
Recherche avancée
Autres articles (107)
-
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 (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Sélection de projets utilisant MediaSPIP
29 avril 2011, parLes exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
Ferme MediaSPIP @ Infini
L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)
Sur d’autres sites (6350)
-
How to make doppler effect on audio with ffmpeg [duplicate]
3 janvier 2019, par Adam EstelThis question already has an answer here :
How can i make the doppler effect on audio with ffmpeg.I mean : Sound run from left to right and opposite, just like this video :
https://www.youtube.com/watch?v=j35K4QC_9bM
I research ffmpeg for a while but I can’t firgure the audio filter i can start with
Thank you for helping me
Have a nice day. -
Passing FFMpeg Options into FrameGrabber Has No Effect At All
29 janvier 2019, par peter benceI’m using
FFMpegFrameGrabber
on android to consume an rtmp live stream, that streams at 30fps, i tried to set the grabber frame rate usingsetFrameRate(4)
andsetOption("framerate","4")
, in order to resolve the lag, but neither worked. I also passed a set of options into the grabber such as("fflags","nobuffer")
that seems to be working for others, but non has an effect too. Igrabber = FFmpegFrameGrabber.createDefault(this.listener.getVideoUrlOrPath());
grabber.setTimeout(Math.abs((int) GlobalHandler.configMnger.getConnectionTimeout() / 1000));
grabber.setOption("fflags", "nobuffer");
grabber.setOption("nobuffer", "1");
grabber.setOption("max_delay", "0");
grabber.setOption("hwaccel", "auto");
grabber.setOption("vsync", "0");
grabber.setOption("r", "4");
grabber.setOption("preset", "ultrafast");
grabber.setOption("tune", "zerolatency");
grabber.setOption("analyzeduration", "0");
grabber.setOption("fflags", "flush_packets");
grabber.setOption("fflags", "nofillin");
grabber.setOption("fflags", "noparse");
grabber.setOption("flags", "low_delay");
grabber.setOption("framedrop", "1");
grabber.setOption("fflags", "discardcorrupt");
grabber.setOption("framerate", "4");
grabber.setFrameRate(4);
grabber.setVideoCodec(avcodec.AV_CODEC_ID_H264);
grabber.start();
Frame image;
while((image=grabber.grabImage())!=null){
...
}Please Note that remove all options gives identical results, where the only working option i have here is
timout
that is set using thesetTimeout
function above.Any help please ?. Thanks !!
-
How To combining multiple filters in working ffmpeg code
23 mai 2019, par skooFor a project I’m using FFmpeg to edit a short video. At the moment I’m applying four different lines to accomplice what is want.
1:slow mo > input.mp4 - output1.mp4
2:overlay > output1.mp4 - output2.mp4
3:fade out to black > output2.mp4 - output3.mp4
4:add image (company logo) > output3.mp4 - output.mp4
1: ffmpeg -i input.mp4 -filter_complex "[0:v]trim=0:1.8,setpts=PTS-STARTPTS[v1]; [0:v]trim=1.8:3,setpts=PTS-STARTPTS[v2]; [0:v]trim=start=3,setpts=PTS-STARTPTS[v3]; [v2]setpts=PTS/0.22[slowv]; [v1][slowv][v3]concat=n=3:v=1:a=0[out]" -map "[out]" -c:v libx264 -preset ultrafast output.mp4
2: ffmpeg -i output.mp4 -i overlay.png -filter_complex "[0:v][1:v]overlay=38:950" -codec:a copy output1.mp4
3: ffmpeg -i output1.mp4 -vf "fade=type=out:duration=0.5:start_time=8.5" -c:a copy output2.mp4
4: ffmpeg -y -i output2.mp4 -i output1.avi -filter_complex "[0:v:0][1:v:0]concat=n=2:v=1[outv]" -map "[outv]" output.mp4My Question : How can I combine these four separate lines to one FFmpeg code.