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Autres articles (38)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
MediaSPIP Player : les contrôles
26 mai 2010, parLes contrôles à la souris du lecteur
En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...) -
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 (...)
Sur d’autres sites (4649)
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How to convert n numbers of images into a video slideshow with putting some transition on each images with flutter_ffmpeg ?
26 avril 2023, par Shruti Ramnandan SharmaI'm trying to convert images into a video slideshow with some transition. I have used flutter_ffmpeg plugin , with this plugin I have created with only 3 images but I want to add n numbers of images but couldn't able to find solutions for it. I tried to add more images but it throws error.


I'm gonna add some piece of code below :


- 

- Instance of FlutterFFmpeg




final FlutterFFmpeg _flutterFFmpeg = FlutterFFmpeg(); 


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- Picking multiple images from the gallery and applying command to convert images into a video




void mergeImageVideo() async {
 final ImagePicker picker = ImagePicker();
 final images = await picker.pickMultiImage();

 var im1 = images[0].path;

 var im2 = images[1].path;

 var im3 = images[2].path;

 //-shortest
 openLoadingDialog(context, "Creating video");
 generateFilePath("ImageVideoMerge").then((outputFile) {
 var backgroundColor = 'FFF44336';

 String ffmpegCommand = VideoUtil.generateImagesToVideoScript(
 im1, im2, im3, outputFile, 'mpeg4', '', backgroundColor);

 print("ffmpegCommand==> $ffmpegCommand");
 _flutterFFmpeg.execute(ffmpegCommand).then((v) {
 if (v == 0) {
 var file = File(outputFile);
 Navigator.pop(context);
 showSnackBar(context, "Images Added Successfully", Colors.black);
 updateVideoPlayer(file);
 } else {
 Navigator.pop(context);
 }
 }).then((executionId) {
 });
 });
 }



method to get ffmpeg command (images into video with scale transition)


static String generateImagesToVideoScript(
 String image1Path,
 String image2Path,
 String image3Path,
 String videoFilePath,
 String videoCodec,
 String customOptions,
 String backgroundColor
 ) {

 // ignore: prefer_interpolation_to_compose_strings
 return "-hide_banner -y -loop 1 -i '" +
 image1Path +
 "' " +
 "-loop 1 -i \"" +
 image2Path +
 "\" " +
 "-loop 1 -i \"" +
 image3Path +
 "\" " +
 "-filter_complex " +
 "\" " +
 "[0:v]setpts=PTS-STARTPTS,scale=w=640:h=424,setsar=sar=1/1,split=2[stream1out1][stream1out2];" +
 "[1:v]setpts=PTS-STARTPTS,scale=w=640:h=424,setsar=sar=1/1,split=2[stream2out1][stream2out2];" +
 "[2:v]setpts=PTS-STARTPTS,scale=w=640:h=424,setsar=sar=1/1,split=2[stream3out1][stream3out2];" +
 "[stream1out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=3,select=lte(n\\,90)[stream1overlaid];" +
 "[stream1out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=1,select=lte(n\\,30)[stream1ending];" +
 "[stream2out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=2,select=lte(n\\,60)[stream2overlaid];" +
 "[stream2out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=1,select=lte(n\\,30),split=2[stream2starting][stream2ending];" +
 "[stream3out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=2,select=lte(n\\,60)[stream3overlaid];" +
 "[stream3out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#$backgroundColor,trim=duration=1,select=lte(n\\,30)[stream3starting];" +
 "[stream2starting][stream1ending]blend=all_expr='if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)':shortest=1[stream2blended];" +
 "[stream3starting][stream2ending]blend=all_expr='if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)':shortest=1[stream3blended];" +
 "[stream1overlaid][stream2blended][stream2overlaid][stream3blended][stream3overlaid]concat=n=5:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]\"" +
 " -map [video] -vsync 2 -async 1 " +
 customOptions +
 "-c:v " +
 videoCodec +
 " -r 30 " +
 videoFilePath;
 }



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Saving an audio blob into the backend or Azure as an mp3 file using ffmpeg
2 juin 2021, par AnneI have an asp.net webforms, and I am using javascript and navigator.mediaDevices.getUserMedia to record an audio message.
This message has to be loaded into Azure once recorded.


