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Médias (1)
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1 000 000 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
Autres articles (82)
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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. -
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 -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;
Sur d’autres sites (6548)
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avfilter/vf_datascope : add option to show only subset of components
17 janvier 2021, par Paul B Mahol -
show output before making / rendering the output file ffmpeg [closed]
5 janvier 2021, par Education 4FunI wanna build an editing application using FFmpeg so when someone gives a video and do his operations I wanna show result before starting of rendering like any normal video editing
can some one let me know how it can be shown as all the operations he did should effect the video
like is there any way to do in FFmpeg or what does video editors do to achieve it
Thank you


Aditional info :-
like I made a basic GUI application using pyqt5 with some buttons to rotate, increase audio, increase the speed of the video, conversion b/n multiple types of video formats, and changing aspect ratio. so I just wanna show output before executing / clicking submit for rendering Hope now its a bit clear.


Finally i found the solution


ffplay test.mp4 -af "volume=8.0,atempo=4.0" -vf "transpose=2,transpose=2,setpts=1/4*PTS" -aspect 4:2



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Show portrait video to landscape on Videojs player as HLS ffmpeg Laravel
11 décembre 2020, par TwistCodeI am currently using the ffmpeg library through laravel sdk. For the landscape videos I have no problem with the scaling filters application, but with the portrait videos I need the video to look like the thumbnail below :




But when I play the video, the player is distorted.




Note : It should be noted that when I work with horizontal scales, the player looks good, but the video is distorted.






this is my PHP Laravel code implementation


FFMpeg::FromDisk('local')->open($this->media)
 ->exportForHLS()
 ->setSegmentLength(6) // optional
 /*
 ->addFormat($lowBitrate, function ($media) {
 $media->addFilter(function ($filters, $in, $out) {
 $filters->custom($in, 'scale=854x480,setsar=1,setdar=16:9', $out); // $in, $parameters, $out

 });
 })*/
 // Portrait test
 ->addFormat($lowBitrate, function ($media) { 
 $media->addFilter(function ($filters, $in, $out) {
 // $filters->custom($in, "scale='w=min(720,trunc((480*33/40*dar)/2+0.5)*2):h=min(480,trunc((704*40/33/dar)/2+0.5)*2)',pad='w=720:h=480:x=(ow-iw)/2:y=(oh-ih)/2',setsar='r=40/33'", $out); // $in, $parameters, $out
 $filters->custom($in, "scale=239:-1", $out); // $in, $parameters, $out
 });
 })
 /*
 ->addFormat($midBitrate, function ($media) {
 $media->scale(1280, 720);
 })
 ->addFormat($highBitrate, function ($media) {
 $media->scale(1920, 1080);
 })*/
 ->save("public/hls/$video->id/$video->hash_name.m3u8");



This is the command that runs at the server level for portrait videos.




[2020-12-10 17:48:17] local.INFO : ffmpeg running command
'/usr/bin/ffmpeg' '-y' '-threads' '12' '-i'
'/home/vagrant/homesteadprojects/maquillate/storage/app/videos_directory/pexels-cottonbro-6054875.mp4'
'-filter_complex' '[0]scale=640 :-2[v0]' '-map' '[v0]' '-vcodec'
'libx264' '-b:v' '1200k' '-g' '48' '-hls_playlist_type' 'vod'
'-hls_time' '6' '-hls_segment_filename'
'/home/vagrant/homesteadprojects/maquillate/storage/app/public/hls/35/NXp9waz4AO5Q14Lu6T3JbjSRY496RrtiPGIz6IOJ_0_1200_%05d.ts'
'-acodec' 'aac' '-b:a' '128k'
'/home/vagrant/homesteadprojects/maquillate/storage/app/public/hls/35/NXp9waz4AO5Q14Lu6T3JbjSRY496RrtiPGIz6IOJ_0_1200.m3u8'




I don't really know if my problem is at the server or frontend level, but I would greatly appreciate any contribution.