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Autres articles (47)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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 (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (10367)
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Flutter (Dart) : Record two videos, merge them and then view new video in gallery
14 juin 2020, par Ittai BarkaiI am aware that there already exists a solution to a very similar question, which can be found on the following link : Flutter/Dart : Find two video segments and merge them into a single valid video file ? However, being relatively new to Flutter (and programming in general) I cannot seem to replicate the desired result.



My app is very simple and currently looks like this :






I click on the button "Record Video" to record two videos, which are both successfully stored into the device's gallery. Using the Flutter image_picker and gallery_saver packages and the following piece of code :



void _recordVideo() async {
 ImagePicker.pickVideo(source: ImageSource.camera)
 .then((File recordedVideo) {
 if (recordedVideo != null && recordedVideo.path != null) {
 setState(() {
 _buttonText = 'Saving in Progress...';
 });
 GallerySaver.saveVideo(recordedVideo.path).then((_) {
 setState(() {
 _buttonText = 'Video Saved!\n\nClick to Record New Video';
 if (_storedVideoOne == null) {
 _storedVideoOne = recordedVideo;
 print('video 1 stored');
 } else {
 _storedVideoTwo = recordedVideo;
 print('video 2 stored');
 _videoMerger();
 }
 });
 });
 }
 });
 }




I can view these videos when I click on the button at the bottom "View Video From Gallery".



Next I try to merge these two stored video files, using the flutter_ffmpeg package, as well as following the solution provided in the stack overflow question mentioned above. I try and do this using the following function I wrote :



void _videoMerger() async {


 final appDir = await syspaths.getApplicationDocumentsDirectory();
 String rawDocumentPath = appDir.path;
 final outputPath = '$rawDocumentPath/output.mp4';

 final FlutterFFmpeg _flutterFFmpeg = new FlutterFFmpeg();

 String commandToExecute = '-i ${_storedVideoOne.path} -i ${_storedVideoTwo.path} -filter_complex \'[0:0][1:0]concat=n=2:v=0:a=1[out]\' -map \'[out]\' outputPath';
 _flutterFFmpeg.execute(commandToExecute).then((rc) => print("FFmpeg process exited with rc $rc"));

 }




But after running the function I do not seem to get a new combined video, which should be stored in outputPath and ideally also viewable in the gallery. Uploaded the Flutter project onto GitHub here :



https://github.com/IttaiBarkai/Flutter-Video-Merger



Any help would be greatly appreciated :)


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ffmpeg-how to add text to video without encoding [on hold]
27 décembre 2013, par user3139491I want to add text to video without encoding.how to do this.
I create this codeffmpeg -i file.mov -vf drawtext="fontfile=/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerif.ttf:text='Text to write':fontsize=20:fontcolor=black:x=100:y=100" final.mov
this code word well but the cpu hit the peak.
so only want to do this without encoding.
is -vcodec copy map can be used ???? -
Anomalie #4187 : Connecté en Anglais (langue principale français) pas de bouton pour ajouter les p...
5 octobre 2018, par jluc -Je propose un patch général pour extraire_multi :
#4189