So far, I have :
2 buttons, start and stop to record the audio blob


At the end of the process, I am trying to use ffmpeg to record the blob into a folder in my application, I can then load the file into Azure (I have the code ready for this one).
Or ideally, save directly to Azure.


I have installed ffmpeg in my application using nuget packages (I tried Xabe ffmpeg downloader and Accord video ffmpeg), however ffmpeg is not recognised when I run the function SendData() and I get this error :
Uncaught Error : Module name "ffmpeg" has not been loaded yet for context : _. Use require([])


My questions are :


- 

- How can I install ffmpeg in an asp.net wbeform and register it on the page ?
- Is there another way to save an audio blob to Azure ?
- Is it possible to save the audio chunks into a memory stream that I can later upload into Azure ?








Thank you for your help




<code class="echappe-js"><script>&#xA; navigator.mediaDevices.getUserMedia({ audio: true }).then(stream => { handlerFunction(stream) })&#xA;&#xA; record.onclick = e => {&#xA; record.disabled = true;&#xA; stopRecord.disabled = false;&#xA; audioChunks = [];&#xA; rec.start();&#xA; }&#xA;&#xA; stopRecord.onclick = e => {&#xA; record.disabled = false;&#xA; stop.disabled = true;&#xA; rec.stop();&#xA; }&#xA;&#xA;&#xA; function handlerFunction(stream) {&#xA; rec = new MediaRecorder(stream);&#xA; rec.ondataavailable = e => {audioChunks.push(e.data);&#xA; if (rec.state == "inactive") {&#xA; let blob = new Blob(audioChunks, { type: &#x27;audio/mpeg-3&#x27; });&#xA; recordedAudio.src = URL.createObjectURL(blob);&#xA; recordedAudio.controls = true;&#xA; sendData(blob)&#xA; }&#xA; }&#xA; }&#xA;&#xA; function sendData(data) {&#xA; var ffmepg = require("ffmpeg");&#xA; try {&#xA; var Path = data;&#xA; var process = new ffmepg("Path");&#xA; process.then(function (audio) {audio.fnExtractSoundToMP3("~//AppData//Audio//test.mp3", function (error, file) {&#xA; if (!error)&#xA; console.log("Audio file: " &#x2B; file);&#xA; });&#xA; }, function (err) {&#xA; console.log("Error: " &#x2B; err);&#xA; });&#xA; }&#xA; catch (e) {&#xA; console.log("Catch e.code" &#x2B; e.code);&#xA; console.log("Catch e.msg" &#x2B; e.msg);&#xA; }&#xA; }&#xA; </script>

<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>




 
 
 
 
 <code class="echappe-js"><script src='http://stackoverflow.com/Scripts/require.js'></script>



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Unrecognized option 'crf'
6 septembre 2022, par Arjit KaushalI am trying compress video using ffmpeg but i am facing errors in the command.
Although it runs perfectly fine on my linux terminal.
( ffmpeg -i input.avi -vcodec libx264 -crf 24 output.avi).

my code :


void _compress() {
 if (_videoModel == null) return;
 String inputPath = _videoModel!.originalCachePath;
 String outputPath = _videoModel!.editCachePath;
 
 FFmpegKit.execute("-i $inputPath -vcodec libx264 -crf 24 -y $outputPath")
 .then((session) async {
 final returnCode = await session.getReturnCode();
 if (ReturnCode.isSuccess(returnCode)) {
 Navigator.pushNamed(context, PreviewPage.routeName,
 arguments: _videoModel);
 } else if (ReturnCode.isCancel(returnCode)) {
 print("compress cancel");
 } else {
 print("compress error : $returnCode");
 FFmpegKitConfig.enableLogCallback((log){
 final message = log.getMessage();
 print(message);
 });
 
 
 }
 });
 }


I am facing the following errors :
Unrecognized option 'crf',
I/flutter (31056) : Error splitting the argument list,
Option not found.


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