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Autres articles (65)
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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. -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (6587)
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Unable to join silent at the beginning of still image with ffmpeg
6 juillet 2022, par LXGI like to create a still image video for youtube this way


[image]


[1 sec silent ] [1.wav] [1 sec silent]


ffmpeg -i ".\imported\1.png" -i ".\imported\1.wav" -f lavfi -i anullsrc=cl=stereo:r=44100:d=1 -c:v libx264 -tune stillimage -ac 2 -c:a aac -b:a 192k -pix_fmt yuv420p -filter_complex "[0:v][1:a] [2:a] concat=n=3:a=1 [a]" out.mp4



I've tried in several ways but doesn't work, I get this error maybe because I don't understand how to use "concat" sources the error is :


Stream specifier ':v' in filtergraph description [0:v][1:a][2:a] concat=n=3:a=1 [a] matches no streams.



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How to capture audio/video from two different browser windows
30 août 2018, par ColegatronI am writting an application that needs to run two browser windows and need to capture audio and video from from each of them in different output files.
It runs under linux (ubuntu18, pulseaudio)As per ffmpeg and xvfb documentation I see how to reproduce each window in a different framebuffer and capture the image getting different outputs.
But as far as I can see ffmpeg uses -i to specify the audio device to capture from, making both videos audio mixed. What I need is to specify an application/process/window.Question is : how can I capture also the audio for each browser window without mix both windows audio ?
Thanks a lot
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Revision afd2f68dae : Revert "VP9_COPY_CONVOLVE_SSE2 optimization" This reverts commit a5e97d874b16ae
5 août 2015, par James ZernChanged Paths :
Modify /vpx_dsp/x86/vpx_convolve_copy_sse2.asm
Revert "VP9_COPY_CONVOLVE_SSE2 optimization"This reverts commit a5e97d874b16ae5826b68515f1e35ffb44361cf8.
Additionally :
Revert "vpx_convolve_copy_sse2 : fix win64"This reverts commit 22a8474fe7ec30d96f746dc6e4b23771758c071e.
This change performs poorly on various x86_64 devices affecting
performance by 1-3% at 1080P. Performance on chromebook like devices was
mixed neutral to slightly negative, so there should be minimal change
there.Change-Id : I95831233b4b84ee96369baa192a2d4cc7639658c