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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (63)
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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
Sur d’autres sites (8173)
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Django Celery FFMPEG : convert video files
3 janvier 2012, par sultanI'm trying to convert video files using FFMPEG via Celery tasks. The generated command to be executed looks like
ffmpeg -i /path/to/flv -ar 22050 -ab 96k -r 24 -b 600k -f flv path/to/flv/transcoded/flv_movie.flv
and when I call the task
TranscodeVideoTask.delay(src=filepath, dst=destination_path)
I getflv_movie.flv
file but its size is only about200Kb
and debug outputPress [q] to stop, [?] for help
[h264 @ 0x10205a200] Reference 3 >= 3
[h264 @ 0x10205a200] error while decoding MB 7 5, bytestream (690)
[h264 @ 0x10205a200] concealing 762 DC, 762 AC, 762 MV errors
frame= 40 fps= 0 q=2.0 Lsize= 136kB time=00:00:01.66 bitrate= 668.2kbits/s dup=0 drop=9
video:114kB audio:20kB global headers:0kB muxing overhead 1.814991%TranscodeVideoTask source
@task(name="transcode.media")
def TranscodeVideoTask(src, dst):
command = commands.get("flv") % {"src": src, "dst": dst}
os.system(src, dst)
filename = os.path.join(dst, "flv_movie.flv")
YamdiInjector.yamdi(filename, dst)When the same command executed manually in the console it works just fine.
UPDATE
So far I've composed the following ffmpeg instructions in my bash file and it converts almost every avi file I tested already#!/bin/sh
INPUT=$1
OUTPUT=$2/flv_movie.flv
echo "Input file: ${INPUT}"
echo "Output file: ${OUTPUT}"
echo `ffmpeg -y -i $INPUT -ar 44100 -ab 128k -ac 2 -sameq -f flv $OUTPUT`What may cause this strange problem ?
Sultan
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ffmpeg - wrong length of video
29 mars 2012, par VictorI use ffmpeg to convert a video from mp4 to flv and mpg formats. Just rough conversion with few params :
ffmpeg -i my_file.mp4 -an -f flv my_new_file.flv
(I don't need sound so I specified -an)
When I convert file with 2:23 length I get 0:23 length of flv(or mpg) files. Why does that happen ?
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Change Audio pitch and add blur effect in video using ffmpeg Php
29 mars 2012, par santosh yadavI have a video clip and i want to change Identity of person on Video,
For That i want to change pitch of audio and add blur effect on video,
I have use following things for change pitch but it is not provide better result,
ffmpeg -i w.mpg -vcodec copy -an tmpVideo.mpg
ffmpeg -i w.mpg tmpAudio.wav
rubberband -p 6 tmpAudio.wav tmpAudioRB.wav
ffmpeg -i tmpVideo.mpg -i tmpAudioRB.wav -vcodec copy finalVideow_6.mpgAny Better solution for Change pitch and add blur effect,