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• Evolution #4350 : Faire l’ajout de la config mini dans le paquet.xml d’ecrire

  11 décembre 2019, par b b

  Et un revert de plus avec r24465 car le paquet.xml du core semble tellement dérogatoire que l’ajout d’un necessite sur une version de PHP pétait le menu dans le privé...

• Fully scraping m3u8 with ffmpeg without recoding

  12 novembre 2022, par gsemyong

  There is a manifest living on the server (index.m3u8) containing data about child manifests (for different video qualities) which in turn contain segment names. Is it possible to provide to ffmpeg (or any other tool) url of index.m3u8, to get all index.m3u8, child manifests and video segments, preserving playlist structure and files as is (that means without recoding, etc.) ?

  


  Thank you in advance !

  


  I tried searching for different flags. There is an option to download segments without recoding, but the names and manifests are not preserved. Tried to find a tool to generate manifests from existing segments based on different rules - didn't find any. I think I can always reserve to writing manifests generation from scratch, but would like to avoid it :)

  


• Working with content-type quicktime in ffmpeg throwing error `moov not found`

  6 mai 2019, par user10204157

  So my program is setup to download a video and stream it into a file. These videos are .mp4 and .mov.

  The problem is that .mov files do not work and I think it’s just the way I am streaming the file. But I am not sure. Because .mp4 files work without any errors. But when I use .mov files I get an error saying

  Powershell Errors : [mov,mp4,m4a,3gp,3g2,mj2 @ 000002707b9cb700] moov atom not found

  Which is coming from this powershell script :

  ffmpeg -i $Args[0] -vcodec copy -acodec copy -movflags +faststart $Args[1]

  The code that calls this script is as follows :

      streamVideos_PROMISES.push(
  
        axios({
  
          method: "get",
  
          url: video.url,
  
          responseType: "stream"
  
        })
  
      );
  
    }
  
  });
  
  Promise.all(streamVideos_PROMISES)
  
    .then(function(response) {
  
      response.map(response_item => {
  
        let tempFileName = new Date().valueOf();
  
        let videoType = response_item.headers["content-type"].split("/")[1];
  
        if (videoType === "quicktime") videoType = "mov"; <---Maybe the issue?
  
        const file = fs.createWriteStream(
  
          `./cache/videos/${tempFileName + "."}${videoType}`
  
        );
  
        var spawn = require("child_process").spawn,
  
          child;
  
        response_item.data.pipe(file);
  
        child = spawn("powershell.exe", [
  
          "./scripts/ffmpeg_convert.ps1",
  
          `./cache/videos/${tempFileName + "."}${videoType}`,
  
          ` ./cache/converted_videos/${tempFileName + "."}${videoType}`
  
        ]);
  
        child.stdout.on("data", function(data) {
  
          console.log("Powershell Data: " + data);
  
        });
  
        child.stderr.on("data", function(data) {
  
          console.log("Powershell Errors: " + data);
  
        });
  
        child.on("exit", function() {
  
          console.log("Finished converting thumbnails");
  
          return thumbsupply.generateThumbnail(
  
            `./cache/converted_videos/${tempFileName + "."}${videoType}`,
  
            {
  
              mimetype: response_item.headers["content-type"]
  
            }
  
          );
  
        });
  
        child.stdin.end(); //end input
  
      });
  
    })
  
    .catch(err => {
  
      console.log(err);
  
      res.status(500).json({ Error: "Could not generate thumbnail" });
  
    });

  note
  The response_item.headers["content-type"].split("/") for .mov is quicktime, so I assumed that I could interchange the extensions...Which is probably wrong.

  Edit
  So I manually typed in the $args as follows :

  ffmpeg -i "./cache/videos/1556897345129.mov" -vcodec copy -acodec copy -movflags +faststart "./cache/converted_videos/are_you_kidding_me.mov"

  and it works.

  Edit 2

  child = spawn("powershell.exe", [
  
      "./scripts/ffmpeg_convert.ps1",
  
      "./cache/videos/1556897345129.mov", <-- Using the string literal works.
  
      ` ./cache/converted_videos/${tempFileName + "."}${videoType}`
  
    ]);