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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 (54)
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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 (7630)
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Should libavcodec handle non-packed/non-byte-aligned mp3 packets ?
27 août 2015, par Rhythmic FistmanI’m transcoding shoutcast streams using
libavcodec
and I noticed that during the day I get a few 10s’ of packets that it cannot decode without some help :-
Leading zero bytes before a packet sync word, e.g.
0x0000fffa
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non-byte aligned syncword, e.g
0x82a0fffa
In the first case I have to toss out the zero bytes and in the second I have to shift the data up by an odd number of nibbles.
I don’t have a watertight knowledge of the mp3 spec (is there one ?), but my impression was that the packet format was a bit oriented, not byte, so both types of packets look right to me.
So who is in the wrong here ?
Is it
libavcodec
for not parsing valid packets ?Or the stream encoder for producing non-standard packets ?
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ffmpeg I want to combine the three command in one command
12 janvier 2019, par Abdulwahed AbuAbedhello I’m new here I want to marge many command in one, like add subtitle file , image (watermark) and write word in top right in video .
without effecting video Quality and size , and if it possible make it fast like a single command .ffmpeg -i input.mkv -vf subtitles=subtitle.srt -sn out.mkv
ffmpeg -i input.mkv -vf "movie=image.png [watermark]; [in][watermark] overlay=10:10 [out]" out.mkv
ffmpeg -i input.mkv -vf drawtext=text='Hallo':x=10:y=H-th-10:fontfile=/path/to/font.ttf:fontsize=12:fontcolor=white:shadowcolor=black:shadowx=5:shadowy=5" out.mkv -
subprocess.Popen crashes when run in background
17 mars 2016, par user2810298In a program I’m working with right now, I try to check for the version of FFMPEG that is installed on the users machine. This works perfectly fine by using subprocess.Popen when run in the foreground OR when run in a detached screen.
However, when you run it in the background without screen (e.g. COMMAND &> /dev/null &) this process crashes the program. (see below) I’ve seen some people having similar issues on the web, but I still can’t seem to fix this...
I’ve Any ideas ?
version_ffmpeg = subprocess.Popen(["ffmpeg","-version"],stdout=subprocess.PIPE,stderr=None)
f_out = version_ffmpeg.communicate()
(then...)
if f_out --> 3rd word contains --> etc.