
Advanced search
Medias (1)
-
Collections - Formulaire de création rapide
19 February 2013, by
Updated: February 2013
Language: français
Type: Picture
Other articles (40)
-
Des sites réalisés avec MediaSPIP
2 May 2011, byCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Support audio et vidéo HTML5
10 April 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 (...) -
HTML5 audio and video support
13 April 2011, byMediaSPIP 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 (...)
On other websites (3045)
-
ffmpeg4android: overlay a video on video with opacity
21 June 2016, by LuongTruongI am using ffmpeg4android to edit video. Now, I am able to overlay a video on a video by using this command:
String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in_big.mp4","-strict","experimental", "-vf", "movie=/sdcard/videokit/in_small.mp4 [watermark]; [in][watermark] overlay=main_w-overlay_w-0:0 [out]","-s", "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab", "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out.mp4"};
Now, I want to change the opacity of the video "in_small.mp4" which will be on the top of another video.
Some useful links:
using ffmpeg to add overlay with opacity
ffmpeg overlay video with semi transparent videoFrom those links, I know that
all_opacity
should be the keyword in this case, but I do not know where to put it in the command.Please let me know if you have any ideas. Any suggestion would be appreciated!
-
Save live video stream to a video file
29 June 2023, by VISHAL DAGATrying to save live streaming video data into a (any) playable video file.
When I log the data I see the following (Put in comment in below code):-


axios.get(`http://192.168.1.33`, {
 responseType: 'stream',
}).then((response)=>{
 const stream = response.data
 stream.on('data', data => {
 console.log(data); // <buffer 4c="4c" 28="28" a1="a1" 0c="0c" 0d="0d" 14="14" 0e="0e" e1="e1" 8e="8e" eb="eb" 52="52" 48="48" d0="d0" c0="c0" 4a="4a" 68="68" 7b="7b" 0b="0b" c7="c7" 7c="7c" d2="d2" 55="55" 21="21" 0a="0a" a9="a9" 63="63" 12="12" 96="96" 9b="9b" 00="00" ed="ed" 49="49" 42="42" 1a="1a" 16="16" a4="a4" 1e="1e" 94="94" 50="50" 20="20" a3="a3" d8="d8" d5="d5" 1386="1386" more="more" bytes="bytes">
 // <buffer 0d="0d" cb="cb" 4b="4b" f7="f7" 77="77" 36="36" c8="c8" 42="42" 9d="9d" bb="bb" b3="b3" d6="d6" a3="a3" 72="72" 24="24" ff="ff" 00="00" 9e="9e" 29="29" b8="b8" 35="35" a5="a5" 48="48" ad="ad" e2="e2" 11="11" a9="a9" ec="ec" 38="38" 1d="1d" e1="e1" 91="91" 93="93" 73="73" bf="bf" a6="a6" 96="96" 62="62" 26="26" 57="57" f4="f4" a4="a4" 4258="4258" more="more" bytes="bytes">
 // ....
</buffer></buffer>


How can I save this data into a video file which can be played? I am starting to read from live stream at a certain point in time and reading it for few seconds - ex. 5 seconds. I need to have a video of that 5 seconds.


Note, when I use the url: http://192.168.1.33, I can see the video on the browser.


-
Concat video output does not skip ahead or go backwards like normal video
6 August 2020, by JOHN DADSi ran this basic concat code to combine an image and audio to output an mp4 video but the output video plays perfectly except for the fact that if I want to skip ahead in the video it goes back to the original position. This was run on python


audio = ffmpeg.input("beat.mp3")

picture = ffmpeg.input("image.jpg")

ffmpeg.concat(picture, audio, v=1, a=1).output("video3.mp4").run()