" [14]=> string(76) " Stream #0:0: Video: gif, bgra,
563x307, 25 fps, 25 tbr, 100 tbn, 100 tbc" [15]=> string(24) "Unknown
encoder 'libvpx'" } int(1)ffmpeg -v returns this
ffmpeg version N-80161-g7e0623b Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
configuration: --enable-libvpx
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 44.100 / 57. 44.100
libavformat 57. 37.101 / 57. 37.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 46.100 / 6. 46.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101What am I missing ?
-
Specifying input duration of .aac with ffmpeg
28 septembre 2020, par JademaloI had an error with an mp4 recording, and after recovering the video and audio streams I've still got an issue. The aac audio file is 160kb/s CBR. However, ffmpeg returns this when trying to work with it ;


[aac @ 000001187e6944c0] Estimating duration from bitrate, this may be inaccurate
Input #0, aac, from 'result.aac':
 Duration: 00:38:41.01, bitrate: 174 kb/s
 Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 174 kb/s



That duration and bitrate is totally wrong. It should be 42 minutes long, and it definitely has a bitrate of 160 kb/s.


This results in the audio being very inconsistently timed, as well as having all sorts of other issues. It's very weird.


Is there any way I can specify that the input is 160 cbr to try and wrangle it back into a usable file ?