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• Revision 109827 : Ajout d’options sur les saisies, et y++ - checkboxes et radios : ...

  11 juin 2018, par nicolas.dorigny@… — Log

  Ajout d’options sur les saisies, et y++
   checkboxes et radios : pouvoir désactiver certains choix (disable_choix)
   checkboxes : nombre maximal de choix possibles (maximum_choix)
   textarea : nombre maximal de caractères (longueur_max)
  avec une vérification côté client (navigateur) en JS
  TODO :
   vérifications en PHP
   traduire la chaine en JS dans saisies/textarea.html, ligne 34 (chaine de texte avec une variable), pour l’instant en français "en dur"

• FFmpeg error with ffmpeg.FS("readfile", "output.mp4"). trying to get ffmpeg to work in the react app

  21 juin 2024, par Paul Tham

   const stackVideos = useCallback(
    async (video1) => {
      try {
        console.log("Fetching video2 from storage...");
        const video2Ref = ref(storage, "video2.mp4");
        const video2Url = await getDownloadURL(video2Ref);
        const video2Blob = await (await fetch(video2Url)).blob();

        console.log("Writing video1 to FFmpeg FS...");
        await ffmpeg.FS("writeFile", "video1.mp4", await fetchFile(video1));

        console.log("Writing video2 to FFmpeg FS...");
        await ffmpeg.FS("writeFile", "video2.mp4", await fetchFile(video2Blob));

        console.log("Files in FFmpeg FS after write:");
        const files = await ffmpeg.FS("readdir", "/");
        console.log(files);

        const { start, end } = inputs[0];
        const startSeconds = new Date(`1970-01-01T${start}Z`).getTime() / 1000;
        const endSeconds = new Date(`1970-01-01T${end}Z`).getTime() / 1000;
        const duration = endSeconds - startSeconds;

        console.log("Running FFmpeg command...");
        await ffmpeg.run(
          "-i",
          "video1.mp4",
          "-ss",
          startSeconds.toString(),
          "-t",
          duration.toString(),
          "-i",
          "video2.mp4",
          "-filter_complex",
          "[0:v]scale=1080:-1[v1];[1:v]scale=-1:1920/2[v2scaled];[v2scaled]crop=1080:1920/2[v2cropped];[v1][v2cropped]vstack=inputs=2,scale=1080:1920[vid]",
          "-map",
          "[vid]",
          "-map",
          "0:a",
          "-c:v",
          "libx264",
          "-crf",
          "23",
          "-preset",
          "veryfast",
          "-shortest",
          "output1.mp4"
        );

        console.log("Files in FFmpeg FS after run:");
        const filesAfterRun = await ffmpeg.FS("readdir", "/");
        console.log(filesAfterRun);

        console.log("Reading output1.mp4 from FFmpeg FS...");
        const data = await ffmpeg.FS("readfile", "output1.mp4");
        console.log("after the FS readfile");
        const url = URL.createObjectURL(
          new Blob([data.buffer], { type: "video/mp4" })
        );
        setStackedVideo(url);
        setOutputFileReady(true); // Mark output file as ready
      } catch (err) {
        console.error("FFmpeg error output:", err);
        setError(`FFmpeg run error: ${err.message}`);
        setIsProcessing(false);
      }
    },
    [inputs]
  );


  


  My error seems to be stemming from this line :

  


   const data = await ffmpeg.FS("readfile", "output1.mp4");


  


  Seeing the ffmpeg.wasm documentation i thought the functions for some of the functions had changed, but when I changed it, it seemed like they did not recognise the new functions. Sometimes this will also give me some other errors like worker.js which I dont understand enough to debug this myself.

  


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• Clarification on using FFmpeg in an open source app with —enable-gpl and —enable-nonfree [closed]

  24 avril 2020, par Alex Hoffman

  Can someone please clarify the legality of bundling and using the full version of FFmpeg (with included libx264 and libx265 and other gpl codecs) in an open source app.

  



  I don't want to modify anything, all I want to do is to bundle compiled FFmpeg binaries downloaded from their website with my open source app which would use them for media files editing.

  



  I want to bundle the full version of FFmpeg since without --enable-gpl and --enable-nonfree, not being able to process h264, FFmpeg becomes effectivelly useless. So I want to know if I have to bundle the binaries compiled without --enable-gpl and --enable-nonfree or can I bundle the full version with shared linking (libs separated from the executable) ?