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Médias (1)
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Sintel MP4 Surround 5.1 Full
13 mai 2011, par
Mis à jour : Février 2012
Langue : English
Type : Video
Autres articles (39)
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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Supporting all media types
13 avril 2011, parUnlike 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 (...)
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Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)
Sur d’autres sites (5548)
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Generating movie from python without saving individual frames to files
31 juillet 2022, par PaulI would like to create an h264 or divx movie from frames that I generate in a python script in matplotlib. There are about 100k frames in this movie.



In examples on the web [eg. 1], I have only seen the method of saving each frame as a png and then running mencoder or ffmpeg on these files. In my case, saving each frame is impractical. Is there a way to take a plot generated from matplotlib and pipe it directly to ffmpeg, generating no intermediate files ?



Programming with ffmpeg's C-api is too difficult for me [eg. 2]. Also, I need an encoding that has good compression such as x264 as the movie file will otherwise be too large for a subsequent step. So it would be great to stick with mencoder/ffmpeg/x264.



Is there something that can be done with pipes [3] ?



[1] http://matplotlib.sourceforge.net/examples/animation/movie_demo.html



[2] How does one encode a series of images into H264 using the x264 C API ?



[3] http://www.ffmpeg.org/ffmpeg-doc.html#SEC41


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Generating movie from python without saving individual frames to files
31 juillet 2022, par PaulI would like to create an h264 or divx movie from frames that I generate in a python script in matplotlib. There are about 100k frames in this movie.



In examples on the web [eg. 1], I have only seen the method of saving each frame as a png and then running mencoder or ffmpeg on these files. In my case, saving each frame is impractical. Is there a way to take a plot generated from matplotlib and pipe it directly to ffmpeg, generating no intermediate files ?



Programming with ffmpeg's C-api is too difficult for me [eg. 2]. Also, I need an encoding that has good compression such as x264 as the movie file will otherwise be too large for a subsequent step. So it would be great to stick with mencoder/ffmpeg/x264.



Is there something that can be done with pipes [3] ?



[1] http://matplotlib.sourceforge.net/examples/animation/movie_demo.html



[2] How does one encode a series of images into H264 using the x264 C API ?



[3] http://www.ffmpeg.org/ffmpeg-doc.html#SEC41


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Using ffprobe/ffmpeg to extract individual frames and types in encode order
24 janvier 2018, par HélderI am able to extract keyframes using ffmpeg. Something like this that I have been using :
ffmpeg -i input.mp4 -vf "select='eq(pict_type\,I)" -vsync vfr -qscale:v 2 I-thumbnails-%02d.png -vf "select='eq(pict_type\,B)" -vsync vfr -qscale:v 2 B-thumbnails-%02d.png -vf "select='eq(pict_type\,P)" -vsync vfr -qscale:v 2 P-thumbnails-%02d.png
Now the issue is, I would like these extracted frames to be in encode order, if possible, the way they are extracted should have a timestamp or any way to know that they start in a certain sequence, example, from start to end :
IBBBIPPB......BI
but in a way that I can sort the frames in the encode sequence.
I want to use this to load in python to extract motion vectors but they should all follow the encoding sequence. Any help ?
Edit :
Changed playback to encode sequence(or order).